[ 807.755767][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 807.756128][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 807.756128][ T10] netdev_get_by_index+0x5e/0x80 [ 807.756128][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.756128][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.756128][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.756128][ T10] ipv6_add_addr+0x411/0x2000 [ 807.756128][ T10] inet6_addr_add+0x30e/0xa40 [ 807.756128][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.756128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.756128][ T10] netlink_rcv_skb+0x130/0x360 [ 807.756128][ T10] netlink_unicast+0x449/0x710 [ 807.756128][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.756128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.756128][ T10] ___sys_sendmsg+0xee/0x170 [ 807.756128][ T10] __sys_sendmsg+0xcd/0x170 [ 807.756128][ T10] do_syscall_64+0xc6/0x1e0 [ 807.756128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.756128][ T10] [ 807.758354][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 807.758354][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.758354][ T10] ipv6_find_idev+0x102/0x170 [ 807.758354][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.758354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.758354][ T10] netlink_rcv_skb+0x130/0x360 [ 807.758354][ T10] netlink_unicast+0x449/0x710 [ 807.758354][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.758354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.758354][ T10] ___sys_sendmsg+0xee/0x170 [ 807.758354][ T10] __sys_sendmsg+0xcd/0x170 [ 807.758354][ T10] do_syscall_64+0xc6/0x1e0 [ 807.758354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.758354][ T10] [ 807.760045][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 807.760045][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.760045][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.760045][ T10] ipv6_find_idev+0x102/0x170 [ 807.760045][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.760045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.760045][ T10] netlink_rcv_skb+0x130/0x360 [ 807.760045][ T10] netlink_unicast+0x449/0x710 [ 807.760045][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.760045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.760045][ T10] ___sys_sendmsg+0xee/0x170 [ 807.760045][ T10] __sys_sendmsg+0xcd/0x170 [ 807.760045][ T10] do_syscall_64+0xc6/0x1e0 [ 807.760045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.760045][ T10] [ 807.761936][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 807.762236][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 807.762236][ T10] netdev_get_by_index+0x5e/0x80 [ 807.762236][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.762236][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.762236][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.762236][ T10] ipv6_add_addr+0x411/0x2000 [ 807.762236][ T10] inet6_addr_add+0x30e/0xa40 [ 807.762236][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.762236][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.762236][ T10] netlink_rcv_skb+0x130/0x360 [ 807.762236][ T10] netlink_unicast+0x449/0x710 [ 807.762236][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.762236][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.762236][ T10] ___sys_sendmsg+0xee/0x170 [ 807.762236][ T10] __sys_sendmsg+0xcd/0x170 [ 807.762236][ T10] do_syscall_64+0xc6/0x1e0 [ 807.762236][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.762236][ T10] [ 807.764422][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 807.764422][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.764422][ T10] ipv6_find_idev+0x102/0x170 [ 807.764422][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.764422][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.764422][ T10] netlink_rcv_skb+0x130/0x360 [ 807.764422][ T10] netlink_unicast+0x449/0x710 [ 807.764422][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.764422][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.764422][ T10] ___sys_sendmsg+0xee/0x170 [ 807.764422][ T10] __sys_sendmsg+0xcd/0x170 [ 807.764422][ T10] do_syscall_64+0xc6/0x1e0 [ 807.764422][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.764422][ T10] [ 807.766112][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 807.766112][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.766112][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.766112][ T10] ipv6_find_idev+0x102/0x170 [ 807.766112][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.766112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.766112][ T10] netlink_rcv_skb+0x130/0x360 [ 807.766112][ T10] netlink_unicast+0x449/0x710 [ 807.766112][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.766112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.766112][ T10] ___sys_sendmsg+0xee/0x170 [ 807.766112][ T10] __sys_sendmsg+0xcd/0x170 [ 807.766112][ T10] do_syscall_64+0xc6/0x1e0 [ 807.766112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.766112][ T10] [ 807.767955][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 807.768239][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 807.768239][ T10] netdev_get_by_index+0x5e/0x80 [ 807.768239][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.768239][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.768239][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.768239][ T10] ipv6_add_addr+0x411/0x2000 [ 807.768239][ T10] inet6_addr_add+0x30e/0xa40 [ 807.768239][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.768239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.768239][ T10] netlink_rcv_skb+0x130/0x360 [ 807.768239][ T10] netlink_unicast+0x449/0x710 [ 807.768239][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.768239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.768239][ T10] ___sys_sendmsg+0xee/0x170 [ 807.768239][ T10] __sys_sendmsg+0xcd/0x170 [ 807.768239][ T10] do_syscall_64+0xc6/0x1e0 [ 807.768239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.768239][ T10] [ 807.770454][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 807.770454][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.770454][ T10] ipv6_find_idev+0x102/0x170 [ 807.770454][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.770454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.770454][ T10] netlink_rcv_skb+0x130/0x360 [ 807.770454][ T10] netlink_unicast+0x449/0x710 [ 807.770454][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.770454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.770454][ T10] ___sys_sendmsg+0xee/0x170 [ 807.770454][ T10] __sys_sendmsg+0xcd/0x170 [ 807.770454][ T10] do_syscall_64+0xc6/0x1e0 [ 807.770454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.770454][ T10] [ 807.772159][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 807.772159][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.772159][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.772159][ T10] ipv6_find_idev+0x102/0x170 [ 807.772159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.772159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.772159][ T10] netlink_rcv_skb+0x130/0x360 [ 807.772159][ T10] netlink_unicast+0x449/0x710 [ 807.772159][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.772159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.772159][ T10] ___sys_sendmsg+0xee/0x170 [ 807.772159][ T10] __sys_sendmsg+0xcd/0x170 [ 807.772159][ T10] do_syscall_64+0xc6/0x1e0 [ 807.772159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.772159][ T10] [ 807.774062][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 807.774358][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 807.774358][ T10] netdev_get_by_index+0x5e/0x80 [ 807.774358][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.774358][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.774358][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.774358][ T10] ipv6_add_addr+0x411/0x2000 [ 807.774358][ T10] inet6_addr_add+0x30e/0xa40 [ 807.774358][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.774358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.774358][ T10] netlink_rcv_skb+0x130/0x360 [ 807.774358][ T10] netlink_unicast+0x449/0x710 [ 807.774358][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.774358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.774358][ T10] ___sys_sendmsg+0xee/0x170 [ 807.774358][ T10] __sys_sendmsg+0xcd/0x170 [ 807.774358][ T10] do_syscall_64+0xc6/0x1e0 [ 807.774358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.774358][ T10] [ 807.776617][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 807.776617][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.776617][ T10] ipv6_find_idev+0x102/0x170 [ 807.776617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.776617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.776617][ T10] netlink_rcv_skb+0x130/0x360 [ 807.776617][ T10] netlink_unicast+0x449/0x710 [ 807.776617][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.776617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.776617][ T10] ___sys_sendmsg+0xee/0x170 [ 807.776617][ T10] __sys_sendmsg+0xcd/0x170 [ 807.776617][ T10] do_syscall_64+0xc6/0x1e0 [ 807.776617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.776617][ T10] [ 807.778315][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 807.778315][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.778315][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.778315][ T10] ipv6_find_idev+0x102/0x170 [ 807.778315][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.778315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.778315][ T10] netlink_rcv_skb+0x130/0x360 [ 807.778315][ T10] netlink_unicast+0x449/0x710 [ 807.778315][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.778315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.778315][ T10] ___sys_sendmsg+0xee/0x170 [ 807.778315][ T10] __sys_sendmsg+0xcd/0x170 [ 807.778315][ T10] do_syscall_64+0xc6/0x1e0 [ 807.778315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.778315][ T10] [ 807.780387][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 807.780678][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 807.780678][ T10] netdev_get_by_index+0x5e/0x80 [ 807.780678][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.780678][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.780678][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.780678][ T10] ipv6_add_addr+0x411/0x2000 [ 807.780678][ T10] inet6_addr_add+0x30e/0xa40 [ 807.780678][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.780678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.780678][ T10] netlink_rcv_skb+0x130/0x360 [ 807.780678][ T10] netlink_unicast+0x449/0x710 [ 807.780678][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.780678][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.780678][ T10] ___sys_sendmsg+0xee/0x170 [ 807.780678][ T10] __sys_sendmsg+0xcd/0x170 [ 807.780678][ T10] do_syscall_64+0xc6/0x1e0 [ 807.780678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.780678][ T10] [ 807.783021][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 807.783021][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.783021][ T10] ipv6_find_idev+0x102/0x170 [ 807.783021][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.783021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.783021][ T10] netlink_rcv_skb+0x130/0x360 [ 807.783021][ T10] netlink_unicast+0x449/0x710 [ 807.783021][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.783021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.783021][ T10] ___sys_sendmsg+0xee/0x170 [ 807.783021][ T10] __sys_sendmsg+0xcd/0x170 [ 807.783021][ T10] do_syscall_64+0xc6/0x1e0 [ 807.783021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.783021][ T10] [ 807.784945][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 807.784945][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.784945][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.784945][ T10] ipv6_find_idev+0x102/0x170 [ 807.784945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.784945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.784945][ T10] netlink_rcv_skb+0x130/0x360 [ 807.784945][ T10] netlink_unicast+0x449/0x710 [ 807.784945][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.784945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.784945][ T10] ___sys_sendmsg+0xee/0x170 [ 807.784945][ T10] __sys_sendmsg+0xcd/0x170 [ 807.784945][ T10] do_syscall_64+0xc6/0x1e0 [ 807.784945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.784945][ T10] [ 807.787100][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 807.787391][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 807.787391][ T10] netdev_get_by_index+0x5e/0x80 [ 807.787391][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.787391][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.787391][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.787391][ T10] ipv6_add_addr+0x411/0x2000 [ 807.787391][ T10] inet6_addr_add+0x30e/0xa40 [ 807.787391][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.787391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.787391][ T10] netlink_rcv_skb+0x130/0x360 [ 807.787391][ T10] netlink_unicast+0x449/0x710 [ 807.787391][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.787391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.787391][ T10] ___sys_sendmsg+0xee/0x170 [ 807.787391][ T10] __sys_sendmsg+0xcd/0x170 [ 807.787391][ T10] do_syscall_64+0xc6/0x1e0 [ 807.787391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.787391][ T10] [ 807.789652][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 807.789652][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.789652][ T10] ipv6_find_idev+0x102/0x170 [ 807.789652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.789652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.789652][ T10] netlink_rcv_skb+0x130/0x360 [ 807.789652][ T10] netlink_unicast+0x449/0x710 [ 807.789652][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.789652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.789652][ T10] ___sys_sendmsg+0xee/0x170 [ 807.789652][ T10] __sys_sendmsg+0xcd/0x170 [ 807.789652][ T10] do_syscall_64+0xc6/0x1e0 [ 807.789652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.789652][ T10] [ 807.791419][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 807.791419][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.791419][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.791419][ T10] ipv6_find_idev+0x102/0x170 [ 807.791419][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.791419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.791419][ T10] netlink_rcv_skb+0x130/0x360 [ 807.791419][ T10] netlink_unicast+0x449/0x710 [ 807.791419][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.791419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.791419][ T10] ___sys_sendmsg+0xee/0x170 [ 807.791419][ T10] __sys_sendmsg+0xcd/0x170 [ 807.791419][ T10] do_syscall_64+0xc6/0x1e0 [ 807.791419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.791419][ T10] [ 807.793413][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 807.793830][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 807.793830][ T10] netdev_get_by_index+0x5e/0x80 [ 807.793830][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.793830][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.793830][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.793830][ T10] ipv6_add_addr+0x411/0x2000 [ 807.793830][ T10] inet6_addr_add+0x30e/0xa40 [ 807.793830][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.793830][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.793830][ T10] netlink_rcv_skb+0x130/0x360 [ 807.793830][ T10] netlink_unicast+0x449/0x710 [ 807.793830][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.793830][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.793830][ T10] ___sys_sendmsg+0xee/0x170 [ 807.793830][ T10] __sys_sendmsg+0xcd/0x170 [ 807.793830][ T10] do_syscall_64+0xc6/0x1e0 [ 807.793830][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.793830][ T10] [ 807.796247][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 807.796247][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.796247][ T10] ipv6_find_idev+0x102/0x170 [ 807.796247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.796247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.796247][ T10] netlink_rcv_skb+0x130/0x360 [ 807.796247][ T10] netlink_unicast+0x449/0x710 [ 807.796247][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.796247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.796247][ T10] ___sys_sendmsg+0xee/0x170 [ 807.796247][ T10] __sys_sendmsg+0xcd/0x170 [ 807.796247][ T10] do_syscall_64+0xc6/0x1e0 [ 807.796247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.796247][ T10] [ 807.798068][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 807.798068][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.798068][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.798068][ T10] ipv6_find_idev+0x102/0x170 [ 807.798068][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.798068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.798068][ T10] netlink_rcv_skb+0x130/0x360 [ 807.798068][ T10] netlink_unicast+0x449/0x710 [ 807.798068][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.798068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.798068][ T10] ___sys_sendmsg+0xee/0x170 [ 807.798068][ T10] __sys_sendmsg+0xcd/0x170 [ 807.798068][ T10] do_syscall_64+0xc6/0x1e0 [ 807.798068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.798068][ T10] [ 807.800171][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 807.800458][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 807.800458][ T10] netdev_get_by_index+0x5e/0x80 [ 807.800458][ T10] fib6_nh_init+0x3d8/0x15b0 [ 807.800458][ T10] ip6_route_info_create+0xf18/0x17d0 [ 807.800458][ T10] addrconf_f6i_alloc+0x244/0x410 [ 807.800458][ T10] ipv6_add_addr+0x411/0x2000 [ 807.800458][ T10] inet6_addr_add+0x30e/0xa40 [ 807.800458][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 807.800458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.800458][ T10] netlink_rcv_skb+0x130/0x360 [ 807.800458][ T10] netlink_unicast+0x449/0x710 [ 807.800458][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.800458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.800458][ T10] ___sys_sendmsg+0xee/0x170 [ 807.800458][ T10] __sys_sendmsg+0xcd/0x170 [ 807.800458][ T10] do_syscall_64+0xc6/0x1e0 [ 807.800458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.800458][ T10] [ 807.803071][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 807.803071][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 807.803071][ T10] ipv6_find_idev+0x102/0x170 [ 807.803071][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.803071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.803071][ T10] netlink_rcv_skb+0x130/0x360 [ 807.803071][ T10] netlink_unicast+0x449/0x710 [ 807.803071][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.803071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.803071][ T10] ___sys_sendmsg+0xee/0x170 [ 807.803071][ T10] __sys_sendmsg+0xcd/0x170 [ 807.803071][ T10] do_syscall_64+0xc6/0x1e0 [ 807.803071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.803071][ T10] [ 807.804931][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 807.804931][ T10] neigh_parms_alloc+0x1e5/0x510 [ 807.804931][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 807.804931][ T10] ipv6_find_idev+0x102/0x170 [ 807.804931][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 807.804931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 807.804931][ T10] netlink_rcv_skb+0x130/0x360 [ 807.804931][ T10] netlink_unicast+0x449/0x710 [ 807.804931][ T10] netlink_sendmsg+0x723/0xbe0 [ 807.804931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 807.804931][ T10] ___sys_sendmsg+0xee/0x170 [ 807.804931][ T10] __sys_sendmsg+0xcd/0x170 [ 807.804931][ T10] do_syscall_64+0xc6/0x1e0 [ 807.804931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 807.804931][ T10] [ 817.899663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 817.900011][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 817.900011][ T10] netdev_get_by_index+0x5e/0x80 [ 817.900011][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.900011][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.900011][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.900011][ T10] ipv6_add_addr+0x411/0x2000 [ 817.900011][ T10] inet6_addr_add+0x30e/0xa40 [ 817.900011][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.900011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.900011][ T10] netlink_rcv_skb+0x130/0x360 [ 817.900011][ T10] netlink_unicast+0x449/0x710 [ 817.900011][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.900011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.900011][ T10] ___sys_sendmsg+0xee/0x170 [ 817.900011][ T10] __sys_sendmsg+0xcd/0x170 [ 817.900011][ T10] do_syscall_64+0xc6/0x1e0 [ 817.900011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.900011][ T10] [ 817.902237][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 817.902237][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.902237][ T10] ipv6_find_idev+0x102/0x170 [ 817.902237][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.902237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.902237][ T10] netlink_rcv_skb+0x130/0x360 [ 817.902237][ T10] netlink_unicast+0x449/0x710 [ 817.902237][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.902237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.902237][ T10] ___sys_sendmsg+0xee/0x170 [ 817.902237][ T10] __sys_sendmsg+0xcd/0x170 [ 817.902237][ T10] do_syscall_64+0xc6/0x1e0 [ 817.902237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.902237][ T10] [ 817.903937][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 817.903937][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.903937][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.903937][ T10] ipv6_find_idev+0x102/0x170 [ 817.903937][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.903937][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.903937][ T10] netlink_rcv_skb+0x130/0x360 [ 817.903937][ T10] netlink_unicast+0x449/0x710 [ 817.903937][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.903937][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.903937][ T10] ___sys_sendmsg+0xee/0x170 [ 817.903937][ T10] __sys_sendmsg+0xcd/0x170 [ 817.903937][ T10] do_syscall_64+0xc6/0x1e0 [ 817.903937][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.903937][ T10] [ 817.905821][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 817.906136][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 817.906136][ T10] netdev_get_by_index+0x5e/0x80 [ 817.906136][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.906136][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.906136][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.906136][ T10] ipv6_add_addr+0x411/0x2000 [ 817.906136][ T10] inet6_addr_add+0x30e/0xa40 [ 817.906136][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.906136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.906136][ T10] netlink_rcv_skb+0x130/0x360 [ 817.906136][ T10] netlink_unicast+0x449/0x710 [ 817.906136][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.906136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.906136][ T10] ___sys_sendmsg+0xee/0x170 [ 817.906136][ T10] __sys_sendmsg+0xcd/0x170 [ 817.906136][ T10] do_syscall_64+0xc6/0x1e0 [ 817.906136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.906136][ T10] [ 817.908317][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 817.908317][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.908317][ T10] ipv6_find_idev+0x102/0x170 [ 817.908317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.908317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.908317][ T10] netlink_rcv_skb+0x130/0x360 [ 817.908317][ T10] netlink_unicast+0x449/0x710 [ 817.908317][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.908317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.908317][ T10] ___sys_sendmsg+0xee/0x170 [ 817.908317][ T10] __sys_sendmsg+0xcd/0x170 [ 817.908317][ T10] do_syscall_64+0xc6/0x1e0 [ 817.908317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.908317][ T10] [ 817.910012][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 817.910012][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.910012][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.910012][ T10] ipv6_find_idev+0x102/0x170 [ 817.910012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.910012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.910012][ T10] netlink_rcv_skb+0x130/0x360 [ 817.910012][ T10] netlink_unicast+0x449/0x710 [ 817.910012][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.910012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.910012][ T10] ___sys_sendmsg+0xee/0x170 [ 817.910012][ T10] __sys_sendmsg+0xcd/0x170 [ 817.910012][ T10] do_syscall_64+0xc6/0x1e0 [ 817.910012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.910012][ T10] [ 817.911926][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 817.912217][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 817.912217][ T10] netdev_get_by_index+0x5e/0x80 [ 817.912217][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.912217][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.912217][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.912217][ T10] ipv6_add_addr+0x411/0x2000 [ 817.912217][ T10] inet6_addr_add+0x30e/0xa40 [ 817.912217][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.912217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.912217][ T10] netlink_rcv_skb+0x130/0x360 [ 817.912217][ T10] netlink_unicast+0x449/0x710 [ 817.912217][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.912217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.912217][ T10] ___sys_sendmsg+0xee/0x170 [ 817.912217][ T10] __sys_sendmsg+0xcd/0x170 [ 817.912217][ T10] do_syscall_64+0xc6/0x1e0 [ 817.912217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.912217][ T10] [ 817.914462][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 817.914462][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.914462][ T10] ipv6_find_idev+0x102/0x170 [ 817.914462][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.914462][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.914462][ T10] netlink_rcv_skb+0x130/0x360 [ 817.914462][ T10] netlink_unicast+0x449/0x710 [ 817.914462][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.914462][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.914462][ T10] ___sys_sendmsg+0xee/0x170 [ 817.914462][ T10] __sys_sendmsg+0xcd/0x170 [ 817.914462][ T10] do_syscall_64+0xc6/0x1e0 [ 817.914462][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.914462][ T10] [ 817.916154][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 817.916154][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.916154][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.916154][ T10] ipv6_find_idev+0x102/0x170 [ 817.916154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.916154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.916154][ T10] netlink_rcv_skb+0x130/0x360 [ 817.916154][ T10] netlink_unicast+0x449/0x710 [ 817.916154][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.916154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.916154][ T10] ___sys_sendmsg+0xee/0x170 [ 817.916154][ T10] __sys_sendmsg+0xcd/0x170 [ 817.916154][ T10] do_syscall_64+0xc6/0x1e0 [ 817.916154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.916154][ T10] [ 817.918023][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 817.918451][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 817.918451][ T10] netdev_get_by_index+0x5e/0x80 [ 817.918451][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.918451][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.918451][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.918451][ T10] ipv6_add_addr+0x411/0x2000 [ 817.918451][ T10] inet6_addr_add+0x30e/0xa40 [ 817.918451][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.918451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.918451][ T10] netlink_rcv_skb+0x130/0x360 [ 817.918451][ T10] netlink_unicast+0x449/0x710 [ 817.918451][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.918451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.918451][ T10] ___sys_sendmsg+0xee/0x170 [ 817.918451][ T10] __sys_sendmsg+0xcd/0x170 [ 817.918451][ T10] do_syscall_64+0xc6/0x1e0 [ 817.918451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.918451][ T10] [ 817.920643][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 817.920643][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.920643][ T10] ipv6_find_idev+0x102/0x170 [ 817.920643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.920643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.920643][ T10] netlink_rcv_skb+0x130/0x360 [ 817.920643][ T10] netlink_unicast+0x449/0x710 [ 817.920643][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.920643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.920643][ T10] ___sys_sendmsg+0xee/0x170 [ 817.920643][ T10] __sys_sendmsg+0xcd/0x170 [ 817.920643][ T10] do_syscall_64+0xc6/0x1e0 [ 817.920643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.920643][ T10] [ 817.922325][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 817.922325][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.922325][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.922325][ T10] ipv6_find_idev+0x102/0x170 [ 817.922325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.922325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.922325][ T10] netlink_rcv_skb+0x130/0x360 [ 817.922325][ T10] netlink_unicast+0x449/0x710 [ 817.922325][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.922325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.922325][ T10] ___sys_sendmsg+0xee/0x170 [ 817.922325][ T10] __sys_sendmsg+0xcd/0x170 [ 817.922325][ T10] do_syscall_64+0xc6/0x1e0 [ 817.922325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.922325][ T10] [ 817.924850][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 817.925601][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 817.925601][ T10] netdev_get_by_index+0x5e/0x80 [ 817.925601][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.925601][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.925601][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.925601][ T10] ipv6_add_addr+0x411/0x2000 [ 817.925601][ T10] inet6_addr_add+0x30e/0xa40 [ 817.925601][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.925601][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.925601][ T10] netlink_rcv_skb+0x130/0x360 [ 817.925601][ T10] netlink_unicast+0x449/0x710 [ 817.925601][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.925601][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.925601][ T10] ___sys_sendmsg+0xee/0x170 [ 817.925601][ T10] __sys_sendmsg+0xcd/0x170 [ 817.925601][ T10] do_syscall_64+0xc6/0x1e0 [ 817.925601][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.925601][ T10] [ 817.927801][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 817.927801][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.927801][ T10] ipv6_find_idev+0x102/0x170 [ 817.927801][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.927801][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.927801][ T10] netlink_rcv_skb+0x130/0x360 [ 817.927801][ T10] netlink_unicast+0x449/0x710 [ 817.927801][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.927801][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.927801][ T10] ___sys_sendmsg+0xee/0x170 [ 817.927801][ T10] __sys_sendmsg+0xcd/0x170 [ 817.927801][ T10] do_syscall_64+0xc6/0x1e0 [ 817.927801][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.927801][ T10] [ 817.929485][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 817.929485][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.929485][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.929485][ T10] ipv6_find_idev+0x102/0x170 [ 817.929485][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.929485][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.929485][ T10] netlink_rcv_skb+0x130/0x360 [ 817.929485][ T10] netlink_unicast+0x449/0x710 [ 817.929485][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.929485][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.929485][ T10] ___sys_sendmsg+0xee/0x170 [ 817.929485][ T10] __sys_sendmsg+0xcd/0x170 [ 817.929485][ T10] do_syscall_64+0xc6/0x1e0 [ 817.929485][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.929485][ T10] [ 817.931342][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 817.931631][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 817.931631][ T10] netdev_get_by_index+0x5e/0x80 [ 817.931631][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.931631][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.931631][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.931631][ T10] ipv6_add_addr+0x411/0x2000 [ 817.931631][ T10] inet6_addr_add+0x30e/0xa40 [ 817.931631][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.931631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.931631][ T10] netlink_rcv_skb+0x130/0x360 [ 817.931631][ T10] netlink_unicast+0x449/0x710 [ 817.931631][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.931631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.931631][ T10] ___sys_sendmsg+0xee/0x170 [ 817.931631][ T10] __sys_sendmsg+0xcd/0x170 [ 817.931631][ T10] do_syscall_64+0xc6/0x1e0 [ 817.931631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.931631][ T10] [ 817.933911][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 817.933911][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.933911][ T10] ipv6_find_idev+0x102/0x170 [ 817.933911][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.933911][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.933911][ T10] netlink_rcv_skb+0x130/0x360 [ 817.933911][ T10] netlink_unicast+0x449/0x710 [ 817.933911][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.933911][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.933911][ T10] ___sys_sendmsg+0xee/0x170 [ 817.933911][ T10] __sys_sendmsg+0xcd/0x170 [ 817.933911][ T10] do_syscall_64+0xc6/0x1e0 [ 817.933911][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.933911][ T10] [ 817.935761][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 817.935761][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.935761][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.935761][ T10] ipv6_find_idev+0x102/0x170 [ 817.935761][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.935761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.935761][ T10] netlink_rcv_skb+0x130/0x360 [ 817.935761][ T10] netlink_unicast+0x449/0x710 [ 817.935761][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.935761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.935761][ T10] ___sys_sendmsg+0xee/0x170 [ 817.935761][ T10] __sys_sendmsg+0xcd/0x170 [ 817.935761][ T10] do_syscall_64+0xc6/0x1e0 [ 817.935761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.935761][ T10] [ 817.937775][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 817.938065][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 817.938065][ T10] netdev_get_by_index+0x5e/0x80 [ 817.938065][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.938065][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.938065][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.938065][ T10] ipv6_add_addr+0x411/0x2000 [ 817.938065][ T10] inet6_addr_add+0x30e/0xa40 [ 817.938065][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.938065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.938065][ T10] netlink_rcv_skb+0x130/0x360 [ 817.938065][ T10] netlink_unicast+0x449/0x710 [ 817.938065][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.938065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.938065][ T10] ___sys_sendmsg+0xee/0x170 [ 817.938065][ T10] __sys_sendmsg+0xcd/0x170 [ 817.938065][ T10] do_syscall_64+0xc6/0x1e0 [ 817.938065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.938065][ T10] [ 817.940496][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 817.940496][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.940496][ T10] ipv6_find_idev+0x102/0x170 [ 817.940496][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.940496][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.940496][ T10] netlink_rcv_skb+0x130/0x360 [ 817.940496][ T10] netlink_unicast+0x449/0x710 [ 817.940496][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.940496][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.940496][ T10] ___sys_sendmsg+0xee/0x170 [ 817.940496][ T10] __sys_sendmsg+0xcd/0x170 [ 817.940496][ T10] do_syscall_64+0xc6/0x1e0 [ 817.940496][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.940496][ T10] [ 817.942417][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 817.942417][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.942417][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.942417][ T10] ipv6_find_idev+0x102/0x170 [ 817.942417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.942417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.942417][ T10] netlink_rcv_skb+0x130/0x360 [ 817.942417][ T10] netlink_unicast+0x449/0x710 [ 817.942417][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.942417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.942417][ T10] ___sys_sendmsg+0xee/0x170 [ 817.942417][ T10] __sys_sendmsg+0xcd/0x170 [ 817.942417][ T10] do_syscall_64+0xc6/0x1e0 [ 817.942417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.942417][ T10] [ 817.944421][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 817.944759][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 817.944759][ T10] netdev_get_by_index+0x5e/0x80 [ 817.944759][ T10] fib6_nh_init+0x3d8/0x15b0 [ 817.944759][ T10] ip6_route_info_create+0xf18/0x17d0 [ 817.944759][ T10] addrconf_f6i_alloc+0x244/0x410 [ 817.944759][ T10] ipv6_add_addr+0x411/0x2000 [ 817.944759][ T10] inet6_addr_add+0x30e/0xa40 [ 817.944759][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 817.944759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.944759][ T10] netlink_rcv_skb+0x130/0x360 [ 817.944759][ T10] netlink_unicast+0x449/0x710 [ 817.944759][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.944759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.944759][ T10] ___sys_sendmsg+0xee/0x170 [ 817.944759][ T10] __sys_sendmsg+0xcd/0x170 [ 817.944759][ T10] do_syscall_64+0xc6/0x1e0 [ 817.944759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.944759][ T10] [ 817.947141][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 817.947141][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 817.947141][ T10] ipv6_find_idev+0x102/0x170 [ 817.947141][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.947141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.947141][ T10] netlink_rcv_skb+0x130/0x360 [ 817.947141][ T10] netlink_unicast+0x449/0x710 [ 817.947141][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.947141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.947141][ T10] ___sys_sendmsg+0xee/0x170 [ 817.947141][ T10] __sys_sendmsg+0xcd/0x170 [ 817.947141][ T10] do_syscall_64+0xc6/0x1e0 [ 817.947141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.947141][ T10] [ 817.949006][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 817.949006][ T10] neigh_parms_alloc+0x1e5/0x510 [ 817.949006][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 817.949006][ T10] ipv6_find_idev+0x102/0x170 [ 817.949006][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 817.949006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 817.949006][ T10] netlink_rcv_skb+0x130/0x360 [ 817.949006][ T10] netlink_unicast+0x449/0x710 [ 817.949006][ T10] netlink_sendmsg+0x723/0xbe0 [ 817.949006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 817.949006][ T10] ___sys_sendmsg+0xee/0x170 [ 817.949006][ T10] __sys_sendmsg+0xcd/0x170 [ 817.949006][ T10] do_syscall_64+0xc6/0x1e0 [ 817.949006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 817.949006][ T10] [ 828.075750][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 828.076123][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 828.076123][ T10] netdev_get_by_index+0x5e/0x80 [ 828.076123][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.076123][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.076123][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.076123][ T10] ipv6_add_addr+0x411/0x2000 [ 828.076123][ T10] inet6_addr_add+0x30e/0xa40 [ 828.076123][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.076123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.076123][ T10] netlink_rcv_skb+0x130/0x360 [ 828.076123][ T10] netlink_unicast+0x449/0x710 [ 828.076123][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.076123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.076123][ T10] ___sys_sendmsg+0xee/0x170 [ 828.076123][ T10] __sys_sendmsg+0xcd/0x170 [ 828.076123][ T10] do_syscall_64+0xc6/0x1e0 [ 828.076123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.076123][ T10] [ 828.078366][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 828.078366][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.078366][ T10] ipv6_find_idev+0x102/0x170 [ 828.078366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.078366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.078366][ T10] netlink_rcv_skb+0x130/0x360 [ 828.078366][ T10] netlink_unicast+0x449/0x710 [ 828.078366][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.078366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.078366][ T10] ___sys_sendmsg+0xee/0x170 [ 828.078366][ T10] __sys_sendmsg+0xcd/0x170 [ 828.078366][ T10] do_syscall_64+0xc6/0x1e0 [ 828.078366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.078366][ T10] [ 828.080070][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 828.080070][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.080070][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.080070][ T10] ipv6_find_idev+0x102/0x170 [ 828.080070][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.080070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.080070][ T10] netlink_rcv_skb+0x130/0x360 [ 828.080070][ T10] netlink_unicast+0x449/0x710 [ 828.080070][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.080070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.080070][ T10] ___sys_sendmsg+0xee/0x170 [ 828.080070][ T10] __sys_sendmsg+0xcd/0x170 [ 828.080070][ T10] do_syscall_64+0xc6/0x1e0 [ 828.080070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.080070][ T10] [ 828.081983][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 828.082275][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 828.082275][ T10] netdev_get_by_index+0x5e/0x80 [ 828.082275][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.082275][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.082275][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.082275][ T10] ipv6_add_addr+0x411/0x2000 [ 828.082275][ T10] inet6_addr_add+0x30e/0xa40 [ 828.082275][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.082275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.082275][ T10] netlink_rcv_skb+0x130/0x360 [ 828.082275][ T10] netlink_unicast+0x449/0x710 [ 828.082275][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.082275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.082275][ T10] ___sys_sendmsg+0xee/0x170 [ 828.082275][ T10] __sys_sendmsg+0xcd/0x170 [ 828.082275][ T10] do_syscall_64+0xc6/0x1e0 [ 828.082275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.082275][ T10] [ 828.084460][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 828.084460][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.084460][ T10] ipv6_find_idev+0x102/0x170 [ 828.084460][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.084460][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.084460][ T10] netlink_rcv_skb+0x130/0x360 [ 828.084460][ T10] netlink_unicast+0x449/0x710 [ 828.084460][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.084460][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.084460][ T10] ___sys_sendmsg+0xee/0x170 [ 828.084460][ T10] __sys_sendmsg+0xcd/0x170 [ 828.084460][ T10] do_syscall_64+0xc6/0x1e0 [ 828.084460][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.084460][ T10] [ 828.086153][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 828.086153][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.086153][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.086153][ T10] ipv6_find_idev+0x102/0x170 [ 828.086153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.086153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.086153][ T10] netlink_rcv_skb+0x130/0x360 [ 828.086153][ T10] netlink_unicast+0x449/0x710 [ 828.086153][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.086153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.086153][ T10] ___sys_sendmsg+0xee/0x170 [ 828.086153][ T10] __sys_sendmsg+0xcd/0x170 [ 828.086153][ T10] do_syscall_64+0xc6/0x1e0 [ 828.086153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.086153][ T10] [ 828.087975][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 828.088264][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 828.088264][ T10] netdev_get_by_index+0x5e/0x80 [ 828.088264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.088264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.088264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.088264][ T10] ipv6_add_addr+0x411/0x2000 [ 828.088264][ T10] inet6_addr_add+0x30e/0xa40 [ 828.088264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.088264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.088264][ T10] netlink_rcv_skb+0x130/0x360 [ 828.088264][ T10] netlink_unicast+0x449/0x710 [ 828.088264][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.088264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.088264][ T10] ___sys_sendmsg+0xee/0x170 [ 828.088264][ T10] __sys_sendmsg+0xcd/0x170 [ 828.088264][ T10] do_syscall_64+0xc6/0x1e0 [ 828.088264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.088264][ T10] [ 828.090493][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 828.090493][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.090493][ T10] ipv6_find_idev+0x102/0x170 [ 828.090493][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.090493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.090493][ T10] netlink_rcv_skb+0x130/0x360 [ 828.090493][ T10] netlink_unicast+0x449/0x710 [ 828.090493][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.090493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.090493][ T10] ___sys_sendmsg+0xee/0x170 [ 828.090493][ T10] __sys_sendmsg+0xcd/0x170 [ 828.090493][ T10] do_syscall_64+0xc6/0x1e0 [ 828.090493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.090493][ T10] [ 828.092433][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 828.092433][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.092433][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.092433][ T10] ipv6_find_idev+0x102/0x170 [ 828.092433][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.092433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.092433][ T10] netlink_rcv_skb+0x130/0x360 [ 828.092433][ T10] netlink_unicast+0x449/0x710 [ 828.092433][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.092433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.092433][ T10] ___sys_sendmsg+0xee/0x170 [ 828.092433][ T10] __sys_sendmsg+0xcd/0x170 [ 828.092433][ T10] do_syscall_64+0xc6/0x1e0 [ 828.092433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.092433][ T10] [ 828.094385][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 828.094672][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 828.094672][ T10] netdev_get_by_index+0x5e/0x80 [ 828.094672][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.094672][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.094672][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.094672][ T10] ipv6_add_addr+0x411/0x2000 [ 828.094672][ T10] inet6_addr_add+0x30e/0xa40 [ 828.094672][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.094672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.094672][ T10] netlink_rcv_skb+0x130/0x360 [ 828.094672][ T10] netlink_unicast+0x449/0x710 [ 828.094672][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.094672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.094672][ T10] ___sys_sendmsg+0xee/0x170 [ 828.094672][ T10] __sys_sendmsg+0xcd/0x170 [ 828.094672][ T10] do_syscall_64+0xc6/0x1e0 [ 828.094672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.094672][ T10] [ 828.096893][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 828.096893][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.096893][ T10] ipv6_find_idev+0x102/0x170 [ 828.096893][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.096893][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.096893][ T10] netlink_rcv_skb+0x130/0x360 [ 828.096893][ T10] netlink_unicast+0x449/0x710 [ 828.096893][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.096893][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.096893][ T10] ___sys_sendmsg+0xee/0x170 [ 828.096893][ T10] __sys_sendmsg+0xcd/0x170 [ 828.096893][ T10] do_syscall_64+0xc6/0x1e0 [ 828.096893][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.096893][ T10] [ 828.098687][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 828.098687][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.098687][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.098687][ T10] ipv6_find_idev+0x102/0x170 [ 828.098687][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.098687][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.098687][ T10] netlink_rcv_skb+0x130/0x360 [ 828.098687][ T10] netlink_unicast+0x449/0x710 [ 828.098687][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.098687][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.098687][ T10] ___sys_sendmsg+0xee/0x170 [ 828.098687][ T10] __sys_sendmsg+0xcd/0x170 [ 828.098687][ T10] do_syscall_64+0xc6/0x1e0 [ 828.098687][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.098687][ T10] [ 828.100659][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 828.101006][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 828.101006][ T10] netdev_get_by_index+0x5e/0x80 [ 828.101006][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.101006][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.101006][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.101006][ T10] ipv6_add_addr+0x411/0x2000 [ 828.101006][ T10] inet6_addr_add+0x30e/0xa40 [ 828.101006][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.101006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.101006][ T10] netlink_rcv_skb+0x130/0x360 [ 828.101006][ T10] netlink_unicast+0x449/0x710 [ 828.101006][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.101006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.101006][ T10] ___sys_sendmsg+0xee/0x170 [ 828.101006][ T10] __sys_sendmsg+0xcd/0x170 [ 828.101006][ T10] do_syscall_64+0xc6/0x1e0 [ 828.101006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.101006][ T10] [ 828.103348][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 828.103348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.103348][ T10] ipv6_find_idev+0x102/0x170 [ 828.103348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.103348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.103348][ T10] netlink_rcv_skb+0x130/0x360 [ 828.103348][ T10] netlink_unicast+0x449/0x710 [ 828.103348][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.103348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.103348][ T10] ___sys_sendmsg+0xee/0x170 [ 828.103348][ T10] __sys_sendmsg+0xcd/0x170 [ 828.103348][ T10] do_syscall_64+0xc6/0x1e0 [ 828.103348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.103348][ T10] [ 828.105158][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 828.105158][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.105158][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.105158][ T10] ipv6_find_idev+0x102/0x170 [ 828.105158][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.105158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.105158][ T10] netlink_rcv_skb+0x130/0x360 [ 828.105158][ T10] netlink_unicast+0x449/0x710 [ 828.105158][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.105158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.105158][ T10] ___sys_sendmsg+0xee/0x170 [ 828.105158][ T10] __sys_sendmsg+0xcd/0x170 [ 828.105158][ T10] do_syscall_64+0xc6/0x1e0 [ 828.105158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.105158][ T10] [ 828.107253][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 828.107535][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 828.107535][ T10] netdev_get_by_index+0x5e/0x80 [ 828.107535][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.107535][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.107535][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.107535][ T10] ipv6_add_addr+0x411/0x2000 [ 828.107535][ T10] inet6_addr_add+0x30e/0xa40 [ 828.107535][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.107535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.107535][ T10] netlink_rcv_skb+0x130/0x360 [ 828.107535][ T10] netlink_unicast+0x449/0x710 [ 828.107535][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.107535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.107535][ T10] ___sys_sendmsg+0xee/0x170 [ 828.107535][ T10] __sys_sendmsg+0xcd/0x170 [ 828.107535][ T10] do_syscall_64+0xc6/0x1e0 [ 828.107535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.107535][ T10] [ 828.109875][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 828.109875][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.109875][ T10] ipv6_find_idev+0x102/0x170 [ 828.109875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.109875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.109875][ T10] netlink_rcv_skb+0x130/0x360 [ 828.109875][ T10] netlink_unicast+0x449/0x710 [ 828.109875][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.109875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.109875][ T10] ___sys_sendmsg+0xee/0x170 [ 828.109875][ T10] __sys_sendmsg+0xcd/0x170 [ 828.109875][ T10] do_syscall_64+0xc6/0x1e0 [ 828.109875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.109875][ T10] [ 828.111859][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 828.111859][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.111859][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.111859][ T10] ipv6_find_idev+0x102/0x170 [ 828.111859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.111859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.111859][ T10] netlink_rcv_skb+0x130/0x360 [ 828.111859][ T10] netlink_unicast+0x449/0x710 [ 828.111859][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.111859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.111859][ T10] ___sys_sendmsg+0xee/0x170 [ 828.111859][ T10] __sys_sendmsg+0xcd/0x170 [ 828.111859][ T10] do_syscall_64+0xc6/0x1e0 [ 828.111859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.111859][ T10] [ 828.113894][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 828.114183][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 828.114183][ T10] netdev_get_by_index+0x5e/0x80 [ 828.114183][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.114183][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.114183][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.114183][ T10] ipv6_add_addr+0x411/0x2000 [ 828.114183][ T10] inet6_addr_add+0x30e/0xa40 [ 828.114183][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.114183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.114183][ T10] netlink_rcv_skb+0x130/0x360 [ 828.114183][ T10] netlink_unicast+0x449/0x710 [ 828.114183][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.114183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.114183][ T10] ___sys_sendmsg+0xee/0x170 [ 828.114183][ T10] __sys_sendmsg+0xcd/0x170 [ 828.114183][ T10] do_syscall_64+0xc6/0x1e0 [ 828.114183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.114183][ T10] [ 828.116628][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 828.116628][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.116628][ T10] ipv6_find_idev+0x102/0x170 [ 828.116628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.116628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.116628][ T10] netlink_rcv_skb+0x130/0x360 [ 828.116628][ T10] netlink_unicast+0x449/0x710 [ 828.116628][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.116628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.116628][ T10] ___sys_sendmsg+0xee/0x170 [ 828.116628][ T10] __sys_sendmsg+0xcd/0x170 [ 828.116628][ T10] do_syscall_64+0xc6/0x1e0 [ 828.116628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.116628][ T10] [ 828.118672][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 828.118672][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.118672][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.118672][ T10] ipv6_find_idev+0x102/0x170 [ 828.118672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.118672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.118672][ T10] netlink_rcv_skb+0x130/0x360 [ 828.118672][ T10] netlink_unicast+0x449/0x710 [ 828.118672][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.118672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.118672][ T10] ___sys_sendmsg+0xee/0x170 [ 828.118672][ T10] __sys_sendmsg+0xcd/0x170 [ 828.118672][ T10] do_syscall_64+0xc6/0x1e0 [ 828.118672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.118672][ T10] [ 828.120789][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 828.121085][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 828.121085][ T10] netdev_get_by_index+0x5e/0x80 [ 828.121085][ T10] fib6_nh_init+0x3d8/0x15b0 [ 828.121085][ T10] ip6_route_info_create+0xf18/0x17d0 [ 828.121085][ T10] addrconf_f6i_alloc+0x244/0x410 [ 828.121085][ T10] ipv6_add_addr+0x411/0x2000 [ 828.121085][ T10] inet6_addr_add+0x30e/0xa40 [ 828.121085][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 828.121085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.121085][ T10] netlink_rcv_skb+0x130/0x360 [ 828.121085][ T10] netlink_unicast+0x449/0x710 [ 828.121085][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.121085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.121085][ T10] ___sys_sendmsg+0xee/0x170 [ 828.121085][ T10] __sys_sendmsg+0xcd/0x170 [ 828.121085][ T10] do_syscall_64+0xc6/0x1e0 [ 828.121085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.121085][ T10] [ 828.123341][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 828.123341][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 828.123341][ T10] ipv6_find_idev+0x102/0x170 [ 828.123341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.123341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.123341][ T10] netlink_rcv_skb+0x130/0x360 [ 828.123341][ T10] netlink_unicast+0x449/0x710 [ 828.123341][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.123341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.123341][ T10] ___sys_sendmsg+0xee/0x170 [ 828.123341][ T10] __sys_sendmsg+0xcd/0x170 [ 828.123341][ T10] do_syscall_64+0xc6/0x1e0 [ 828.123341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.123341][ T10] [ 828.125049][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 828.125049][ T10] neigh_parms_alloc+0x1e5/0x510 [ 828.125049][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 828.125049][ T10] ipv6_find_idev+0x102/0x170 [ 828.125049][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 828.125049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 828.125049][ T10] netlink_rcv_skb+0x130/0x360 [ 828.125049][ T10] netlink_unicast+0x449/0x710 [ 828.125049][ T10] netlink_sendmsg+0x723/0xbe0 [ 828.125049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 828.125049][ T10] ___sys_sendmsg+0xee/0x170 [ 828.125049][ T10] __sys_sendmsg+0xcd/0x170 [ 828.125049][ T10] do_syscall_64+0xc6/0x1e0 [ 828.125049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 828.125049][ T10] [ 838.268663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 838.269103][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 838.269103][ T10] netdev_get_by_index+0x5e/0x80 [ 838.269103][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.269103][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.269103][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.269103][ T10] ipv6_add_addr+0x411/0x2000 [ 838.269103][ T10] inet6_addr_add+0x30e/0xa40 [ 838.269103][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.269103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.269103][ T10] netlink_rcv_skb+0x130/0x360 [ 838.269103][ T10] netlink_unicast+0x449/0x710 [ 838.269103][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.269103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.269103][ T10] ___sys_sendmsg+0xee/0x170 [ 838.269103][ T10] __sys_sendmsg+0xcd/0x170 [ 838.269103][ T10] do_syscall_64+0xc6/0x1e0 [ 838.269103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.269103][ T10] [ 838.271173][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 838.271173][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.271173][ T10] ipv6_find_idev+0x102/0x170 [ 838.271173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.271173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.271173][ T10] netlink_rcv_skb+0x130/0x360 [ 838.271173][ T10] netlink_unicast+0x449/0x710 [ 838.271173][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.271173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.271173][ T10] ___sys_sendmsg+0xee/0x170 [ 838.271173][ T10] __sys_sendmsg+0xcd/0x170 [ 838.271173][ T10] do_syscall_64+0xc6/0x1e0 [ 838.271173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.271173][ T10] [ 838.272743][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 838.272743][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.272743][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.272743][ T10] ipv6_find_idev+0x102/0x170 [ 838.272743][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.272743][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.272743][ T10] netlink_rcv_skb+0x130/0x360 [ 838.272743][ T10] netlink_unicast+0x449/0x710 [ 838.272743][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.272743][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.272743][ T10] ___sys_sendmsg+0xee/0x170 [ 838.272743][ T10] __sys_sendmsg+0xcd/0x170 [ 838.272743][ T10] do_syscall_64+0xc6/0x1e0 [ 838.272743][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.272743][ T10] [ 838.274462][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 838.274769][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 838.274769][ T10] netdev_get_by_index+0x5e/0x80 [ 838.274769][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.274769][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.274769][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.274769][ T10] ipv6_add_addr+0x411/0x2000 [ 838.274769][ T10] inet6_addr_add+0x30e/0xa40 [ 838.274769][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.274769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.274769][ T10] netlink_rcv_skb+0x130/0x360 [ 838.274769][ T10] netlink_unicast+0x449/0x710 [ 838.274769][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.274769][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.274769][ T10] ___sys_sendmsg+0xee/0x170 [ 838.274769][ T10] __sys_sendmsg+0xcd/0x170 [ 838.274769][ T10] do_syscall_64+0xc6/0x1e0 [ 838.274769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.274769][ T10] [ 838.276807][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 838.276807][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.276807][ T10] ipv6_find_idev+0x102/0x170 [ 838.276807][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.276807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.276807][ T10] netlink_rcv_skb+0x130/0x360 [ 838.276807][ T10] netlink_unicast+0x449/0x710 [ 838.276807][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.276807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.276807][ T10] ___sys_sendmsg+0xee/0x170 [ 838.276807][ T10] __sys_sendmsg+0xcd/0x170 [ 838.276807][ T10] do_syscall_64+0xc6/0x1e0 [ 838.276807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.276807][ T10] [ 838.278361][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 838.278361][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.278361][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.278361][ T10] ipv6_find_idev+0x102/0x170 [ 838.278361][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.278361][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.278361][ T10] netlink_rcv_skb+0x130/0x360 [ 838.278361][ T10] netlink_unicast+0x449/0x710 [ 838.278361][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.278361][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.278361][ T10] ___sys_sendmsg+0xee/0x170 [ 838.278361][ T10] __sys_sendmsg+0xcd/0x170 [ 838.278361][ T10] do_syscall_64+0xc6/0x1e0 [ 838.278361][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.278361][ T10] [ 838.280090][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 838.280372][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 838.280372][ T10] netdev_get_by_index+0x5e/0x80 [ 838.280372][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.280372][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.280372][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.280372][ T10] ipv6_add_addr+0x411/0x2000 [ 838.280372][ T10] inet6_addr_add+0x30e/0xa40 [ 838.280372][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.280372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.280372][ T10] netlink_rcv_skb+0x130/0x360 [ 838.280372][ T10] netlink_unicast+0x449/0x710 [ 838.280372][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.280372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.280372][ T10] ___sys_sendmsg+0xee/0x170 [ 838.280372][ T10] __sys_sendmsg+0xcd/0x170 [ 838.280372][ T10] do_syscall_64+0xc6/0x1e0 [ 838.280372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.280372][ T10] [ 838.282381][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 838.282381][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.282381][ T10] ipv6_find_idev+0x102/0x170 [ 838.282381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.282381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.282381][ T10] netlink_rcv_skb+0x130/0x360 [ 838.282381][ T10] netlink_unicast+0x449/0x710 [ 838.282381][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.282381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.282381][ T10] ___sys_sendmsg+0xee/0x170 [ 838.282381][ T10] __sys_sendmsg+0xcd/0x170 [ 838.282381][ T10] do_syscall_64+0xc6/0x1e0 [ 838.282381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.282381][ T10] [ 838.283924][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 838.283924][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.283924][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.283924][ T10] ipv6_find_idev+0x102/0x170 [ 838.283924][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.283924][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.283924][ T10] netlink_rcv_skb+0x130/0x360 [ 838.283924][ T10] netlink_unicast+0x449/0x710 [ 838.283924][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.283924][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.283924][ T10] ___sys_sendmsg+0xee/0x170 [ 838.283924][ T10] __sys_sendmsg+0xcd/0x170 [ 838.283924][ T10] do_syscall_64+0xc6/0x1e0 [ 838.283924][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.283924][ T10] [ 838.285631][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 838.285927][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 838.285927][ T10] netdev_get_by_index+0x5e/0x80 [ 838.285927][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.285927][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.285927][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.285927][ T10] ipv6_add_addr+0x411/0x2000 [ 838.285927][ T10] inet6_addr_add+0x30e/0xa40 [ 838.285927][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.285927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.285927][ T10] netlink_rcv_skb+0x130/0x360 [ 838.285927][ T10] netlink_unicast+0x449/0x710 [ 838.285927][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.285927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.285927][ T10] ___sys_sendmsg+0xee/0x170 [ 838.285927][ T10] __sys_sendmsg+0xcd/0x170 [ 838.285927][ T10] do_syscall_64+0xc6/0x1e0 [ 838.285927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.285927][ T10] [ 838.287941][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 838.287941][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.287941][ T10] ipv6_find_idev+0x102/0x170 [ 838.287941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.287941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.287941][ T10] netlink_rcv_skb+0x130/0x360 [ 838.287941][ T10] netlink_unicast+0x449/0x710 [ 838.287941][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.287941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.287941][ T10] ___sys_sendmsg+0xee/0x170 [ 838.287941][ T10] __sys_sendmsg+0xcd/0x170 [ 838.287941][ T10] do_syscall_64+0xc6/0x1e0 [ 838.287941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.287941][ T10] [ 838.289493][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 838.289493][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.289493][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.289493][ T10] ipv6_find_idev+0x102/0x170 [ 838.289493][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.289493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.289493][ T10] netlink_rcv_skb+0x130/0x360 [ 838.289493][ T10] netlink_unicast+0x449/0x710 [ 838.289493][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.289493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.289493][ T10] ___sys_sendmsg+0xee/0x170 [ 838.289493][ T10] __sys_sendmsg+0xcd/0x170 [ 838.289493][ T10] do_syscall_64+0xc6/0x1e0 [ 838.289493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.289493][ T10] [ 838.291218][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 838.291495][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 838.291495][ T10] netdev_get_by_index+0x5e/0x80 [ 838.291495][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.291495][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.291495][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.291495][ T10] ipv6_add_addr+0x411/0x2000 [ 838.291495][ T10] inet6_addr_add+0x30e/0xa40 [ 838.291495][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.291495][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.291495][ T10] netlink_rcv_skb+0x130/0x360 [ 838.291495][ T10] netlink_unicast+0x449/0x710 [ 838.291495][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.291495][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.291495][ T10] ___sys_sendmsg+0xee/0x170 [ 838.291495][ T10] __sys_sendmsg+0xcd/0x170 [ 838.291495][ T10] do_syscall_64+0xc6/0x1e0 [ 838.291495][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.291495][ T10] [ 838.293514][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 838.293514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.293514][ T10] ipv6_find_idev+0x102/0x170 [ 838.293514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.293514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.293514][ T10] netlink_rcv_skb+0x130/0x360 [ 838.293514][ T10] netlink_unicast+0x449/0x710 [ 838.293514][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.293514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.293514][ T10] ___sys_sendmsg+0xee/0x170 [ 838.293514][ T10] __sys_sendmsg+0xcd/0x170 [ 838.293514][ T10] do_syscall_64+0xc6/0x1e0 [ 838.293514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.293514][ T10] [ 838.295073][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 838.295073][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.295073][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.295073][ T10] ipv6_find_idev+0x102/0x170 [ 838.295073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.295073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.295073][ T10] netlink_rcv_skb+0x130/0x360 [ 838.295073][ T10] netlink_unicast+0x449/0x710 [ 838.295073][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.295073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.295073][ T10] ___sys_sendmsg+0xee/0x170 [ 838.295073][ T10] __sys_sendmsg+0xcd/0x170 [ 838.295073][ T10] do_syscall_64+0xc6/0x1e0 [ 838.295073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.295073][ T10] [ 838.297232][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 838.297507][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 838.297507][ T10] netdev_get_by_index+0x5e/0x80 [ 838.297507][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.297507][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.297507][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.297507][ T10] ipv6_add_addr+0x411/0x2000 [ 838.297507][ T10] inet6_addr_add+0x30e/0xa40 [ 838.297507][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.297507][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.297507][ T10] netlink_rcv_skb+0x130/0x360 [ 838.297507][ T10] netlink_unicast+0x449/0x710 [ 838.297507][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.297507][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.297507][ T10] ___sys_sendmsg+0xee/0x170 [ 838.297507][ T10] __sys_sendmsg+0xcd/0x170 [ 838.297507][ T10] do_syscall_64+0xc6/0x1e0 [ 838.297507][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.297507][ T10] [ 838.299520][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 838.299520][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.299520][ T10] ipv6_find_idev+0x102/0x170 [ 838.299520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.299520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.299520][ T10] netlink_rcv_skb+0x130/0x360 [ 838.299520][ T10] netlink_unicast+0x449/0x710 [ 838.299520][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.299520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.299520][ T10] ___sys_sendmsg+0xee/0x170 [ 838.299520][ T10] __sys_sendmsg+0xcd/0x170 [ 838.299520][ T10] do_syscall_64+0xc6/0x1e0 [ 838.299520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.299520][ T10] [ 838.301181][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 838.301181][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.301181][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.301181][ T10] ipv6_find_idev+0x102/0x170 [ 838.301181][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.301181][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.301181][ T10] netlink_rcv_skb+0x130/0x360 [ 838.301181][ T10] netlink_unicast+0x449/0x710 [ 838.301181][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.301181][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.301181][ T10] ___sys_sendmsg+0xee/0x170 [ 838.301181][ T10] __sys_sendmsg+0xcd/0x170 [ 838.301181][ T10] do_syscall_64+0xc6/0x1e0 [ 838.301181][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.301181][ T10] [ 838.303110][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 838.303389][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 838.303389][ T10] netdev_get_by_index+0x5e/0x80 [ 838.303389][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.303389][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.303389][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.303389][ T10] ipv6_add_addr+0x411/0x2000 [ 838.303389][ T10] inet6_addr_add+0x30e/0xa40 [ 838.303389][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.303389][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.303389][ T10] netlink_rcv_skb+0x130/0x360 [ 838.303389][ T10] netlink_unicast+0x449/0x710 [ 838.303389][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.303389][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.303389][ T10] ___sys_sendmsg+0xee/0x170 [ 838.303389][ T10] __sys_sendmsg+0xcd/0x170 [ 838.303389][ T10] do_syscall_64+0xc6/0x1e0 [ 838.303389][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.303389][ T10] [ 838.305592][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 838.305592][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.305592][ T10] ipv6_find_idev+0x102/0x170 [ 838.305592][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.305592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.305592][ T10] netlink_rcv_skb+0x130/0x360 [ 838.305592][ T10] netlink_unicast+0x449/0x710 [ 838.305592][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.305592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.305592][ T10] ___sys_sendmsg+0xee/0x170 [ 838.305592][ T10] __sys_sendmsg+0xcd/0x170 [ 838.305592][ T10] do_syscall_64+0xc6/0x1e0 [ 838.305592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.305592][ T10] [ 838.307261][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 838.307261][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.307261][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.307261][ T10] ipv6_find_idev+0x102/0x170 [ 838.307261][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.307261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.307261][ T10] netlink_rcv_skb+0x130/0x360 [ 838.307261][ T10] netlink_unicast+0x449/0x710 [ 838.307261][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.307261][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.307261][ T10] ___sys_sendmsg+0xee/0x170 [ 838.307261][ T10] __sys_sendmsg+0xcd/0x170 [ 838.307261][ T10] do_syscall_64+0xc6/0x1e0 [ 838.307261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.307261][ T10] [ 838.309175][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 838.309451][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 838.309451][ T10] netdev_get_by_index+0x5e/0x80 [ 838.309451][ T10] fib6_nh_init+0x3d8/0x15b0 [ 838.309451][ T10] ip6_route_info_create+0xf18/0x17d0 [ 838.309451][ T10] addrconf_f6i_alloc+0x244/0x410 [ 838.309451][ T10] ipv6_add_addr+0x411/0x2000 [ 838.309451][ T10] inet6_addr_add+0x30e/0xa40 [ 838.309451][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 838.309451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.309451][ T10] netlink_rcv_skb+0x130/0x360 [ 838.309451][ T10] netlink_unicast+0x449/0x710 [ 838.309451][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.309451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.309451][ T10] ___sys_sendmsg+0xee/0x170 [ 838.309451][ T10] __sys_sendmsg+0xcd/0x170 [ 838.309451][ T10] do_syscall_64+0xc6/0x1e0 [ 838.309451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.309451][ T10] [ 838.311695][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 838.311695][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 838.311695][ T10] ipv6_find_idev+0x102/0x170 [ 838.311695][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.311695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.311695][ T10] netlink_rcv_skb+0x130/0x360 [ 838.311695][ T10] netlink_unicast+0x449/0x710 [ 838.311695][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.311695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.311695][ T10] ___sys_sendmsg+0xee/0x170 [ 838.311695][ T10] __sys_sendmsg+0xcd/0x170 [ 838.311695][ T10] do_syscall_64+0xc6/0x1e0 [ 838.311695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.311695][ T10] [ 838.313494][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 838.313494][ T10] neigh_parms_alloc+0x1e5/0x510 [ 838.313494][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 838.313494][ T10] ipv6_find_idev+0x102/0x170 [ 838.313494][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 838.313494][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 838.313494][ T10] netlink_rcv_skb+0x130/0x360 [ 838.313494][ T10] netlink_unicast+0x449/0x710 [ 838.313494][ T10] netlink_sendmsg+0x723/0xbe0 [ 838.313494][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 838.313494][ T10] ___sys_sendmsg+0xee/0x170 [ 838.313494][ T10] __sys_sendmsg+0xcd/0x170 [ 838.313494][ T10] do_syscall_64+0xc6/0x1e0 [ 838.313494][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 838.313494][ T10] [ 848.476662][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 848.477071][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 848.477071][ T10] netdev_get_by_index+0x5e/0x80 [ 848.477071][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.477071][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.477071][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.477071][ T10] ipv6_add_addr+0x411/0x2000 [ 848.477071][ T10] inet6_addr_add+0x30e/0xa40 [ 848.477071][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.477071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.477071][ T10] netlink_rcv_skb+0x130/0x360 [ 848.477071][ T10] netlink_unicast+0x449/0x710 [ 848.477071][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.477071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.477071][ T10] ___sys_sendmsg+0xee/0x170 [ 848.477071][ T10] __sys_sendmsg+0xcd/0x170 [ 848.477071][ T10] do_syscall_64+0xc6/0x1e0 [ 848.477071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.477071][ T10] [ 848.479579][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 848.479579][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.479579][ T10] ipv6_find_idev+0x102/0x170 [ 848.479579][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.479579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.479579][ T10] netlink_rcv_skb+0x130/0x360 [ 848.479579][ T10] netlink_unicast+0x449/0x710 [ 848.479579][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.479579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.479579][ T10] ___sys_sendmsg+0xee/0x170 [ 848.479579][ T10] __sys_sendmsg+0xcd/0x170 [ 848.479579][ T10] do_syscall_64+0xc6/0x1e0 [ 848.479579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.479579][ T10] [ 848.481495][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 848.481495][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.481495][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.481495][ T10] ipv6_find_idev+0x102/0x170 [ 848.481495][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.481495][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.481495][ T10] netlink_rcv_skb+0x130/0x360 [ 848.481495][ T10] netlink_unicast+0x449/0x710 [ 848.481495][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.481495][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.481495][ T10] ___sys_sendmsg+0xee/0x170 [ 848.481495][ T10] __sys_sendmsg+0xcd/0x170 [ 848.481495][ T10] do_syscall_64+0xc6/0x1e0 [ 848.481495][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.481495][ T10] [ 848.483505][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 848.483825][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 848.483825][ T10] netdev_get_by_index+0x5e/0x80 [ 848.483825][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.483825][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.483825][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.483825][ T10] ipv6_add_addr+0x411/0x2000 [ 848.483825][ T10] inet6_addr_add+0x30e/0xa40 [ 848.483825][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.483825][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.483825][ T10] netlink_rcv_skb+0x130/0x360 [ 848.483825][ T10] netlink_unicast+0x449/0x710 [ 848.483825][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.483825][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.483825][ T10] ___sys_sendmsg+0xee/0x170 [ 848.483825][ T10] __sys_sendmsg+0xcd/0x170 [ 848.483825][ T10] do_syscall_64+0xc6/0x1e0 [ 848.483825][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.483825][ T10] [ 848.486104][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 848.486104][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.486104][ T10] ipv6_find_idev+0x102/0x170 [ 848.486104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.486104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.486104][ T10] netlink_rcv_skb+0x130/0x360 [ 848.486104][ T10] netlink_unicast+0x449/0x710 [ 848.486104][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.486104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.486104][ T10] ___sys_sendmsg+0xee/0x170 [ 848.486104][ T10] __sys_sendmsg+0xcd/0x170 [ 848.486104][ T10] do_syscall_64+0xc6/0x1e0 [ 848.486104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.486104][ T10] [ 848.487991][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 848.487991][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.487991][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.487991][ T10] ipv6_find_idev+0x102/0x170 [ 848.487991][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.487991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.487991][ T10] netlink_rcv_skb+0x130/0x360 [ 848.487991][ T10] netlink_unicast+0x449/0x710 [ 848.487991][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.487991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.487991][ T10] ___sys_sendmsg+0xee/0x170 [ 848.487991][ T10] __sys_sendmsg+0xcd/0x170 [ 848.487991][ T10] do_syscall_64+0xc6/0x1e0 [ 848.487991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.487991][ T10] [ 848.489911][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 848.490207][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 848.490207][ T10] netdev_get_by_index+0x5e/0x80 [ 848.490207][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.490207][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.490207][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.490207][ T10] ipv6_add_addr+0x411/0x2000 [ 848.490207][ T10] inet6_addr_add+0x30e/0xa40 [ 848.490207][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.490207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.490207][ T10] netlink_rcv_skb+0x130/0x360 [ 848.490207][ T10] netlink_unicast+0x449/0x710 [ 848.490207][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.490207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.490207][ T10] ___sys_sendmsg+0xee/0x170 [ 848.490207][ T10] __sys_sendmsg+0xcd/0x170 [ 848.490207][ T10] do_syscall_64+0xc6/0x1e0 [ 848.490207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.490207][ T10] [ 848.492498][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 848.492498][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.492498][ T10] ipv6_find_idev+0x102/0x170 [ 848.492498][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.492498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.492498][ T10] netlink_rcv_skb+0x130/0x360 [ 848.492498][ T10] netlink_unicast+0x449/0x710 [ 848.492498][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.492498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.492498][ T10] ___sys_sendmsg+0xee/0x170 [ 848.492498][ T10] __sys_sendmsg+0xcd/0x170 [ 848.492498][ T10] do_syscall_64+0xc6/0x1e0 [ 848.492498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.492498][ T10] [ 848.494282][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 848.494282][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.494282][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.494282][ T10] ipv6_find_idev+0x102/0x170 [ 848.494282][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.494282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.494282][ T10] netlink_rcv_skb+0x130/0x360 [ 848.494282][ T10] netlink_unicast+0x449/0x710 [ 848.494282][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.494282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.494282][ T10] ___sys_sendmsg+0xee/0x170 [ 848.494282][ T10] __sys_sendmsg+0xcd/0x170 [ 848.494282][ T10] do_syscall_64+0xc6/0x1e0 [ 848.494282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.494282][ T10] [ 848.497025][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 848.497711][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 848.497711][ T10] netdev_get_by_index+0x5e/0x80 [ 848.497711][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.497711][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.497711][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.497711][ T10] ipv6_add_addr+0x411/0x2000 [ 848.497711][ T10] inet6_addr_add+0x30e/0xa40 [ 848.497711][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.497711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.497711][ T10] netlink_rcv_skb+0x130/0x360 [ 848.497711][ T10] netlink_unicast+0x449/0x710 [ 848.497711][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.497711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.497711][ T10] ___sys_sendmsg+0xee/0x170 [ 848.497711][ T10] __sys_sendmsg+0xcd/0x170 [ 848.497711][ T10] do_syscall_64+0xc6/0x1e0 [ 848.497711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.497711][ T10] [ 848.499982][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 848.499982][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.499982][ T10] ipv6_find_idev+0x102/0x170 [ 848.499982][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.499982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.499982][ T10] netlink_rcv_skb+0x130/0x360 [ 848.499982][ T10] netlink_unicast+0x449/0x710 [ 848.499982][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.499982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.499982][ T10] ___sys_sendmsg+0xee/0x170 [ 848.499982][ T10] __sys_sendmsg+0xcd/0x170 [ 848.499982][ T10] do_syscall_64+0xc6/0x1e0 [ 848.499982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.499982][ T10] [ 848.501746][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 848.501746][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.501746][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.501746][ T10] ipv6_find_idev+0x102/0x170 [ 848.501746][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.501746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.501746][ T10] netlink_rcv_skb+0x130/0x360 [ 848.501746][ T10] netlink_unicast+0x449/0x710 [ 848.501746][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.501746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.501746][ T10] ___sys_sendmsg+0xee/0x170 [ 848.501746][ T10] __sys_sendmsg+0xcd/0x170 [ 848.501746][ T10] do_syscall_64+0xc6/0x1e0 [ 848.501746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.501746][ T10] [ 848.503840][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 848.504215][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 848.504215][ T10] netdev_get_by_index+0x5e/0x80 [ 848.504215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.504215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.504215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.504215][ T10] ipv6_add_addr+0x411/0x2000 [ 848.504215][ T10] inet6_addr_add+0x30e/0xa40 [ 848.504215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.504215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.504215][ T10] netlink_rcv_skb+0x130/0x360 [ 848.504215][ T10] netlink_unicast+0x449/0x710 [ 848.504215][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.504215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.504215][ T10] ___sys_sendmsg+0xee/0x170 [ 848.504215][ T10] __sys_sendmsg+0xcd/0x170 [ 848.504215][ T10] do_syscall_64+0xc6/0x1e0 [ 848.504215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.504215][ T10] [ 848.506567][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 848.506567][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.506567][ T10] ipv6_find_idev+0x102/0x170 [ 848.506567][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.506567][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.506567][ T10] netlink_rcv_skb+0x130/0x360 [ 848.506567][ T10] netlink_unicast+0x449/0x710 [ 848.506567][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.506567][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.506567][ T10] ___sys_sendmsg+0xee/0x170 [ 848.506567][ T10] __sys_sendmsg+0xcd/0x170 [ 848.506567][ T10] do_syscall_64+0xc6/0x1e0 [ 848.506567][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.506567][ T10] [ 848.508322][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 848.508322][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.508322][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.508322][ T10] ipv6_find_idev+0x102/0x170 [ 848.508322][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.508322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.508322][ T10] netlink_rcv_skb+0x130/0x360 [ 848.508322][ T10] netlink_unicast+0x449/0x710 [ 848.508322][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.508322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.508322][ T10] ___sys_sendmsg+0xee/0x170 [ 848.508322][ T10] __sys_sendmsg+0xcd/0x170 [ 848.508322][ T10] do_syscall_64+0xc6/0x1e0 [ 848.508322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.508322][ T10] [ 848.510264][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 848.510627][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 848.510627][ T10] netdev_get_by_index+0x5e/0x80 [ 848.510627][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.510627][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.510627][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.510627][ T10] ipv6_add_addr+0x411/0x2000 [ 848.510627][ T10] inet6_addr_add+0x30e/0xa40 [ 848.510627][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.510627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.510627][ T10] netlink_rcv_skb+0x130/0x360 [ 848.510627][ T10] netlink_unicast+0x449/0x710 [ 848.510627][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.510627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.510627][ T10] ___sys_sendmsg+0xee/0x170 [ 848.510627][ T10] __sys_sendmsg+0xcd/0x170 [ 848.510627][ T10] do_syscall_64+0xc6/0x1e0 [ 848.510627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.510627][ T10] [ 848.513171][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 848.513171][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.513171][ T10] ipv6_find_idev+0x102/0x170 [ 848.513171][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.513171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.513171][ T10] netlink_rcv_skb+0x130/0x360 [ 848.513171][ T10] netlink_unicast+0x449/0x710 [ 848.513171][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.513171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.513171][ T10] ___sys_sendmsg+0xee/0x170 [ 848.513171][ T10] __sys_sendmsg+0xcd/0x170 [ 848.513171][ T10] do_syscall_64+0xc6/0x1e0 [ 848.513171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.513171][ T10] [ 848.515008][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 848.515008][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.515008][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.515008][ T10] ipv6_find_idev+0x102/0x170 [ 848.515008][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.515008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.515008][ T10] netlink_rcv_skb+0x130/0x360 [ 848.515008][ T10] netlink_unicast+0x449/0x710 [ 848.515008][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.515008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.515008][ T10] ___sys_sendmsg+0xee/0x170 [ 848.515008][ T10] __sys_sendmsg+0xcd/0x170 [ 848.515008][ T10] do_syscall_64+0xc6/0x1e0 [ 848.515008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.515008][ T10] [ 848.517140][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 848.517490][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 848.517490][ T10] netdev_get_by_index+0x5e/0x80 [ 848.517490][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.517490][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.517490][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.517490][ T10] ipv6_add_addr+0x411/0x2000 [ 848.517490][ T10] inet6_addr_add+0x30e/0xa40 [ 848.517490][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.517490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.517490][ T10] netlink_rcv_skb+0x130/0x360 [ 848.517490][ T10] netlink_unicast+0x449/0x710 [ 848.517490][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.517490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.517490][ T10] ___sys_sendmsg+0xee/0x170 [ 848.517490][ T10] __sys_sendmsg+0xcd/0x170 [ 848.517490][ T10] do_syscall_64+0xc6/0x1e0 [ 848.517490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.517490][ T10] [ 848.520026][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 848.520026][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.520026][ T10] ipv6_find_idev+0x102/0x170 [ 848.520026][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.520026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.520026][ T10] netlink_rcv_skb+0x130/0x360 [ 848.520026][ T10] netlink_unicast+0x449/0x710 [ 848.520026][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.520026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.520026][ T10] ___sys_sendmsg+0xee/0x170 [ 848.520026][ T10] __sys_sendmsg+0xcd/0x170 [ 848.520026][ T10] do_syscall_64+0xc6/0x1e0 [ 848.520026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.520026][ T10] [ 848.521912][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 848.521912][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.521912][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.521912][ T10] ipv6_find_idev+0x102/0x170 [ 848.521912][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.521912][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.521912][ T10] netlink_rcv_skb+0x130/0x360 [ 848.521912][ T10] netlink_unicast+0x449/0x710 [ 848.521912][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.521912][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.521912][ T10] ___sys_sendmsg+0xee/0x170 [ 848.521912][ T10] __sys_sendmsg+0xcd/0x170 [ 848.521912][ T10] do_syscall_64+0xc6/0x1e0 [ 848.521912][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.521912][ T10] [ 848.524126][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 848.524469][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 848.524469][ T10] netdev_get_by_index+0x5e/0x80 [ 848.524469][ T10] fib6_nh_init+0x3d8/0x15b0 [ 848.524469][ T10] ip6_route_info_create+0xf18/0x17d0 [ 848.524469][ T10] addrconf_f6i_alloc+0x244/0x410 [ 848.524469][ T10] ipv6_add_addr+0x411/0x2000 [ 848.524469][ T10] inet6_addr_add+0x30e/0xa40 [ 848.524469][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 848.524469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.524469][ T10] netlink_rcv_skb+0x130/0x360 [ 848.524469][ T10] netlink_unicast+0x449/0x710 [ 848.524469][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.524469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.524469][ T10] ___sys_sendmsg+0xee/0x170 [ 848.524469][ T10] __sys_sendmsg+0xcd/0x170 [ 848.524469][ T10] do_syscall_64+0xc6/0x1e0 [ 848.524469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.524469][ T10] [ 848.526825][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 848.526825][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 848.526825][ T10] ipv6_find_idev+0x102/0x170 [ 848.526825][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.526825][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.526825][ T10] netlink_rcv_skb+0x130/0x360 [ 848.526825][ T10] netlink_unicast+0x449/0x710 [ 848.526825][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.526825][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.526825][ T10] ___sys_sendmsg+0xee/0x170 [ 848.526825][ T10] __sys_sendmsg+0xcd/0x170 [ 848.526825][ T10] do_syscall_64+0xc6/0x1e0 [ 848.526825][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.526825][ T10] [ 848.528644][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 848.528644][ T10] neigh_parms_alloc+0x1e5/0x510 [ 848.528644][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 848.528644][ T10] ipv6_find_idev+0x102/0x170 [ 848.528644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 848.528644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 848.528644][ T10] netlink_rcv_skb+0x130/0x360 [ 848.528644][ T10] netlink_unicast+0x449/0x710 [ 848.528644][ T10] netlink_sendmsg+0x723/0xbe0 [ 848.528644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 848.528644][ T10] ___sys_sendmsg+0xee/0x170 [ 848.528644][ T10] __sys_sendmsg+0xcd/0x170 [ 848.528644][ T10] do_syscall_64+0xc6/0x1e0 [ 848.528644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 848.528644][ T10] [ 858.683737][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 858.684097][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 858.684097][ T10] netdev_get_by_index+0x5e/0x80 [ 858.684097][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.684097][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.684097][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.684097][ T10] ipv6_add_addr+0x411/0x2000 [ 858.684097][ T10] inet6_addr_add+0x30e/0xa40 [ 858.684097][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.684097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.684097][ T10] netlink_rcv_skb+0x130/0x360 [ 858.684097][ T10] netlink_unicast+0x449/0x710 [ 858.684097][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.684097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.684097][ T10] ___sys_sendmsg+0xee/0x170 [ 858.684097][ T10] __sys_sendmsg+0xcd/0x170 [ 858.684097][ T10] do_syscall_64+0xc6/0x1e0 [ 858.684097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.684097][ T10] [ 858.686215][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 858.686215][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.686215][ T10] ipv6_find_idev+0x102/0x170 [ 858.686215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.686215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.686215][ T10] netlink_rcv_skb+0x130/0x360 [ 858.686215][ T10] netlink_unicast+0x449/0x710 [ 858.686215][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.686215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.686215][ T10] ___sys_sendmsg+0xee/0x170 [ 858.686215][ T10] __sys_sendmsg+0xcd/0x170 [ 858.686215][ T10] do_syscall_64+0xc6/0x1e0 [ 858.686215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.686215][ T10] [ 858.687770][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 858.687770][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.687770][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.687770][ T10] ipv6_find_idev+0x102/0x170 [ 858.687770][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.687770][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.687770][ T10] netlink_rcv_skb+0x130/0x360 [ 858.687770][ T10] netlink_unicast+0x449/0x710 [ 858.687770][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.687770][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.687770][ T10] ___sys_sendmsg+0xee/0x170 [ 858.687770][ T10] __sys_sendmsg+0xcd/0x170 [ 858.687770][ T10] do_syscall_64+0xc6/0x1e0 [ 858.687770][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.687770][ T10] [ 858.689540][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 858.689838][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 858.689838][ T10] netdev_get_by_index+0x5e/0x80 [ 858.689838][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.689838][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.689838][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.689838][ T10] ipv6_add_addr+0x411/0x2000 [ 858.689838][ T10] inet6_addr_add+0x30e/0xa40 [ 858.689838][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.689838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.689838][ T10] netlink_rcv_skb+0x130/0x360 [ 858.689838][ T10] netlink_unicast+0x449/0x710 [ 858.689838][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.689838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.689838][ T10] ___sys_sendmsg+0xee/0x170 [ 858.689838][ T10] __sys_sendmsg+0xcd/0x170 [ 858.689838][ T10] do_syscall_64+0xc6/0x1e0 [ 858.689838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.689838][ T10] [ 858.691877][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 858.691877][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.691877][ T10] ipv6_find_idev+0x102/0x170 [ 858.691877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.691877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.691877][ T10] netlink_rcv_skb+0x130/0x360 [ 858.691877][ T10] netlink_unicast+0x449/0x710 [ 858.691877][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.691877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.691877][ T10] ___sys_sendmsg+0xee/0x170 [ 858.691877][ T10] __sys_sendmsg+0xcd/0x170 [ 858.691877][ T10] do_syscall_64+0xc6/0x1e0 [ 858.691877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.691877][ T10] [ 858.693428][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 858.693428][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.693428][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.693428][ T10] ipv6_find_idev+0x102/0x170 [ 858.693428][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.693428][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.693428][ T10] netlink_rcv_skb+0x130/0x360 [ 858.693428][ T10] netlink_unicast+0x449/0x710 [ 858.693428][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.693428][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.693428][ T10] ___sys_sendmsg+0xee/0x170 [ 858.693428][ T10] __sys_sendmsg+0xcd/0x170 [ 858.693428][ T10] do_syscall_64+0xc6/0x1e0 [ 858.693428][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.693428][ T10] [ 858.695156][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 858.695433][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 858.695433][ T10] netdev_get_by_index+0x5e/0x80 [ 858.695433][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.695433][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.695433][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.695433][ T10] ipv6_add_addr+0x411/0x2000 [ 858.695433][ T10] inet6_addr_add+0x30e/0xa40 [ 858.695433][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.695433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.695433][ T10] netlink_rcv_skb+0x130/0x360 [ 858.695433][ T10] netlink_unicast+0x449/0x710 [ 858.695433][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.695433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.695433][ T10] ___sys_sendmsg+0xee/0x170 [ 858.695433][ T10] __sys_sendmsg+0xcd/0x170 [ 858.695433][ T10] do_syscall_64+0xc6/0x1e0 [ 858.695433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.695433][ T10] [ 858.697484][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 858.697484][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.697484][ T10] ipv6_find_idev+0x102/0x170 [ 858.697484][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.697484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.697484][ T10] netlink_rcv_skb+0x130/0x360 [ 858.697484][ T10] netlink_unicast+0x449/0x710 [ 858.697484][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.697484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.697484][ T10] ___sys_sendmsg+0xee/0x170 [ 858.697484][ T10] __sys_sendmsg+0xcd/0x170 [ 858.697484][ T10] do_syscall_64+0xc6/0x1e0 [ 858.697484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.697484][ T10] [ 858.699037][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 858.699037][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.699037][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.699037][ T10] ipv6_find_idev+0x102/0x170 [ 858.699037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.699037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.699037][ T10] netlink_rcv_skb+0x130/0x360 [ 858.699037][ T10] netlink_unicast+0x449/0x710 [ 858.699037][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.699037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.699037][ T10] ___sys_sendmsg+0xee/0x170 [ 858.699037][ T10] __sys_sendmsg+0xcd/0x170 [ 858.699037][ T10] do_syscall_64+0xc6/0x1e0 [ 858.699037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.699037][ T10] [ 858.700792][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 858.701075][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 858.701075][ T10] netdev_get_by_index+0x5e/0x80 [ 858.701075][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.701075][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.701075][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.701075][ T10] ipv6_add_addr+0x411/0x2000 [ 858.701075][ T10] inet6_addr_add+0x30e/0xa40 [ 858.701075][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.701075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.701075][ T10] netlink_rcv_skb+0x130/0x360 [ 858.701075][ T10] netlink_unicast+0x449/0x710 [ 858.701075][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.701075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.701075][ T10] ___sys_sendmsg+0xee/0x170 [ 858.701075][ T10] __sys_sendmsg+0xcd/0x170 [ 858.701075][ T10] do_syscall_64+0xc6/0x1e0 [ 858.701075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.701075][ T10] [ 858.703139][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 858.703139][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.703139][ T10] ipv6_find_idev+0x102/0x170 [ 858.703139][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.703139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.703139][ T10] netlink_rcv_skb+0x130/0x360 [ 858.703139][ T10] netlink_unicast+0x449/0x710 [ 858.703139][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.703139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.703139][ T10] ___sys_sendmsg+0xee/0x170 [ 858.703139][ T10] __sys_sendmsg+0xcd/0x170 [ 858.703139][ T10] do_syscall_64+0xc6/0x1e0 [ 858.703139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.703139][ T10] [ 858.704695][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 858.704695][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.704695][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.704695][ T10] ipv6_find_idev+0x102/0x170 [ 858.704695][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.704695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.704695][ T10] netlink_rcv_skb+0x130/0x360 [ 858.704695][ T10] netlink_unicast+0x449/0x710 [ 858.704695][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.704695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.704695][ T10] ___sys_sendmsg+0xee/0x170 [ 858.704695][ T10] __sys_sendmsg+0xcd/0x170 [ 858.704695][ T10] do_syscall_64+0xc6/0x1e0 [ 858.704695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.704695][ T10] [ 858.706434][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 858.706733][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 858.706733][ T10] netdev_get_by_index+0x5e/0x80 [ 858.706733][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.706733][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.706733][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.706733][ T10] ipv6_add_addr+0x411/0x2000 [ 858.706733][ T10] inet6_addr_add+0x30e/0xa40 [ 858.706733][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.706733][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.706733][ T10] netlink_rcv_skb+0x130/0x360 [ 858.706733][ T10] netlink_unicast+0x449/0x710 [ 858.706733][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.706733][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.706733][ T10] ___sys_sendmsg+0xee/0x170 [ 858.706733][ T10] __sys_sendmsg+0xcd/0x170 [ 858.706733][ T10] do_syscall_64+0xc6/0x1e0 [ 858.706733][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.706733][ T10] [ 858.708880][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 858.708880][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.708880][ T10] ipv6_find_idev+0x102/0x170 [ 858.708880][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.708880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.708880][ T10] netlink_rcv_skb+0x130/0x360 [ 858.708880][ T10] netlink_unicast+0x449/0x710 [ 858.708880][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.708880][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.708880][ T10] ___sys_sendmsg+0xee/0x170 [ 858.708880][ T10] __sys_sendmsg+0xcd/0x170 [ 858.708880][ T10] do_syscall_64+0xc6/0x1e0 [ 858.708880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.708880][ T10] [ 858.710602][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 858.710602][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.710602][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.710602][ T10] ipv6_find_idev+0x102/0x170 [ 858.710602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.710602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.710602][ T10] netlink_rcv_skb+0x130/0x360 [ 858.710602][ T10] netlink_unicast+0x449/0x710 [ 858.710602][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.710602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.710602][ T10] ___sys_sendmsg+0xee/0x170 [ 858.710602][ T10] __sys_sendmsg+0xcd/0x170 [ 858.710602][ T10] do_syscall_64+0xc6/0x1e0 [ 858.710602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.710602][ T10] [ 858.712454][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 858.712798][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 858.712798][ T10] netdev_get_by_index+0x5e/0x80 [ 858.712798][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.712798][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.712798][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.712798][ T10] ipv6_add_addr+0x411/0x2000 [ 858.712798][ T10] inet6_addr_add+0x30e/0xa40 [ 858.712798][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.712798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.712798][ T10] netlink_rcv_skb+0x130/0x360 [ 858.712798][ T10] netlink_unicast+0x449/0x710 [ 858.712798][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.712798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.712798][ T10] ___sys_sendmsg+0xee/0x170 [ 858.712798][ T10] __sys_sendmsg+0xcd/0x170 [ 858.712798][ T10] do_syscall_64+0xc6/0x1e0 [ 858.712798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.712798][ T10] [ 858.715080][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 858.715080][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.715080][ T10] ipv6_find_idev+0x102/0x170 [ 858.715080][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.715080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.715080][ T10] netlink_rcv_skb+0x130/0x360 [ 858.715080][ T10] netlink_unicast+0x449/0x710 [ 858.715080][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.715080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.715080][ T10] ___sys_sendmsg+0xee/0x170 [ 858.715080][ T10] __sys_sendmsg+0xcd/0x170 [ 858.715080][ T10] do_syscall_64+0xc6/0x1e0 [ 858.715080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.715080][ T10] [ 858.716814][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 858.716814][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.716814][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.716814][ T10] ipv6_find_idev+0x102/0x170 [ 858.716814][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.716814][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.716814][ T10] netlink_rcv_skb+0x130/0x360 [ 858.716814][ T10] netlink_unicast+0x449/0x710 [ 858.716814][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.716814][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.716814][ T10] ___sys_sendmsg+0xee/0x170 [ 858.716814][ T10] __sys_sendmsg+0xcd/0x170 [ 858.716814][ T10] do_syscall_64+0xc6/0x1e0 [ 858.716814][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.716814][ T10] [ 858.718746][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 858.719018][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 858.719018][ T10] netdev_get_by_index+0x5e/0x80 [ 858.719018][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.719018][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.719018][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.719018][ T10] ipv6_add_addr+0x411/0x2000 [ 858.719018][ T10] inet6_addr_add+0x30e/0xa40 [ 858.719018][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.719018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.719018][ T10] netlink_rcv_skb+0x130/0x360 [ 858.719018][ T10] netlink_unicast+0x449/0x710 [ 858.719018][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.719018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.719018][ T10] ___sys_sendmsg+0xee/0x170 [ 858.719018][ T10] __sys_sendmsg+0xcd/0x170 [ 858.719018][ T10] do_syscall_64+0xc6/0x1e0 [ 858.719018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.719018][ T10] [ 858.721208][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 858.721208][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.721208][ T10] ipv6_find_idev+0x102/0x170 [ 858.721208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.721208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.721208][ T10] netlink_rcv_skb+0x130/0x360 [ 858.721208][ T10] netlink_unicast+0x449/0x710 [ 858.721208][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.721208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.721208][ T10] ___sys_sendmsg+0xee/0x170 [ 858.721208][ T10] __sys_sendmsg+0xcd/0x170 [ 858.721208][ T10] do_syscall_64+0xc6/0x1e0 [ 858.721208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.721208][ T10] [ 858.722866][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 858.722866][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.722866][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.722866][ T10] ipv6_find_idev+0x102/0x170 [ 858.722866][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.722866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.722866][ T10] netlink_rcv_skb+0x130/0x360 [ 858.722866][ T10] netlink_unicast+0x449/0x710 [ 858.722866][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.722866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.722866][ T10] ___sys_sendmsg+0xee/0x170 [ 858.722866][ T10] __sys_sendmsg+0xcd/0x170 [ 858.722866][ T10] do_syscall_64+0xc6/0x1e0 [ 858.722866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.722866][ T10] [ 858.724932][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 858.725227][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 858.725227][ T10] netdev_get_by_index+0x5e/0x80 [ 858.725227][ T10] fib6_nh_init+0x3d8/0x15b0 [ 858.725227][ T10] ip6_route_info_create+0xf18/0x17d0 [ 858.725227][ T10] addrconf_f6i_alloc+0x244/0x410 [ 858.725227][ T10] ipv6_add_addr+0x411/0x2000 [ 858.725227][ T10] inet6_addr_add+0x30e/0xa40 [ 858.725227][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 858.725227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.725227][ T10] netlink_rcv_skb+0x130/0x360 [ 858.725227][ T10] netlink_unicast+0x449/0x710 [ 858.725227][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.725227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.725227][ T10] ___sys_sendmsg+0xee/0x170 [ 858.725227][ T10] __sys_sendmsg+0xcd/0x170 [ 858.725227][ T10] do_syscall_64+0xc6/0x1e0 [ 858.725227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.725227][ T10] [ 858.727318][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 858.727318][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 858.727318][ T10] ipv6_find_idev+0x102/0x170 [ 858.727318][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.727318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.727318][ T10] netlink_rcv_skb+0x130/0x360 [ 858.727318][ T10] netlink_unicast+0x449/0x710 [ 858.727318][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.727318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.727318][ T10] ___sys_sendmsg+0xee/0x170 [ 858.727318][ T10] __sys_sendmsg+0xcd/0x170 [ 858.727318][ T10] do_syscall_64+0xc6/0x1e0 [ 858.727318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.727318][ T10] [ 858.728860][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 858.728860][ T10] neigh_parms_alloc+0x1e5/0x510 [ 858.728860][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 858.728860][ T10] ipv6_find_idev+0x102/0x170 [ 858.728860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 858.728860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 858.728860][ T10] netlink_rcv_skb+0x130/0x360 [ 858.728860][ T10] netlink_unicast+0x449/0x710 [ 858.728860][ T10] netlink_sendmsg+0x723/0xbe0 [ 858.728860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 858.728860][ T10] ___sys_sendmsg+0xee/0x170 [ 858.728860][ T10] __sys_sendmsg+0xcd/0x170 [ 858.728860][ T10] do_syscall_64+0xc6/0x1e0 [ 858.728860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 858.728860][ T10] [ 868.843772][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 868.844149][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 868.844149][ T10] netdev_get_by_index+0x5e/0x80 [ 868.844149][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.844149][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.844149][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.844149][ T10] ipv6_add_addr+0x411/0x2000 [ 868.844149][ T10] inet6_addr_add+0x30e/0xa40 [ 868.844149][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.844149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.844149][ T10] netlink_rcv_skb+0x130/0x360 [ 868.844149][ T10] netlink_unicast+0x449/0x710 [ 868.844149][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.844149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.844149][ T10] ___sys_sendmsg+0xee/0x170 [ 868.844149][ T10] __sys_sendmsg+0xcd/0x170 [ 868.844149][ T10] do_syscall_64+0xc6/0x1e0 [ 868.844149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.844149][ T10] [ 868.846407][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 868.846407][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.846407][ T10] ipv6_find_idev+0x102/0x170 [ 868.846407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.846407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.846407][ T10] netlink_rcv_skb+0x130/0x360 [ 868.846407][ T10] netlink_unicast+0x449/0x710 [ 868.846407][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.846407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.846407][ T10] ___sys_sendmsg+0xee/0x170 [ 868.846407][ T10] __sys_sendmsg+0xcd/0x170 [ 868.846407][ T10] do_syscall_64+0xc6/0x1e0 [ 868.846407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.846407][ T10] [ 868.848117][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 868.848117][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.848117][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.848117][ T10] ipv6_find_idev+0x102/0x170 [ 868.848117][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.848117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.848117][ T10] netlink_rcv_skb+0x130/0x360 [ 868.848117][ T10] netlink_unicast+0x449/0x710 [ 868.848117][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.848117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.848117][ T10] ___sys_sendmsg+0xee/0x170 [ 868.848117][ T10] __sys_sendmsg+0xcd/0x170 [ 868.848117][ T10] do_syscall_64+0xc6/0x1e0 [ 868.848117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.848117][ T10] [ 868.850021][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 868.850323][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 868.850323][ T10] netdev_get_by_index+0x5e/0x80 [ 868.850323][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.850323][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.850323][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.850323][ T10] ipv6_add_addr+0x411/0x2000 [ 868.850323][ T10] inet6_addr_add+0x30e/0xa40 [ 868.850323][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.850323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.850323][ T10] netlink_rcv_skb+0x130/0x360 [ 868.850323][ T10] netlink_unicast+0x449/0x710 [ 868.850323][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.850323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.850323][ T10] ___sys_sendmsg+0xee/0x170 [ 868.850323][ T10] __sys_sendmsg+0xcd/0x170 [ 868.850323][ T10] do_syscall_64+0xc6/0x1e0 [ 868.850323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.850323][ T10] [ 868.852576][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 868.852576][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.852576][ T10] ipv6_find_idev+0x102/0x170 [ 868.852576][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.852576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.852576][ T10] netlink_rcv_skb+0x130/0x360 [ 868.852576][ T10] netlink_unicast+0x449/0x710 [ 868.852576][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.852576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.852576][ T10] ___sys_sendmsg+0xee/0x170 [ 868.852576][ T10] __sys_sendmsg+0xcd/0x170 [ 868.852576][ T10] do_syscall_64+0xc6/0x1e0 [ 868.852576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.852576][ T10] [ 868.854376][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 868.854376][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.854376][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.854376][ T10] ipv6_find_idev+0x102/0x170 [ 868.854376][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.854376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.854376][ T10] netlink_rcv_skb+0x130/0x360 [ 868.854376][ T10] netlink_unicast+0x449/0x710 [ 868.854376][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.854376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.854376][ T10] ___sys_sendmsg+0xee/0x170 [ 868.854376][ T10] __sys_sendmsg+0xcd/0x170 [ 868.854376][ T10] do_syscall_64+0xc6/0x1e0 [ 868.854376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.854376][ T10] [ 868.856292][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 868.856583][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 868.856583][ T10] netdev_get_by_index+0x5e/0x80 [ 868.856583][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.856583][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.856583][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.856583][ T10] ipv6_add_addr+0x411/0x2000 [ 868.856583][ T10] inet6_addr_add+0x30e/0xa40 [ 868.856583][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.856583][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.856583][ T10] netlink_rcv_skb+0x130/0x360 [ 868.856583][ T10] netlink_unicast+0x449/0x710 [ 868.856583][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.856583][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.856583][ T10] ___sys_sendmsg+0xee/0x170 [ 868.856583][ T10] __sys_sendmsg+0xcd/0x170 [ 868.856583][ T10] do_syscall_64+0xc6/0x1e0 [ 868.856583][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.856583][ T10] [ 868.858817][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 868.858817][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.858817][ T10] ipv6_find_idev+0x102/0x170 [ 868.858817][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.858817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.858817][ T10] netlink_rcv_skb+0x130/0x360 [ 868.858817][ T10] netlink_unicast+0x449/0x710 [ 868.858817][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.858817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.858817][ T10] ___sys_sendmsg+0xee/0x170 [ 868.858817][ T10] __sys_sendmsg+0xcd/0x170 [ 868.858817][ T10] do_syscall_64+0xc6/0x1e0 [ 868.858817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.858817][ T10] [ 868.860549][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 868.860549][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.860549][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.860549][ T10] ipv6_find_idev+0x102/0x170 [ 868.860549][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.860549][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.860549][ T10] netlink_rcv_skb+0x130/0x360 [ 868.860549][ T10] netlink_unicast+0x449/0x710 [ 868.860549][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.860549][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.860549][ T10] ___sys_sendmsg+0xee/0x170 [ 868.860549][ T10] __sys_sendmsg+0xcd/0x170 [ 868.860549][ T10] do_syscall_64+0xc6/0x1e0 [ 868.860549][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.860549][ T10] [ 868.862442][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 868.863271][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 868.863271][ T10] netdev_get_by_index+0x5e/0x80 [ 868.863271][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.863271][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.863271][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.863271][ T10] ipv6_add_addr+0x411/0x2000 [ 868.863271][ T10] inet6_addr_add+0x30e/0xa40 [ 868.863271][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.863271][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.863271][ T10] netlink_rcv_skb+0x130/0x360 [ 868.863271][ T10] netlink_unicast+0x449/0x710 [ 868.863271][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.863271][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.863271][ T10] ___sys_sendmsg+0xee/0x170 [ 868.863271][ T10] __sys_sendmsg+0xcd/0x170 [ 868.863271][ T10] do_syscall_64+0xc6/0x1e0 [ 868.863271][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.863271][ T10] [ 868.865475][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 868.865475][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.865475][ T10] ipv6_find_idev+0x102/0x170 [ 868.865475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.865475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.865475][ T10] netlink_rcv_skb+0x130/0x360 [ 868.865475][ T10] netlink_unicast+0x449/0x710 [ 868.865475][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.865475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.865475][ T10] ___sys_sendmsg+0xee/0x170 [ 868.865475][ T10] __sys_sendmsg+0xcd/0x170 [ 868.865475][ T10] do_syscall_64+0xc6/0x1e0 [ 868.865475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.865475][ T10] [ 868.867180][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 868.867180][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.867180][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.867180][ T10] ipv6_find_idev+0x102/0x170 [ 868.867180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.867180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.867180][ T10] netlink_rcv_skb+0x130/0x360 [ 868.867180][ T10] netlink_unicast+0x449/0x710 [ 868.867180][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.867180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.867180][ T10] ___sys_sendmsg+0xee/0x170 [ 868.867180][ T10] __sys_sendmsg+0xcd/0x170 [ 868.867180][ T10] do_syscall_64+0xc6/0x1e0 [ 868.867180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.867180][ T10] [ 868.869156][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 868.869453][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 868.869453][ T10] netdev_get_by_index+0x5e/0x80 [ 868.869453][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.869453][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.869453][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.869453][ T10] ipv6_add_addr+0x411/0x2000 [ 868.869453][ T10] inet6_addr_add+0x30e/0xa40 [ 868.869453][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.869453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.869453][ T10] netlink_rcv_skb+0x130/0x360 [ 868.869453][ T10] netlink_unicast+0x449/0x710 [ 868.869453][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.869453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.869453][ T10] ___sys_sendmsg+0xee/0x170 [ 868.869453][ T10] __sys_sendmsg+0xcd/0x170 [ 868.869453][ T10] do_syscall_64+0xc6/0x1e0 [ 868.869453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.869453][ T10] [ 868.871815][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 868.871815][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.871815][ T10] ipv6_find_idev+0x102/0x170 [ 868.871815][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.871815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.871815][ T10] netlink_rcv_skb+0x130/0x360 [ 868.871815][ T10] netlink_unicast+0x449/0x710 [ 868.871815][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.871815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.871815][ T10] ___sys_sendmsg+0xee/0x170 [ 868.871815][ T10] __sys_sendmsg+0xcd/0x170 [ 868.871815][ T10] do_syscall_64+0xc6/0x1e0 [ 868.871815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.871815][ T10] [ 868.873601][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 868.873601][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.873601][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.873601][ T10] ipv6_find_idev+0x102/0x170 [ 868.873601][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.873601][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.873601][ T10] netlink_rcv_skb+0x130/0x360 [ 868.873601][ T10] netlink_unicast+0x449/0x710 [ 868.873601][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.873601][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.873601][ T10] ___sys_sendmsg+0xee/0x170 [ 868.873601][ T10] __sys_sendmsg+0xcd/0x170 [ 868.873601][ T10] do_syscall_64+0xc6/0x1e0 [ 868.873601][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.873601][ T10] [ 868.875822][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 868.876133][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 868.876133][ T10] netdev_get_by_index+0x5e/0x80 [ 868.876133][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.876133][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.876133][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.876133][ T10] ipv6_add_addr+0x411/0x2000 [ 868.876133][ T10] inet6_addr_add+0x30e/0xa40 [ 868.876133][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.876133][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.876133][ T10] netlink_rcv_skb+0x130/0x360 [ 868.876133][ T10] netlink_unicast+0x449/0x710 [ 868.876133][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.876133][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.876133][ T10] ___sys_sendmsg+0xee/0x170 [ 868.876133][ T10] __sys_sendmsg+0xcd/0x170 [ 868.876133][ T10] do_syscall_64+0xc6/0x1e0 [ 868.876133][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.876133][ T10] [ 868.878778][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 868.878778][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.878778][ T10] ipv6_find_idev+0x102/0x170 [ 868.878778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.878778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.878778][ T10] netlink_rcv_skb+0x130/0x360 [ 868.878778][ T10] netlink_unicast+0x449/0x710 [ 868.878778][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.878778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.878778][ T10] ___sys_sendmsg+0xee/0x170 [ 868.878778][ T10] __sys_sendmsg+0xcd/0x170 [ 868.878778][ T10] do_syscall_64+0xc6/0x1e0 [ 868.878778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.878778][ T10] [ 868.880843][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 868.880843][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.880843][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.880843][ T10] ipv6_find_idev+0x102/0x170 [ 868.880843][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.880843][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.880843][ T10] netlink_rcv_skb+0x130/0x360 [ 868.880843][ T10] netlink_unicast+0x449/0x710 [ 868.880843][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.880843][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.880843][ T10] ___sys_sendmsg+0xee/0x170 [ 868.880843][ T10] __sys_sendmsg+0xcd/0x170 [ 868.880843][ T10] do_syscall_64+0xc6/0x1e0 [ 868.880843][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.880843][ T10] [ 868.882936][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 868.883226][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 868.883226][ T10] netdev_get_by_index+0x5e/0x80 [ 868.883226][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.883226][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.883226][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.883226][ T10] ipv6_add_addr+0x411/0x2000 [ 868.883226][ T10] inet6_addr_add+0x30e/0xa40 [ 868.883226][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.883226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.883226][ T10] netlink_rcv_skb+0x130/0x360 [ 868.883226][ T10] netlink_unicast+0x449/0x710 [ 868.883226][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.883226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.883226][ T10] ___sys_sendmsg+0xee/0x170 [ 868.883226][ T10] __sys_sendmsg+0xcd/0x170 [ 868.883226][ T10] do_syscall_64+0xc6/0x1e0 [ 868.883226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.883226][ T10] [ 868.885744][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 868.885744][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.885744][ T10] ipv6_find_idev+0x102/0x170 [ 868.885744][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.885744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.885744][ T10] netlink_rcv_skb+0x130/0x360 [ 868.885744][ T10] netlink_unicast+0x449/0x710 [ 868.885744][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.885744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.885744][ T10] ___sys_sendmsg+0xee/0x170 [ 868.885744][ T10] __sys_sendmsg+0xcd/0x170 [ 868.885744][ T10] do_syscall_64+0xc6/0x1e0 [ 868.885744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.885744][ T10] [ 868.887643][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 868.887643][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.887643][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.887643][ T10] ipv6_find_idev+0x102/0x170 [ 868.887643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.887643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.887643][ T10] netlink_rcv_skb+0x130/0x360 [ 868.887643][ T10] netlink_unicast+0x449/0x710 [ 868.887643][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.887643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.887643][ T10] ___sys_sendmsg+0xee/0x170 [ 868.887643][ T10] __sys_sendmsg+0xcd/0x170 [ 868.887643][ T10] do_syscall_64+0xc6/0x1e0 [ 868.887643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.887643][ T10] [ 868.889740][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 868.890033][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 868.890033][ T10] netdev_get_by_index+0x5e/0x80 [ 868.890033][ T10] fib6_nh_init+0x3d8/0x15b0 [ 868.890033][ T10] ip6_route_info_create+0xf18/0x17d0 [ 868.890033][ T10] addrconf_f6i_alloc+0x244/0x410 [ 868.890033][ T10] ipv6_add_addr+0x411/0x2000 [ 868.890033][ T10] inet6_addr_add+0x30e/0xa40 [ 868.890033][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 868.890033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.890033][ T10] netlink_rcv_skb+0x130/0x360 [ 868.890033][ T10] netlink_unicast+0x449/0x710 [ 868.890033][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.890033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.890033][ T10] ___sys_sendmsg+0xee/0x170 [ 868.890033][ T10] __sys_sendmsg+0xcd/0x170 [ 868.890033][ T10] do_syscall_64+0xc6/0x1e0 [ 868.890033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.890033][ T10] [ 868.892370][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 868.892370][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 868.892370][ T10] ipv6_find_idev+0x102/0x170 [ 868.892370][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.892370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.892370][ T10] netlink_rcv_skb+0x130/0x360 [ 868.892370][ T10] netlink_unicast+0x449/0x710 [ 868.892370][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.892370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.892370][ T10] ___sys_sendmsg+0xee/0x170 [ 868.892370][ T10] __sys_sendmsg+0xcd/0x170 [ 868.892370][ T10] do_syscall_64+0xc6/0x1e0 [ 868.892370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.892370][ T10] [ 868.894156][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 868.894156][ T10] neigh_parms_alloc+0x1e5/0x510 [ 868.894156][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 868.894156][ T10] ipv6_find_idev+0x102/0x170 [ 868.894156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 868.894156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 868.894156][ T10] netlink_rcv_skb+0x130/0x360 [ 868.894156][ T10] netlink_unicast+0x449/0x710 [ 868.894156][ T10] netlink_sendmsg+0x723/0xbe0 [ 868.894156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 868.894156][ T10] ___sys_sendmsg+0xee/0x170 [ 868.894156][ T10] __sys_sendmsg+0xcd/0x170 [ 868.894156][ T10] do_syscall_64+0xc6/0x1e0 [ 868.894156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 868.894156][ T10] [ 879.003761][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 879.004115][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 879.004115][ T10] netdev_get_by_index+0x5e/0x80 [ 879.004115][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.004115][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.004115][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.004115][ T10] ipv6_add_addr+0x411/0x2000 [ 879.004115][ T10] inet6_addr_add+0x30e/0xa40 [ 879.004115][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.004115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.004115][ T10] netlink_rcv_skb+0x130/0x360 [ 879.004115][ T10] netlink_unicast+0x449/0x710 [ 879.004115][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.004115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.004115][ T10] ___sys_sendmsg+0xee/0x170 [ 879.004115][ T10] __sys_sendmsg+0xcd/0x170 [ 879.004115][ T10] do_syscall_64+0xc6/0x1e0 [ 879.004115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.004115][ T10] [ 879.006373][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 879.006373][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.006373][ T10] ipv6_find_idev+0x102/0x170 [ 879.006373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.006373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.006373][ T10] netlink_rcv_skb+0x130/0x360 [ 879.006373][ T10] netlink_unicast+0x449/0x710 [ 879.006373][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.006373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.006373][ T10] ___sys_sendmsg+0xee/0x170 [ 879.006373][ T10] __sys_sendmsg+0xcd/0x170 [ 879.006373][ T10] do_syscall_64+0xc6/0x1e0 [ 879.006373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.006373][ T10] [ 879.008078][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 879.008078][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.008078][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.008078][ T10] ipv6_find_idev+0x102/0x170 [ 879.008078][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.008078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.008078][ T10] netlink_rcv_skb+0x130/0x360 [ 879.008078][ T10] netlink_unicast+0x449/0x710 [ 879.008078][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.008078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.008078][ T10] ___sys_sendmsg+0xee/0x170 [ 879.008078][ T10] __sys_sendmsg+0xcd/0x170 [ 879.008078][ T10] do_syscall_64+0xc6/0x1e0 [ 879.008078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.008078][ T10] [ 879.009970][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 879.010277][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 879.010277][ T10] netdev_get_by_index+0x5e/0x80 [ 879.010277][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.010277][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.010277][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.010277][ T10] ipv6_add_addr+0x411/0x2000 [ 879.010277][ T10] inet6_addr_add+0x30e/0xa40 [ 879.010277][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.010277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.010277][ T10] netlink_rcv_skb+0x130/0x360 [ 879.010277][ T10] netlink_unicast+0x449/0x710 [ 879.010277][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.010277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.010277][ T10] ___sys_sendmsg+0xee/0x170 [ 879.010277][ T10] __sys_sendmsg+0xcd/0x170 [ 879.010277][ T10] do_syscall_64+0xc6/0x1e0 [ 879.010277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.010277][ T10] [ 879.012484][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 879.012484][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.012484][ T10] ipv6_find_idev+0x102/0x170 [ 879.012484][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.012484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.012484][ T10] netlink_rcv_skb+0x130/0x360 [ 879.012484][ T10] netlink_unicast+0x449/0x710 [ 879.012484][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.012484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.012484][ T10] ___sys_sendmsg+0xee/0x170 [ 879.012484][ T10] __sys_sendmsg+0xcd/0x170 [ 879.012484][ T10] do_syscall_64+0xc6/0x1e0 [ 879.012484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.012484][ T10] [ 879.014199][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 879.014199][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.014199][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.014199][ T10] ipv6_find_idev+0x102/0x170 [ 879.014199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.014199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.014199][ T10] netlink_rcv_skb+0x130/0x360 [ 879.014199][ T10] netlink_unicast+0x449/0x710 [ 879.014199][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.014199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.014199][ T10] ___sys_sendmsg+0xee/0x170 [ 879.014199][ T10] __sys_sendmsg+0xcd/0x170 [ 879.014199][ T10] do_syscall_64+0xc6/0x1e0 [ 879.014199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.014199][ T10] [ 879.016097][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 879.016384][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 879.016384][ T10] netdev_get_by_index+0x5e/0x80 [ 879.016384][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.016384][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.016384][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.016384][ T10] ipv6_add_addr+0x411/0x2000 [ 879.016384][ T10] inet6_addr_add+0x30e/0xa40 [ 879.016384][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.016384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.016384][ T10] netlink_rcv_skb+0x130/0x360 [ 879.016384][ T10] netlink_unicast+0x449/0x710 [ 879.016384][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.016384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.016384][ T10] ___sys_sendmsg+0xee/0x170 [ 879.016384][ T10] __sys_sendmsg+0xcd/0x170 [ 879.016384][ T10] do_syscall_64+0xc6/0x1e0 [ 879.016384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.016384][ T10] [ 879.018741][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 879.018741][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.018741][ T10] ipv6_find_idev+0x102/0x170 [ 879.018741][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.018741][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.018741][ T10] netlink_rcv_skb+0x130/0x360 [ 879.018741][ T10] netlink_unicast+0x449/0x710 [ 879.018741][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.018741][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.018741][ T10] ___sys_sendmsg+0xee/0x170 [ 879.018741][ T10] __sys_sendmsg+0xcd/0x170 [ 879.018741][ T10] do_syscall_64+0xc6/0x1e0 [ 879.018741][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.018741][ T10] [ 879.020652][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 879.020652][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.020652][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.020652][ T10] ipv6_find_idev+0x102/0x170 [ 879.020652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.020652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.020652][ T10] netlink_rcv_skb+0x130/0x360 [ 879.020652][ T10] netlink_unicast+0x449/0x710 [ 879.020652][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.020652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.020652][ T10] ___sys_sendmsg+0xee/0x170 [ 879.020652][ T10] __sys_sendmsg+0xcd/0x170 [ 879.020652][ T10] do_syscall_64+0xc6/0x1e0 [ 879.020652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.020652][ T10] [ 879.022656][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 879.023009][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 879.023009][ T10] netdev_get_by_index+0x5e/0x80 [ 879.023009][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.023009][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.023009][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.023009][ T10] ipv6_add_addr+0x411/0x2000 [ 879.023009][ T10] inet6_addr_add+0x30e/0xa40 [ 879.023009][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.023009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.023009][ T10] netlink_rcv_skb+0x130/0x360 [ 879.023009][ T10] netlink_unicast+0x449/0x710 [ 879.023009][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.023009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.023009][ T10] ___sys_sendmsg+0xee/0x170 [ 879.023009][ T10] __sys_sendmsg+0xcd/0x170 [ 879.023009][ T10] do_syscall_64+0xc6/0x1e0 [ 879.023009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.023009][ T10] [ 879.025299][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 879.025299][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.025299][ T10] ipv6_find_idev+0x102/0x170 [ 879.025299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.025299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.025299][ T10] netlink_rcv_skb+0x130/0x360 [ 879.025299][ T10] netlink_unicast+0x449/0x710 [ 879.025299][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.025299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.025299][ T10] ___sys_sendmsg+0xee/0x170 [ 879.025299][ T10] __sys_sendmsg+0xcd/0x170 [ 879.025299][ T10] do_syscall_64+0xc6/0x1e0 [ 879.025299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.025299][ T10] [ 879.027030][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 879.027030][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.027030][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.027030][ T10] ipv6_find_idev+0x102/0x170 [ 879.027030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.027030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.027030][ T10] netlink_rcv_skb+0x130/0x360 [ 879.027030][ T10] netlink_unicast+0x449/0x710 [ 879.027030][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.027030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.027030][ T10] ___sys_sendmsg+0xee/0x170 [ 879.027030][ T10] __sys_sendmsg+0xcd/0x170 [ 879.027030][ T10] do_syscall_64+0xc6/0x1e0 [ 879.027030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.027030][ T10] [ 879.029303][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 879.029594][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 879.029594][ T10] netdev_get_by_index+0x5e/0x80 [ 879.029594][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.029594][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.029594][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.029594][ T10] ipv6_add_addr+0x411/0x2000 [ 879.029594][ T10] inet6_addr_add+0x30e/0xa40 [ 879.029594][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.029594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.029594][ T10] netlink_rcv_skb+0x130/0x360 [ 879.029594][ T10] netlink_unicast+0x449/0x710 [ 879.029594][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.029594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.029594][ T10] ___sys_sendmsg+0xee/0x170 [ 879.029594][ T10] __sys_sendmsg+0xcd/0x170 [ 879.029594][ T10] do_syscall_64+0xc6/0x1e0 [ 879.029594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.029594][ T10] [ 879.031994][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 879.031994][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.031994][ T10] ipv6_find_idev+0x102/0x170 [ 879.031994][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.031994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.031994][ T10] netlink_rcv_skb+0x130/0x360 [ 879.031994][ T10] netlink_unicast+0x449/0x710 [ 879.031994][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.031994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.031994][ T10] ___sys_sendmsg+0xee/0x170 [ 879.031994][ T10] __sys_sendmsg+0xcd/0x170 [ 879.031994][ T10] do_syscall_64+0xc6/0x1e0 [ 879.031994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.031994][ T10] [ 879.033760][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 879.033760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.033760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.033760][ T10] ipv6_find_idev+0x102/0x170 [ 879.033760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.033760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.033760][ T10] netlink_rcv_skb+0x130/0x360 [ 879.033760][ T10] netlink_unicast+0x449/0x710 [ 879.033760][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.033760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.033760][ T10] ___sys_sendmsg+0xee/0x170 [ 879.033760][ T10] __sys_sendmsg+0xcd/0x170 [ 879.033760][ T10] do_syscall_64+0xc6/0x1e0 [ 879.033760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.033760][ T10] [ 879.035821][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 879.036105][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 879.036105][ T10] netdev_get_by_index+0x5e/0x80 [ 879.036105][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.036105][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.036105][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.036105][ T10] ipv6_add_addr+0x411/0x2000 [ 879.036105][ T10] inet6_addr_add+0x30e/0xa40 [ 879.036105][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.036105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.036105][ T10] netlink_rcv_skb+0x130/0x360 [ 879.036105][ T10] netlink_unicast+0x449/0x710 [ 879.036105][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.036105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.036105][ T10] ___sys_sendmsg+0xee/0x170 [ 879.036105][ T10] __sys_sendmsg+0xcd/0x170 [ 879.036105][ T10] do_syscall_64+0xc6/0x1e0 [ 879.036105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.036105][ T10] [ 879.038448][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 879.038448][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.038448][ T10] ipv6_find_idev+0x102/0x170 [ 879.038448][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.038448][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.038448][ T10] netlink_rcv_skb+0x130/0x360 [ 879.038448][ T10] netlink_unicast+0x449/0x710 [ 879.038448][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.038448][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.038448][ T10] ___sys_sendmsg+0xee/0x170 [ 879.038448][ T10] __sys_sendmsg+0xcd/0x170 [ 879.038448][ T10] do_syscall_64+0xc6/0x1e0 [ 879.038448][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.038448][ T10] [ 879.040161][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 879.040161][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.040161][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.040161][ T10] ipv6_find_idev+0x102/0x170 [ 879.040161][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.040161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.040161][ T10] netlink_rcv_skb+0x130/0x360 [ 879.040161][ T10] netlink_unicast+0x449/0x710 [ 879.040161][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.040161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.040161][ T10] ___sys_sendmsg+0xee/0x170 [ 879.040161][ T10] __sys_sendmsg+0xcd/0x170 [ 879.040161][ T10] do_syscall_64+0xc6/0x1e0 [ 879.040161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.040161][ T10] [ 879.042210][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 879.042503][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 879.042503][ T10] netdev_get_by_index+0x5e/0x80 [ 879.042503][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.042503][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.042503][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.042503][ T10] ipv6_add_addr+0x411/0x2000 [ 879.042503][ T10] inet6_addr_add+0x30e/0xa40 [ 879.042503][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.042503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.042503][ T10] netlink_rcv_skb+0x130/0x360 [ 879.042503][ T10] netlink_unicast+0x449/0x710 [ 879.042503][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.042503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.042503][ T10] ___sys_sendmsg+0xee/0x170 [ 879.042503][ T10] __sys_sendmsg+0xcd/0x170 [ 879.042503][ T10] do_syscall_64+0xc6/0x1e0 [ 879.042503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.042503][ T10] [ 879.045025][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 879.045025][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.045025][ T10] ipv6_find_idev+0x102/0x170 [ 879.045025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.045025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.045025][ T10] netlink_rcv_skb+0x130/0x360 [ 879.045025][ T10] netlink_unicast+0x449/0x710 [ 879.045025][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.045025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.045025][ T10] ___sys_sendmsg+0xee/0x170 [ 879.045025][ T10] __sys_sendmsg+0xcd/0x170 [ 879.045025][ T10] do_syscall_64+0xc6/0x1e0 [ 879.045025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.045025][ T10] [ 879.046909][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 879.046909][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.046909][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.046909][ T10] ipv6_find_idev+0x102/0x170 [ 879.046909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.046909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.046909][ T10] netlink_rcv_skb+0x130/0x360 [ 879.046909][ T10] netlink_unicast+0x449/0x710 [ 879.046909][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.046909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.046909][ T10] ___sys_sendmsg+0xee/0x170 [ 879.046909][ T10] __sys_sendmsg+0xcd/0x170 [ 879.046909][ T10] do_syscall_64+0xc6/0x1e0 [ 879.046909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.046909][ T10] [ 879.049044][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 879.049340][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 879.049340][ T10] netdev_get_by_index+0x5e/0x80 [ 879.049340][ T10] fib6_nh_init+0x3d8/0x15b0 [ 879.049340][ T10] ip6_route_info_create+0xf18/0x17d0 [ 879.049340][ T10] addrconf_f6i_alloc+0x244/0x410 [ 879.049340][ T10] ipv6_add_addr+0x411/0x2000 [ 879.049340][ T10] inet6_addr_add+0x30e/0xa40 [ 879.049340][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 879.049340][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.049340][ T10] netlink_rcv_skb+0x130/0x360 [ 879.049340][ T10] netlink_unicast+0x449/0x710 [ 879.049340][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.049340][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.049340][ T10] ___sys_sendmsg+0xee/0x170 [ 879.049340][ T10] __sys_sendmsg+0xcd/0x170 [ 879.049340][ T10] do_syscall_64+0xc6/0x1e0 [ 879.049340][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.049340][ T10] [ 879.051751][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 879.051751][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 879.051751][ T10] ipv6_find_idev+0x102/0x170 [ 879.051751][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.051751][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.051751][ T10] netlink_rcv_skb+0x130/0x360 [ 879.051751][ T10] netlink_unicast+0x449/0x710 [ 879.051751][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.051751][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.051751][ T10] ___sys_sendmsg+0xee/0x170 [ 879.051751][ T10] __sys_sendmsg+0xcd/0x170 [ 879.051751][ T10] do_syscall_64+0xc6/0x1e0 [ 879.051751][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.051751][ T10] [ 879.053700][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 879.053700][ T10] neigh_parms_alloc+0x1e5/0x510 [ 879.053700][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 879.053700][ T10] ipv6_find_idev+0x102/0x170 [ 879.053700][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 879.053700][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 879.053700][ T10] netlink_rcv_skb+0x130/0x360 [ 879.053700][ T10] netlink_unicast+0x449/0x710 [ 879.053700][ T10] netlink_sendmsg+0x723/0xbe0 [ 879.053700][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 879.053700][ T10] ___sys_sendmsg+0xee/0x170 [ 879.053700][ T10] __sys_sendmsg+0xcd/0x170 [ 879.053700][ T10] do_syscall_64+0xc6/0x1e0 [ 879.053700][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 879.053700][ T10] [ 889.179663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 889.180052][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 889.180052][ T10] netdev_get_by_index+0x5e/0x80 [ 889.180052][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.180052][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.180052][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.180052][ T10] ipv6_add_addr+0x411/0x2000 [ 889.180052][ T10] inet6_addr_add+0x30e/0xa40 [ 889.180052][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.180052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.180052][ T10] netlink_rcv_skb+0x130/0x360 [ 889.180052][ T10] netlink_unicast+0x449/0x710 [ 889.180052][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.180052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.180052][ T10] ___sys_sendmsg+0xee/0x170 [ 889.180052][ T10] __sys_sendmsg+0xcd/0x170 [ 889.180052][ T10] do_syscall_64+0xc6/0x1e0 [ 889.180052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.180052][ T10] [ 889.182123][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 889.182123][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.182123][ T10] ipv6_find_idev+0x102/0x170 [ 889.182123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.182123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.182123][ T10] netlink_rcv_skb+0x130/0x360 [ 889.182123][ T10] netlink_unicast+0x449/0x710 [ 889.182123][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.182123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.182123][ T10] ___sys_sendmsg+0xee/0x170 [ 889.182123][ T10] __sys_sendmsg+0xcd/0x170 [ 889.182123][ T10] do_syscall_64+0xc6/0x1e0 [ 889.182123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.182123][ T10] [ 889.183721][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 889.183721][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.183721][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.183721][ T10] ipv6_find_idev+0x102/0x170 [ 889.183721][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.183721][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.183721][ T10] netlink_rcv_skb+0x130/0x360 [ 889.183721][ T10] netlink_unicast+0x449/0x710 [ 889.183721][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.183721][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.183721][ T10] ___sys_sendmsg+0xee/0x170 [ 889.183721][ T10] __sys_sendmsg+0xcd/0x170 [ 889.183721][ T10] do_syscall_64+0xc6/0x1e0 [ 889.183721][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.183721][ T10] [ 889.185468][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 889.185794][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 889.185794][ T10] netdev_get_by_index+0x5e/0x80 [ 889.185794][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.185794][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.185794][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.185794][ T10] ipv6_add_addr+0x411/0x2000 [ 889.185794][ T10] inet6_addr_add+0x30e/0xa40 [ 889.185794][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.185794][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.185794][ T10] netlink_rcv_skb+0x130/0x360 [ 889.185794][ T10] netlink_unicast+0x449/0x710 [ 889.185794][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.185794][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.185794][ T10] ___sys_sendmsg+0xee/0x170 [ 889.185794][ T10] __sys_sendmsg+0xcd/0x170 [ 889.185794][ T10] do_syscall_64+0xc6/0x1e0 [ 889.185794][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.185794][ T10] [ 889.187836][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 889.187836][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.187836][ T10] ipv6_find_idev+0x102/0x170 [ 889.187836][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.187836][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.187836][ T10] netlink_rcv_skb+0x130/0x360 [ 889.187836][ T10] netlink_unicast+0x449/0x710 [ 889.187836][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.187836][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.187836][ T10] ___sys_sendmsg+0xee/0x170 [ 889.187836][ T10] __sys_sendmsg+0xcd/0x170 [ 889.187836][ T10] do_syscall_64+0xc6/0x1e0 [ 889.187836][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.187836][ T10] [ 889.189400][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 889.189400][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.189400][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.189400][ T10] ipv6_find_idev+0x102/0x170 [ 889.189400][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.189400][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.189400][ T10] netlink_rcv_skb+0x130/0x360 [ 889.189400][ T10] netlink_unicast+0x449/0x710 [ 889.189400][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.189400][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.189400][ T10] ___sys_sendmsg+0xee/0x170 [ 889.189400][ T10] __sys_sendmsg+0xcd/0x170 [ 889.189400][ T10] do_syscall_64+0xc6/0x1e0 [ 889.189400][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.189400][ T10] [ 889.191183][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 889.191465][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 889.191465][ T10] netdev_get_by_index+0x5e/0x80 [ 889.191465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.191465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.191465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.191465][ T10] ipv6_add_addr+0x411/0x2000 [ 889.191465][ T10] inet6_addr_add+0x30e/0xa40 [ 889.191465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.191465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.191465][ T10] netlink_rcv_skb+0x130/0x360 [ 889.191465][ T10] netlink_unicast+0x449/0x710 [ 889.191465][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.191465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.191465][ T10] ___sys_sendmsg+0xee/0x170 [ 889.191465][ T10] __sys_sendmsg+0xcd/0x170 [ 889.191465][ T10] do_syscall_64+0xc6/0x1e0 [ 889.191465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.191465][ T10] [ 889.193497][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 889.193497][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.193497][ T10] ipv6_find_idev+0x102/0x170 [ 889.193497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.193497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.193497][ T10] netlink_rcv_skb+0x130/0x360 [ 889.193497][ T10] netlink_unicast+0x449/0x710 [ 889.193497][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.193497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.193497][ T10] ___sys_sendmsg+0xee/0x170 [ 889.193497][ T10] __sys_sendmsg+0xcd/0x170 [ 889.193497][ T10] do_syscall_64+0xc6/0x1e0 [ 889.193497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.193497][ T10] [ 889.195060][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 889.195060][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.195060][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.195060][ T10] ipv6_find_idev+0x102/0x170 [ 889.195060][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.195060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.195060][ T10] netlink_rcv_skb+0x130/0x360 [ 889.195060][ T10] netlink_unicast+0x449/0x710 [ 889.195060][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.195060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.195060][ T10] ___sys_sendmsg+0xee/0x170 [ 889.195060][ T10] __sys_sendmsg+0xcd/0x170 [ 889.195060][ T10] do_syscall_64+0xc6/0x1e0 [ 889.195060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.195060][ T10] [ 889.196771][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 889.197043][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 889.197043][ T10] netdev_get_by_index+0x5e/0x80 [ 889.197043][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.197043][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.197043][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.197043][ T10] ipv6_add_addr+0x411/0x2000 [ 889.197043][ T10] inet6_addr_add+0x30e/0xa40 [ 889.197043][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.197043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.197043][ T10] netlink_rcv_skb+0x130/0x360 [ 889.197043][ T10] netlink_unicast+0x449/0x710 [ 889.197043][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.197043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.197043][ T10] ___sys_sendmsg+0xee/0x170 [ 889.197043][ T10] __sys_sendmsg+0xcd/0x170 [ 889.197043][ T10] do_syscall_64+0xc6/0x1e0 [ 889.197043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.197043][ T10] [ 889.199076][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 889.199076][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.199076][ T10] ipv6_find_idev+0x102/0x170 [ 889.199076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.199076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.199076][ T10] netlink_rcv_skb+0x130/0x360 [ 889.199076][ T10] netlink_unicast+0x449/0x710 [ 889.199076][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.199076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.199076][ T10] ___sys_sendmsg+0xee/0x170 [ 889.199076][ T10] __sys_sendmsg+0xcd/0x170 [ 889.199076][ T10] do_syscall_64+0xc6/0x1e0 [ 889.199076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.199076][ T10] [ 889.200633][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 889.200633][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.200633][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.200633][ T10] ipv6_find_idev+0x102/0x170 [ 889.200633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.200633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.200633][ T10] netlink_rcv_skb+0x130/0x360 [ 889.200633][ T10] netlink_unicast+0x449/0x710 [ 889.200633][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.200633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.200633][ T10] ___sys_sendmsg+0xee/0x170 [ 889.200633][ T10] __sys_sendmsg+0xcd/0x170 [ 889.200633][ T10] do_syscall_64+0xc6/0x1e0 [ 889.200633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.200633][ T10] [ 889.202479][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 889.202771][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 889.202771][ T10] netdev_get_by_index+0x5e/0x80 [ 889.202771][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.202771][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.202771][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.202771][ T10] ipv6_add_addr+0x411/0x2000 [ 889.202771][ T10] inet6_addr_add+0x30e/0xa40 [ 889.202771][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.202771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.202771][ T10] netlink_rcv_skb+0x130/0x360 [ 889.202771][ T10] netlink_unicast+0x449/0x710 [ 889.202771][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.202771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.202771][ T10] ___sys_sendmsg+0xee/0x170 [ 889.202771][ T10] __sys_sendmsg+0xcd/0x170 [ 889.202771][ T10] do_syscall_64+0xc6/0x1e0 [ 889.202771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.202771][ T10] [ 889.204789][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 889.204789][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.204789][ T10] ipv6_find_idev+0x102/0x170 [ 889.204789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.204789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.204789][ T10] netlink_rcv_skb+0x130/0x360 [ 889.204789][ T10] netlink_unicast+0x449/0x710 [ 889.204789][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.204789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.204789][ T10] ___sys_sendmsg+0xee/0x170 [ 889.204789][ T10] __sys_sendmsg+0xcd/0x170 [ 889.204789][ T10] do_syscall_64+0xc6/0x1e0 [ 889.204789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.204789][ T10] [ 889.206429][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 889.206429][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.206429][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.206429][ T10] ipv6_find_idev+0x102/0x170 [ 889.206429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.206429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.206429][ T10] netlink_rcv_skb+0x130/0x360 [ 889.206429][ T10] netlink_unicast+0x449/0x710 [ 889.206429][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.206429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.206429][ T10] ___sys_sendmsg+0xee/0x170 [ 889.206429][ T10] __sys_sendmsg+0xcd/0x170 [ 889.206429][ T10] do_syscall_64+0xc6/0x1e0 [ 889.206429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.206429][ T10] [ 889.208347][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 889.208629][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 889.208629][ T10] netdev_get_by_index+0x5e/0x80 [ 889.208629][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.208629][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.208629][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.208629][ T10] ipv6_add_addr+0x411/0x2000 [ 889.208629][ T10] inet6_addr_add+0x30e/0xa40 [ 889.208629][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.208629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.208629][ T10] netlink_rcv_skb+0x130/0x360 [ 889.208629][ T10] netlink_unicast+0x449/0x710 [ 889.208629][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.208629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.208629][ T10] ___sys_sendmsg+0xee/0x170 [ 889.208629][ T10] __sys_sendmsg+0xcd/0x170 [ 889.208629][ T10] do_syscall_64+0xc6/0x1e0 [ 889.208629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.208629][ T10] [ 889.210774][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 889.210774][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.210774][ T10] ipv6_find_idev+0x102/0x170 [ 889.210774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.210774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.210774][ T10] netlink_rcv_skb+0x130/0x360 [ 889.210774][ T10] netlink_unicast+0x449/0x710 [ 889.210774][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.210774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.210774][ T10] ___sys_sendmsg+0xee/0x170 [ 889.210774][ T10] __sys_sendmsg+0xcd/0x170 [ 889.210774][ T10] do_syscall_64+0xc6/0x1e0 [ 889.210774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.210774][ T10] [ 889.212534][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 889.212534][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.212534][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.212534][ T10] ipv6_find_idev+0x102/0x170 [ 889.212534][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.212534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.212534][ T10] netlink_rcv_skb+0x130/0x360 [ 889.212534][ T10] netlink_unicast+0x449/0x710 [ 889.212534][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.212534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.212534][ T10] ___sys_sendmsg+0xee/0x170 [ 889.212534][ T10] __sys_sendmsg+0xcd/0x170 [ 889.212534][ T10] do_syscall_64+0xc6/0x1e0 [ 889.212534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.212534][ T10] [ 889.214881][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 889.215162][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 889.215162][ T10] netdev_get_by_index+0x5e/0x80 [ 889.215162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.215162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.215162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.215162][ T10] ipv6_add_addr+0x411/0x2000 [ 889.215162][ T10] inet6_addr_add+0x30e/0xa40 [ 889.215162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.215162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.215162][ T10] netlink_rcv_skb+0x130/0x360 [ 889.215162][ T10] netlink_unicast+0x449/0x710 [ 889.215162][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.215162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.215162][ T10] ___sys_sendmsg+0xee/0x170 [ 889.215162][ T10] __sys_sendmsg+0xcd/0x170 [ 889.215162][ T10] do_syscall_64+0xc6/0x1e0 [ 889.215162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.215162][ T10] [ 889.217202][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 889.217202][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.217202][ T10] ipv6_find_idev+0x102/0x170 [ 889.217202][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.217202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.217202][ T10] netlink_rcv_skb+0x130/0x360 [ 889.217202][ T10] netlink_unicast+0x449/0x710 [ 889.217202][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.217202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.217202][ T10] ___sys_sendmsg+0xee/0x170 [ 889.217202][ T10] __sys_sendmsg+0xcd/0x170 [ 889.217202][ T10] do_syscall_64+0xc6/0x1e0 [ 889.217202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.217202][ T10] [ 889.218883][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 889.218883][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.218883][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.218883][ T10] ipv6_find_idev+0x102/0x170 [ 889.218883][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.218883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.218883][ T10] netlink_rcv_skb+0x130/0x360 [ 889.218883][ T10] netlink_unicast+0x449/0x710 [ 889.218883][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.218883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.218883][ T10] ___sys_sendmsg+0xee/0x170 [ 889.218883][ T10] __sys_sendmsg+0xcd/0x170 [ 889.218883][ T10] do_syscall_64+0xc6/0x1e0 [ 889.218883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.218883][ T10] [ 889.220855][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 889.221136][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 889.221136][ T10] netdev_get_by_index+0x5e/0x80 [ 889.221136][ T10] fib6_nh_init+0x3d8/0x15b0 [ 889.221136][ T10] ip6_route_info_create+0xf18/0x17d0 [ 889.221136][ T10] addrconf_f6i_alloc+0x244/0x410 [ 889.221136][ T10] ipv6_add_addr+0x411/0x2000 [ 889.221136][ T10] inet6_addr_add+0x30e/0xa40 [ 889.221136][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 889.221136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.221136][ T10] netlink_rcv_skb+0x130/0x360 [ 889.221136][ T10] netlink_unicast+0x449/0x710 [ 889.221136][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.221136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.221136][ T10] ___sys_sendmsg+0xee/0x170 [ 889.221136][ T10] __sys_sendmsg+0xcd/0x170 [ 889.221136][ T10] do_syscall_64+0xc6/0x1e0 [ 889.221136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.221136][ T10] [ 889.223287][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 889.223287][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 889.223287][ T10] ipv6_find_idev+0x102/0x170 [ 889.223287][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.223287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.223287][ T10] netlink_rcv_skb+0x130/0x360 [ 889.223287][ T10] netlink_unicast+0x449/0x710 [ 889.223287][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.223287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.223287][ T10] ___sys_sendmsg+0xee/0x170 [ 889.223287][ T10] __sys_sendmsg+0xcd/0x170 [ 889.223287][ T10] do_syscall_64+0xc6/0x1e0 [ 889.223287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.223287][ T10] [ 889.225021][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 889.225021][ T10] neigh_parms_alloc+0x1e5/0x510 [ 889.225021][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 889.225021][ T10] ipv6_find_idev+0x102/0x170 [ 889.225021][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 889.225021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 889.225021][ T10] netlink_rcv_skb+0x130/0x360 [ 889.225021][ T10] netlink_unicast+0x449/0x710 [ 889.225021][ T10] netlink_sendmsg+0x723/0xbe0 [ 889.225021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 889.225021][ T10] ___sys_sendmsg+0xee/0x170 [ 889.225021][ T10] __sys_sendmsg+0xcd/0x170 [ 889.225021][ T10] do_syscall_64+0xc6/0x1e0 [ 889.225021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 889.225021][ T10] [ 899.331761][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 899.332183][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 899.332183][ T10] netdev_get_by_index+0x5e/0x80 [ 899.332183][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.332183][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.332183][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.332183][ T10] ipv6_add_addr+0x411/0x2000 [ 899.332183][ T10] inet6_addr_add+0x30e/0xa40 [ 899.332183][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.332183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.332183][ T10] netlink_rcv_skb+0x130/0x360 [ 899.332183][ T10] netlink_unicast+0x449/0x710 [ 899.332183][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.332183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.332183][ T10] ___sys_sendmsg+0xee/0x170 [ 899.332183][ T10] __sys_sendmsg+0xcd/0x170 [ 899.332183][ T10] do_syscall_64+0xc6/0x1e0 [ 899.332183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.332183][ T10] [ 899.334182][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 899.334182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.334182][ T10] ipv6_find_idev+0x102/0x170 [ 899.334182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.334182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.334182][ T10] netlink_rcv_skb+0x130/0x360 [ 899.334182][ T10] netlink_unicast+0x449/0x710 [ 899.334182][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.334182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.334182][ T10] ___sys_sendmsg+0xee/0x170 [ 899.334182][ T10] __sys_sendmsg+0xcd/0x170 [ 899.334182][ T10] do_syscall_64+0xc6/0x1e0 [ 899.334182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.334182][ T10] [ 899.335706][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 899.335706][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.335706][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.335706][ T10] ipv6_find_idev+0x102/0x170 [ 899.335706][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.335706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.335706][ T10] netlink_rcv_skb+0x130/0x360 [ 899.335706][ T10] netlink_unicast+0x449/0x710 [ 899.335706][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.335706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.335706][ T10] ___sys_sendmsg+0xee/0x170 [ 899.335706][ T10] __sys_sendmsg+0xcd/0x170 [ 899.335706][ T10] do_syscall_64+0xc6/0x1e0 [ 899.335706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.335706][ T10] [ 899.337373][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 899.337649][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 899.337649][ T10] netdev_get_by_index+0x5e/0x80 [ 899.337649][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.337649][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.337649][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.337649][ T10] ipv6_add_addr+0x411/0x2000 [ 899.337649][ T10] inet6_addr_add+0x30e/0xa40 [ 899.337649][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.337649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.337649][ T10] netlink_rcv_skb+0x130/0x360 [ 899.337649][ T10] netlink_unicast+0x449/0x710 [ 899.337649][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.337649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.337649][ T10] ___sys_sendmsg+0xee/0x170 [ 899.337649][ T10] __sys_sendmsg+0xcd/0x170 [ 899.337649][ T10] do_syscall_64+0xc6/0x1e0 [ 899.337649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.337649][ T10] [ 899.339618][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 899.339618][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.339618][ T10] ipv6_find_idev+0x102/0x170 [ 899.339618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.339618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.339618][ T10] netlink_rcv_skb+0x130/0x360 [ 899.339618][ T10] netlink_unicast+0x449/0x710 [ 899.339618][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.339618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.339618][ T10] ___sys_sendmsg+0xee/0x170 [ 899.339618][ T10] __sys_sendmsg+0xcd/0x170 [ 899.339618][ T10] do_syscall_64+0xc6/0x1e0 [ 899.339618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.339618][ T10] [ 899.341145][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 899.341145][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.341145][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.341145][ T10] ipv6_find_idev+0x102/0x170 [ 899.341145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.341145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.341145][ T10] netlink_rcv_skb+0x130/0x360 [ 899.341145][ T10] netlink_unicast+0x449/0x710 [ 899.341145][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.341145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.341145][ T10] ___sys_sendmsg+0xee/0x170 [ 899.341145][ T10] __sys_sendmsg+0xcd/0x170 [ 899.341145][ T10] do_syscall_64+0xc6/0x1e0 [ 899.341145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.341145][ T10] [ 899.342798][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 899.343060][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 899.343060][ T10] netdev_get_by_index+0x5e/0x80 [ 899.343060][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.343060][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.343060][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.343060][ T10] ipv6_add_addr+0x411/0x2000 [ 899.343060][ T10] inet6_addr_add+0x30e/0xa40 [ 899.343060][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.343060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.343060][ T10] netlink_rcv_skb+0x130/0x360 [ 899.343060][ T10] netlink_unicast+0x449/0x710 [ 899.343060][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.343060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.343060][ T10] ___sys_sendmsg+0xee/0x170 [ 899.343060][ T10] __sys_sendmsg+0xcd/0x170 [ 899.343060][ T10] do_syscall_64+0xc6/0x1e0 [ 899.343060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.343060][ T10] [ 899.345034][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 899.345034][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.345034][ T10] ipv6_find_idev+0x102/0x170 [ 899.345034][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.345034][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.345034][ T10] netlink_rcv_skb+0x130/0x360 [ 899.345034][ T10] netlink_unicast+0x449/0x710 [ 899.345034][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.345034][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.345034][ T10] ___sys_sendmsg+0xee/0x170 [ 899.345034][ T10] __sys_sendmsg+0xcd/0x170 [ 899.345034][ T10] do_syscall_64+0xc6/0x1e0 [ 899.345034][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.345034][ T10] [ 899.346560][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 899.346560][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.346560][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.346560][ T10] ipv6_find_idev+0x102/0x170 [ 899.346560][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.346560][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.346560][ T10] netlink_rcv_skb+0x130/0x360 [ 899.346560][ T10] netlink_unicast+0x449/0x710 [ 899.346560][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.346560][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.346560][ T10] ___sys_sendmsg+0xee/0x170 [ 899.346560][ T10] __sys_sendmsg+0xcd/0x170 [ 899.346560][ T10] do_syscall_64+0xc6/0x1e0 [ 899.346560][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.346560][ T10] [ 899.348207][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 899.348465][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 899.348465][ T10] netdev_get_by_index+0x5e/0x80 [ 899.348465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.348465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.348465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.348465][ T10] ipv6_add_addr+0x411/0x2000 [ 899.348465][ T10] inet6_addr_add+0x30e/0xa40 [ 899.348465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.348465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.348465][ T10] netlink_rcv_skb+0x130/0x360 [ 899.348465][ T10] netlink_unicast+0x449/0x710 [ 899.348465][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.348465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.348465][ T10] ___sys_sendmsg+0xee/0x170 [ 899.348465][ T10] __sys_sendmsg+0xcd/0x170 [ 899.348465][ T10] do_syscall_64+0xc6/0x1e0 [ 899.348465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.348465][ T10] [ 899.350432][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 899.350432][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.350432][ T10] ipv6_find_idev+0x102/0x170 [ 899.350432][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.350432][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.350432][ T10] netlink_rcv_skb+0x130/0x360 [ 899.350432][ T10] netlink_unicast+0x449/0x710 [ 899.350432][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.350432][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.350432][ T10] ___sys_sendmsg+0xee/0x170 [ 899.350432][ T10] __sys_sendmsg+0xcd/0x170 [ 899.350432][ T10] do_syscall_64+0xc6/0x1e0 [ 899.350432][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.350432][ T10] [ 899.351946][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 899.351946][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.351946][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.351946][ T10] ipv6_find_idev+0x102/0x170 [ 899.351946][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.351946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.351946][ T10] netlink_rcv_skb+0x130/0x360 [ 899.351946][ T10] netlink_unicast+0x449/0x710 [ 899.351946][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.351946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.351946][ T10] ___sys_sendmsg+0xee/0x170 [ 899.351946][ T10] __sys_sendmsg+0xcd/0x170 [ 899.351946][ T10] do_syscall_64+0xc6/0x1e0 [ 899.351946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.351946][ T10] [ 899.354048][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 899.354307][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 899.354307][ T10] netdev_get_by_index+0x5e/0x80 [ 899.354307][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.354307][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.354307][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.354307][ T10] ipv6_add_addr+0x411/0x2000 [ 899.354307][ T10] inet6_addr_add+0x30e/0xa40 [ 899.354307][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.354307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.354307][ T10] netlink_rcv_skb+0x130/0x360 [ 899.354307][ T10] netlink_unicast+0x449/0x710 [ 899.354307][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.354307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.354307][ T10] ___sys_sendmsg+0xee/0x170 [ 899.354307][ T10] __sys_sendmsg+0xcd/0x170 [ 899.354307][ T10] do_syscall_64+0xc6/0x1e0 [ 899.354307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.354307][ T10] [ 899.356287][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 899.356287][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.356287][ T10] ipv6_find_idev+0x102/0x170 [ 899.356287][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.356287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.356287][ T10] netlink_rcv_skb+0x130/0x360 [ 899.356287][ T10] netlink_unicast+0x449/0x710 [ 899.356287][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.356287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.356287][ T10] ___sys_sendmsg+0xee/0x170 [ 899.356287][ T10] __sys_sendmsg+0xcd/0x170 [ 899.356287][ T10] do_syscall_64+0xc6/0x1e0 [ 899.356287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.356287][ T10] [ 899.357859][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 899.357859][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.357859][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.357859][ T10] ipv6_find_idev+0x102/0x170 [ 899.357859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.357859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.357859][ T10] netlink_rcv_skb+0x130/0x360 [ 899.357859][ T10] netlink_unicast+0x449/0x710 [ 899.357859][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.357859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.357859][ T10] ___sys_sendmsg+0xee/0x170 [ 899.357859][ T10] __sys_sendmsg+0xcd/0x170 [ 899.357859][ T10] do_syscall_64+0xc6/0x1e0 [ 899.357859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.357859][ T10] [ 899.359800][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 899.360063][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 899.360063][ T10] netdev_get_by_index+0x5e/0x80 [ 899.360063][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.360063][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.360063][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.360063][ T10] ipv6_add_addr+0x411/0x2000 [ 899.360063][ T10] inet6_addr_add+0x30e/0xa40 [ 899.360063][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.360063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.360063][ T10] netlink_rcv_skb+0x130/0x360 [ 899.360063][ T10] netlink_unicast+0x449/0x710 [ 899.360063][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.360063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.360063][ T10] ___sys_sendmsg+0xee/0x170 [ 899.360063][ T10] __sys_sendmsg+0xcd/0x170 [ 899.360063][ T10] do_syscall_64+0xc6/0x1e0 [ 899.360063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.360063][ T10] [ 899.362092][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 899.362092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.362092][ T10] ipv6_find_idev+0x102/0x170 [ 899.362092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.362092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.362092][ T10] netlink_rcv_skb+0x130/0x360 [ 899.362092][ T10] netlink_unicast+0x449/0x710 [ 899.362092][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.362092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.362092][ T10] ___sys_sendmsg+0xee/0x170 [ 899.362092][ T10] __sys_sendmsg+0xcd/0x170 [ 899.362092][ T10] do_syscall_64+0xc6/0x1e0 [ 899.362092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.362092][ T10] [ 899.363722][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 899.363722][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.363722][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.363722][ T10] ipv6_find_idev+0x102/0x170 [ 899.363722][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.363722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.363722][ T10] netlink_rcv_skb+0x130/0x360 [ 899.363722][ T10] netlink_unicast+0x449/0x710 [ 899.363722][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.363722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.363722][ T10] ___sys_sendmsg+0xee/0x170 [ 899.363722][ T10] __sys_sendmsg+0xcd/0x170 [ 899.363722][ T10] do_syscall_64+0xc6/0x1e0 [ 899.363722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.363722][ T10] [ 899.365658][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 899.365925][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 899.365925][ T10] netdev_get_by_index+0x5e/0x80 [ 899.365925][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.365925][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.365925][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.365925][ T10] ipv6_add_addr+0x411/0x2000 [ 899.365925][ T10] inet6_addr_add+0x30e/0xa40 [ 899.365925][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.365925][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.365925][ T10] netlink_rcv_skb+0x130/0x360 [ 899.365925][ T10] netlink_unicast+0x449/0x710 [ 899.365925][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.365925][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.365925][ T10] ___sys_sendmsg+0xee/0x170 [ 899.365925][ T10] __sys_sendmsg+0xcd/0x170 [ 899.365925][ T10] do_syscall_64+0xc6/0x1e0 [ 899.365925][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.365925][ T10] [ 899.368146][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 899.368146][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.368146][ T10] ipv6_find_idev+0x102/0x170 [ 899.368146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.368146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.368146][ T10] netlink_rcv_skb+0x130/0x360 [ 899.368146][ T10] netlink_unicast+0x449/0x710 [ 899.368146][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.368146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.368146][ T10] ___sys_sendmsg+0xee/0x170 [ 899.368146][ T10] __sys_sendmsg+0xcd/0x170 [ 899.368146][ T10] do_syscall_64+0xc6/0x1e0 [ 899.368146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.368146][ T10] [ 899.369793][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 899.369793][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.369793][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.369793][ T10] ipv6_find_idev+0x102/0x170 [ 899.369793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.369793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.369793][ T10] netlink_rcv_skb+0x130/0x360 [ 899.369793][ T10] netlink_unicast+0x449/0x710 [ 899.369793][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.369793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.369793][ T10] ___sys_sendmsg+0xee/0x170 [ 899.369793][ T10] __sys_sendmsg+0xcd/0x170 [ 899.369793][ T10] do_syscall_64+0xc6/0x1e0 [ 899.369793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.369793][ T10] [ 899.371737][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 899.372046][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 899.372046][ T10] netdev_get_by_index+0x5e/0x80 [ 899.372046][ T10] fib6_nh_init+0x3d8/0x15b0 [ 899.372046][ T10] ip6_route_info_create+0xf18/0x17d0 [ 899.372046][ T10] addrconf_f6i_alloc+0x244/0x410 [ 899.372046][ T10] ipv6_add_addr+0x411/0x2000 [ 899.372046][ T10] inet6_addr_add+0x30e/0xa40 [ 899.372046][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 899.372046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.372046][ T10] netlink_rcv_skb+0x130/0x360 [ 899.372046][ T10] netlink_unicast+0x449/0x710 [ 899.372046][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.372046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.372046][ T10] ___sys_sendmsg+0xee/0x170 [ 899.372046][ T10] __sys_sendmsg+0xcd/0x170 [ 899.372046][ T10] do_syscall_64+0xc6/0x1e0 [ 899.372046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.372046][ T10] [ 899.374072][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 899.374072][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 899.374072][ T10] ipv6_find_idev+0x102/0x170 [ 899.374072][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.374072][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.374072][ T10] netlink_rcv_skb+0x130/0x360 [ 899.374072][ T10] netlink_unicast+0x449/0x710 [ 899.374072][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.374072][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.374072][ T10] ___sys_sendmsg+0xee/0x170 [ 899.374072][ T10] __sys_sendmsg+0xcd/0x170 [ 899.374072][ T10] do_syscall_64+0xc6/0x1e0 [ 899.374072][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.374072][ T10] [ 899.375715][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 899.375715][ T10] neigh_parms_alloc+0x1e5/0x510 [ 899.375715][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 899.375715][ T10] ipv6_find_idev+0x102/0x170 [ 899.375715][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 899.375715][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 899.375715][ T10] netlink_rcv_skb+0x130/0x360 [ 899.375715][ T10] netlink_unicast+0x449/0x710 [ 899.375715][ T10] netlink_sendmsg+0x723/0xbe0 [ 899.375715][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 899.375715][ T10] ___sys_sendmsg+0xee/0x170 [ 899.375715][ T10] __sys_sendmsg+0xcd/0x170 [ 899.375715][ T10] do_syscall_64+0xc6/0x1e0 [ 899.375715][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 899.375715][ T10] [ 909.524662][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 909.525017][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 909.525017][ T10] netdev_get_by_index+0x5e/0x80 [ 909.525017][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.525017][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.525017][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.525017][ T10] ipv6_add_addr+0x411/0x2000 [ 909.525017][ T10] inet6_addr_add+0x30e/0xa40 [ 909.525017][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.525017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.525017][ T10] netlink_rcv_skb+0x130/0x360 [ 909.525017][ T10] netlink_unicast+0x449/0x710 [ 909.525017][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.525017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.525017][ T10] ___sys_sendmsg+0xee/0x170 [ 909.525017][ T10] __sys_sendmsg+0xcd/0x170 [ 909.525017][ T10] do_syscall_64+0xc6/0x1e0 [ 909.525017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.525017][ T10] [ 909.527163][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 909.527163][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.527163][ T10] ipv6_find_idev+0x102/0x170 [ 909.527163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.527163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.527163][ T10] netlink_rcv_skb+0x130/0x360 [ 909.527163][ T10] netlink_unicast+0x449/0x710 [ 909.527163][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.527163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.527163][ T10] ___sys_sendmsg+0xee/0x170 [ 909.527163][ T10] __sys_sendmsg+0xcd/0x170 [ 909.527163][ T10] do_syscall_64+0xc6/0x1e0 [ 909.527163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.527163][ T10] [ 909.528809][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 909.528809][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.528809][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.528809][ T10] ipv6_find_idev+0x102/0x170 [ 909.528809][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.528809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.528809][ T10] netlink_rcv_skb+0x130/0x360 [ 909.528809][ T10] netlink_unicast+0x449/0x710 [ 909.528809][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.528809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.528809][ T10] ___sys_sendmsg+0xee/0x170 [ 909.528809][ T10] __sys_sendmsg+0xcd/0x170 [ 909.528809][ T10] do_syscall_64+0xc6/0x1e0 [ 909.528809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.528809][ T10] [ 909.530537][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 909.530822][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 909.530822][ T10] netdev_get_by_index+0x5e/0x80 [ 909.530822][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.530822][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.530822][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.530822][ T10] ipv6_add_addr+0x411/0x2000 [ 909.530822][ T10] inet6_addr_add+0x30e/0xa40 [ 909.530822][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.530822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.530822][ T10] netlink_rcv_skb+0x130/0x360 [ 909.530822][ T10] netlink_unicast+0x449/0x710 [ 909.530822][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.530822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.530822][ T10] ___sys_sendmsg+0xee/0x170 [ 909.530822][ T10] __sys_sendmsg+0xcd/0x170 [ 909.530822][ T10] do_syscall_64+0xc6/0x1e0 [ 909.530822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.530822][ T10] [ 909.532834][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 909.532834][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.532834][ T10] ipv6_find_idev+0x102/0x170 [ 909.532834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.532834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.532834][ T10] netlink_rcv_skb+0x130/0x360 [ 909.532834][ T10] netlink_unicast+0x449/0x710 [ 909.532834][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.532834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.532834][ T10] ___sys_sendmsg+0xee/0x170 [ 909.532834][ T10] __sys_sendmsg+0xcd/0x170 [ 909.532834][ T10] do_syscall_64+0xc6/0x1e0 [ 909.532834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.532834][ T10] [ 909.534411][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 909.534411][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.534411][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.534411][ T10] ipv6_find_idev+0x102/0x170 [ 909.534411][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.534411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.534411][ T10] netlink_rcv_skb+0x130/0x360 [ 909.534411][ T10] netlink_unicast+0x449/0x710 [ 909.534411][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.534411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.534411][ T10] ___sys_sendmsg+0xee/0x170 [ 909.534411][ T10] __sys_sendmsg+0xcd/0x170 [ 909.534411][ T10] do_syscall_64+0xc6/0x1e0 [ 909.534411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.534411][ T10] [ 909.536181][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 909.536459][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 909.536459][ T10] netdev_get_by_index+0x5e/0x80 [ 909.536459][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.536459][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.536459][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.536459][ T10] ipv6_add_addr+0x411/0x2000 [ 909.536459][ T10] inet6_addr_add+0x30e/0xa40 [ 909.536459][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.536459][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.536459][ T10] netlink_rcv_skb+0x130/0x360 [ 909.536459][ T10] netlink_unicast+0x449/0x710 [ 909.536459][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.536459][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.536459][ T10] ___sys_sendmsg+0xee/0x170 [ 909.536459][ T10] __sys_sendmsg+0xcd/0x170 [ 909.536459][ T10] do_syscall_64+0xc6/0x1e0 [ 909.536459][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.536459][ T10] [ 909.538662][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 909.538662][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.538662][ T10] ipv6_find_idev+0x102/0x170 [ 909.538662][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.538662][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.538662][ T10] netlink_rcv_skb+0x130/0x360 [ 909.538662][ T10] netlink_unicast+0x449/0x710 [ 909.538662][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.538662][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.538662][ T10] ___sys_sendmsg+0xee/0x170 [ 909.538662][ T10] __sys_sendmsg+0xcd/0x170 [ 909.538662][ T10] do_syscall_64+0xc6/0x1e0 [ 909.538662][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.538662][ T10] [ 909.540262][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 909.540262][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.540262][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.540262][ T10] ipv6_find_idev+0x102/0x170 [ 909.540262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.540262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.540262][ T10] netlink_rcv_skb+0x130/0x360 [ 909.540262][ T10] netlink_unicast+0x449/0x710 [ 909.540262][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.540262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.540262][ T10] ___sys_sendmsg+0xee/0x170 [ 909.540262][ T10] __sys_sendmsg+0xcd/0x170 [ 909.540262][ T10] do_syscall_64+0xc6/0x1e0 [ 909.540262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.540262][ T10] [ 909.542534][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 909.543170][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 909.543170][ T10] netdev_get_by_index+0x5e/0x80 [ 909.543170][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.543170][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.543170][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.543170][ T10] ipv6_add_addr+0x411/0x2000 [ 909.543170][ T10] inet6_addr_add+0x30e/0xa40 [ 909.543170][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.543170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.543170][ T10] netlink_rcv_skb+0x130/0x360 [ 909.543170][ T10] netlink_unicast+0x449/0x710 [ 909.543170][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.543170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.543170][ T10] ___sys_sendmsg+0xee/0x170 [ 909.543170][ T10] __sys_sendmsg+0xcd/0x170 [ 909.543170][ T10] do_syscall_64+0xc6/0x1e0 [ 909.543170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.543170][ T10] [ 909.545282][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 909.545282][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.545282][ T10] ipv6_find_idev+0x102/0x170 [ 909.545282][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.545282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.545282][ T10] netlink_rcv_skb+0x130/0x360 [ 909.545282][ T10] netlink_unicast+0x449/0x710 [ 909.545282][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.545282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.545282][ T10] ___sys_sendmsg+0xee/0x170 [ 909.545282][ T10] __sys_sendmsg+0xcd/0x170 [ 909.545282][ T10] do_syscall_64+0xc6/0x1e0 [ 909.545282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.545282][ T10] [ 909.546906][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 909.546906][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.546906][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.546906][ T10] ipv6_find_idev+0x102/0x170 [ 909.546906][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.546906][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.546906][ T10] netlink_rcv_skb+0x130/0x360 [ 909.546906][ T10] netlink_unicast+0x449/0x710 [ 909.546906][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.546906][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.546906][ T10] ___sys_sendmsg+0xee/0x170 [ 909.546906][ T10] __sys_sendmsg+0xcd/0x170 [ 909.546906][ T10] do_syscall_64+0xc6/0x1e0 [ 909.546906][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.546906][ T10] [ 909.548939][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 909.549235][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 909.549235][ T10] netdev_get_by_index+0x5e/0x80 [ 909.549235][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.549235][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.549235][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.549235][ T10] ipv6_add_addr+0x411/0x2000 [ 909.549235][ T10] inet6_addr_add+0x30e/0xa40 [ 909.549235][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.549235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.549235][ T10] netlink_rcv_skb+0x130/0x360 [ 909.549235][ T10] netlink_unicast+0x449/0x710 [ 909.549235][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.549235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.549235][ T10] ___sys_sendmsg+0xee/0x170 [ 909.549235][ T10] __sys_sendmsg+0xcd/0x170 [ 909.549235][ T10] do_syscall_64+0xc6/0x1e0 [ 909.549235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.549235][ T10] [ 909.551404][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 909.551404][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.551404][ T10] ipv6_find_idev+0x102/0x170 [ 909.551404][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.551404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.551404][ T10] netlink_rcv_skb+0x130/0x360 [ 909.551404][ T10] netlink_unicast+0x449/0x710 [ 909.551404][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.551404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.551404][ T10] ___sys_sendmsg+0xee/0x170 [ 909.551404][ T10] __sys_sendmsg+0xcd/0x170 [ 909.551404][ T10] do_syscall_64+0xc6/0x1e0 [ 909.551404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.551404][ T10] [ 909.553089][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 909.553089][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.553089][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.553089][ T10] ipv6_find_idev+0x102/0x170 [ 909.553089][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.553089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.553089][ T10] netlink_rcv_skb+0x130/0x360 [ 909.553089][ T10] netlink_unicast+0x449/0x710 [ 909.553089][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.553089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.553089][ T10] ___sys_sendmsg+0xee/0x170 [ 909.553089][ T10] __sys_sendmsg+0xcd/0x170 [ 909.553089][ T10] do_syscall_64+0xc6/0x1e0 [ 909.553089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.553089][ T10] [ 909.554975][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 909.555295][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 909.555295][ T10] netdev_get_by_index+0x5e/0x80 [ 909.555295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.555295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.555295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.555295][ T10] ipv6_add_addr+0x411/0x2000 [ 909.555295][ T10] inet6_addr_add+0x30e/0xa40 [ 909.555295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.555295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.555295][ T10] netlink_rcv_skb+0x130/0x360 [ 909.555295][ T10] netlink_unicast+0x449/0x710 [ 909.555295][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.555295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.555295][ T10] ___sys_sendmsg+0xee/0x170 [ 909.555295][ T10] __sys_sendmsg+0xcd/0x170 [ 909.555295][ T10] do_syscall_64+0xc6/0x1e0 [ 909.555295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.555295][ T10] [ 909.557381][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 909.557381][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.557381][ T10] ipv6_find_idev+0x102/0x170 [ 909.557381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.557381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.557381][ T10] netlink_rcv_skb+0x130/0x360 [ 909.557381][ T10] netlink_unicast+0x449/0x710 [ 909.557381][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.557381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.557381][ T10] ___sys_sendmsg+0xee/0x170 [ 909.557381][ T10] __sys_sendmsg+0xcd/0x170 [ 909.557381][ T10] do_syscall_64+0xc6/0x1e0 [ 909.557381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.557381][ T10] [ 909.559149][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 909.559149][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.559149][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.559149][ T10] ipv6_find_idev+0x102/0x170 [ 909.559149][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.559149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.559149][ T10] netlink_rcv_skb+0x130/0x360 [ 909.559149][ T10] netlink_unicast+0x449/0x710 [ 909.559149][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.559149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.559149][ T10] ___sys_sendmsg+0xee/0x170 [ 909.559149][ T10] __sys_sendmsg+0xcd/0x170 [ 909.559149][ T10] do_syscall_64+0xc6/0x1e0 [ 909.559149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.559149][ T10] [ 909.561245][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 909.561573][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 909.561573][ T10] netdev_get_by_index+0x5e/0x80 [ 909.561573][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.561573][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.561573][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.561573][ T10] ipv6_add_addr+0x411/0x2000 [ 909.561573][ T10] inet6_addr_add+0x30e/0xa40 [ 909.561573][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.561573][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.561573][ T10] netlink_rcv_skb+0x130/0x360 [ 909.561573][ T10] netlink_unicast+0x449/0x710 [ 909.561573][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.561573][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.561573][ T10] ___sys_sendmsg+0xee/0x170 [ 909.561573][ T10] __sys_sendmsg+0xcd/0x170 [ 909.561573][ T10] do_syscall_64+0xc6/0x1e0 [ 909.561573][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.561573][ T10] [ 909.563937][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 909.563937][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.563937][ T10] ipv6_find_idev+0x102/0x170 [ 909.563937][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.563937][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.563937][ T10] netlink_rcv_skb+0x130/0x360 [ 909.563937][ T10] netlink_unicast+0x449/0x710 [ 909.563937][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.563937][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.563937][ T10] ___sys_sendmsg+0xee/0x170 [ 909.563937][ T10] __sys_sendmsg+0xcd/0x170 [ 909.563937][ T10] do_syscall_64+0xc6/0x1e0 [ 909.563937][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.563937][ T10] [ 909.565748][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 909.565748][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.565748][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.565748][ T10] ipv6_find_idev+0x102/0x170 [ 909.565748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.565748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.565748][ T10] netlink_rcv_skb+0x130/0x360 [ 909.565748][ T10] netlink_unicast+0x449/0x710 [ 909.565748][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.565748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.565748][ T10] ___sys_sendmsg+0xee/0x170 [ 909.565748][ T10] __sys_sendmsg+0xcd/0x170 [ 909.565748][ T10] do_syscall_64+0xc6/0x1e0 [ 909.565748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.565748][ T10] [ 909.567800][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 909.568133][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 909.568133][ T10] netdev_get_by_index+0x5e/0x80 [ 909.568133][ T10] fib6_nh_init+0x3d8/0x15b0 [ 909.568133][ T10] ip6_route_info_create+0xf18/0x17d0 [ 909.568133][ T10] addrconf_f6i_alloc+0x244/0x410 [ 909.568133][ T10] ipv6_add_addr+0x411/0x2000 [ 909.568133][ T10] inet6_addr_add+0x30e/0xa40 [ 909.568133][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 909.568133][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.568133][ T10] netlink_rcv_skb+0x130/0x360 [ 909.568133][ T10] netlink_unicast+0x449/0x710 [ 909.568133][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.568133][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.568133][ T10] ___sys_sendmsg+0xee/0x170 [ 909.568133][ T10] __sys_sendmsg+0xcd/0x170 [ 909.568133][ T10] do_syscall_64+0xc6/0x1e0 [ 909.568133][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.568133][ T10] [ 909.570322][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 909.570322][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 909.570322][ T10] ipv6_find_idev+0x102/0x170 [ 909.570322][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.570322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.570322][ T10] netlink_rcv_skb+0x130/0x360 [ 909.570322][ T10] netlink_unicast+0x449/0x710 [ 909.570322][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.570322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.570322][ T10] ___sys_sendmsg+0xee/0x170 [ 909.570322][ T10] __sys_sendmsg+0xcd/0x170 [ 909.570322][ T10] do_syscall_64+0xc6/0x1e0 [ 909.570322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.570322][ T10] [ 909.572016][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 909.572016][ T10] neigh_parms_alloc+0x1e5/0x510 [ 909.572016][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 909.572016][ T10] ipv6_find_idev+0x102/0x170 [ 909.572016][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 909.572016][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 909.572016][ T10] netlink_rcv_skb+0x130/0x360 [ 909.572016][ T10] netlink_unicast+0x449/0x710 [ 909.572016][ T10] netlink_sendmsg+0x723/0xbe0 [ 909.572016][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 909.572016][ T10] ___sys_sendmsg+0xee/0x170 [ 909.572016][ T10] __sys_sendmsg+0xcd/0x170 [ 909.572016][ T10] do_syscall_64+0xc6/0x1e0 [ 909.572016][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 909.572016][ T10] [ 919.627760][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 919.628089][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 919.628089][ T10] netdev_get_by_index+0x5e/0x80 [ 919.628089][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.628089][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.628089][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.628089][ T10] ipv6_add_addr+0x411/0x2000 [ 919.628089][ T10] inet6_addr_add+0x30e/0xa40 [ 919.628089][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.628089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.628089][ T10] netlink_rcv_skb+0x130/0x360 [ 919.628089][ T10] netlink_unicast+0x449/0x710 [ 919.628089][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.628089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.628089][ T10] ___sys_sendmsg+0xee/0x170 [ 919.628089][ T10] __sys_sendmsg+0xcd/0x170 [ 919.628089][ T10] do_syscall_64+0xc6/0x1e0 [ 919.628089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.628089][ T10] [ 919.630145][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 919.630145][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.630145][ T10] ipv6_find_idev+0x102/0x170 [ 919.630145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.630145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.630145][ T10] netlink_rcv_skb+0x130/0x360 [ 919.630145][ T10] netlink_unicast+0x449/0x710 [ 919.630145][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.630145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.630145][ T10] ___sys_sendmsg+0xee/0x170 [ 919.630145][ T10] __sys_sendmsg+0xcd/0x170 [ 919.630145][ T10] do_syscall_64+0xc6/0x1e0 [ 919.630145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.630145][ T10] [ 919.631699][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 919.631699][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.631699][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.631699][ T10] ipv6_find_idev+0x102/0x170 [ 919.631699][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.631699][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.631699][ T10] netlink_rcv_skb+0x130/0x360 [ 919.631699][ T10] netlink_unicast+0x449/0x710 [ 919.631699][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.631699][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.631699][ T10] ___sys_sendmsg+0xee/0x170 [ 919.631699][ T10] __sys_sendmsg+0xcd/0x170 [ 919.631699][ T10] do_syscall_64+0xc6/0x1e0 [ 919.631699][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.631699][ T10] [ 919.633390][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 919.633664][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 919.633664][ T10] netdev_get_by_index+0x5e/0x80 [ 919.633664][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.633664][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.633664][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.633664][ T10] ipv6_add_addr+0x411/0x2000 [ 919.633664][ T10] inet6_addr_add+0x30e/0xa40 [ 919.633664][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.633664][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.633664][ T10] netlink_rcv_skb+0x130/0x360 [ 919.633664][ T10] netlink_unicast+0x449/0x710 [ 919.633664][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.633664][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.633664][ T10] ___sys_sendmsg+0xee/0x170 [ 919.633664][ T10] __sys_sendmsg+0xcd/0x170 [ 919.633664][ T10] do_syscall_64+0xc6/0x1e0 [ 919.633664][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.633664][ T10] [ 919.635689][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 919.635689][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.635689][ T10] ipv6_find_idev+0x102/0x170 [ 919.635689][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.635689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.635689][ T10] netlink_rcv_skb+0x130/0x360 [ 919.635689][ T10] netlink_unicast+0x449/0x710 [ 919.635689][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.635689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.635689][ T10] ___sys_sendmsg+0xee/0x170 [ 919.635689][ T10] __sys_sendmsg+0xcd/0x170 [ 919.635689][ T10] do_syscall_64+0xc6/0x1e0 [ 919.635689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.635689][ T10] [ 919.637210][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 919.637210][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.637210][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.637210][ T10] ipv6_find_idev+0x102/0x170 [ 919.637210][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.637210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.637210][ T10] netlink_rcv_skb+0x130/0x360 [ 919.637210][ T10] netlink_unicast+0x449/0x710 [ 919.637210][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.637210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.637210][ T10] ___sys_sendmsg+0xee/0x170 [ 919.637210][ T10] __sys_sendmsg+0xcd/0x170 [ 919.637210][ T10] do_syscall_64+0xc6/0x1e0 [ 919.637210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.637210][ T10] [ 919.638873][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 919.639215][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 919.639215][ T10] netdev_get_by_index+0x5e/0x80 [ 919.639215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.639215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.639215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.639215][ T10] ipv6_add_addr+0x411/0x2000 [ 919.639215][ T10] inet6_addr_add+0x30e/0xa40 [ 919.639215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.639215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.639215][ T10] netlink_rcv_skb+0x130/0x360 [ 919.639215][ T10] netlink_unicast+0x449/0x710 [ 919.639215][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.639215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.639215][ T10] ___sys_sendmsg+0xee/0x170 [ 919.639215][ T10] __sys_sendmsg+0xcd/0x170 [ 919.639215][ T10] do_syscall_64+0xc6/0x1e0 [ 919.639215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.639215][ T10] [ 919.641486][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 919.641486][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.641486][ T10] ipv6_find_idev+0x102/0x170 [ 919.641486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.641486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.641486][ T10] netlink_rcv_skb+0x130/0x360 [ 919.641486][ T10] netlink_unicast+0x449/0x710 [ 919.641486][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.641486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.641486][ T10] ___sys_sendmsg+0xee/0x170 [ 919.641486][ T10] __sys_sendmsg+0xcd/0x170 [ 919.641486][ T10] do_syscall_64+0xc6/0x1e0 [ 919.641486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.641486][ T10] [ 919.643247][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 919.643247][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.643247][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.643247][ T10] ipv6_find_idev+0x102/0x170 [ 919.643247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.643247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.643247][ T10] netlink_rcv_skb+0x130/0x360 [ 919.643247][ T10] netlink_unicast+0x449/0x710 [ 919.643247][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.643247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.643247][ T10] ___sys_sendmsg+0xee/0x170 [ 919.643247][ T10] __sys_sendmsg+0xcd/0x170 [ 919.643247][ T10] do_syscall_64+0xc6/0x1e0 [ 919.643247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.643247][ T10] [ 919.645141][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 919.645419][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 919.645419][ T10] netdev_get_by_index+0x5e/0x80 [ 919.645419][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.645419][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.645419][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.645419][ T10] ipv6_add_addr+0x411/0x2000 [ 919.645419][ T10] inet6_addr_add+0x30e/0xa40 [ 919.645419][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.645419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.645419][ T10] netlink_rcv_skb+0x130/0x360 [ 919.645419][ T10] netlink_unicast+0x449/0x710 [ 919.645419][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.645419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.645419][ T10] ___sys_sendmsg+0xee/0x170 [ 919.645419][ T10] __sys_sendmsg+0xcd/0x170 [ 919.645419][ T10] do_syscall_64+0xc6/0x1e0 [ 919.645419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.645419][ T10] [ 919.647531][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 919.647531][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.647531][ T10] ipv6_find_idev+0x102/0x170 [ 919.647531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.647531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.647531][ T10] netlink_rcv_skb+0x130/0x360 [ 919.647531][ T10] netlink_unicast+0x449/0x710 [ 919.647531][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.647531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.647531][ T10] ___sys_sendmsg+0xee/0x170 [ 919.647531][ T10] __sys_sendmsg+0xcd/0x170 [ 919.647531][ T10] do_syscall_64+0xc6/0x1e0 [ 919.647531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.647531][ T10] [ 919.649322][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 919.649322][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.649322][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.649322][ T10] ipv6_find_idev+0x102/0x170 [ 919.649322][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.649322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.649322][ T10] netlink_rcv_skb+0x130/0x360 [ 919.649322][ T10] netlink_unicast+0x449/0x710 [ 919.649322][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.649322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.649322][ T10] ___sys_sendmsg+0xee/0x170 [ 919.649322][ T10] __sys_sendmsg+0xcd/0x170 [ 919.649322][ T10] do_syscall_64+0xc6/0x1e0 [ 919.649322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.649322][ T10] [ 919.651090][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 919.651430][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 919.651430][ T10] netdev_get_by_index+0x5e/0x80 [ 919.651430][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.651430][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.651430][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.651430][ T10] ipv6_add_addr+0x411/0x2000 [ 919.651430][ T10] inet6_addr_add+0x30e/0xa40 [ 919.651430][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.651430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.651430][ T10] netlink_rcv_skb+0x130/0x360 [ 919.651430][ T10] netlink_unicast+0x449/0x710 [ 919.651430][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.651430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.651430][ T10] ___sys_sendmsg+0xee/0x170 [ 919.651430][ T10] __sys_sendmsg+0xcd/0x170 [ 919.651430][ T10] do_syscall_64+0xc6/0x1e0 [ 919.651430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.651430][ T10] [ 919.653453][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 919.653453][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.653453][ T10] ipv6_find_idev+0x102/0x170 [ 919.653453][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.653453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.653453][ T10] netlink_rcv_skb+0x130/0x360 [ 919.653453][ T10] netlink_unicast+0x449/0x710 [ 919.653453][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.653453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.653453][ T10] ___sys_sendmsg+0xee/0x170 [ 919.653453][ T10] __sys_sendmsg+0xcd/0x170 [ 919.653453][ T10] do_syscall_64+0xc6/0x1e0 [ 919.653453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.653453][ T10] [ 919.655141][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 919.655141][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.655141][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.655141][ T10] ipv6_find_idev+0x102/0x170 [ 919.655141][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.655141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.655141][ T10] netlink_rcv_skb+0x130/0x360 [ 919.655141][ T10] netlink_unicast+0x449/0x710 [ 919.655141][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.655141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.655141][ T10] ___sys_sendmsg+0xee/0x170 [ 919.655141][ T10] __sys_sendmsg+0xcd/0x170 [ 919.655141][ T10] do_syscall_64+0xc6/0x1e0 [ 919.655141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.655141][ T10] [ 919.657021][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 919.657288][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 919.657288][ T10] netdev_get_by_index+0x5e/0x80 [ 919.657288][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.657288][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.657288][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.657288][ T10] ipv6_add_addr+0x411/0x2000 [ 919.657288][ T10] inet6_addr_add+0x30e/0xa40 [ 919.657288][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.657288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.657288][ T10] netlink_rcv_skb+0x130/0x360 [ 919.657288][ T10] netlink_unicast+0x449/0x710 [ 919.657288][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.657288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.657288][ T10] ___sys_sendmsg+0xee/0x170 [ 919.657288][ T10] __sys_sendmsg+0xcd/0x170 [ 919.657288][ T10] do_syscall_64+0xc6/0x1e0 [ 919.657288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.657288][ T10] [ 919.659517][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 919.659517][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.659517][ T10] ipv6_find_idev+0x102/0x170 [ 919.659517][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.659517][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.659517][ T10] netlink_rcv_skb+0x130/0x360 [ 919.659517][ T10] netlink_unicast+0x449/0x710 [ 919.659517][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.659517][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.659517][ T10] ___sys_sendmsg+0xee/0x170 [ 919.659517][ T10] __sys_sendmsg+0xcd/0x170 [ 919.659517][ T10] do_syscall_64+0xc6/0x1e0 [ 919.659517][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.659517][ T10] [ 919.661167][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 919.661167][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.661167][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.661167][ T10] ipv6_find_idev+0x102/0x170 [ 919.661167][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.661167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.661167][ T10] netlink_rcv_skb+0x130/0x360 [ 919.661167][ T10] netlink_unicast+0x449/0x710 [ 919.661167][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.661167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.661167][ T10] ___sys_sendmsg+0xee/0x170 [ 919.661167][ T10] __sys_sendmsg+0xcd/0x170 [ 919.661167][ T10] do_syscall_64+0xc6/0x1e0 [ 919.661167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.661167][ T10] [ 919.663177][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 919.663442][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 919.663442][ T10] netdev_get_by_index+0x5e/0x80 [ 919.663442][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.663442][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.663442][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.663442][ T10] ipv6_add_addr+0x411/0x2000 [ 919.663442][ T10] inet6_addr_add+0x30e/0xa40 [ 919.663442][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.663442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.663442][ T10] netlink_rcv_skb+0x130/0x360 [ 919.663442][ T10] netlink_unicast+0x449/0x710 [ 919.663442][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.663442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.663442][ T10] ___sys_sendmsg+0xee/0x170 [ 919.663442][ T10] __sys_sendmsg+0xcd/0x170 [ 919.663442][ T10] do_syscall_64+0xc6/0x1e0 [ 919.663442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.663442][ T10] [ 919.665585][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 919.665585][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.665585][ T10] ipv6_find_idev+0x102/0x170 [ 919.665585][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.665585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.665585][ T10] netlink_rcv_skb+0x130/0x360 [ 919.665585][ T10] netlink_unicast+0x449/0x710 [ 919.665585][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.665585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.665585][ T10] ___sys_sendmsg+0xee/0x170 [ 919.665585][ T10] __sys_sendmsg+0xcd/0x170 [ 919.665585][ T10] do_syscall_64+0xc6/0x1e0 [ 919.665585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.665585][ T10] [ 919.667131][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 919.667131][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.667131][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.667131][ T10] ipv6_find_idev+0x102/0x170 [ 919.667131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.667131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.667131][ T10] netlink_rcv_skb+0x130/0x360 [ 919.667131][ T10] netlink_unicast+0x449/0x710 [ 919.667131][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.667131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.667131][ T10] ___sys_sendmsg+0xee/0x170 [ 919.667131][ T10] __sys_sendmsg+0xcd/0x170 [ 919.667131][ T10] do_syscall_64+0xc6/0x1e0 [ 919.667131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.667131][ T10] [ 919.668832][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 919.669091][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 919.669091][ T10] netdev_get_by_index+0x5e/0x80 [ 919.669091][ T10] fib6_nh_init+0x3d8/0x15b0 [ 919.669091][ T10] ip6_route_info_create+0xf18/0x17d0 [ 919.669091][ T10] addrconf_f6i_alloc+0x244/0x410 [ 919.669091][ T10] ipv6_add_addr+0x411/0x2000 [ 919.669091][ T10] inet6_addr_add+0x30e/0xa40 [ 919.669091][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 919.669091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.669091][ T10] netlink_rcv_skb+0x130/0x360 [ 919.669091][ T10] netlink_unicast+0x449/0x710 [ 919.669091][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.669091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.669091][ T10] ___sys_sendmsg+0xee/0x170 [ 919.669091][ T10] __sys_sendmsg+0xcd/0x170 [ 919.669091][ T10] do_syscall_64+0xc6/0x1e0 [ 919.669091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.669091][ T10] [ 919.671250][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 919.671250][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 919.671250][ T10] ipv6_find_idev+0x102/0x170 [ 919.671250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.671250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.671250][ T10] netlink_rcv_skb+0x130/0x360 [ 919.671250][ T10] netlink_unicast+0x449/0x710 [ 919.671250][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.671250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.671250][ T10] ___sys_sendmsg+0xee/0x170 [ 919.671250][ T10] __sys_sendmsg+0xcd/0x170 [ 919.671250][ T10] do_syscall_64+0xc6/0x1e0 [ 919.671250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.671250][ T10] [ 919.673022][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 919.673022][ T10] neigh_parms_alloc+0x1e5/0x510 [ 919.673022][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 919.673022][ T10] ipv6_find_idev+0x102/0x170 [ 919.673022][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 919.673022][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 919.673022][ T10] netlink_rcv_skb+0x130/0x360 [ 919.673022][ T10] netlink_unicast+0x449/0x710 [ 919.673022][ T10] netlink_sendmsg+0x723/0xbe0 [ 919.673022][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 919.673022][ T10] ___sys_sendmsg+0xee/0x170 [ 919.673022][ T10] __sys_sendmsg+0xcd/0x170 [ 919.673022][ T10] do_syscall_64+0xc6/0x1e0 [ 919.673022][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 919.673022][ T10] [ 929.811673][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 929.812050][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 929.812050][ T10] netdev_get_by_index+0x5e/0x80 [ 929.812050][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.812050][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.812050][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.812050][ T10] ipv6_add_addr+0x411/0x2000 [ 929.812050][ T10] inet6_addr_add+0x30e/0xa40 [ 929.812050][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.812050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.812050][ T10] netlink_rcv_skb+0x130/0x360 [ 929.812050][ T10] netlink_unicast+0x449/0x710 [ 929.812050][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.812050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.812050][ T10] ___sys_sendmsg+0xee/0x170 [ 929.812050][ T10] __sys_sendmsg+0xcd/0x170 [ 929.812050][ T10] do_syscall_64+0xc6/0x1e0 [ 929.812050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.812050][ T10] [ 929.814285][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 929.814285][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.814285][ T10] ipv6_find_idev+0x102/0x170 [ 929.814285][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.814285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.814285][ T10] netlink_rcv_skb+0x130/0x360 [ 929.814285][ T10] netlink_unicast+0x449/0x710 [ 929.814285][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.814285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.814285][ T10] ___sys_sendmsg+0xee/0x170 [ 929.814285][ T10] __sys_sendmsg+0xcd/0x170 [ 929.814285][ T10] do_syscall_64+0xc6/0x1e0 [ 929.814285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.814285][ T10] [ 929.815998][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 929.815998][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.815998][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.815998][ T10] ipv6_find_idev+0x102/0x170 [ 929.815998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.815998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.815998][ T10] netlink_rcv_skb+0x130/0x360 [ 929.815998][ T10] netlink_unicast+0x449/0x710 [ 929.815998][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.815998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.815998][ T10] ___sys_sendmsg+0xee/0x170 [ 929.815998][ T10] __sys_sendmsg+0xcd/0x170 [ 929.815998][ T10] do_syscall_64+0xc6/0x1e0 [ 929.815998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.815998][ T10] [ 929.817905][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 929.818235][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 929.818235][ T10] netdev_get_by_index+0x5e/0x80 [ 929.818235][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.818235][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.818235][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.818235][ T10] ipv6_add_addr+0x411/0x2000 [ 929.818235][ T10] inet6_addr_add+0x30e/0xa40 [ 929.818235][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.818235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.818235][ T10] netlink_rcv_skb+0x130/0x360 [ 929.818235][ T10] netlink_unicast+0x449/0x710 [ 929.818235][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.818235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.818235][ T10] ___sys_sendmsg+0xee/0x170 [ 929.818235][ T10] __sys_sendmsg+0xcd/0x170 [ 929.818235][ T10] do_syscall_64+0xc6/0x1e0 [ 929.818235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.818235][ T10] [ 929.820458][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 929.820458][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.820458][ T10] ipv6_find_idev+0x102/0x170 [ 929.820458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.820458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.820458][ T10] netlink_rcv_skb+0x130/0x360 [ 929.820458][ T10] netlink_unicast+0x449/0x710 [ 929.820458][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.820458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.820458][ T10] ___sys_sendmsg+0xee/0x170 [ 929.820458][ T10] __sys_sendmsg+0xcd/0x170 [ 929.820458][ T10] do_syscall_64+0xc6/0x1e0 [ 929.820458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.820458][ T10] [ 929.822162][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 929.822162][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.822162][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.822162][ T10] ipv6_find_idev+0x102/0x170 [ 929.822162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.822162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.822162][ T10] netlink_rcv_skb+0x130/0x360 [ 929.822162][ T10] netlink_unicast+0x449/0x710 [ 929.822162][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.822162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.822162][ T10] ___sys_sendmsg+0xee/0x170 [ 929.822162][ T10] __sys_sendmsg+0xcd/0x170 [ 929.822162][ T10] do_syscall_64+0xc6/0x1e0 [ 929.822162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.822162][ T10] [ 929.824101][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 929.824403][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 929.824403][ T10] netdev_get_by_index+0x5e/0x80 [ 929.824403][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.824403][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.824403][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.824403][ T10] ipv6_add_addr+0x411/0x2000 [ 929.824403][ T10] inet6_addr_add+0x30e/0xa40 [ 929.824403][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.824403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.824403][ T10] netlink_rcv_skb+0x130/0x360 [ 929.824403][ T10] netlink_unicast+0x449/0x710 [ 929.824403][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.824403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.824403][ T10] ___sys_sendmsg+0xee/0x170 [ 929.824403][ T10] __sys_sendmsg+0xcd/0x170 [ 929.824403][ T10] do_syscall_64+0xc6/0x1e0 [ 929.824403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.824403][ T10] [ 929.826653][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 929.826653][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.826653][ T10] ipv6_find_idev+0x102/0x170 [ 929.826653][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.826653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.826653][ T10] netlink_rcv_skb+0x130/0x360 [ 929.826653][ T10] netlink_unicast+0x449/0x710 [ 929.826653][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.826653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.826653][ T10] ___sys_sendmsg+0xee/0x170 [ 929.826653][ T10] __sys_sendmsg+0xcd/0x170 [ 929.826653][ T10] do_syscall_64+0xc6/0x1e0 [ 929.826653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.826653][ T10] [ 929.828381][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 929.828381][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.828381][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.828381][ T10] ipv6_find_idev+0x102/0x170 [ 929.828381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.828381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.828381][ T10] netlink_rcv_skb+0x130/0x360 [ 929.828381][ T10] netlink_unicast+0x449/0x710 [ 929.828381][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.828381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.828381][ T10] ___sys_sendmsg+0xee/0x170 [ 929.828381][ T10] __sys_sendmsg+0xcd/0x170 [ 929.828381][ T10] do_syscall_64+0xc6/0x1e0 [ 929.828381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.828381][ T10] [ 929.830322][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 929.830675][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 929.830675][ T10] netdev_get_by_index+0x5e/0x80 [ 929.830675][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.830675][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.830675][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.830675][ T10] ipv6_add_addr+0x411/0x2000 [ 929.830675][ T10] inet6_addr_add+0x30e/0xa40 [ 929.830675][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.830675][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.830675][ T10] netlink_rcv_skb+0x130/0x360 [ 929.830675][ T10] netlink_unicast+0x449/0x710 [ 929.830675][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.830675][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.830675][ T10] ___sys_sendmsg+0xee/0x170 [ 929.830675][ T10] __sys_sendmsg+0xcd/0x170 [ 929.830675][ T10] do_syscall_64+0xc6/0x1e0 [ 929.830675][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.830675][ T10] [ 929.832913][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 929.832913][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.832913][ T10] ipv6_find_idev+0x102/0x170 [ 929.832913][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.832913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.832913][ T10] netlink_rcv_skb+0x130/0x360 [ 929.832913][ T10] netlink_unicast+0x449/0x710 [ 929.832913][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.832913][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.832913][ T10] ___sys_sendmsg+0xee/0x170 [ 929.832913][ T10] __sys_sendmsg+0xcd/0x170 [ 929.832913][ T10] do_syscall_64+0xc6/0x1e0 [ 929.832913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.832913][ T10] [ 929.834644][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 929.834644][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.834644][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.834644][ T10] ipv6_find_idev+0x102/0x170 [ 929.834644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.834644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.834644][ T10] netlink_rcv_skb+0x130/0x360 [ 929.834644][ T10] netlink_unicast+0x449/0x710 [ 929.834644][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.834644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.834644][ T10] ___sys_sendmsg+0xee/0x170 [ 929.834644][ T10] __sys_sendmsg+0xcd/0x170 [ 929.834644][ T10] do_syscall_64+0xc6/0x1e0 [ 929.834644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.834644][ T10] [ 929.836657][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 929.837024][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 929.837024][ T10] netdev_get_by_index+0x5e/0x80 [ 929.837024][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.837024][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.837024][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.837024][ T10] ipv6_add_addr+0x411/0x2000 [ 929.837024][ T10] inet6_addr_add+0x30e/0xa40 [ 929.837024][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.837024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.837024][ T10] netlink_rcv_skb+0x130/0x360 [ 929.837024][ T10] netlink_unicast+0x449/0x710 [ 929.837024][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.837024][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.837024][ T10] ___sys_sendmsg+0xee/0x170 [ 929.837024][ T10] __sys_sendmsg+0xcd/0x170 [ 929.837024][ T10] do_syscall_64+0xc6/0x1e0 [ 929.837024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.837024][ T10] [ 929.839247][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 929.839247][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.839247][ T10] ipv6_find_idev+0x102/0x170 [ 929.839247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.839247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.839247][ T10] netlink_rcv_skb+0x130/0x360 [ 929.839247][ T10] netlink_unicast+0x449/0x710 [ 929.839247][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.839247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.839247][ T10] ___sys_sendmsg+0xee/0x170 [ 929.839247][ T10] __sys_sendmsg+0xcd/0x170 [ 929.839247][ T10] do_syscall_64+0xc6/0x1e0 [ 929.839247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.839247][ T10] [ 929.841154][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 929.841154][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.841154][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.841154][ T10] ipv6_find_idev+0x102/0x170 [ 929.841154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.841154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.841154][ T10] netlink_rcv_skb+0x130/0x360 [ 929.841154][ T10] netlink_unicast+0x449/0x710 [ 929.841154][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.841154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.841154][ T10] ___sys_sendmsg+0xee/0x170 [ 929.841154][ T10] __sys_sendmsg+0xcd/0x170 [ 929.841154][ T10] do_syscall_64+0xc6/0x1e0 [ 929.841154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.841154][ T10] [ 929.843324][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 929.843727][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 929.843727][ T10] netdev_get_by_index+0x5e/0x80 [ 929.843727][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.843727][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.843727][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.843727][ T10] ipv6_add_addr+0x411/0x2000 [ 929.843727][ T10] inet6_addr_add+0x30e/0xa40 [ 929.843727][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.843727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.843727][ T10] netlink_rcv_skb+0x130/0x360 [ 929.843727][ T10] netlink_unicast+0x449/0x710 [ 929.843727][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.843727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.843727][ T10] ___sys_sendmsg+0xee/0x170 [ 929.843727][ T10] __sys_sendmsg+0xcd/0x170 [ 929.843727][ T10] do_syscall_64+0xc6/0x1e0 [ 929.843727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.843727][ T10] [ 929.846121][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 929.846121][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.846121][ T10] ipv6_find_idev+0x102/0x170 [ 929.846121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.846121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.846121][ T10] netlink_rcv_skb+0x130/0x360 [ 929.846121][ T10] netlink_unicast+0x449/0x710 [ 929.846121][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.846121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.846121][ T10] ___sys_sendmsg+0xee/0x170 [ 929.846121][ T10] __sys_sendmsg+0xcd/0x170 [ 929.846121][ T10] do_syscall_64+0xc6/0x1e0 [ 929.846121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.846121][ T10] [ 929.848018][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 929.848018][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.848018][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.848018][ T10] ipv6_find_idev+0x102/0x170 [ 929.848018][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.848018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.848018][ T10] netlink_rcv_skb+0x130/0x360 [ 929.848018][ T10] netlink_unicast+0x449/0x710 [ 929.848018][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.848018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.848018][ T10] ___sys_sendmsg+0xee/0x170 [ 929.848018][ T10] __sys_sendmsg+0xcd/0x170 [ 929.848018][ T10] do_syscall_64+0xc6/0x1e0 [ 929.848018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.848018][ T10] [ 929.850087][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 929.850384][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 929.850384][ T10] netdev_get_by_index+0x5e/0x80 [ 929.850384][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.850384][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.850384][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.850384][ T10] ipv6_add_addr+0x411/0x2000 [ 929.850384][ T10] inet6_addr_add+0x30e/0xa40 [ 929.850384][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.850384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.850384][ T10] netlink_rcv_skb+0x130/0x360 [ 929.850384][ T10] netlink_unicast+0x449/0x710 [ 929.850384][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.850384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.850384][ T10] ___sys_sendmsg+0xee/0x170 [ 929.850384][ T10] __sys_sendmsg+0xcd/0x170 [ 929.850384][ T10] do_syscall_64+0xc6/0x1e0 [ 929.850384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.850384][ T10] [ 929.852832][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 929.852832][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.852832][ T10] ipv6_find_idev+0x102/0x170 [ 929.852832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.852832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.852832][ T10] netlink_rcv_skb+0x130/0x360 [ 929.852832][ T10] netlink_unicast+0x449/0x710 [ 929.852832][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.852832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.852832][ T10] ___sys_sendmsg+0xee/0x170 [ 929.852832][ T10] __sys_sendmsg+0xcd/0x170 [ 929.852832][ T10] do_syscall_64+0xc6/0x1e0 [ 929.852832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.852832][ T10] [ 929.854799][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 929.854799][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.854799][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.854799][ T10] ipv6_find_idev+0x102/0x170 [ 929.854799][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.854799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.854799][ T10] netlink_rcv_skb+0x130/0x360 [ 929.854799][ T10] netlink_unicast+0x449/0x710 [ 929.854799][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.854799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.854799][ T10] ___sys_sendmsg+0xee/0x170 [ 929.854799][ T10] __sys_sendmsg+0xcd/0x170 [ 929.854799][ T10] do_syscall_64+0xc6/0x1e0 [ 929.854799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.854799][ T10] [ 929.856938][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 929.857397][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 929.857397][ T10] netdev_get_by_index+0x5e/0x80 [ 929.857397][ T10] fib6_nh_init+0x3d8/0x15b0 [ 929.857397][ T10] ip6_route_info_create+0xf18/0x17d0 [ 929.857397][ T10] addrconf_f6i_alloc+0x244/0x410 [ 929.857397][ T10] ipv6_add_addr+0x411/0x2000 [ 929.857397][ T10] inet6_addr_add+0x30e/0xa40 [ 929.857397][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 929.857397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.857397][ T10] netlink_rcv_skb+0x130/0x360 [ 929.857397][ T10] netlink_unicast+0x449/0x710 [ 929.857397][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.857397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.857397][ T10] ___sys_sendmsg+0xee/0x170 [ 929.857397][ T10] __sys_sendmsg+0xcd/0x170 [ 929.857397][ T10] do_syscall_64+0xc6/0x1e0 [ 929.857397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.857397][ T10] [ 929.859839][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 929.859839][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 929.859839][ T10] ipv6_find_idev+0x102/0x170 [ 929.859839][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.859839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.859839][ T10] netlink_rcv_skb+0x130/0x360 [ 929.859839][ T10] netlink_unicast+0x449/0x710 [ 929.859839][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.859839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.859839][ T10] ___sys_sendmsg+0xee/0x170 [ 929.859839][ T10] __sys_sendmsg+0xcd/0x170 [ 929.859839][ T10] do_syscall_64+0xc6/0x1e0 [ 929.859839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.859839][ T10] [ 929.861752][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 929.861752][ T10] neigh_parms_alloc+0x1e5/0x510 [ 929.861752][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 929.861752][ T10] ipv6_find_idev+0x102/0x170 [ 929.861752][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 929.861752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 929.861752][ T10] netlink_rcv_skb+0x130/0x360 [ 929.861752][ T10] netlink_unicast+0x449/0x710 [ 929.861752][ T10] netlink_sendmsg+0x723/0xbe0 [ 929.861752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 929.861752][ T10] ___sys_sendmsg+0xee/0x170 [ 929.861752][ T10] __sys_sendmsg+0xcd/0x170 [ 929.861752][ T10] do_syscall_64+0xc6/0x1e0 [ 929.861752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 929.861752][ T10] [ 939.964063][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 939.964434][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 939.964434][ T10] netdev_get_by_index+0x5e/0x80 [ 939.964434][ T10] fib6_nh_init+0x3d8/0x15b0 [ 939.964434][ T10] ip6_route_info_create+0xf18/0x17d0 [ 939.964434][ T10] addrconf_f6i_alloc+0x244/0x410 [ 939.964434][ T10] ipv6_add_addr+0x411/0x2000 [ 939.964434][ T10] inet6_addr_add+0x30e/0xa40 [ 939.964434][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 939.964434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.964434][ T10] netlink_rcv_skb+0x130/0x360 [ 939.964434][ T10] netlink_unicast+0x449/0x710 [ 939.964434][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.964434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.964434][ T10] ___sys_sendmsg+0xee/0x170 [ 939.964434][ T10] __sys_sendmsg+0xcd/0x170 [ 939.964434][ T10] do_syscall_64+0xc6/0x1e0 [ 939.964434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.964434][ T10] [ 939.966497][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 939.966497][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 939.966497][ T10] ipv6_find_idev+0x102/0x170 [ 939.966497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.966497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.966497][ T10] netlink_rcv_skb+0x130/0x360 [ 939.966497][ T10] netlink_unicast+0x449/0x710 [ 939.966497][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.966497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.966497][ T10] ___sys_sendmsg+0xee/0x170 [ 939.966497][ T10] __sys_sendmsg+0xcd/0x170 [ 939.966497][ T10] do_syscall_64+0xc6/0x1e0 [ 939.966497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.966497][ T10] [ 939.968155][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 939.968155][ T10] neigh_parms_alloc+0x1e5/0x510 [ 939.968155][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 939.968155][ T10] ipv6_find_idev+0x102/0x170 [ 939.968155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.968155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.968155][ T10] netlink_rcv_skb+0x130/0x360 [ 939.968155][ T10] netlink_unicast+0x449/0x710 [ 939.968155][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.968155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.968155][ T10] ___sys_sendmsg+0xee/0x170 [ 939.968155][ T10] __sys_sendmsg+0xcd/0x170 [ 939.968155][ T10] do_syscall_64+0xc6/0x1e0 [ 939.968155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.968155][ T10] [ 939.970338][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 939.970624][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 939.970624][ T10] netdev_get_by_index+0x5e/0x80 [ 939.970624][ T10] fib6_nh_init+0x3d8/0x15b0 [ 939.970624][ T10] ip6_route_info_create+0xf18/0x17d0 [ 939.970624][ T10] addrconf_f6i_alloc+0x244/0x410 [ 939.970624][ T10] ipv6_add_addr+0x411/0x2000 [ 939.970624][ T10] inet6_addr_add+0x30e/0xa40 [ 939.970624][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 939.970624][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.970624][ T10] netlink_rcv_skb+0x130/0x360 [ 939.970624][ T10] netlink_unicast+0x449/0x710 [ 939.970624][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.970624][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.970624][ T10] ___sys_sendmsg+0xee/0x170 [ 939.970624][ T10] __sys_sendmsg+0xcd/0x170 [ 939.970624][ T10] do_syscall_64+0xc6/0x1e0 [ 939.970624][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.970624][ T10] [ 939.972758][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 939.972758][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 939.972758][ T10] ipv6_find_idev+0x102/0x170 [ 939.972758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.972758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.972758][ T10] netlink_rcv_skb+0x130/0x360 [ 939.972758][ T10] netlink_unicast+0x449/0x710 [ 939.972758][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.972758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.972758][ T10] ___sys_sendmsg+0xee/0x170 [ 939.972758][ T10] __sys_sendmsg+0xcd/0x170 [ 939.972758][ T10] do_syscall_64+0xc6/0x1e0 [ 939.972758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.972758][ T10] [ 939.974402][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 939.974402][ T10] neigh_parms_alloc+0x1e5/0x510 [ 939.974402][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 939.974402][ T10] ipv6_find_idev+0x102/0x170 [ 939.974402][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.974402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.974402][ T10] netlink_rcv_skb+0x130/0x360 [ 939.974402][ T10] netlink_unicast+0x449/0x710 [ 939.974402][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.974402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.974402][ T10] ___sys_sendmsg+0xee/0x170 [ 939.974402][ T10] __sys_sendmsg+0xcd/0x170 [ 939.974402][ T10] do_syscall_64+0xc6/0x1e0 [ 939.974402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.974402][ T10] [ 939.976475][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 939.976771][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 939.976771][ T10] netdev_get_by_index+0x5e/0x80 [ 939.976771][ T10] fib6_nh_init+0x3d8/0x15b0 [ 939.976771][ T10] ip6_route_info_create+0xf18/0x17d0 [ 939.976771][ T10] addrconf_f6i_alloc+0x244/0x410 [ 939.976771][ T10] ipv6_add_addr+0x411/0x2000 [ 939.976771][ T10] inet6_addr_add+0x30e/0xa40 [ 939.976771][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 939.976771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.976771][ T10] netlink_rcv_skb+0x130/0x360 [ 939.976771][ T10] netlink_unicast+0x449/0x710 [ 939.976771][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.976771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.976771][ T10] ___sys_sendmsg+0xee/0x170 [ 939.976771][ T10] __sys_sendmsg+0xcd/0x170 [ 939.976771][ T10] do_syscall_64+0xc6/0x1e0 [ 939.976771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.976771][ T10] [ 939.978950][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 939.978950][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 939.978950][ T10] ipv6_find_idev+0x102/0x170 [ 939.978950][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.978950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.978950][ T10] netlink_rcv_skb+0x130/0x360 [ 939.978950][ T10] netlink_unicast+0x449/0x710 [ 939.978950][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.978950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.978950][ T10] ___sys_sendmsg+0xee/0x170 [ 939.978950][ T10] __sys_sendmsg+0xcd/0x170 [ 939.978950][ T10] do_syscall_64+0xc6/0x1e0 [ 939.978950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.978950][ T10] [ 939.980661][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 939.980661][ T10] neigh_parms_alloc+0x1e5/0x510 [ 939.980661][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 939.980661][ T10] ipv6_find_idev+0x102/0x170 [ 939.980661][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.980661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.980661][ T10] netlink_rcv_skb+0x130/0x360 [ 939.980661][ T10] netlink_unicast+0x449/0x710 [ 939.980661][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.980661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.980661][ T10] ___sys_sendmsg+0xee/0x170 [ 939.980661][ T10] __sys_sendmsg+0xcd/0x170 [ 939.980661][ T10] do_syscall_64+0xc6/0x1e0 [ 939.980661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.980661][ T10] [ 939.983093][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 939.983377][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 939.983377][ T10] netdev_get_by_index+0x5e/0x80 [ 939.983377][ T10] fib6_nh_init+0x3d8/0x15b0 [ 939.983377][ T10] ip6_route_info_create+0xf18/0x17d0 [ 939.983377][ T10] addrconf_f6i_alloc+0x244/0x410 [ 939.983377][ T10] ipv6_add_addr+0x411/0x2000 [ 939.983377][ T10] inet6_addr_add+0x30e/0xa40 [ 939.983377][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 939.983377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.983377][ T10] netlink_rcv_skb+0x130/0x360 [ 939.983377][ T10] netlink_unicast+0x449/0x710 [ 939.983377][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.983377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.983377][ T10] ___sys_sendmsg+0xee/0x170 [ 939.983377][ T10] __sys_sendmsg+0xcd/0x170 [ 939.983377][ T10] do_syscall_64+0xc6/0x1e0 [ 939.983377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.983377][ T10] [ 939.985511][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 939.985511][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 939.985511][ T10] ipv6_find_idev+0x102/0x170 [ 939.985511][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.985511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.985511][ T10] netlink_rcv_skb+0x130/0x360 [ 939.985511][ T10] netlink_unicast+0x449/0x710 [ 939.985511][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.985511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.985511][ T10] ___sys_sendmsg+0xee/0x170 [ 939.985511][ T10] __sys_sendmsg+0xcd/0x170 [ 939.985511][ T10] do_syscall_64+0xc6/0x1e0 [ 939.985511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.985511][ T10] [ 939.987346][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 939.987346][ T10] neigh_parms_alloc+0x1e5/0x510 [ 939.987346][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 939.987346][ T10] ipv6_find_idev+0x102/0x170 [ 939.987346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.987346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.987346][ T10] netlink_rcv_skb+0x130/0x360 [ 939.987346][ T10] netlink_unicast+0x449/0x710 [ 939.987346][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.987346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.987346][ T10] ___sys_sendmsg+0xee/0x170 [ 939.987346][ T10] __sys_sendmsg+0xcd/0x170 [ 939.987346][ T10] do_syscall_64+0xc6/0x1e0 [ 939.987346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.987346][ T10] [ 939.989303][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 939.989593][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 939.989593][ T10] netdev_get_by_index+0x5e/0x80 [ 939.989593][ T10] fib6_nh_init+0x3d8/0x15b0 [ 939.989593][ T10] ip6_route_info_create+0xf18/0x17d0 [ 939.989593][ T10] addrconf_f6i_alloc+0x244/0x410 [ 939.989593][ T10] ipv6_add_addr+0x411/0x2000 [ 939.989593][ T10] inet6_addr_add+0x30e/0xa40 [ 939.989593][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 939.989593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.989593][ T10] netlink_rcv_skb+0x130/0x360 [ 939.989593][ T10] netlink_unicast+0x449/0x710 [ 939.989593][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.989593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.989593][ T10] ___sys_sendmsg+0xee/0x170 [ 939.989593][ T10] __sys_sendmsg+0xcd/0x170 [ 939.989593][ T10] do_syscall_64+0xc6/0x1e0 [ 939.989593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.989593][ T10] [ 939.991749][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 939.991749][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 939.991749][ T10] ipv6_find_idev+0x102/0x170 [ 939.991749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.991749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.991749][ T10] netlink_rcv_skb+0x130/0x360 [ 939.991749][ T10] netlink_unicast+0x449/0x710 [ 939.991749][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.991749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.991749][ T10] ___sys_sendmsg+0xee/0x170 [ 939.991749][ T10] __sys_sendmsg+0xcd/0x170 [ 939.991749][ T10] do_syscall_64+0xc6/0x1e0 [ 939.991749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.991749][ T10] [ 939.993502][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 939.993502][ T10] neigh_parms_alloc+0x1e5/0x510 [ 939.993502][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 939.993502][ T10] ipv6_find_idev+0x102/0x170 [ 939.993502][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.993502][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.993502][ T10] netlink_rcv_skb+0x130/0x360 [ 939.993502][ T10] netlink_unicast+0x449/0x710 [ 939.993502][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.993502][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.993502][ T10] ___sys_sendmsg+0xee/0x170 [ 939.993502][ T10] __sys_sendmsg+0xcd/0x170 [ 939.993502][ T10] do_syscall_64+0xc6/0x1e0 [ 939.993502][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.993502][ T10] [ 939.996112][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 939.996851][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 939.996851][ T10] netdev_get_by_index+0x5e/0x80 [ 939.996851][ T10] fib6_nh_init+0x3d8/0x15b0 [ 939.996851][ T10] ip6_route_info_create+0xf18/0x17d0 [ 939.996851][ T10] addrconf_f6i_alloc+0x244/0x410 [ 939.996851][ T10] ipv6_add_addr+0x411/0x2000 [ 939.996851][ T10] inet6_addr_add+0x30e/0xa40 [ 939.996851][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 939.996851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.996851][ T10] netlink_rcv_skb+0x130/0x360 [ 939.996851][ T10] netlink_unicast+0x449/0x710 [ 939.996851][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.996851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.996851][ T10] ___sys_sendmsg+0xee/0x170 [ 939.996851][ T10] __sys_sendmsg+0xcd/0x170 [ 939.996851][ T10] do_syscall_64+0xc6/0x1e0 [ 939.996851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.996851][ T10] [ 939.998942][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 939.998942][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 939.998942][ T10] ipv6_find_idev+0x102/0x170 [ 939.998942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 939.998942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 939.998942][ T10] netlink_rcv_skb+0x130/0x360 [ 939.998942][ T10] netlink_unicast+0x449/0x710 [ 939.998942][ T10] netlink_sendmsg+0x723/0xbe0 [ 939.998942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 939.998942][ T10] ___sys_sendmsg+0xee/0x170 [ 939.998942][ T10] __sys_sendmsg+0xcd/0x170 [ 939.998942][ T10] do_syscall_64+0xc6/0x1e0 [ 939.998942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 939.998942][ T10] [ 940.000715][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 940.000715][ T10] neigh_parms_alloc+0x1e5/0x510 [ 940.000715][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 940.000715][ T10] ipv6_find_idev+0x102/0x170 [ 940.000715][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 940.000715][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 940.000715][ T10] netlink_rcv_skb+0x130/0x360 [ 940.000715][ T10] netlink_unicast+0x449/0x710 [ 940.000715][ T10] netlink_sendmsg+0x723/0xbe0 [ 940.000715][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 940.000715][ T10] ___sys_sendmsg+0xee/0x170 [ 940.000715][ T10] __sys_sendmsg+0xcd/0x170 [ 940.000715][ T10] do_syscall_64+0xc6/0x1e0 [ 940.000715][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 940.000715][ T10] [ 940.002690][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 940.003078][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 940.003078][ T10] netdev_get_by_index+0x5e/0x80 [ 940.003078][ T10] fib6_nh_init+0x3d8/0x15b0 [ 940.003078][ T10] ip6_route_info_create+0xf18/0x17d0 [ 940.003078][ T10] addrconf_f6i_alloc+0x244/0x410 [ 940.003078][ T10] ipv6_add_addr+0x411/0x2000 [ 940.003078][ T10] inet6_addr_add+0x30e/0xa40 [ 940.003078][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 940.003078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 940.003078][ T10] netlink_rcv_skb+0x130/0x360 [ 940.003078][ T10] netlink_unicast+0x449/0x710 [ 940.003078][ T10] netlink_sendmsg+0x723/0xbe0 [ 940.003078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 940.003078][ T10] ___sys_sendmsg+0xee/0x170 [ 940.003078][ T10] __sys_sendmsg+0xcd/0x170 [ 940.003078][ T10] do_syscall_64+0xc6/0x1e0 [ 940.003078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 940.003078][ T10] [ 940.005455][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 940.005455][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 940.005455][ T10] ipv6_find_idev+0x102/0x170 [ 940.005455][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 940.005455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 940.005455][ T10] netlink_rcv_skb+0x130/0x360 [ 940.005455][ T10] netlink_unicast+0x449/0x710 [ 940.005455][ T10] netlink_sendmsg+0x723/0xbe0 [ 940.005455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 940.005455][ T10] ___sys_sendmsg+0xee/0x170 [ 940.005455][ T10] __sys_sendmsg+0xcd/0x170 [ 940.005455][ T10] do_syscall_64+0xc6/0x1e0 [ 940.005455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 940.005455][ T10] [ 940.007189][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 940.007189][ T10] neigh_parms_alloc+0x1e5/0x510 [ 940.007189][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 940.007189][ T10] ipv6_find_idev+0x102/0x170 [ 940.007189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 940.007189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 940.007189][ T10] netlink_rcv_skb+0x130/0x360 [ 940.007189][ T10] netlink_unicast+0x449/0x710 [ 940.007189][ T10] netlink_sendmsg+0x723/0xbe0 [ 940.007189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 940.007189][ T10] ___sys_sendmsg+0xee/0x170 [ 940.007189][ T10] __sys_sendmsg+0xcd/0x170 [ 940.007189][ T10] do_syscall_64+0xc6/0x1e0 [ 940.007189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 940.007189][ T10] [ 940.009175][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 940.009488][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 940.009488][ T10] netdev_get_by_index+0x5e/0x80 [ 940.009488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 940.009488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 940.009488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 940.009488][ T10] ipv6_add_addr+0x411/0x2000 [ 940.009488][ T10] inet6_addr_add+0x30e/0xa40 [ 940.009488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 940.009488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 940.009488][ T10] netlink_rcv_skb+0x130/0x360 [ 940.009488][ T10] netlink_unicast+0x449/0x710 [ 940.009488][ T10] netlink_sendmsg+0x723/0xbe0 [ 940.009488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 940.009488][ T10] ___sys_sendmsg+0xee/0x170 [ 940.009488][ T10] __sys_sendmsg+0xcd/0x170 [ 940.009488][ T10] do_syscall_64+0xc6/0x1e0 [ 940.009488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 940.009488][ T10] [ 940.011610][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 940.011610][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 940.011610][ T10] ipv6_find_idev+0x102/0x170 [ 940.011610][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 940.011610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 940.011610][ T10] netlink_rcv_skb+0x130/0x360 [ 940.011610][ T10] netlink_unicast+0x449/0x710 [ 940.011610][ T10] netlink_sendmsg+0x723/0xbe0 [ 940.011610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 940.011610][ T10] ___sys_sendmsg+0xee/0x170 [ 940.011610][ T10] __sys_sendmsg+0xcd/0x170 [ 940.011610][ T10] do_syscall_64+0xc6/0x1e0 [ 940.011610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 940.011610][ T10] [ 940.013201][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 940.013201][ T10] neigh_parms_alloc+0x1e5/0x510 [ 940.013201][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 940.013201][ T10] ipv6_find_idev+0x102/0x170 [ 940.013201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 940.013201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 940.013201][ T10] netlink_rcv_skb+0x130/0x360 [ 940.013201][ T10] netlink_unicast+0x449/0x710 [ 940.013201][ T10] netlink_sendmsg+0x723/0xbe0 [ 940.013201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 940.013201][ T10] ___sys_sendmsg+0xee/0x170 [ 940.013201][ T10] __sys_sendmsg+0xcd/0x170 [ 940.013201][ T10] do_syscall_64+0xc6/0x1e0 [ 940.013201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 940.013201][ T10] [ 950.155670][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 950.156025][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 950.156025][ T10] netdev_get_by_index+0x5e/0x80 [ 950.156025][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.156025][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.156025][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.156025][ T10] ipv6_add_addr+0x411/0x2000 [ 950.156025][ T10] inet6_addr_add+0x30e/0xa40 [ 950.156025][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.156025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.156025][ T10] netlink_rcv_skb+0x130/0x360 [ 950.156025][ T10] netlink_unicast+0x449/0x710 [ 950.156025][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.156025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.156025][ T10] ___sys_sendmsg+0xee/0x170 [ 950.156025][ T10] __sys_sendmsg+0xcd/0x170 [ 950.156025][ T10] do_syscall_64+0xc6/0x1e0 [ 950.156025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.156025][ T10] [ 950.158123][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 950.158123][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.158123][ T10] ipv6_find_idev+0x102/0x170 [ 950.158123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.158123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.158123][ T10] netlink_rcv_skb+0x130/0x360 [ 950.158123][ T10] netlink_unicast+0x449/0x710 [ 950.158123][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.158123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.158123][ T10] ___sys_sendmsg+0xee/0x170 [ 950.158123][ T10] __sys_sendmsg+0xcd/0x170 [ 950.158123][ T10] do_syscall_64+0xc6/0x1e0 [ 950.158123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.158123][ T10] [ 950.159707][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 950.159707][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.159707][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.159707][ T10] ipv6_find_idev+0x102/0x170 [ 950.159707][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.159707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.159707][ T10] netlink_rcv_skb+0x130/0x360 [ 950.159707][ T10] netlink_unicast+0x449/0x710 [ 950.159707][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.159707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.159707][ T10] ___sys_sendmsg+0xee/0x170 [ 950.159707][ T10] __sys_sendmsg+0xcd/0x170 [ 950.159707][ T10] do_syscall_64+0xc6/0x1e0 [ 950.159707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.159707][ T10] [ 950.161456][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 950.161825][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 950.161825][ T10] netdev_get_by_index+0x5e/0x80 [ 950.161825][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.161825][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.161825][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.161825][ T10] ipv6_add_addr+0x411/0x2000 [ 950.161825][ T10] inet6_addr_add+0x30e/0xa40 [ 950.161825][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.161825][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.161825][ T10] netlink_rcv_skb+0x130/0x360 [ 950.161825][ T10] netlink_unicast+0x449/0x710 [ 950.161825][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.161825][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.161825][ T10] ___sys_sendmsg+0xee/0x170 [ 950.161825][ T10] __sys_sendmsg+0xcd/0x170 [ 950.161825][ T10] do_syscall_64+0xc6/0x1e0 [ 950.161825][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.161825][ T10] [ 950.163870][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 950.163870][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.163870][ T10] ipv6_find_idev+0x102/0x170 [ 950.163870][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.163870][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.163870][ T10] netlink_rcv_skb+0x130/0x360 [ 950.163870][ T10] netlink_unicast+0x449/0x710 [ 950.163870][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.163870][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.163870][ T10] ___sys_sendmsg+0xee/0x170 [ 950.163870][ T10] __sys_sendmsg+0xcd/0x170 [ 950.163870][ T10] do_syscall_64+0xc6/0x1e0 [ 950.163870][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.163870][ T10] [ 950.165448][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 950.165448][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.165448][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.165448][ T10] ipv6_find_idev+0x102/0x170 [ 950.165448][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.165448][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.165448][ T10] netlink_rcv_skb+0x130/0x360 [ 950.165448][ T10] netlink_unicast+0x449/0x710 [ 950.165448][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.165448][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.165448][ T10] ___sys_sendmsg+0xee/0x170 [ 950.165448][ T10] __sys_sendmsg+0xcd/0x170 [ 950.165448][ T10] do_syscall_64+0xc6/0x1e0 [ 950.165448][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.165448][ T10] [ 950.167204][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 950.167489][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 950.167489][ T10] netdev_get_by_index+0x5e/0x80 [ 950.167489][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.167489][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.167489][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.167489][ T10] ipv6_add_addr+0x411/0x2000 [ 950.167489][ T10] inet6_addr_add+0x30e/0xa40 [ 950.167489][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.167489][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.167489][ T10] netlink_rcv_skb+0x130/0x360 [ 950.167489][ T10] netlink_unicast+0x449/0x710 [ 950.167489][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.167489][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.167489][ T10] ___sys_sendmsg+0xee/0x170 [ 950.167489][ T10] __sys_sendmsg+0xcd/0x170 [ 950.167489][ T10] do_syscall_64+0xc6/0x1e0 [ 950.167489][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.167489][ T10] [ 950.169518][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 950.169518][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.169518][ T10] ipv6_find_idev+0x102/0x170 [ 950.169518][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.169518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.169518][ T10] netlink_rcv_skb+0x130/0x360 [ 950.169518][ T10] netlink_unicast+0x449/0x710 [ 950.169518][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.169518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.169518][ T10] ___sys_sendmsg+0xee/0x170 [ 950.169518][ T10] __sys_sendmsg+0xcd/0x170 [ 950.169518][ T10] do_syscall_64+0xc6/0x1e0 [ 950.169518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.169518][ T10] [ 950.171086][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 950.171086][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.171086][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.171086][ T10] ipv6_find_idev+0x102/0x170 [ 950.171086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.171086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.171086][ T10] netlink_rcv_skb+0x130/0x360 [ 950.171086][ T10] netlink_unicast+0x449/0x710 [ 950.171086][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.171086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.171086][ T10] ___sys_sendmsg+0xee/0x170 [ 950.171086][ T10] __sys_sendmsg+0xcd/0x170 [ 950.171086][ T10] do_syscall_64+0xc6/0x1e0 [ 950.171086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.171086][ T10] [ 950.172826][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 950.173106][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 950.173106][ T10] netdev_get_by_index+0x5e/0x80 [ 950.173106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.173106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.173106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.173106][ T10] ipv6_add_addr+0x411/0x2000 [ 950.173106][ T10] inet6_addr_add+0x30e/0xa40 [ 950.173106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.173106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.173106][ T10] netlink_rcv_skb+0x130/0x360 [ 950.173106][ T10] netlink_unicast+0x449/0x710 [ 950.173106][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.173106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.173106][ T10] ___sys_sendmsg+0xee/0x170 [ 950.173106][ T10] __sys_sendmsg+0xcd/0x170 [ 950.173106][ T10] do_syscall_64+0xc6/0x1e0 [ 950.173106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.173106][ T10] [ 950.175145][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 950.175145][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.175145][ T10] ipv6_find_idev+0x102/0x170 [ 950.175145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.175145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.175145][ T10] netlink_rcv_skb+0x130/0x360 [ 950.175145][ T10] netlink_unicast+0x449/0x710 [ 950.175145][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.175145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.175145][ T10] ___sys_sendmsg+0xee/0x170 [ 950.175145][ T10] __sys_sendmsg+0xcd/0x170 [ 950.175145][ T10] do_syscall_64+0xc6/0x1e0 [ 950.175145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.175145][ T10] [ 950.176742][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 950.176742][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.176742][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.176742][ T10] ipv6_find_idev+0x102/0x170 [ 950.176742][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.176742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.176742][ T10] netlink_rcv_skb+0x130/0x360 [ 950.176742][ T10] netlink_unicast+0x449/0x710 [ 950.176742][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.176742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.176742][ T10] ___sys_sendmsg+0xee/0x170 [ 950.176742][ T10] __sys_sendmsg+0xcd/0x170 [ 950.176742][ T10] do_syscall_64+0xc6/0x1e0 [ 950.176742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.176742][ T10] [ 950.178523][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 950.178813][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 950.178813][ T10] netdev_get_by_index+0x5e/0x80 [ 950.178813][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.178813][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.178813][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.178813][ T10] ipv6_add_addr+0x411/0x2000 [ 950.178813][ T10] inet6_addr_add+0x30e/0xa40 [ 950.178813][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.178813][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.178813][ T10] netlink_rcv_skb+0x130/0x360 [ 950.178813][ T10] netlink_unicast+0x449/0x710 [ 950.178813][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.178813][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.178813][ T10] ___sys_sendmsg+0xee/0x170 [ 950.178813][ T10] __sys_sendmsg+0xcd/0x170 [ 950.178813][ T10] do_syscall_64+0xc6/0x1e0 [ 950.178813][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.178813][ T10] [ 950.180858][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 950.180858][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.180858][ T10] ipv6_find_idev+0x102/0x170 [ 950.180858][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.180858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.180858][ T10] netlink_rcv_skb+0x130/0x360 [ 950.180858][ T10] netlink_unicast+0x449/0x710 [ 950.180858][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.180858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.180858][ T10] ___sys_sendmsg+0xee/0x170 [ 950.180858][ T10] __sys_sendmsg+0xcd/0x170 [ 950.180858][ T10] do_syscall_64+0xc6/0x1e0 [ 950.180858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.180858][ T10] [ 950.182426][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 950.182426][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.182426][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.182426][ T10] ipv6_find_idev+0x102/0x170 [ 950.182426][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.182426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.182426][ T10] netlink_rcv_skb+0x130/0x360 [ 950.182426][ T10] netlink_unicast+0x449/0x710 [ 950.182426][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.182426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.182426][ T10] ___sys_sendmsg+0xee/0x170 [ 950.182426][ T10] __sys_sendmsg+0xcd/0x170 [ 950.182426][ T10] do_syscall_64+0xc6/0x1e0 [ 950.182426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.182426][ T10] [ 950.184226][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 950.184584][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 950.184584][ T10] netdev_get_by_index+0x5e/0x80 [ 950.184584][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.184584][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.184584][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.184584][ T10] ipv6_add_addr+0x411/0x2000 [ 950.184584][ T10] inet6_addr_add+0x30e/0xa40 [ 950.184584][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.184584][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.184584][ T10] netlink_rcv_skb+0x130/0x360 [ 950.184584][ T10] netlink_unicast+0x449/0x710 [ 950.184584][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.184584][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.184584][ T10] ___sys_sendmsg+0xee/0x170 [ 950.184584][ T10] __sys_sendmsg+0xcd/0x170 [ 950.184584][ T10] do_syscall_64+0xc6/0x1e0 [ 950.184584][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.184584][ T10] [ 950.186621][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 950.186621][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.186621][ T10] ipv6_find_idev+0x102/0x170 [ 950.186621][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.186621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.186621][ T10] netlink_rcv_skb+0x130/0x360 [ 950.186621][ T10] netlink_unicast+0x449/0x710 [ 950.186621][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.186621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.186621][ T10] ___sys_sendmsg+0xee/0x170 [ 950.186621][ T10] __sys_sendmsg+0xcd/0x170 [ 950.186621][ T10] do_syscall_64+0xc6/0x1e0 [ 950.186621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.186621][ T10] [ 950.188370][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 950.188370][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.188370][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.188370][ T10] ipv6_find_idev+0x102/0x170 [ 950.188370][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.188370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.188370][ T10] netlink_rcv_skb+0x130/0x360 [ 950.188370][ T10] netlink_unicast+0x449/0x710 [ 950.188370][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.188370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.188370][ T10] ___sys_sendmsg+0xee/0x170 [ 950.188370][ T10] __sys_sendmsg+0xcd/0x170 [ 950.188370][ T10] do_syscall_64+0xc6/0x1e0 [ 950.188370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.188370][ T10] [ 950.190773][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 950.191129][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 950.191129][ T10] netdev_get_by_index+0x5e/0x80 [ 950.191129][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.191129][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.191129][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.191129][ T10] ipv6_add_addr+0x411/0x2000 [ 950.191129][ T10] inet6_addr_add+0x30e/0xa40 [ 950.191129][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.191129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.191129][ T10] netlink_rcv_skb+0x130/0x360 [ 950.191129][ T10] netlink_unicast+0x449/0x710 [ 950.191129][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.191129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.191129][ T10] ___sys_sendmsg+0xee/0x170 [ 950.191129][ T10] __sys_sendmsg+0xcd/0x170 [ 950.191129][ T10] do_syscall_64+0xc6/0x1e0 [ 950.191129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.191129][ T10] [ 950.193151][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 950.193151][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.193151][ T10] ipv6_find_idev+0x102/0x170 [ 950.193151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.193151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.193151][ T10] netlink_rcv_skb+0x130/0x360 [ 950.193151][ T10] netlink_unicast+0x449/0x710 [ 950.193151][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.193151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.193151][ T10] ___sys_sendmsg+0xee/0x170 [ 950.193151][ T10] __sys_sendmsg+0xcd/0x170 [ 950.193151][ T10] do_syscall_64+0xc6/0x1e0 [ 950.193151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.193151][ T10] [ 950.194775][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 950.194775][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.194775][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.194775][ T10] ipv6_find_idev+0x102/0x170 [ 950.194775][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.194775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.194775][ T10] netlink_rcv_skb+0x130/0x360 [ 950.194775][ T10] netlink_unicast+0x449/0x710 [ 950.194775][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.194775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.194775][ T10] ___sys_sendmsg+0xee/0x170 [ 950.194775][ T10] __sys_sendmsg+0xcd/0x170 [ 950.194775][ T10] do_syscall_64+0xc6/0x1e0 [ 950.194775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.194775][ T10] [ 950.196760][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 950.197055][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 950.197055][ T10] netdev_get_by_index+0x5e/0x80 [ 950.197055][ T10] fib6_nh_init+0x3d8/0x15b0 [ 950.197055][ T10] ip6_route_info_create+0xf18/0x17d0 [ 950.197055][ T10] addrconf_f6i_alloc+0x244/0x410 [ 950.197055][ T10] ipv6_add_addr+0x411/0x2000 [ 950.197055][ T10] inet6_addr_add+0x30e/0xa40 [ 950.197055][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 950.197055][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.197055][ T10] netlink_rcv_skb+0x130/0x360 [ 950.197055][ T10] netlink_unicast+0x449/0x710 [ 950.197055][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.197055][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.197055][ T10] ___sys_sendmsg+0xee/0x170 [ 950.197055][ T10] __sys_sendmsg+0xcd/0x170 [ 950.197055][ T10] do_syscall_64+0xc6/0x1e0 [ 950.197055][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.197055][ T10] [ 950.199221][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 950.199221][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 950.199221][ T10] ipv6_find_idev+0x102/0x170 [ 950.199221][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.199221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.199221][ T10] netlink_rcv_skb+0x130/0x360 [ 950.199221][ T10] netlink_unicast+0x449/0x710 [ 950.199221][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.199221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.199221][ T10] ___sys_sendmsg+0xee/0x170 [ 950.199221][ T10] __sys_sendmsg+0xcd/0x170 [ 950.199221][ T10] do_syscall_64+0xc6/0x1e0 [ 950.199221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.199221][ T10] [ 950.200970][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 950.200970][ T10] neigh_parms_alloc+0x1e5/0x510 [ 950.200970][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 950.200970][ T10] ipv6_find_idev+0x102/0x170 [ 950.200970][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 950.200970][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 950.200970][ T10] netlink_rcv_skb+0x130/0x360 [ 950.200970][ T10] netlink_unicast+0x449/0x710 [ 950.200970][ T10] netlink_sendmsg+0x723/0xbe0 [ 950.200970][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 950.200970][ T10] ___sys_sendmsg+0xee/0x170 [ 950.200970][ T10] __sys_sendmsg+0xcd/0x170 [ 950.200970][ T10] do_syscall_64+0xc6/0x1e0 [ 950.200970][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 950.200970][ T10] [ 960.275698][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 960.276065][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 960.276065][ T10] netdev_get_by_index+0x5e/0x80 [ 960.276065][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.276065][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.276065][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.276065][ T10] ipv6_add_addr+0x411/0x2000 [ 960.276065][ T10] inet6_addr_add+0x30e/0xa40 [ 960.276065][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.276065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.276065][ T10] netlink_rcv_skb+0x130/0x360 [ 960.276065][ T10] netlink_unicast+0x449/0x710 [ 960.276065][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.276065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.276065][ T10] ___sys_sendmsg+0xee/0x170 [ 960.276065][ T10] __sys_sendmsg+0xcd/0x170 [ 960.276065][ T10] do_syscall_64+0xc6/0x1e0 [ 960.276065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.276065][ T10] [ 960.278169][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 960.278169][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.278169][ T10] ipv6_find_idev+0x102/0x170 [ 960.278169][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.278169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.278169][ T10] netlink_rcv_skb+0x130/0x360 [ 960.278169][ T10] netlink_unicast+0x449/0x710 [ 960.278169][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.278169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.278169][ T10] ___sys_sendmsg+0xee/0x170 [ 960.278169][ T10] __sys_sendmsg+0xcd/0x170 [ 960.278169][ T10] do_syscall_64+0xc6/0x1e0 [ 960.278169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.278169][ T10] [ 960.279764][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 960.279764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.279764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.279764][ T10] ipv6_find_idev+0x102/0x170 [ 960.279764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.279764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.279764][ T10] netlink_rcv_skb+0x130/0x360 [ 960.279764][ T10] netlink_unicast+0x449/0x710 [ 960.279764][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.279764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.279764][ T10] ___sys_sendmsg+0xee/0x170 [ 960.279764][ T10] __sys_sendmsg+0xcd/0x170 [ 960.279764][ T10] do_syscall_64+0xc6/0x1e0 [ 960.279764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.279764][ T10] [ 960.281505][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 960.281880][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 960.281880][ T10] netdev_get_by_index+0x5e/0x80 [ 960.281880][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.281880][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.281880][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.281880][ T10] ipv6_add_addr+0x411/0x2000 [ 960.281880][ T10] inet6_addr_add+0x30e/0xa40 [ 960.281880][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.281880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.281880][ T10] netlink_rcv_skb+0x130/0x360 [ 960.281880][ T10] netlink_unicast+0x449/0x710 [ 960.281880][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.281880][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.281880][ T10] ___sys_sendmsg+0xee/0x170 [ 960.281880][ T10] __sys_sendmsg+0xcd/0x170 [ 960.281880][ T10] do_syscall_64+0xc6/0x1e0 [ 960.281880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.281880][ T10] [ 960.283915][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 960.283915][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.283915][ T10] ipv6_find_idev+0x102/0x170 [ 960.283915][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.283915][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.283915][ T10] netlink_rcv_skb+0x130/0x360 [ 960.283915][ T10] netlink_unicast+0x449/0x710 [ 960.283915][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.283915][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.283915][ T10] ___sys_sendmsg+0xee/0x170 [ 960.283915][ T10] __sys_sendmsg+0xcd/0x170 [ 960.283915][ T10] do_syscall_64+0xc6/0x1e0 [ 960.283915][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.283915][ T10] [ 960.285492][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 960.285492][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.285492][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.285492][ T10] ipv6_find_idev+0x102/0x170 [ 960.285492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.285492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.285492][ T10] netlink_rcv_skb+0x130/0x360 [ 960.285492][ T10] netlink_unicast+0x449/0x710 [ 960.285492][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.285492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.285492][ T10] ___sys_sendmsg+0xee/0x170 [ 960.285492][ T10] __sys_sendmsg+0xcd/0x170 [ 960.285492][ T10] do_syscall_64+0xc6/0x1e0 [ 960.285492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.285492][ T10] [ 960.287220][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 960.287498][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 960.287498][ T10] netdev_get_by_index+0x5e/0x80 [ 960.287498][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.287498][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.287498][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.287498][ T10] ipv6_add_addr+0x411/0x2000 [ 960.287498][ T10] inet6_addr_add+0x30e/0xa40 [ 960.287498][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.287498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.287498][ T10] netlink_rcv_skb+0x130/0x360 [ 960.287498][ T10] netlink_unicast+0x449/0x710 [ 960.287498][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.287498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.287498][ T10] ___sys_sendmsg+0xee/0x170 [ 960.287498][ T10] __sys_sendmsg+0xcd/0x170 [ 960.287498][ T10] do_syscall_64+0xc6/0x1e0 [ 960.287498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.287498][ T10] [ 960.289550][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 960.289550][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.289550][ T10] ipv6_find_idev+0x102/0x170 [ 960.289550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.289550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.289550][ T10] netlink_rcv_skb+0x130/0x360 [ 960.289550][ T10] netlink_unicast+0x449/0x710 [ 960.289550][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.289550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.289550][ T10] ___sys_sendmsg+0xee/0x170 [ 960.289550][ T10] __sys_sendmsg+0xcd/0x170 [ 960.289550][ T10] do_syscall_64+0xc6/0x1e0 [ 960.289550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.289550][ T10] [ 960.291121][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 960.291121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.291121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.291121][ T10] ipv6_find_idev+0x102/0x170 [ 960.291121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.291121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.291121][ T10] netlink_rcv_skb+0x130/0x360 [ 960.291121][ T10] netlink_unicast+0x449/0x710 [ 960.291121][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.291121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.291121][ T10] ___sys_sendmsg+0xee/0x170 [ 960.291121][ T10] __sys_sendmsg+0xcd/0x170 [ 960.291121][ T10] do_syscall_64+0xc6/0x1e0 [ 960.291121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.291121][ T10] [ 960.293283][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 960.293558][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 960.293558][ T10] netdev_get_by_index+0x5e/0x80 [ 960.293558][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.293558][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.293558][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.293558][ T10] ipv6_add_addr+0x411/0x2000 [ 960.293558][ T10] inet6_addr_add+0x30e/0xa40 [ 960.293558][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.293558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.293558][ T10] netlink_rcv_skb+0x130/0x360 [ 960.293558][ T10] netlink_unicast+0x449/0x710 [ 960.293558][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.293558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.293558][ T10] ___sys_sendmsg+0xee/0x170 [ 960.293558][ T10] __sys_sendmsg+0xcd/0x170 [ 960.293558][ T10] do_syscall_64+0xc6/0x1e0 [ 960.293558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.293558][ T10] [ 960.295780][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 960.295780][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.295780][ T10] ipv6_find_idev+0x102/0x170 [ 960.295780][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.295780][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.295780][ T10] netlink_rcv_skb+0x130/0x360 [ 960.295780][ T10] netlink_unicast+0x449/0x710 [ 960.295780][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.295780][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.295780][ T10] ___sys_sendmsg+0xee/0x170 [ 960.295780][ T10] __sys_sendmsg+0xcd/0x170 [ 960.295780][ T10] do_syscall_64+0xc6/0x1e0 [ 960.295780][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.295780][ T10] [ 960.297349][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 960.297349][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.297349][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.297349][ T10] ipv6_find_idev+0x102/0x170 [ 960.297349][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.297349][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.297349][ T10] netlink_rcv_skb+0x130/0x360 [ 960.297349][ T10] netlink_unicast+0x449/0x710 [ 960.297349][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.297349][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.297349][ T10] ___sys_sendmsg+0xee/0x170 [ 960.297349][ T10] __sys_sendmsg+0xcd/0x170 [ 960.297349][ T10] do_syscall_64+0xc6/0x1e0 [ 960.297349][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.297349][ T10] [ 960.299143][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 960.299424][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 960.299424][ T10] netdev_get_by_index+0x5e/0x80 [ 960.299424][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.299424][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.299424][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.299424][ T10] ipv6_add_addr+0x411/0x2000 [ 960.299424][ T10] inet6_addr_add+0x30e/0xa40 [ 960.299424][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.299424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.299424][ T10] netlink_rcv_skb+0x130/0x360 [ 960.299424][ T10] netlink_unicast+0x449/0x710 [ 960.299424][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.299424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.299424][ T10] ___sys_sendmsg+0xee/0x170 [ 960.299424][ T10] __sys_sendmsg+0xcd/0x170 [ 960.299424][ T10] do_syscall_64+0xc6/0x1e0 [ 960.299424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.299424][ T10] [ 960.301453][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 960.301453][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.301453][ T10] ipv6_find_idev+0x102/0x170 [ 960.301453][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.301453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.301453][ T10] netlink_rcv_skb+0x130/0x360 [ 960.301453][ T10] netlink_unicast+0x449/0x710 [ 960.301453][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.301453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.301453][ T10] ___sys_sendmsg+0xee/0x170 [ 960.301453][ T10] __sys_sendmsg+0xcd/0x170 [ 960.301453][ T10] do_syscall_64+0xc6/0x1e0 [ 960.301453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.301453][ T10] [ 960.303142][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 960.303142][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.303142][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.303142][ T10] ipv6_find_idev+0x102/0x170 [ 960.303142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.303142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.303142][ T10] netlink_rcv_skb+0x130/0x360 [ 960.303142][ T10] netlink_unicast+0x449/0x710 [ 960.303142][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.303142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.303142][ T10] ___sys_sendmsg+0xee/0x170 [ 960.303142][ T10] __sys_sendmsg+0xcd/0x170 [ 960.303142][ T10] do_syscall_64+0xc6/0x1e0 [ 960.303142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.303142][ T10] [ 960.305007][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 960.305295][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 960.305295][ T10] netdev_get_by_index+0x5e/0x80 [ 960.305295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.305295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.305295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.305295][ T10] ipv6_add_addr+0x411/0x2000 [ 960.305295][ T10] inet6_addr_add+0x30e/0xa40 [ 960.305295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.305295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.305295][ T10] netlink_rcv_skb+0x130/0x360 [ 960.305295][ T10] netlink_unicast+0x449/0x710 [ 960.305295][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.305295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.305295][ T10] ___sys_sendmsg+0xee/0x170 [ 960.305295][ T10] __sys_sendmsg+0xcd/0x170 [ 960.305295][ T10] do_syscall_64+0xc6/0x1e0 [ 960.305295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.305295][ T10] [ 960.307488][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 960.307488][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.307488][ T10] ipv6_find_idev+0x102/0x170 [ 960.307488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.307488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.307488][ T10] netlink_rcv_skb+0x130/0x360 [ 960.307488][ T10] netlink_unicast+0x449/0x710 [ 960.307488][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.307488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.307488][ T10] ___sys_sendmsg+0xee/0x170 [ 960.307488][ T10] __sys_sendmsg+0xcd/0x170 [ 960.307488][ T10] do_syscall_64+0xc6/0x1e0 [ 960.307488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.307488][ T10] [ 960.309221][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 960.309221][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.309221][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.309221][ T10] ipv6_find_idev+0x102/0x170 [ 960.309221][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.309221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.309221][ T10] netlink_rcv_skb+0x130/0x360 [ 960.309221][ T10] netlink_unicast+0x449/0x710 [ 960.309221][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.309221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.309221][ T10] ___sys_sendmsg+0xee/0x170 [ 960.309221][ T10] __sys_sendmsg+0xcd/0x170 [ 960.309221][ T10] do_syscall_64+0xc6/0x1e0 [ 960.309221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.309221][ T10] [ 960.311214][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 960.311536][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 960.311536][ T10] netdev_get_by_index+0x5e/0x80 [ 960.311536][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.311536][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.311536][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.311536][ T10] ipv6_add_addr+0x411/0x2000 [ 960.311536][ T10] inet6_addr_add+0x30e/0xa40 [ 960.311536][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.311536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.311536][ T10] netlink_rcv_skb+0x130/0x360 [ 960.311536][ T10] netlink_unicast+0x449/0x710 [ 960.311536][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.311536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.311536][ T10] ___sys_sendmsg+0xee/0x170 [ 960.311536][ T10] __sys_sendmsg+0xcd/0x170 [ 960.311536][ T10] do_syscall_64+0xc6/0x1e0 [ 960.311536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.311536][ T10] [ 960.313947][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 960.313947][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.313947][ T10] ipv6_find_idev+0x102/0x170 [ 960.313947][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.313947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.313947][ T10] netlink_rcv_skb+0x130/0x360 [ 960.313947][ T10] netlink_unicast+0x449/0x710 [ 960.313947][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.313947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.313947][ T10] ___sys_sendmsg+0xee/0x170 [ 960.313947][ T10] __sys_sendmsg+0xcd/0x170 [ 960.313947][ T10] do_syscall_64+0xc6/0x1e0 [ 960.313947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.313947][ T10] [ 960.315713][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 960.315713][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.315713][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.315713][ T10] ipv6_find_idev+0x102/0x170 [ 960.315713][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.315713][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.315713][ T10] netlink_rcv_skb+0x130/0x360 [ 960.315713][ T10] netlink_unicast+0x449/0x710 [ 960.315713][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.315713][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.315713][ T10] ___sys_sendmsg+0xee/0x170 [ 960.315713][ T10] __sys_sendmsg+0xcd/0x170 [ 960.315713][ T10] do_syscall_64+0xc6/0x1e0 [ 960.315713][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.315713][ T10] [ 960.317679][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 960.317958][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 960.317958][ T10] netdev_get_by_index+0x5e/0x80 [ 960.317958][ T10] fib6_nh_init+0x3d8/0x15b0 [ 960.317958][ T10] ip6_route_info_create+0xf18/0x17d0 [ 960.317958][ T10] addrconf_f6i_alloc+0x244/0x410 [ 960.317958][ T10] ipv6_add_addr+0x411/0x2000 [ 960.317958][ T10] inet6_addr_add+0x30e/0xa40 [ 960.317958][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 960.317958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.317958][ T10] netlink_rcv_skb+0x130/0x360 [ 960.317958][ T10] netlink_unicast+0x449/0x710 [ 960.317958][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.317958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.317958][ T10] ___sys_sendmsg+0xee/0x170 [ 960.317958][ T10] __sys_sendmsg+0xcd/0x170 [ 960.317958][ T10] do_syscall_64+0xc6/0x1e0 [ 960.317958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.317958][ T10] [ 960.320211][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 960.320211][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 960.320211][ T10] ipv6_find_idev+0x102/0x170 [ 960.320211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.320211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.320211][ T10] netlink_rcv_skb+0x130/0x360 [ 960.320211][ T10] netlink_unicast+0x449/0x710 [ 960.320211][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.320211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.320211][ T10] ___sys_sendmsg+0xee/0x170 [ 960.320211][ T10] __sys_sendmsg+0xcd/0x170 [ 960.320211][ T10] do_syscall_64+0xc6/0x1e0 [ 960.320211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.320211][ T10] [ 960.321839][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 960.321839][ T10] neigh_parms_alloc+0x1e5/0x510 [ 960.321839][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 960.321839][ T10] ipv6_find_idev+0x102/0x170 [ 960.321839][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 960.321839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 960.321839][ T10] netlink_rcv_skb+0x130/0x360 [ 960.321839][ T10] netlink_unicast+0x449/0x710 [ 960.321839][ T10] netlink_sendmsg+0x723/0xbe0 [ 960.321839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 960.321839][ T10] ___sys_sendmsg+0xee/0x170 [ 960.321839][ T10] __sys_sendmsg+0xcd/0x170 [ 960.321839][ T10] do_syscall_64+0xc6/0x1e0 [ 960.321839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 960.321839][ T10] [ 970.459668][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 970.460068][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 970.460068][ T10] netdev_get_by_index+0x5e/0x80 [ 970.460068][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.460068][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.460068][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.460068][ T10] ipv6_add_addr+0x411/0x2000 [ 970.460068][ T10] inet6_addr_add+0x30e/0xa40 [ 970.460068][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.460068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.460068][ T10] netlink_rcv_skb+0x130/0x360 [ 970.460068][ T10] netlink_unicast+0x449/0x710 [ 970.460068][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.460068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.460068][ T10] ___sys_sendmsg+0xee/0x170 [ 970.460068][ T10] __sys_sendmsg+0xcd/0x170 [ 970.460068][ T10] do_syscall_64+0xc6/0x1e0 [ 970.460068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.460068][ T10] [ 970.462373][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 970.462373][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.462373][ T10] ipv6_find_idev+0x102/0x170 [ 970.462373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.462373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.462373][ T10] netlink_rcv_skb+0x130/0x360 [ 970.462373][ T10] netlink_unicast+0x449/0x710 [ 970.462373][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.462373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.462373][ T10] ___sys_sendmsg+0xee/0x170 [ 970.462373][ T10] __sys_sendmsg+0xcd/0x170 [ 970.462373][ T10] do_syscall_64+0xc6/0x1e0 [ 970.462373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.462373][ T10] [ 970.464163][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 970.464163][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.464163][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.464163][ T10] ipv6_find_idev+0x102/0x170 [ 970.464163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.464163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.464163][ T10] netlink_rcv_skb+0x130/0x360 [ 970.464163][ T10] netlink_unicast+0x449/0x710 [ 970.464163][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.464163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.464163][ T10] ___sys_sendmsg+0xee/0x170 [ 970.464163][ T10] __sys_sendmsg+0xcd/0x170 [ 970.464163][ T10] do_syscall_64+0xc6/0x1e0 [ 970.464163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.464163][ T10] [ 970.466102][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 970.466408][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 970.466408][ T10] netdev_get_by_index+0x5e/0x80 [ 970.466408][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.466408][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.466408][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.466408][ T10] ipv6_add_addr+0x411/0x2000 [ 970.466408][ T10] inet6_addr_add+0x30e/0xa40 [ 970.466408][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.466408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.466408][ T10] netlink_rcv_skb+0x130/0x360 [ 970.466408][ T10] netlink_unicast+0x449/0x710 [ 970.466408][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.466408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.466408][ T10] ___sys_sendmsg+0xee/0x170 [ 970.466408][ T10] __sys_sendmsg+0xcd/0x170 [ 970.466408][ T10] do_syscall_64+0xc6/0x1e0 [ 970.466408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.466408][ T10] [ 970.468741][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 970.468741][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.468741][ T10] ipv6_find_idev+0x102/0x170 [ 970.468741][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.468741][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.468741][ T10] netlink_rcv_skb+0x130/0x360 [ 970.468741][ T10] netlink_unicast+0x449/0x710 [ 970.468741][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.468741][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.468741][ T10] ___sys_sendmsg+0xee/0x170 [ 970.468741][ T10] __sys_sendmsg+0xcd/0x170 [ 970.468741][ T10] do_syscall_64+0xc6/0x1e0 [ 970.468741][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.468741][ T10] [ 970.470499][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 970.470499][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.470499][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.470499][ T10] ipv6_find_idev+0x102/0x170 [ 970.470499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.470499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.470499][ T10] netlink_rcv_skb+0x130/0x360 [ 970.470499][ T10] netlink_unicast+0x449/0x710 [ 970.470499][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.470499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.470499][ T10] ___sys_sendmsg+0xee/0x170 [ 970.470499][ T10] __sys_sendmsg+0xcd/0x170 [ 970.470499][ T10] do_syscall_64+0xc6/0x1e0 [ 970.470499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.470499][ T10] [ 970.472916][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 970.473220][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 970.473220][ T10] netdev_get_by_index+0x5e/0x80 [ 970.473220][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.473220][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.473220][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.473220][ T10] ipv6_add_addr+0x411/0x2000 [ 970.473220][ T10] inet6_addr_add+0x30e/0xa40 [ 970.473220][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.473220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.473220][ T10] netlink_rcv_skb+0x130/0x360 [ 970.473220][ T10] netlink_unicast+0x449/0x710 [ 970.473220][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.473220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.473220][ T10] ___sys_sendmsg+0xee/0x170 [ 970.473220][ T10] __sys_sendmsg+0xcd/0x170 [ 970.473220][ T10] do_syscall_64+0xc6/0x1e0 [ 970.473220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.473220][ T10] [ 970.475557][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 970.475557][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.475557][ T10] ipv6_find_idev+0x102/0x170 [ 970.475557][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.475557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.475557][ T10] netlink_rcv_skb+0x130/0x360 [ 970.475557][ T10] netlink_unicast+0x449/0x710 [ 970.475557][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.475557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.475557][ T10] ___sys_sendmsg+0xee/0x170 [ 970.475557][ T10] __sys_sendmsg+0xcd/0x170 [ 970.475557][ T10] do_syscall_64+0xc6/0x1e0 [ 970.475557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.475557][ T10] [ 970.477318][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 970.477318][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.477318][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.477318][ T10] ipv6_find_idev+0x102/0x170 [ 970.477318][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.477318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.477318][ T10] netlink_rcv_skb+0x130/0x360 [ 970.477318][ T10] netlink_unicast+0x449/0x710 [ 970.477318][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.477318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.477318][ T10] ___sys_sendmsg+0xee/0x170 [ 970.477318][ T10] __sys_sendmsg+0xcd/0x170 [ 970.477318][ T10] do_syscall_64+0xc6/0x1e0 [ 970.477318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.477318][ T10] [ 970.479288][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 970.479589][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 970.479589][ T10] netdev_get_by_index+0x5e/0x80 [ 970.479589][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.479589][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.479589][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.479589][ T10] ipv6_add_addr+0x411/0x2000 [ 970.479589][ T10] inet6_addr_add+0x30e/0xa40 [ 970.479589][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.479589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.479589][ T10] netlink_rcv_skb+0x130/0x360 [ 970.479589][ T10] netlink_unicast+0x449/0x710 [ 970.479589][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.479589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.479589][ T10] ___sys_sendmsg+0xee/0x170 [ 970.479589][ T10] __sys_sendmsg+0xcd/0x170 [ 970.479589][ T10] do_syscall_64+0xc6/0x1e0 [ 970.479589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.479589][ T10] [ 970.481822][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 970.481822][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.481822][ T10] ipv6_find_idev+0x102/0x170 [ 970.481822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.481822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.481822][ T10] netlink_rcv_skb+0x130/0x360 [ 970.481822][ T10] netlink_unicast+0x449/0x710 [ 970.481822][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.481822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.481822][ T10] ___sys_sendmsg+0xee/0x170 [ 970.481822][ T10] __sys_sendmsg+0xcd/0x170 [ 970.481822][ T10] do_syscall_64+0xc6/0x1e0 [ 970.481822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.481822][ T10] [ 970.483557][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 970.483557][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.483557][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.483557][ T10] ipv6_find_idev+0x102/0x170 [ 970.483557][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.483557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.483557][ T10] netlink_rcv_skb+0x130/0x360 [ 970.483557][ T10] netlink_unicast+0x449/0x710 [ 970.483557][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.483557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.483557][ T10] ___sys_sendmsg+0xee/0x170 [ 970.483557][ T10] __sys_sendmsg+0xcd/0x170 [ 970.483557][ T10] do_syscall_64+0xc6/0x1e0 [ 970.483557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.483557][ T10] [ 970.485802][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 970.486171][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 970.486171][ T10] netdev_get_by_index+0x5e/0x80 [ 970.486171][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.486171][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.486171][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.486171][ T10] ipv6_add_addr+0x411/0x2000 [ 970.486171][ T10] inet6_addr_add+0x30e/0xa40 [ 970.486171][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.486171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.486171][ T10] netlink_rcv_skb+0x130/0x360 [ 970.486171][ T10] netlink_unicast+0x449/0x710 [ 970.486171][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.486171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.486171][ T10] ___sys_sendmsg+0xee/0x170 [ 970.486171][ T10] __sys_sendmsg+0xcd/0x170 [ 970.486171][ T10] do_syscall_64+0xc6/0x1e0 [ 970.486171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.486171][ T10] [ 970.488470][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 970.488470][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.488470][ T10] ipv6_find_idev+0x102/0x170 [ 970.488470][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.488470][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.488470][ T10] netlink_rcv_skb+0x130/0x360 [ 970.488470][ T10] netlink_unicast+0x449/0x710 [ 970.488470][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.488470][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.488470][ T10] ___sys_sendmsg+0xee/0x170 [ 970.488470][ T10] __sys_sendmsg+0xcd/0x170 [ 970.488470][ T10] do_syscall_64+0xc6/0x1e0 [ 970.488470][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.488470][ T10] [ 970.490380][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 970.490380][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.490380][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.490380][ T10] ipv6_find_idev+0x102/0x170 [ 970.490380][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.490380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.490380][ T10] netlink_rcv_skb+0x130/0x360 [ 970.490380][ T10] netlink_unicast+0x449/0x710 [ 970.490380][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.490380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.490380][ T10] ___sys_sendmsg+0xee/0x170 [ 970.490380][ T10] __sys_sendmsg+0xcd/0x170 [ 970.490380][ T10] do_syscall_64+0xc6/0x1e0 [ 970.490380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.490380][ T10] [ 970.492535][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 970.492943][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 970.492943][ T10] netdev_get_by_index+0x5e/0x80 [ 970.492943][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.492943][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.492943][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.492943][ T10] ipv6_add_addr+0x411/0x2000 [ 970.492943][ T10] inet6_addr_add+0x30e/0xa40 [ 970.492943][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.492943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.492943][ T10] netlink_rcv_skb+0x130/0x360 [ 970.492943][ T10] netlink_unicast+0x449/0x710 [ 970.492943][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.492943][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.492943][ T10] ___sys_sendmsg+0xee/0x170 [ 970.492943][ T10] __sys_sendmsg+0xcd/0x170 [ 970.492943][ T10] do_syscall_64+0xc6/0x1e0 [ 970.492943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.492943][ T10] [ 970.495347][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 970.495347][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.495347][ T10] ipv6_find_idev+0x102/0x170 [ 970.495347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.495347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.495347][ T10] netlink_rcv_skb+0x130/0x360 [ 970.495347][ T10] netlink_unicast+0x449/0x710 [ 970.495347][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.495347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.495347][ T10] ___sys_sendmsg+0xee/0x170 [ 970.495347][ T10] __sys_sendmsg+0xcd/0x170 [ 970.495347][ T10] do_syscall_64+0xc6/0x1e0 [ 970.495347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.495347][ T10] [ 970.497230][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 970.497230][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.497230][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.497230][ T10] ipv6_find_idev+0x102/0x170 [ 970.497230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.497230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.497230][ T10] netlink_rcv_skb+0x130/0x360 [ 970.497230][ T10] netlink_unicast+0x449/0x710 [ 970.497230][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.497230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.497230][ T10] ___sys_sendmsg+0xee/0x170 [ 970.497230][ T10] __sys_sendmsg+0xcd/0x170 [ 970.497230][ T10] do_syscall_64+0xc6/0x1e0 [ 970.497230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.497230][ T10] [ 970.499374][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 970.499784][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 970.499784][ T10] netdev_get_by_index+0x5e/0x80 [ 970.499784][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.499784][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.499784][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.499784][ T10] ipv6_add_addr+0x411/0x2000 [ 970.499784][ T10] inet6_addr_add+0x30e/0xa40 [ 970.499784][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.499784][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.499784][ T10] netlink_rcv_skb+0x130/0x360 [ 970.499784][ T10] netlink_unicast+0x449/0x710 [ 970.499784][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.499784][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.499784][ T10] ___sys_sendmsg+0xee/0x170 [ 970.499784][ T10] __sys_sendmsg+0xcd/0x170 [ 970.499784][ T10] do_syscall_64+0xc6/0x1e0 [ 970.499784][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.499784][ T10] [ 970.502124][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 970.502124][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.502124][ T10] ipv6_find_idev+0x102/0x170 [ 970.502124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.502124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.502124][ T10] netlink_rcv_skb+0x130/0x360 [ 970.502124][ T10] netlink_unicast+0x449/0x710 [ 970.502124][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.502124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.502124][ T10] ___sys_sendmsg+0xee/0x170 [ 970.502124][ T10] __sys_sendmsg+0xcd/0x170 [ 970.502124][ T10] do_syscall_64+0xc6/0x1e0 [ 970.502124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.502124][ T10] [ 970.504012][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 970.504012][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.504012][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.504012][ T10] ipv6_find_idev+0x102/0x170 [ 970.504012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.504012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.504012][ T10] netlink_rcv_skb+0x130/0x360 [ 970.504012][ T10] netlink_unicast+0x449/0x710 [ 970.504012][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.504012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.504012][ T10] ___sys_sendmsg+0xee/0x170 [ 970.504012][ T10] __sys_sendmsg+0xcd/0x170 [ 970.504012][ T10] do_syscall_64+0xc6/0x1e0 [ 970.504012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.504012][ T10] [ 970.506081][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 970.506383][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 970.506383][ T10] netdev_get_by_index+0x5e/0x80 [ 970.506383][ T10] fib6_nh_init+0x3d8/0x15b0 [ 970.506383][ T10] ip6_route_info_create+0xf18/0x17d0 [ 970.506383][ T10] addrconf_f6i_alloc+0x244/0x410 [ 970.506383][ T10] ipv6_add_addr+0x411/0x2000 [ 970.506383][ T10] inet6_addr_add+0x30e/0xa40 [ 970.506383][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 970.506383][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.506383][ T10] netlink_rcv_skb+0x130/0x360 [ 970.506383][ T10] netlink_unicast+0x449/0x710 [ 970.506383][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.506383][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.506383][ T10] ___sys_sendmsg+0xee/0x170 [ 970.506383][ T10] __sys_sendmsg+0xcd/0x170 [ 970.506383][ T10] do_syscall_64+0xc6/0x1e0 [ 970.506383][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.506383][ T10] [ 970.508684][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 970.508684][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 970.508684][ T10] ipv6_find_idev+0x102/0x170 [ 970.508684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.508684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.508684][ T10] netlink_rcv_skb+0x130/0x360 [ 970.508684][ T10] netlink_unicast+0x449/0x710 [ 970.508684][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.508684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.508684][ T10] ___sys_sendmsg+0xee/0x170 [ 970.508684][ T10] __sys_sendmsg+0xcd/0x170 [ 970.508684][ T10] do_syscall_64+0xc6/0x1e0 [ 970.508684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.508684][ T10] [ 970.510560][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 970.510560][ T10] neigh_parms_alloc+0x1e5/0x510 [ 970.510560][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 970.510560][ T10] ipv6_find_idev+0x102/0x170 [ 970.510560][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 970.510560][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 970.510560][ T10] netlink_rcv_skb+0x130/0x360 [ 970.510560][ T10] netlink_unicast+0x449/0x710 [ 970.510560][ T10] netlink_sendmsg+0x723/0xbe0 [ 970.510560][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 970.510560][ T10] ___sys_sendmsg+0xee/0x170 [ 970.510560][ T10] __sys_sendmsg+0xcd/0x170 [ 970.510560][ T10] do_syscall_64+0xc6/0x1e0 [ 970.510560][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 970.510560][ T10] [ 980.587783][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 980.588159][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 980.588159][ T10] netdev_get_by_index+0x5e/0x80 [ 980.588159][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.588159][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.588159][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.588159][ T10] ipv6_add_addr+0x411/0x2000 [ 980.588159][ T10] inet6_addr_add+0x30e/0xa40 [ 980.588159][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.588159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.588159][ T10] netlink_rcv_skb+0x130/0x360 [ 980.588159][ T10] netlink_unicast+0x449/0x710 [ 980.588159][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.588159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.588159][ T10] ___sys_sendmsg+0xee/0x170 [ 980.588159][ T10] __sys_sendmsg+0xcd/0x170 [ 980.588159][ T10] do_syscall_64+0xc6/0x1e0 [ 980.588159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.588159][ T10] [ 980.590249][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 980.590249][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.590249][ T10] ipv6_find_idev+0x102/0x170 [ 980.590249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.590249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.590249][ T10] netlink_rcv_skb+0x130/0x360 [ 980.590249][ T10] netlink_unicast+0x449/0x710 [ 980.590249][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.590249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.590249][ T10] ___sys_sendmsg+0xee/0x170 [ 980.590249][ T10] __sys_sendmsg+0xcd/0x170 [ 980.590249][ T10] do_syscall_64+0xc6/0x1e0 [ 980.590249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.590249][ T10] [ 980.591835][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 980.591835][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.591835][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.591835][ T10] ipv6_find_idev+0x102/0x170 [ 980.591835][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.591835][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.591835][ T10] netlink_rcv_skb+0x130/0x360 [ 980.591835][ T10] netlink_unicast+0x449/0x710 [ 980.591835][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.591835][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.591835][ T10] ___sys_sendmsg+0xee/0x170 [ 980.591835][ T10] __sys_sendmsg+0xcd/0x170 [ 980.591835][ T10] do_syscall_64+0xc6/0x1e0 [ 980.591835][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.591835][ T10] [ 980.593571][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 980.593865][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 980.593865][ T10] netdev_get_by_index+0x5e/0x80 [ 980.593865][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.593865][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.593865][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.593865][ T10] ipv6_add_addr+0x411/0x2000 [ 980.593865][ T10] inet6_addr_add+0x30e/0xa40 [ 980.593865][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.593865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.593865][ T10] netlink_rcv_skb+0x130/0x360 [ 980.593865][ T10] netlink_unicast+0x449/0x710 [ 980.593865][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.593865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.593865][ T10] ___sys_sendmsg+0xee/0x170 [ 980.593865][ T10] __sys_sendmsg+0xcd/0x170 [ 980.593865][ T10] do_syscall_64+0xc6/0x1e0 [ 980.593865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.593865][ T10] [ 980.595903][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 980.595903][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.595903][ T10] ipv6_find_idev+0x102/0x170 [ 980.595903][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.595903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.595903][ T10] netlink_rcv_skb+0x130/0x360 [ 980.595903][ T10] netlink_unicast+0x449/0x710 [ 980.595903][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.595903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.595903][ T10] ___sys_sendmsg+0xee/0x170 [ 980.595903][ T10] __sys_sendmsg+0xcd/0x170 [ 980.595903][ T10] do_syscall_64+0xc6/0x1e0 [ 980.595903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.595903][ T10] [ 980.597464][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 980.597464][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.597464][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.597464][ T10] ipv6_find_idev+0x102/0x170 [ 980.597464][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.597464][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.597464][ T10] netlink_rcv_skb+0x130/0x360 [ 980.597464][ T10] netlink_unicast+0x449/0x710 [ 980.597464][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.597464][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.597464][ T10] ___sys_sendmsg+0xee/0x170 [ 980.597464][ T10] __sys_sendmsg+0xcd/0x170 [ 980.597464][ T10] do_syscall_64+0xc6/0x1e0 [ 980.597464][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.597464][ T10] [ 980.599169][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 980.599442][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 980.599442][ T10] netdev_get_by_index+0x5e/0x80 [ 980.599442][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.599442][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.599442][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.599442][ T10] ipv6_add_addr+0x411/0x2000 [ 980.599442][ T10] inet6_addr_add+0x30e/0xa40 [ 980.599442][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.599442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.599442][ T10] netlink_rcv_skb+0x130/0x360 [ 980.599442][ T10] netlink_unicast+0x449/0x710 [ 980.599442][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.599442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.599442][ T10] ___sys_sendmsg+0xee/0x170 [ 980.599442][ T10] __sys_sendmsg+0xcd/0x170 [ 980.599442][ T10] do_syscall_64+0xc6/0x1e0 [ 980.599442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.599442][ T10] [ 980.601548][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 980.601548][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.601548][ T10] ipv6_find_idev+0x102/0x170 [ 980.601548][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.601548][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.601548][ T10] netlink_rcv_skb+0x130/0x360 [ 980.601548][ T10] netlink_unicast+0x449/0x710 [ 980.601548][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.601548][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.601548][ T10] ___sys_sendmsg+0xee/0x170 [ 980.601548][ T10] __sys_sendmsg+0xcd/0x170 [ 980.601548][ T10] do_syscall_64+0xc6/0x1e0 [ 980.601548][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.601548][ T10] [ 980.603210][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 980.603210][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.603210][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.603210][ T10] ipv6_find_idev+0x102/0x170 [ 980.603210][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.603210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.603210][ T10] netlink_rcv_skb+0x130/0x360 [ 980.603210][ T10] netlink_unicast+0x449/0x710 [ 980.603210][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.603210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.603210][ T10] ___sys_sendmsg+0xee/0x170 [ 980.603210][ T10] __sys_sendmsg+0xcd/0x170 [ 980.603210][ T10] do_syscall_64+0xc6/0x1e0 [ 980.603210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.603210][ T10] [ 980.605253][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 980.605526][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 980.605526][ T10] netdev_get_by_index+0x5e/0x80 [ 980.605526][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.605526][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.605526][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.605526][ T10] ipv6_add_addr+0x411/0x2000 [ 980.605526][ T10] inet6_addr_add+0x30e/0xa40 [ 980.605526][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.605526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.605526][ T10] netlink_rcv_skb+0x130/0x360 [ 980.605526][ T10] netlink_unicast+0x449/0x710 [ 980.605526][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.605526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.605526][ T10] ___sys_sendmsg+0xee/0x170 [ 980.605526][ T10] __sys_sendmsg+0xcd/0x170 [ 980.605526][ T10] do_syscall_64+0xc6/0x1e0 [ 980.605526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.605526][ T10] [ 980.607843][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 980.607843][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.607843][ T10] ipv6_find_idev+0x102/0x170 [ 980.607843][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.607843][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.607843][ T10] netlink_rcv_skb+0x130/0x360 [ 980.607843][ T10] netlink_unicast+0x449/0x710 [ 980.607843][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.607843][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.607843][ T10] ___sys_sendmsg+0xee/0x170 [ 980.607843][ T10] __sys_sendmsg+0xcd/0x170 [ 980.607843][ T10] do_syscall_64+0xc6/0x1e0 [ 980.607843][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.607843][ T10] [ 980.609622][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 980.609622][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.609622][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.609622][ T10] ipv6_find_idev+0x102/0x170 [ 980.609622][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.609622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.609622][ T10] netlink_rcv_skb+0x130/0x360 [ 980.609622][ T10] netlink_unicast+0x449/0x710 [ 980.609622][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.609622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.609622][ T10] ___sys_sendmsg+0xee/0x170 [ 980.609622][ T10] __sys_sendmsg+0xcd/0x170 [ 980.609622][ T10] do_syscall_64+0xc6/0x1e0 [ 980.609622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.609622][ T10] [ 980.611605][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 980.612330][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 980.612330][ T10] netdev_get_by_index+0x5e/0x80 [ 980.612330][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.612330][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.612330][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.612330][ T10] ipv6_add_addr+0x411/0x2000 [ 980.612330][ T10] inet6_addr_add+0x30e/0xa40 [ 980.612330][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.612330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.612330][ T10] netlink_rcv_skb+0x130/0x360 [ 980.612330][ T10] netlink_unicast+0x449/0x710 [ 980.612330][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.612330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.612330][ T10] ___sys_sendmsg+0xee/0x170 [ 980.612330][ T10] __sys_sendmsg+0xcd/0x170 [ 980.612330][ T10] do_syscall_64+0xc6/0x1e0 [ 980.612330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.612330][ T10] [ 980.614382][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 980.614382][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.614382][ T10] ipv6_find_idev+0x102/0x170 [ 980.614382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.614382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.614382][ T10] netlink_rcv_skb+0x130/0x360 [ 980.614382][ T10] netlink_unicast+0x449/0x710 [ 980.614382][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.614382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.614382][ T10] ___sys_sendmsg+0xee/0x170 [ 980.614382][ T10] __sys_sendmsg+0xcd/0x170 [ 980.614382][ T10] do_syscall_64+0xc6/0x1e0 [ 980.614382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.614382][ T10] [ 980.615945][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 980.615945][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.615945][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.615945][ T10] ipv6_find_idev+0x102/0x170 [ 980.615945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.615945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.615945][ T10] netlink_rcv_skb+0x130/0x360 [ 980.615945][ T10] netlink_unicast+0x449/0x710 [ 980.615945][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.615945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.615945][ T10] ___sys_sendmsg+0xee/0x170 [ 980.615945][ T10] __sys_sendmsg+0xcd/0x170 [ 980.615945][ T10] do_syscall_64+0xc6/0x1e0 [ 980.615945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.615945][ T10] [ 980.617842][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 980.618159][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 980.618159][ T10] netdev_get_by_index+0x5e/0x80 [ 980.618159][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.618159][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.618159][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.618159][ T10] ipv6_add_addr+0x411/0x2000 [ 980.618159][ T10] inet6_addr_add+0x30e/0xa40 [ 980.618159][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.618159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.618159][ T10] netlink_rcv_skb+0x130/0x360 [ 980.618159][ T10] netlink_unicast+0x449/0x710 [ 980.618159][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.618159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.618159][ T10] ___sys_sendmsg+0xee/0x170 [ 980.618159][ T10] __sys_sendmsg+0xcd/0x170 [ 980.618159][ T10] do_syscall_64+0xc6/0x1e0 [ 980.618159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.618159][ T10] [ 980.620262][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 980.620262][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.620262][ T10] ipv6_find_idev+0x102/0x170 [ 980.620262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.620262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.620262][ T10] netlink_rcv_skb+0x130/0x360 [ 980.620262][ T10] netlink_unicast+0x449/0x710 [ 980.620262][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.620262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.620262][ T10] ___sys_sendmsg+0xee/0x170 [ 980.620262][ T10] __sys_sendmsg+0xcd/0x170 [ 980.620262][ T10] do_syscall_64+0xc6/0x1e0 [ 980.620262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.620262][ T10] [ 980.621897][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 980.621897][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.621897][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.621897][ T10] ipv6_find_idev+0x102/0x170 [ 980.621897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.621897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.621897][ T10] netlink_rcv_skb+0x130/0x360 [ 980.621897][ T10] netlink_unicast+0x449/0x710 [ 980.621897][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.621897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.621897][ T10] ___sys_sendmsg+0xee/0x170 [ 980.621897][ T10] __sys_sendmsg+0xcd/0x170 [ 980.621897][ T10] do_syscall_64+0xc6/0x1e0 [ 980.621897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.621897][ T10] [ 980.623958][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 980.624280][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 980.624280][ T10] netdev_get_by_index+0x5e/0x80 [ 980.624280][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.624280][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.624280][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.624280][ T10] ipv6_add_addr+0x411/0x2000 [ 980.624280][ T10] inet6_addr_add+0x30e/0xa40 [ 980.624280][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.624280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.624280][ T10] netlink_rcv_skb+0x130/0x360 [ 980.624280][ T10] netlink_unicast+0x449/0x710 [ 980.624280][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.624280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.624280][ T10] ___sys_sendmsg+0xee/0x170 [ 980.624280][ T10] __sys_sendmsg+0xcd/0x170 [ 980.624280][ T10] do_syscall_64+0xc6/0x1e0 [ 980.624280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.624280][ T10] [ 980.626317][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 980.626317][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.626317][ T10] ipv6_find_idev+0x102/0x170 [ 980.626317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.626317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.626317][ T10] netlink_rcv_skb+0x130/0x360 [ 980.626317][ T10] netlink_unicast+0x449/0x710 [ 980.626317][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.626317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.626317][ T10] ___sys_sendmsg+0xee/0x170 [ 980.626317][ T10] __sys_sendmsg+0xcd/0x170 [ 980.626317][ T10] do_syscall_64+0xc6/0x1e0 [ 980.626317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.626317][ T10] [ 980.627890][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 980.627890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.627890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.627890][ T10] ipv6_find_idev+0x102/0x170 [ 980.627890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.627890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.627890][ T10] netlink_rcv_skb+0x130/0x360 [ 980.627890][ T10] netlink_unicast+0x449/0x710 [ 980.627890][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.627890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.627890][ T10] ___sys_sendmsg+0xee/0x170 [ 980.627890][ T10] __sys_sendmsg+0xcd/0x170 [ 980.627890][ T10] do_syscall_64+0xc6/0x1e0 [ 980.627890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.627890][ T10] [ 980.629797][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 980.630113][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 980.630113][ T10] netdev_get_by_index+0x5e/0x80 [ 980.630113][ T10] fib6_nh_init+0x3d8/0x15b0 [ 980.630113][ T10] ip6_route_info_create+0xf18/0x17d0 [ 980.630113][ T10] addrconf_f6i_alloc+0x244/0x410 [ 980.630113][ T10] ipv6_add_addr+0x411/0x2000 [ 980.630113][ T10] inet6_addr_add+0x30e/0xa40 [ 980.630113][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 980.630113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.630113][ T10] netlink_rcv_skb+0x130/0x360 [ 980.630113][ T10] netlink_unicast+0x449/0x710 [ 980.630113][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.630113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.630113][ T10] ___sys_sendmsg+0xee/0x170 [ 980.630113][ T10] __sys_sendmsg+0xcd/0x170 [ 980.630113][ T10] do_syscall_64+0xc6/0x1e0 [ 980.630113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.630113][ T10] [ 980.632373][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 980.632373][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 980.632373][ T10] ipv6_find_idev+0x102/0x170 [ 980.632373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.632373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.632373][ T10] netlink_rcv_skb+0x130/0x360 [ 980.632373][ T10] netlink_unicast+0x449/0x710 [ 980.632373][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.632373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.632373][ T10] ___sys_sendmsg+0xee/0x170 [ 980.632373][ T10] __sys_sendmsg+0xcd/0x170 [ 980.632373][ T10] do_syscall_64+0xc6/0x1e0 [ 980.632373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.632373][ T10] [ 980.634221][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 980.634221][ T10] neigh_parms_alloc+0x1e5/0x510 [ 980.634221][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 980.634221][ T10] ipv6_find_idev+0x102/0x170 [ 980.634221][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 980.634221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 980.634221][ T10] netlink_rcv_skb+0x130/0x360 [ 980.634221][ T10] netlink_unicast+0x449/0x710 [ 980.634221][ T10] netlink_sendmsg+0x723/0xbe0 [ 980.634221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 980.634221][ T10] ___sys_sendmsg+0xee/0x170 [ 980.634221][ T10] __sys_sendmsg+0xcd/0x170 [ 980.634221][ T10] do_syscall_64+0xc6/0x1e0 [ 980.634221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 980.634221][ T10] [ 990.723748][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 990.724090][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 990.724090][ T10] netdev_get_by_index+0x5e/0x80 [ 990.724090][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.724090][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.724090][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.724090][ T10] ipv6_add_addr+0x411/0x2000 [ 990.724090][ T10] inet6_addr_add+0x30e/0xa40 [ 990.724090][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.724090][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.724090][ T10] netlink_rcv_skb+0x130/0x360 [ 990.724090][ T10] netlink_unicast+0x449/0x710 [ 990.724090][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.724090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.724090][ T10] ___sys_sendmsg+0xee/0x170 [ 990.724090][ T10] __sys_sendmsg+0xcd/0x170 [ 990.724090][ T10] do_syscall_64+0xc6/0x1e0 [ 990.724090][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.724090][ T10] [ 990.726150][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 990.726150][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.726150][ T10] ipv6_find_idev+0x102/0x170 [ 990.726150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.726150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.726150][ T10] netlink_rcv_skb+0x130/0x360 [ 990.726150][ T10] netlink_unicast+0x449/0x710 [ 990.726150][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.726150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.726150][ T10] ___sys_sendmsg+0xee/0x170 [ 990.726150][ T10] __sys_sendmsg+0xcd/0x170 [ 990.726150][ T10] do_syscall_64+0xc6/0x1e0 [ 990.726150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.726150][ T10] [ 990.727718][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 990.727718][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.727718][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.727718][ T10] ipv6_find_idev+0x102/0x170 [ 990.727718][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.727718][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.727718][ T10] netlink_rcv_skb+0x130/0x360 [ 990.727718][ T10] netlink_unicast+0x449/0x710 [ 990.727718][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.727718][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.727718][ T10] ___sys_sendmsg+0xee/0x170 [ 990.727718][ T10] __sys_sendmsg+0xcd/0x170 [ 990.727718][ T10] do_syscall_64+0xc6/0x1e0 [ 990.727718][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.727718][ T10] [ 990.729450][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 990.729736][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 990.729736][ T10] netdev_get_by_index+0x5e/0x80 [ 990.729736][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.729736][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.729736][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.729736][ T10] ipv6_add_addr+0x411/0x2000 [ 990.729736][ T10] inet6_addr_add+0x30e/0xa40 [ 990.729736][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.729736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.729736][ T10] netlink_rcv_skb+0x130/0x360 [ 990.729736][ T10] netlink_unicast+0x449/0x710 [ 990.729736][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.729736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.729736][ T10] ___sys_sendmsg+0xee/0x170 [ 990.729736][ T10] __sys_sendmsg+0xcd/0x170 [ 990.729736][ T10] do_syscall_64+0xc6/0x1e0 [ 990.729736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.729736][ T10] [ 990.731791][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 990.731791][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.731791][ T10] ipv6_find_idev+0x102/0x170 [ 990.731791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.731791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.731791][ T10] netlink_rcv_skb+0x130/0x360 [ 990.731791][ T10] netlink_unicast+0x449/0x710 [ 990.731791][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.731791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.731791][ T10] ___sys_sendmsg+0xee/0x170 [ 990.731791][ T10] __sys_sendmsg+0xcd/0x170 [ 990.731791][ T10] do_syscall_64+0xc6/0x1e0 [ 990.731791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.731791][ T10] [ 990.733371][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 990.733371][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.733371][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.733371][ T10] ipv6_find_idev+0x102/0x170 [ 990.733371][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.733371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.733371][ T10] netlink_rcv_skb+0x130/0x360 [ 990.733371][ T10] netlink_unicast+0x449/0x710 [ 990.733371][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.733371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.733371][ T10] ___sys_sendmsg+0xee/0x170 [ 990.733371][ T10] __sys_sendmsg+0xcd/0x170 [ 990.733371][ T10] do_syscall_64+0xc6/0x1e0 [ 990.733371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.733371][ T10] [ 990.735091][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 990.735363][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 990.735363][ T10] netdev_get_by_index+0x5e/0x80 [ 990.735363][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.735363][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.735363][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.735363][ T10] ipv6_add_addr+0x411/0x2000 [ 990.735363][ T10] inet6_addr_add+0x30e/0xa40 [ 990.735363][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.735363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.735363][ T10] netlink_rcv_skb+0x130/0x360 [ 990.735363][ T10] netlink_unicast+0x449/0x710 [ 990.735363][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.735363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.735363][ T10] ___sys_sendmsg+0xee/0x170 [ 990.735363][ T10] __sys_sendmsg+0xcd/0x170 [ 990.735363][ T10] do_syscall_64+0xc6/0x1e0 [ 990.735363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.735363][ T10] [ 990.737385][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 990.737385][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.737385][ T10] ipv6_find_idev+0x102/0x170 [ 990.737385][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.737385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.737385][ T10] netlink_rcv_skb+0x130/0x360 [ 990.737385][ T10] netlink_unicast+0x449/0x710 [ 990.737385][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.737385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.737385][ T10] ___sys_sendmsg+0xee/0x170 [ 990.737385][ T10] __sys_sendmsg+0xcd/0x170 [ 990.737385][ T10] do_syscall_64+0xc6/0x1e0 [ 990.737385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.737385][ T10] [ 990.738946][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 990.738946][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.738946][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.738946][ T10] ipv6_find_idev+0x102/0x170 [ 990.738946][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.738946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.738946][ T10] netlink_rcv_skb+0x130/0x360 [ 990.738946][ T10] netlink_unicast+0x449/0x710 [ 990.738946][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.738946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.738946][ T10] ___sys_sendmsg+0xee/0x170 [ 990.738946][ T10] __sys_sendmsg+0xcd/0x170 [ 990.738946][ T10] do_syscall_64+0xc6/0x1e0 [ 990.738946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.738946][ T10] [ 990.740667][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 990.740946][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 990.740946][ T10] netdev_get_by_index+0x5e/0x80 [ 990.740946][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.740946][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.740946][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.740946][ T10] ipv6_add_addr+0x411/0x2000 [ 990.740946][ T10] inet6_addr_add+0x30e/0xa40 [ 990.740946][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.740946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.740946][ T10] netlink_rcv_skb+0x130/0x360 [ 990.740946][ T10] netlink_unicast+0x449/0x710 [ 990.740946][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.740946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.740946][ T10] ___sys_sendmsg+0xee/0x170 [ 990.740946][ T10] __sys_sendmsg+0xcd/0x170 [ 990.740946][ T10] do_syscall_64+0xc6/0x1e0 [ 990.740946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.740946][ T10] [ 990.743200][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 990.743200][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.743200][ T10] ipv6_find_idev+0x102/0x170 [ 990.743200][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.743200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.743200][ T10] netlink_rcv_skb+0x130/0x360 [ 990.743200][ T10] netlink_unicast+0x449/0x710 [ 990.743200][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.743200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.743200][ T10] ___sys_sendmsg+0xee/0x170 [ 990.743200][ T10] __sys_sendmsg+0xcd/0x170 [ 990.743200][ T10] do_syscall_64+0xc6/0x1e0 [ 990.743200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.743200][ T10] [ 990.744987][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 990.744987][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.744987][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.744987][ T10] ipv6_find_idev+0x102/0x170 [ 990.744987][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.744987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.744987][ T10] netlink_rcv_skb+0x130/0x360 [ 990.744987][ T10] netlink_unicast+0x449/0x710 [ 990.744987][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.744987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.744987][ T10] ___sys_sendmsg+0xee/0x170 [ 990.744987][ T10] __sys_sendmsg+0xcd/0x170 [ 990.744987][ T10] do_syscall_64+0xc6/0x1e0 [ 990.744987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.744987][ T10] [ 990.746846][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 990.747112][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 990.747112][ T10] netdev_get_by_index+0x5e/0x80 [ 990.747112][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.747112][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.747112][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.747112][ T10] ipv6_add_addr+0x411/0x2000 [ 990.747112][ T10] inet6_addr_add+0x30e/0xa40 [ 990.747112][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.747112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.747112][ T10] netlink_rcv_skb+0x130/0x360 [ 990.747112][ T10] netlink_unicast+0x449/0x710 [ 990.747112][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.747112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.747112][ T10] ___sys_sendmsg+0xee/0x170 [ 990.747112][ T10] __sys_sendmsg+0xcd/0x170 [ 990.747112][ T10] do_syscall_64+0xc6/0x1e0 [ 990.747112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.747112][ T10] [ 990.749387][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 990.749387][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.749387][ T10] ipv6_find_idev+0x102/0x170 [ 990.749387][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.749387][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.749387][ T10] netlink_rcv_skb+0x130/0x360 [ 990.749387][ T10] netlink_unicast+0x449/0x710 [ 990.749387][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.749387][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.749387][ T10] ___sys_sendmsg+0xee/0x170 [ 990.749387][ T10] __sys_sendmsg+0xcd/0x170 [ 990.749387][ T10] do_syscall_64+0xc6/0x1e0 [ 990.749387][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.749387][ T10] [ 990.751129][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 990.751129][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.751129][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.751129][ T10] ipv6_find_idev+0x102/0x170 [ 990.751129][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.751129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.751129][ T10] netlink_rcv_skb+0x130/0x360 [ 990.751129][ T10] netlink_unicast+0x449/0x710 [ 990.751129][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.751129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.751129][ T10] ___sys_sendmsg+0xee/0x170 [ 990.751129][ T10] __sys_sendmsg+0xcd/0x170 [ 990.751129][ T10] do_syscall_64+0xc6/0x1e0 [ 990.751129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.751129][ T10] [ 990.753376][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 990.753706][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 990.753706][ T10] netdev_get_by_index+0x5e/0x80 [ 990.753706][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.753706][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.753706][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.753706][ T10] ipv6_add_addr+0x411/0x2000 [ 990.753706][ T10] inet6_addr_add+0x30e/0xa40 [ 990.753706][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.753706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.753706][ T10] netlink_rcv_skb+0x130/0x360 [ 990.753706][ T10] netlink_unicast+0x449/0x710 [ 990.753706][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.753706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.753706][ T10] ___sys_sendmsg+0xee/0x170 [ 990.753706][ T10] __sys_sendmsg+0xcd/0x170 [ 990.753706][ T10] do_syscall_64+0xc6/0x1e0 [ 990.753706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.753706][ T10] [ 990.755745][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 990.755745][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.755745][ T10] ipv6_find_idev+0x102/0x170 [ 990.755745][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.755745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.755745][ T10] netlink_rcv_skb+0x130/0x360 [ 990.755745][ T10] netlink_unicast+0x449/0x710 [ 990.755745][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.755745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.755745][ T10] ___sys_sendmsg+0xee/0x170 [ 990.755745][ T10] __sys_sendmsg+0xcd/0x170 [ 990.755745][ T10] do_syscall_64+0xc6/0x1e0 [ 990.755745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.755745][ T10] [ 990.757289][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 990.757289][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.757289][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.757289][ T10] ipv6_find_idev+0x102/0x170 [ 990.757289][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.757289][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.757289][ T10] netlink_rcv_skb+0x130/0x360 [ 990.757289][ T10] netlink_unicast+0x449/0x710 [ 990.757289][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.757289][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.757289][ T10] ___sys_sendmsg+0xee/0x170 [ 990.757289][ T10] __sys_sendmsg+0xcd/0x170 [ 990.757289][ T10] do_syscall_64+0xc6/0x1e0 [ 990.757289][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.757289][ T10] [ 990.759225][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 990.759540][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 990.759540][ T10] netdev_get_by_index+0x5e/0x80 [ 990.759540][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.759540][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.759540][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.759540][ T10] ipv6_add_addr+0x411/0x2000 [ 990.759540][ T10] inet6_addr_add+0x30e/0xa40 [ 990.759540][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.759540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.759540][ T10] netlink_rcv_skb+0x130/0x360 [ 990.759540][ T10] netlink_unicast+0x449/0x710 [ 990.759540][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.759540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.759540][ T10] ___sys_sendmsg+0xee/0x170 [ 990.759540][ T10] __sys_sendmsg+0xcd/0x170 [ 990.759540][ T10] do_syscall_64+0xc6/0x1e0 [ 990.759540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.759540][ T10] [ 990.761849][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 990.761849][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.761849][ T10] ipv6_find_idev+0x102/0x170 [ 990.761849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.761849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.761849][ T10] netlink_rcv_skb+0x130/0x360 [ 990.761849][ T10] netlink_unicast+0x449/0x710 [ 990.761849][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.761849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.761849][ T10] ___sys_sendmsg+0xee/0x170 [ 990.761849][ T10] __sys_sendmsg+0xcd/0x170 [ 990.761849][ T10] do_syscall_64+0xc6/0x1e0 [ 990.761849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.761849][ T10] [ 990.763544][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 990.763544][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.763544][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.763544][ T10] ipv6_find_idev+0x102/0x170 [ 990.763544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.763544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.763544][ T10] netlink_rcv_skb+0x130/0x360 [ 990.763544][ T10] netlink_unicast+0x449/0x710 [ 990.763544][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.763544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.763544][ T10] ___sys_sendmsg+0xee/0x170 [ 990.763544][ T10] __sys_sendmsg+0xcd/0x170 [ 990.763544][ T10] do_syscall_64+0xc6/0x1e0 [ 990.763544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.763544][ T10] [ 990.765509][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 990.765837][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 990.765837][ T10] netdev_get_by_index+0x5e/0x80 [ 990.765837][ T10] fib6_nh_init+0x3d8/0x15b0 [ 990.765837][ T10] ip6_route_info_create+0xf18/0x17d0 [ 990.765837][ T10] addrconf_f6i_alloc+0x244/0x410 [ 990.765837][ T10] ipv6_add_addr+0x411/0x2000 [ 990.765837][ T10] inet6_addr_add+0x30e/0xa40 [ 990.765837][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 990.765837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.765837][ T10] netlink_rcv_skb+0x130/0x360 [ 990.765837][ T10] netlink_unicast+0x449/0x710 [ 990.765837][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.765837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.765837][ T10] ___sys_sendmsg+0xee/0x170 [ 990.765837][ T10] __sys_sendmsg+0xcd/0x170 [ 990.765837][ T10] do_syscall_64+0xc6/0x1e0 [ 990.765837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.765837][ T10] [ 990.767858][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 990.767858][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 990.767858][ T10] ipv6_find_idev+0x102/0x170 [ 990.767858][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.767858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.767858][ T10] netlink_rcv_skb+0x130/0x360 [ 990.767858][ T10] netlink_unicast+0x449/0x710 [ 990.767858][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.767858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.767858][ T10] ___sys_sendmsg+0xee/0x170 [ 990.767858][ T10] __sys_sendmsg+0xcd/0x170 [ 990.767858][ T10] do_syscall_64+0xc6/0x1e0 [ 990.767858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.767858][ T10] [ 990.769409][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 990.769409][ T10] neigh_parms_alloc+0x1e5/0x510 [ 990.769409][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 990.769409][ T10] ipv6_find_idev+0x102/0x170 [ 990.769409][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 990.769409][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 990.769409][ T10] netlink_rcv_skb+0x130/0x360 [ 990.769409][ T10] netlink_unicast+0x449/0x710 [ 990.769409][ T10] netlink_sendmsg+0x723/0xbe0 [ 990.769409][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 990.769409][ T10] ___sys_sendmsg+0xee/0x170 [ 990.769409][ T10] __sys_sendmsg+0xcd/0x170 [ 990.769409][ T10] do_syscall_64+0xc6/0x1e0 [ 990.769409][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 990.769409][ T10] [ 1000.923669][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1000.924055][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1000.924055][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.924055][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.924055][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.924055][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.924055][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.924055][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.924055][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.924055][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.924055][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.924055][ T10] netlink_unicast+0x449/0x710 [ 1000.924055][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.924055][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.924055][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.924055][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.924055][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.924055][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.924055][ T10] [ 1000.926346][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1000.926346][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.926346][ T10] ipv6_find_idev+0x102/0x170 [ 1000.926346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.926346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.926346][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.926346][ T10] netlink_unicast+0x449/0x710 [ 1000.926346][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.926346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.926346][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.926346][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.926346][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.926346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.926346][ T10] [ 1000.928071][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1000.928071][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.928071][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.928071][ T10] ipv6_find_idev+0x102/0x170 [ 1000.928071][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.928071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.928071][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.928071][ T10] netlink_unicast+0x449/0x710 [ 1000.928071][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.928071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.928071][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.928071][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.928071][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.928071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.928071][ T10] [ 1000.929974][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1000.930275][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1000.930275][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.930275][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.930275][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.930275][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.930275][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.930275][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.930275][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.930275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.930275][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.930275][ T10] netlink_unicast+0x449/0x710 [ 1000.930275][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.930275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.930275][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.930275][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.930275][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.930275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.930275][ T10] [ 1000.932536][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1000.932536][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.932536][ T10] ipv6_find_idev+0x102/0x170 [ 1000.932536][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.932536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.932536][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.932536][ T10] netlink_unicast+0x449/0x710 [ 1000.932536][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.932536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.932536][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.932536][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.932536][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.932536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.932536][ T10] [ 1000.934249][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1000.934249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.934249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.934249][ T10] ipv6_find_idev+0x102/0x170 [ 1000.934249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.934249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.934249][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.934249][ T10] netlink_unicast+0x449/0x710 [ 1000.934249][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.934249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.934249][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.934249][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.934249][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.934249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.934249][ T10] [ 1000.936276][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1000.936598][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1000.936598][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.936598][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.936598][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.936598][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.936598][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.936598][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.936598][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.936598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.936598][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.936598][ T10] netlink_unicast+0x449/0x710 [ 1000.936598][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.936598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.936598][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.936598][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.936598][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.936598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.936598][ T10] [ 1000.938848][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1000.938848][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.938848][ T10] ipv6_find_idev+0x102/0x170 [ 1000.938848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.938848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.938848][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.938848][ T10] netlink_unicast+0x449/0x710 [ 1000.938848][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.938848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.938848][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.938848][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.938848][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.938848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.938848][ T10] [ 1000.940578][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1000.940578][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.940578][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.940578][ T10] ipv6_find_idev+0x102/0x170 [ 1000.940578][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.940578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.940578][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.940578][ T10] netlink_unicast+0x449/0x710 [ 1000.940578][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.940578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.940578][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.940578][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.940578][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.940578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.940578][ T10] [ 1000.942484][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1000.943399][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1000.943399][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.943399][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.943399][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.943399][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.943399][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.943399][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.943399][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.943399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.943399][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.943399][ T10] netlink_unicast+0x449/0x710 [ 1000.943399][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.943399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.943399][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.943399][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.943399][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.943399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.943399][ T10] [ 1000.945641][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1000.945641][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.945641][ T10] ipv6_find_idev+0x102/0x170 [ 1000.945641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.945641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.945641][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.945641][ T10] netlink_unicast+0x449/0x710 [ 1000.945641][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.945641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.945641][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.945641][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.945641][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.945641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.945641][ T10] [ 1000.947366][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1000.947366][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.947366][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.947366][ T10] ipv6_find_idev+0x102/0x170 [ 1000.947366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.947366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.947366][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.947366][ T10] netlink_unicast+0x449/0x710 [ 1000.947366][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.947366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.947366][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.947366][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.947366][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.947366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.947366][ T10] [ 1000.949298][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1000.949589][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1000.949589][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.949589][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.949589][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.949589][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.949589][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.949589][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.949589][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.949589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.949589][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.949589][ T10] netlink_unicast+0x449/0x710 [ 1000.949589][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.949589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.949589][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.949589][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.949589][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.949589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.949589][ T10] [ 1000.952419][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1000.952419][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.952419][ T10] ipv6_find_idev+0x102/0x170 [ 1000.952419][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.952419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.952419][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.952419][ T10] netlink_unicast+0x449/0x710 [ 1000.952419][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.952419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.952419][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.952419][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.952419][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.952419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.952419][ T10] [ 1000.954166][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1000.954166][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.954166][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.954166][ T10] ipv6_find_idev+0x102/0x170 [ 1000.954166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.954166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.954166][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.954166][ T10] netlink_unicast+0x449/0x710 [ 1000.954166][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.954166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.954166][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.954166][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.954166][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.954166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.954166][ T10] [ 1000.956118][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1000.956416][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1000.956416][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.956416][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.956416][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.956416][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.956416][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.956416][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.956416][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.956416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.956416][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.956416][ T10] netlink_unicast+0x449/0x710 [ 1000.956416][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.956416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.956416][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.956416][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.956416][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.956416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.956416][ T10] [ 1000.958849][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1000.958849][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.958849][ T10] ipv6_find_idev+0x102/0x170 [ 1000.958849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.958849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.958849][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.958849][ T10] netlink_unicast+0x449/0x710 [ 1000.958849][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.958849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.958849][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.958849][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.958849][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.958849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.958849][ T10] [ 1000.960645][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1000.960645][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.960645][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.960645][ T10] ipv6_find_idev+0x102/0x170 [ 1000.960645][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.960645][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.960645][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.960645][ T10] netlink_unicast+0x449/0x710 [ 1000.960645][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.960645][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.960645][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.960645][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.960645][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.960645][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.960645][ T10] [ 1000.962832][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1000.963136][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1000.963136][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.963136][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.963136][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.963136][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.963136][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.963136][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.963136][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.963136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.963136][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.963136][ T10] netlink_unicast+0x449/0x710 [ 1000.963136][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.963136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.963136][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.963136][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.963136][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.963136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.963136][ T10] [ 1000.965577][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1000.965577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.965577][ T10] ipv6_find_idev+0x102/0x170 [ 1000.965577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.965577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.965577][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.965577][ T10] netlink_unicast+0x449/0x710 [ 1000.965577][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.965577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.965577][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.965577][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.965577][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.965577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.965577][ T10] [ 1000.967399][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1000.967399][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.967399][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.967399][ T10] ipv6_find_idev+0x102/0x170 [ 1000.967399][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.967399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.967399][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.967399][ T10] netlink_unicast+0x449/0x710 [ 1000.967399][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.967399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.967399][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.967399][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.967399][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.967399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.967399][ T10] [ 1000.969447][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1000.969808][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1000.969808][ T10] netdev_get_by_index+0x5e/0x80 [ 1000.969808][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1000.969808][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1000.969808][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1000.969808][ T10] ipv6_add_addr+0x411/0x2000 [ 1000.969808][ T10] inet6_addr_add+0x30e/0xa40 [ 1000.969808][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1000.969808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.969808][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.969808][ T10] netlink_unicast+0x449/0x710 [ 1000.969808][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.969808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.969808][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.969808][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.969808][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.969808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.969808][ T10] [ 1000.972124][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1000.972124][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1000.972124][ T10] ipv6_find_idev+0x102/0x170 [ 1000.972124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.972124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.972124][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.972124][ T10] netlink_unicast+0x449/0x710 [ 1000.972124][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.972124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.972124][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.972124][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.972124][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.972124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.972124][ T10] [ 1000.974066][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1000.974066][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1000.974066][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1000.974066][ T10] ipv6_find_idev+0x102/0x170 [ 1000.974066][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1000.974066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1000.974066][ T10] netlink_rcv_skb+0x130/0x360 [ 1000.974066][ T10] netlink_unicast+0x449/0x710 [ 1000.974066][ T10] netlink_sendmsg+0x723/0xbe0 [ 1000.974066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1000.974066][ T10] ___sys_sendmsg+0xee/0x170 [ 1000.974066][ T10] __sys_sendmsg+0xcd/0x170 [ 1000.974066][ T10] do_syscall_64+0xc6/0x1e0 [ 1000.974066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1000.974066][ T10] [ 1011.083668][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1011.084031][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1011.084031][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.084031][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.084031][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.084031][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.084031][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.084031][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.084031][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.084031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.084031][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.084031][ T10] netlink_unicast+0x449/0x710 [ 1011.084031][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.084031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.084031][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.084031][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.084031][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.084031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.084031][ T10] [ 1011.086248][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1011.086248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.086248][ T10] ipv6_find_idev+0x102/0x170 [ 1011.086248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.086248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.086248][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.086248][ T10] netlink_unicast+0x449/0x710 [ 1011.086248][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.086248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.086248][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.086248][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.086248][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.086248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.086248][ T10] [ 1011.087947][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1011.087947][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.087947][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.087947][ T10] ipv6_find_idev+0x102/0x170 [ 1011.087947][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.087947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.087947][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.087947][ T10] netlink_unicast+0x449/0x710 [ 1011.087947][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.087947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.087947][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.087947][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.087947][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.087947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.087947][ T10] [ 1011.089932][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1011.090238][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1011.090238][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.090238][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.090238][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.090238][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.090238][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.090238][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.090238][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.090238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.090238][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.090238][ T10] netlink_unicast+0x449/0x710 [ 1011.090238][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.090238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.090238][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.090238][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.090238][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.090238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.090238][ T10] [ 1011.092546][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1011.092546][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.092546][ T10] ipv6_find_idev+0x102/0x170 [ 1011.092546][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.092546][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.092546][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.092546][ T10] netlink_unicast+0x449/0x710 [ 1011.092546][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.092546][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.092546][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.092546][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.092546][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.092546][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.092546][ T10] [ 1011.094339][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1011.094339][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.094339][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.094339][ T10] ipv6_find_idev+0x102/0x170 [ 1011.094339][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.094339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.094339][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.094339][ T10] netlink_unicast+0x449/0x710 [ 1011.094339][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.094339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.094339][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.094339][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.094339][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.094339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.094339][ T10] [ 1011.096346][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1011.096642][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1011.096642][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.096642][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.096642][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.096642][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.096642][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.096642][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.096642][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.096642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.096642][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.096642][ T10] netlink_unicast+0x449/0x710 [ 1011.096642][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.096642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.096642][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.096642][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.096642][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.096642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.096642][ T10] [ 1011.098917][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1011.098917][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.098917][ T10] ipv6_find_idev+0x102/0x170 [ 1011.098917][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.098917][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.098917][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.098917][ T10] netlink_unicast+0x449/0x710 [ 1011.098917][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.098917][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.098917][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.098917][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.098917][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.098917][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.098917][ T10] [ 1011.100670][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1011.100670][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.100670][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.100670][ T10] ipv6_find_idev+0x102/0x170 [ 1011.100670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.100670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.100670][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.100670][ T10] netlink_unicast+0x449/0x710 [ 1011.100670][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.100670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.100670][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.100670][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.100670][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.100670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.100670][ T10] [ 1011.102650][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1011.102943][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1011.102943][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.102943][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.102943][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.102943][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.102943][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.102943][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.102943][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.102943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.102943][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.102943][ T10] netlink_unicast+0x449/0x710 [ 1011.102943][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.102943][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.102943][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.102943][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.102943][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.102943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.102943][ T10] [ 1011.105188][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1011.105188][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.105188][ T10] ipv6_find_idev+0x102/0x170 [ 1011.105188][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.105188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.105188][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.105188][ T10] netlink_unicast+0x449/0x710 [ 1011.105188][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.105188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.105188][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.105188][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.105188][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.105188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.105188][ T10] [ 1011.107118][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1011.107118][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.107118][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.107118][ T10] ipv6_find_idev+0x102/0x170 [ 1011.107118][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.107118][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.107118][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.107118][ T10] netlink_unicast+0x449/0x710 [ 1011.107118][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.107118][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.107118][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.107118][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.107118][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.107118][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.107118][ T10] [ 1011.109482][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1011.109865][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1011.109865][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.109865][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.109865][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.109865][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.109865][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.109865][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.109865][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.109865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.109865][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.109865][ T10] netlink_unicast+0x449/0x710 [ 1011.109865][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.109865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.109865][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.109865][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.109865][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.109865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.109865][ T10] [ 1011.112162][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1011.112162][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.112162][ T10] ipv6_find_idev+0x102/0x170 [ 1011.112162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.112162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.112162][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.112162][ T10] netlink_unicast+0x449/0x710 [ 1011.112162][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.112162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.112162][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.112162][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.112162][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.112162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.112162][ T10] [ 1011.114028][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1011.114028][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.114028][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.114028][ T10] ipv6_find_idev+0x102/0x170 [ 1011.114028][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.114028][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.114028][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.114028][ T10] netlink_unicast+0x449/0x710 [ 1011.114028][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.114028][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.114028][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.114028][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.114028][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.114028][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.114028][ T10] [ 1011.116236][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1011.116586][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1011.116586][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.116586][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.116586][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.116586][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.116586][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.116586][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.116586][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.116586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.116586][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.116586][ T10] netlink_unicast+0x449/0x710 [ 1011.116586][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.116586][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.116586][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.116586][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.116586][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.116586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.116586][ T10] [ 1011.119057][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1011.119057][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.119057][ T10] ipv6_find_idev+0x102/0x170 [ 1011.119057][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.119057][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.119057][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.119057][ T10] netlink_unicast+0x449/0x710 [ 1011.119057][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.119057][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.119057][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.119057][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.119057][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.119057][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.119057][ T10] [ 1011.120843][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1011.120843][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.120843][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.120843][ T10] ipv6_find_idev+0x102/0x170 [ 1011.120843][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.120843][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.120843][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.120843][ T10] netlink_unicast+0x449/0x710 [ 1011.120843][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.120843][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.120843][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.120843][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.120843][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.120843][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.120843][ T10] [ 1011.123211][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1011.123516][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1011.123516][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.123516][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.123516][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.123516][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.123516][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.123516][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.123516][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.123516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.123516][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.123516][ T10] netlink_unicast+0x449/0x710 [ 1011.123516][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.123516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.123516][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.123516][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.123516][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.123516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.123516][ T10] [ 1011.126122][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1011.126122][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.126122][ T10] ipv6_find_idev+0x102/0x170 [ 1011.126122][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.126122][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.126122][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.126122][ T10] netlink_unicast+0x449/0x710 [ 1011.126122][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.126122][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.126122][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.126122][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.126122][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.126122][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.126122][ T10] [ 1011.128004][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1011.128004][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.128004][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.128004][ T10] ipv6_find_idev+0x102/0x170 [ 1011.128004][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.128004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.128004][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.128004][ T10] netlink_unicast+0x449/0x710 [ 1011.128004][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.128004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.128004][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.128004][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.128004][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.128004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.128004][ T10] [ 1011.130189][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1011.130498][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1011.130498][ T10] netdev_get_by_index+0x5e/0x80 [ 1011.130498][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1011.130498][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1011.130498][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1011.130498][ T10] ipv6_add_addr+0x411/0x2000 [ 1011.130498][ T10] inet6_addr_add+0x30e/0xa40 [ 1011.130498][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1011.130498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.130498][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.130498][ T10] netlink_unicast+0x449/0x710 [ 1011.130498][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.130498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.130498][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.130498][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.130498][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.130498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.130498][ T10] [ 1011.133132][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1011.133132][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1011.133132][ T10] ipv6_find_idev+0x102/0x170 [ 1011.133132][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.133132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.133132][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.133132][ T10] netlink_unicast+0x449/0x710 [ 1011.133132][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.133132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.133132][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.133132][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.133132][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.133132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.133132][ T10] [ 1011.134874][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1011.134874][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1011.134874][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1011.134874][ T10] ipv6_find_idev+0x102/0x170 [ 1011.134874][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1011.134874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1011.134874][ T10] netlink_rcv_skb+0x130/0x360 [ 1011.134874][ T10] netlink_unicast+0x449/0x710 [ 1011.134874][ T10] netlink_sendmsg+0x723/0xbe0 [ 1011.134874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1011.134874][ T10] ___sys_sendmsg+0xee/0x170 [ 1011.134874][ T10] __sys_sendmsg+0xcd/0x170 [ 1011.134874][ T10] do_syscall_64+0xc6/0x1e0 [ 1011.134874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1011.134874][ T10] [ 1021.275696][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1021.276072][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1021.276072][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.276072][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.276072][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.276072][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.276072][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.276072][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.276072][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.276072][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.276072][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.276072][ T10] netlink_unicast+0x449/0x710 [ 1021.276072][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.276072][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.276072][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.276072][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.276072][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.276072][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.276072][ T10] [ 1021.278392][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1021.278392][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.278392][ T10] ipv6_find_idev+0x102/0x170 [ 1021.278392][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.278392][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.278392][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.278392][ T10] netlink_unicast+0x449/0x710 [ 1021.278392][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.278392][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.278392][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.278392][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.278392][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.278392][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.278392][ T10] [ 1021.280163][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1021.280163][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.280163][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.280163][ T10] ipv6_find_idev+0x102/0x170 [ 1021.280163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.280163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.280163][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.280163][ T10] netlink_unicast+0x449/0x710 [ 1021.280163][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.280163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.280163][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.280163][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.280163][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.280163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.280163][ T10] [ 1021.282091][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1021.282396][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1021.282396][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.282396][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.282396][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.282396][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.282396][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.282396][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.282396][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.282396][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.282396][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.282396][ T10] netlink_unicast+0x449/0x710 [ 1021.282396][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.282396][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.282396][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.282396][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.282396][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.282396][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.282396][ T10] [ 1021.284656][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1021.284656][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.284656][ T10] ipv6_find_idev+0x102/0x170 [ 1021.284656][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.284656][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.284656][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.284656][ T10] netlink_unicast+0x449/0x710 [ 1021.284656][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.284656][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.284656][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.284656][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.284656][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.284656][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.284656][ T10] [ 1021.286404][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1021.286404][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.286404][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.286404][ T10] ipv6_find_idev+0x102/0x170 [ 1021.286404][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.286404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.286404][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.286404][ T10] netlink_unicast+0x449/0x710 [ 1021.286404][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.286404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.286404][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.286404][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.286404][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.286404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.286404][ T10] [ 1021.288361][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1021.288660][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1021.288660][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.288660][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.288660][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.288660][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.288660][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.288660][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.288660][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.288660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.288660][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.288660][ T10] netlink_unicast+0x449/0x710 [ 1021.288660][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.288660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.288660][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.288660][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.288660][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.288660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.288660][ T10] [ 1021.290935][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1021.290935][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.290935][ T10] ipv6_find_idev+0x102/0x170 [ 1021.290935][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.290935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.290935][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.290935][ T10] netlink_unicast+0x449/0x710 [ 1021.290935][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.290935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.290935][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.290935][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.290935][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.290935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.290935][ T10] [ 1021.292689][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1021.292689][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.292689][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.292689][ T10] ipv6_find_idev+0x102/0x170 [ 1021.292689][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.292689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.292689][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.292689][ T10] netlink_unicast+0x449/0x710 [ 1021.292689][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.292689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.292689][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.292689][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.292689][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.292689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.292689][ T10] [ 1021.294596][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1021.295349][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1021.295349][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.295349][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.295349][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.295349][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.295349][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.295349][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.295349][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.295349][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.295349][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.295349][ T10] netlink_unicast+0x449/0x710 [ 1021.295349][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.295349][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.295349][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.295349][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.295349][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.295349][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.295349][ T10] [ 1021.297633][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1021.297633][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.297633][ T10] ipv6_find_idev+0x102/0x170 [ 1021.297633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.297633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.297633][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.297633][ T10] netlink_unicast+0x449/0x710 [ 1021.297633][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.297633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.297633][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.297633][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.297633][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.297633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.297633][ T10] [ 1021.299403][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1021.299403][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.299403][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.299403][ T10] ipv6_find_idev+0x102/0x170 [ 1021.299403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.299403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.299403][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.299403][ T10] netlink_unicast+0x449/0x710 [ 1021.299403][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.299403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.299403][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.299403][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.299403][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.299403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.299403][ T10] [ 1021.301361][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1021.301716][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1021.301716][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.301716][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.301716][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.301716][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.301716][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.301716][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.301716][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.301716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.301716][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.301716][ T10] netlink_unicast+0x449/0x710 [ 1021.301716][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.301716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.301716][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.301716][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.301716][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.301716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.301716][ T10] [ 1021.304152][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1021.304152][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.304152][ T10] ipv6_find_idev+0x102/0x170 [ 1021.304152][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.304152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.304152][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.304152][ T10] netlink_unicast+0x449/0x710 [ 1021.304152][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.304152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.304152][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.304152][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.304152][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.304152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.304152][ T10] [ 1021.306061][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1021.306061][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.306061][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.306061][ T10] ipv6_find_idev+0x102/0x170 [ 1021.306061][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.306061][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.306061][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.306061][ T10] netlink_unicast+0x449/0x710 [ 1021.306061][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.306061][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.306061][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.306061][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.306061][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.306061][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.306061][ T10] [ 1021.308222][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1021.308567][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1021.308567][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.308567][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.308567][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.308567][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.308567][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.308567][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.308567][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.308567][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.308567][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.308567][ T10] netlink_unicast+0x449/0x710 [ 1021.308567][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.308567][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.308567][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.308567][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.308567][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.308567][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.308567][ T10] [ 1021.310988][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1021.310988][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.310988][ T10] ipv6_find_idev+0x102/0x170 [ 1021.310988][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.310988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.310988][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.310988][ T10] netlink_unicast+0x449/0x710 [ 1021.310988][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.310988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.310988][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.310988][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.310988][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.310988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.310988][ T10] [ 1021.312926][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1021.312926][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.312926][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.312926][ T10] ipv6_find_idev+0x102/0x170 [ 1021.312926][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.312926][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.312926][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.312926][ T10] netlink_unicast+0x449/0x710 [ 1021.312926][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.312926][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.312926][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.312926][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.312926][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.312926][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.312926][ T10] [ 1021.315068][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1021.315413][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1021.315413][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.315413][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.315413][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.315413][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.315413][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.315413][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.315413][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.315413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.315413][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.315413][ T10] netlink_unicast+0x449/0x710 [ 1021.315413][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.315413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.315413][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.315413][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.315413][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.315413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.315413][ T10] [ 1021.317888][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1021.317888][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.317888][ T10] ipv6_find_idev+0x102/0x170 [ 1021.317888][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.317888][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.317888][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.317888][ T10] netlink_unicast+0x449/0x710 [ 1021.317888][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.317888][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.317888][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.317888][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.317888][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.317888][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.317888][ T10] [ 1021.319847][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1021.319847][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.319847][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.319847][ T10] ipv6_find_idev+0x102/0x170 [ 1021.319847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.319847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.319847][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.319847][ T10] netlink_unicast+0x449/0x710 [ 1021.319847][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.319847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.319847][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.319847][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.319847][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.319847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.319847][ T10] [ 1021.321940][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1021.322367][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1021.322367][ T10] netdev_get_by_index+0x5e/0x80 [ 1021.322367][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1021.322367][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1021.322367][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1021.322367][ T10] ipv6_add_addr+0x411/0x2000 [ 1021.322367][ T10] inet6_addr_add+0x30e/0xa40 [ 1021.322367][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1021.322367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.322367][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.322367][ T10] netlink_unicast+0x449/0x710 [ 1021.322367][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.322367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.322367][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.322367][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.322367][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.322367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.322367][ T10] [ 1021.324638][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1021.324638][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1021.324638][ T10] ipv6_find_idev+0x102/0x170 [ 1021.324638][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.324638][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.324638][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.324638][ T10] netlink_unicast+0x449/0x710 [ 1021.324638][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.324638][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.324638][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.324638][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.324638][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.324638][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.324638][ T10] [ 1021.326415][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1021.326415][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1021.326415][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1021.326415][ T10] ipv6_find_idev+0x102/0x170 [ 1021.326415][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1021.326415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.326415][ T10] netlink_rcv_skb+0x130/0x360 [ 1021.326415][ T10] netlink_unicast+0x449/0x710 [ 1021.326415][ T10] netlink_sendmsg+0x723/0xbe0 [ 1021.326415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1021.326415][ T10] ___sys_sendmsg+0xee/0x170 [ 1021.326415][ T10] __sys_sendmsg+0xcd/0x170 [ 1021.326415][ T10] do_syscall_64+0xc6/0x1e0 [ 1021.326415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.326415][ T10] [ 1031.436943][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1031.437290][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1031.437290][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.437290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.437290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.437290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.437290][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.437290][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.437290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.437290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.437290][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.437290][ T10] netlink_unicast+0x449/0x710 [ 1031.437290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.437290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.437290][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.437290][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.437290][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.437290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.437290][ T10] [ 1031.439545][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1031.439545][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.439545][ T10] ipv6_find_idev+0x102/0x170 [ 1031.439545][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.439545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.439545][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.439545][ T10] netlink_unicast+0x449/0x710 [ 1031.439545][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.439545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.439545][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.439545][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.439545][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.439545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.439545][ T10] [ 1031.441351][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1031.441351][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.441351][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.441351][ T10] ipv6_find_idev+0x102/0x170 [ 1031.441351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.441351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.441351][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.441351][ T10] netlink_unicast+0x449/0x710 [ 1031.441351][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.441351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.441351][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.441351][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.441351][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.441351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.441351][ T10] [ 1031.443329][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1031.443627][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1031.443627][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.443627][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.443627][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.443627][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.443627][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.443627][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.443627][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.443627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.443627][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.443627][ T10] netlink_unicast+0x449/0x710 [ 1031.443627][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.443627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.443627][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.443627][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.443627][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.443627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.443627][ T10] [ 1031.445869][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1031.445869][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.445869][ T10] ipv6_find_idev+0x102/0x170 [ 1031.445869][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.445869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.445869][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.445869][ T10] netlink_unicast+0x449/0x710 [ 1031.445869][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.445869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.445869][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.445869][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.445869][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.445869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.445869][ T10] [ 1031.447634][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1031.447634][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.447634][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.447634][ T10] ipv6_find_idev+0x102/0x170 [ 1031.447634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.447634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.447634][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.447634][ T10] netlink_unicast+0x449/0x710 [ 1031.447634][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.447634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.447634][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.447634][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.447634][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.447634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.447634][ T10] [ 1031.449615][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1031.450081][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1031.450081][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.450081][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.450081][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.450081][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.450081][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.450081][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.450081][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.450081][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.450081][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.450081][ T10] netlink_unicast+0x449/0x710 [ 1031.450081][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.450081][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.450081][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.450081][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.450081][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.450081][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.450081][ T10] [ 1031.452553][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1031.452553][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.452553][ T10] ipv6_find_idev+0x102/0x170 [ 1031.452553][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.452553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.452553][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.452553][ T10] netlink_unicast+0x449/0x710 [ 1031.452553][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.452553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.452553][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.452553][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.452553][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.452553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.452553][ T10] [ 1031.454397][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1031.454397][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.454397][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.454397][ T10] ipv6_find_idev+0x102/0x170 [ 1031.454397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.454397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.454397][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.454397][ T10] netlink_unicast+0x449/0x710 [ 1031.454397][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.454397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.454397][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.454397][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.454397][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.454397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.454397][ T10] [ 1031.456555][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1031.457450][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1031.457450][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.457450][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.457450][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.457450][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.457450][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.457450][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.457450][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.457450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.457450][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.457450][ T10] netlink_unicast+0x449/0x710 [ 1031.457450][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.457450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.457450][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.457450][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.457450][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.457450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.457450][ T10] [ 1031.459646][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1031.459646][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.459646][ T10] ipv6_find_idev+0x102/0x170 [ 1031.459646][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.459646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.459646][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.459646][ T10] netlink_unicast+0x449/0x710 [ 1031.459646][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.459646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.459646][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.459646][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.459646][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.459646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.459646][ T10] [ 1031.461356][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1031.461356][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.461356][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.461356][ T10] ipv6_find_idev+0x102/0x170 [ 1031.461356][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.461356][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.461356][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.461356][ T10] netlink_unicast+0x449/0x710 [ 1031.461356][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.461356][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.461356][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.461356][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.461356][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.461356][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.461356][ T10] [ 1031.463426][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1031.463775][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1031.463775][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.463775][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.463775][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.463775][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.463775][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.463775][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.463775][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.463775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.463775][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.463775][ T10] netlink_unicast+0x449/0x710 [ 1031.463775][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.463775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.463775][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.463775][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.463775][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.463775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.463775][ T10] [ 1031.466011][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1031.466011][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.466011][ T10] ipv6_find_idev+0x102/0x170 [ 1031.466011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.466011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.466011][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.466011][ T10] netlink_unicast+0x449/0x710 [ 1031.466011][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.466011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.466011][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.466011][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.466011][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.466011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.466011][ T10] [ 1031.467751][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1031.467751][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.467751][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.467751][ T10] ipv6_find_idev+0x102/0x170 [ 1031.467751][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.467751][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.467751][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.467751][ T10] netlink_unicast+0x449/0x710 [ 1031.467751][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.467751][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.467751][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.467751][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.467751][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.467751][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.467751][ T10] [ 1031.469694][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1031.469988][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1031.469988][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.469988][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.469988][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.469988][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.469988][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.469988][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.469988][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.469988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.469988][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.469988][ T10] netlink_unicast+0x449/0x710 [ 1031.469988][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.469988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.469988][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.469988][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.469988][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.469988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.469988][ T10] [ 1031.472206][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1031.472206][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.472206][ T10] ipv6_find_idev+0x102/0x170 [ 1031.472206][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.472206][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.472206][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.472206][ T10] netlink_unicast+0x449/0x710 [ 1031.472206][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.472206][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.472206][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.472206][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.472206][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.472206][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.472206][ T10] [ 1031.473927][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1031.473927][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.473927][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.473927][ T10] ipv6_find_idev+0x102/0x170 [ 1031.473927][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.473927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.473927][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.473927][ T10] netlink_unicast+0x449/0x710 [ 1031.473927][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.473927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.473927][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.473927][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.473927][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.473927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.473927][ T10] [ 1031.475989][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1031.476290][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1031.476290][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.476290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.476290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.476290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.476290][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.476290][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.476290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.476290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.476290][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.476290][ T10] netlink_unicast+0x449/0x710 [ 1031.476290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.476290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.476290][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.476290][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.476290][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.476290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.476290][ T10] [ 1031.478818][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1031.478818][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.478818][ T10] ipv6_find_idev+0x102/0x170 [ 1031.478818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.478818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.478818][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.478818][ T10] netlink_unicast+0x449/0x710 [ 1031.478818][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.478818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.478818][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.478818][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.478818][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.478818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.478818][ T10] [ 1031.480873][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1031.480873][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.480873][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.480873][ T10] ipv6_find_idev+0x102/0x170 [ 1031.480873][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.480873][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.480873][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.480873][ T10] netlink_unicast+0x449/0x710 [ 1031.480873][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.480873][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.480873][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.480873][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.480873][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.480873][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.480873][ T10] [ 1031.482982][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1031.483274][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1031.483274][ T10] netdev_get_by_index+0x5e/0x80 [ 1031.483274][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1031.483274][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1031.483274][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1031.483274][ T10] ipv6_add_addr+0x411/0x2000 [ 1031.483274][ T10] inet6_addr_add+0x30e/0xa40 [ 1031.483274][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1031.483274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.483274][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.483274][ T10] netlink_unicast+0x449/0x710 [ 1031.483274][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.483274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.483274][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.483274][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.483274][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.483274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.483274][ T10] [ 1031.485577][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1031.485577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1031.485577][ T10] ipv6_find_idev+0x102/0x170 [ 1031.485577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.485577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.485577][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.485577][ T10] netlink_unicast+0x449/0x710 [ 1031.485577][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.485577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.485577][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.485577][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.485577][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.485577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.485577][ T10] [ 1031.487290][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1031.487290][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1031.487290][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1031.487290][ T10] ipv6_find_idev+0x102/0x170 [ 1031.487290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1031.487290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1031.487290][ T10] netlink_rcv_skb+0x130/0x360 [ 1031.487290][ T10] netlink_unicast+0x449/0x710 [ 1031.487290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1031.487290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1031.487290][ T10] ___sys_sendmsg+0xee/0x170 [ 1031.487290][ T10] __sys_sendmsg+0xcd/0x170 [ 1031.487290][ T10] do_syscall_64+0xc6/0x1e0 [ 1031.487290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1031.487290][ T10] [ 1041.627772][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1041.628128][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1041.628128][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.628128][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.628128][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.628128][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.628128][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.628128][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.628128][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.628128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.628128][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.628128][ T10] netlink_unicast+0x449/0x710 [ 1041.628128][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.628128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.628128][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.628128][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.628128][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.628128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.628128][ T10] [ 1041.630425][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1041.630425][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.630425][ T10] ipv6_find_idev+0x102/0x170 [ 1041.630425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.630425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.630425][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.630425][ T10] netlink_unicast+0x449/0x710 [ 1041.630425][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.630425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.630425][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.630425][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.630425][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.630425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.630425][ T10] [ 1041.632263][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1041.632263][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.632263][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.632263][ T10] ipv6_find_idev+0x102/0x170 [ 1041.632263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.632263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.632263][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.632263][ T10] netlink_unicast+0x449/0x710 [ 1041.632263][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.632263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.632263][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.632263][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.632263][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.632263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.632263][ T10] [ 1041.634402][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1041.634721][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1041.634721][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.634721][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.634721][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.634721][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.634721][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.634721][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.634721][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.634721][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.634721][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.634721][ T10] netlink_unicast+0x449/0x710 [ 1041.634721][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.634721][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.634721][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.634721][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.634721][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.634721][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.634721][ T10] [ 1041.637084][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1041.637084][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.637084][ T10] ipv6_find_idev+0x102/0x170 [ 1041.637084][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.637084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.637084][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.637084][ T10] netlink_unicast+0x449/0x710 [ 1041.637084][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.637084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.637084][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.637084][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.637084][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.637084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.637084][ T10] [ 1041.638852][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1041.638852][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.638852][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.638852][ T10] ipv6_find_idev+0x102/0x170 [ 1041.638852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.638852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.638852][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.638852][ T10] netlink_unicast+0x449/0x710 [ 1041.638852][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.638852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.638852][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.638852][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.638852][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.638852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.638852][ T10] [ 1041.640776][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1041.641073][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1041.641073][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.641073][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.641073][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.641073][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.641073][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.641073][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.641073][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.641073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.641073][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.641073][ T10] netlink_unicast+0x449/0x710 [ 1041.641073][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.641073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.641073][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.641073][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.641073][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.641073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.641073][ T10] [ 1041.643420][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1041.643420][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.643420][ T10] ipv6_find_idev+0x102/0x170 [ 1041.643420][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.643420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.643420][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.643420][ T10] netlink_unicast+0x449/0x710 [ 1041.643420][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.643420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.643420][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.643420][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.643420][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.643420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.643420][ T10] [ 1041.645255][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1041.645255][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.645255][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.645255][ T10] ipv6_find_idev+0x102/0x170 [ 1041.645255][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.645255][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.645255][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.645255][ T10] netlink_unicast+0x449/0x710 [ 1041.645255][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.645255][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.645255][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.645255][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.645255][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.645255][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.645255][ T10] [ 1041.647665][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1041.647985][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1041.647985][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.647985][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.647985][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.647985][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.647985][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.647985][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.647985][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.647985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.647985][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.647985][ T10] netlink_unicast+0x449/0x710 [ 1041.647985][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.647985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.647985][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.647985][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.647985][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.647985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.647985][ T10] [ 1041.650492][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1041.650492][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.650492][ T10] ipv6_find_idev+0x102/0x170 [ 1041.650492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.650492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.650492][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.650492][ T10] netlink_unicast+0x449/0x710 [ 1041.650492][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.650492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.650492][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.650492][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.650492][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.650492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.650492][ T10] [ 1041.652555][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1041.652555][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.652555][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.652555][ T10] ipv6_find_idev+0x102/0x170 [ 1041.652555][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.652555][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.652555][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.652555][ T10] netlink_unicast+0x449/0x710 [ 1041.652555][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.652555][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.652555][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.652555][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.652555][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.652555][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.652555][ T10] [ 1041.654864][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1041.655183][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1041.655183][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.655183][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.655183][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.655183][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.655183][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.655183][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.655183][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.655183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.655183][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.655183][ T10] netlink_unicast+0x449/0x710 [ 1041.655183][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.655183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.655183][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.655183][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.655183][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.655183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.655183][ T10] [ 1041.657749][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1041.657749][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.657749][ T10] ipv6_find_idev+0x102/0x170 [ 1041.657749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.657749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.657749][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.657749][ T10] netlink_unicast+0x449/0x710 [ 1041.657749][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.657749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.657749][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.657749][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.657749][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.657749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.657749][ T10] [ 1041.659816][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1041.659816][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.659816][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.659816][ T10] ipv6_find_idev+0x102/0x170 [ 1041.659816][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.659816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.659816][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.659816][ T10] netlink_unicast+0x449/0x710 [ 1041.659816][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.659816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.659816][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.659816][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.659816][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.659816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.659816][ T10] [ 1041.662370][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1041.663139][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1041.663139][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.663139][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.663139][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.663139][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.663139][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.663139][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.663139][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.663139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.663139][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.663139][ T10] netlink_unicast+0x449/0x710 [ 1041.663139][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.663139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.663139][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.663139][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.663139][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.663139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.663139][ T10] [ 1041.665547][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1041.665547][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.665547][ T10] ipv6_find_idev+0x102/0x170 [ 1041.665547][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.665547][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.665547][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.665547][ T10] netlink_unicast+0x449/0x710 [ 1041.665547][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.665547][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.665547][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.665547][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.665547][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.665547][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.665547][ T10] [ 1041.667407][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1041.667407][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.667407][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.667407][ T10] ipv6_find_idev+0x102/0x170 [ 1041.667407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.667407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.667407][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.667407][ T10] netlink_unicast+0x449/0x710 [ 1041.667407][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.667407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.667407][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.667407][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.667407][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.667407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.667407][ T10] [ 1041.669494][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1041.669862][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1041.669862][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.669862][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.669862][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.669862][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.669862][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.669862][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.669862][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.669862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.669862][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.669862][ T10] netlink_unicast+0x449/0x710 [ 1041.669862][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.669862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.669862][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.669862][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.669862][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.669862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.669862][ T10] [ 1041.672189][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1041.672189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.672189][ T10] ipv6_find_idev+0x102/0x170 [ 1041.672189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.672189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.672189][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.672189][ T10] netlink_unicast+0x449/0x710 [ 1041.672189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.672189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.672189][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.672189][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.672189][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.672189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.672189][ T10] [ 1041.674153][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1041.674153][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.674153][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.674153][ T10] ipv6_find_idev+0x102/0x170 [ 1041.674153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.674153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.674153][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.674153][ T10] netlink_unicast+0x449/0x710 [ 1041.674153][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.674153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.674153][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.674153][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.674153][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.674153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.674153][ T10] [ 1041.676402][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1041.676796][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1041.676796][ T10] netdev_get_by_index+0x5e/0x80 [ 1041.676796][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1041.676796][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1041.676796][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1041.676796][ T10] ipv6_add_addr+0x411/0x2000 [ 1041.676796][ T10] inet6_addr_add+0x30e/0xa40 [ 1041.676796][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1041.676796][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.676796][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.676796][ T10] netlink_unicast+0x449/0x710 [ 1041.676796][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.676796][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.676796][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.676796][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.676796][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.676796][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.676796][ T10] [ 1041.679209][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1041.679209][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1041.679209][ T10] ipv6_find_idev+0x102/0x170 [ 1041.679209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.679209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.679209][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.679209][ T10] netlink_unicast+0x449/0x710 [ 1041.679209][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.679209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.679209][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.679209][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.679209][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.679209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.679209][ T10] [ 1041.681058][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1041.681058][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1041.681058][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1041.681058][ T10] ipv6_find_idev+0x102/0x170 [ 1041.681058][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1041.681058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1041.681058][ T10] netlink_rcv_skb+0x130/0x360 [ 1041.681058][ T10] netlink_unicast+0x449/0x710 [ 1041.681058][ T10] netlink_sendmsg+0x723/0xbe0 [ 1041.681058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1041.681058][ T10] ___sys_sendmsg+0xee/0x170 [ 1041.681058][ T10] __sys_sendmsg+0xcd/0x170 [ 1041.681058][ T10] do_syscall_64+0xc6/0x1e0 [ 1041.681058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1041.681058][ T10] [ 1051.803749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1051.804111][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1051.804111][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.804111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.804111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.804111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.804111][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.804111][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.804111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.804111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.804111][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.804111][ T10] netlink_unicast+0x449/0x710 [ 1051.804111][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.804111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.804111][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.804111][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.804111][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.804111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.804111][ T10] [ 1051.806352][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1051.806352][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.806352][ T10] ipv6_find_idev+0x102/0x170 [ 1051.806352][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.806352][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.806352][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.806352][ T10] netlink_unicast+0x449/0x710 [ 1051.806352][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.806352][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.806352][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.806352][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.806352][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.806352][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.806352][ T10] [ 1051.808051][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1051.808051][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.808051][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.808051][ T10] ipv6_find_idev+0x102/0x170 [ 1051.808051][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.808051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.808051][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.808051][ T10] netlink_unicast+0x449/0x710 [ 1051.808051][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.808051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.808051][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.808051][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.808051][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.808051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.808051][ T10] [ 1051.809938][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1051.810225][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1051.810225][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.810225][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.810225][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.810225][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.810225][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.810225][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.810225][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.810225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.810225][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.810225][ T10] netlink_unicast+0x449/0x710 [ 1051.810225][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.810225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.810225][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.810225][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.810225][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.810225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.810225][ T10] [ 1051.812457][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1051.812457][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.812457][ T10] ipv6_find_idev+0x102/0x170 [ 1051.812457][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.812457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.812457][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.812457][ T10] netlink_unicast+0x449/0x710 [ 1051.812457][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.812457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.812457][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.812457][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.812457][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.812457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.812457][ T10] [ 1051.814121][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1051.814121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.814121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.814121][ T10] ipv6_find_idev+0x102/0x170 [ 1051.814121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.814121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.814121][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.814121][ T10] netlink_unicast+0x449/0x710 [ 1051.814121][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.814121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.814121][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.814121][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.814121][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.814121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.814121][ T10] [ 1051.815936][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1051.816222][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1051.816222][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.816222][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.816222][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.816222][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.816222][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.816222][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.816222][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.816222][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.816222][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.816222][ T10] netlink_unicast+0x449/0x710 [ 1051.816222][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.816222][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.816222][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.816222][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.816222][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.816222][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.816222][ T10] [ 1051.818372][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1051.818372][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.818372][ T10] ipv6_find_idev+0x102/0x170 [ 1051.818372][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.818372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.818372][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.818372][ T10] netlink_unicast+0x449/0x710 [ 1051.818372][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.818372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.818372][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.818372][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.818372][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.818372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.818372][ T10] [ 1051.820075][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1051.820075][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.820075][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.820075][ T10] ipv6_find_idev+0x102/0x170 [ 1051.820075][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.820075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.820075][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.820075][ T10] netlink_unicast+0x449/0x710 [ 1051.820075][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.820075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.820075][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.820075][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.820075][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.820075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.820075][ T10] [ 1051.821950][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1051.822245][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1051.822245][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.822245][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.822245][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.822245][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.822245][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.822245][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.822245][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.822245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.822245][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.822245][ T10] netlink_unicast+0x449/0x710 [ 1051.822245][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.822245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.822245][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.822245][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.822245][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.822245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.822245][ T10] [ 1051.824581][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1051.824581][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.824581][ T10] ipv6_find_idev+0x102/0x170 [ 1051.824581][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.824581][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.824581][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.824581][ T10] netlink_unicast+0x449/0x710 [ 1051.824581][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.824581][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.824581][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.824581][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.824581][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.824581][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.824581][ T10] [ 1051.826497][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1051.826497][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.826497][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.826497][ T10] ipv6_find_idev+0x102/0x170 [ 1051.826497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.826497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.826497][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.826497][ T10] netlink_unicast+0x449/0x710 [ 1051.826497][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.826497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.826497][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.826497][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.826497][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.826497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.826497][ T10] [ 1051.828607][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1051.829426][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1051.829426][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.829426][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.829426][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.829426][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.829426][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.829426][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.829426][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.829426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.829426][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.829426][ T10] netlink_unicast+0x449/0x710 [ 1051.829426][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.829426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.829426][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.829426][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.829426][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.829426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.829426][ T10] [ 1051.831606][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1051.831606][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.831606][ T10] ipv6_find_idev+0x102/0x170 [ 1051.831606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.831606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.831606][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.831606][ T10] netlink_unicast+0x449/0x710 [ 1051.831606][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.831606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.831606][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.831606][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.831606][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.831606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.831606][ T10] [ 1051.833308][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1051.833308][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.833308][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.833308][ T10] ipv6_find_idev+0x102/0x170 [ 1051.833308][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.833308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.833308][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.833308][ T10] netlink_unicast+0x449/0x710 [ 1051.833308][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.833308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.833308][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.833308][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.833308][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.833308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.833308][ T10] [ 1051.835423][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1051.835766][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1051.835766][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.835766][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.835766][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.835766][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.835766][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.835766][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.835766][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.835766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.835766][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.835766][ T10] netlink_unicast+0x449/0x710 [ 1051.835766][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.835766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.835766][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.835766][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.835766][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.835766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.835766][ T10] [ 1051.837958][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1051.837958][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.837958][ T10] ipv6_find_idev+0x102/0x170 [ 1051.837958][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.837958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.837958][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.837958][ T10] netlink_unicast+0x449/0x710 [ 1051.837958][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.837958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.837958][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.837958][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.837958][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.837958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.837958][ T10] [ 1051.839672][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1051.839672][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.839672][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.839672][ T10] ipv6_find_idev+0x102/0x170 [ 1051.839672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.839672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.839672][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.839672][ T10] netlink_unicast+0x449/0x710 [ 1051.839672][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.839672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.839672][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.839672][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.839672][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.839672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.839672][ T10] [ 1051.841693][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1051.841971][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1051.841971][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.841971][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.841971][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.841971][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.841971][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.841971][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.841971][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.841971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.841971][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.841971][ T10] netlink_unicast+0x449/0x710 [ 1051.841971][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.841971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.841971][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.841971][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.841971][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.841971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.841971][ T10] [ 1051.844306][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1051.844306][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.844306][ T10] ipv6_find_idev+0x102/0x170 [ 1051.844306][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.844306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.844306][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.844306][ T10] netlink_unicast+0x449/0x710 [ 1051.844306][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.844306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.844306][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.844306][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.844306][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.844306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.844306][ T10] [ 1051.845958][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1051.845958][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.845958][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.845958][ T10] ipv6_find_idev+0x102/0x170 [ 1051.845958][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.845958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.845958][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.845958][ T10] netlink_unicast+0x449/0x710 [ 1051.845958][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.845958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.845958][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.845958][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.845958][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.845958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.845958][ T10] [ 1051.847837][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1051.848122][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1051.848122][ T10] netdev_get_by_index+0x5e/0x80 [ 1051.848122][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1051.848122][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1051.848122][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1051.848122][ T10] ipv6_add_addr+0x411/0x2000 [ 1051.848122][ T10] inet6_addr_add+0x30e/0xa40 [ 1051.848122][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1051.848122][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.848122][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.848122][ T10] netlink_unicast+0x449/0x710 [ 1051.848122][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.848122][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.848122][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.848122][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.848122][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.848122][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.848122][ T10] [ 1051.850427][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1051.850427][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1051.850427][ T10] ipv6_find_idev+0x102/0x170 [ 1051.850427][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.850427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.850427][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.850427][ T10] netlink_unicast+0x449/0x710 [ 1051.850427][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.850427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.850427][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.850427][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.850427][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.850427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.850427][ T10] [ 1051.852321][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1051.852321][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1051.852321][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1051.852321][ T10] ipv6_find_idev+0x102/0x170 [ 1051.852321][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1051.852321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1051.852321][ T10] netlink_rcv_skb+0x130/0x360 [ 1051.852321][ T10] netlink_unicast+0x449/0x710 [ 1051.852321][ T10] netlink_sendmsg+0x723/0xbe0 [ 1051.852321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1051.852321][ T10] ___sys_sendmsg+0xee/0x170 [ 1051.852321][ T10] __sys_sendmsg+0xcd/0x170 [ 1051.852321][ T10] do_syscall_64+0xc6/0x1e0 [ 1051.852321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1051.852321][ T10] [ 1061.971824][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1061.972268][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1061.972268][ T10] netdev_get_by_index+0x5e/0x80 [ 1061.972268][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1061.972268][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1061.972268][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1061.972268][ T10] ipv6_add_addr+0x411/0x2000 [ 1061.972268][ T10] inet6_addr_add+0x30e/0xa40 [ 1061.972268][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1061.972268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.972268][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.972268][ T10] netlink_unicast+0x449/0x710 [ 1061.972268][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.972268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.972268][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.972268][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.972268][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.972268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.972268][ T10] [ 1061.974526][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1061.974526][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1061.974526][ T10] ipv6_find_idev+0x102/0x170 [ 1061.974526][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.974526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.974526][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.974526][ T10] netlink_unicast+0x449/0x710 [ 1061.974526][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.974526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.974526][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.974526][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.974526][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.974526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.974526][ T10] [ 1061.976241][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1061.976241][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1061.976241][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1061.976241][ T10] ipv6_find_idev+0x102/0x170 [ 1061.976241][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.976241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.976241][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.976241][ T10] netlink_unicast+0x449/0x710 [ 1061.976241][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.976241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.976241][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.976241][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.976241][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.976241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.976241][ T10] [ 1061.978141][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1061.978433][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1061.978433][ T10] netdev_get_by_index+0x5e/0x80 [ 1061.978433][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1061.978433][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1061.978433][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1061.978433][ T10] ipv6_add_addr+0x411/0x2000 [ 1061.978433][ T10] inet6_addr_add+0x30e/0xa40 [ 1061.978433][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1061.978433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.978433][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.978433][ T10] netlink_unicast+0x449/0x710 [ 1061.978433][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.978433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.978433][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.978433][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.978433][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.978433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.978433][ T10] [ 1061.980656][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1061.980656][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1061.980656][ T10] ipv6_find_idev+0x102/0x170 [ 1061.980656][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.980656][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.980656][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.980656][ T10] netlink_unicast+0x449/0x710 [ 1061.980656][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.980656][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.980656][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.980656][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.980656][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.980656][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.980656][ T10] [ 1061.982372][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1061.982372][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1061.982372][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1061.982372][ T10] ipv6_find_idev+0x102/0x170 [ 1061.982372][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.982372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.982372][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.982372][ T10] netlink_unicast+0x449/0x710 [ 1061.982372][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.982372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.982372][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.982372][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.982372][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.982372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.982372][ T10] [ 1061.984241][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1061.984532][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1061.984532][ T10] netdev_get_by_index+0x5e/0x80 [ 1061.984532][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1061.984532][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1061.984532][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1061.984532][ T10] ipv6_add_addr+0x411/0x2000 [ 1061.984532][ T10] inet6_addr_add+0x30e/0xa40 [ 1061.984532][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1061.984532][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.984532][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.984532][ T10] netlink_unicast+0x449/0x710 [ 1061.984532][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.984532][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.984532][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.984532][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.984532][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.984532][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.984532][ T10] [ 1061.986740][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1061.986740][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1061.986740][ T10] ipv6_find_idev+0x102/0x170 [ 1061.986740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.986740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.986740][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.986740][ T10] netlink_unicast+0x449/0x710 [ 1061.986740][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.986740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.986740][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.986740][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.986740][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.986740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.986740][ T10] [ 1061.988442][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1061.988442][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1061.988442][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1061.988442][ T10] ipv6_find_idev+0x102/0x170 [ 1061.988442][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.988442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.988442][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.988442][ T10] netlink_unicast+0x449/0x710 [ 1061.988442][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.988442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.988442][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.988442][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.988442][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.988442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.988442][ T10] [ 1061.990290][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1061.990578][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1061.990578][ T10] netdev_get_by_index+0x5e/0x80 [ 1061.990578][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1061.990578][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1061.990578][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1061.990578][ T10] ipv6_add_addr+0x411/0x2000 [ 1061.990578][ T10] inet6_addr_add+0x30e/0xa40 [ 1061.990578][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1061.990578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.990578][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.990578][ T10] netlink_unicast+0x449/0x710 [ 1061.990578][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.990578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.990578][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.990578][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.990578][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.990578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.990578][ T10] [ 1061.992787][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1061.992787][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1061.992787][ T10] ipv6_find_idev+0x102/0x170 [ 1061.992787][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.992787][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.992787][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.992787][ T10] netlink_unicast+0x449/0x710 [ 1061.992787][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.992787][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.992787][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.992787][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.992787][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.992787][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.992787][ T10] [ 1061.994486][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1061.994486][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1061.994486][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1061.994486][ T10] ipv6_find_idev+0x102/0x170 [ 1061.994486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.994486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.994486][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.994486][ T10] netlink_unicast+0x449/0x710 [ 1061.994486][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.994486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.994486][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.994486][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.994486][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.994486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.994486][ T10] [ 1061.996748][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1061.997033][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1061.997033][ T10] netdev_get_by_index+0x5e/0x80 [ 1061.997033][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1061.997033][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1061.997033][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1061.997033][ T10] ipv6_add_addr+0x411/0x2000 [ 1061.997033][ T10] inet6_addr_add+0x30e/0xa40 [ 1061.997033][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1061.997033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.997033][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.997033][ T10] netlink_unicast+0x449/0x710 [ 1061.997033][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.997033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.997033][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.997033][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.997033][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.997033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.997033][ T10] [ 1061.999208][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1061.999208][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1061.999208][ T10] ipv6_find_idev+0x102/0x170 [ 1061.999208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1061.999208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1061.999208][ T10] netlink_rcv_skb+0x130/0x360 [ 1061.999208][ T10] netlink_unicast+0x449/0x710 [ 1061.999208][ T10] netlink_sendmsg+0x723/0xbe0 [ 1061.999208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1061.999208][ T10] ___sys_sendmsg+0xee/0x170 [ 1061.999208][ T10] __sys_sendmsg+0xcd/0x170 [ 1061.999208][ T10] do_syscall_64+0xc6/0x1e0 [ 1061.999208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1061.999208][ T10] [ 1062.000895][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1062.000895][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1062.000895][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1062.000895][ T10] ipv6_find_idev+0x102/0x170 [ 1062.000895][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1062.000895][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.000895][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.000895][ T10] netlink_unicast+0x449/0x710 [ 1062.000895][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.000895][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.000895][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.000895][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.000895][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.000895][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.000895][ T10] [ 1062.002945][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1062.003227][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1062.003227][ T10] netdev_get_by_index+0x5e/0x80 [ 1062.003227][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1062.003227][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1062.003227][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1062.003227][ T10] ipv6_add_addr+0x411/0x2000 [ 1062.003227][ T10] inet6_addr_add+0x30e/0xa40 [ 1062.003227][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1062.003227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.003227][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.003227][ T10] netlink_unicast+0x449/0x710 [ 1062.003227][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.003227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.003227][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.003227][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.003227][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.003227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.003227][ T10] [ 1062.005596][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1062.005596][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1062.005596][ T10] ipv6_find_idev+0x102/0x170 [ 1062.005596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1062.005596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.005596][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.005596][ T10] netlink_unicast+0x449/0x710 [ 1062.005596][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.005596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.005596][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.005596][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.005596][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.005596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.005596][ T10] [ 1062.007477][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1062.007477][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1062.007477][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1062.007477][ T10] ipv6_find_idev+0x102/0x170 [ 1062.007477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1062.007477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.007477][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.007477][ T10] netlink_unicast+0x449/0x710 [ 1062.007477][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.007477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.007477][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.007477][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.007477][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.007477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.007477][ T10] [ 1062.009547][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1062.009884][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1062.009884][ T10] netdev_get_by_index+0x5e/0x80 [ 1062.009884][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1062.009884][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1062.009884][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1062.009884][ T10] ipv6_add_addr+0x411/0x2000 [ 1062.009884][ T10] inet6_addr_add+0x30e/0xa40 [ 1062.009884][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1062.009884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.009884][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.009884][ T10] netlink_unicast+0x449/0x710 [ 1062.009884][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.009884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.009884][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.009884][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.009884][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.009884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.009884][ T10] [ 1062.012250][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1062.012250][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1062.012250][ T10] ipv6_find_idev+0x102/0x170 [ 1062.012250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1062.012250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.012250][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.012250][ T10] netlink_unicast+0x449/0x710 [ 1062.012250][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.012250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.012250][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.012250][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.012250][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.012250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.012250][ T10] [ 1062.014113][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1062.014113][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1062.014113][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1062.014113][ T10] ipv6_find_idev+0x102/0x170 [ 1062.014113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1062.014113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.014113][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.014113][ T10] netlink_unicast+0x449/0x710 [ 1062.014113][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.014113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.014113][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.014113][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.014113][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.014113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.014113][ T10] [ 1062.016239][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1062.016519][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1062.016519][ T10] netdev_get_by_index+0x5e/0x80 [ 1062.016519][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1062.016519][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1062.016519][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1062.016519][ T10] ipv6_add_addr+0x411/0x2000 [ 1062.016519][ T10] inet6_addr_add+0x30e/0xa40 [ 1062.016519][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1062.016519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.016519][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.016519][ T10] netlink_unicast+0x449/0x710 [ 1062.016519][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.016519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.016519][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.016519][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.016519][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.016519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.016519][ T10] [ 1062.018898][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1062.018898][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1062.018898][ T10] ipv6_find_idev+0x102/0x170 [ 1062.018898][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1062.018898][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.018898][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.018898][ T10] netlink_unicast+0x449/0x710 [ 1062.018898][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.018898][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.018898][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.018898][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.018898][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.018898][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.018898][ T10] [ 1062.020714][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1062.020714][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1062.020714][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1062.020714][ T10] ipv6_find_idev+0x102/0x170 [ 1062.020714][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1062.020714][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1062.020714][ T10] netlink_rcv_skb+0x130/0x360 [ 1062.020714][ T10] netlink_unicast+0x449/0x710 [ 1062.020714][ T10] netlink_sendmsg+0x723/0xbe0 [ 1062.020714][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1062.020714][ T10] ___sys_sendmsg+0xee/0x170 [ 1062.020714][ T10] __sys_sendmsg+0xcd/0x170 [ 1062.020714][ T10] do_syscall_64+0xc6/0x1e0 [ 1062.020714][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1062.020714][ T10] [ 1072.139760][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1072.140176][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1072.140176][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.140176][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.140176][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.140176][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.140176][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.140176][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.140176][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.140176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.140176][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.140176][ T10] netlink_unicast+0x449/0x710 [ 1072.140176][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.140176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.140176][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.140176][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.140176][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.140176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.140176][ T10] [ 1072.142434][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1072.142434][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.142434][ T10] ipv6_find_idev+0x102/0x170 [ 1072.142434][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.142434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.142434][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.142434][ T10] netlink_unicast+0x449/0x710 [ 1072.142434][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.142434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.142434][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.142434][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.142434][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.142434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.142434][ T10] [ 1072.144166][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1072.144166][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.144166][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.144166][ T10] ipv6_find_idev+0x102/0x170 [ 1072.144166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.144166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.144166][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.144166][ T10] netlink_unicast+0x449/0x710 [ 1072.144166][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.144166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.144166][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.144166][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.144166][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.144166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.144166][ T10] [ 1072.146062][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1072.146363][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1072.146363][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.146363][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.146363][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.146363][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.146363][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.146363][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.146363][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.146363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.146363][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.146363][ T10] netlink_unicast+0x449/0x710 [ 1072.146363][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.146363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.146363][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.146363][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.146363][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.146363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.146363][ T10] [ 1072.148585][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1072.148585][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.148585][ T10] ipv6_find_idev+0x102/0x170 [ 1072.148585][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.148585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.148585][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.148585][ T10] netlink_unicast+0x449/0x710 [ 1072.148585][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.148585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.148585][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.148585][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.148585][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.148585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.148585][ T10] [ 1072.150319][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1072.150319][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.150319][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.150319][ T10] ipv6_find_idev+0x102/0x170 [ 1072.150319][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.150319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.150319][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.150319][ T10] netlink_unicast+0x449/0x710 [ 1072.150319][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.150319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.150319][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.150319][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.150319][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.150319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.150319][ T10] [ 1072.152163][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1072.152452][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1072.152452][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.152452][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.152452][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.152452][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.152452][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.152452][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.152452][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.152452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.152452][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.152452][ T10] netlink_unicast+0x449/0x710 [ 1072.152452][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.152452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.152452][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.152452][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.152452][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.152452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.152452][ T10] [ 1072.154693][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1072.154693][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.154693][ T10] ipv6_find_idev+0x102/0x170 [ 1072.154693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.154693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.154693][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.154693][ T10] netlink_unicast+0x449/0x710 [ 1072.154693][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.154693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.154693][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.154693][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.154693][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.154693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.154693][ T10] [ 1072.156417][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1072.156417][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.156417][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.156417][ T10] ipv6_find_idev+0x102/0x170 [ 1072.156417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.156417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.156417][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.156417][ T10] netlink_unicast+0x449/0x710 [ 1072.156417][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.156417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.156417][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.156417][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.156417][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.156417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.156417][ T10] [ 1072.158297][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1072.158591][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1072.158591][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.158591][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.158591][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.158591][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.158591][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.158591][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.158591][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.158591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.158591][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.158591][ T10] netlink_unicast+0x449/0x710 [ 1072.158591][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.158591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.158591][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.158591][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.158591][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.158591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.158591][ T10] [ 1072.160799][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1072.160799][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.160799][ T10] ipv6_find_idev+0x102/0x170 [ 1072.160799][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.160799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.160799][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.160799][ T10] netlink_unicast+0x449/0x710 [ 1072.160799][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.160799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.160799][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.160799][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.160799][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.160799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.160799][ T10] [ 1072.162499][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1072.162499][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.162499][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.162499][ T10] ipv6_find_idev+0x102/0x170 [ 1072.162499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.162499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.162499][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.162499][ T10] netlink_unicast+0x449/0x710 [ 1072.162499][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.162499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.162499][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.162499][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.162499][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.162499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.162499][ T10] [ 1072.164759][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1072.165045][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1072.165045][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.165045][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.165045][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.165045][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.165045][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.165045][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.165045][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.165045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.165045][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.165045][ T10] netlink_unicast+0x449/0x710 [ 1072.165045][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.165045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.165045][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.165045][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.165045][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.165045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.165045][ T10] [ 1072.167290][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1072.167290][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.167290][ T10] ipv6_find_idev+0x102/0x170 [ 1072.167290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.167290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.167290][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.167290][ T10] netlink_unicast+0x449/0x710 [ 1072.167290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.167290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.167290][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.167290][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.167290][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.167290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.167290][ T10] [ 1072.168985][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1072.168985][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.168985][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.168985][ T10] ipv6_find_idev+0x102/0x170 [ 1072.168985][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.168985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.168985][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.168985][ T10] netlink_unicast+0x449/0x710 [ 1072.168985][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.168985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.168985][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.168985][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.168985][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.168985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.168985][ T10] [ 1072.170876][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1072.171172][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1072.171172][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.171172][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.171172][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.171172][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.171172][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.171172][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.171172][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.171172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.171172][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.171172][ T10] netlink_unicast+0x449/0x710 [ 1072.171172][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.171172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.171172][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.171172][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.171172][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.171172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.171172][ T10] [ 1072.173475][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1072.173475][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.173475][ T10] ipv6_find_idev+0x102/0x170 [ 1072.173475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.173475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.173475][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.173475][ T10] netlink_unicast+0x449/0x710 [ 1072.173475][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.173475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.173475][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.173475][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.173475][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.173475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.173475][ T10] [ 1072.175189][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1072.175189][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.175189][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.175189][ T10] ipv6_find_idev+0x102/0x170 [ 1072.175189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.175189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.175189][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.175189][ T10] netlink_unicast+0x449/0x710 [ 1072.175189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.175189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.175189][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.175189][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.175189][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.175189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.175189][ T10] [ 1072.177226][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1072.177511][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1072.177511][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.177511][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.177511][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.177511][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.177511][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.177511][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.177511][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.177511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.177511][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.177511][ T10] netlink_unicast+0x449/0x710 [ 1072.177511][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.177511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.177511][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.177511][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.177511][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.177511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.177511][ T10] [ 1072.180022][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1072.180022][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.180022][ T10] ipv6_find_idev+0x102/0x170 [ 1072.180022][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.180022][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.180022][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.180022][ T10] netlink_unicast+0x449/0x710 [ 1072.180022][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.180022][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.180022][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.180022][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.180022][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.180022][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.180022][ T10] [ 1072.181953][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1072.181953][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.181953][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.181953][ T10] ipv6_find_idev+0x102/0x170 [ 1072.181953][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.181953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.181953][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.181953][ T10] netlink_unicast+0x449/0x710 [ 1072.181953][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.181953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.181953][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.181953][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.181953][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.181953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.181953][ T10] [ 1072.184145][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1072.184451][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1072.184451][ T10] netdev_get_by_index+0x5e/0x80 [ 1072.184451][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1072.184451][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1072.184451][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1072.184451][ T10] ipv6_add_addr+0x411/0x2000 [ 1072.184451][ T10] inet6_addr_add+0x30e/0xa40 [ 1072.184451][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1072.184451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.184451][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.184451][ T10] netlink_unicast+0x449/0x710 [ 1072.184451][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.184451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.184451][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.184451][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.184451][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.184451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.184451][ T10] [ 1072.187025][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1072.187025][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1072.187025][ T10] ipv6_find_idev+0x102/0x170 [ 1072.187025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.187025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.187025][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.187025][ T10] netlink_unicast+0x449/0x710 [ 1072.187025][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.187025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.187025][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.187025][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.187025][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.187025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.187025][ T10] [ 1072.188875][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1072.188875][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1072.188875][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1072.188875][ T10] ipv6_find_idev+0x102/0x170 [ 1072.188875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1072.188875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1072.188875][ T10] netlink_rcv_skb+0x130/0x360 [ 1072.188875][ T10] netlink_unicast+0x449/0x710 [ 1072.188875][ T10] netlink_sendmsg+0x723/0xbe0 [ 1072.188875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1072.188875][ T10] ___sys_sendmsg+0xee/0x170 [ 1072.188875][ T10] __sys_sendmsg+0xcd/0x170 [ 1072.188875][ T10] do_syscall_64+0xc6/0x1e0 [ 1072.188875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1072.188875][ T10] [ 1082.259770][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1082.260271][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1082.260271][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.260271][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.260271][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.260271][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.260271][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.260271][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.260271][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.260271][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.260271][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.260271][ T10] netlink_unicast+0x449/0x710 [ 1082.260271][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.260271][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.260271][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.260271][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.260271][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.260271][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.260271][ T10] [ 1082.262573][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1082.262573][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.262573][ T10] ipv6_find_idev+0x102/0x170 [ 1082.262573][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.262573][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.262573][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.262573][ T10] netlink_unicast+0x449/0x710 [ 1082.262573][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.262573][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.262573][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.262573][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.262573][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.262573][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.262573][ T10] [ 1082.264286][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1082.264286][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.264286][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.264286][ T10] ipv6_find_idev+0x102/0x170 [ 1082.264286][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.264286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.264286][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.264286][ T10] netlink_unicast+0x449/0x710 [ 1082.264286][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.264286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.264286][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.264286][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.264286][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.264286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.264286][ T10] [ 1082.266185][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1082.266483][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1082.266483][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.266483][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.266483][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.266483][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.266483][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.266483][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.266483][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.266483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.266483][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.266483][ T10] netlink_unicast+0x449/0x710 [ 1082.266483][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.266483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.266483][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.266483][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.266483][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.266483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.266483][ T10] [ 1082.268704][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1082.268704][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.268704][ T10] ipv6_find_idev+0x102/0x170 [ 1082.268704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.268704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.268704][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.268704][ T10] netlink_unicast+0x449/0x710 [ 1082.268704][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.268704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.268704][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.268704][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.268704][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.268704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.268704][ T10] [ 1082.270424][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1082.270424][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.270424][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.270424][ T10] ipv6_find_idev+0x102/0x170 [ 1082.270424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.270424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.270424][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.270424][ T10] netlink_unicast+0x449/0x710 [ 1082.270424][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.270424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.270424][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.270424][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.270424][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.270424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.270424][ T10] [ 1082.272298][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1082.272595][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1082.272595][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.272595][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.272595][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.272595][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.272595][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.272595][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.272595][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.272595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.272595][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.272595][ T10] netlink_unicast+0x449/0x710 [ 1082.272595][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.272595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.272595][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.272595][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.272595][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.272595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.272595][ T10] [ 1082.274830][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1082.274830][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.274830][ T10] ipv6_find_idev+0x102/0x170 [ 1082.274830][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.274830][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.274830][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.274830][ T10] netlink_unicast+0x449/0x710 [ 1082.274830][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.274830][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.274830][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.274830][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.274830][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.274830][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.274830][ T10] [ 1082.276538][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1082.276538][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.276538][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.276538][ T10] ipv6_find_idev+0x102/0x170 [ 1082.276538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.276538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.276538][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.276538][ T10] netlink_unicast+0x449/0x710 [ 1082.276538][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.276538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.276538][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.276538][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.276538][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.276538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.276538][ T10] [ 1082.278430][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1082.279170][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1082.279170][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.279170][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.279170][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.279170][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.279170][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.279170][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.279170][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.279170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.279170][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.279170][ T10] netlink_unicast+0x449/0x710 [ 1082.279170][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.279170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.279170][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.279170][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.279170][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.279170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.279170][ T10] [ 1082.281408][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1082.281408][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.281408][ T10] ipv6_find_idev+0x102/0x170 [ 1082.281408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.281408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.281408][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.281408][ T10] netlink_unicast+0x449/0x710 [ 1082.281408][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.281408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.281408][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.281408][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.281408][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.281408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.281408][ T10] [ 1082.283124][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1082.283124][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.283124][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.283124][ T10] ipv6_find_idev+0x102/0x170 [ 1082.283124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.283124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.283124][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.283124][ T10] netlink_unicast+0x449/0x710 [ 1082.283124][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.283124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.283124][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.283124][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.283124][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.283124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.283124][ T10] [ 1082.285055][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1082.285348][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1082.285348][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.285348][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.285348][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.285348][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.285348][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.285348][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.285348][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.285348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.285348][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.285348][ T10] netlink_unicast+0x449/0x710 [ 1082.285348][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.285348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.285348][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.285348][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.285348][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.285348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.285348][ T10] [ 1082.287565][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1082.287565][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.287565][ T10] ipv6_find_idev+0x102/0x170 [ 1082.287565][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.287565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.287565][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.287565][ T10] netlink_unicast+0x449/0x710 [ 1082.287565][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.287565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.287565][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.287565][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.287565][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.287565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.287565][ T10] [ 1082.289270][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1082.289270][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.289270][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.289270][ T10] ipv6_find_idev+0x102/0x170 [ 1082.289270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.289270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.289270][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.289270][ T10] netlink_unicast+0x449/0x710 [ 1082.289270][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.289270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.289270][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.289270][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.289270][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.289270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.289270][ T10] [ 1082.291188][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1082.291478][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1082.291478][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.291478][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.291478][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.291478][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.291478][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.291478][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.291478][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.291478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.291478][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.291478][ T10] netlink_unicast+0x449/0x710 [ 1082.291478][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.291478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.291478][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.291478][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.291478][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.291478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.291478][ T10] [ 1082.293793][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1082.293793][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.293793][ T10] ipv6_find_idev+0x102/0x170 [ 1082.293793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.293793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.293793][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.293793][ T10] netlink_unicast+0x449/0x710 [ 1082.293793][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.293793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.293793][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.293793][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.293793][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.293793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.293793][ T10] [ 1082.295757][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1082.295757][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.295757][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.295757][ T10] ipv6_find_idev+0x102/0x170 [ 1082.295757][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.295757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.295757][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.295757][ T10] netlink_unicast+0x449/0x710 [ 1082.295757][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.295757][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.295757][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.295757][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.295757][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.295757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.295757][ T10] [ 1082.297859][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1082.298153][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1082.298153][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.298153][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.298153][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.298153][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.298153][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.298153][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.298153][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.298153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.298153][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.298153][ T10] netlink_unicast+0x449/0x710 [ 1082.298153][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.298153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.298153][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.298153][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.298153][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.298153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.298153][ T10] [ 1082.300586][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1082.300586][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.300586][ T10] ipv6_find_idev+0x102/0x170 [ 1082.300586][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.300586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.300586][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.300586][ T10] netlink_unicast+0x449/0x710 [ 1082.300586][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.300586][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.300586][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.300586][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.300586][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.300586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.300586][ T10] [ 1082.302475][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1082.302475][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.302475][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.302475][ T10] ipv6_find_idev+0x102/0x170 [ 1082.302475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.302475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.302475][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.302475][ T10] netlink_unicast+0x449/0x710 [ 1082.302475][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.302475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.302475][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.302475][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.302475][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.302475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.302475][ T10] [ 1082.304577][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1082.304936][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1082.304936][ T10] netdev_get_by_index+0x5e/0x80 [ 1082.304936][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1082.304936][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1082.304936][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1082.304936][ T10] ipv6_add_addr+0x411/0x2000 [ 1082.304936][ T10] inet6_addr_add+0x30e/0xa40 [ 1082.304936][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1082.304936][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.304936][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.304936][ T10] netlink_unicast+0x449/0x710 [ 1082.304936][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.304936][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.304936][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.304936][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.304936][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.304936][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.304936][ T10] [ 1082.307403][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1082.307403][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1082.307403][ T10] ipv6_find_idev+0x102/0x170 [ 1082.307403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.307403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.307403][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.307403][ T10] netlink_unicast+0x449/0x710 [ 1082.307403][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.307403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.307403][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.307403][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.307403][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.307403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.307403][ T10] [ 1082.309294][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1082.309294][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1082.309294][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1082.309294][ T10] ipv6_find_idev+0x102/0x170 [ 1082.309294][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1082.309294][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1082.309294][ T10] netlink_rcv_skb+0x130/0x360 [ 1082.309294][ T10] netlink_unicast+0x449/0x710 [ 1082.309294][ T10] netlink_sendmsg+0x723/0xbe0 [ 1082.309294][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1082.309294][ T10] ___sys_sendmsg+0xee/0x170 [ 1082.309294][ T10] __sys_sendmsg+0xcd/0x170 [ 1082.309294][ T10] do_syscall_64+0xc6/0x1e0 [ 1082.309294][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1082.309294][ T10] [ 1092.395736][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1092.396098][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1092.396098][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.396098][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.396098][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.396098][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.396098][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.396098][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.396098][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.396098][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.396098][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.396098][ T10] netlink_unicast+0x449/0x710 [ 1092.396098][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.396098][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.396098][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.396098][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.396098][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.396098][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.396098][ T10] [ 1092.398406][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1092.398406][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.398406][ T10] ipv6_find_idev+0x102/0x170 [ 1092.398406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.398406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.398406][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.398406][ T10] netlink_unicast+0x449/0x710 [ 1092.398406][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.398406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.398406][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.398406][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.398406][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.398406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.398406][ T10] [ 1092.400188][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1092.400188][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.400188][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.400188][ T10] ipv6_find_idev+0x102/0x170 [ 1092.400188][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.400188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.400188][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.400188][ T10] netlink_unicast+0x449/0x710 [ 1092.400188][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.400188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.400188][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.400188][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.400188][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.400188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.400188][ T10] [ 1092.402691][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1092.403004][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1092.403004][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.403004][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.403004][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.403004][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.403004][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.403004][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.403004][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.403004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.403004][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.403004][ T10] netlink_unicast+0x449/0x710 [ 1092.403004][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.403004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.403004][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.403004][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.403004][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.403004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.403004][ T10] [ 1092.405290][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1092.405290][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.405290][ T10] ipv6_find_idev+0x102/0x170 [ 1092.405290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.405290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.405290][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.405290][ T10] netlink_unicast+0x449/0x710 [ 1092.405290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.405290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.405290][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.405290][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.405290][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.405290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.405290][ T10] [ 1092.407211][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1092.407211][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.407211][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.407211][ T10] ipv6_find_idev+0x102/0x170 [ 1092.407211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.407211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.407211][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.407211][ T10] netlink_unicast+0x449/0x710 [ 1092.407211][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.407211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.407211][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.407211][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.407211][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.407211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.407211][ T10] [ 1092.409332][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1092.409629][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1092.409629][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.409629][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.409629][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.409629][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.409629][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.409629][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.409629][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.409629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.409629][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.409629][ T10] netlink_unicast+0x449/0x710 [ 1092.409629][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.409629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.409629][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.409629][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.409629][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.409629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.409629][ T10] [ 1092.412062][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1092.412062][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.412062][ T10] ipv6_find_idev+0x102/0x170 [ 1092.412062][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.412062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.412062][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.412062][ T10] netlink_unicast+0x449/0x710 [ 1092.412062][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.412062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.412062][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.412062][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.412062][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.412062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.412062][ T10] [ 1092.414047][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1092.414047][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.414047][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.414047][ T10] ipv6_find_idev+0x102/0x170 [ 1092.414047][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.414047][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.414047][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.414047][ T10] netlink_unicast+0x449/0x710 [ 1092.414047][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.414047][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.414047][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.414047][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.414047][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.414047][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.414047][ T10] [ 1092.416306][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1092.416611][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1092.416611][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.416611][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.416611][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.416611][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.416611][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.416611][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.416611][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.416611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.416611][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.416611][ T10] netlink_unicast+0x449/0x710 [ 1092.416611][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.416611][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.416611][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.416611][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.416611][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.416611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.416611][ T10] [ 1092.419278][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1092.419278][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.419278][ T10] ipv6_find_idev+0x102/0x170 [ 1092.419278][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.419278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.419278][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.419278][ T10] netlink_unicast+0x449/0x710 [ 1092.419278][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.419278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.419278][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.419278][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.419278][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.419278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.419278][ T10] [ 1092.421270][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1092.421270][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.421270][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.421270][ T10] ipv6_find_idev+0x102/0x170 [ 1092.421270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.421270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.421270][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.421270][ T10] netlink_unicast+0x449/0x710 [ 1092.421270][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.421270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.421270][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.421270][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.421270][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.421270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.421270][ T10] [ 1092.423486][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1092.423850][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1092.423850][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.423850][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.423850][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.423850][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.423850][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.423850][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.423850][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.423850][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.423850][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.423850][ T10] netlink_unicast+0x449/0x710 [ 1092.423850][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.423850][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.423850][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.423850][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.423850][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.423850][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.423850][ T10] [ 1092.426367][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1092.426367][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.426367][ T10] ipv6_find_idev+0x102/0x170 [ 1092.426367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.426367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.426367][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.426367][ T10] netlink_unicast+0x449/0x710 [ 1092.426367][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.426367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.426367][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.426367][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.426367][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.426367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.426367][ T10] [ 1092.428430][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1092.428430][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.428430][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.428430][ T10] ipv6_find_idev+0x102/0x170 [ 1092.428430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.428430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.428430][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.428430][ T10] netlink_unicast+0x449/0x710 [ 1092.428430][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.428430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.428430][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.428430][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.428430][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.428430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.428430][ T10] [ 1092.430578][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1092.430943][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1092.430943][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.430943][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.430943][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.430943][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.430943][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.430943][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.430943][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.430943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.430943][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.430943][ T10] netlink_unicast+0x449/0x710 [ 1092.430943][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.430943][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.430943][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.430943][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.430943][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.430943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.430943][ T10] [ 1092.433241][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1092.433241][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.433241][ T10] ipv6_find_idev+0x102/0x170 [ 1092.433241][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.433241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.433241][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.433241][ T10] netlink_unicast+0x449/0x710 [ 1092.433241][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.433241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.433241][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.433241][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.433241][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.433241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.433241][ T10] [ 1092.435069][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1092.435069][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.435069][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.435069][ T10] ipv6_find_idev+0x102/0x170 [ 1092.435069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.435069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.435069][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.435069][ T10] netlink_unicast+0x449/0x710 [ 1092.435069][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.435069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.435069][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.435069][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.435069][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.435069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.435069][ T10] [ 1092.437286][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1092.437592][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1092.437592][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.437592][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.437592][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.437592][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.437592][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.437592][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.437592][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.437592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.437592][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.437592][ T10] netlink_unicast+0x449/0x710 [ 1092.437592][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.437592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.437592][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.437592][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.437592][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.437592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.437592][ T10] [ 1092.439967][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1092.439967][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.439967][ T10] ipv6_find_idev+0x102/0x170 [ 1092.439967][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.439967][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.439967][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.439967][ T10] netlink_unicast+0x449/0x710 [ 1092.439967][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.439967][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.439967][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.439967][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.439967][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.439967][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.439967][ T10] [ 1092.441758][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1092.441758][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.441758][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.441758][ T10] ipv6_find_idev+0x102/0x170 [ 1092.441758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.441758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.441758][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.441758][ T10] netlink_unicast+0x449/0x710 [ 1092.441758][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.441758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.441758][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.441758][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.441758][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.441758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.441758][ T10] [ 1092.443884][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1092.444192][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1092.444192][ T10] netdev_get_by_index+0x5e/0x80 [ 1092.444192][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1092.444192][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1092.444192][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1092.444192][ T10] ipv6_add_addr+0x411/0x2000 [ 1092.444192][ T10] inet6_addr_add+0x30e/0xa40 [ 1092.444192][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1092.444192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.444192][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.444192][ T10] netlink_unicast+0x449/0x710 [ 1092.444192][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.444192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.444192][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.444192][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.444192][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.444192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.444192][ T10] [ 1092.446788][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1092.446788][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1092.446788][ T10] ipv6_find_idev+0x102/0x170 [ 1092.446788][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.446788][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.446788][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.446788][ T10] netlink_unicast+0x449/0x710 [ 1092.446788][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.446788][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.446788][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.446788][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.446788][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.446788][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.446788][ T10] [ 1092.448818][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1092.448818][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1092.448818][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1092.448818][ T10] ipv6_find_idev+0x102/0x170 [ 1092.448818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1092.448818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1092.448818][ T10] netlink_rcv_skb+0x130/0x360 [ 1092.448818][ T10] netlink_unicast+0x449/0x710 [ 1092.448818][ T10] netlink_sendmsg+0x723/0xbe0 [ 1092.448818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1092.448818][ T10] ___sys_sendmsg+0xee/0x170 [ 1092.448818][ T10] __sys_sendmsg+0xcd/0x170 [ 1092.448818][ T10] do_syscall_64+0xc6/0x1e0 [ 1092.448818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1092.448818][ T10] [ 1102.547773][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1102.548252][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1102.548252][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.548252][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.548252][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.548252][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.548252][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.548252][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.548252][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.548252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.548252][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.548252][ T10] netlink_unicast+0x449/0x710 [ 1102.548252][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.548252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.548252][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.548252][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.548252][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.548252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.548252][ T10] [ 1102.550501][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1102.550501][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.550501][ T10] ipv6_find_idev+0x102/0x170 [ 1102.550501][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.550501][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.550501][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.550501][ T10] netlink_unicast+0x449/0x710 [ 1102.550501][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.550501][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.550501][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.550501][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.550501][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.550501][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.550501][ T10] [ 1102.552199][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1102.552199][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.552199][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.552199][ T10] ipv6_find_idev+0x102/0x170 [ 1102.552199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.552199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.552199][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.552199][ T10] netlink_unicast+0x449/0x710 [ 1102.552199][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.552199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.552199][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.552199][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.552199][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.552199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.552199][ T10] [ 1102.554090][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1102.554394][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1102.554394][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.554394][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.554394][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.554394][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.554394][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.554394][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.554394][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.554394][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.554394][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.554394][ T10] netlink_unicast+0x449/0x710 [ 1102.554394][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.554394][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.554394][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.554394][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.554394][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.554394][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.554394][ T10] [ 1102.556605][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1102.556605][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.556605][ T10] ipv6_find_idev+0x102/0x170 [ 1102.556605][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.556605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.556605][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.556605][ T10] netlink_unicast+0x449/0x710 [ 1102.556605][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.556605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.556605][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.556605][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.556605][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.556605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.556605][ T10] [ 1102.558317][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1102.558317][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.558317][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.558317][ T10] ipv6_find_idev+0x102/0x170 [ 1102.558317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.558317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.558317][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.558317][ T10] netlink_unicast+0x449/0x710 [ 1102.558317][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.558317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.558317][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.558317][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.558317][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.558317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.558317][ T10] [ 1102.560187][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1102.560478][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1102.560478][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.560478][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.560478][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.560478][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.560478][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.560478][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.560478][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.560478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.560478][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.560478][ T10] netlink_unicast+0x449/0x710 [ 1102.560478][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.560478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.560478][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.560478][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.560478][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.560478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.560478][ T10] [ 1102.562661][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1102.562661][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.562661][ T10] ipv6_find_idev+0x102/0x170 [ 1102.562661][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.562661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.562661][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.562661][ T10] netlink_unicast+0x449/0x710 [ 1102.562661][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.562661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.562661][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.562661][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.562661][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.562661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.562661][ T10] [ 1102.564379][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1102.564379][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.564379][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.564379][ T10] ipv6_find_idev+0x102/0x170 [ 1102.564379][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.564379][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.564379][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.564379][ T10] netlink_unicast+0x449/0x710 [ 1102.564379][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.564379][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.564379][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.564379][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.564379][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.564379][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.564379][ T10] [ 1102.566237][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1102.566526][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1102.566526][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.566526][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.566526][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.566526][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.566526][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.566526][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.566526][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.566526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.566526][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.566526][ T10] netlink_unicast+0x449/0x710 [ 1102.566526][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.566526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.566526][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.566526][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.566526][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.566526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.566526][ T10] [ 1102.568710][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1102.568710][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.568710][ T10] ipv6_find_idev+0x102/0x170 [ 1102.568710][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.568710][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.568710][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.568710][ T10] netlink_unicast+0x449/0x710 [ 1102.568710][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.568710][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.568710][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.568710][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.568710][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.568710][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.568710][ T10] [ 1102.570393][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1102.570393][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.570393][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.570393][ T10] ipv6_find_idev+0x102/0x170 [ 1102.570393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.570393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.570393][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.570393][ T10] netlink_unicast+0x449/0x710 [ 1102.570393][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.570393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.570393][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.570393][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.570393][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.570393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.570393][ T10] [ 1102.572680][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1102.572968][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1102.572968][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.572968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.572968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.572968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.572968][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.572968][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.572968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.572968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.572968][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.572968][ T10] netlink_unicast+0x449/0x710 [ 1102.572968][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.572968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.572968][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.572968][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.572968][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.572968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.572968][ T10] [ 1102.575157][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1102.575157][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.575157][ T10] ipv6_find_idev+0x102/0x170 [ 1102.575157][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.575157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.575157][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.575157][ T10] netlink_unicast+0x449/0x710 [ 1102.575157][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.575157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.575157][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.575157][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.575157][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.575157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.575157][ T10] [ 1102.576848][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1102.576848][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.576848][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.576848][ T10] ipv6_find_idev+0x102/0x170 [ 1102.576848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.576848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.576848][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.576848][ T10] netlink_unicast+0x449/0x710 [ 1102.576848][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.576848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.576848][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.576848][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.576848][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.576848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.576848][ T10] [ 1102.578734][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1102.579025][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1102.579025][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.579025][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.579025][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.579025][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.579025][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.579025][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.579025][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.579025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.579025][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.579025][ T10] netlink_unicast+0x449/0x710 [ 1102.579025][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.579025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.579025][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.579025][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.579025][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.579025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.579025][ T10] [ 1102.581486][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1102.581486][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.581486][ T10] ipv6_find_idev+0x102/0x170 [ 1102.581486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.581486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.581486][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.581486][ T10] netlink_unicast+0x449/0x710 [ 1102.581486][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.581486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.581486][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.581486][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.581486][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.581486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.581486][ T10] [ 1102.583374][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1102.583374][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.583374][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.583374][ T10] ipv6_find_idev+0x102/0x170 [ 1102.583374][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.583374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.583374][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.583374][ T10] netlink_unicast+0x449/0x710 [ 1102.583374][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.583374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.583374][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.583374][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.583374][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.583374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.583374][ T10] [ 1102.585522][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1102.585866][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1102.585866][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.585866][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.585866][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.585866][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.585866][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.585866][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.585866][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.585866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.585866][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.585866][ T10] netlink_unicast+0x449/0x710 [ 1102.585866][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.585866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.585866][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.585866][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.585866][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.585866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.585866][ T10] [ 1102.588259][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1102.588259][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.588259][ T10] ipv6_find_idev+0x102/0x170 [ 1102.588259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.588259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.588259][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.588259][ T10] netlink_unicast+0x449/0x710 [ 1102.588259][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.588259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.588259][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.588259][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.588259][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.588259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.588259][ T10] [ 1102.590147][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1102.590147][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.590147][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.590147][ T10] ipv6_find_idev+0x102/0x170 [ 1102.590147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.590147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.590147][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.590147][ T10] netlink_unicast+0x449/0x710 [ 1102.590147][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.590147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.590147][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.590147][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.590147][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.590147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.590147][ T10] [ 1102.592297][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1102.592580][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1102.592580][ T10] netdev_get_by_index+0x5e/0x80 [ 1102.592580][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1102.592580][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1102.592580][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1102.592580][ T10] ipv6_add_addr+0x411/0x2000 [ 1102.592580][ T10] inet6_addr_add+0x30e/0xa40 [ 1102.592580][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1102.592580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.592580][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.592580][ T10] netlink_unicast+0x449/0x710 [ 1102.592580][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.592580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.592580][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.592580][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.592580][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.592580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.592580][ T10] [ 1102.594986][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1102.594986][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1102.594986][ T10] ipv6_find_idev+0x102/0x170 [ 1102.594986][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.594986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.594986][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.594986][ T10] netlink_unicast+0x449/0x710 [ 1102.594986][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.594986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.594986][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.594986][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.594986][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.594986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.594986][ T10] [ 1102.596919][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1102.596919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1102.596919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1102.596919][ T10] ipv6_find_idev+0x102/0x170 [ 1102.596919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1102.596919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1102.596919][ T10] netlink_rcv_skb+0x130/0x360 [ 1102.596919][ T10] netlink_unicast+0x449/0x710 [ 1102.596919][ T10] netlink_sendmsg+0x723/0xbe0 [ 1102.596919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1102.596919][ T10] ___sys_sendmsg+0xee/0x170 [ 1102.596919][ T10] __sys_sendmsg+0xcd/0x170 [ 1102.596919][ T10] do_syscall_64+0xc6/0x1e0 [ 1102.596919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1102.596919][ T10] [ 1112.683671][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1112.684101][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1112.684101][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.684101][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.684101][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.684101][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.684101][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.684101][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.684101][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.684101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.684101][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.684101][ T10] netlink_unicast+0x449/0x710 [ 1112.684101][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.684101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.684101][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.684101][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.684101][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.684101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.684101][ T10] [ 1112.686263][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1112.686263][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.686263][ T10] ipv6_find_idev+0x102/0x170 [ 1112.686263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.686263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.686263][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.686263][ T10] netlink_unicast+0x449/0x710 [ 1112.686263][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.686263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.686263][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.686263][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.686263][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.686263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.686263][ T10] [ 1112.687809][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1112.687809][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.687809][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.687809][ T10] ipv6_find_idev+0x102/0x170 [ 1112.687809][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.687809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.687809][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.687809][ T10] netlink_unicast+0x449/0x710 [ 1112.687809][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.687809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.687809][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.687809][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.687809][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.687809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.687809][ T10] [ 1112.689533][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1112.690166][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1112.690166][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.690166][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.690166][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.690166][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.690166][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.690166][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.690166][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.690166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.690166][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.690166][ T10] netlink_unicast+0x449/0x710 [ 1112.690166][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.690166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.690166][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.690166][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.690166][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.690166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.690166][ T10] [ 1112.692189][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1112.692189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.692189][ T10] ipv6_find_idev+0x102/0x170 [ 1112.692189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.692189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.692189][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.692189][ T10] netlink_unicast+0x449/0x710 [ 1112.692189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.692189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.692189][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.692189][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.692189][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.692189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.692189][ T10] [ 1112.693732][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1112.693732][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.693732][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.693732][ T10] ipv6_find_idev+0x102/0x170 [ 1112.693732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.693732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.693732][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.693732][ T10] netlink_unicast+0x449/0x710 [ 1112.693732][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.693732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.693732][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.693732][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.693732][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.693732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.693732][ T10] [ 1112.695424][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1112.696180][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1112.696180][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.696180][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.696180][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.696180][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.696180][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.696180][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.696180][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.696180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.696180][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.696180][ T10] netlink_unicast+0x449/0x710 [ 1112.696180][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.696180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.696180][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.696180][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.696180][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.696180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.696180][ T10] [ 1112.698197][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1112.698197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.698197][ T10] ipv6_find_idev+0x102/0x170 [ 1112.698197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.698197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.698197][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.698197][ T10] netlink_unicast+0x449/0x710 [ 1112.698197][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.698197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.698197][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.698197][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.698197][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.698197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.698197][ T10] [ 1112.699787][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1112.699787][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.699787][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.699787][ T10] ipv6_find_idev+0x102/0x170 [ 1112.699787][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.699787][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.699787][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.699787][ T10] netlink_unicast+0x449/0x710 [ 1112.699787][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.699787][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.699787][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.699787][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.699787][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.699787][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.699787][ T10] [ 1112.701539][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1112.701875][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1112.701875][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.701875][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.701875][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.701875][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.701875][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.701875][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.701875][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.701875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.701875][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.701875][ T10] netlink_unicast+0x449/0x710 [ 1112.701875][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.701875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.701875][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.701875][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.701875][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.701875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.701875][ T10] [ 1112.703928][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1112.703928][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.703928][ T10] ipv6_find_idev+0x102/0x170 [ 1112.703928][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.703928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.703928][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.703928][ T10] netlink_unicast+0x449/0x710 [ 1112.703928][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.703928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.703928][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.703928][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.703928][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.703928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.703928][ T10] [ 1112.705486][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1112.705486][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.705486][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.705486][ T10] ipv6_find_idev+0x102/0x170 [ 1112.705486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.705486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.705486][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.705486][ T10] netlink_unicast+0x449/0x710 [ 1112.705486][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.705486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.705486][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.705486][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.705486][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.705486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.705486][ T10] [ 1112.707237][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1112.707519][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1112.707519][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.707519][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.707519][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.707519][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.707519][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.707519][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.707519][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.707519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.707519][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.707519][ T10] netlink_unicast+0x449/0x710 [ 1112.707519][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.707519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.707519][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.707519][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.707519][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.707519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.707519][ T10] [ 1112.709531][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1112.709531][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.709531][ T10] ipv6_find_idev+0x102/0x170 [ 1112.709531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.709531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.709531][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.709531][ T10] netlink_unicast+0x449/0x710 [ 1112.709531][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.709531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.709531][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.709531][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.709531][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.709531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.709531][ T10] [ 1112.711073][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1112.711073][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.711073][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.711073][ T10] ipv6_find_idev+0x102/0x170 [ 1112.711073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.711073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.711073][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.711073][ T10] netlink_unicast+0x449/0x710 [ 1112.711073][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.711073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.711073][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.711073][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.711073][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.711073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.711073][ T10] [ 1112.712815][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1112.713086][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1112.713086][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.713086][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.713086][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.713086][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.713086][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.713086][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.713086][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.713086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.713086][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.713086][ T10] netlink_unicast+0x449/0x710 [ 1112.713086][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.713086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.713086][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.713086][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.713086][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.713086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.713086][ T10] [ 1112.715097][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1112.715097][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.715097][ T10] ipv6_find_idev+0x102/0x170 [ 1112.715097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.715097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.715097][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.715097][ T10] netlink_unicast+0x449/0x710 [ 1112.715097][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.715097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.715097][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.715097][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.715097][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.715097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.715097][ T10] [ 1112.716843][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1112.716843][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.716843][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.716843][ T10] ipv6_find_idev+0x102/0x170 [ 1112.716843][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.716843][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.716843][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.716843][ T10] netlink_unicast+0x449/0x710 [ 1112.716843][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.716843][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.716843][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.716843][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.716843][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.716843][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.716843][ T10] [ 1112.718864][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1112.719139][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1112.719139][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.719139][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.719139][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.719139][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.719139][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.719139][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.719139][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.719139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.719139][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.719139][ T10] netlink_unicast+0x449/0x710 [ 1112.719139][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.719139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.719139][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.719139][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.719139][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.719139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.719139][ T10] [ 1112.721215][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1112.721215][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.721215][ T10] ipv6_find_idev+0x102/0x170 [ 1112.721215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.721215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.721215][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.721215][ T10] netlink_unicast+0x449/0x710 [ 1112.721215][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.721215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.721215][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.721215][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.721215][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.721215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.721215][ T10] [ 1112.722890][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1112.722890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.722890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.722890][ T10] ipv6_find_idev+0x102/0x170 [ 1112.722890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.722890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.722890][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.722890][ T10] netlink_unicast+0x449/0x710 [ 1112.722890][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.722890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.722890][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.722890][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.722890][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.722890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.722890][ T10] [ 1112.724914][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1112.725254][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1112.725254][ T10] netdev_get_by_index+0x5e/0x80 [ 1112.725254][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1112.725254][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1112.725254][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1112.725254][ T10] ipv6_add_addr+0x411/0x2000 [ 1112.725254][ T10] inet6_addr_add+0x30e/0xa40 [ 1112.725254][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1112.725254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.725254][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.725254][ T10] netlink_unicast+0x449/0x710 [ 1112.725254][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.725254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.725254][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.725254][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.725254][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.725254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.725254][ T10] [ 1112.727407][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1112.727407][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1112.727407][ T10] ipv6_find_idev+0x102/0x170 [ 1112.727407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.727407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.727407][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.727407][ T10] netlink_unicast+0x449/0x710 [ 1112.727407][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.727407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.727407][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.727407][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.727407][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.727407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.727407][ T10] [ 1112.729141][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1112.729141][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1112.729141][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1112.729141][ T10] ipv6_find_idev+0x102/0x170 [ 1112.729141][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1112.729141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1112.729141][ T10] netlink_rcv_skb+0x130/0x360 [ 1112.729141][ T10] netlink_unicast+0x449/0x710 [ 1112.729141][ T10] netlink_sendmsg+0x723/0xbe0 [ 1112.729141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1112.729141][ T10] ___sys_sendmsg+0xee/0x170 [ 1112.729141][ T10] __sys_sendmsg+0xcd/0x170 [ 1112.729141][ T10] do_syscall_64+0xc6/0x1e0 [ 1112.729141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1112.729141][ T10] [ 1122.859678][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1122.860070][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1122.860070][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.860070][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.860070][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.860070][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.860070][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.860070][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.860070][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.860070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.860070][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.860070][ T10] netlink_unicast+0x449/0x710 [ 1122.860070][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.860070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.860070][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.860070][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.860070][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.860070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.860070][ T10] [ 1122.862172][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1122.862172][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.862172][ T10] ipv6_find_idev+0x102/0x170 [ 1122.862172][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.862172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.862172][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.862172][ T10] netlink_unicast+0x449/0x710 [ 1122.862172][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.862172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.862172][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.862172][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.862172][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.862172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.862172][ T10] [ 1122.863726][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1122.863726][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.863726][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.863726][ T10] ipv6_find_idev+0x102/0x170 [ 1122.863726][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.863726][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.863726][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.863726][ T10] netlink_unicast+0x449/0x710 [ 1122.863726][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.863726][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.863726][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.863726][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.863726][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.863726][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.863726][ T10] [ 1122.865469][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1122.865778][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1122.865778][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.865778][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.865778][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.865778][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.865778][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.865778][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.865778][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.865778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.865778][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.865778][ T10] netlink_unicast+0x449/0x710 [ 1122.865778][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.865778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.865778][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.865778][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.865778][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.865778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.865778][ T10] [ 1122.867780][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1122.867780][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.867780][ T10] ipv6_find_idev+0x102/0x170 [ 1122.867780][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.867780][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.867780][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.867780][ T10] netlink_unicast+0x449/0x710 [ 1122.867780][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.867780][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.867780][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.867780][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.867780][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.867780][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.867780][ T10] [ 1122.869330][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1122.869330][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.869330][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.869330][ T10] ipv6_find_idev+0x102/0x170 [ 1122.869330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.869330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.869330][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.869330][ T10] netlink_unicast+0x449/0x710 [ 1122.869330][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.869330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.869330][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.869330][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.869330][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.869330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.869330][ T10] [ 1122.871058][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1122.871336][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1122.871336][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.871336][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.871336][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.871336][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.871336][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.871336][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.871336][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.871336][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.871336][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.871336][ T10] netlink_unicast+0x449/0x710 [ 1122.871336][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.871336][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.871336][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.871336][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.871336][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.871336][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.871336][ T10] [ 1122.873339][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1122.873339][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.873339][ T10] ipv6_find_idev+0x102/0x170 [ 1122.873339][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.873339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.873339][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.873339][ T10] netlink_unicast+0x449/0x710 [ 1122.873339][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.873339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.873339][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.873339][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.873339][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.873339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.873339][ T10] [ 1122.874887][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1122.874887][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.874887][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.874887][ T10] ipv6_find_idev+0x102/0x170 [ 1122.874887][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.874887][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.874887][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.874887][ T10] netlink_unicast+0x449/0x710 [ 1122.874887][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.874887][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.874887][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.874887][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.874887][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.874887][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.874887][ T10] [ 1122.876599][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1122.877389][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1122.877389][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.877389][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.877389][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.877389][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.877389][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.877389][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.877389][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.877389][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.877389][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.877389][ T10] netlink_unicast+0x449/0x710 [ 1122.877389][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.877389][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.877389][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.877389][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.877389][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.877389][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.877389][ T10] [ 1122.879417][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1122.879417][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.879417][ T10] ipv6_find_idev+0x102/0x170 [ 1122.879417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.879417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.879417][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.879417][ T10] netlink_unicast+0x449/0x710 [ 1122.879417][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.879417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.879417][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.879417][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.879417][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.879417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.879417][ T10] [ 1122.880966][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1122.880966][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.880966][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.880966][ T10] ipv6_find_idev+0x102/0x170 [ 1122.880966][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.880966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.880966][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.880966][ T10] netlink_unicast+0x449/0x710 [ 1122.880966][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.880966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.880966][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.880966][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.880966][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.880966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.880966][ T10] [ 1122.882728][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1122.883000][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1122.883000][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.883000][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.883000][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.883000][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.883000][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.883000][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.883000][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.883000][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.883000][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.883000][ T10] netlink_unicast+0x449/0x710 [ 1122.883000][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.883000][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.883000][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.883000][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.883000][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.883000][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.883000][ T10] [ 1122.885035][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1122.885035][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.885035][ T10] ipv6_find_idev+0x102/0x170 [ 1122.885035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.885035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.885035][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.885035][ T10] netlink_unicast+0x449/0x710 [ 1122.885035][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.885035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.885035][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.885035][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.885035][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.885035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.885035][ T10] [ 1122.886620][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1122.886620][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.886620][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.886620][ T10] ipv6_find_idev+0x102/0x170 [ 1122.886620][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.886620][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.886620][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.886620][ T10] netlink_unicast+0x449/0x710 [ 1122.886620][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.886620][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.886620][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.886620][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.886620][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.886620][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.886620][ T10] [ 1122.888498][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1122.888838][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1122.888838][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.888838][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.888838][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.888838][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.888838][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.888838][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.888838][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.888838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.888838][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.888838][ T10] netlink_unicast+0x449/0x710 [ 1122.888838][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.888838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.888838][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.888838][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.888838][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.888838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.888838][ T10] [ 1122.891036][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1122.891036][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.891036][ T10] ipv6_find_idev+0x102/0x170 [ 1122.891036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.891036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.891036][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.891036][ T10] netlink_unicast+0x449/0x710 [ 1122.891036][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.891036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.891036][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.891036][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.891036][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.891036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.891036][ T10] [ 1122.892791][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1122.892791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.892791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.892791][ T10] ipv6_find_idev+0x102/0x170 [ 1122.892791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.892791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.892791][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.892791][ T10] netlink_unicast+0x449/0x710 [ 1122.892791][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.892791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.892791][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.892791][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.892791][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.892791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.892791][ T10] [ 1122.894707][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1122.894991][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1122.894991][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.894991][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.894991][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.894991][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.894991][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.894991][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.894991][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.894991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.894991][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.894991][ T10] netlink_unicast+0x449/0x710 [ 1122.894991][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.894991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.894991][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.894991][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.894991][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.894991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.894991][ T10] [ 1122.897220][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1122.897220][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.897220][ T10] ipv6_find_idev+0x102/0x170 [ 1122.897220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.897220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.897220][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.897220][ T10] netlink_unicast+0x449/0x710 [ 1122.897220][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.897220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.897220][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.897220][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.897220][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.897220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.897220][ T10] [ 1122.898980][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1122.898980][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.898980][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.898980][ T10] ipv6_find_idev+0x102/0x170 [ 1122.898980][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.898980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.898980][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.898980][ T10] netlink_unicast+0x449/0x710 [ 1122.898980][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.898980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.898980][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.898980][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.898980][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.898980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.898980][ T10] [ 1122.900991][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1122.901263][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1122.901263][ T10] netdev_get_by_index+0x5e/0x80 [ 1122.901263][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1122.901263][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1122.901263][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1122.901263][ T10] ipv6_add_addr+0x411/0x2000 [ 1122.901263][ T10] inet6_addr_add+0x30e/0xa40 [ 1122.901263][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1122.901263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.901263][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.901263][ T10] netlink_unicast+0x449/0x710 [ 1122.901263][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.901263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.901263][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.901263][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.901263][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.901263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.901263][ T10] [ 1122.903519][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1122.903519][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1122.903519][ T10] ipv6_find_idev+0x102/0x170 [ 1122.903519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.903519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.903519][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.903519][ T10] netlink_unicast+0x449/0x710 [ 1122.903519][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.903519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.903519][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.903519][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.903519][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.903519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.903519][ T10] [ 1122.905200][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1122.905200][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1122.905200][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1122.905200][ T10] ipv6_find_idev+0x102/0x170 [ 1122.905200][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1122.905200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1122.905200][ T10] netlink_rcv_skb+0x130/0x360 [ 1122.905200][ T10] netlink_unicast+0x449/0x710 [ 1122.905200][ T10] netlink_sendmsg+0x723/0xbe0 [ 1122.905200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1122.905200][ T10] ___sys_sendmsg+0xee/0x170 [ 1122.905200][ T10] __sys_sendmsg+0xcd/0x170 [ 1122.905200][ T10] do_syscall_64+0xc6/0x1e0 [ 1122.905200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1122.905200][ T10] [ 1132.995660][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1132.996046][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1132.996046][ T10] netdev_get_by_index+0x5e/0x80 [ 1132.996046][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1132.996046][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1132.996046][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1132.996046][ T10] ipv6_add_addr+0x411/0x2000 [ 1132.996046][ T10] inet6_addr_add+0x30e/0xa40 [ 1132.996046][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1132.996046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1132.996046][ T10] netlink_rcv_skb+0x130/0x360 [ 1132.996046][ T10] netlink_unicast+0x449/0x710 [ 1132.996046][ T10] netlink_sendmsg+0x723/0xbe0 [ 1132.996046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1132.996046][ T10] ___sys_sendmsg+0xee/0x170 [ 1132.996046][ T10] __sys_sendmsg+0xcd/0x170 [ 1132.996046][ T10] do_syscall_64+0xc6/0x1e0 [ 1132.996046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1132.996046][ T10] [ 1132.998298][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1132.998298][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1132.998298][ T10] ipv6_find_idev+0x102/0x170 [ 1132.998298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1132.998298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1132.998298][ T10] netlink_rcv_skb+0x130/0x360 [ 1132.998298][ T10] netlink_unicast+0x449/0x710 [ 1132.998298][ T10] netlink_sendmsg+0x723/0xbe0 [ 1132.998298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1132.998298][ T10] ___sys_sendmsg+0xee/0x170 [ 1132.998298][ T10] __sys_sendmsg+0xcd/0x170 [ 1132.998298][ T10] do_syscall_64+0xc6/0x1e0 [ 1132.998298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1132.998298][ T10] [ 1133.000024][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1133.000024][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.000024][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.000024][ T10] ipv6_find_idev+0x102/0x170 [ 1133.000024][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.000024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.000024][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.000024][ T10] netlink_unicast+0x449/0x710 [ 1133.000024][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.000024][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.000024][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.000024][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.000024][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.000024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.000024][ T10] [ 1133.001933][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1133.002229][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1133.002229][ T10] netdev_get_by_index+0x5e/0x80 [ 1133.002229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1133.002229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1133.002229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1133.002229][ T10] ipv6_add_addr+0x411/0x2000 [ 1133.002229][ T10] inet6_addr_add+0x30e/0xa40 [ 1133.002229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1133.002229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.002229][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.002229][ T10] netlink_unicast+0x449/0x710 [ 1133.002229][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.002229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.002229][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.002229][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.002229][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.002229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.002229][ T10] [ 1133.004490][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1133.004490][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1133.004490][ T10] ipv6_find_idev+0x102/0x170 [ 1133.004490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.004490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.004490][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.004490][ T10] netlink_unicast+0x449/0x710 [ 1133.004490][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.004490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.004490][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.004490][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.004490][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.004490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.004490][ T10] [ 1133.006181][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1133.006181][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.006181][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.006181][ T10] ipv6_find_idev+0x102/0x170 [ 1133.006181][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.006181][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.006181][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.006181][ T10] netlink_unicast+0x449/0x710 [ 1133.006181][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.006181][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.006181][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.006181][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.006181][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.006181][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.006181][ T10] [ 1133.008032][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1133.008324][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1133.008324][ T10] netdev_get_by_index+0x5e/0x80 [ 1133.008324][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1133.008324][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1133.008324][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1133.008324][ T10] ipv6_add_addr+0x411/0x2000 [ 1133.008324][ T10] inet6_addr_add+0x30e/0xa40 [ 1133.008324][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1133.008324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.008324][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.008324][ T10] netlink_unicast+0x449/0x710 [ 1133.008324][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.008324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.008324][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.008324][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.008324][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.008324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.008324][ T10] [ 1133.010618][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1133.010618][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1133.010618][ T10] ipv6_find_idev+0x102/0x170 [ 1133.010618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.010618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.010618][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.010618][ T10] netlink_unicast+0x449/0x710 [ 1133.010618][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.010618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.010618][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.010618][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.010618][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.010618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.010618][ T10] [ 1133.012382][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1133.012382][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.012382][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.012382][ T10] ipv6_find_idev+0x102/0x170 [ 1133.012382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.012382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.012382][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.012382][ T10] netlink_unicast+0x449/0x710 [ 1133.012382][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.012382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.012382][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.012382][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.012382][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.012382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.012382][ T10] [ 1133.014276][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1133.014568][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1133.014568][ T10] netdev_get_by_index+0x5e/0x80 [ 1133.014568][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1133.014568][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1133.014568][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1133.014568][ T10] ipv6_add_addr+0x411/0x2000 [ 1133.014568][ T10] inet6_addr_add+0x30e/0xa40 [ 1133.014568][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1133.014568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.014568][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.014568][ T10] netlink_unicast+0x449/0x710 [ 1133.014568][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.014568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.014568][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.014568][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.014568][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.014568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.014568][ T10] [ 1133.016903][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1133.016903][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1133.016903][ T10] ipv6_find_idev+0x102/0x170 [ 1133.016903][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.016903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.016903][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.016903][ T10] netlink_unicast+0x449/0x710 [ 1133.016903][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.016903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.016903][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.016903][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.016903][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.016903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.016903][ T10] [ 1133.018846][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1133.018846][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.018846][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.018846][ T10] ipv6_find_idev+0x102/0x170 [ 1133.018846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.018846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.018846][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.018846][ T10] netlink_unicast+0x449/0x710 [ 1133.018846][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.018846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.018846][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.018846][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.018846][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.018846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.018846][ T10] [ 1133.020930][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1133.021219][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1133.021219][ T10] netdev_get_by_index+0x5e/0x80 [ 1133.021219][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1133.021219][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1133.021219][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1133.021219][ T10] ipv6_add_addr+0x411/0x2000 [ 1133.021219][ T10] inet6_addr_add+0x30e/0xa40 [ 1133.021219][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1133.021219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.021219][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.021219][ T10] netlink_unicast+0x449/0x710 [ 1133.021219][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.021219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.021219][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.021219][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.021219][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.021219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.021219][ T10] [ 1133.023636][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1133.023636][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1133.023636][ T10] ipv6_find_idev+0x102/0x170 [ 1133.023636][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.023636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.023636][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.023636][ T10] netlink_unicast+0x449/0x710 [ 1133.023636][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.023636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.023636][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.023636][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.023636][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.023636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.023636][ T10] [ 1133.025468][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1133.025468][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.025468][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.025468][ T10] ipv6_find_idev+0x102/0x170 [ 1133.025468][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.025468][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.025468][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.025468][ T10] netlink_unicast+0x449/0x710 [ 1133.025468][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.025468][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.025468][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.025468][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.025468][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.025468][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.025468][ T10] [ 1133.027618][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1133.027973][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1133.027973][ T10] netdev_get_by_index+0x5e/0x80 [ 1133.027973][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1133.027973][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1133.027973][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1133.027973][ T10] ipv6_add_addr+0x411/0x2000 [ 1133.027973][ T10] inet6_addr_add+0x30e/0xa40 [ 1133.027973][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1133.027973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.027973][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.027973][ T10] netlink_unicast+0x449/0x710 [ 1133.027973][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.027973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.027973][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.027973][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.027973][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.027973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.027973][ T10] [ 1133.030426][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1133.030426][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1133.030426][ T10] ipv6_find_idev+0x102/0x170 [ 1133.030426][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.030426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.030426][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.030426][ T10] netlink_unicast+0x449/0x710 [ 1133.030426][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.030426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.030426][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.030426][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.030426][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.030426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.030426][ T10] [ 1133.032259][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1133.032259][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.032259][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.032259][ T10] ipv6_find_idev+0x102/0x170 [ 1133.032259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.032259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.032259][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.032259][ T10] netlink_unicast+0x449/0x710 [ 1133.032259][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.032259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.032259][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.032259][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.032259][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.032259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.032259][ T10] [ 1133.034348][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1133.034642][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1133.034642][ T10] netdev_get_by_index+0x5e/0x80 [ 1133.034642][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1133.034642][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1133.034642][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1133.034642][ T10] ipv6_add_addr+0x411/0x2000 [ 1133.034642][ T10] inet6_addr_add+0x30e/0xa40 [ 1133.034642][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1133.034642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.034642][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.034642][ T10] netlink_unicast+0x449/0x710 [ 1133.034642][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.034642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.034642][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.034642][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.034642][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.034642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.034642][ T10] [ 1133.036863][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1133.036863][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1133.036863][ T10] ipv6_find_idev+0x102/0x170 [ 1133.036863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.036863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.036863][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.036863][ T10] netlink_unicast+0x449/0x710 [ 1133.036863][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.036863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.036863][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.036863][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.036863][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.036863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.036863][ T10] [ 1133.038637][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1133.038637][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.038637][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.038637][ T10] ipv6_find_idev+0x102/0x170 [ 1133.038637][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.038637][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.038637][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.038637][ T10] netlink_unicast+0x449/0x710 [ 1133.038637][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.038637][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.038637][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.038637][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.038637][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.038637][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.038637][ T10] [ 1133.040725][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1133.041018][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1133.041018][ T10] netdev_get_by_index+0x5e/0x80 [ 1133.041018][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1133.041018][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1133.041018][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1133.041018][ T10] ipv6_add_addr+0x411/0x2000 [ 1133.041018][ T10] inet6_addr_add+0x30e/0xa40 [ 1133.041018][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1133.041018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.041018][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.041018][ T10] netlink_unicast+0x449/0x710 [ 1133.041018][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.041018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.041018][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.041018][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.041018][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.041018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.041018][ T10] [ 1133.043437][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1133.043437][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1133.043437][ T10] ipv6_find_idev+0x102/0x170 [ 1133.043437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.043437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.043437][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.043437][ T10] netlink_unicast+0x449/0x710 [ 1133.043437][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.043437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.043437][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.043437][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.043437][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.043437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.043437][ T10] [ 1133.045381][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1133.045381][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1133.045381][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1133.045381][ T10] ipv6_find_idev+0x102/0x170 [ 1133.045381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1133.045381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1133.045381][ T10] netlink_rcv_skb+0x130/0x360 [ 1133.045381][ T10] netlink_unicast+0x449/0x710 [ 1133.045381][ T10] netlink_sendmsg+0x723/0xbe0 [ 1133.045381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1133.045381][ T10] ___sys_sendmsg+0xee/0x170 [ 1133.045381][ T10] __sys_sendmsg+0xcd/0x170 [ 1133.045381][ T10] do_syscall_64+0xc6/0x1e0 [ 1133.045381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1133.045381][ T10] [ 1143.187799][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1143.188223][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1143.188223][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.188223][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.188223][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.188223][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.188223][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.188223][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.188223][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.188223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.188223][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.188223][ T10] netlink_unicast+0x449/0x710 [ 1143.188223][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.188223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.188223][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.188223][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.188223][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.188223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.188223][ T10] [ 1143.190477][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1143.190477][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.190477][ T10] ipv6_find_idev+0x102/0x170 [ 1143.190477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.190477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.190477][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.190477][ T10] netlink_unicast+0x449/0x710 [ 1143.190477][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.190477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.190477][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.190477][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.190477][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.190477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.190477][ T10] [ 1143.192221][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1143.192221][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.192221][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.192221][ T10] ipv6_find_idev+0x102/0x170 [ 1143.192221][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.192221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.192221][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.192221][ T10] netlink_unicast+0x449/0x710 [ 1143.192221][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.192221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.192221][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.192221][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.192221][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.192221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.192221][ T10] [ 1143.194112][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1143.194424][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1143.194424][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.194424][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.194424][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.194424][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.194424][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.194424][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.194424][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.194424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.194424][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.194424][ T10] netlink_unicast+0x449/0x710 [ 1143.194424][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.194424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.194424][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.194424][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.194424][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.194424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.194424][ T10] [ 1143.196642][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1143.196642][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.196642][ T10] ipv6_find_idev+0x102/0x170 [ 1143.196642][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.196642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.196642][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.196642][ T10] netlink_unicast+0x449/0x710 [ 1143.196642][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.196642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.196642][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.196642][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.196642][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.196642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.196642][ T10] [ 1143.198630][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1143.198630][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.198630][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.198630][ T10] ipv6_find_idev+0x102/0x170 [ 1143.198630][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.198630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.198630][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.198630][ T10] netlink_unicast+0x449/0x710 [ 1143.198630][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.198630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.198630][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.198630][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.198630][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.198630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.198630][ T10] [ 1143.200699][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1143.201059][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1143.201059][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.201059][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.201059][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.201059][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.201059][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.201059][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.201059][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.201059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.201059][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.201059][ T10] netlink_unicast+0x449/0x710 [ 1143.201059][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.201059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.201059][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.201059][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.201059][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.201059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.201059][ T10] [ 1143.203303][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1143.203303][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.203303][ T10] ipv6_find_idev+0x102/0x170 [ 1143.203303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.203303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.203303][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.203303][ T10] netlink_unicast+0x449/0x710 [ 1143.203303][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.203303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.203303][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.203303][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.203303][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.203303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.203303][ T10] [ 1143.205203][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1143.205203][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.205203][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.205203][ T10] ipv6_find_idev+0x102/0x170 [ 1143.205203][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.205203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.205203][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.205203][ T10] netlink_unicast+0x449/0x710 [ 1143.205203][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.205203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.205203][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.205203][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.205203][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.205203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.205203][ T10] [ 1143.207273][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1143.207559][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1143.207559][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.207559][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.207559][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.207559][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.207559][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.207559][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.207559][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.207559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.207559][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.207559][ T10] netlink_unicast+0x449/0x710 [ 1143.207559][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.207559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.207559][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.207559][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.207559][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.207559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.207559][ T10] [ 1143.210024][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1143.210024][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.210024][ T10] ipv6_find_idev+0x102/0x170 [ 1143.210024][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.210024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.210024][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.210024][ T10] netlink_unicast+0x449/0x710 [ 1143.210024][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.210024][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.210024][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.210024][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.210024][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.210024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.210024][ T10] [ 1143.211906][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1143.211906][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.211906][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.211906][ T10] ipv6_find_idev+0x102/0x170 [ 1143.211906][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.211906][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.211906][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.211906][ T10] netlink_unicast+0x449/0x710 [ 1143.211906][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.211906][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.211906][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.211906][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.211906][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.211906][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.211906][ T10] [ 1143.213974][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1143.214343][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1143.214343][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.214343][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.214343][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.214343][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.214343][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.214343][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.214343][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.214343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.214343][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.214343][ T10] netlink_unicast+0x449/0x710 [ 1143.214343][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.214343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.214343][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.214343][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.214343][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.214343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.214343][ T10] [ 1143.216847][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1143.216847][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.216847][ T10] ipv6_find_idev+0x102/0x170 [ 1143.216847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.216847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.216847][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.216847][ T10] netlink_unicast+0x449/0x710 [ 1143.216847][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.216847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.216847][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.216847][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.216847][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.216847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.216847][ T10] [ 1143.218727][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1143.218727][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.218727][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.218727][ T10] ipv6_find_idev+0x102/0x170 [ 1143.218727][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.218727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.218727][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.218727][ T10] netlink_unicast+0x449/0x710 [ 1143.218727][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.218727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.218727][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.218727][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.218727][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.218727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.218727][ T10] [ 1143.221146][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1143.221455][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1143.221455][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.221455][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.221455][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.221455][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.221455][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.221455][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.221455][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.221455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.221455][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.221455][ T10] netlink_unicast+0x449/0x710 [ 1143.221455][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.221455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.221455][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.221455][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.221455][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.221455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.221455][ T10] [ 1143.223693][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1143.223693][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.223693][ T10] ipv6_find_idev+0x102/0x170 [ 1143.223693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.223693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.223693][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.223693][ T10] netlink_unicast+0x449/0x710 [ 1143.223693][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.223693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.223693][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.223693][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.223693][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.223693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.223693][ T10] [ 1143.225556][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1143.225556][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.225556][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.225556][ T10] ipv6_find_idev+0x102/0x170 [ 1143.225556][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.225556][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.225556][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.225556][ T10] netlink_unicast+0x449/0x710 [ 1143.225556][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.225556][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.225556][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.225556][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.225556][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.225556][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.225556][ T10] [ 1143.227521][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1143.227872][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1143.227872][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.227872][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.227872][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.227872][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.227872][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.227872][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.227872][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.227872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.227872][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.227872][ T10] netlink_unicast+0x449/0x710 [ 1143.227872][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.227872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.227872][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.227872][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.227872][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.227872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.227872][ T10] [ 1143.230085][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1143.230085][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.230085][ T10] ipv6_find_idev+0x102/0x170 [ 1143.230085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.230085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.230085][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.230085][ T10] netlink_unicast+0x449/0x710 [ 1143.230085][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.230085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.230085][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.230085][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.230085][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.230085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.230085][ T10] [ 1143.231789][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1143.231789][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.231789][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.231789][ T10] ipv6_find_idev+0x102/0x170 [ 1143.231789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.231789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.231789][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.231789][ T10] netlink_unicast+0x449/0x710 [ 1143.231789][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.231789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.231789][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.231789][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.231789][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.231789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.231789][ T10] [ 1143.233842][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1143.234128][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1143.234128][ T10] netdev_get_by_index+0x5e/0x80 [ 1143.234128][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1143.234128][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1143.234128][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1143.234128][ T10] ipv6_add_addr+0x411/0x2000 [ 1143.234128][ T10] inet6_addr_add+0x30e/0xa40 [ 1143.234128][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1143.234128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.234128][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.234128][ T10] netlink_unicast+0x449/0x710 [ 1143.234128][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.234128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.234128][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.234128][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.234128][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.234128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.234128][ T10] [ 1143.236556][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1143.236556][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1143.236556][ T10] ipv6_find_idev+0x102/0x170 [ 1143.236556][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.236556][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.236556][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.236556][ T10] netlink_unicast+0x449/0x710 [ 1143.236556][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.236556][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.236556][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.236556][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.236556][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.236556][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.236556][ T10] [ 1143.238398][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1143.238398][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1143.238398][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1143.238398][ T10] ipv6_find_idev+0x102/0x170 [ 1143.238398][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1143.238398][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1143.238398][ T10] netlink_rcv_skb+0x130/0x360 [ 1143.238398][ T10] netlink_unicast+0x449/0x710 [ 1143.238398][ T10] netlink_sendmsg+0x723/0xbe0 [ 1143.238398][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1143.238398][ T10] ___sys_sendmsg+0xee/0x170 [ 1143.238398][ T10] __sys_sendmsg+0xcd/0x170 [ 1143.238398][ T10] do_syscall_64+0xc6/0x1e0 [ 1143.238398][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1143.238398][ T10] [ 1153.355678][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1153.356171][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1153.356171][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.356171][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.356171][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.356171][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.356171][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.356171][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.356171][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.356171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.356171][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.356171][ T10] netlink_unicast+0x449/0x710 [ 1153.356171][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.356171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.356171][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.356171][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.356171][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.356171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.356171][ T10] [ 1153.358512][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1153.358512][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.358512][ T10] ipv6_find_idev+0x102/0x170 [ 1153.358512][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.358512][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.358512][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.358512][ T10] netlink_unicast+0x449/0x710 [ 1153.358512][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.358512][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.358512][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.358512][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.358512][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.358512][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.358512][ T10] [ 1153.360292][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1153.360292][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.360292][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.360292][ T10] ipv6_find_idev+0x102/0x170 [ 1153.360292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.360292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.360292][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.360292][ T10] netlink_unicast+0x449/0x710 [ 1153.360292][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.360292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.360292][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.360292][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.360292][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.360292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.360292][ T10] [ 1153.362432][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1153.362760][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1153.362760][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.362760][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.362760][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.362760][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.362760][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.362760][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.362760][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.362760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.362760][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.362760][ T10] netlink_unicast+0x449/0x710 [ 1153.362760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.362760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.362760][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.362760][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.362760][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.362760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.362760][ T10] [ 1153.365089][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1153.365089][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.365089][ T10] ipv6_find_idev+0x102/0x170 [ 1153.365089][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.365089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.365089][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.365089][ T10] netlink_unicast+0x449/0x710 [ 1153.365089][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.365089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.365089][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.365089][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.365089][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.365089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.365089][ T10] [ 1153.366862][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1153.366862][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.366862][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.366862][ T10] ipv6_find_idev+0x102/0x170 [ 1153.366862][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.366862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.366862][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.366862][ T10] netlink_unicast+0x449/0x710 [ 1153.366862][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.366862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.366862][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.366862][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.366862][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.366862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.366862][ T10] [ 1153.369116][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1153.369435][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1153.369435][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.369435][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.369435][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.369435][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.369435][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.369435][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.369435][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.369435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.369435][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.369435][ T10] netlink_unicast+0x449/0x710 [ 1153.369435][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.369435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.369435][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.369435][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.369435][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.369435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.369435][ T10] [ 1153.371727][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1153.371727][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.371727][ T10] ipv6_find_idev+0x102/0x170 [ 1153.371727][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.371727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.371727][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.371727][ T10] netlink_unicast+0x449/0x710 [ 1153.371727][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.371727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.371727][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.371727][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.371727][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.371727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.371727][ T10] [ 1153.373499][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1153.373499][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.373499][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.373499][ T10] ipv6_find_idev+0x102/0x170 [ 1153.373499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.373499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.373499][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.373499][ T10] netlink_unicast+0x449/0x710 [ 1153.373499][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.373499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.373499][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.373499][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.373499][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.373499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.373499][ T10] [ 1153.376103][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1153.376427][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1153.376427][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.376427][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.376427][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.376427][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.376427][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.376427][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.376427][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.376427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.376427][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.376427][ T10] netlink_unicast+0x449/0x710 [ 1153.376427][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.376427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.376427][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.376427][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.376427][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.376427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.376427][ T10] [ 1153.378743][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1153.378743][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.378743][ T10] ipv6_find_idev+0x102/0x170 [ 1153.378743][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.378743][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.378743][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.378743][ T10] netlink_unicast+0x449/0x710 [ 1153.378743][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.378743][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.378743][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.378743][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.378743][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.378743][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.378743][ T10] [ 1153.380544][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1153.380544][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.380544][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.380544][ T10] ipv6_find_idev+0x102/0x170 [ 1153.380544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.380544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.380544][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.380544][ T10] netlink_unicast+0x449/0x710 [ 1153.380544][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.380544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.380544][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.380544][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.380544][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.380544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.380544][ T10] [ 1153.382628][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1153.383389][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1153.383389][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.383389][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.383389][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.383389][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.383389][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.383389][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.383389][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.383389][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.383389][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.383389][ T10] netlink_unicast+0x449/0x710 [ 1153.383389][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.383389][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.383389][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.383389][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.383389][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.383389][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.383389][ T10] [ 1153.385729][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1153.385729][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.385729][ T10] ipv6_find_idev+0x102/0x170 [ 1153.385729][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.385729][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.385729][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.385729][ T10] netlink_unicast+0x449/0x710 [ 1153.385729][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.385729][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.385729][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.385729][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.385729][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.385729][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.385729][ T10] [ 1153.387565][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1153.387565][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.387565][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.387565][ T10] ipv6_find_idev+0x102/0x170 [ 1153.387565][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.387565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.387565][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.387565][ T10] netlink_unicast+0x449/0x710 [ 1153.387565][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.387565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.387565][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.387565][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.387565][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.387565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.387565][ T10] [ 1153.389800][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1153.391092][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1153.391092][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.391092][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.391092][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.391092][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.391092][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.391092][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.391092][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.391092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.391092][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.391092][ T10] netlink_unicast+0x449/0x710 [ 1153.391092][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.391092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.391092][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.391092][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.391092][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.391092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.391092][ T10] [ 1153.393496][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1153.393496][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.393496][ T10] ipv6_find_idev+0x102/0x170 [ 1153.393496][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.393496][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.393496][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.393496][ T10] netlink_unicast+0x449/0x710 [ 1153.393496][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.393496][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.393496][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.393496][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.393496][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.393496][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.393496][ T10] [ 1153.395352][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1153.395352][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.395352][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.395352][ T10] ipv6_find_idev+0x102/0x170 [ 1153.395352][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.395352][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.395352][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.395352][ T10] netlink_unicast+0x449/0x710 [ 1153.395352][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.395352][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.395352][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.395352][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.395352][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.395352][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.395352][ T10] [ 1153.397563][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1153.398501][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1153.398501][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.398501][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.398501][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.398501][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.398501][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.398501][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.398501][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.398501][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.398501][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.398501][ T10] netlink_unicast+0x449/0x710 [ 1153.398501][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.398501][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.398501][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.398501][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.398501][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.398501][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.398501][ T10] [ 1153.401035][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1153.401035][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.401035][ T10] ipv6_find_idev+0x102/0x170 [ 1153.401035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.401035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.401035][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.401035][ T10] netlink_unicast+0x449/0x710 [ 1153.401035][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.401035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.401035][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.401035][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.401035][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.401035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.401035][ T10] [ 1153.402932][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1153.402932][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.402932][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.402932][ T10] ipv6_find_idev+0x102/0x170 [ 1153.402932][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.402932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.402932][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.402932][ T10] netlink_unicast+0x449/0x710 [ 1153.402932][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.402932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.402932][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.402932][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.402932][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.402932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.402932][ T10] [ 1153.405087][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1153.405660][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1153.405660][ T10] netdev_get_by_index+0x5e/0x80 [ 1153.405660][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1153.405660][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1153.405660][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1153.405660][ T10] ipv6_add_addr+0x411/0x2000 [ 1153.405660][ T10] inet6_addr_add+0x30e/0xa40 [ 1153.405660][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1153.405660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.405660][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.405660][ T10] netlink_unicast+0x449/0x710 [ 1153.405660][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.405660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.405660][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.405660][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.405660][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.405660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.405660][ T10] [ 1153.408122][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1153.408122][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1153.408122][ T10] ipv6_find_idev+0x102/0x170 [ 1153.408122][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.408122][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.408122][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.408122][ T10] netlink_unicast+0x449/0x710 [ 1153.408122][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.408122][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.408122][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.408122][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.408122][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.408122][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.408122][ T10] [ 1153.410120][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1153.410120][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1153.410120][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1153.410120][ T10] ipv6_find_idev+0x102/0x170 [ 1153.410120][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1153.410120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1153.410120][ T10] netlink_rcv_skb+0x130/0x360 [ 1153.410120][ T10] netlink_unicast+0x449/0x710 [ 1153.410120][ T10] netlink_sendmsg+0x723/0xbe0 [ 1153.410120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1153.410120][ T10] ___sys_sendmsg+0xee/0x170 [ 1153.410120][ T10] __sys_sendmsg+0xcd/0x170 [ 1153.410120][ T10] do_syscall_64+0xc6/0x1e0 [ 1153.410120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1153.410120][ T10] [ 1163.435763][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1163.436168][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1163.436168][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.436168][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.436168][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.436168][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.436168][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.436168][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.436168][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.436168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.436168][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.436168][ T10] netlink_unicast+0x449/0x710 [ 1163.436168][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.436168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.436168][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.436168][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.436168][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.436168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.436168][ T10] [ 1163.438268][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1163.438268][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.438268][ T10] ipv6_find_idev+0x102/0x170 [ 1163.438268][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.438268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.438268][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.438268][ T10] netlink_unicast+0x449/0x710 [ 1163.438268][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.438268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.438268][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.438268][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.438268][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.438268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.438268][ T10] [ 1163.439871][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1163.439871][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.439871][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.439871][ T10] ipv6_find_idev+0x102/0x170 [ 1163.439871][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.439871][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.439871][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.439871][ T10] netlink_unicast+0x449/0x710 [ 1163.439871][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.439871][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.439871][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.439871][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.439871][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.439871][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.439871][ T10] [ 1163.441767][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1163.442121][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1163.442121][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.442121][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.442121][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.442121][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.442121][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.442121][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.442121][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.442121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.442121][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.442121][ T10] netlink_unicast+0x449/0x710 [ 1163.442121][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.442121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.442121][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.442121][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.442121][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.442121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.442121][ T10] [ 1163.444183][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1163.444183][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.444183][ T10] ipv6_find_idev+0x102/0x170 [ 1163.444183][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.444183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.444183][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.444183][ T10] netlink_unicast+0x449/0x710 [ 1163.444183][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.444183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.444183][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.444183][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.444183][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.444183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.444183][ T10] [ 1163.445799][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1163.445799][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.445799][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.445799][ T10] ipv6_find_idev+0x102/0x170 [ 1163.445799][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.445799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.445799][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.445799][ T10] netlink_unicast+0x449/0x710 [ 1163.445799][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.445799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.445799][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.445799][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.445799][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.445799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.445799][ T10] [ 1163.447556][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1163.447845][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1163.447845][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.447845][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.447845][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.447845][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.447845][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.447845][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.447845][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.447845][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.447845][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.447845][ T10] netlink_unicast+0x449/0x710 [ 1163.447845][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.447845][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.447845][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.447845][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.447845][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.447845][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.447845][ T10] [ 1163.449889][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1163.449889][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.449889][ T10] ipv6_find_idev+0x102/0x170 [ 1163.449889][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.449889][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.449889][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.449889][ T10] netlink_unicast+0x449/0x710 [ 1163.449889][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.449889][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.449889][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.449889][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.449889][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.449889][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.449889][ T10] [ 1163.451444][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1163.451444][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.451444][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.451444][ T10] ipv6_find_idev+0x102/0x170 [ 1163.451444][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.451444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.451444][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.451444][ T10] netlink_unicast+0x449/0x710 [ 1163.451444][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.451444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.451444][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.451444][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.451444][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.451444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.451444][ T10] [ 1163.453139][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1163.453406][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1163.453406][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.453406][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.453406][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.453406][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.453406][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.453406][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.453406][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.453406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.453406][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.453406][ T10] netlink_unicast+0x449/0x710 [ 1163.453406][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.453406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.453406][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.453406][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.453406][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.453406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.453406][ T10] [ 1163.455462][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1163.455462][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.455462][ T10] ipv6_find_idev+0x102/0x170 [ 1163.455462][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.455462][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.455462][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.455462][ T10] netlink_unicast+0x449/0x710 [ 1163.455462][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.455462][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.455462][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.455462][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.455462][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.455462][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.455462][ T10] [ 1163.457003][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1163.457003][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.457003][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.457003][ T10] ipv6_find_idev+0x102/0x170 [ 1163.457003][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.457003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.457003][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.457003][ T10] netlink_unicast+0x449/0x710 [ 1163.457003][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.457003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.457003][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.457003][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.457003][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.457003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.457003][ T10] [ 1163.459120][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1163.459385][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1163.459385][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.459385][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.459385][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.459385][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.459385][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.459385][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.459385][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.459385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.459385][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.459385][ T10] netlink_unicast+0x449/0x710 [ 1163.459385][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.459385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.459385][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.459385][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.459385][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.459385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.459385][ T10] [ 1163.461410][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1163.461410][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.461410][ T10] ipv6_find_idev+0x102/0x170 [ 1163.461410][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.461410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.461410][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.461410][ T10] netlink_unicast+0x449/0x710 [ 1163.461410][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.461410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.461410][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.461410][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.461410][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.461410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.461410][ T10] [ 1163.462966][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1163.462966][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.462966][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.462966][ T10] ipv6_find_idev+0x102/0x170 [ 1163.462966][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.462966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.462966][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.462966][ T10] netlink_unicast+0x449/0x710 [ 1163.462966][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.462966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.462966][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.462966][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.462966][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.462966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.462966][ T10] [ 1163.464725][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1163.464994][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1163.464994][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.464994][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.464994][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.464994][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.464994][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.464994][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.464994][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.464994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.464994][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.464994][ T10] netlink_unicast+0x449/0x710 [ 1163.464994][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.464994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.464994][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.464994][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.464994][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.464994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.464994][ T10] [ 1163.467335][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1163.467335][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.467335][ T10] ipv6_find_idev+0x102/0x170 [ 1163.467335][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.467335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.467335][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.467335][ T10] netlink_unicast+0x449/0x710 [ 1163.467335][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.467335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.467335][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.467335][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.467335][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.467335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.467335][ T10] [ 1163.469165][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1163.469165][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.469165][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.469165][ T10] ipv6_find_idev+0x102/0x170 [ 1163.469165][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.469165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.469165][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.469165][ T10] netlink_unicast+0x449/0x710 [ 1163.469165][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.469165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.469165][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.469165][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.469165][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.469165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.469165][ T10] [ 1163.471113][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1163.471390][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1163.471390][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.471390][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.471390][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.471390][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.471390][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.471390][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.471390][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.471390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.471390][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.471390][ T10] netlink_unicast+0x449/0x710 [ 1163.471390][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.471390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.471390][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.471390][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.471390][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.471390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.471390][ T10] [ 1163.473600][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1163.473600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.473600][ T10] ipv6_find_idev+0x102/0x170 [ 1163.473600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.473600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.473600][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.473600][ T10] netlink_unicast+0x449/0x710 [ 1163.473600][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.473600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.473600][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.473600][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.473600][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.473600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.473600][ T10] [ 1163.475349][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1163.475349][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.475349][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.475349][ T10] ipv6_find_idev+0x102/0x170 [ 1163.475349][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.475349][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.475349][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.475349][ T10] netlink_unicast+0x449/0x710 [ 1163.475349][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.475349][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.475349][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.475349][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.475349][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.475349][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.475349][ T10] [ 1163.477469][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1163.477810][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1163.477810][ T10] netdev_get_by_index+0x5e/0x80 [ 1163.477810][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1163.477810][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1163.477810][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1163.477810][ T10] ipv6_add_addr+0x411/0x2000 [ 1163.477810][ T10] inet6_addr_add+0x30e/0xa40 [ 1163.477810][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1163.477810][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.477810][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.477810][ T10] netlink_unicast+0x449/0x710 [ 1163.477810][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.477810][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.477810][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.477810][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.477810][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.477810][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.477810][ T10] [ 1163.480022][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1163.480022][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1163.480022][ T10] ipv6_find_idev+0x102/0x170 [ 1163.480022][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.480022][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.480022][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.480022][ T10] netlink_unicast+0x449/0x710 [ 1163.480022][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.480022][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.480022][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.480022][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.480022][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.480022][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.480022][ T10] [ 1163.481757][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1163.481757][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1163.481757][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1163.481757][ T10] ipv6_find_idev+0x102/0x170 [ 1163.481757][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1163.481757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1163.481757][ T10] netlink_rcv_skb+0x130/0x360 [ 1163.481757][ T10] netlink_unicast+0x449/0x710 [ 1163.481757][ T10] netlink_sendmsg+0x723/0xbe0 [ 1163.481757][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1163.481757][ T10] ___sys_sendmsg+0xee/0x170 [ 1163.481757][ T10] __sys_sendmsg+0xcd/0x170 [ 1163.481757][ T10] do_syscall_64+0xc6/0x1e0 [ 1163.481757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1163.481757][ T10] [ 1173.595753][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1173.596215][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1173.596215][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.596215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.596215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.596215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.596215][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.596215][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.596215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.596215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.596215][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.596215][ T10] netlink_unicast+0x449/0x710 [ 1173.596215][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.596215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.596215][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.596215][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.596215][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.596215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.596215][ T10] [ 1173.598524][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1173.598524][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.598524][ T10] ipv6_find_idev+0x102/0x170 [ 1173.598524][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.598524][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.598524][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.598524][ T10] netlink_unicast+0x449/0x710 [ 1173.598524][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.598524][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.598524][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.598524][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.598524][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.598524][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.598524][ T10] [ 1173.600266][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1173.600266][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.600266][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.600266][ T10] ipv6_find_idev+0x102/0x170 [ 1173.600266][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.600266][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.600266][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.600266][ T10] netlink_unicast+0x449/0x710 [ 1173.600266][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.600266][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.600266][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.600266][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.600266][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.600266][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.600266][ T10] [ 1173.602186][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1173.602491][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1173.602491][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.602491][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.602491][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.602491][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.602491][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.602491][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.602491][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.602491][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.602491][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.602491][ T10] netlink_unicast+0x449/0x710 [ 1173.602491][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.602491][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.602491][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.602491][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.602491][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.602491][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.602491][ T10] [ 1173.604778][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1173.604778][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.604778][ T10] ipv6_find_idev+0x102/0x170 [ 1173.604778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.604778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.604778][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.604778][ T10] netlink_unicast+0x449/0x710 [ 1173.604778][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.604778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.604778][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.604778][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.604778][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.604778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.604778][ T10] [ 1173.606529][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1173.606529][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.606529][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.606529][ T10] ipv6_find_idev+0x102/0x170 [ 1173.606529][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.606529][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.606529][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.606529][ T10] netlink_unicast+0x449/0x710 [ 1173.606529][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.606529][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.606529][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.606529][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.606529][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.606529][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.606529][ T10] [ 1173.608784][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1173.609099][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1173.609099][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.609099][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.609099][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.609099][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.609099][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.609099][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.609099][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.609099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.609099][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.609099][ T10] netlink_unicast+0x449/0x710 [ 1173.609099][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.609099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.609099][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.609099][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.609099][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.609099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.609099][ T10] [ 1173.611471][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1173.611471][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.611471][ T10] ipv6_find_idev+0x102/0x170 [ 1173.611471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.611471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.611471][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.611471][ T10] netlink_unicast+0x449/0x710 [ 1173.611471][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.611471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.611471][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.611471][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.611471][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.611471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.611471][ T10] [ 1173.613399][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1173.613399][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.613399][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.613399][ T10] ipv6_find_idev+0x102/0x170 [ 1173.613399][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.613399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.613399][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.613399][ T10] netlink_unicast+0x449/0x710 [ 1173.613399][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.613399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.613399][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.613399][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.613399][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.613399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.613399][ T10] [ 1173.615543][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1173.615857][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1173.615857][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.615857][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.615857][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.615857][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.615857][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.615857][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.615857][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.615857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.615857][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.615857][ T10] netlink_unicast+0x449/0x710 [ 1173.615857][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.615857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.615857][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.615857][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.615857][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.615857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.615857][ T10] [ 1173.618293][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1173.618293][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.618293][ T10] ipv6_find_idev+0x102/0x170 [ 1173.618293][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.618293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.618293][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.618293][ T10] netlink_unicast+0x449/0x710 [ 1173.618293][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.618293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.618293][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.618293][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.618293][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.618293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.618293][ T10] [ 1173.620230][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1173.620230][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.620230][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.620230][ T10] ipv6_find_idev+0x102/0x170 [ 1173.620230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.620230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.620230][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.620230][ T10] netlink_unicast+0x449/0x710 [ 1173.620230][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.620230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.620230][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.620230][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.620230][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.620230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.620230][ T10] [ 1173.622498][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1173.623242][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1173.623242][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.623242][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.623242][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.623242][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.623242][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.623242][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.623242][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.623242][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.623242][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.623242][ T10] netlink_unicast+0x449/0x710 [ 1173.623242][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.623242][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.623242][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.623242][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.623242][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.623242][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.623242][ T10] [ 1173.625510][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1173.625510][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.625510][ T10] ipv6_find_idev+0x102/0x170 [ 1173.625510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.625510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.625510][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.625510][ T10] netlink_unicast+0x449/0x710 [ 1173.625510][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.625510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.625510][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.625510][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.625510][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.625510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.625510][ T10] [ 1173.627262][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1173.627262][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.627262][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.627262][ T10] ipv6_find_idev+0x102/0x170 [ 1173.627262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.627262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.627262][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.627262][ T10] netlink_unicast+0x449/0x710 [ 1173.627262][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.627262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.627262][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.627262][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.627262][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.627262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.627262][ T10] [ 1173.629212][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1173.629575][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1173.629575][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.629575][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.629575][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.629575][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.629575][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.629575][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.629575][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.629575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.629575][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.629575][ T10] netlink_unicast+0x449/0x710 [ 1173.629575][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.629575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.629575][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.629575][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.629575][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.629575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.629575][ T10] [ 1173.631921][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1173.631921][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.631921][ T10] ipv6_find_idev+0x102/0x170 [ 1173.631921][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.631921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.631921][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.631921][ T10] netlink_unicast+0x449/0x710 [ 1173.631921][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.631921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.631921][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.631921][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.631921][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.631921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.631921][ T10] [ 1173.633728][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1173.633728][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.633728][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.633728][ T10] ipv6_find_idev+0x102/0x170 [ 1173.633728][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.633728][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.633728][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.633728][ T10] netlink_unicast+0x449/0x710 [ 1173.633728][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.633728][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.633728][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.633728][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.633728][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.633728][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.633728][ T10] [ 1173.635990][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1173.636322][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1173.636322][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.636322][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.636322][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.636322][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.636322][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.636322][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.636322][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.636322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.636322][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.636322][ T10] netlink_unicast+0x449/0x710 [ 1173.636322][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.636322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.636322][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.636322][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.636322][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.636322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.636322][ T10] [ 1173.638834][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1173.638834][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.638834][ T10] ipv6_find_idev+0x102/0x170 [ 1173.638834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.638834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.638834][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.638834][ T10] netlink_unicast+0x449/0x710 [ 1173.638834][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.638834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.638834][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.638834][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.638834][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.638834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.638834][ T10] [ 1173.640793][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1173.640793][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.640793][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.640793][ T10] ipv6_find_idev+0x102/0x170 [ 1173.640793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.640793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.640793][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.640793][ T10] netlink_unicast+0x449/0x710 [ 1173.640793][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.640793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.640793][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.640793][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.640793][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.640793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.640793][ T10] [ 1173.642888][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1173.643229][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1173.643229][ T10] netdev_get_by_index+0x5e/0x80 [ 1173.643229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1173.643229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1173.643229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1173.643229][ T10] ipv6_add_addr+0x411/0x2000 [ 1173.643229][ T10] inet6_addr_add+0x30e/0xa40 [ 1173.643229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1173.643229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.643229][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.643229][ T10] netlink_unicast+0x449/0x710 [ 1173.643229][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.643229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.643229][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.643229][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.643229][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.643229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.643229][ T10] [ 1173.645759][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1173.645759][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1173.645759][ T10] ipv6_find_idev+0x102/0x170 [ 1173.645759][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.645759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.645759][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.645759][ T10] netlink_unicast+0x449/0x710 [ 1173.645759][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.645759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.645759][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.645759][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.645759][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.645759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.645759][ T10] [ 1173.647670][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1173.647670][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1173.647670][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1173.647670][ T10] ipv6_find_idev+0x102/0x170 [ 1173.647670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1173.647670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1173.647670][ T10] netlink_rcv_skb+0x130/0x360 [ 1173.647670][ T10] netlink_unicast+0x449/0x710 [ 1173.647670][ T10] netlink_sendmsg+0x723/0xbe0 [ 1173.647670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1173.647670][ T10] ___sys_sendmsg+0xee/0x170 [ 1173.647670][ T10] __sys_sendmsg+0xcd/0x170 [ 1173.647670][ T10] do_syscall_64+0xc6/0x1e0 [ 1173.647670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1173.647670][ T10] [ 1183.779786][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1183.780302][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1183.780302][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.780302][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.780302][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.780302][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.780302][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.780302][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.780302][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.780302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.780302][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.780302][ T10] netlink_unicast+0x449/0x710 [ 1183.780302][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.780302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.780302][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.780302][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.780302][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.780302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.780302][ T10] [ 1183.782367][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1183.782367][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.782367][ T10] ipv6_find_idev+0x102/0x170 [ 1183.782367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.782367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.782367][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.782367][ T10] netlink_unicast+0x449/0x710 [ 1183.782367][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.782367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.782367][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.782367][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.782367][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.782367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.782367][ T10] [ 1183.783966][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1183.783966][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.783966][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.783966][ T10] ipv6_find_idev+0x102/0x170 [ 1183.783966][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.783966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.783966][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.783966][ T10] netlink_unicast+0x449/0x710 [ 1183.783966][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.783966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.783966][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.783966][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.783966][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.783966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.783966][ T10] [ 1183.785705][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1183.786001][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1183.786001][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.786001][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.786001][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.786001][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.786001][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.786001][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.786001][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.786001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.786001][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.786001][ T10] netlink_unicast+0x449/0x710 [ 1183.786001][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.786001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.786001][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.786001][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.786001][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.786001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.786001][ T10] [ 1183.788052][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1183.788052][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.788052][ T10] ipv6_find_idev+0x102/0x170 [ 1183.788052][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.788052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.788052][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.788052][ T10] netlink_unicast+0x449/0x710 [ 1183.788052][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.788052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.788052][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.788052][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.788052][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.788052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.788052][ T10] [ 1183.789655][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1183.789655][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.789655][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.789655][ T10] ipv6_find_idev+0x102/0x170 [ 1183.789655][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.789655][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.789655][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.789655][ T10] netlink_unicast+0x449/0x710 [ 1183.789655][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.789655][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.789655][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.789655][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.789655][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.789655][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.789655][ T10] [ 1183.791356][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1183.791625][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1183.791625][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.791625][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.791625][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.791625][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.791625][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.791625][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.791625][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.791625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.791625][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.791625][ T10] netlink_unicast+0x449/0x710 [ 1183.791625][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.791625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.791625][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.791625][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.791625][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.791625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.791625][ T10] [ 1183.793649][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1183.793649][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.793649][ T10] ipv6_find_idev+0x102/0x170 [ 1183.793649][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.793649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.793649][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.793649][ T10] netlink_unicast+0x449/0x710 [ 1183.793649][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.793649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.793649][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.793649][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.793649][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.793649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.793649][ T10] [ 1183.795203][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1183.795203][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.795203][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.795203][ T10] ipv6_find_idev+0x102/0x170 [ 1183.795203][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.795203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.795203][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.795203][ T10] netlink_unicast+0x449/0x710 [ 1183.795203][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.795203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.795203][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.795203][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.795203][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.795203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.795203][ T10] [ 1183.796898][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1183.797165][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1183.797165][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.797165][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.797165][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.797165][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.797165][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.797165][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.797165][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.797165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.797165][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.797165][ T10] netlink_unicast+0x449/0x710 [ 1183.797165][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.797165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.797165][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.797165][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.797165][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.797165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.797165][ T10] [ 1183.799185][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1183.799185][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.799185][ T10] ipv6_find_idev+0x102/0x170 [ 1183.799185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.799185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.799185][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.799185][ T10] netlink_unicast+0x449/0x710 [ 1183.799185][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.799185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.799185][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.799185][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.799185][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.799185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.799185][ T10] [ 1183.800744][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1183.800744][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.800744][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.800744][ T10] ipv6_find_idev+0x102/0x170 [ 1183.800744][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.800744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.800744][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.800744][ T10] netlink_unicast+0x449/0x710 [ 1183.800744][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.800744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.800744][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.800744][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.800744][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.800744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.800744][ T10] [ 1183.802432][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1183.803166][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1183.803166][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.803166][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.803166][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.803166][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.803166][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.803166][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.803166][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.803166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.803166][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.803166][ T10] netlink_unicast+0x449/0x710 [ 1183.803166][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.803166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.803166][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.803166][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.803166][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.803166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.803166][ T10] [ 1183.805182][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1183.805182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.805182][ T10] ipv6_find_idev+0x102/0x170 [ 1183.805182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.805182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.805182][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.805182][ T10] netlink_unicast+0x449/0x710 [ 1183.805182][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.805182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.805182][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.805182][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.805182][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.805182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.805182][ T10] [ 1183.806736][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1183.806736][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.806736][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.806736][ T10] ipv6_find_idev+0x102/0x170 [ 1183.806736][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.806736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.806736][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.806736][ T10] netlink_unicast+0x449/0x710 [ 1183.806736][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.806736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.806736][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.806736][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.806736][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.806736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.806736][ T10] [ 1183.808547][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1183.808870][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1183.808870][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.808870][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.808870][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.808870][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.808870][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.808870][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.808870][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.808870][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.808870][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.808870][ T10] netlink_unicast+0x449/0x710 [ 1183.808870][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.808870][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.808870][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.808870][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.808870][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.808870][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.808870][ T10] [ 1183.811170][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1183.811170][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.811170][ T10] ipv6_find_idev+0x102/0x170 [ 1183.811170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.811170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.811170][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.811170][ T10] netlink_unicast+0x449/0x710 [ 1183.811170][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.811170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.811170][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.811170][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.811170][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.811170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.811170][ T10] [ 1183.812868][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1183.812868][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.812868][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.812868][ T10] ipv6_find_idev+0x102/0x170 [ 1183.812868][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.812868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.812868][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.812868][ T10] netlink_unicast+0x449/0x710 [ 1183.812868][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.812868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.812868][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.812868][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.812868][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.812868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.812868][ T10] [ 1183.814788][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1183.815052][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1183.815052][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.815052][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.815052][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.815052][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.815052][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.815052][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.815052][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.815052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.815052][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.815052][ T10] netlink_unicast+0x449/0x710 [ 1183.815052][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.815052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.815052][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.815052][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.815052][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.815052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.815052][ T10] [ 1183.817197][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1183.817197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.817197][ T10] ipv6_find_idev+0x102/0x170 [ 1183.817197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.817197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.817197][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.817197][ T10] netlink_unicast+0x449/0x710 [ 1183.817197][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.817197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.817197][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.817197][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.817197][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.817197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.817197][ T10] [ 1183.818992][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1183.818992][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.818992][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.818992][ T10] ipv6_find_idev+0x102/0x170 [ 1183.818992][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.818992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.818992][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.818992][ T10] netlink_unicast+0x449/0x710 [ 1183.818992][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.818992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.818992][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.818992][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.818992][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.818992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.818992][ T10] [ 1183.820800][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1183.821071][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1183.821071][ T10] netdev_get_by_index+0x5e/0x80 [ 1183.821071][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1183.821071][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1183.821071][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1183.821071][ T10] ipv6_add_addr+0x411/0x2000 [ 1183.821071][ T10] inet6_addr_add+0x30e/0xa40 [ 1183.821071][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1183.821071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.821071][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.821071][ T10] netlink_unicast+0x449/0x710 [ 1183.821071][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.821071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.821071][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.821071][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.821071][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.821071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.821071][ T10] [ 1183.823295][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1183.823295][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1183.823295][ T10] ipv6_find_idev+0x102/0x170 [ 1183.823295][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.823295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.823295][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.823295][ T10] netlink_unicast+0x449/0x710 [ 1183.823295][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.823295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.823295][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.823295][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.823295][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.823295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.823295][ T10] [ 1183.825069][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1183.825069][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1183.825069][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1183.825069][ T10] ipv6_find_idev+0x102/0x170 [ 1183.825069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1183.825069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1183.825069][ T10] netlink_rcv_skb+0x130/0x360 [ 1183.825069][ T10] netlink_unicast+0x449/0x710 [ 1183.825069][ T10] netlink_sendmsg+0x723/0xbe0 [ 1183.825069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1183.825069][ T10] ___sys_sendmsg+0xee/0x170 [ 1183.825069][ T10] __sys_sendmsg+0xcd/0x170 [ 1183.825069][ T10] do_syscall_64+0xc6/0x1e0 [ 1183.825069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1183.825069][ T10] [ 1194.051662][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1194.052038][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1194.052038][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.052038][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.052038][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.052038][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.052038][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.052038][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.052038][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.052038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.052038][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.052038][ T10] netlink_unicast+0x449/0x710 [ 1194.052038][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.052038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.052038][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.052038][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.052038][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.052038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.052038][ T10] [ 1194.054090][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1194.054090][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.054090][ T10] ipv6_find_idev+0x102/0x170 [ 1194.054090][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.054090][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.054090][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.054090][ T10] netlink_unicast+0x449/0x710 [ 1194.054090][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.054090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.054090][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.054090][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.054090][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.054090][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.054090][ T10] [ 1194.055664][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1194.055664][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.055664][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.055664][ T10] ipv6_find_idev+0x102/0x170 [ 1194.055664][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.055664][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.055664][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.055664][ T10] netlink_unicast+0x449/0x710 [ 1194.055664][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.055664][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.055664][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.055664][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.055664][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.055664][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.055664][ T10] [ 1194.057393][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1194.057683][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1194.057683][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.057683][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.057683][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.057683][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.057683][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.057683][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.057683][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.057683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.057683][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.057683][ T10] netlink_unicast+0x449/0x710 [ 1194.057683][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.057683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.057683][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.057683][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.057683][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.057683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.057683][ T10] [ 1194.059691][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1194.059691][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.059691][ T10] ipv6_find_idev+0x102/0x170 [ 1194.059691][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.059691][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.059691][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.059691][ T10] netlink_unicast+0x449/0x710 [ 1194.059691][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.059691][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.059691][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.059691][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.059691][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.059691][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.059691][ T10] [ 1194.061241][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1194.061241][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.061241][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.061241][ T10] ipv6_find_idev+0x102/0x170 [ 1194.061241][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.061241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.061241][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.061241][ T10] netlink_unicast+0x449/0x710 [ 1194.061241][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.061241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.061241][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.061241][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.061241][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.061241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.061241][ T10] [ 1194.063012][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1194.063286][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1194.063286][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.063286][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.063286][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.063286][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.063286][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.063286][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.063286][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.063286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.063286][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.063286][ T10] netlink_unicast+0x449/0x710 [ 1194.063286][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.063286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.063286][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.063286][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.063286][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.063286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.063286][ T10] [ 1194.065312][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1194.065312][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.065312][ T10] ipv6_find_idev+0x102/0x170 [ 1194.065312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.065312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.065312][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.065312][ T10] netlink_unicast+0x449/0x710 [ 1194.065312][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.065312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.065312][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.065312][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.065312][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.065312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.065312][ T10] [ 1194.066859][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1194.066859][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.066859][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.066859][ T10] ipv6_find_idev+0x102/0x170 [ 1194.066859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.066859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.066859][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.066859][ T10] netlink_unicast+0x449/0x710 [ 1194.066859][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.066859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.066859][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.066859][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.066859][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.066859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.066859][ T10] [ 1194.068562][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1194.068868][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1194.068868][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.068868][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.068868][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.068868][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.068868][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.068868][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.068868][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.068868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.068868][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.068868][ T10] netlink_unicast+0x449/0x710 [ 1194.068868][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.068868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.068868][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.068868][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.068868][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.068868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.068868][ T10] [ 1194.071039][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1194.071039][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.071039][ T10] ipv6_find_idev+0x102/0x170 [ 1194.071039][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.071039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.071039][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.071039][ T10] netlink_unicast+0x449/0x710 [ 1194.071039][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.071039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.071039][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.071039][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.071039][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.071039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.071039][ T10] [ 1194.072592][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1194.072592][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.072592][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.072592][ T10] ipv6_find_idev+0x102/0x170 [ 1194.072592][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.072592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.072592][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.072592][ T10] netlink_unicast+0x449/0x710 [ 1194.072592][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.072592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.072592][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.072592][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.072592][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.072592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.072592][ T10] [ 1194.074333][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1194.074613][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1194.074613][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.074613][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.074613][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.074613][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.074613][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.074613][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.074613][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.074613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.074613][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.074613][ T10] netlink_unicast+0x449/0x710 [ 1194.074613][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.074613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.074613][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.074613][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.074613][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.074613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.074613][ T10] [ 1194.076819][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1194.076819][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.076819][ T10] ipv6_find_idev+0x102/0x170 [ 1194.076819][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.076819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.076819][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.076819][ T10] netlink_unicast+0x449/0x710 [ 1194.076819][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.076819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.076819][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.076819][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.076819][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.076819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.076819][ T10] [ 1194.078542][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1194.078542][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.078542][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.078542][ T10] ipv6_find_idev+0x102/0x170 [ 1194.078542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.078542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.078542][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.078542][ T10] netlink_unicast+0x449/0x710 [ 1194.078542][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.078542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.078542][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.078542][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.078542][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.078542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.078542][ T10] [ 1194.080455][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1194.081312][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1194.081312][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.081312][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.081312][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.081312][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.081312][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.081312][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.081312][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.081312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.081312][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.081312][ T10] netlink_unicast+0x449/0x710 [ 1194.081312][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.081312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.081312][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.081312][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.081312][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.081312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.081312][ T10] [ 1194.083336][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1194.083336][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.083336][ T10] ipv6_find_idev+0x102/0x170 [ 1194.083336][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.083336][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.083336][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.083336][ T10] netlink_unicast+0x449/0x710 [ 1194.083336][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.083336][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.083336][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.083336][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.083336][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.083336][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.083336][ T10] [ 1194.084897][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1194.084897][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.084897][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.084897][ T10] ipv6_find_idev+0x102/0x170 [ 1194.084897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.084897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.084897][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.084897][ T10] netlink_unicast+0x449/0x710 [ 1194.084897][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.084897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.084897][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.084897][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.084897][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.084897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.084897][ T10] [ 1194.086877][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1194.087226][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1194.087226][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.087226][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.087226][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.087226][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.087226][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.087226][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.087226][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.087226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.087226][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.087226][ T10] netlink_unicast+0x449/0x710 [ 1194.087226][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.087226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.087226][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.087226][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.087226][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.087226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.087226][ T10] [ 1194.089367][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1194.089367][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.089367][ T10] ipv6_find_idev+0x102/0x170 [ 1194.089367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.089367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.089367][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.089367][ T10] netlink_unicast+0x449/0x710 [ 1194.089367][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.089367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.089367][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.089367][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.089367][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.089367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.089367][ T10] [ 1194.091118][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1194.091118][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.091118][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.091118][ T10] ipv6_find_idev+0x102/0x170 [ 1194.091118][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.091118][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.091118][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.091118][ T10] netlink_unicast+0x449/0x710 [ 1194.091118][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.091118][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.091118][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.091118][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.091118][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.091118][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.091118][ T10] [ 1194.093063][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1194.093347][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1194.093347][ T10] netdev_get_by_index+0x5e/0x80 [ 1194.093347][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1194.093347][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1194.093347][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1194.093347][ T10] ipv6_add_addr+0x411/0x2000 [ 1194.093347][ T10] inet6_addr_add+0x30e/0xa40 [ 1194.093347][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1194.093347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.093347][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.093347][ T10] netlink_unicast+0x449/0x710 [ 1194.093347][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.093347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.093347][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.093347][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.093347][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.093347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.093347][ T10] [ 1194.095665][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1194.095665][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1194.095665][ T10] ipv6_find_idev+0x102/0x170 [ 1194.095665][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.095665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.095665][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.095665][ T10] netlink_unicast+0x449/0x710 [ 1194.095665][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.095665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.095665][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.095665][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.095665][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.095665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.095665][ T10] [ 1194.097390][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1194.097390][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1194.097390][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1194.097390][ T10] ipv6_find_idev+0x102/0x170 [ 1194.097390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1194.097390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1194.097390][ T10] netlink_rcv_skb+0x130/0x360 [ 1194.097390][ T10] netlink_unicast+0x449/0x710 [ 1194.097390][ T10] netlink_sendmsg+0x723/0xbe0 [ 1194.097390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1194.097390][ T10] ___sys_sendmsg+0xee/0x170 [ 1194.097390][ T10] __sys_sendmsg+0xcd/0x170 [ 1194.097390][ T10] do_syscall_64+0xc6/0x1e0 [ 1194.097390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1194.097390][ T10] [ 1204.165665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1204.166110][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1204.166110][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.166110][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.166110][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.166110][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.166110][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.166110][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.166110][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.166110][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.166110][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.166110][ T10] netlink_unicast+0x449/0x710 [ 1204.166110][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.166110][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.166110][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.166110][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.166110][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.166110][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.166110][ T10] [ 1204.168430][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1204.168430][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.168430][ T10] ipv6_find_idev+0x102/0x170 [ 1204.168430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.168430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.168430][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.168430][ T10] netlink_unicast+0x449/0x710 [ 1204.168430][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.168430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.168430][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.168430][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.168430][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.168430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.168430][ T10] [ 1204.170189][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1204.170189][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.170189][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.170189][ T10] ipv6_find_idev+0x102/0x170 [ 1204.170189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.170189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.170189][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.170189][ T10] netlink_unicast+0x449/0x710 [ 1204.170189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.170189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.170189][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.170189][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.170189][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.170189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.170189][ T10] [ 1204.172079][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1204.172372][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1204.172372][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.172372][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.172372][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.172372][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.172372][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.172372][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.172372][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.172372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.172372][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.172372][ T10] netlink_unicast+0x449/0x710 [ 1204.172372][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.172372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.172372][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.172372][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.172372][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.172372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.172372][ T10] [ 1204.174631][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1204.174631][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.174631][ T10] ipv6_find_idev+0x102/0x170 [ 1204.174631][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.174631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.174631][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.174631][ T10] netlink_unicast+0x449/0x710 [ 1204.174631][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.174631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.174631][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.174631][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.174631][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.174631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.174631][ T10] [ 1204.176345][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1204.176345][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.176345][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.176345][ T10] ipv6_find_idev+0x102/0x170 [ 1204.176345][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.176345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.176345][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.176345][ T10] netlink_unicast+0x449/0x710 [ 1204.176345][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.176345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.176345][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.176345][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.176345][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.176345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.176345][ T10] [ 1204.178206][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1204.178505][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1204.178505][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.178505][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.178505][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.178505][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.178505][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.178505][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.178505][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.178505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.178505][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.178505][ T10] netlink_unicast+0x449/0x710 [ 1204.178505][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.178505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.178505][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.178505][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.178505][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.178505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.178505][ T10] [ 1204.180732][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1204.180732][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.180732][ T10] ipv6_find_idev+0x102/0x170 [ 1204.180732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.180732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.180732][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.180732][ T10] netlink_unicast+0x449/0x710 [ 1204.180732][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.180732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.180732][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.180732][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.180732][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.180732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.180732][ T10] [ 1204.182474][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1204.182474][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.182474][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.182474][ T10] ipv6_find_idev+0x102/0x170 [ 1204.182474][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.182474][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.182474][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.182474][ T10] netlink_unicast+0x449/0x710 [ 1204.182474][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.182474][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.182474][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.182474][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.182474][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.182474][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.182474][ T10] [ 1204.184502][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1204.185247][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1204.185247][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.185247][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.185247][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.185247][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.185247][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.185247][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.185247][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.185247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.185247][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.185247][ T10] netlink_unicast+0x449/0x710 [ 1204.185247][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.185247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.185247][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.185247][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.185247][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.185247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.185247][ T10] [ 1204.187520][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1204.187520][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.187520][ T10] ipv6_find_idev+0x102/0x170 [ 1204.187520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.187520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.187520][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.187520][ T10] netlink_unicast+0x449/0x710 [ 1204.187520][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.187520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.187520][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.187520][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.187520][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.187520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.187520][ T10] [ 1204.189384][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1204.189384][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.189384][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.189384][ T10] ipv6_find_idev+0x102/0x170 [ 1204.189384][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.189384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.189384][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.189384][ T10] netlink_unicast+0x449/0x710 [ 1204.189384][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.189384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.189384][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.189384][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.189384][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.189384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.189384][ T10] [ 1204.191359][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1204.191661][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1204.191661][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.191661][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.191661][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.191661][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.191661][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.191661][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.191661][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.191661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.191661][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.191661][ T10] netlink_unicast+0x449/0x710 [ 1204.191661][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.191661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.191661][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.191661][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.191661][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.191661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.191661][ T10] [ 1204.194000][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1204.194000][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.194000][ T10] ipv6_find_idev+0x102/0x170 [ 1204.194000][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.194000][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.194000][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.194000][ T10] netlink_unicast+0x449/0x710 [ 1204.194000][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.194000][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.194000][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.194000][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.194000][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.194000][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.194000][ T10] [ 1204.195933][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1204.195933][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.195933][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.195933][ T10] ipv6_find_idev+0x102/0x170 [ 1204.195933][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.195933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.195933][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.195933][ T10] netlink_unicast+0x449/0x710 [ 1204.195933][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.195933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.195933][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.195933][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.195933][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.195933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.195933][ T10] [ 1204.198158][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1204.198456][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1204.198456][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.198456][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.198456][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.198456][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.198456][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.198456][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.198456][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.198456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.198456][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.198456][ T10] netlink_unicast+0x449/0x710 [ 1204.198456][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.198456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.198456][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.198456][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.198456][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.198456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.198456][ T10] [ 1204.200963][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1204.200963][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.200963][ T10] ipv6_find_idev+0x102/0x170 [ 1204.200963][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.200963][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.200963][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.200963][ T10] netlink_unicast+0x449/0x710 [ 1204.200963][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.200963][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.200963][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.200963][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.200963][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.200963][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.200963][ T10] [ 1204.202941][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1204.202941][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.202941][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.202941][ T10] ipv6_find_idev+0x102/0x170 [ 1204.202941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.202941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.202941][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.202941][ T10] netlink_unicast+0x449/0x710 [ 1204.202941][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.202941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.202941][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.202941][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.202941][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.202941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.202941][ T10] [ 1204.205138][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1204.205435][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1204.205435][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.205435][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.205435][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.205435][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.205435][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.205435][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.205435][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.205435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.205435][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.205435][ T10] netlink_unicast+0x449/0x710 [ 1204.205435][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.205435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.205435][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.205435][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.205435][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.205435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.205435][ T10] [ 1204.207751][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1204.207751][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.207751][ T10] ipv6_find_idev+0x102/0x170 [ 1204.207751][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.207751][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.207751][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.207751][ T10] netlink_unicast+0x449/0x710 [ 1204.207751][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.207751][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.207751][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.207751][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.207751][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.207751][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.207751][ T10] [ 1204.209592][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1204.209592][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.209592][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.209592][ T10] ipv6_find_idev+0x102/0x170 [ 1204.209592][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.209592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.209592][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.209592][ T10] netlink_unicast+0x449/0x710 [ 1204.209592][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.209592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.209592][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.209592][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.209592][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.209592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.209592][ T10] [ 1204.211710][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1204.212005][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1204.212005][ T10] netdev_get_by_index+0x5e/0x80 [ 1204.212005][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1204.212005][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1204.212005][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1204.212005][ T10] ipv6_add_addr+0x411/0x2000 [ 1204.212005][ T10] inet6_addr_add+0x30e/0xa40 [ 1204.212005][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1204.212005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.212005][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.212005][ T10] netlink_unicast+0x449/0x710 [ 1204.212005][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.212005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.212005][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.212005][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.212005][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.212005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.212005][ T10] [ 1204.214580][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1204.214580][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1204.214580][ T10] ipv6_find_idev+0x102/0x170 [ 1204.214580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.214580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.214580][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.214580][ T10] netlink_unicast+0x449/0x710 [ 1204.214580][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.214580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.214580][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.214580][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.214580][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.214580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.214580][ T10] [ 1204.216450][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1204.216450][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1204.216450][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1204.216450][ T10] ipv6_find_idev+0x102/0x170 [ 1204.216450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1204.216450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1204.216450][ T10] netlink_rcv_skb+0x130/0x360 [ 1204.216450][ T10] netlink_unicast+0x449/0x710 [ 1204.216450][ T10] netlink_sendmsg+0x723/0xbe0 [ 1204.216450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1204.216450][ T10] ___sys_sendmsg+0xee/0x170 [ 1204.216450][ T10] __sys_sendmsg+0xcd/0x170 [ 1204.216450][ T10] do_syscall_64+0xc6/0x1e0 [ 1204.216450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1204.216450][ T10] [ 1214.379695][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1214.380178][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1214.380178][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.380178][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.380178][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.380178][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.380178][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.380178][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.380178][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.380178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.380178][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.380178][ T10] netlink_unicast+0x449/0x710 [ 1214.380178][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.380178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.380178][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.380178][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.380178][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.380178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.380178][ T10] [ 1214.382486][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1214.382486][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.382486][ T10] ipv6_find_idev+0x102/0x170 [ 1214.382486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.382486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.382486][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.382486][ T10] netlink_unicast+0x449/0x710 [ 1214.382486][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.382486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.382486][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.382486][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.382486][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.382486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.382486][ T10] [ 1214.384243][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1214.384243][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.384243][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.384243][ T10] ipv6_find_idev+0x102/0x170 [ 1214.384243][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.384243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.384243][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.384243][ T10] netlink_unicast+0x449/0x710 [ 1214.384243][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.384243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.384243][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.384243][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.384243][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.384243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.384243][ T10] [ 1214.386181][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1214.386484][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1214.386484][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.386484][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.386484][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.386484][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.386484][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.386484][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.386484][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.386484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.386484][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.386484][ T10] netlink_unicast+0x449/0x710 [ 1214.386484][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.386484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.386484][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.386484][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.386484][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.386484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.386484][ T10] [ 1214.388768][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1214.388768][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.388768][ T10] ipv6_find_idev+0x102/0x170 [ 1214.388768][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.388768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.388768][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.388768][ T10] netlink_unicast+0x449/0x710 [ 1214.388768][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.388768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.388768][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.388768][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.388768][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.388768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.388768][ T10] [ 1214.390513][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1214.390513][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.390513][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.390513][ T10] ipv6_find_idev+0x102/0x170 [ 1214.390513][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.390513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.390513][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.390513][ T10] netlink_unicast+0x449/0x710 [ 1214.390513][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.390513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.390513][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.390513][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.390513][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.390513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.390513][ T10] [ 1214.392395][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1214.392709][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1214.392709][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.392709][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.392709][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.392709][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.392709][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.392709][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.392709][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.392709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.392709][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.392709][ T10] netlink_unicast+0x449/0x710 [ 1214.392709][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.392709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.392709][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.392709][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.392709][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.392709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.392709][ T10] [ 1214.394973][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1214.394973][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.394973][ T10] ipv6_find_idev+0x102/0x170 [ 1214.394973][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.394973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.394973][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.394973][ T10] netlink_unicast+0x449/0x710 [ 1214.394973][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.394973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.394973][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.394973][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.394973][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.394973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.394973][ T10] [ 1214.396671][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1214.396671][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.396671][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.396671][ T10] ipv6_find_idev+0x102/0x170 [ 1214.396671][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.396671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.396671][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.396671][ T10] netlink_unicast+0x449/0x710 [ 1214.396671][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.396671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.396671][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.396671][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.396671][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.396671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.396671][ T10] [ 1214.398509][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1214.398864][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1214.398864][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.398864][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.398864][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.398864][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.398864][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.398864][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.398864][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.398864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.398864][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.398864][ T10] netlink_unicast+0x449/0x710 [ 1214.398864][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.398864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.398864][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.398864][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.398864][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.398864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.398864][ T10] [ 1214.401099][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1214.401099][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.401099][ T10] ipv6_find_idev+0x102/0x170 [ 1214.401099][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.401099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.401099][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.401099][ T10] netlink_unicast+0x449/0x710 [ 1214.401099][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.401099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.401099][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.401099][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.401099][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.401099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.401099][ T10] [ 1214.402811][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1214.402811][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.402811][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.402811][ T10] ipv6_find_idev+0x102/0x170 [ 1214.402811][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.402811][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.402811][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.402811][ T10] netlink_unicast+0x449/0x710 [ 1214.402811][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.402811][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.402811][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.402811][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.402811][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.402811][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.402811][ T10] [ 1214.404721][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1214.405012][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1214.405012][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.405012][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.405012][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.405012][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.405012][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.405012][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.405012][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.405012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.405012][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.405012][ T10] netlink_unicast+0x449/0x710 [ 1214.405012][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.405012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.405012][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.405012][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.405012][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.405012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.405012][ T10] [ 1214.407200][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1214.407200][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.407200][ T10] ipv6_find_idev+0x102/0x170 [ 1214.407200][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.407200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.407200][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.407200][ T10] netlink_unicast+0x449/0x710 [ 1214.407200][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.407200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.407200][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.407200][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.407200][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.407200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.407200][ T10] [ 1214.408883][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1214.408883][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.408883][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.408883][ T10] ipv6_find_idev+0x102/0x170 [ 1214.408883][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.408883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.408883][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.408883][ T10] netlink_unicast+0x449/0x710 [ 1214.408883][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.408883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.408883][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.408883][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.408883][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.408883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.408883][ T10] [ 1214.410963][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1214.411249][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1214.411249][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.411249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.411249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.411249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.411249][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.411249][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.411249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.411249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.411249][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.411249][ T10] netlink_unicast+0x449/0x710 [ 1214.411249][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.411249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.411249][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.411249][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.411249][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.411249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.411249][ T10] [ 1214.413726][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1214.413726][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.413726][ T10] ipv6_find_idev+0x102/0x170 [ 1214.413726][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.413726][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.413726][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.413726][ T10] netlink_unicast+0x449/0x710 [ 1214.413726][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.413726][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.413726][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.413726][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.413726][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.413726][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.413726][ T10] [ 1214.415623][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1214.415623][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.415623][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.415623][ T10] ipv6_find_idev+0x102/0x170 [ 1214.415623][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.415623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.415623][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.415623][ T10] netlink_unicast+0x449/0x710 [ 1214.415623][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.415623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.415623][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.415623][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.415623][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.415623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.415623][ T10] [ 1214.417739][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1214.418024][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1214.418024][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.418024][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.418024][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.418024][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.418024][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.418024][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.418024][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.418024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.418024][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.418024][ T10] netlink_unicast+0x449/0x710 [ 1214.418024][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.418024][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.418024][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.418024][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.418024][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.418024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.418024][ T10] [ 1214.420473][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1214.420473][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.420473][ T10] ipv6_find_idev+0x102/0x170 [ 1214.420473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.420473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.420473][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.420473][ T10] netlink_unicast+0x449/0x710 [ 1214.420473][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.420473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.420473][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.420473][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.420473][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.420473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.420473][ T10] [ 1214.422387][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1214.422387][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.422387][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.422387][ T10] ipv6_find_idev+0x102/0x170 [ 1214.422387][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.422387][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.422387][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.422387][ T10] netlink_unicast+0x449/0x710 [ 1214.422387][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.422387][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.422387][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.422387][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.422387][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.422387][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.422387][ T10] [ 1214.424412][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1214.424751][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1214.424751][ T10] netdev_get_by_index+0x5e/0x80 [ 1214.424751][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1214.424751][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1214.424751][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1214.424751][ T10] ipv6_add_addr+0x411/0x2000 [ 1214.424751][ T10] inet6_addr_add+0x30e/0xa40 [ 1214.424751][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1214.424751][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.424751][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.424751][ T10] netlink_unicast+0x449/0x710 [ 1214.424751][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.424751][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.424751][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.424751][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.424751][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.424751][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.424751][ T10] [ 1214.427086][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1214.427086][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1214.427086][ T10] ipv6_find_idev+0x102/0x170 [ 1214.427086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.427086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.427086][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.427086][ T10] netlink_unicast+0x449/0x710 [ 1214.427086][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.427086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.427086][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.427086][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.427086][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.427086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.427086][ T10] [ 1214.428968][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1214.428968][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1214.428968][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1214.428968][ T10] ipv6_find_idev+0x102/0x170 [ 1214.428968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1214.428968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1214.428968][ T10] netlink_rcv_skb+0x130/0x360 [ 1214.428968][ T10] netlink_unicast+0x449/0x710 [ 1214.428968][ T10] netlink_sendmsg+0x723/0xbe0 [ 1214.428968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1214.428968][ T10] ___sys_sendmsg+0xee/0x170 [ 1214.428968][ T10] __sys_sendmsg+0xcd/0x170 [ 1214.428968][ T10] do_syscall_64+0xc6/0x1e0 [ 1214.428968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1214.428968][ T10] [ 1224.467671][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1224.468158][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1224.468158][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.468158][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.468158][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.468158][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.468158][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.468158][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.468158][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.468158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.468158][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.468158][ T10] netlink_unicast+0x449/0x710 [ 1224.468158][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.468158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.468158][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.468158][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.468158][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.468158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.468158][ T10] [ 1224.470492][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1224.470492][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.470492][ T10] ipv6_find_idev+0x102/0x170 [ 1224.470492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.470492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.470492][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.470492][ T10] netlink_unicast+0x449/0x710 [ 1224.470492][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.470492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.470492][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.470492][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.470492][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.470492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.470492][ T10] [ 1224.472246][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1224.472246][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.472246][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.472246][ T10] ipv6_find_idev+0x102/0x170 [ 1224.472246][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.472246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.472246][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.472246][ T10] netlink_unicast+0x449/0x710 [ 1224.472246][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.472246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.472246][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.472246][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.472246][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.472246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.472246][ T10] [ 1224.474183][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1224.474493][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1224.474493][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.474493][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.474493][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.474493][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.474493][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.474493][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.474493][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.474493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.474493][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.474493][ T10] netlink_unicast+0x449/0x710 [ 1224.474493][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.474493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.474493][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.474493][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.474493][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.474493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.474493][ T10] [ 1224.476798][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1224.476798][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.476798][ T10] ipv6_find_idev+0x102/0x170 [ 1224.476798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.476798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.476798][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.476798][ T10] netlink_unicast+0x449/0x710 [ 1224.476798][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.476798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.476798][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.476798][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.476798][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.476798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.476798][ T10] [ 1224.478588][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1224.478588][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.478588][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.478588][ T10] ipv6_find_idev+0x102/0x170 [ 1224.478588][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.478588][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.478588][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.478588][ T10] netlink_unicast+0x449/0x710 [ 1224.478588][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.478588][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.478588][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.478588][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.478588][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.478588][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.478588][ T10] [ 1224.480526][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1224.480838][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1224.480838][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.480838][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.480838][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.480838][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.480838][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.480838][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.480838][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.480838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.480838][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.480838][ T10] netlink_unicast+0x449/0x710 [ 1224.480838][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.480838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.480838][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.480838][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.480838][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.480838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.480838][ T10] [ 1224.483101][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1224.483101][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.483101][ T10] ipv6_find_idev+0x102/0x170 [ 1224.483101][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.483101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.483101][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.483101][ T10] netlink_unicast+0x449/0x710 [ 1224.483101][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.483101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.483101][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.483101][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.483101][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.483101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.483101][ T10] [ 1224.484846][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1224.484846][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.484846][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.484846][ T10] ipv6_find_idev+0x102/0x170 [ 1224.484846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.484846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.484846][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.484846][ T10] netlink_unicast+0x449/0x710 [ 1224.484846][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.484846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.484846][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.484846][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.484846][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.484846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.484846][ T10] [ 1224.486762][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1224.487068][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1224.487068][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.487068][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.487068][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.487068][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.487068][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.487068][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.487068][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.487068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.487068][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.487068][ T10] netlink_unicast+0x449/0x710 [ 1224.487068][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.487068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.487068][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.487068][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.487068][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.487068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.487068][ T10] [ 1224.489319][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1224.489319][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.489319][ T10] ipv6_find_idev+0x102/0x170 [ 1224.489319][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.489319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.489319][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.489319][ T10] netlink_unicast+0x449/0x710 [ 1224.489319][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.489319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.489319][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.489319][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.489319][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.489319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.489319][ T10] [ 1224.491047][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1224.491047][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.491047][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.491047][ T10] ipv6_find_idev+0x102/0x170 [ 1224.491047][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.491047][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.491047][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.491047][ T10] netlink_unicast+0x449/0x710 [ 1224.491047][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.491047][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.491047][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.491047][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.491047][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.491047][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.491047][ T10] [ 1224.493333][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1224.493983][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1224.493983][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.493983][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.493983][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.493983][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.493983][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.493983][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.493983][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.493983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.493983][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.493983][ T10] netlink_unicast+0x449/0x710 [ 1224.493983][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.493983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.493983][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.493983][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.493983][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.493983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.493983][ T10] [ 1224.496237][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1224.496237][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.496237][ T10] ipv6_find_idev+0x102/0x170 [ 1224.496237][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.496237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.496237][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.496237][ T10] netlink_unicast+0x449/0x710 [ 1224.496237][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.496237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.496237][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.496237][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.496237][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.496237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.496237][ T10] [ 1224.497982][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1224.497982][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.497982][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.497982][ T10] ipv6_find_idev+0x102/0x170 [ 1224.497982][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.497982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.497982][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.497982][ T10] netlink_unicast+0x449/0x710 [ 1224.497982][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.497982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.497982][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.497982][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.497982][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.497982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.497982][ T10] [ 1224.499890][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1224.500187][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1224.500187][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.500187][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.500187][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.500187][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.500187][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.500187][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.500187][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.500187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.500187][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.500187][ T10] netlink_unicast+0x449/0x710 [ 1224.500187][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.500187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.500187][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.500187][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.500187][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.500187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.500187][ T10] [ 1224.502449][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1224.502449][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.502449][ T10] ipv6_find_idev+0x102/0x170 [ 1224.502449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.502449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.502449][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.502449][ T10] netlink_unicast+0x449/0x710 [ 1224.502449][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.502449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.502449][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.502449][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.502449][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.502449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.502449][ T10] [ 1224.504273][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1224.504273][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.504273][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.504273][ T10] ipv6_find_idev+0x102/0x170 [ 1224.504273][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.504273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.504273][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.504273][ T10] netlink_unicast+0x449/0x710 [ 1224.504273][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.504273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.504273][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.504273][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.504273][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.504273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.504273][ T10] [ 1224.506468][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1224.506819][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1224.506819][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.506819][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.506819][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.506819][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.506819][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.506819][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.506819][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.506819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.506819][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.506819][ T10] netlink_unicast+0x449/0x710 [ 1224.506819][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.506819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.506819][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.506819][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.506819][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.506819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.506819][ T10] [ 1224.509266][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1224.509266][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.509266][ T10] ipv6_find_idev+0x102/0x170 [ 1224.509266][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.509266][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.509266][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.509266][ T10] netlink_unicast+0x449/0x710 [ 1224.509266][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.509266][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.509266][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.509266][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.509266][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.509266][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.509266][ T10] [ 1224.511069][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1224.511069][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.511069][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.511069][ T10] ipv6_find_idev+0x102/0x170 [ 1224.511069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.511069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.511069][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.511069][ T10] netlink_unicast+0x449/0x710 [ 1224.511069][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.511069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.511069][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.511069][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.511069][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.511069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.511069][ T10] [ 1224.513265][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1224.513604][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1224.513604][ T10] netdev_get_by_index+0x5e/0x80 [ 1224.513604][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1224.513604][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1224.513604][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1224.513604][ T10] ipv6_add_addr+0x411/0x2000 [ 1224.513604][ T10] inet6_addr_add+0x30e/0xa40 [ 1224.513604][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1224.513604][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.513604][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.513604][ T10] netlink_unicast+0x449/0x710 [ 1224.513604][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.513604][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.513604][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.513604][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.513604][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.513604][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.513604][ T10] [ 1224.516059][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1224.516059][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1224.516059][ T10] ipv6_find_idev+0x102/0x170 [ 1224.516059][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.516059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.516059][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.516059][ T10] netlink_unicast+0x449/0x710 [ 1224.516059][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.516059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.516059][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.516059][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.516059][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.516059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.516059][ T10] [ 1224.518028][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1224.518028][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1224.518028][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1224.518028][ T10] ipv6_find_idev+0x102/0x170 [ 1224.518028][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1224.518028][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1224.518028][ T10] netlink_rcv_skb+0x130/0x360 [ 1224.518028][ T10] netlink_unicast+0x449/0x710 [ 1224.518028][ T10] netlink_sendmsg+0x723/0xbe0 [ 1224.518028][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1224.518028][ T10] ___sys_sendmsg+0xee/0x170 [ 1224.518028][ T10] __sys_sendmsg+0xcd/0x170 [ 1224.518028][ T10] do_syscall_64+0xc6/0x1e0 [ 1224.518028][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1224.518028][ T10] [ 1234.563665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1234.564031][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1234.564031][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.564031][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.564031][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.564031][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.564031][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.564031][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.564031][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.564031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.564031][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.564031][ T10] netlink_unicast+0x449/0x710 [ 1234.564031][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.564031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.564031][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.564031][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.564031][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.564031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.564031][ T10] [ 1234.566352][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1234.566352][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.566352][ T10] ipv6_find_idev+0x102/0x170 [ 1234.566352][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.566352][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.566352][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.566352][ T10] netlink_unicast+0x449/0x710 [ 1234.566352][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.566352][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.566352][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.566352][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.566352][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.566352][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.566352][ T10] [ 1234.568109][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1234.568109][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.568109][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.568109][ T10] ipv6_find_idev+0x102/0x170 [ 1234.568109][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.568109][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.568109][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.568109][ T10] netlink_unicast+0x449/0x710 [ 1234.568109][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.568109][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.568109][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.568109][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.568109][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.568109][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.568109][ T10] [ 1234.569987][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1234.570285][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1234.570285][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.570285][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.570285][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.570285][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.570285][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.570285][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.570285][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.570285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.570285][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.570285][ T10] netlink_unicast+0x449/0x710 [ 1234.570285][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.570285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.570285][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.570285][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.570285][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.570285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.570285][ T10] [ 1234.572551][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1234.572551][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.572551][ T10] ipv6_find_idev+0x102/0x170 [ 1234.572551][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.572551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.572551][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.572551][ T10] netlink_unicast+0x449/0x710 [ 1234.572551][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.572551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.572551][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.572551][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.572551][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.572551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.572551][ T10] [ 1234.574327][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1234.574327][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.574327][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.574327][ T10] ipv6_find_idev+0x102/0x170 [ 1234.574327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.574327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.574327][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.574327][ T10] netlink_unicast+0x449/0x710 [ 1234.574327][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.574327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.574327][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.574327][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.574327][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.574327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.574327][ T10] [ 1234.576511][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1234.576837][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1234.576837][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.576837][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.576837][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.576837][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.576837][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.576837][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.576837][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.576837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.576837][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.576837][ T10] netlink_unicast+0x449/0x710 [ 1234.576837][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.576837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.576837][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.576837][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.576837][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.576837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.576837][ T10] [ 1234.579335][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1234.579335][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.579335][ T10] ipv6_find_idev+0x102/0x170 [ 1234.579335][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.579335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.579335][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.579335][ T10] netlink_unicast+0x449/0x710 [ 1234.579335][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.579335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.579335][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.579335][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.579335][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.579335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.579335][ T10] [ 1234.581297][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1234.581297][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.581297][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.581297][ T10] ipv6_find_idev+0x102/0x170 [ 1234.581297][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.581297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.581297][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.581297][ T10] netlink_unicast+0x449/0x710 [ 1234.581297][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.581297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.581297][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.581297][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.581297][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.581297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.581297][ T10] [ 1234.583594][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1234.584354][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1234.584354][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.584354][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.584354][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.584354][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.584354][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.584354][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.584354][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.584354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.584354][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.584354][ T10] netlink_unicast+0x449/0x710 [ 1234.584354][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.584354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.584354][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.584354][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.584354][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.584354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.584354][ T10] [ 1234.586630][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1234.586630][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.586630][ T10] ipv6_find_idev+0x102/0x170 [ 1234.586630][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.586630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.586630][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.586630][ T10] netlink_unicast+0x449/0x710 [ 1234.586630][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.586630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.586630][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.586630][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.586630][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.586630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.586630][ T10] [ 1234.588369][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1234.588369][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.588369][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.588369][ T10] ipv6_find_idev+0x102/0x170 [ 1234.588369][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.588369][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.588369][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.588369][ T10] netlink_unicast+0x449/0x710 [ 1234.588369][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.588369][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.588369][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.588369][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.588369][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.588369][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.588369][ T10] [ 1234.590445][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1234.590798][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1234.590798][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.590798][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.590798][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.590798][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.590798][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.590798][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.590798][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.590798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.590798][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.590798][ T10] netlink_unicast+0x449/0x710 [ 1234.590798][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.590798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.590798][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.590798][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.590798][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.590798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.590798][ T10] [ 1234.593092][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1234.593092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.593092][ T10] ipv6_find_idev+0x102/0x170 [ 1234.593092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.593092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.593092][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.593092][ T10] netlink_unicast+0x449/0x710 [ 1234.593092][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.593092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.593092][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.593092][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.593092][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.593092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.593092][ T10] [ 1234.594860][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1234.594860][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.594860][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.594860][ T10] ipv6_find_idev+0x102/0x170 [ 1234.594860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.594860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.594860][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.594860][ T10] netlink_unicast+0x449/0x710 [ 1234.594860][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.594860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.594860][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.594860][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.594860][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.594860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.594860][ T10] [ 1234.596913][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1234.597207][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1234.597207][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.597207][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.597207][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.597207][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.597207][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.597207][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.597207][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.597207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.597207][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.597207][ T10] netlink_unicast+0x449/0x710 [ 1234.597207][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.597207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.597207][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.597207][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.597207][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.597207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.597207][ T10] [ 1234.599633][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1234.599633][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.599633][ T10] ipv6_find_idev+0x102/0x170 [ 1234.599633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.599633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.599633][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.599633][ T10] netlink_unicast+0x449/0x710 [ 1234.599633][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.599633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.599633][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.599633][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.599633][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.599633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.599633][ T10] [ 1234.601417][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1234.601417][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.601417][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.601417][ T10] ipv6_find_idev+0x102/0x170 [ 1234.601417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.601417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.601417][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.601417][ T10] netlink_unicast+0x449/0x710 [ 1234.601417][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.601417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.601417][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.601417][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.601417][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.601417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.601417][ T10] [ 1234.603542][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1234.603891][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1234.603891][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.603891][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.603891][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.603891][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.603891][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.603891][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.603891][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.603891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.603891][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.603891][ T10] netlink_unicast+0x449/0x710 [ 1234.603891][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.603891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.603891][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.603891][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.603891][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.603891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.603891][ T10] [ 1234.606419][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1234.606419][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.606419][ T10] ipv6_find_idev+0x102/0x170 [ 1234.606419][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.606419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.606419][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.606419][ T10] netlink_unicast+0x449/0x710 [ 1234.606419][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.606419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.606419][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.606419][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.606419][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.606419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.606419][ T10] [ 1234.608367][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1234.608367][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.608367][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.608367][ T10] ipv6_find_idev+0x102/0x170 [ 1234.608367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.608367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.608367][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.608367][ T10] netlink_unicast+0x449/0x710 [ 1234.608367][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.608367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.608367][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.608367][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.608367][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.608367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.608367][ T10] [ 1234.610512][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1234.610869][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1234.610869][ T10] netdev_get_by_index+0x5e/0x80 [ 1234.610869][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1234.610869][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1234.610869][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1234.610869][ T10] ipv6_add_addr+0x411/0x2000 [ 1234.610869][ T10] inet6_addr_add+0x30e/0xa40 [ 1234.610869][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1234.610869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.610869][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.610869][ T10] netlink_unicast+0x449/0x710 [ 1234.610869][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.610869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.610869][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.610869][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.610869][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.610869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.610869][ T10] [ 1234.613229][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1234.613229][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1234.613229][ T10] ipv6_find_idev+0x102/0x170 [ 1234.613229][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.613229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.613229][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.613229][ T10] netlink_unicast+0x449/0x710 [ 1234.613229][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.613229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.613229][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.613229][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.613229][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.613229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.613229][ T10] [ 1234.615257][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1234.615257][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1234.615257][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1234.615257][ T10] ipv6_find_idev+0x102/0x170 [ 1234.615257][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1234.615257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1234.615257][ T10] netlink_rcv_skb+0x130/0x360 [ 1234.615257][ T10] netlink_unicast+0x449/0x710 [ 1234.615257][ T10] netlink_sendmsg+0x723/0xbe0 [ 1234.615257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1234.615257][ T10] ___sys_sendmsg+0xee/0x170 [ 1234.615257][ T10] __sys_sendmsg+0xcd/0x170 [ 1234.615257][ T10] do_syscall_64+0xc6/0x1e0 [ 1234.615257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1234.615257][ T10] [ 1244.747675][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1244.748056][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1244.748056][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.748056][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.748056][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.748056][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.748056][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.748056][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.748056][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.748056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.748056][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.748056][ T10] netlink_unicast+0x449/0x710 [ 1244.748056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.748056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.748056][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.748056][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.748056][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.748056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.748056][ T10] [ 1244.750176][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1244.750176][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.750176][ T10] ipv6_find_idev+0x102/0x170 [ 1244.750176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.750176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.750176][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.750176][ T10] netlink_unicast+0x449/0x710 [ 1244.750176][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.750176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.750176][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.750176][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.750176][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.750176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.750176][ T10] [ 1244.751764][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1244.751764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.751764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.751764][ T10] ipv6_find_idev+0x102/0x170 [ 1244.751764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.751764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.751764][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.751764][ T10] netlink_unicast+0x449/0x710 [ 1244.751764][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.751764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.751764][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.751764][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.751764][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.751764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.751764][ T10] [ 1244.753502][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1244.753804][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1244.753804][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.753804][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.753804][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.753804][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.753804][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.753804][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.753804][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.753804][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.753804][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.753804][ T10] netlink_unicast+0x449/0x710 [ 1244.753804][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.753804][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.753804][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.753804][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.753804][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.753804][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.753804][ T10] [ 1244.755943][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1244.755943][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.755943][ T10] ipv6_find_idev+0x102/0x170 [ 1244.755943][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.755943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.755943][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.755943][ T10] netlink_unicast+0x449/0x710 [ 1244.755943][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.755943][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.755943][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.755943][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.755943][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.755943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.755943][ T10] [ 1244.757554][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1244.757554][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.757554][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.757554][ T10] ipv6_find_idev+0x102/0x170 [ 1244.757554][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.757554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.757554][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.757554][ T10] netlink_unicast+0x449/0x710 [ 1244.757554][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.757554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.757554][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.757554][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.757554][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.757554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.757554][ T10] [ 1244.759321][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1244.759658][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1244.759658][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.759658][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.759658][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.759658][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.759658][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.759658][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.759658][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.759658][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.759658][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.759658][ T10] netlink_unicast+0x449/0x710 [ 1244.759658][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.759658][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.759658][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.759658][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.759658][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.759658][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.759658][ T10] [ 1244.761716][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1244.761716][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.761716][ T10] ipv6_find_idev+0x102/0x170 [ 1244.761716][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.761716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.761716][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.761716][ T10] netlink_unicast+0x449/0x710 [ 1244.761716][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.761716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.761716][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.761716][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.761716][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.761716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.761716][ T10] [ 1244.763340][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1244.763340][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.763340][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.763340][ T10] ipv6_find_idev+0x102/0x170 [ 1244.763340][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.763340][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.763340][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.763340][ T10] netlink_unicast+0x449/0x710 [ 1244.763340][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.763340][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.763340][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.763340][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.763340][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.763340][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.763340][ T10] [ 1244.765316][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1244.765600][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1244.765600][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.765600][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.765600][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.765600][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.765600][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.765600][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.765600][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.765600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.765600][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.765600][ T10] netlink_unicast+0x449/0x710 [ 1244.765600][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.765600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.765600][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.765600][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.765600][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.765600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.765600][ T10] [ 1244.767900][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1244.767900][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.767900][ T10] ipv6_find_idev+0x102/0x170 [ 1244.767900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.767900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.767900][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.767900][ T10] netlink_unicast+0x449/0x710 [ 1244.767900][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.767900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.767900][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.767900][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.767900][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.767900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.767900][ T10] [ 1244.769618][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1244.769618][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.769618][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.769618][ T10] ipv6_find_idev+0x102/0x170 [ 1244.769618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.769618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.769618][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.769618][ T10] netlink_unicast+0x449/0x710 [ 1244.769618][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.769618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.769618][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.769618][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.769618][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.769618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.769618][ T10] [ 1244.771561][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1244.772311][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1244.772311][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.772311][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.772311][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.772311][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.772311][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.772311][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.772311][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.772311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.772311][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.772311][ T10] netlink_unicast+0x449/0x710 [ 1244.772311][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.772311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.772311][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.772311][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.772311][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.772311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.772311][ T10] [ 1244.774418][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1244.774418][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.774418][ T10] ipv6_find_idev+0x102/0x170 [ 1244.774418][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.774418][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.774418][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.774418][ T10] netlink_unicast+0x449/0x710 [ 1244.774418][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.774418][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.774418][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.774418][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.774418][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.774418][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.774418][ T10] [ 1244.776201][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1244.776201][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.776201][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.776201][ T10] ipv6_find_idev+0x102/0x170 [ 1244.776201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.776201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.776201][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.776201][ T10] netlink_unicast+0x449/0x710 [ 1244.776201][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.776201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.776201][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.776201][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.776201][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.776201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.776201][ T10] [ 1244.778078][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1244.778407][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1244.778407][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.778407][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.778407][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.778407][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.778407][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.778407][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.778407][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.778407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.778407][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.778407][ T10] netlink_unicast+0x449/0x710 [ 1244.778407][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.778407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.778407][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.778407][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.778407][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.778407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.778407][ T10] [ 1244.780580][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1244.780580][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.780580][ T10] ipv6_find_idev+0x102/0x170 [ 1244.780580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.780580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.780580][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.780580][ T10] netlink_unicast+0x449/0x710 [ 1244.780580][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.780580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.780580][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.780580][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.780580][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.780580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.780580][ T10] [ 1244.782191][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1244.782191][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.782191][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.782191][ T10] ipv6_find_idev+0x102/0x170 [ 1244.782191][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.782191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.782191][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.782191][ T10] netlink_unicast+0x449/0x710 [ 1244.782191][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.782191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.782191][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.782191][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.782191][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.782191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.782191][ T10] [ 1244.784166][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1244.784504][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1244.784504][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.784504][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.784504][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.784504][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.784504][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.784504][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.784504][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.784504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.784504][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.784504][ T10] netlink_unicast+0x449/0x710 [ 1244.784504][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.784504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.784504][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.784504][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.784504][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.784504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.784504][ T10] [ 1244.786654][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1244.786654][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.786654][ T10] ipv6_find_idev+0x102/0x170 [ 1244.786654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.786654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.786654][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.786654][ T10] netlink_unicast+0x449/0x710 [ 1244.786654][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.786654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.786654][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.786654][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.786654][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.786654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.786654][ T10] [ 1244.788309][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1244.788309][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.788309][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.788309][ T10] ipv6_find_idev+0x102/0x170 [ 1244.788309][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.788309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.788309][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.788309][ T10] netlink_unicast+0x449/0x710 [ 1244.788309][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.788309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.788309][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.788309][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.788309][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.788309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.788309][ T10] [ 1244.790270][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1244.790605][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1244.790605][ T10] netdev_get_by_index+0x5e/0x80 [ 1244.790605][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1244.790605][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1244.790605][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1244.790605][ T10] ipv6_add_addr+0x411/0x2000 [ 1244.790605][ T10] inet6_addr_add+0x30e/0xa40 [ 1244.790605][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1244.790605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.790605][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.790605][ T10] netlink_unicast+0x449/0x710 [ 1244.790605][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.790605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.790605][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.790605][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.790605][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.790605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.790605][ T10] [ 1244.792850][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1244.792850][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1244.792850][ T10] ipv6_find_idev+0x102/0x170 [ 1244.792850][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.792850][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.792850][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.792850][ T10] netlink_unicast+0x449/0x710 [ 1244.792850][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.792850][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.792850][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.792850][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.792850][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.792850][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.792850][ T10] [ 1244.794694][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1244.794694][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1244.794694][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1244.794694][ T10] ipv6_find_idev+0x102/0x170 [ 1244.794694][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1244.794694][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1244.794694][ T10] netlink_rcv_skb+0x130/0x360 [ 1244.794694][ T10] netlink_unicast+0x449/0x710 [ 1244.794694][ T10] netlink_sendmsg+0x723/0xbe0 [ 1244.794694][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1244.794694][ T10] ___sys_sendmsg+0xee/0x170 [ 1244.794694][ T10] __sys_sendmsg+0xcd/0x170 [ 1244.794694][ T10] do_syscall_64+0xc6/0x1e0 [ 1244.794694][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1244.794694][ T10] [ 1254.843898][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1254.844278][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1254.844278][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.844278][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.844278][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.844278][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.844278][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.844278][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.844278][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.844278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.844278][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.844278][ T10] netlink_unicast+0x449/0x710 [ 1254.844278][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.844278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.844278][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.844278][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.844278][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.844278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.844278][ T10] [ 1254.846558][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1254.846558][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.846558][ T10] ipv6_find_idev+0x102/0x170 [ 1254.846558][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.846558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.846558][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.846558][ T10] netlink_unicast+0x449/0x710 [ 1254.846558][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.846558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.846558][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.846558][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.846558][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.846558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.846558][ T10] [ 1254.848318][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1254.848318][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.848318][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.848318][ T10] ipv6_find_idev+0x102/0x170 [ 1254.848318][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.848318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.848318][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.848318][ T10] netlink_unicast+0x449/0x710 [ 1254.848318][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.848318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.848318][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.848318][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.848318][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.848318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.848318][ T10] [ 1254.850550][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1254.850882][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1254.850882][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.850882][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.850882][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.850882][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.850882][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.850882][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.850882][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.850882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.850882][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.850882][ T10] netlink_unicast+0x449/0x710 [ 1254.850882][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.850882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.850882][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.850882][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.850882][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.850882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.850882][ T10] [ 1254.853199][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1254.853199][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.853199][ T10] ipv6_find_idev+0x102/0x170 [ 1254.853199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.853199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.853199][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.853199][ T10] netlink_unicast+0x449/0x710 [ 1254.853199][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.853199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.853199][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.853199][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.853199][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.853199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.853199][ T10] [ 1254.855018][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1254.855018][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.855018][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.855018][ T10] ipv6_find_idev+0x102/0x170 [ 1254.855018][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.855018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.855018][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.855018][ T10] netlink_unicast+0x449/0x710 [ 1254.855018][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.855018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.855018][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.855018][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.855018][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.855018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.855018][ T10] [ 1254.856994][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1254.857303][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1254.857303][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.857303][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.857303][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.857303][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.857303][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.857303][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.857303][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.857303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.857303][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.857303][ T10] netlink_unicast+0x449/0x710 [ 1254.857303][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.857303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.857303][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.857303][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.857303][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.857303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.857303][ T10] [ 1254.859621][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1254.859621][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.859621][ T10] ipv6_find_idev+0x102/0x170 [ 1254.859621][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.859621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.859621][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.859621][ T10] netlink_unicast+0x449/0x710 [ 1254.859621][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.859621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.859621][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.859621][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.859621][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.859621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.859621][ T10] [ 1254.861453][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1254.861453][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.861453][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.861453][ T10] ipv6_find_idev+0x102/0x170 [ 1254.861453][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.861453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.861453][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.861453][ T10] netlink_unicast+0x449/0x710 [ 1254.861453][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.861453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.861453][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.861453][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.861453][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.861453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.861453][ T10] [ 1254.863870][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1254.864186][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1254.864186][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.864186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.864186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.864186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.864186][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.864186][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.864186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.864186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.864186][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.864186][ T10] netlink_unicast+0x449/0x710 [ 1254.864186][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.864186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.864186][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.864186][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.864186][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.864186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.864186][ T10] [ 1254.866559][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1254.866559][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.866559][ T10] ipv6_find_idev+0x102/0x170 [ 1254.866559][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.866559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.866559][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.866559][ T10] netlink_unicast+0x449/0x710 [ 1254.866559][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.866559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.866559][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.866559][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.866559][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.866559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.866559][ T10] [ 1254.868294][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1254.868294][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.868294][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.868294][ T10] ipv6_find_idev+0x102/0x170 [ 1254.868294][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.868294][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.868294][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.868294][ T10] netlink_unicast+0x449/0x710 [ 1254.868294][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.868294][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.868294][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.868294][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.868294][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.868294][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.868294][ T10] [ 1254.870192][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1254.870497][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1254.870497][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.870497][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.870497][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.870497][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.870497][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.870497][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.870497][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.870497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.870497][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.870497][ T10] netlink_unicast+0x449/0x710 [ 1254.870497][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.870497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.870497][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.870497][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.870497][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.870497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.870497][ T10] [ 1254.872998][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1254.872998][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.872998][ T10] ipv6_find_idev+0x102/0x170 [ 1254.872998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.872998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.872998][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.872998][ T10] netlink_unicast+0x449/0x710 [ 1254.872998][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.872998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.872998][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.872998][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.872998][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.872998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.872998][ T10] [ 1254.875056][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1254.875056][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.875056][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.875056][ T10] ipv6_find_idev+0x102/0x170 [ 1254.875056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.875056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.875056][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.875056][ T10] netlink_unicast+0x449/0x710 [ 1254.875056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.875056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.875056][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.875056][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.875056][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.875056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.875056][ T10] [ 1254.877561][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1254.877935][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1254.877935][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.877935][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.877935][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.877935][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.877935][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.877935][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.877935][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.877935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.877935][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.877935][ T10] netlink_unicast+0x449/0x710 [ 1254.877935][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.877935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.877935][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.877935][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.877935][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.877935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.877935][ T10] [ 1254.880628][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1254.880628][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.880628][ T10] ipv6_find_idev+0x102/0x170 [ 1254.880628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.880628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.880628][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.880628][ T10] netlink_unicast+0x449/0x710 [ 1254.880628][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.880628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.880628][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.880628][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.880628][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.880628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.880628][ T10] [ 1254.882713][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1254.882713][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.882713][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.882713][ T10] ipv6_find_idev+0x102/0x170 [ 1254.882713][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.882713][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.882713][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.882713][ T10] netlink_unicast+0x449/0x710 [ 1254.882713][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.882713][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.882713][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.882713][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.882713][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.882713][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.882713][ T10] [ 1254.884754][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1254.885048][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1254.885048][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.885048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.885048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.885048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.885048][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.885048][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.885048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.885048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.885048][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.885048][ T10] netlink_unicast+0x449/0x710 [ 1254.885048][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.885048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.885048][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.885048][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.885048][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.885048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.885048][ T10] [ 1254.887560][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1254.887560][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.887560][ T10] ipv6_find_idev+0x102/0x170 [ 1254.887560][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.887560][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.887560][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.887560][ T10] netlink_unicast+0x449/0x710 [ 1254.887560][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.887560][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.887560][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.887560][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.887560][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.887560][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.887560][ T10] [ 1254.889295][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1254.889295][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.889295][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.889295][ T10] ipv6_find_idev+0x102/0x170 [ 1254.889295][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.889295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.889295][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.889295][ T10] netlink_unicast+0x449/0x710 [ 1254.889295][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.889295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.889295][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.889295][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.889295][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.889295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.889295][ T10] [ 1254.891353][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1254.891659][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1254.891659][ T10] netdev_get_by_index+0x5e/0x80 [ 1254.891659][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1254.891659][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1254.891659][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1254.891659][ T10] ipv6_add_addr+0x411/0x2000 [ 1254.891659][ T10] inet6_addr_add+0x30e/0xa40 [ 1254.891659][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1254.891659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.891659][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.891659][ T10] netlink_unicast+0x449/0x710 [ 1254.891659][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.891659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.891659][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.891659][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.891659][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.891659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.891659][ T10] [ 1254.894155][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1254.894155][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1254.894155][ T10] ipv6_find_idev+0x102/0x170 [ 1254.894155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.894155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.894155][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.894155][ T10] netlink_unicast+0x449/0x710 [ 1254.894155][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.894155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.894155][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.894155][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.894155][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.894155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.894155][ T10] [ 1254.896202][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1254.896202][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1254.896202][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1254.896202][ T10] ipv6_find_idev+0x102/0x170 [ 1254.896202][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1254.896202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1254.896202][ T10] netlink_rcv_skb+0x130/0x360 [ 1254.896202][ T10] netlink_unicast+0x449/0x710 [ 1254.896202][ T10] netlink_sendmsg+0x723/0xbe0 [ 1254.896202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1254.896202][ T10] ___sys_sendmsg+0xee/0x170 [ 1254.896202][ T10] __sys_sendmsg+0xcd/0x170 [ 1254.896202][ T10] do_syscall_64+0xc6/0x1e0 [ 1254.896202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1254.896202][ T10] [ 1265.011680][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1265.012124][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1265.012124][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.012124][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.012124][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.012124][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.012124][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.012124][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.012124][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.012124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.012124][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.012124][ T10] netlink_unicast+0x449/0x710 [ 1265.012124][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.012124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.012124][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.012124][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.012124][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.012124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.012124][ T10] [ 1265.014650][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1265.014650][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.014650][ T10] ipv6_find_idev+0x102/0x170 [ 1265.014650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.014650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.014650][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.014650][ T10] netlink_unicast+0x449/0x710 [ 1265.014650][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.014650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.014650][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.014650][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.014650][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.014650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.014650][ T10] [ 1265.016550][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1265.016550][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.016550][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.016550][ T10] ipv6_find_idev+0x102/0x170 [ 1265.016550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.016550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.016550][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.016550][ T10] netlink_unicast+0x449/0x710 [ 1265.016550][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.016550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.016550][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.016550][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.016550][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.016550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.016550][ T10] [ 1265.018726][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1265.019102][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1265.019102][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.019102][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.019102][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.019102][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.019102][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.019102][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.019102][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.019102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.019102][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.019102][ T10] netlink_unicast+0x449/0x710 [ 1265.019102][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.019102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.019102][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.019102][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.019102][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.019102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.019102][ T10] [ 1265.021556][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1265.021556][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.021556][ T10] ipv6_find_idev+0x102/0x170 [ 1265.021556][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.021556][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.021556][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.021556][ T10] netlink_unicast+0x449/0x710 [ 1265.021556][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.021556][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.021556][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.021556][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.021556][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.021556][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.021556][ T10] [ 1265.023438][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1265.023438][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.023438][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.023438][ T10] ipv6_find_idev+0x102/0x170 [ 1265.023438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.023438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.023438][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.023438][ T10] netlink_unicast+0x449/0x710 [ 1265.023438][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.023438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.023438][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.023438][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.023438][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.023438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.023438][ T10] [ 1265.025574][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1265.025954][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1265.025954][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.025954][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.025954][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.025954][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.025954][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.025954][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.025954][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.025954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.025954][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.025954][ T10] netlink_unicast+0x449/0x710 [ 1265.025954][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.025954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.025954][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.025954][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.025954][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.025954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.025954][ T10] [ 1265.028450][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1265.028450][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.028450][ T10] ipv6_find_idev+0x102/0x170 [ 1265.028450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.028450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.028450][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.028450][ T10] netlink_unicast+0x449/0x710 [ 1265.028450][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.028450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.028450][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.028450][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.028450][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.028450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.028450][ T10] [ 1265.030327][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1265.030327][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.030327][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.030327][ T10] ipv6_find_idev+0x102/0x170 [ 1265.030327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.030327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.030327][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.030327][ T10] netlink_unicast+0x449/0x710 [ 1265.030327][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.030327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.030327][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.030327][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.030327][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.030327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.030327][ T10] [ 1265.032382][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1265.032741][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1265.032741][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.032741][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.032741][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.032741][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.032741][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.032741][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.032741][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.032741][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.032741][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.032741][ T10] netlink_unicast+0x449/0x710 [ 1265.032741][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.032741][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.032741][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.032741][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.032741][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.032741][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.032741][ T10] [ 1265.035191][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1265.035191][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.035191][ T10] ipv6_find_idev+0x102/0x170 [ 1265.035191][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.035191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.035191][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.035191][ T10] netlink_unicast+0x449/0x710 [ 1265.035191][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.035191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.035191][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.035191][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.035191][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.035191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.035191][ T10] [ 1265.037072][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1265.037072][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.037072][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.037072][ T10] ipv6_find_idev+0x102/0x170 [ 1265.037072][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.037072][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.037072][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.037072][ T10] netlink_unicast+0x449/0x710 [ 1265.037072][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.037072][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.037072][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.037072][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.037072][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.037072][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.037072][ T10] [ 1265.039586][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1265.040350][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1265.040350][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.040350][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.040350][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.040350][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.040350][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.040350][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.040350][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.040350][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.040350][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.040350][ T10] netlink_unicast+0x449/0x710 [ 1265.040350][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.040350][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.040350][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.040350][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.040350][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.040350][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.040350][ T10] [ 1265.042832][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1265.042832][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.042832][ T10] ipv6_find_idev+0x102/0x170 [ 1265.042832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.042832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.042832][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.042832][ T10] netlink_unicast+0x449/0x710 [ 1265.042832][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.042832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.042832][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.042832][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.042832][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.042832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.042832][ T10] [ 1265.044716][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1265.044716][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.044716][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.044716][ T10] ipv6_find_idev+0x102/0x170 [ 1265.044716][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.044716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.044716][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.044716][ T10] netlink_unicast+0x449/0x710 [ 1265.044716][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.044716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.044716][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.044716][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.044716][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.044716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.044716][ T10] [ 1265.046787][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1265.047124][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1265.047124][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.047124][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.047124][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.047124][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.047124][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.047124][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.047124][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.047124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.047124][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.047124][ T10] netlink_unicast+0x449/0x710 [ 1265.047124][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.047124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.047124][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.047124][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.047124][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.047124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.047124][ T10] [ 1265.049591][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1265.049591][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.049591][ T10] ipv6_find_idev+0x102/0x170 [ 1265.049591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.049591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.049591][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.049591][ T10] netlink_unicast+0x449/0x710 [ 1265.049591][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.049591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.049591][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.049591][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.049591][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.049591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.049591][ T10] [ 1265.051530][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1265.051530][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.051530][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.051530][ T10] ipv6_find_idev+0x102/0x170 [ 1265.051530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.051530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.051530][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.051530][ T10] netlink_unicast+0x449/0x710 [ 1265.051530][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.051530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.051530][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.051530][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.051530][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.051530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.051530][ T10] [ 1265.053910][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1265.054243][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1265.054243][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.054243][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.054243][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.054243][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.054243][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.054243][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.054243][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.054243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.054243][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.054243][ T10] netlink_unicast+0x449/0x710 [ 1265.054243][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.054243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.054243][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.054243][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.054243][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.054243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.054243][ T10] [ 1265.056812][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1265.056812][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.056812][ T10] ipv6_find_idev+0x102/0x170 [ 1265.056812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.056812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.056812][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.056812][ T10] netlink_unicast+0x449/0x710 [ 1265.056812][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.056812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.056812][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.056812][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.056812][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.056812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.056812][ T10] [ 1265.058883][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1265.058883][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.058883][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.058883][ T10] ipv6_find_idev+0x102/0x170 [ 1265.058883][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.058883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.058883][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.058883][ T10] netlink_unicast+0x449/0x710 [ 1265.058883][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.058883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.058883][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.058883][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.058883][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.058883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.058883][ T10] [ 1265.061174][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1265.061574][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1265.061574][ T10] netdev_get_by_index+0x5e/0x80 [ 1265.061574][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1265.061574][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1265.061574][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1265.061574][ T10] ipv6_add_addr+0x411/0x2000 [ 1265.061574][ T10] inet6_addr_add+0x30e/0xa40 [ 1265.061574][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1265.061574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.061574][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.061574][ T10] netlink_unicast+0x449/0x710 [ 1265.061574][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.061574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.061574][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.061574][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.061574][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.061574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.061574][ T10] [ 1265.064044][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1265.064044][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1265.064044][ T10] ipv6_find_idev+0x102/0x170 [ 1265.064044][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.064044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.064044][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.064044][ T10] netlink_unicast+0x449/0x710 [ 1265.064044][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.064044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.064044][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.064044][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.064044][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.064044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.064044][ T10] [ 1265.065917][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1265.065917][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1265.065917][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1265.065917][ T10] ipv6_find_idev+0x102/0x170 [ 1265.065917][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1265.065917][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1265.065917][ T10] netlink_rcv_skb+0x130/0x360 [ 1265.065917][ T10] netlink_unicast+0x449/0x710 [ 1265.065917][ T10] netlink_sendmsg+0x723/0xbe0 [ 1265.065917][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1265.065917][ T10] ___sys_sendmsg+0xee/0x170 [ 1265.065917][ T10] __sys_sendmsg+0xcd/0x170 [ 1265.065917][ T10] do_syscall_64+0xc6/0x1e0 [ 1265.065917][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1265.065917][ T10] [ 1275.235865][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1275.236304][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1275.236304][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.236304][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.236304][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.236304][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.236304][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.236304][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.236304][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.236304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.236304][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.236304][ T10] netlink_unicast+0x449/0x710 [ 1275.236304][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.236304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.236304][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.236304][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.236304][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.236304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.236304][ T10] [ 1275.238460][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1275.238460][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.238460][ T10] ipv6_find_idev+0x102/0x170 [ 1275.238460][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.238460][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.238460][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.238460][ T10] netlink_unicast+0x449/0x710 [ 1275.238460][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.238460][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.238460][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.238460][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.238460][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.238460][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.238460][ T10] [ 1275.240040][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1275.240040][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.240040][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.240040][ T10] ipv6_find_idev+0x102/0x170 [ 1275.240040][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.240040][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.240040][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.240040][ T10] netlink_unicast+0x449/0x710 [ 1275.240040][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.240040][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.240040][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.240040][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.240040][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.240040][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.240040][ T10] [ 1275.241790][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1275.242081][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1275.242081][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.242081][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.242081][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.242081][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.242081][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.242081][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.242081][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.242081][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.242081][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.242081][ T10] netlink_unicast+0x449/0x710 [ 1275.242081][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.242081][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.242081][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.242081][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.242081][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.242081][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.242081][ T10] [ 1275.244164][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1275.244164][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.244164][ T10] ipv6_find_idev+0x102/0x170 [ 1275.244164][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.244164][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.244164][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.244164][ T10] netlink_unicast+0x449/0x710 [ 1275.244164][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.244164][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.244164][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.244164][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.244164][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.244164][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.244164][ T10] [ 1275.245745][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1275.245745][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.245745][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.245745][ T10] ipv6_find_idev+0x102/0x170 [ 1275.245745][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.245745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.245745][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.245745][ T10] netlink_unicast+0x449/0x710 [ 1275.245745][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.245745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.245745][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.245745][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.245745][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.245745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.245745][ T10] [ 1275.247481][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1275.247805][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1275.247805][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.247805][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.247805][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.247805][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.247805][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.247805][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.247805][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.247805][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.247805][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.247805][ T10] netlink_unicast+0x449/0x710 [ 1275.247805][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.247805][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.247805][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.247805][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.247805][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.247805][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.247805][ T10] [ 1275.249851][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1275.249851][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.249851][ T10] ipv6_find_idev+0x102/0x170 [ 1275.249851][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.249851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.249851][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.249851][ T10] netlink_unicast+0x449/0x710 [ 1275.249851][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.249851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.249851][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.249851][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.249851][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.249851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.249851][ T10] [ 1275.251445][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1275.251445][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.251445][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.251445][ T10] ipv6_find_idev+0x102/0x170 [ 1275.251445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.251445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.251445][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.251445][ T10] netlink_unicast+0x449/0x710 [ 1275.251445][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.251445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.251445][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.251445][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.251445][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.251445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.251445][ T10] [ 1275.253177][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1275.253467][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1275.253467][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.253467][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.253467][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.253467][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.253467][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.253467][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.253467][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.253467][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.253467][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.253467][ T10] netlink_unicast+0x449/0x710 [ 1275.253467][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.253467][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.253467][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.253467][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.253467][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.253467][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.253467][ T10] [ 1275.255509][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1275.255509][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.255509][ T10] ipv6_find_idev+0x102/0x170 [ 1275.255509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.255509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.255509][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.255509][ T10] netlink_unicast+0x449/0x710 [ 1275.255509][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.255509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.255509][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.255509][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.255509][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.255509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.255509][ T10] [ 1275.257085][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1275.257085][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.257085][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.257085][ T10] ipv6_find_idev+0x102/0x170 [ 1275.257085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.257085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.257085][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.257085][ T10] netlink_unicast+0x449/0x710 [ 1275.257085][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.257085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.257085][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.257085][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.257085][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.257085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.257085][ T10] [ 1275.258792][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1275.259070][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1275.259070][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.259070][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.259070][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.259070][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.259070][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.259070][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.259070][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.259070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.259070][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.259070][ T10] netlink_unicast+0x449/0x710 [ 1275.259070][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.259070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.259070][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.259070][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.259070][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.259070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.259070][ T10] [ 1275.261096][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1275.261096][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.261096][ T10] ipv6_find_idev+0x102/0x170 [ 1275.261096][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.261096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.261096][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.261096][ T10] netlink_unicast+0x449/0x710 [ 1275.261096][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.261096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.261096][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.261096][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.261096][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.261096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.261096][ T10] [ 1275.262733][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1275.262733][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.262733][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.262733][ T10] ipv6_find_idev+0x102/0x170 [ 1275.262733][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.262733][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.262733][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.262733][ T10] netlink_unicast+0x449/0x710 [ 1275.262733][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.262733][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.262733][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.262733][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.262733][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.262733][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.262733][ T10] [ 1275.265144][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1275.265883][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1275.265883][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.265883][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.265883][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.265883][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.265883][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.265883][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.265883][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.265883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.265883][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.265883][ T10] netlink_unicast+0x449/0x710 [ 1275.265883][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.265883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.265883][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.265883][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.265883][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.265883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.265883][ T10] [ 1275.267916][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1275.267916][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.267916][ T10] ipv6_find_idev+0x102/0x170 [ 1275.267916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.267916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.267916][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.267916][ T10] netlink_unicast+0x449/0x710 [ 1275.267916][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.267916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.267916][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.267916][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.267916][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.267916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.267916][ T10] [ 1275.269486][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1275.269486][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.269486][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.269486][ T10] ipv6_find_idev+0x102/0x170 [ 1275.269486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.269486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.269486][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.269486][ T10] netlink_unicast+0x449/0x710 [ 1275.269486][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.269486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.269486][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.269486][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.269486][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.269486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.269486][ T10] [ 1275.271259][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1275.271579][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1275.271579][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.271579][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.271579][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.271579][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.271579][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.271579][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.271579][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.271579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.271579][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.271579][ T10] netlink_unicast+0x449/0x710 [ 1275.271579][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.271579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.271579][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.271579][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.271579][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.271579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.271579][ T10] [ 1275.273739][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1275.273739][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.273739][ T10] ipv6_find_idev+0x102/0x170 [ 1275.273739][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.273739][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.273739][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.273739][ T10] netlink_unicast+0x449/0x710 [ 1275.273739][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.273739][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.273739][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.273739][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.273739][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.273739][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.273739][ T10] [ 1275.275516][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1275.275516][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.275516][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.275516][ T10] ipv6_find_idev+0x102/0x170 [ 1275.275516][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.275516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.275516][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.275516][ T10] netlink_unicast+0x449/0x710 [ 1275.275516][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.275516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.275516][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.275516][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.275516][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.275516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.275516][ T10] [ 1275.277461][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1275.277792][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1275.277792][ T10] netdev_get_by_index+0x5e/0x80 [ 1275.277792][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1275.277792][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1275.277792][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1275.277792][ T10] ipv6_add_addr+0x411/0x2000 [ 1275.277792][ T10] inet6_addr_add+0x30e/0xa40 [ 1275.277792][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1275.277792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.277792][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.277792][ T10] netlink_unicast+0x449/0x710 [ 1275.277792][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.277792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.277792][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.277792][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.277792][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.277792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.277792][ T10] [ 1275.280006][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1275.280006][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1275.280006][ T10] ipv6_find_idev+0x102/0x170 [ 1275.280006][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.280006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.280006][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.280006][ T10] netlink_unicast+0x449/0x710 [ 1275.280006][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.280006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.280006][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.280006][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.280006][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.280006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.280006][ T10] [ 1275.281758][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1275.281758][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1275.281758][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1275.281758][ T10] ipv6_find_idev+0x102/0x170 [ 1275.281758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1275.281758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1275.281758][ T10] netlink_rcv_skb+0x130/0x360 [ 1275.281758][ T10] netlink_unicast+0x449/0x710 [ 1275.281758][ T10] netlink_sendmsg+0x723/0xbe0 [ 1275.281758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1275.281758][ T10] ___sys_sendmsg+0xee/0x170 [ 1275.281758][ T10] __sys_sendmsg+0xcd/0x170 [ 1275.281758][ T10] do_syscall_64+0xc6/0x1e0 [ 1275.281758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1275.281758][ T10] [ 1285.523799][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1285.524282][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1285.524282][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.524282][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.524282][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.524282][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.524282][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.524282][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.524282][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.524282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.524282][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.524282][ T10] netlink_unicast+0x449/0x710 [ 1285.524282][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.524282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.524282][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.524282][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.524282][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.524282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.524282][ T10] [ 1285.526438][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1285.526438][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.526438][ T10] ipv6_find_idev+0x102/0x170 [ 1285.526438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.526438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.526438][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.526438][ T10] netlink_unicast+0x449/0x710 [ 1285.526438][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.526438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.526438][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.526438][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.526438][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.526438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.526438][ T10] [ 1285.528022][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1285.528022][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.528022][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.528022][ T10] ipv6_find_idev+0x102/0x170 [ 1285.528022][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.528022][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.528022][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.528022][ T10] netlink_unicast+0x449/0x710 [ 1285.528022][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.528022][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.528022][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.528022][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.528022][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.528022][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.528022][ T10] [ 1285.529769][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1285.530054][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1285.530054][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.530054][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.530054][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.530054][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.530054][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.530054][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.530054][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.530054][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.530054][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.530054][ T10] netlink_unicast+0x449/0x710 [ 1285.530054][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.530054][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.530054][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.530054][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.530054][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.530054][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.530054][ T10] [ 1285.532130][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1285.532130][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.532130][ T10] ipv6_find_idev+0x102/0x170 [ 1285.532130][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.532130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.532130][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.532130][ T10] netlink_unicast+0x449/0x710 [ 1285.532130][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.532130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.532130][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.532130][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.532130][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.532130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.532130][ T10] [ 1285.533708][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1285.533708][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.533708][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.533708][ T10] ipv6_find_idev+0x102/0x170 [ 1285.533708][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.533708][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.533708][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.533708][ T10] netlink_unicast+0x449/0x710 [ 1285.533708][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.533708][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.533708][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.533708][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.533708][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.533708][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.533708][ T10] [ 1285.535447][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1285.535737][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1285.535737][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.535737][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.535737][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.535737][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.535737][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.535737][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.535737][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.535737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.535737][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.535737][ T10] netlink_unicast+0x449/0x710 [ 1285.535737][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.535737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.535737][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.535737][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.535737][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.535737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.535737][ T10] [ 1285.537791][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1285.537791][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.537791][ T10] ipv6_find_idev+0x102/0x170 [ 1285.537791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.537791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.537791][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.537791][ T10] netlink_unicast+0x449/0x710 [ 1285.537791][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.537791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.537791][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.537791][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.537791][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.537791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.537791][ T10] [ 1285.539407][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1285.539407][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.539407][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.539407][ T10] ipv6_find_idev+0x102/0x170 [ 1285.539407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.539407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.539407][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.539407][ T10] netlink_unicast+0x449/0x710 [ 1285.539407][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.539407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.539407][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.539407][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.539407][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.539407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.539407][ T10] [ 1285.541182][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1285.541457][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1285.541457][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.541457][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.541457][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.541457][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.541457][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.541457][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.541457][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.541457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.541457][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.541457][ T10] netlink_unicast+0x449/0x710 [ 1285.541457][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.541457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.541457][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.541457][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.541457][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.541457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.541457][ T10] [ 1285.543471][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1285.543471][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.543471][ T10] ipv6_find_idev+0x102/0x170 [ 1285.543471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.543471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.543471][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.543471][ T10] netlink_unicast+0x449/0x710 [ 1285.543471][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.543471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.543471][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.543471][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.543471][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.543471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.543471][ T10] [ 1285.545015][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1285.545015][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.545015][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.545015][ T10] ipv6_find_idev+0x102/0x170 [ 1285.545015][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.545015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.545015][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.545015][ T10] netlink_unicast+0x449/0x710 [ 1285.545015][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.545015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.545015][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.545015][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.545015][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.545015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.545015][ T10] [ 1285.547148][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1285.547813][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1285.547813][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.547813][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.547813][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.547813][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.547813][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.547813][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.547813][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.547813][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.547813][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.547813][ T10] netlink_unicast+0x449/0x710 [ 1285.547813][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.547813][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.547813][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.547813][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.547813][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.547813][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.547813][ T10] [ 1285.549838][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1285.549838][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.549838][ T10] ipv6_find_idev+0x102/0x170 [ 1285.549838][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.549838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.549838][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.549838][ T10] netlink_unicast+0x449/0x710 [ 1285.549838][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.549838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.549838][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.549838][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.549838][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.549838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.549838][ T10] [ 1285.551377][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1285.551377][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.551377][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.551377][ T10] ipv6_find_idev+0x102/0x170 [ 1285.551377][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.551377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.551377][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.551377][ T10] netlink_unicast+0x449/0x710 [ 1285.551377][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.551377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.551377][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.551377][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.551377][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.551377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.551377][ T10] [ 1285.553071][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1285.553345][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1285.553345][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.553345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.553345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.553345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.553345][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.553345][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.553345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.553345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.553345][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.553345][ T10] netlink_unicast+0x449/0x710 [ 1285.553345][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.553345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.553345][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.553345][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.553345][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.553345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.553345][ T10] [ 1285.555351][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1285.555351][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.555351][ T10] ipv6_find_idev+0x102/0x170 [ 1285.555351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.555351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.555351][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.555351][ T10] netlink_unicast+0x449/0x710 [ 1285.555351][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.555351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.555351][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.555351][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.555351][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.555351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.555351][ T10] [ 1285.556974][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1285.556974][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.556974][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.556974][ T10] ipv6_find_idev+0x102/0x170 [ 1285.556974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.556974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.556974][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.556974][ T10] netlink_unicast+0x449/0x710 [ 1285.556974][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.556974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.556974][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.556974][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.556974][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.556974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.556974][ T10] [ 1285.558850][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1285.559169][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1285.559169][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.559169][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.559169][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.559169][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.559169][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.559169][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.559169][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.559169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.559169][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.559169][ T10] netlink_unicast+0x449/0x710 [ 1285.559169][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.559169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.559169][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.559169][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.559169][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.559169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.559169][ T10] [ 1285.561234][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1285.561234][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.561234][ T10] ipv6_find_idev+0x102/0x170 [ 1285.561234][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.561234][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.561234][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.561234][ T10] netlink_unicast+0x449/0x710 [ 1285.561234][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.561234][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.561234][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.561234][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.561234][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.561234][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.561234][ T10] [ 1285.562915][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1285.562915][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.562915][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.562915][ T10] ipv6_find_idev+0x102/0x170 [ 1285.562915][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.562915][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.562915][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.562915][ T10] netlink_unicast+0x449/0x710 [ 1285.562915][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.562915][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.562915][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.562915][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.562915][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.562915][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.562915][ T10] [ 1285.564815][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1285.565144][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1285.565144][ T10] netdev_get_by_index+0x5e/0x80 [ 1285.565144][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1285.565144][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1285.565144][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1285.565144][ T10] ipv6_add_addr+0x411/0x2000 [ 1285.565144][ T10] inet6_addr_add+0x30e/0xa40 [ 1285.565144][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1285.565144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.565144][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.565144][ T10] netlink_unicast+0x449/0x710 [ 1285.565144][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.565144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.565144][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.565144][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.565144][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.565144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.565144][ T10] [ 1285.567205][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1285.567205][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1285.567205][ T10] ipv6_find_idev+0x102/0x170 [ 1285.567205][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.567205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.567205][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.567205][ T10] netlink_unicast+0x449/0x710 [ 1285.567205][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.567205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.567205][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.567205][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.567205][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.567205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.567205][ T10] [ 1285.568818][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1285.568818][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1285.568818][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1285.568818][ T10] ipv6_find_idev+0x102/0x170 [ 1285.568818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1285.568818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1285.568818][ T10] netlink_rcv_skb+0x130/0x360 [ 1285.568818][ T10] netlink_unicast+0x449/0x710 [ 1285.568818][ T10] netlink_sendmsg+0x723/0xbe0 [ 1285.568818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1285.568818][ T10] ___sys_sendmsg+0xee/0x170 [ 1285.568818][ T10] __sys_sendmsg+0xcd/0x170 [ 1285.568818][ T10] do_syscall_64+0xc6/0x1e0 [ 1285.568818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1285.568818][ T10] [ 1295.835835][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1295.836325][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1295.836325][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.836325][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.836325][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.836325][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.836325][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.836325][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.836325][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.836325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.836325][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.836325][ T10] netlink_unicast+0x449/0x710 [ 1295.836325][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.836325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.836325][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.836325][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.836325][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.836325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.836325][ T10] [ 1295.838359][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1295.838359][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.838359][ T10] ipv6_find_idev+0x102/0x170 [ 1295.838359][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.838359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.838359][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.838359][ T10] netlink_unicast+0x449/0x710 [ 1295.838359][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.838359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.838359][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.838359][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.838359][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.838359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.838359][ T10] [ 1295.839904][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1295.839904][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.839904][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.839904][ T10] ipv6_find_idev+0x102/0x170 [ 1295.839904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.839904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.839904][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.839904][ T10] netlink_unicast+0x449/0x710 [ 1295.839904][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.839904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.839904][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.839904][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.839904][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.839904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.839904][ T10] [ 1295.841622][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1295.841931][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1295.841931][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.841931][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.841931][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.841931][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.841931][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.841931][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.841931][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.841931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.841931][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.841931][ T10] netlink_unicast+0x449/0x710 [ 1295.841931][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.841931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.841931][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.841931][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.841931][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.841931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.841931][ T10] [ 1295.843941][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1295.843941][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.843941][ T10] ipv6_find_idev+0x102/0x170 [ 1295.843941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.843941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.843941][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.843941][ T10] netlink_unicast+0x449/0x710 [ 1295.843941][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.843941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.843941][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.843941][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.843941][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.843941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.843941][ T10] [ 1295.845484][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1295.845484][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.845484][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.845484][ T10] ipv6_find_idev+0x102/0x170 [ 1295.845484][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.845484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.845484][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.845484][ T10] netlink_unicast+0x449/0x710 [ 1295.845484][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.845484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.845484][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.845484][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.845484][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.845484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.845484][ T10] [ 1295.847177][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1295.847445][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1295.847445][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.847445][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.847445][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.847445][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.847445][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.847445][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.847445][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.847445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.847445][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.847445][ T10] netlink_unicast+0x449/0x710 [ 1295.847445][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.847445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.847445][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.847445][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.847445][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.847445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.847445][ T10] [ 1295.849445][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1295.849445][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.849445][ T10] ipv6_find_idev+0x102/0x170 [ 1295.849445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.849445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.849445][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.849445][ T10] netlink_unicast+0x449/0x710 [ 1295.849445][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.849445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.849445][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.849445][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.849445][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.849445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.849445][ T10] [ 1295.850987][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1295.850987][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.850987][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.850987][ T10] ipv6_find_idev+0x102/0x170 [ 1295.850987][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.850987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.850987][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.850987][ T10] netlink_unicast+0x449/0x710 [ 1295.850987][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.850987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.850987][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.850987][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.850987][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.850987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.850987][ T10] [ 1295.852681][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1295.852948][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1295.852948][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.852948][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.852948][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.852948][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.852948][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.852948][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.852948][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.852948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.852948][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.852948][ T10] netlink_unicast+0x449/0x710 [ 1295.852948][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.852948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.852948][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.852948][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.852948][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.852948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.852948][ T10] [ 1295.855001][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1295.855001][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.855001][ T10] ipv6_find_idev+0x102/0x170 [ 1295.855001][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.855001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.855001][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.855001][ T10] netlink_unicast+0x449/0x710 [ 1295.855001][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.855001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.855001][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.855001][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.855001][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.855001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.855001][ T10] [ 1295.856570][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1295.856570][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.856570][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.856570][ T10] ipv6_find_idev+0x102/0x170 [ 1295.856570][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.856570][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.856570][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.856570][ T10] netlink_unicast+0x449/0x710 [ 1295.856570][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.856570][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.856570][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.856570][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.856570][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.856570][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.856570][ T10] [ 1295.858689][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1295.859285][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1295.859285][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.859285][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.859285][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.859285][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.859285][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.859285][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.859285][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.859285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.859285][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.859285][ T10] netlink_unicast+0x449/0x710 [ 1295.859285][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.859285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.859285][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.859285][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.859285][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.859285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.859285][ T10] [ 1295.861280][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1295.861280][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.861280][ T10] ipv6_find_idev+0x102/0x170 [ 1295.861280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.861280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.861280][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.861280][ T10] netlink_unicast+0x449/0x710 [ 1295.861280][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.861280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.861280][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.861280][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.861280][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.861280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.861280][ T10] [ 1295.862812][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1295.862812][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.862812][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.862812][ T10] ipv6_find_idev+0x102/0x170 [ 1295.862812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.862812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.862812][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.862812][ T10] netlink_unicast+0x449/0x710 [ 1295.862812][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.862812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.862812][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.862812][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.862812][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.862812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.862812][ T10] [ 1295.864584][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1295.864920][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1295.864920][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.864920][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.864920][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.864920][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.864920][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.864920][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.864920][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.864920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.864920][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.864920][ T10] netlink_unicast+0x449/0x710 [ 1295.864920][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.864920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.864920][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.864920][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.864920][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.864920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.864920][ T10] [ 1295.866921][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1295.866921][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.866921][ T10] ipv6_find_idev+0x102/0x170 [ 1295.866921][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.866921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.866921][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.866921][ T10] netlink_unicast+0x449/0x710 [ 1295.866921][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.866921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.866921][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.866921][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.866921][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.866921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.866921][ T10] [ 1295.868466][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1295.868466][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.868466][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.868466][ T10] ipv6_find_idev+0x102/0x170 [ 1295.868466][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.868466][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.868466][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.868466][ T10] netlink_unicast+0x449/0x710 [ 1295.868466][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.868466][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.868466][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.868466][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.868466][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.868466][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.868466][ T10] [ 1295.870509][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1295.870854][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1295.870854][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.870854][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.870854][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.870854][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.870854][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.870854][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.870854][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.870854][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.870854][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.870854][ T10] netlink_unicast+0x449/0x710 [ 1295.870854][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.870854][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.870854][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.870854][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.870854][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.870854][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.870854][ T10] [ 1295.873052][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1295.873052][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.873052][ T10] ipv6_find_idev+0x102/0x170 [ 1295.873052][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.873052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.873052][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.873052][ T10] netlink_unicast+0x449/0x710 [ 1295.873052][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.873052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.873052][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.873052][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.873052][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.873052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.873052][ T10] [ 1295.874778][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1295.874778][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.874778][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.874778][ T10] ipv6_find_idev+0x102/0x170 [ 1295.874778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.874778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.874778][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.874778][ T10] netlink_unicast+0x449/0x710 [ 1295.874778][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.874778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.874778][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.874778][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.874778][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.874778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.874778][ T10] [ 1295.876697][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1295.877014][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1295.877014][ T10] netdev_get_by_index+0x5e/0x80 [ 1295.877014][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1295.877014][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1295.877014][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1295.877014][ T10] ipv6_add_addr+0x411/0x2000 [ 1295.877014][ T10] inet6_addr_add+0x30e/0xa40 [ 1295.877014][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1295.877014][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.877014][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.877014][ T10] netlink_unicast+0x449/0x710 [ 1295.877014][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.877014][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.877014][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.877014][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.877014][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.877014][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.877014][ T10] [ 1295.879189][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1295.879189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1295.879189][ T10] ipv6_find_idev+0x102/0x170 [ 1295.879189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.879189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.879189][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.879189][ T10] netlink_unicast+0x449/0x710 [ 1295.879189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.879189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.879189][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.879189][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.879189][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.879189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.879189][ T10] [ 1295.880903][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1295.880903][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1295.880903][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1295.880903][ T10] ipv6_find_idev+0x102/0x170 [ 1295.880903][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1295.880903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1295.880903][ T10] netlink_rcv_skb+0x130/0x360 [ 1295.880903][ T10] netlink_unicast+0x449/0x710 [ 1295.880903][ T10] netlink_sendmsg+0x723/0xbe0 [ 1295.880903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1295.880903][ T10] ___sys_sendmsg+0xee/0x170 [ 1295.880903][ T10] __sys_sendmsg+0xcd/0x170 [ 1295.880903][ T10] do_syscall_64+0xc6/0x1e0 [ 1295.880903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1295.880903][ T10] [ 1305.987665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1305.988044][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1305.988044][ T10] netdev_get_by_index+0x5e/0x80 [ 1305.988044][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1305.988044][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1305.988044][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1305.988044][ T10] ipv6_add_addr+0x411/0x2000 [ 1305.988044][ T10] inet6_addr_add+0x30e/0xa40 [ 1305.988044][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1305.988044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1305.988044][ T10] netlink_rcv_skb+0x130/0x360 [ 1305.988044][ T10] netlink_unicast+0x449/0x710 [ 1305.988044][ T10] netlink_sendmsg+0x723/0xbe0 [ 1305.988044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1305.988044][ T10] ___sys_sendmsg+0xee/0x170 [ 1305.988044][ T10] __sys_sendmsg+0xcd/0x170 [ 1305.988044][ T10] do_syscall_64+0xc6/0x1e0 [ 1305.988044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1305.988044][ T10] [ 1305.990092][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1305.990092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1305.990092][ T10] ipv6_find_idev+0x102/0x170 [ 1305.990092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1305.990092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1305.990092][ T10] netlink_rcv_skb+0x130/0x360 [ 1305.990092][ T10] netlink_unicast+0x449/0x710 [ 1305.990092][ T10] netlink_sendmsg+0x723/0xbe0 [ 1305.990092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1305.990092][ T10] ___sys_sendmsg+0xee/0x170 [ 1305.990092][ T10] __sys_sendmsg+0xcd/0x170 [ 1305.990092][ T10] do_syscall_64+0xc6/0x1e0 [ 1305.990092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1305.990092][ T10] [ 1305.991622][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1305.991622][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1305.991622][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1305.991622][ T10] ipv6_find_idev+0x102/0x170 [ 1305.991622][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1305.991622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1305.991622][ T10] netlink_rcv_skb+0x130/0x360 [ 1305.991622][ T10] netlink_unicast+0x449/0x710 [ 1305.991622][ T10] netlink_sendmsg+0x723/0xbe0 [ 1305.991622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1305.991622][ T10] ___sys_sendmsg+0xee/0x170 [ 1305.991622][ T10] __sys_sendmsg+0xcd/0x170 [ 1305.991622][ T10] do_syscall_64+0xc6/0x1e0 [ 1305.991622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1305.991622][ T10] [ 1305.993315][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1305.993598][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1305.993598][ T10] netdev_get_by_index+0x5e/0x80 [ 1305.993598][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1305.993598][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1305.993598][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1305.993598][ T10] ipv6_add_addr+0x411/0x2000 [ 1305.993598][ T10] inet6_addr_add+0x30e/0xa40 [ 1305.993598][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1305.993598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1305.993598][ T10] netlink_rcv_skb+0x130/0x360 [ 1305.993598][ T10] netlink_unicast+0x449/0x710 [ 1305.993598][ T10] netlink_sendmsg+0x723/0xbe0 [ 1305.993598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1305.993598][ T10] ___sys_sendmsg+0xee/0x170 [ 1305.993598][ T10] __sys_sendmsg+0xcd/0x170 [ 1305.993598][ T10] do_syscall_64+0xc6/0x1e0 [ 1305.993598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1305.993598][ T10] [ 1305.995608][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1305.995608][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1305.995608][ T10] ipv6_find_idev+0x102/0x170 [ 1305.995608][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1305.995608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1305.995608][ T10] netlink_rcv_skb+0x130/0x360 [ 1305.995608][ T10] netlink_unicast+0x449/0x710 [ 1305.995608][ T10] netlink_sendmsg+0x723/0xbe0 [ 1305.995608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1305.995608][ T10] ___sys_sendmsg+0xee/0x170 [ 1305.995608][ T10] __sys_sendmsg+0xcd/0x170 [ 1305.995608][ T10] do_syscall_64+0xc6/0x1e0 [ 1305.995608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1305.995608][ T10] [ 1305.997148][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1305.997148][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1305.997148][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1305.997148][ T10] ipv6_find_idev+0x102/0x170 [ 1305.997148][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1305.997148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1305.997148][ T10] netlink_rcv_skb+0x130/0x360 [ 1305.997148][ T10] netlink_unicast+0x449/0x710 [ 1305.997148][ T10] netlink_sendmsg+0x723/0xbe0 [ 1305.997148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1305.997148][ T10] ___sys_sendmsg+0xee/0x170 [ 1305.997148][ T10] __sys_sendmsg+0xcd/0x170 [ 1305.997148][ T10] do_syscall_64+0xc6/0x1e0 [ 1305.997148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1305.997148][ T10] [ 1305.998910][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1305.999189][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1305.999189][ T10] netdev_get_by_index+0x5e/0x80 [ 1305.999189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1305.999189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1305.999189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1305.999189][ T10] ipv6_add_addr+0x411/0x2000 [ 1305.999189][ T10] inet6_addr_add+0x30e/0xa40 [ 1305.999189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1305.999189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1305.999189][ T10] netlink_rcv_skb+0x130/0x360 [ 1305.999189][ T10] netlink_unicast+0x449/0x710 [ 1305.999189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1305.999189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1305.999189][ T10] ___sys_sendmsg+0xee/0x170 [ 1305.999189][ T10] __sys_sendmsg+0xcd/0x170 [ 1305.999189][ T10] do_syscall_64+0xc6/0x1e0 [ 1305.999189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1305.999189][ T10] [ 1306.001183][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1306.001183][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1306.001183][ T10] ipv6_find_idev+0x102/0x170 [ 1306.001183][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.001183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.001183][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.001183][ T10] netlink_unicast+0x449/0x710 [ 1306.001183][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.001183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.001183][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.001183][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.001183][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.001183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.001183][ T10] [ 1306.002711][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1306.002711][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1306.002711][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1306.002711][ T10] ipv6_find_idev+0x102/0x170 [ 1306.002711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.002711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.002711][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.002711][ T10] netlink_unicast+0x449/0x710 [ 1306.002711][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.002711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.002711][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.002711][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.002711][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.002711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.002711][ T10] [ 1306.004408][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1306.004693][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1306.004693][ T10] netdev_get_by_index+0x5e/0x80 [ 1306.004693][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1306.004693][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1306.004693][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1306.004693][ T10] ipv6_add_addr+0x411/0x2000 [ 1306.004693][ T10] inet6_addr_add+0x30e/0xa40 [ 1306.004693][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1306.004693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.004693][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.004693][ T10] netlink_unicast+0x449/0x710 [ 1306.004693][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.004693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.004693][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.004693][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.004693][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.004693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.004693][ T10] [ 1306.006701][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1306.006701][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1306.006701][ T10] ipv6_find_idev+0x102/0x170 [ 1306.006701][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.006701][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.006701][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.006701][ T10] netlink_unicast+0x449/0x710 [ 1306.006701][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.006701][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.006701][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.006701][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.006701][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.006701][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.006701][ T10] [ 1306.008250][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1306.008250][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1306.008250][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1306.008250][ T10] ipv6_find_idev+0x102/0x170 [ 1306.008250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.008250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.008250][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.008250][ T10] netlink_unicast+0x449/0x710 [ 1306.008250][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.008250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.008250][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.008250][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.008250][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.008250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.008250][ T10] [ 1306.009960][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1306.010229][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1306.010229][ T10] netdev_get_by_index+0x5e/0x80 [ 1306.010229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1306.010229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1306.010229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1306.010229][ T10] ipv6_add_addr+0x411/0x2000 [ 1306.010229][ T10] inet6_addr_add+0x30e/0xa40 [ 1306.010229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1306.010229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.010229][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.010229][ T10] netlink_unicast+0x449/0x710 [ 1306.010229][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.010229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.010229][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.010229][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.010229][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.010229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.010229][ T10] [ 1306.012247][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1306.012247][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1306.012247][ T10] ipv6_find_idev+0x102/0x170 [ 1306.012247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.012247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.012247][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.012247][ T10] netlink_unicast+0x449/0x710 [ 1306.012247][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.012247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.012247][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.012247][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.012247][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.012247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.012247][ T10] [ 1306.013890][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1306.013890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1306.013890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1306.013890][ T10] ipv6_find_idev+0x102/0x170 [ 1306.013890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.013890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.013890][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.013890][ T10] netlink_unicast+0x449/0x710 [ 1306.013890][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.013890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.013890][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.013890][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.013890][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.013890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.013890][ T10] [ 1306.015854][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1306.016134][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1306.016134][ T10] netdev_get_by_index+0x5e/0x80 [ 1306.016134][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1306.016134][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1306.016134][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1306.016134][ T10] ipv6_add_addr+0x411/0x2000 [ 1306.016134][ T10] inet6_addr_add+0x30e/0xa40 [ 1306.016134][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1306.016134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.016134][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.016134][ T10] netlink_unicast+0x449/0x710 [ 1306.016134][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.016134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.016134][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.016134][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.016134][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.016134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.016134][ T10] [ 1306.018429][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1306.018429][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1306.018429][ T10] ipv6_find_idev+0x102/0x170 [ 1306.018429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.018429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.018429][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.018429][ T10] netlink_unicast+0x449/0x710 [ 1306.018429][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.018429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.018429][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.018429][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.018429][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.018429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.018429][ T10] [ 1306.020128][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1306.020128][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1306.020128][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1306.020128][ T10] ipv6_find_idev+0x102/0x170 [ 1306.020128][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.020128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.020128][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.020128][ T10] netlink_unicast+0x449/0x710 [ 1306.020128][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.020128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.020128][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.020128][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.020128][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.020128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.020128][ T10] [ 1306.022777][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1306.023535][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1306.023535][ T10] netdev_get_by_index+0x5e/0x80 [ 1306.023535][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1306.023535][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1306.023535][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1306.023535][ T10] ipv6_add_addr+0x411/0x2000 [ 1306.023535][ T10] inet6_addr_add+0x30e/0xa40 [ 1306.023535][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1306.023535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.023535][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.023535][ T10] netlink_unicast+0x449/0x710 [ 1306.023535][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.023535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.023535][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.023535][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.023535][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.023535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.023535][ T10] [ 1306.025538][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1306.025538][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1306.025538][ T10] ipv6_find_idev+0x102/0x170 [ 1306.025538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.025538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.025538][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.025538][ T10] netlink_unicast+0x449/0x710 [ 1306.025538][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.025538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.025538][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.025538][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.025538][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.025538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.025538][ T10] [ 1306.027082][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1306.027082][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1306.027082][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1306.027082][ T10] ipv6_find_idev+0x102/0x170 [ 1306.027082][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.027082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.027082][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.027082][ T10] netlink_unicast+0x449/0x710 [ 1306.027082][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.027082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.027082][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.027082][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.027082][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.027082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.027082][ T10] [ 1306.028819][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1306.029094][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1306.029094][ T10] netdev_get_by_index+0x5e/0x80 [ 1306.029094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1306.029094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1306.029094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1306.029094][ T10] ipv6_add_addr+0x411/0x2000 [ 1306.029094][ T10] inet6_addr_add+0x30e/0xa40 [ 1306.029094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1306.029094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.029094][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.029094][ T10] netlink_unicast+0x449/0x710 [ 1306.029094][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.029094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.029094][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.029094][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.029094][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.029094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.029094][ T10] [ 1306.031173][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1306.031173][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1306.031173][ T10] ipv6_find_idev+0x102/0x170 [ 1306.031173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.031173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.031173][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.031173][ T10] netlink_unicast+0x449/0x710 [ 1306.031173][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.031173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.031173][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.031173][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.031173][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.031173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.031173][ T10] [ 1306.032944][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1306.032944][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1306.032944][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1306.032944][ T10] ipv6_find_idev+0x102/0x170 [ 1306.032944][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1306.032944][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1306.032944][ T10] netlink_rcv_skb+0x130/0x360 [ 1306.032944][ T10] netlink_unicast+0x449/0x710 [ 1306.032944][ T10] netlink_sendmsg+0x723/0xbe0 [ 1306.032944][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1306.032944][ T10] ___sys_sendmsg+0xee/0x170 [ 1306.032944][ T10] __sys_sendmsg+0xcd/0x170 [ 1306.032944][ T10] do_syscall_64+0xc6/0x1e0 [ 1306.032944][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1306.032944][ T10] [ 1316.148682][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1316.149160][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1316.149160][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.149160][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.149160][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.149160][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.149160][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.149160][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.149160][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.149160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.149160][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.149160][ T10] netlink_unicast+0x449/0x710 [ 1316.149160][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.149160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.149160][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.149160][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.149160][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.149160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.149160][ T10] [ 1316.151290][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1316.151290][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.151290][ T10] ipv6_find_idev+0x102/0x170 [ 1316.151290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.151290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.151290][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.151290][ T10] netlink_unicast+0x449/0x710 [ 1316.151290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.151290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.151290][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.151290][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.151290][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.151290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.151290][ T10] [ 1316.152918][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1316.152918][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.152918][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.152918][ T10] ipv6_find_idev+0x102/0x170 [ 1316.152918][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.152918][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.152918][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.152918][ T10] netlink_unicast+0x449/0x710 [ 1316.152918][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.152918][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.152918][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.152918][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.152918][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.152918][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.152918][ T10] [ 1316.154657][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1316.154940][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1316.154940][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.154940][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.154940][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.154940][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.154940][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.154940][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.154940][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.154940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.154940][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.154940][ T10] netlink_unicast+0x449/0x710 [ 1316.154940][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.154940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.154940][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.154940][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.154940][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.154940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.154940][ T10] [ 1316.156969][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1316.156969][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.156969][ T10] ipv6_find_idev+0x102/0x170 [ 1316.156969][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.156969][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.156969][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.156969][ T10] netlink_unicast+0x449/0x710 [ 1316.156969][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.156969][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.156969][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.156969][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.156969][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.156969][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.156969][ T10] [ 1316.158541][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1316.158541][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.158541][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.158541][ T10] ipv6_find_idev+0x102/0x170 [ 1316.158541][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.158541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.158541][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.158541][ T10] netlink_unicast+0x449/0x710 [ 1316.158541][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.158541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.158541][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.158541][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.158541][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.158541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.158541][ T10] [ 1316.160255][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1316.160552][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1316.160552][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.160552][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.160552][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.160552][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.160552][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.160552][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.160552][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.160552][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.160552][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.160552][ T10] netlink_unicast+0x449/0x710 [ 1316.160552][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.160552][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.160552][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.160552][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.160552][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.160552][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.160552][ T10] [ 1316.162582][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1316.162582][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.162582][ T10] ipv6_find_idev+0x102/0x170 [ 1316.162582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.162582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.162582][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.162582][ T10] netlink_unicast+0x449/0x710 [ 1316.162582][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.162582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.162582][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.162582][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.162582][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.162582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.162582][ T10] [ 1316.164133][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1316.164133][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.164133][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.164133][ T10] ipv6_find_idev+0x102/0x170 [ 1316.164133][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.164133][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.164133][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.164133][ T10] netlink_unicast+0x449/0x710 [ 1316.164133][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.164133][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.164133][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.164133][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.164133][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.164133][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.164133][ T10] [ 1316.165833][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1316.166112][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1316.166112][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.166112][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.166112][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.166112][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.166112][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.166112][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.166112][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.166112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.166112][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.166112][ T10] netlink_unicast+0x449/0x710 [ 1316.166112][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.166112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.166112][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.166112][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.166112][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.166112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.166112][ T10] [ 1316.168127][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1316.168127][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.168127][ T10] ipv6_find_idev+0x102/0x170 [ 1316.168127][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.168127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.168127][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.168127][ T10] netlink_unicast+0x449/0x710 [ 1316.168127][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.168127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.168127][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.168127][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.168127][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.168127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.168127][ T10] [ 1316.169727][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1316.169727][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.169727][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.169727][ T10] ipv6_find_idev+0x102/0x170 [ 1316.169727][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.169727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.169727][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.169727][ T10] netlink_unicast+0x449/0x710 [ 1316.169727][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.169727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.169727][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.169727][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.169727][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.169727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.169727][ T10] [ 1316.171433][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1316.171717][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1316.171717][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.171717][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.171717][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.171717][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.171717][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.171717][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.171717][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.171717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.171717][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.171717][ T10] netlink_unicast+0x449/0x710 [ 1316.171717][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.171717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.171717][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.171717][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.171717][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.171717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.171717][ T10] [ 1316.173756][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1316.173756][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.173756][ T10] ipv6_find_idev+0x102/0x170 [ 1316.173756][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.173756][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.173756][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.173756][ T10] netlink_unicast+0x449/0x710 [ 1316.173756][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.173756][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.173756][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.173756][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.173756][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.173756][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.173756][ T10] [ 1316.175458][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1316.175458][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.175458][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.175458][ T10] ipv6_find_idev+0x102/0x170 [ 1316.175458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.175458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.175458][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.175458][ T10] netlink_unicast+0x449/0x710 [ 1316.175458][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.175458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.175458][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.175458][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.175458][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.175458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.175458][ T10] [ 1316.177369][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1316.177641][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1316.177641][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.177641][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.177641][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.177641][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.177641][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.177641][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.177641][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.177641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.177641][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.177641][ T10] netlink_unicast+0x449/0x710 [ 1316.177641][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.177641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.177641][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.177641][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.177641][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.177641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.177641][ T10] [ 1316.180005][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1316.180005][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.180005][ T10] ipv6_find_idev+0x102/0x170 [ 1316.180005][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.180005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.180005][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.180005][ T10] netlink_unicast+0x449/0x710 [ 1316.180005][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.180005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.180005][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.180005][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.180005][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.180005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.180005][ T10] [ 1316.181760][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1316.181760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.181760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.181760][ T10] ipv6_find_idev+0x102/0x170 [ 1316.181760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.181760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.181760][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.181760][ T10] netlink_unicast+0x449/0x710 [ 1316.181760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.181760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.181760][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.181760][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.181760][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.181760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.181760][ T10] [ 1316.183773][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1316.184045][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1316.184045][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.184045][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.184045][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.184045][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.184045][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.184045][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.184045][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.184045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.184045][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.184045][ T10] netlink_unicast+0x449/0x710 [ 1316.184045][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.184045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.184045][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.184045][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.184045][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.184045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.184045][ T10] [ 1316.186146][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1316.186146][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.186146][ T10] ipv6_find_idev+0x102/0x170 [ 1316.186146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.186146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.186146][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.186146][ T10] netlink_unicast+0x449/0x710 [ 1316.186146][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.186146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.186146][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.186146][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.186146][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.186146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.186146][ T10] [ 1316.187977][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1316.187977][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.187977][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.187977][ T10] ipv6_find_idev+0x102/0x170 [ 1316.187977][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.187977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.187977][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.187977][ T10] netlink_unicast+0x449/0x710 [ 1316.187977][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.187977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.187977][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.187977][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.187977][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.187977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.187977][ T10] [ 1316.189923][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1316.190186][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1316.190186][ T10] netdev_get_by_index+0x5e/0x80 [ 1316.190186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1316.190186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1316.190186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1316.190186][ T10] ipv6_add_addr+0x411/0x2000 [ 1316.190186][ T10] inet6_addr_add+0x30e/0xa40 [ 1316.190186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1316.190186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.190186][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.190186][ T10] netlink_unicast+0x449/0x710 [ 1316.190186][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.190186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.190186][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.190186][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.190186][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.190186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.190186][ T10] [ 1316.192317][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1316.192317][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1316.192317][ T10] ipv6_find_idev+0x102/0x170 [ 1316.192317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.192317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.192317][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.192317][ T10] netlink_unicast+0x449/0x710 [ 1316.192317][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.192317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.192317][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.192317][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.192317][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.192317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.192317][ T10] [ 1316.194078][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1316.194078][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1316.194078][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1316.194078][ T10] ipv6_find_idev+0x102/0x170 [ 1316.194078][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1316.194078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1316.194078][ T10] netlink_rcv_skb+0x130/0x360 [ 1316.194078][ T10] netlink_unicast+0x449/0x710 [ 1316.194078][ T10] netlink_sendmsg+0x723/0xbe0 [ 1316.194078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1316.194078][ T10] ___sys_sendmsg+0xee/0x170 [ 1316.194078][ T10] __sys_sendmsg+0xcd/0x170 [ 1316.194078][ T10] do_syscall_64+0xc6/0x1e0 [ 1316.194078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1316.194078][ T10] [ 1326.283769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1326.284211][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1326.284211][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.284211][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.284211][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.284211][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.284211][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.284211][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.284211][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.284211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.284211][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.284211][ T10] netlink_unicast+0x449/0x710 [ 1326.284211][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.284211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.284211][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.284211][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.284211][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.284211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.284211][ T10] [ 1326.286298][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1326.286298][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.286298][ T10] ipv6_find_idev+0x102/0x170 [ 1326.286298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.286298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.286298][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.286298][ T10] netlink_unicast+0x449/0x710 [ 1326.286298][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.286298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.286298][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.286298][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.286298][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.286298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.286298][ T10] [ 1326.287882][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1326.287882][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.287882][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.287882][ T10] ipv6_find_idev+0x102/0x170 [ 1326.287882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.287882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.287882][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.287882][ T10] netlink_unicast+0x449/0x710 [ 1326.287882][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.287882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.287882][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.287882][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.287882][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.287882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.287882][ T10] [ 1326.289596][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1326.289901][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1326.289901][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.289901][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.289901][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.289901][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.289901][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.289901][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.289901][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.289901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.289901][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.289901][ T10] netlink_unicast+0x449/0x710 [ 1326.289901][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.289901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.289901][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.289901][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.289901][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.289901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.289901][ T10] [ 1326.291917][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1326.291917][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.291917][ T10] ipv6_find_idev+0x102/0x170 [ 1326.291917][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.291917][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.291917][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.291917][ T10] netlink_unicast+0x449/0x710 [ 1326.291917][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.291917][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.291917][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.291917][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.291917][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.291917][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.291917][ T10] [ 1326.293465][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1326.293465][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.293465][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.293465][ T10] ipv6_find_idev+0x102/0x170 [ 1326.293465][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.293465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.293465][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.293465][ T10] netlink_unicast+0x449/0x710 [ 1326.293465][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.293465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.293465][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.293465][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.293465][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.293465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.293465][ T10] [ 1326.295170][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1326.295446][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1326.295446][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.295446][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.295446][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.295446][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.295446][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.295446][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.295446][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.295446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.295446][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.295446][ T10] netlink_unicast+0x449/0x710 [ 1326.295446][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.295446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.295446][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.295446][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.295446][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.295446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.295446][ T10] [ 1326.297425][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1326.297425][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.297425][ T10] ipv6_find_idev+0x102/0x170 [ 1326.297425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.297425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.297425][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.297425][ T10] netlink_unicast+0x449/0x710 [ 1326.297425][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.297425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.297425][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.297425][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.297425][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.297425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.297425][ T10] [ 1326.298944][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1326.298944][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.298944][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.298944][ T10] ipv6_find_idev+0x102/0x170 [ 1326.298944][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.298944][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.298944][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.298944][ T10] netlink_unicast+0x449/0x710 [ 1326.298944][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.298944][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.298944][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.298944][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.298944][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.298944][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.298944][ T10] [ 1326.300605][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1326.301335][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1326.301335][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.301335][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.301335][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.301335][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.301335][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.301335][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.301335][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.301335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.301335][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.301335][ T10] netlink_unicast+0x449/0x710 [ 1326.301335][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.301335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.301335][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.301335][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.301335][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.301335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.301335][ T10] [ 1326.303298][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1326.303298][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.303298][ T10] ipv6_find_idev+0x102/0x170 [ 1326.303298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.303298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.303298][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.303298][ T10] netlink_unicast+0x449/0x710 [ 1326.303298][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.303298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.303298][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.303298][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.303298][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.303298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.303298][ T10] [ 1326.304842][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1326.304842][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.304842][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.304842][ T10] ipv6_find_idev+0x102/0x170 [ 1326.304842][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.304842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.304842][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.304842][ T10] netlink_unicast+0x449/0x710 [ 1326.304842][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.304842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.304842][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.304842][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.304842][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.304842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.304842][ T10] [ 1326.306548][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1326.306870][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1326.306870][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.306870][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.306870][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.306870][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.306870][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.306870][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.306870][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.306870][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.306870][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.306870][ T10] netlink_unicast+0x449/0x710 [ 1326.306870][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.306870][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.306870][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.306870][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.306870][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.306870][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.306870][ T10] [ 1326.308841][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1326.308841][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.308841][ T10] ipv6_find_idev+0x102/0x170 [ 1326.308841][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.308841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.308841][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.308841][ T10] netlink_unicast+0x449/0x710 [ 1326.308841][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.308841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.308841][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.308841][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.308841][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.308841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.308841][ T10] [ 1326.310363][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1326.310363][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.310363][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.310363][ T10] ipv6_find_idev+0x102/0x170 [ 1326.310363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.310363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.310363][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.310363][ T10] netlink_unicast+0x449/0x710 [ 1326.310363][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.310363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.310363][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.310363][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.310363][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.310363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.310363][ T10] [ 1326.312068][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1326.312331][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1326.312331][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.312331][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.312331][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.312331][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.312331][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.312331][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.312331][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.312331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.312331][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.312331][ T10] netlink_unicast+0x449/0x710 [ 1326.312331][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.312331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.312331][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.312331][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.312331][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.312331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.312331][ T10] [ 1326.314385][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1326.314385][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.314385][ T10] ipv6_find_idev+0x102/0x170 [ 1326.314385][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.314385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.314385][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.314385][ T10] netlink_unicast+0x449/0x710 [ 1326.314385][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.314385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.314385][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.314385][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.314385][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.314385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.314385][ T10] [ 1326.316170][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1326.316170][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.316170][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.316170][ T10] ipv6_find_idev+0x102/0x170 [ 1326.316170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.316170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.316170][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.316170][ T10] netlink_unicast+0x449/0x710 [ 1326.316170][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.316170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.316170][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.316170][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.316170][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.316170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.316170][ T10] [ 1326.318015][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1326.318290][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1326.318290][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.318290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.318290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.318290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.318290][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.318290][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.318290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.318290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.318290][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.318290][ T10] netlink_unicast+0x449/0x710 [ 1326.318290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.318290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.318290][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.318290][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.318290][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.318290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.318290][ T10] [ 1326.320473][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1326.320473][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.320473][ T10] ipv6_find_idev+0x102/0x170 [ 1326.320473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.320473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.320473][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.320473][ T10] netlink_unicast+0x449/0x710 [ 1326.320473][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.320473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.320473][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.320473][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.320473][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.320473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.320473][ T10] [ 1326.322168][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1326.322168][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.322168][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.322168][ T10] ipv6_find_idev+0x102/0x170 [ 1326.322168][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.322168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.322168][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.322168][ T10] netlink_unicast+0x449/0x710 [ 1326.322168][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.322168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.322168][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.322168][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.322168][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.322168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.322168][ T10] [ 1326.323992][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1326.324249][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1326.324249][ T10] netdev_get_by_index+0x5e/0x80 [ 1326.324249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1326.324249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1326.324249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1326.324249][ T10] ipv6_add_addr+0x411/0x2000 [ 1326.324249][ T10] inet6_addr_add+0x30e/0xa40 [ 1326.324249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1326.324249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.324249][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.324249][ T10] netlink_unicast+0x449/0x710 [ 1326.324249][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.324249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.324249][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.324249][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.324249][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.324249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.324249][ T10] [ 1326.326473][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1326.326473][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1326.326473][ T10] ipv6_find_idev+0x102/0x170 [ 1326.326473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.326473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.326473][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.326473][ T10] netlink_unicast+0x449/0x710 [ 1326.326473][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.326473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.326473][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.326473][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.326473][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.326473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.326473][ T10] [ 1326.328102][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1326.328102][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1326.328102][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1326.328102][ T10] ipv6_find_idev+0x102/0x170 [ 1326.328102][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1326.328102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1326.328102][ T10] netlink_rcv_skb+0x130/0x360 [ 1326.328102][ T10] netlink_unicast+0x449/0x710 [ 1326.328102][ T10] netlink_sendmsg+0x723/0xbe0 [ 1326.328102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1326.328102][ T10] ___sys_sendmsg+0xee/0x170 [ 1326.328102][ T10] __sys_sendmsg+0xcd/0x170 [ 1326.328102][ T10] do_syscall_64+0xc6/0x1e0 [ 1326.328102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1326.328102][ T10] [ 1336.379802][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1336.380202][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1336.380202][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.380202][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.380202][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.380202][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.380202][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.380202][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.380202][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.380202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.380202][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.380202][ T10] netlink_unicast+0x449/0x710 [ 1336.380202][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.380202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.380202][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.380202][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.380202][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.380202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.380202][ T10] [ 1336.382575][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1336.382575][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.382575][ T10] ipv6_find_idev+0x102/0x170 [ 1336.382575][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.382575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.382575][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.382575][ T10] netlink_unicast+0x449/0x710 [ 1336.382575][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.382575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.382575][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.382575][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.382575][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.382575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.382575][ T10] [ 1336.384408][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1336.384408][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.384408][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.384408][ T10] ipv6_find_idev+0x102/0x170 [ 1336.384408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.384408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.384408][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.384408][ T10] netlink_unicast+0x449/0x710 [ 1336.384408][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.384408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.384408][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.384408][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.384408][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.384408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.384408][ T10] [ 1336.386359][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1336.386671][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1336.386671][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.386671][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.386671][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.386671][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.386671][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.386671][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.386671][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.386671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.386671][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.386671][ T10] netlink_unicast+0x449/0x710 [ 1336.386671][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.386671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.386671][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.386671][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.386671][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.386671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.386671][ T10] [ 1336.388926][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1336.388926][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.388926][ T10] ipv6_find_idev+0x102/0x170 [ 1336.388926][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.388926][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.388926][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.388926][ T10] netlink_unicast+0x449/0x710 [ 1336.388926][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.388926][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.388926][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.388926][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.388926][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.388926][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.388926][ T10] [ 1336.390863][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1336.390863][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.390863][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.390863][ T10] ipv6_find_idev+0x102/0x170 [ 1336.390863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.390863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.390863][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.390863][ T10] netlink_unicast+0x449/0x710 [ 1336.390863][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.390863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.390863][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.390863][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.390863][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.390863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.390863][ T10] [ 1336.393071][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1336.393380][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1336.393380][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.393380][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.393380][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.393380][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.393380][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.393380][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.393380][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.393380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.393380][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.393380][ T10] netlink_unicast+0x449/0x710 [ 1336.393380][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.393380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.393380][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.393380][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.393380][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.393380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.393380][ T10] [ 1336.395760][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1336.395760][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.395760][ T10] ipv6_find_idev+0x102/0x170 [ 1336.395760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.395760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.395760][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.395760][ T10] netlink_unicast+0x449/0x710 [ 1336.395760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.395760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.395760][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.395760][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.395760][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.395760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.395760][ T10] [ 1336.397690][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1336.397690][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.397690][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.397690][ T10] ipv6_find_idev+0x102/0x170 [ 1336.397690][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.397690][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.397690][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.397690][ T10] netlink_unicast+0x449/0x710 [ 1336.397690][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.397690][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.397690][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.397690][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.397690][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.397690][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.397690][ T10] [ 1336.399847][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1336.400153][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1336.400153][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.400153][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.400153][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.400153][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.400153][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.400153][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.400153][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.400153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.400153][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.400153][ T10] netlink_unicast+0x449/0x710 [ 1336.400153][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.400153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.400153][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.400153][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.400153][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.400153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.400153][ T10] [ 1336.402744][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1336.402744][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.402744][ T10] ipv6_find_idev+0x102/0x170 [ 1336.402744][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.402744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.402744][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.402744][ T10] netlink_unicast+0x449/0x710 [ 1336.402744][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.402744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.402744][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.402744][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.402744][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.402744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.402744][ T10] [ 1336.404690][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1336.404690][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.404690][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.404690][ T10] ipv6_find_idev+0x102/0x170 [ 1336.404690][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.404690][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.404690][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.404690][ T10] netlink_unicast+0x449/0x710 [ 1336.404690][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.404690][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.404690][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.404690][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.404690][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.404690][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.404690][ T10] [ 1336.406799][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1336.407176][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1336.407176][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.407176][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.407176][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.407176][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.407176][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.407176][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.407176][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.407176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.407176][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.407176][ T10] netlink_unicast+0x449/0x710 [ 1336.407176][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.407176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.407176][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.407176][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.407176][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.407176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.407176][ T10] [ 1336.409561][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1336.409561][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.409561][ T10] ipv6_find_idev+0x102/0x170 [ 1336.409561][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.409561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.409561][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.409561][ T10] netlink_unicast+0x449/0x710 [ 1336.409561][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.409561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.409561][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.409561][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.409561][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.409561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.409561][ T10] [ 1336.411366][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1336.411366][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.411366][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.411366][ T10] ipv6_find_idev+0x102/0x170 [ 1336.411366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.411366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.411366][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.411366][ T10] netlink_unicast+0x449/0x710 [ 1336.411366][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.411366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.411366][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.411366][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.411366][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.411366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.411366][ T10] [ 1336.413815][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1336.414120][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1336.414120][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.414120][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.414120][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.414120][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.414120][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.414120][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.414120][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.414120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.414120][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.414120][ T10] netlink_unicast+0x449/0x710 [ 1336.414120][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.414120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.414120][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.414120][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.414120][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.414120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.414120][ T10] [ 1336.416547][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1336.416547][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.416547][ T10] ipv6_find_idev+0x102/0x170 [ 1336.416547][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.416547][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.416547][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.416547][ T10] netlink_unicast+0x449/0x710 [ 1336.416547][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.416547][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.416547][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.416547][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.416547][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.416547][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.416547][ T10] [ 1336.418577][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1336.418577][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.418577][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.418577][ T10] ipv6_find_idev+0x102/0x170 [ 1336.418577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.418577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.418577][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.418577][ T10] netlink_unicast+0x449/0x710 [ 1336.418577][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.418577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.418577][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.418577][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.418577][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.418577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.418577][ T10] [ 1336.420871][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1336.421183][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1336.421183][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.421183][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.421183][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.421183][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.421183][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.421183][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.421183][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.421183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.421183][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.421183][ T10] netlink_unicast+0x449/0x710 [ 1336.421183][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.421183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.421183][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.421183][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.421183][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.421183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.421183][ T10] [ 1336.423584][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1336.423584][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.423584][ T10] ipv6_find_idev+0x102/0x170 [ 1336.423584][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.423584][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.423584][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.423584][ T10] netlink_unicast+0x449/0x710 [ 1336.423584][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.423584][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.423584][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.423584][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.423584][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.423584][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.423584][ T10] [ 1336.425367][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1336.425367][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.425367][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.425367][ T10] ipv6_find_idev+0x102/0x170 [ 1336.425367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.425367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.425367][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.425367][ T10] netlink_unicast+0x449/0x710 [ 1336.425367][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.425367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.425367][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.425367][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.425367][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.425367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.425367][ T10] [ 1336.427388][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1336.427696][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1336.427696][ T10] netdev_get_by_index+0x5e/0x80 [ 1336.427696][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1336.427696][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1336.427696][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1336.427696][ T10] ipv6_add_addr+0x411/0x2000 [ 1336.427696][ T10] inet6_addr_add+0x30e/0xa40 [ 1336.427696][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1336.427696][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.427696][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.427696][ T10] netlink_unicast+0x449/0x710 [ 1336.427696][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.427696][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.427696][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.427696][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.427696][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.427696][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.427696][ T10] [ 1336.430248][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1336.430248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1336.430248][ T10] ipv6_find_idev+0x102/0x170 [ 1336.430248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.430248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.430248][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.430248][ T10] netlink_unicast+0x449/0x710 [ 1336.430248][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.430248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.430248][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.430248][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.430248][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.430248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.430248][ T10] [ 1336.432231][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1336.432231][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1336.432231][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1336.432231][ T10] ipv6_find_idev+0x102/0x170 [ 1336.432231][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1336.432231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1336.432231][ T10] netlink_rcv_skb+0x130/0x360 [ 1336.432231][ T10] netlink_unicast+0x449/0x710 [ 1336.432231][ T10] netlink_sendmsg+0x723/0xbe0 [ 1336.432231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1336.432231][ T10] ___sys_sendmsg+0xee/0x170 [ 1336.432231][ T10] __sys_sendmsg+0xcd/0x170 [ 1336.432231][ T10] do_syscall_64+0xc6/0x1e0 [ 1336.432231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1336.432231][ T10] [ 1346.556665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1346.557038][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1346.557038][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.557038][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.557038][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.557038][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.557038][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.557038][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.557038][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.557038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.557038][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.557038][ T10] netlink_unicast+0x449/0x710 [ 1346.557038][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.557038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.557038][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.557038][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.557038][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.557038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.557038][ T10] [ 1346.559426][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1346.559426][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.559426][ T10] ipv6_find_idev+0x102/0x170 [ 1346.559426][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.559426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.559426][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.559426][ T10] netlink_unicast+0x449/0x710 [ 1346.559426][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.559426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.559426][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.559426][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.559426][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.559426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.559426][ T10] [ 1346.561222][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1346.561222][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.561222][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.561222][ T10] ipv6_find_idev+0x102/0x170 [ 1346.561222][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.561222][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.561222][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.561222][ T10] netlink_unicast+0x449/0x710 [ 1346.561222][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.561222][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.561222][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.561222][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.561222][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.561222][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.561222][ T10] [ 1346.563202][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1346.563522][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1346.563522][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.563522][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.563522][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.563522][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.563522][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.563522][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.563522][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.563522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.563522][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.563522][ T10] netlink_unicast+0x449/0x710 [ 1346.563522][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.563522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.563522][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.563522][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.563522][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.563522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.563522][ T10] [ 1346.565771][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1346.565771][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.565771][ T10] ipv6_find_idev+0x102/0x170 [ 1346.565771][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.565771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.565771][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.565771][ T10] netlink_unicast+0x449/0x710 [ 1346.565771][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.565771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.565771][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.565771][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.565771][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.565771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.565771][ T10] [ 1346.567553][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1346.567553][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.567553][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.567553][ T10] ipv6_find_idev+0x102/0x170 [ 1346.567553][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.567553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.567553][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.567553][ T10] netlink_unicast+0x449/0x710 [ 1346.567553][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.567553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.567553][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.567553][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.567553][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.567553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.567553][ T10] [ 1346.569502][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1346.569819][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1346.569819][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.569819][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.569819][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.569819][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.569819][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.569819][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.569819][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.569819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.569819][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.569819][ T10] netlink_unicast+0x449/0x710 [ 1346.569819][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.569819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.569819][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.569819][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.569819][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.569819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.569819][ T10] [ 1346.572130][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1346.572130][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.572130][ T10] ipv6_find_idev+0x102/0x170 [ 1346.572130][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.572130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.572130][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.572130][ T10] netlink_unicast+0x449/0x710 [ 1346.572130][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.572130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.572130][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.572130][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.572130][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.572130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.572130][ T10] [ 1346.573947][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1346.573947][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.573947][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.573947][ T10] ipv6_find_idev+0x102/0x170 [ 1346.573947][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.573947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.573947][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.573947][ T10] netlink_unicast+0x449/0x710 [ 1346.573947][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.573947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.573947][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.573947][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.573947][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.573947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.573947][ T10] [ 1346.575883][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1346.576195][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1346.576195][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.576195][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.576195][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.576195][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.576195][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.576195][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.576195][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.576195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.576195][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.576195][ T10] netlink_unicast+0x449/0x710 [ 1346.576195][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.576195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.576195][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.576195][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.576195][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.576195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.576195][ T10] [ 1346.578714][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1346.578714][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.578714][ T10] ipv6_find_idev+0x102/0x170 [ 1346.578714][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.578714][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.578714][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.578714][ T10] netlink_unicast+0x449/0x710 [ 1346.578714][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.578714][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.578714][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.578714][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.578714][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.578714][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.578714][ T10] [ 1346.580684][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1346.580684][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.580684][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.580684][ T10] ipv6_find_idev+0x102/0x170 [ 1346.580684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.580684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.580684][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.580684][ T10] netlink_unicast+0x449/0x710 [ 1346.580684][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.580684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.580684][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.580684][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.580684][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.580684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.580684][ T10] [ 1346.583231][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1346.583558][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1346.583558][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.583558][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.583558][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.583558][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.583558][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.583558][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.583558][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.583558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.583558][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.583558][ T10] netlink_unicast+0x449/0x710 [ 1346.583558][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.583558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.583558][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.583558][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.583558][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.583558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.583558][ T10] [ 1346.586023][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1346.586023][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.586023][ T10] ipv6_find_idev+0x102/0x170 [ 1346.586023][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.586023][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.586023][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.586023][ T10] netlink_unicast+0x449/0x710 [ 1346.586023][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.586023][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.586023][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.586023][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.586023][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.586023][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.586023][ T10] [ 1346.588025][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1346.588025][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.588025][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.588025][ T10] ipv6_find_idev+0x102/0x170 [ 1346.588025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.588025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.588025][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.588025][ T10] netlink_unicast+0x449/0x710 [ 1346.588025][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.588025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.588025][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.588025][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.588025][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.588025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.588025][ T10] [ 1346.590448][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1346.590844][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1346.590844][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.590844][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.590844][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.590844][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.590844][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.590844][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.590844][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.590844][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.590844][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.590844][ T10] netlink_unicast+0x449/0x710 [ 1346.590844][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.590844][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.590844][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.590844][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.590844][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.590844][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.590844][ T10] [ 1346.593355][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1346.593355][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.593355][ T10] ipv6_find_idev+0x102/0x170 [ 1346.593355][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.593355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.593355][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.593355][ T10] netlink_unicast+0x449/0x710 [ 1346.593355][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.593355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.593355][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.593355][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.593355][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.593355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.593355][ T10] [ 1346.595473][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1346.595473][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.595473][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.595473][ T10] ipv6_find_idev+0x102/0x170 [ 1346.595473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.595473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.595473][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.595473][ T10] netlink_unicast+0x449/0x710 [ 1346.595473][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.595473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.595473][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.595473][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.595473][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.595473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.595473][ T10] [ 1346.597937][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1346.598271][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1346.598271][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.598271][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.598271][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.598271][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.598271][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.598271][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.598271][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.598271][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.598271][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.598271][ T10] netlink_unicast+0x449/0x710 [ 1346.598271][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.598271][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.598271][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.598271][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.598271][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.598271][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.598271][ T10] [ 1346.600857][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1346.600857][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.600857][ T10] ipv6_find_idev+0x102/0x170 [ 1346.600857][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.600857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.600857][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.600857][ T10] netlink_unicast+0x449/0x710 [ 1346.600857][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.600857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.600857][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.600857][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.600857][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.600857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.600857][ T10] [ 1346.602813][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1346.602813][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.602813][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.602813][ T10] ipv6_find_idev+0x102/0x170 [ 1346.602813][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.602813][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.602813][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.602813][ T10] netlink_unicast+0x449/0x710 [ 1346.602813][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.602813][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.602813][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.602813][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.602813][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.602813][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.602813][ T10] [ 1346.605216][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1346.605539][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1346.605539][ T10] netdev_get_by_index+0x5e/0x80 [ 1346.605539][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1346.605539][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1346.605539][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1346.605539][ T10] ipv6_add_addr+0x411/0x2000 [ 1346.605539][ T10] inet6_addr_add+0x30e/0xa40 [ 1346.605539][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1346.605539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.605539][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.605539][ T10] netlink_unicast+0x449/0x710 [ 1346.605539][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.605539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.605539][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.605539][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.605539][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.605539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.605539][ T10] [ 1346.608334][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1346.608334][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1346.608334][ T10] ipv6_find_idev+0x102/0x170 [ 1346.608334][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.608334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.608334][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.608334][ T10] netlink_unicast+0x449/0x710 [ 1346.608334][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.608334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.608334][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.608334][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.608334][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.608334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.608334][ T10] [ 1346.610508][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1346.610508][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1346.610508][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1346.610508][ T10] ipv6_find_idev+0x102/0x170 [ 1346.610508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1346.610508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1346.610508][ T10] netlink_rcv_skb+0x130/0x360 [ 1346.610508][ T10] netlink_unicast+0x449/0x710 [ 1346.610508][ T10] netlink_sendmsg+0x723/0xbe0 [ 1346.610508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1346.610508][ T10] ___sys_sendmsg+0xee/0x170 [ 1346.610508][ T10] __sys_sendmsg+0xcd/0x170 [ 1346.610508][ T10] do_syscall_64+0xc6/0x1e0 [ 1346.610508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1346.610508][ T10] [ 1356.723714][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1356.724169][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1356.724169][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.724169][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.724169][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.724169][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.724169][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.724169][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.724169][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.724169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.724169][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.724169][ T10] netlink_unicast+0x449/0x710 [ 1356.724169][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.724169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.724169][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.724169][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.724169][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.724169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.724169][ T10] [ 1356.726330][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1356.726330][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.726330][ T10] ipv6_find_idev+0x102/0x170 [ 1356.726330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.726330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.726330][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.726330][ T10] netlink_unicast+0x449/0x710 [ 1356.726330][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.726330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.726330][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.726330][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.726330][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.726330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.726330][ T10] [ 1356.727944][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1356.727944][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.727944][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.727944][ T10] ipv6_find_idev+0x102/0x170 [ 1356.727944][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.727944][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.727944][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.727944][ T10] netlink_unicast+0x449/0x710 [ 1356.727944][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.727944][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.727944][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.727944][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.727944][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.727944][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.727944][ T10] [ 1356.729753][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1356.730052][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1356.730052][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.730052][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.730052][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.730052][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.730052][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.730052][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.730052][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.730052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.730052][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.730052][ T10] netlink_unicast+0x449/0x710 [ 1356.730052][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.730052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.730052][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.730052][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.730052][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.730052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.730052][ T10] [ 1356.732217][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1356.732217][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.732217][ T10] ipv6_find_idev+0x102/0x170 [ 1356.732217][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.732217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.732217][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.732217][ T10] netlink_unicast+0x449/0x710 [ 1356.732217][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.732217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.732217][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.732217][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.732217][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.732217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.732217][ T10] [ 1356.733919][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1356.733919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.733919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.733919][ T10] ipv6_find_idev+0x102/0x170 [ 1356.733919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.733919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.733919][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.733919][ T10] netlink_unicast+0x449/0x710 [ 1356.733919][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.733919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.733919][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.733919][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.733919][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.733919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.733919][ T10] [ 1356.735737][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1356.736039][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1356.736039][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.736039][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.736039][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.736039][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.736039][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.736039][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.736039][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.736039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.736039][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.736039][ T10] netlink_unicast+0x449/0x710 [ 1356.736039][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.736039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.736039][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.736039][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.736039][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.736039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.736039][ T10] [ 1356.738194][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1356.738194][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.738194][ T10] ipv6_find_idev+0x102/0x170 [ 1356.738194][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.738194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.738194][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.738194][ T10] netlink_unicast+0x449/0x710 [ 1356.738194][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.738194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.738194][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.738194][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.738194][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.738194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.738194][ T10] [ 1356.739865][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1356.739865][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.739865][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.739865][ T10] ipv6_find_idev+0x102/0x170 [ 1356.739865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.739865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.739865][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.739865][ T10] netlink_unicast+0x449/0x710 [ 1356.739865][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.739865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.739865][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.739865][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.739865][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.739865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.739865][ T10] [ 1356.741697][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1356.741988][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1356.741988][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.741988][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.741988][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.741988][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.741988][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.741988][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.741988][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.741988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.741988][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.741988][ T10] netlink_unicast+0x449/0x710 [ 1356.741988][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.741988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.741988][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.741988][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.741988][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.741988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.741988][ T10] [ 1356.744114][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1356.744114][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.744114][ T10] ipv6_find_idev+0x102/0x170 [ 1356.744114][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.744114][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.744114][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.744114][ T10] netlink_unicast+0x449/0x710 [ 1356.744114][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.744114][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.744114][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.744114][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.744114][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.744114][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.744114][ T10] [ 1356.745717][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1356.745717][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.745717][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.745717][ T10] ipv6_find_idev+0x102/0x170 [ 1356.745717][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.745717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.745717][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.745717][ T10] netlink_unicast+0x449/0x710 [ 1356.745717][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.745717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.745717][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.745717][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.745717][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.745717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.745717][ T10] [ 1356.747889][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1356.748177][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1356.748177][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.748177][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.748177][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.748177][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.748177][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.748177][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.748177][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.748177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.748177][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.748177][ T10] netlink_unicast+0x449/0x710 [ 1356.748177][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.748177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.748177][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.748177][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.748177][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.748177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.748177][ T10] [ 1356.750265][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1356.750265][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.750265][ T10] ipv6_find_idev+0x102/0x170 [ 1356.750265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.750265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.750265][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.750265][ T10] netlink_unicast+0x449/0x710 [ 1356.750265][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.750265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.750265][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.750265][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.750265][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.750265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.750265][ T10] [ 1356.751886][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1356.751886][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.751886][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.751886][ T10] ipv6_find_idev+0x102/0x170 [ 1356.751886][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.751886][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.751886][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.751886][ T10] netlink_unicast+0x449/0x710 [ 1356.751886][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.751886][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.751886][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.751886][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.751886][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.751886][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.751886][ T10] [ 1356.753694][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1356.753970][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1356.753970][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.753970][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.753970][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.753970][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.753970][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.753970][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.753970][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.753970][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.753970][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.753970][ T10] netlink_unicast+0x449/0x710 [ 1356.753970][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.753970][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.753970][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.753970][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.753970][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.753970][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.753970][ T10] [ 1356.756125][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1356.756125][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.756125][ T10] ipv6_find_idev+0x102/0x170 [ 1356.756125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.756125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.756125][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.756125][ T10] netlink_unicast+0x449/0x710 [ 1356.756125][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.756125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.756125][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.756125][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.756125][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.756125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.756125][ T10] [ 1356.757948][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1356.757948][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.757948][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.757948][ T10] ipv6_find_idev+0x102/0x170 [ 1356.757948][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.757948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.757948][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.757948][ T10] netlink_unicast+0x449/0x710 [ 1356.757948][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.757948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.757948][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.757948][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.757948][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.757948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.757948][ T10] [ 1356.760024][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1356.760349][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1356.760349][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.760349][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.760349][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.760349][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.760349][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.760349][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.760349][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.760349][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.760349][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.760349][ T10] netlink_unicast+0x449/0x710 [ 1356.760349][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.760349][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.760349][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.760349][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.760349][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.760349][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.760349][ T10] [ 1356.762681][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1356.762681][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.762681][ T10] ipv6_find_idev+0x102/0x170 [ 1356.762681][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.762681][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.762681][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.762681][ T10] netlink_unicast+0x449/0x710 [ 1356.762681][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.762681][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.762681][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.762681][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.762681][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.762681][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.762681][ T10] [ 1356.764428][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1356.764428][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.764428][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.764428][ T10] ipv6_find_idev+0x102/0x170 [ 1356.764428][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.764428][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.764428][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.764428][ T10] netlink_unicast+0x449/0x710 [ 1356.764428][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.764428][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.764428][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.764428][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.764428][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.764428][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.764428][ T10] [ 1356.766456][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1356.766823][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1356.766823][ T10] netdev_get_by_index+0x5e/0x80 [ 1356.766823][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1356.766823][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1356.766823][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1356.766823][ T10] ipv6_add_addr+0x411/0x2000 [ 1356.766823][ T10] inet6_addr_add+0x30e/0xa40 [ 1356.766823][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1356.766823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.766823][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.766823][ T10] netlink_unicast+0x449/0x710 [ 1356.766823][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.766823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.766823][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.766823][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.766823][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.766823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.766823][ T10] [ 1356.769225][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1356.769225][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1356.769225][ T10] ipv6_find_idev+0x102/0x170 [ 1356.769225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.769225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.769225][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.769225][ T10] netlink_unicast+0x449/0x710 [ 1356.769225][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.769225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.769225][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.769225][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.769225][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.769225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.769225][ T10] [ 1356.771074][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1356.771074][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1356.771074][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1356.771074][ T10] ipv6_find_idev+0x102/0x170 [ 1356.771074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1356.771074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1356.771074][ T10] netlink_rcv_skb+0x130/0x360 [ 1356.771074][ T10] netlink_unicast+0x449/0x710 [ 1356.771074][ T10] netlink_sendmsg+0x723/0xbe0 [ 1356.771074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1356.771074][ T10] ___sys_sendmsg+0xee/0x170 [ 1356.771074][ T10] __sys_sendmsg+0xcd/0x170 [ 1356.771074][ T10] do_syscall_64+0xc6/0x1e0 [ 1356.771074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1356.771074][ T10] [ 1367.019772][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1367.020261][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1367.020261][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.020261][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.020261][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.020261][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.020261][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.020261][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.020261][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.020261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.020261][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.020261][ T10] netlink_unicast+0x449/0x710 [ 1367.020261][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.020261][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.020261][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.020261][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.020261][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.020261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.020261][ T10] [ 1367.022531][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1367.022531][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.022531][ T10] ipv6_find_idev+0x102/0x170 [ 1367.022531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.022531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.022531][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.022531][ T10] netlink_unicast+0x449/0x710 [ 1367.022531][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.022531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.022531][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.022531][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.022531][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.022531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.022531][ T10] [ 1367.024253][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1367.024253][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.024253][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.024253][ T10] ipv6_find_idev+0x102/0x170 [ 1367.024253][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.024253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.024253][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.024253][ T10] netlink_unicast+0x449/0x710 [ 1367.024253][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.024253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.024253][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.024253][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.024253][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.024253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.024253][ T10] [ 1367.026140][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1367.026448][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1367.026448][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.026448][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.026448][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.026448][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.026448][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.026448][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.026448][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.026448][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.026448][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.026448][ T10] netlink_unicast+0x449/0x710 [ 1367.026448][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.026448][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.026448][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.026448][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.026448][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.026448][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.026448][ T10] [ 1367.028631][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1367.028631][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.028631][ T10] ipv6_find_idev+0x102/0x170 [ 1367.028631][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.028631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.028631][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.028631][ T10] netlink_unicast+0x449/0x710 [ 1367.028631][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.028631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.028631][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.028631][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.028631][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.028631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.028631][ T10] [ 1367.030341][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1367.030341][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.030341][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.030341][ T10] ipv6_find_idev+0x102/0x170 [ 1367.030341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.030341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.030341][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.030341][ T10] netlink_unicast+0x449/0x710 [ 1367.030341][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.030341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.030341][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.030341][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.030341][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.030341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.030341][ T10] [ 1367.032236][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1367.032526][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1367.032526][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.032526][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.032526][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.032526][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.032526][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.032526][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.032526][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.032526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.032526][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.032526][ T10] netlink_unicast+0x449/0x710 [ 1367.032526][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.032526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.032526][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.032526][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.032526][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.032526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.032526][ T10] [ 1367.034728][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1367.034728][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.034728][ T10] ipv6_find_idev+0x102/0x170 [ 1367.034728][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.034728][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.034728][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.034728][ T10] netlink_unicast+0x449/0x710 [ 1367.034728][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.034728][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.034728][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.034728][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.034728][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.034728][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.034728][ T10] [ 1367.036418][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1367.036418][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.036418][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.036418][ T10] ipv6_find_idev+0x102/0x170 [ 1367.036418][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.036418][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.036418][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.036418][ T10] netlink_unicast+0x449/0x710 [ 1367.036418][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.036418][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.036418][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.036418][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.036418][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.036418][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.036418][ T10] [ 1367.038270][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1367.038558][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1367.038558][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.038558][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.038558][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.038558][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.038558][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.038558][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.038558][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.038558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.038558][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.038558][ T10] netlink_unicast+0x449/0x710 [ 1367.038558][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.038558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.038558][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.038558][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.038558][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.038558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.038558][ T10] [ 1367.040763][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1367.040763][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.040763][ T10] ipv6_find_idev+0x102/0x170 [ 1367.040763][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.040763][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.040763][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.040763][ T10] netlink_unicast+0x449/0x710 [ 1367.040763][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.040763][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.040763][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.040763][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.040763][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.040763][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.040763][ T10] [ 1367.042475][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1367.042475][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.042475][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.042475][ T10] ipv6_find_idev+0x102/0x170 [ 1367.042475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.042475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.042475][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.042475][ T10] netlink_unicast+0x449/0x710 [ 1367.042475][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.042475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.042475][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.042475][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.042475][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.042475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.042475][ T10] [ 1367.044770][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1367.045059][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1367.045059][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.045059][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.045059][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.045059][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.045059][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.045059][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.045059][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.045059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.045059][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.045059][ T10] netlink_unicast+0x449/0x710 [ 1367.045059][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.045059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.045059][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.045059][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.045059][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.045059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.045059][ T10] [ 1367.047270][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1367.047270][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.047270][ T10] ipv6_find_idev+0x102/0x170 [ 1367.047270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.047270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.047270][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.047270][ T10] netlink_unicast+0x449/0x710 [ 1367.047270][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.047270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.047270][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.047270][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.047270][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.047270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.047270][ T10] [ 1367.048956][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1367.048956][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.048956][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.048956][ T10] ipv6_find_idev+0x102/0x170 [ 1367.048956][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.048956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.048956][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.048956][ T10] netlink_unicast+0x449/0x710 [ 1367.048956][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.048956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.048956][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.048956][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.048956][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.048956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.048956][ T10] [ 1367.050840][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1367.051123][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1367.051123][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.051123][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.051123][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.051123][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.051123][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.051123][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.051123][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.051123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.051123][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.051123][ T10] netlink_unicast+0x449/0x710 [ 1367.051123][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.051123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.051123][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.051123][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.051123][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.051123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.051123][ T10] [ 1367.053469][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1367.053469][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.053469][ T10] ipv6_find_idev+0x102/0x170 [ 1367.053469][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.053469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.053469][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.053469][ T10] netlink_unicast+0x449/0x710 [ 1367.053469][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.053469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.053469][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.053469][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.053469][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.053469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.053469][ T10] [ 1367.055497][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1367.055497][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.055497][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.055497][ T10] ipv6_find_idev+0x102/0x170 [ 1367.055497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.055497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.055497][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.055497][ T10] netlink_unicast+0x449/0x710 [ 1367.055497][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.055497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.055497][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.055497][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.055497][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.055497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.055497][ T10] [ 1367.057683][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1367.057975][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1367.057975][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.057975][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.057975][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.057975][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.057975][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.057975][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.057975][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.057975][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.057975][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.057975][ T10] netlink_unicast+0x449/0x710 [ 1367.057975][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.057975][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.057975][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.057975][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.057975][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.057975][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.057975][ T10] [ 1367.060374][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1367.060374][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.060374][ T10] ipv6_find_idev+0x102/0x170 [ 1367.060374][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.060374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.060374][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.060374][ T10] netlink_unicast+0x449/0x710 [ 1367.060374][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.060374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.060374][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.060374][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.060374][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.060374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.060374][ T10] [ 1367.062253][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1367.062253][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.062253][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.062253][ T10] ipv6_find_idev+0x102/0x170 [ 1367.062253][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.062253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.062253][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.062253][ T10] netlink_unicast+0x449/0x710 [ 1367.062253][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.062253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.062253][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.062253][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.062253][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.062253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.062253][ T10] [ 1367.064341][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1367.064628][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1367.064628][ T10] netdev_get_by_index+0x5e/0x80 [ 1367.064628][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1367.064628][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1367.064628][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1367.064628][ T10] ipv6_add_addr+0x411/0x2000 [ 1367.064628][ T10] inet6_addr_add+0x30e/0xa40 [ 1367.064628][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1367.064628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.064628][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.064628][ T10] netlink_unicast+0x449/0x710 [ 1367.064628][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.064628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.064628][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.064628][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.064628][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.064628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.064628][ T10] [ 1367.067158][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1367.067158][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1367.067158][ T10] ipv6_find_idev+0x102/0x170 [ 1367.067158][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.067158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.067158][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.067158][ T10] netlink_unicast+0x449/0x710 [ 1367.067158][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.067158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.067158][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.067158][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.067158][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.067158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.067158][ T10] [ 1367.069042][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1367.069042][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1367.069042][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1367.069042][ T10] ipv6_find_idev+0x102/0x170 [ 1367.069042][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1367.069042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1367.069042][ T10] netlink_rcv_skb+0x130/0x360 [ 1367.069042][ T10] netlink_unicast+0x449/0x710 [ 1367.069042][ T10] netlink_sendmsg+0x723/0xbe0 [ 1367.069042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1367.069042][ T10] ___sys_sendmsg+0xee/0x170 [ 1367.069042][ T10] __sys_sendmsg+0xcd/0x170 [ 1367.069042][ T10] do_syscall_64+0xc6/0x1e0 [ 1367.069042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1367.069042][ T10] [ 1377.171685][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1377.172131][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1377.172131][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.172131][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.172131][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.172131][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.172131][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.172131][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.172131][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.172131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.172131][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.172131][ T10] netlink_unicast+0x449/0x710 [ 1377.172131][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.172131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.172131][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.172131][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.172131][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.172131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.172131][ T10] [ 1377.174223][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1377.174223][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.174223][ T10] ipv6_find_idev+0x102/0x170 [ 1377.174223][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.174223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.174223][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.174223][ T10] netlink_unicast+0x449/0x710 [ 1377.174223][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.174223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.174223][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.174223][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.174223][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.174223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.174223][ T10] [ 1377.175853][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1377.175853][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.175853][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.175853][ T10] ipv6_find_idev+0x102/0x170 [ 1377.175853][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.175853][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.175853][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.175853][ T10] netlink_unicast+0x449/0x710 [ 1377.175853][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.175853][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.175853][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.175853][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.175853][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.175853][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.175853][ T10] [ 1377.177673][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1377.177971][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1377.177971][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.177971][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.177971][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.177971][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.177971][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.177971][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.177971][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.177971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.177971][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.177971][ T10] netlink_unicast+0x449/0x710 [ 1377.177971][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.177971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.177971][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.177971][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.177971][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.177971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.177971][ T10] [ 1377.180066][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1377.180066][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.180066][ T10] ipv6_find_idev+0x102/0x170 [ 1377.180066][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.180066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.180066][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.180066][ T10] netlink_unicast+0x449/0x710 [ 1377.180066][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.180066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.180066][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.180066][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.180066][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.180066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.180066][ T10] [ 1377.181693][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1377.181693][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.181693][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.181693][ T10] ipv6_find_idev+0x102/0x170 [ 1377.181693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.181693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.181693][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.181693][ T10] netlink_unicast+0x449/0x710 [ 1377.181693][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.181693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.181693][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.181693][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.181693][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.181693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.181693][ T10] [ 1377.183487][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1377.183802][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1377.183802][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.183802][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.183802][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.183802][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.183802][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.183802][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.183802][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.183802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.183802][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.183802][ T10] netlink_unicast+0x449/0x710 [ 1377.183802][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.183802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.183802][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.183802][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.183802][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.183802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.183802][ T10] [ 1377.185877][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1377.185877][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.185877][ T10] ipv6_find_idev+0x102/0x170 [ 1377.185877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.185877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.185877][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.185877][ T10] netlink_unicast+0x449/0x710 [ 1377.185877][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.185877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.185877][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.185877][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.185877][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.185877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.185877][ T10] [ 1377.187500][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1377.187500][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.187500][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.187500][ T10] ipv6_find_idev+0x102/0x170 [ 1377.187500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.187500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.187500][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.187500][ T10] netlink_unicast+0x449/0x710 [ 1377.187500][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.187500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.187500][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.187500][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.187500][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.187500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.187500][ T10] [ 1377.189276][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1377.189545][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1377.189545][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.189545][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.189545][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.189545][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.189545][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.189545][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.189545][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.189545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.189545][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.189545][ T10] netlink_unicast+0x449/0x710 [ 1377.189545][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.189545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.189545][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.189545][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.189545][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.189545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.189545][ T10] [ 1377.191594][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1377.191594][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.191594][ T10] ipv6_find_idev+0x102/0x170 [ 1377.191594][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.191594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.191594][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.191594][ T10] netlink_unicast+0x449/0x710 [ 1377.191594][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.191594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.191594][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.191594][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.191594][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.191594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.191594][ T10] [ 1377.193182][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1377.193182][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.193182][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.193182][ T10] ipv6_find_idev+0x102/0x170 [ 1377.193182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.193182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.193182][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.193182][ T10] netlink_unicast+0x449/0x710 [ 1377.193182][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.193182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.193182][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.193182][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.193182][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.193182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.193182][ T10] [ 1377.195354][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1377.196132][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1377.196132][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.196132][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.196132][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.196132][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.196132][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.196132][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.196132][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.196132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.196132][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.196132][ T10] netlink_unicast+0x449/0x710 [ 1377.196132][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.196132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.196132][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.196132][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.196132][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.196132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.196132][ T10] [ 1377.198225][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1377.198225][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.198225][ T10] ipv6_find_idev+0x102/0x170 [ 1377.198225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.198225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.198225][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.198225][ T10] netlink_unicast+0x449/0x710 [ 1377.198225][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.198225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.198225][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.198225][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.198225][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.198225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.198225][ T10] [ 1377.199884][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1377.199884][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.199884][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.199884][ T10] ipv6_find_idev+0x102/0x170 [ 1377.199884][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.199884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.199884][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.199884][ T10] netlink_unicast+0x449/0x710 [ 1377.199884][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.199884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.199884][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.199884][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.199884][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.199884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.199884][ T10] [ 1377.201717][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1377.202048][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1377.202048][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.202048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.202048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.202048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.202048][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.202048][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.202048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.202048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.202048][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.202048][ T10] netlink_unicast+0x449/0x710 [ 1377.202048][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.202048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.202048][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.202048][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.202048][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.202048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.202048][ T10] [ 1377.204129][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1377.204129][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.204129][ T10] ipv6_find_idev+0x102/0x170 [ 1377.204129][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.204129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.204129][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.204129][ T10] netlink_unicast+0x449/0x710 [ 1377.204129][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.204129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.204129][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.204129][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.204129][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.204129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.204129][ T10] [ 1377.205759][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1377.205759][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.205759][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.205759][ T10] ipv6_find_idev+0x102/0x170 [ 1377.205759][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.205759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.205759][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.205759][ T10] netlink_unicast+0x449/0x710 [ 1377.205759][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.205759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.205759][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.205759][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.205759][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.205759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.205759][ T10] [ 1377.207579][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1377.207930][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1377.207930][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.207930][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.207930][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.207930][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.207930][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.207930][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.207930][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.207930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.207930][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.207930][ T10] netlink_unicast+0x449/0x710 [ 1377.207930][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.207930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.207930][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.207930][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.207930][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.207930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.207930][ T10] [ 1377.209996][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1377.209996][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.209996][ T10] ipv6_find_idev+0x102/0x170 [ 1377.209996][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.209996][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.209996][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.209996][ T10] netlink_unicast+0x449/0x710 [ 1377.209996][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.209996][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.209996][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.209996][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.209996][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.209996][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.209996][ T10] [ 1377.211576][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1377.211576][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.211576][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.211576][ T10] ipv6_find_idev+0x102/0x170 [ 1377.211576][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.211576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.211576][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.211576][ T10] netlink_unicast+0x449/0x710 [ 1377.211576][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.211576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.211576][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.211576][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.211576][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.211576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.211576][ T10] [ 1377.213401][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1377.213760][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1377.213760][ T10] netdev_get_by_index+0x5e/0x80 [ 1377.213760][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1377.213760][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1377.213760][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1377.213760][ T10] ipv6_add_addr+0x411/0x2000 [ 1377.213760][ T10] inet6_addr_add+0x30e/0xa40 [ 1377.213760][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1377.213760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.213760][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.213760][ T10] netlink_unicast+0x449/0x710 [ 1377.213760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.213760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.213760][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.213760][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.213760][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.213760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.213760][ T10] [ 1377.215864][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1377.215864][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1377.215864][ T10] ipv6_find_idev+0x102/0x170 [ 1377.215864][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.215864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.215864][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.215864][ T10] netlink_unicast+0x449/0x710 [ 1377.215864][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.215864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.215864][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.215864][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.215864][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.215864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.215864][ T10] [ 1377.217559][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1377.217559][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1377.217559][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1377.217559][ T10] ipv6_find_idev+0x102/0x170 [ 1377.217559][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1377.217559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1377.217559][ T10] netlink_rcv_skb+0x130/0x360 [ 1377.217559][ T10] netlink_unicast+0x449/0x710 [ 1377.217559][ T10] netlink_sendmsg+0x723/0xbe0 [ 1377.217559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1377.217559][ T10] ___sys_sendmsg+0xee/0x170 [ 1377.217559][ T10] __sys_sendmsg+0xcd/0x170 [ 1377.217559][ T10] do_syscall_64+0xc6/0x1e0 [ 1377.217559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1377.217559][ T10] [ 1387.331675][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1387.332147][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1387.332147][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.332147][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.332147][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.332147][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.332147][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.332147][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.332147][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.332147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.332147][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.332147][ T10] netlink_unicast+0x449/0x710 [ 1387.332147][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.332147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.332147][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.332147][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.332147][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.332147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.332147][ T10] [ 1387.334212][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1387.334212][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.334212][ T10] ipv6_find_idev+0x102/0x170 [ 1387.334212][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.334212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.334212][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.334212][ T10] netlink_unicast+0x449/0x710 [ 1387.334212][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.334212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.334212][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.334212][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.334212][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.334212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.334212][ T10] [ 1387.335766][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1387.335766][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.335766][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.335766][ T10] ipv6_find_idev+0x102/0x170 [ 1387.335766][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.335766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.335766][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.335766][ T10] netlink_unicast+0x449/0x710 [ 1387.335766][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.335766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.335766][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.335766][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.335766][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.335766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.335766][ T10] [ 1387.337461][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1387.337752][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1387.337752][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.337752][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.337752][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.337752][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.337752][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.337752][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.337752][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.337752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.337752][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.337752][ T10] netlink_unicast+0x449/0x710 [ 1387.337752][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.337752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.337752][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.337752][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.337752][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.337752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.337752][ T10] [ 1387.339758][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1387.339758][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.339758][ T10] ipv6_find_idev+0x102/0x170 [ 1387.339758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.339758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.339758][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.339758][ T10] netlink_unicast+0x449/0x710 [ 1387.339758][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.339758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.339758][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.339758][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.339758][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.339758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.339758][ T10] [ 1387.341311][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1387.341311][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.341311][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.341311][ T10] ipv6_find_idev+0x102/0x170 [ 1387.341311][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.341311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.341311][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.341311][ T10] netlink_unicast+0x449/0x710 [ 1387.341311][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.341311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.341311][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.341311][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.341311][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.341311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.341311][ T10] [ 1387.343024][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1387.343298][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1387.343298][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.343298][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.343298][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.343298][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.343298][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.343298][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.343298][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.343298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.343298][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.343298][ T10] netlink_unicast+0x449/0x710 [ 1387.343298][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.343298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.343298][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.343298][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.343298][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.343298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.343298][ T10] [ 1387.345328][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1387.345328][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.345328][ T10] ipv6_find_idev+0x102/0x170 [ 1387.345328][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.345328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.345328][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.345328][ T10] netlink_unicast+0x449/0x710 [ 1387.345328][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.345328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.345328][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.345328][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.345328][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.345328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.345328][ T10] [ 1387.346862][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1387.346862][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.346862][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.346862][ T10] ipv6_find_idev+0x102/0x170 [ 1387.346862][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.346862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.346862][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.346862][ T10] netlink_unicast+0x449/0x710 [ 1387.346862][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.346862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.346862][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.346862][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.346862][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.346862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.346862][ T10] [ 1387.348575][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1387.348861][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1387.348861][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.348861][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.348861][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.348861][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.348861][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.348861][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.348861][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.348861][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.348861][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.348861][ T10] netlink_unicast+0x449/0x710 [ 1387.348861][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.348861][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.348861][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.348861][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.348861][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.348861][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.348861][ T10] [ 1387.350885][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1387.350885][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.350885][ T10] ipv6_find_idev+0x102/0x170 [ 1387.350885][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.350885][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.350885][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.350885][ T10] netlink_unicast+0x449/0x710 [ 1387.350885][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.350885][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.350885][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.350885][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.350885][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.350885][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.350885][ T10] [ 1387.352436][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1387.352436][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.352436][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.352436][ T10] ipv6_find_idev+0x102/0x170 [ 1387.352436][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.352436][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.352436][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.352436][ T10] netlink_unicast+0x449/0x710 [ 1387.352436][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.352436][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.352436][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.352436][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.352436][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.352436][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.352436][ T10] [ 1387.354152][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1387.354431][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1387.354431][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.354431][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.354431][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.354431][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.354431][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.354431][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.354431][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.354431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.354431][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.354431][ T10] netlink_unicast+0x449/0x710 [ 1387.354431][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.354431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.354431][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.354431][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.354431][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.354431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.354431][ T10] [ 1387.356442][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1387.356442][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.356442][ T10] ipv6_find_idev+0x102/0x170 [ 1387.356442][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.356442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.356442][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.356442][ T10] netlink_unicast+0x449/0x710 [ 1387.356442][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.356442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.356442][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.356442][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.356442][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.356442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.356442][ T10] [ 1387.358134][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1387.358134][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.358134][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.358134][ T10] ipv6_find_idev+0x102/0x170 [ 1387.358134][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.358134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.358134][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.358134][ T10] netlink_unicast+0x449/0x710 [ 1387.358134][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.358134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.358134][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.358134][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.358134][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.358134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.358134][ T10] [ 1387.360013][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1387.360282][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1387.360282][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.360282][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.360282][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.360282][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.360282][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.360282][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.360282][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.360282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.360282][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.360282][ T10] netlink_unicast+0x449/0x710 [ 1387.360282][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.360282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.360282][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.360282][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.360282][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.360282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.360282][ T10] [ 1387.362555][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1387.362555][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.362555][ T10] ipv6_find_idev+0x102/0x170 [ 1387.362555][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.362555][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.362555][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.362555][ T10] netlink_unicast+0x449/0x710 [ 1387.362555][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.362555][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.362555][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.362555][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.362555][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.362555][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.362555][ T10] [ 1387.364299][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1387.364299][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.364299][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.364299][ T10] ipv6_find_idev+0x102/0x170 [ 1387.364299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.364299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.364299][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.364299][ T10] netlink_unicast+0x449/0x710 [ 1387.364299][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.364299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.364299][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.364299][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.364299][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.364299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.364299][ T10] [ 1387.366161][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1387.366574][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1387.366574][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.366574][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.366574][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.366574][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.366574][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.366574][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.366574][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.366574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.366574][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.366574][ T10] netlink_unicast+0x449/0x710 [ 1387.366574][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.366574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.366574][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.366574][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.366574][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.366574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.366574][ T10] [ 1387.368685][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1387.368685][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.368685][ T10] ipv6_find_idev+0x102/0x170 [ 1387.368685][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.368685][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.368685][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.368685][ T10] netlink_unicast+0x449/0x710 [ 1387.368685][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.368685][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.368685][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.368685][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.368685][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.368685][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.368685][ T10] [ 1387.370396][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1387.370396][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.370396][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.370396][ T10] ipv6_find_idev+0x102/0x170 [ 1387.370396][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.370396][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.370396][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.370396][ T10] netlink_unicast+0x449/0x710 [ 1387.370396][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.370396][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.370396][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.370396][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.370396][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.370396][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.370396][ T10] [ 1387.372676][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1387.372936][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1387.372936][ T10] netdev_get_by_index+0x5e/0x80 [ 1387.372936][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1387.372936][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1387.372936][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1387.372936][ T10] ipv6_add_addr+0x411/0x2000 [ 1387.372936][ T10] inet6_addr_add+0x30e/0xa40 [ 1387.372936][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1387.372936][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.372936][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.372936][ T10] netlink_unicast+0x449/0x710 [ 1387.372936][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.372936][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.372936][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.372936][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.372936][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.372936][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.372936][ T10] [ 1387.374914][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1387.374914][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1387.374914][ T10] ipv6_find_idev+0x102/0x170 [ 1387.374914][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.374914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.374914][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.374914][ T10] netlink_unicast+0x449/0x710 [ 1387.374914][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.374914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.374914][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.374914][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.374914][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.374914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.374914][ T10] [ 1387.376486][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1387.376486][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1387.376486][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1387.376486][ T10] ipv6_find_idev+0x102/0x170 [ 1387.376486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1387.376486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1387.376486][ T10] netlink_rcv_skb+0x130/0x360 [ 1387.376486][ T10] netlink_unicast+0x449/0x710 [ 1387.376486][ T10] netlink_sendmsg+0x723/0xbe0 [ 1387.376486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1387.376486][ T10] ___sys_sendmsg+0xee/0x170 [ 1387.376486][ T10] __sys_sendmsg+0xcd/0x170 [ 1387.376486][ T10] do_syscall_64+0xc6/0x1e0 [ 1387.376486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1387.376486][ T10] [ 1397.499819][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1397.500215][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1397.500215][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.500215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.500215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.500215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.500215][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.500215][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.500215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.500215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.500215][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.500215][ T10] netlink_unicast+0x449/0x710 [ 1397.500215][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.500215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.500215][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.500215][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.500215][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.500215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.500215][ T10] [ 1397.502593][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1397.502593][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.502593][ T10] ipv6_find_idev+0x102/0x170 [ 1397.502593][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.502593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.502593][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.502593][ T10] netlink_unicast+0x449/0x710 [ 1397.502593][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.502593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.502593][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.502593][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.502593][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.502593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.502593][ T10] [ 1397.504420][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1397.504420][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.504420][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.504420][ T10] ipv6_find_idev+0x102/0x170 [ 1397.504420][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.504420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.504420][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.504420][ T10] netlink_unicast+0x449/0x710 [ 1397.504420][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.504420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.504420][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.504420][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.504420][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.504420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.504420][ T10] [ 1397.506413][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1397.506737][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1397.506737][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.506737][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.506737][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.506737][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.506737][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.506737][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.506737][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.506737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.506737][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.506737][ T10] netlink_unicast+0x449/0x710 [ 1397.506737][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.506737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.506737][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.506737][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.506737][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.506737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.506737][ T10] [ 1397.509038][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1397.509038][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.509038][ T10] ipv6_find_idev+0x102/0x170 [ 1397.509038][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.509038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.509038][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.509038][ T10] netlink_unicast+0x449/0x710 [ 1397.509038][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.509038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.509038][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.509038][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.509038][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.509038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.509038][ T10] [ 1397.510865][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1397.510865][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.510865][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.510865][ T10] ipv6_find_idev+0x102/0x170 [ 1397.510865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.510865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.510865][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.510865][ T10] netlink_unicast+0x449/0x710 [ 1397.510865][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.510865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.510865][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.510865][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.510865][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.510865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.510865][ T10] [ 1397.512798][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1397.513106][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1397.513106][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.513106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.513106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.513106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.513106][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.513106][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.513106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.513106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.513106][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.513106][ T10] netlink_unicast+0x449/0x710 [ 1397.513106][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.513106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.513106][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.513106][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.513106][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.513106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.513106][ T10] [ 1397.515401][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1397.515401][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.515401][ T10] ipv6_find_idev+0x102/0x170 [ 1397.515401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.515401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.515401][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.515401][ T10] netlink_unicast+0x449/0x710 [ 1397.515401][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.515401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.515401][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.515401][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.515401][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.515401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.515401][ T10] [ 1397.517163][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1397.517163][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.517163][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.517163][ T10] ipv6_find_idev+0x102/0x170 [ 1397.517163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.517163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.517163][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.517163][ T10] netlink_unicast+0x449/0x710 [ 1397.517163][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.517163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.517163][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.517163][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.517163][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.517163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.517163][ T10] [ 1397.519108][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1397.519413][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1397.519413][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.519413][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.519413][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.519413][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.519413][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.519413][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.519413][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.519413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.519413][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.519413][ T10] netlink_unicast+0x449/0x710 [ 1397.519413][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.519413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.519413][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.519413][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.519413][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.519413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.519413][ T10] [ 1397.521748][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1397.521748][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.521748][ T10] ipv6_find_idev+0x102/0x170 [ 1397.521748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.521748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.521748][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.521748][ T10] netlink_unicast+0x449/0x710 [ 1397.521748][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.521748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.521748][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.521748][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.521748][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.521748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.521748][ T10] [ 1397.523569][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1397.523569][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.523569][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.523569][ T10] ipv6_find_idev+0x102/0x170 [ 1397.523569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.523569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.523569][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.523569][ T10] netlink_unicast+0x449/0x710 [ 1397.523569][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.523569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.523569][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.523569][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.523569][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.523569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.523569][ T10] [ 1397.525976][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1397.526299][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1397.526299][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.526299][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.526299][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.526299][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.526299][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.526299][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.526299][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.526299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.526299][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.526299][ T10] netlink_unicast+0x449/0x710 [ 1397.526299][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.526299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.526299][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.526299][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.526299][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.526299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.526299][ T10] [ 1397.528592][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1397.528592][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.528592][ T10] ipv6_find_idev+0x102/0x170 [ 1397.528592][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.528592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.528592][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.528592][ T10] netlink_unicast+0x449/0x710 [ 1397.528592][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.528592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.528592][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.528592][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.528592][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.528592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.528592][ T10] [ 1397.530394][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1397.530394][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.530394][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.530394][ T10] ipv6_find_idev+0x102/0x170 [ 1397.530394][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.530394][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.530394][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.530394][ T10] netlink_unicast+0x449/0x710 [ 1397.530394][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.530394][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.530394][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.530394][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.530394][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.530394][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.530394][ T10] [ 1397.532377][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1397.532683][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1397.532683][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.532683][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.532683][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.532683][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.532683][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.532683][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.532683][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.532683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.532683][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.532683][ T10] netlink_unicast+0x449/0x710 [ 1397.532683][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.532683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.532683][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.532683][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.532683][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.532683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.532683][ T10] [ 1397.535097][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1397.535097][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.535097][ T10] ipv6_find_idev+0x102/0x170 [ 1397.535097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.535097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.535097][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.535097][ T10] netlink_unicast+0x449/0x710 [ 1397.535097][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.535097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.535097][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.535097][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.535097][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.535097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.535097][ T10] [ 1397.537080][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1397.537080][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.537080][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.537080][ T10] ipv6_find_idev+0x102/0x170 [ 1397.537080][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.537080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.537080][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.537080][ T10] netlink_unicast+0x449/0x710 [ 1397.537080][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.537080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.537080][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.537080][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.537080][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.537080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.537080][ T10] [ 1397.539301][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1397.539620][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1397.539620][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.539620][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.539620][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.539620][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.539620][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.539620][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.539620][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.539620][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.539620][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.539620][ T10] netlink_unicast+0x449/0x710 [ 1397.539620][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.539620][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.539620][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.539620][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.539620][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.539620][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.539620][ T10] [ 1397.542128][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1397.542128][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.542128][ T10] ipv6_find_idev+0x102/0x170 [ 1397.542128][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.542128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.542128][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.542128][ T10] netlink_unicast+0x449/0x710 [ 1397.542128][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.542128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.542128][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.542128][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.542128][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.542128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.542128][ T10] [ 1397.543942][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1397.543942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.543942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.543942][ T10] ipv6_find_idev+0x102/0x170 [ 1397.543942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.543942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.543942][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.543942][ T10] netlink_unicast+0x449/0x710 [ 1397.543942][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.543942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.543942][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.543942][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.543942][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.543942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.543942][ T10] [ 1397.546058][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1397.546353][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1397.546353][ T10] netdev_get_by_index+0x5e/0x80 [ 1397.546353][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1397.546353][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1397.546353][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1397.546353][ T10] ipv6_add_addr+0x411/0x2000 [ 1397.546353][ T10] inet6_addr_add+0x30e/0xa40 [ 1397.546353][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1397.546353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.546353][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.546353][ T10] netlink_unicast+0x449/0x710 [ 1397.546353][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.546353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.546353][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.546353][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.546353][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.546353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.546353][ T10] [ 1397.548778][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1397.548778][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1397.548778][ T10] ipv6_find_idev+0x102/0x170 [ 1397.548778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.548778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.548778][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.548778][ T10] netlink_unicast+0x449/0x710 [ 1397.548778][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.548778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.548778][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.548778][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.548778][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.548778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.548778][ T10] [ 1397.550561][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1397.550561][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1397.550561][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1397.550561][ T10] ipv6_find_idev+0x102/0x170 [ 1397.550561][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1397.550561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1397.550561][ T10] netlink_rcv_skb+0x130/0x360 [ 1397.550561][ T10] netlink_unicast+0x449/0x710 [ 1397.550561][ T10] netlink_sendmsg+0x723/0xbe0 [ 1397.550561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1397.550561][ T10] ___sys_sendmsg+0xee/0x170 [ 1397.550561][ T10] __sys_sendmsg+0xcd/0x170 [ 1397.550561][ T10] do_syscall_64+0xc6/0x1e0 [ 1397.550561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1397.550561][ T10] [ 1407.675899][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1407.676354][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1407.676354][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.676354][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.676354][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.676354][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.676354][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.676354][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.676354][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.676354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.676354][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.676354][ T10] netlink_unicast+0x449/0x710 [ 1407.676354][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.676354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.676354][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.676354][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.676354][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.676354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.676354][ T10] [ 1407.678387][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1407.678387][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.678387][ T10] ipv6_find_idev+0x102/0x170 [ 1407.678387][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.678387][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.678387][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.678387][ T10] netlink_unicast+0x449/0x710 [ 1407.678387][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.678387][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.678387][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.678387][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.678387][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.678387][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.678387][ T10] [ 1407.679943][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1407.679943][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.679943][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.679943][ T10] ipv6_find_idev+0x102/0x170 [ 1407.679943][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.679943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.679943][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.679943][ T10] netlink_unicast+0x449/0x710 [ 1407.679943][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.679943][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.679943][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.679943][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.679943][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.679943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.679943][ T10] [ 1407.681647][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1407.681923][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1407.681923][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.681923][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.681923][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.681923][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.681923][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.681923][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.681923][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.681923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.681923][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.681923][ T10] netlink_unicast+0x449/0x710 [ 1407.681923][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.681923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.681923][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.681923][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.681923][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.681923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.681923][ T10] [ 1407.683931][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1407.683931][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.683931][ T10] ipv6_find_idev+0x102/0x170 [ 1407.683931][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.683931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.683931][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.683931][ T10] netlink_unicast+0x449/0x710 [ 1407.683931][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.683931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.683931][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.683931][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.683931][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.683931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.683931][ T10] [ 1407.685471][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1407.685471][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.685471][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.685471][ T10] ipv6_find_idev+0x102/0x170 [ 1407.685471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.685471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.685471][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.685471][ T10] netlink_unicast+0x449/0x710 [ 1407.685471][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.685471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.685471][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.685471][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.685471][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.685471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.685471][ T10] [ 1407.687141][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1407.687414][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1407.687414][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.687414][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.687414][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.687414][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.687414][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.687414][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.687414][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.687414][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.687414][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.687414][ T10] netlink_unicast+0x449/0x710 [ 1407.687414][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.687414][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.687414][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.687414][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.687414][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.687414][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.687414][ T10] [ 1407.689417][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1407.689417][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.689417][ T10] ipv6_find_idev+0x102/0x170 [ 1407.689417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.689417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.689417][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.689417][ T10] netlink_unicast+0x449/0x710 [ 1407.689417][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.689417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.689417][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.689417][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.689417][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.689417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.689417][ T10] [ 1407.690955][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1407.690955][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.690955][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.690955][ T10] ipv6_find_idev+0x102/0x170 [ 1407.690955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.690955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.690955][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.690955][ T10] netlink_unicast+0x449/0x710 [ 1407.690955][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.690955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.690955][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.690955][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.690955][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.690955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.690955][ T10] [ 1407.692656][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1407.692931][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1407.692931][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.692931][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.692931][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.692931][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.692931][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.692931][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.692931][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.692931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.692931][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.692931][ T10] netlink_unicast+0x449/0x710 [ 1407.692931][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.692931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.692931][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.692931][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.692931][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.692931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.692931][ T10] [ 1407.694950][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1407.694950][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.694950][ T10] ipv6_find_idev+0x102/0x170 [ 1407.694950][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.694950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.694950][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.694950][ T10] netlink_unicast+0x449/0x710 [ 1407.694950][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.694950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.694950][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.694950][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.694950][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.694950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.694950][ T10] [ 1407.696491][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1407.696491][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.696491][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.696491][ T10] ipv6_find_idev+0x102/0x170 [ 1407.696491][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.696491][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.696491][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.696491][ T10] netlink_unicast+0x449/0x710 [ 1407.696491][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.696491][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.696491][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.696491][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.696491][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.696491][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.696491][ T10] [ 1407.698580][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1407.699193][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1407.699193][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.699193][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.699193][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.699193][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.699193][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.699193][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.699193][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.699193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.699193][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.699193][ T10] netlink_unicast+0x449/0x710 [ 1407.699193][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.699193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.699193][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.699193][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.699193][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.699193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.699193][ T10] [ 1407.701189][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1407.701189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.701189][ T10] ipv6_find_idev+0x102/0x170 [ 1407.701189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.701189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.701189][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.701189][ T10] netlink_unicast+0x449/0x710 [ 1407.701189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.701189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.701189][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.701189][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.701189][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.701189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.701189][ T10] [ 1407.702747][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1407.702747][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.702747][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.702747][ T10] ipv6_find_idev+0x102/0x170 [ 1407.702747][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.702747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.702747][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.702747][ T10] netlink_unicast+0x449/0x710 [ 1407.702747][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.702747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.702747][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.702747][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.702747][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.702747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.702747][ T10] [ 1407.704450][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1407.704776][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1407.704776][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.704776][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.704776][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.704776][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.704776][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.704776][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.704776][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.704776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.704776][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.704776][ T10] netlink_unicast+0x449/0x710 [ 1407.704776][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.704776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.704776][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.704776][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.704776][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.704776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.704776][ T10] [ 1407.706784][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1407.706784][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.706784][ T10] ipv6_find_idev+0x102/0x170 [ 1407.706784][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.706784][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.706784][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.706784][ T10] netlink_unicast+0x449/0x710 [ 1407.706784][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.706784][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.706784][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.706784][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.706784][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.706784][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.706784][ T10] [ 1407.708320][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1407.708320][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.708320][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.708320][ T10] ipv6_find_idev+0x102/0x170 [ 1407.708320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.708320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.708320][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.708320][ T10] netlink_unicast+0x449/0x710 [ 1407.708320][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.708320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.708320][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.708320][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.708320][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.708320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.708320][ T10] [ 1407.710118][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1407.710388][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1407.710388][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.710388][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.710388][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.710388][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.710388][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.710388][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.710388][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.710388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.710388][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.710388][ T10] netlink_unicast+0x449/0x710 [ 1407.710388][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.710388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.710388][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.710388][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.710388][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.710388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.710388][ T10] [ 1407.712468][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1407.712468][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.712468][ T10] ipv6_find_idev+0x102/0x170 [ 1407.712468][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.712468][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.712468][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.712468][ T10] netlink_unicast+0x449/0x710 [ 1407.712468][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.712468][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.712468][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.712468][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.712468][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.712468][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.712468][ T10] [ 1407.714147][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1407.714147][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.714147][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.714147][ T10] ipv6_find_idev+0x102/0x170 [ 1407.714147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.714147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.714147][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.714147][ T10] netlink_unicast+0x449/0x710 [ 1407.714147][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.714147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.714147][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.714147][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.714147][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.714147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.714147][ T10] [ 1407.715990][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1407.716258][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1407.716258][ T10] netdev_get_by_index+0x5e/0x80 [ 1407.716258][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1407.716258][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1407.716258][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1407.716258][ T10] ipv6_add_addr+0x411/0x2000 [ 1407.716258][ T10] inet6_addr_add+0x30e/0xa40 [ 1407.716258][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1407.716258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.716258][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.716258][ T10] netlink_unicast+0x449/0x710 [ 1407.716258][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.716258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.716258][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.716258][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.716258][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.716258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.716258][ T10] [ 1407.718391][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1407.718391][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1407.718391][ T10] ipv6_find_idev+0x102/0x170 [ 1407.718391][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.718391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.718391][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.718391][ T10] netlink_unicast+0x449/0x710 [ 1407.718391][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.718391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.718391][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.718391][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.718391][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.718391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.718391][ T10] [ 1407.719986][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1407.719986][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1407.719986][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1407.719986][ T10] ipv6_find_idev+0x102/0x170 [ 1407.719986][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1407.719986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1407.719986][ T10] netlink_rcv_skb+0x130/0x360 [ 1407.719986][ T10] netlink_unicast+0x449/0x710 [ 1407.719986][ T10] netlink_sendmsg+0x723/0xbe0 [ 1407.719986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1407.719986][ T10] ___sys_sendmsg+0xee/0x170 [ 1407.719986][ T10] __sys_sendmsg+0xcd/0x170 [ 1407.719986][ T10] do_syscall_64+0xc6/0x1e0 [ 1407.719986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1407.719986][ T10] [ 1417.827669][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1417.828039][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1417.828039][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.828039][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.828039][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.828039][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.828039][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.828039][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.828039][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.828039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.828039][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.828039][ T10] netlink_unicast+0x449/0x710 [ 1417.828039][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.828039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.828039][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.828039][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.828039][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.828039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.828039][ T10] [ 1417.830076][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1417.830076][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.830076][ T10] ipv6_find_idev+0x102/0x170 [ 1417.830076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.830076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.830076][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.830076][ T10] netlink_unicast+0x449/0x710 [ 1417.830076][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.830076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.830076][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.830076][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.830076][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.830076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.830076][ T10] [ 1417.831615][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1417.831615][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.831615][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.831615][ T10] ipv6_find_idev+0x102/0x170 [ 1417.831615][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.831615][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.831615][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.831615][ T10] netlink_unicast+0x449/0x710 [ 1417.831615][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.831615][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.831615][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.831615][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.831615][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.831615][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.831615][ T10] [ 1417.833338][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1417.833617][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1417.833617][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.833617][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.833617][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.833617][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.833617][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.833617][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.833617][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.833617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.833617][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.833617][ T10] netlink_unicast+0x449/0x710 [ 1417.833617][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.833617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.833617][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.833617][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.833617][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.833617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.833617][ T10] [ 1417.835606][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1417.835606][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.835606][ T10] ipv6_find_idev+0x102/0x170 [ 1417.835606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.835606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.835606][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.835606][ T10] netlink_unicast+0x449/0x710 [ 1417.835606][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.835606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.835606][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.835606][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.835606][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.835606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.835606][ T10] [ 1417.837150][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1417.837150][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.837150][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.837150][ T10] ipv6_find_idev+0x102/0x170 [ 1417.837150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.837150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.837150][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.837150][ T10] netlink_unicast+0x449/0x710 [ 1417.837150][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.837150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.837150][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.837150][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.837150][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.837150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.837150][ T10] [ 1417.838858][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1417.839139][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1417.839139][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.839139][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.839139][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.839139][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.839139][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.839139][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.839139][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.839139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.839139][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.839139][ T10] netlink_unicast+0x449/0x710 [ 1417.839139][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.839139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.839139][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.839139][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.839139][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.839139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.839139][ T10] [ 1417.841144][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1417.841144][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.841144][ T10] ipv6_find_idev+0x102/0x170 [ 1417.841144][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.841144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.841144][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.841144][ T10] netlink_unicast+0x449/0x710 [ 1417.841144][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.841144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.841144][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.841144][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.841144][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.841144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.841144][ T10] [ 1417.842677][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1417.842677][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.842677][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.842677][ T10] ipv6_find_idev+0x102/0x170 [ 1417.842677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.842677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.842677][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.842677][ T10] netlink_unicast+0x449/0x710 [ 1417.842677][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.842677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.842677][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.842677][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.842677][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.842677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.842677][ T10] [ 1417.844955][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1417.845222][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1417.845222][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.845222][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.845222][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.845222][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.845222][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.845222][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.845222][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.845222][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.845222][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.845222][ T10] netlink_unicast+0x449/0x710 [ 1417.845222][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.845222][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.845222][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.845222][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.845222][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.845222][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.845222][ T10] [ 1417.847189][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1417.847189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.847189][ T10] ipv6_find_idev+0x102/0x170 [ 1417.847189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.847189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.847189][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.847189][ T10] netlink_unicast+0x449/0x710 [ 1417.847189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.847189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.847189][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.847189][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.847189][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.847189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.847189][ T10] [ 1417.848778][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1417.848778][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.848778][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.848778][ T10] ipv6_find_idev+0x102/0x170 [ 1417.848778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.848778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.848778][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.848778][ T10] netlink_unicast+0x449/0x710 [ 1417.848778][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.848778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.848778][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.848778][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.848778][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.848778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.848778][ T10] [ 1417.850810][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1417.851082][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1417.851082][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.851082][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.851082][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.851082][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.851082][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.851082][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.851082][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.851082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.851082][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.851082][ T10] netlink_unicast+0x449/0x710 [ 1417.851082][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.851082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.851082][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.851082][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.851082][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.851082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.851082][ T10] [ 1417.853043][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1417.853043][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.853043][ T10] ipv6_find_idev+0x102/0x170 [ 1417.853043][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.853043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.853043][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.853043][ T10] netlink_unicast+0x449/0x710 [ 1417.853043][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.853043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.853043][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.853043][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.853043][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.853043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.853043][ T10] [ 1417.854846][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1417.854846][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.854846][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.854846][ T10] ipv6_find_idev+0x102/0x170 [ 1417.854846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.854846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.854846][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.854846][ T10] netlink_unicast+0x449/0x710 [ 1417.854846][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.854846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.854846][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.854846][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.854846][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.854846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.854846][ T10] [ 1417.856728][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1417.856999][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1417.856999][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.856999][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.856999][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.856999][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.856999][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.856999][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.856999][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.856999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.856999][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.856999][ T10] netlink_unicast+0x449/0x710 [ 1417.856999][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.856999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.856999][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.856999][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.856999][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.856999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.856999][ T10] [ 1417.859056][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1417.859056][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.859056][ T10] ipv6_find_idev+0x102/0x170 [ 1417.859056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.859056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.859056][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.859056][ T10] netlink_unicast+0x449/0x710 [ 1417.859056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.859056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.859056][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.859056][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.859056][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.859056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.859056][ T10] [ 1417.860770][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1417.860770][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.860770][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.860770][ T10] ipv6_find_idev+0x102/0x170 [ 1417.860770][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.860770][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.860770][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.860770][ T10] netlink_unicast+0x449/0x710 [ 1417.860770][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.860770][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.860770][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.860770][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.860770][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.860770][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.860770][ T10] [ 1417.862636][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1417.862966][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1417.862966][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.862966][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.862966][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.862966][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.862966][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.862966][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.862966][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.862966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.862966][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.862966][ T10] netlink_unicast+0x449/0x710 [ 1417.862966][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.862966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.862966][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.862966][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.862966][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.862966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.862966][ T10] [ 1417.865140][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1417.865140][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.865140][ T10] ipv6_find_idev+0x102/0x170 [ 1417.865140][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.865140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.865140][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.865140][ T10] netlink_unicast+0x449/0x710 [ 1417.865140][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.865140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.865140][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.865140][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.865140][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.865140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.865140][ T10] [ 1417.866736][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1417.866736][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.866736][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.866736][ T10] ipv6_find_idev+0x102/0x170 [ 1417.866736][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.866736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.866736][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.866736][ T10] netlink_unicast+0x449/0x710 [ 1417.866736][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.866736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.866736][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.866736][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.866736][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.866736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.866736][ T10] [ 1417.868734][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1417.869002][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1417.869002][ T10] netdev_get_by_index+0x5e/0x80 [ 1417.869002][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1417.869002][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1417.869002][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1417.869002][ T10] ipv6_add_addr+0x411/0x2000 [ 1417.869002][ T10] inet6_addr_add+0x30e/0xa40 [ 1417.869002][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1417.869002][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.869002][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.869002][ T10] netlink_unicast+0x449/0x710 [ 1417.869002][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.869002][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.869002][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.869002][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.869002][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.869002][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.869002][ T10] [ 1417.871187][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1417.871187][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1417.871187][ T10] ipv6_find_idev+0x102/0x170 [ 1417.871187][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.871187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.871187][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.871187][ T10] netlink_unicast+0x449/0x710 [ 1417.871187][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.871187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.871187][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.871187][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.871187][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.871187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.871187][ T10] [ 1417.872778][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1417.872778][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1417.872778][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1417.872778][ T10] ipv6_find_idev+0x102/0x170 [ 1417.872778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1417.872778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1417.872778][ T10] netlink_rcv_skb+0x130/0x360 [ 1417.872778][ T10] netlink_unicast+0x449/0x710 [ 1417.872778][ T10] netlink_sendmsg+0x723/0xbe0 [ 1417.872778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1417.872778][ T10] ___sys_sendmsg+0xee/0x170 [ 1417.872778][ T10] __sys_sendmsg+0xcd/0x170 [ 1417.872778][ T10] do_syscall_64+0xc6/0x1e0 [ 1417.872778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1417.872778][ T10] [ 1427.955786][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1427.956301][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1427.956301][ T10] netdev_get_by_index+0x5e/0x80 [ 1427.956301][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1427.956301][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1427.956301][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1427.956301][ T10] ipv6_add_addr+0x411/0x2000 [ 1427.956301][ T10] inet6_addr_add+0x30e/0xa40 [ 1427.956301][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1427.956301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.956301][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.956301][ T10] netlink_unicast+0x449/0x710 [ 1427.956301][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.956301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.956301][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.956301][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.956301][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.956301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.956301][ T10] [ 1427.958645][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1427.958645][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1427.958645][ T10] ipv6_find_idev+0x102/0x170 [ 1427.958645][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.958645][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.958645][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.958645][ T10] netlink_unicast+0x449/0x710 [ 1427.958645][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.958645][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.958645][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.958645][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.958645][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.958645][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.958645][ T10] [ 1427.960458][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1427.960458][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1427.960458][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1427.960458][ T10] ipv6_find_idev+0x102/0x170 [ 1427.960458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.960458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.960458][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.960458][ T10] netlink_unicast+0x449/0x710 [ 1427.960458][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.960458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.960458][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.960458][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.960458][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.960458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.960458][ T10] [ 1427.962412][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1427.962744][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1427.962744][ T10] netdev_get_by_index+0x5e/0x80 [ 1427.962744][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1427.962744][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1427.962744][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1427.962744][ T10] ipv6_add_addr+0x411/0x2000 [ 1427.962744][ T10] inet6_addr_add+0x30e/0xa40 [ 1427.962744][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1427.962744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.962744][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.962744][ T10] netlink_unicast+0x449/0x710 [ 1427.962744][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.962744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.962744][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.962744][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.962744][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.962744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.962744][ T10] [ 1427.965039][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1427.965039][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1427.965039][ T10] ipv6_find_idev+0x102/0x170 [ 1427.965039][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.965039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.965039][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.965039][ T10] netlink_unicast+0x449/0x710 [ 1427.965039][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.965039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.965039][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.965039][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.965039][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.965039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.965039][ T10] [ 1427.966784][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1427.966784][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1427.966784][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1427.966784][ T10] ipv6_find_idev+0x102/0x170 [ 1427.966784][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.966784][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.966784][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.966784][ T10] netlink_unicast+0x449/0x710 [ 1427.966784][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.966784][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.966784][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.966784][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.966784][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.966784][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.966784][ T10] [ 1427.968695][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1427.968992][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1427.968992][ T10] netdev_get_by_index+0x5e/0x80 [ 1427.968992][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1427.968992][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1427.968992][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1427.968992][ T10] ipv6_add_addr+0x411/0x2000 [ 1427.968992][ T10] inet6_addr_add+0x30e/0xa40 [ 1427.968992][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1427.968992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.968992][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.968992][ T10] netlink_unicast+0x449/0x710 [ 1427.968992][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.968992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.968992][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.968992][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.968992][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.968992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.968992][ T10] [ 1427.971281][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1427.971281][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1427.971281][ T10] ipv6_find_idev+0x102/0x170 [ 1427.971281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.971281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.971281][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.971281][ T10] netlink_unicast+0x449/0x710 [ 1427.971281][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.971281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.971281][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.971281][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.971281][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.971281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.971281][ T10] [ 1427.973037][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1427.973037][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1427.973037][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1427.973037][ T10] ipv6_find_idev+0x102/0x170 [ 1427.973037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.973037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.973037][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.973037][ T10] netlink_unicast+0x449/0x710 [ 1427.973037][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.973037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.973037][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.973037][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.973037][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.973037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.973037][ T10] [ 1427.975003][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1427.975304][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1427.975304][ T10] netdev_get_by_index+0x5e/0x80 [ 1427.975304][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1427.975304][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1427.975304][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1427.975304][ T10] ipv6_add_addr+0x411/0x2000 [ 1427.975304][ T10] inet6_addr_add+0x30e/0xa40 [ 1427.975304][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1427.975304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.975304][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.975304][ T10] netlink_unicast+0x449/0x710 [ 1427.975304][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.975304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.975304][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.975304][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.975304][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.975304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.975304][ T10] [ 1427.977589][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1427.977589][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1427.977589][ T10] ipv6_find_idev+0x102/0x170 [ 1427.977589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.977589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.977589][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.977589][ T10] netlink_unicast+0x449/0x710 [ 1427.977589][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.977589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.977589][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.977589][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.977589][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.977589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.977589][ T10] [ 1427.979346][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1427.979346][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1427.979346][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1427.979346][ T10] ipv6_find_idev+0x102/0x170 [ 1427.979346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.979346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.979346][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.979346][ T10] netlink_unicast+0x449/0x710 [ 1427.979346][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.979346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.979346][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.979346][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.979346][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.979346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.979346][ T10] [ 1427.981707][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1427.982344][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1427.982344][ T10] netdev_get_by_index+0x5e/0x80 [ 1427.982344][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1427.982344][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1427.982344][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1427.982344][ T10] ipv6_add_addr+0x411/0x2000 [ 1427.982344][ T10] inet6_addr_add+0x30e/0xa40 [ 1427.982344][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1427.982344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.982344][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.982344][ T10] netlink_unicast+0x449/0x710 [ 1427.982344][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.982344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.982344][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.982344][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.982344][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.982344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.982344][ T10] [ 1427.984631][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1427.984631][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1427.984631][ T10] ipv6_find_idev+0x102/0x170 [ 1427.984631][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.984631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.984631][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.984631][ T10] netlink_unicast+0x449/0x710 [ 1427.984631][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.984631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.984631][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.984631][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.984631][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.984631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.984631][ T10] [ 1427.986368][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1427.986368][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1427.986368][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1427.986368][ T10] ipv6_find_idev+0x102/0x170 [ 1427.986368][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.986368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.986368][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.986368][ T10] netlink_unicast+0x449/0x710 [ 1427.986368][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.986368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.986368][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.986368][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.986368][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.986368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.986368][ T10] [ 1427.988302][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1427.988622][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1427.988622][ T10] netdev_get_by_index+0x5e/0x80 [ 1427.988622][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1427.988622][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1427.988622][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1427.988622][ T10] ipv6_add_addr+0x411/0x2000 [ 1427.988622][ T10] inet6_addr_add+0x30e/0xa40 [ 1427.988622][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1427.988622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.988622][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.988622][ T10] netlink_unicast+0x449/0x710 [ 1427.988622][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.988622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.988622][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.988622][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.988622][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.988622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.988622][ T10] [ 1427.990901][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1427.990901][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1427.990901][ T10] ipv6_find_idev+0x102/0x170 [ 1427.990901][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.990901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.990901][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.990901][ T10] netlink_unicast+0x449/0x710 [ 1427.990901][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.990901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.990901][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.990901][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.990901][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.990901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.990901][ T10] [ 1427.992725][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1427.992725][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1427.992725][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1427.992725][ T10] ipv6_find_idev+0x102/0x170 [ 1427.992725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.992725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.992725][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.992725][ T10] netlink_unicast+0x449/0x710 [ 1427.992725][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.992725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.992725][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.992725][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.992725][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.992725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.992725][ T10] [ 1427.995002][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1427.995345][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1427.995345][ T10] netdev_get_by_index+0x5e/0x80 [ 1427.995345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1427.995345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1427.995345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1427.995345][ T10] ipv6_add_addr+0x411/0x2000 [ 1427.995345][ T10] inet6_addr_add+0x30e/0xa40 [ 1427.995345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1427.995345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.995345][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.995345][ T10] netlink_unicast+0x449/0x710 [ 1427.995345][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.995345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.995345][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.995345][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.995345][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.995345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.995345][ T10] [ 1427.997818][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1427.997818][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1427.997818][ T10] ipv6_find_idev+0x102/0x170 [ 1427.997818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.997818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.997818][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.997818][ T10] netlink_unicast+0x449/0x710 [ 1427.997818][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.997818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.997818][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.997818][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.997818][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.997818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.997818][ T10] [ 1427.999762][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1427.999762][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1427.999762][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1427.999762][ T10] ipv6_find_idev+0x102/0x170 [ 1427.999762][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1427.999762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1427.999762][ T10] netlink_rcv_skb+0x130/0x360 [ 1427.999762][ T10] netlink_unicast+0x449/0x710 [ 1427.999762][ T10] netlink_sendmsg+0x723/0xbe0 [ 1427.999762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1427.999762][ T10] ___sys_sendmsg+0xee/0x170 [ 1427.999762][ T10] __sys_sendmsg+0xcd/0x170 [ 1427.999762][ T10] do_syscall_64+0xc6/0x1e0 [ 1427.999762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1427.999762][ T10] [ 1428.002015][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1428.002368][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1428.002368][ T10] netdev_get_by_index+0x5e/0x80 [ 1428.002368][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1428.002368][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1428.002368][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1428.002368][ T10] ipv6_add_addr+0x411/0x2000 [ 1428.002368][ T10] inet6_addr_add+0x30e/0xa40 [ 1428.002368][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1428.002368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1428.002368][ T10] netlink_rcv_skb+0x130/0x360 [ 1428.002368][ T10] netlink_unicast+0x449/0x710 [ 1428.002368][ T10] netlink_sendmsg+0x723/0xbe0 [ 1428.002368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1428.002368][ T10] ___sys_sendmsg+0xee/0x170 [ 1428.002368][ T10] __sys_sendmsg+0xcd/0x170 [ 1428.002368][ T10] do_syscall_64+0xc6/0x1e0 [ 1428.002368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1428.002368][ T10] [ 1428.004909][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1428.004909][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1428.004909][ T10] ipv6_find_idev+0x102/0x170 [ 1428.004909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1428.004909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1428.004909][ T10] netlink_rcv_skb+0x130/0x360 [ 1428.004909][ T10] netlink_unicast+0x449/0x710 [ 1428.004909][ T10] netlink_sendmsg+0x723/0xbe0 [ 1428.004909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1428.004909][ T10] ___sys_sendmsg+0xee/0x170 [ 1428.004909][ T10] __sys_sendmsg+0xcd/0x170 [ 1428.004909][ T10] do_syscall_64+0xc6/0x1e0 [ 1428.004909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1428.004909][ T10] [ 1428.006883][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1428.006883][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1428.006883][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1428.006883][ T10] ipv6_find_idev+0x102/0x170 [ 1428.006883][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1428.006883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1428.006883][ T10] netlink_rcv_skb+0x130/0x360 [ 1428.006883][ T10] netlink_unicast+0x449/0x710 [ 1428.006883][ T10] netlink_sendmsg+0x723/0xbe0 [ 1428.006883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1428.006883][ T10] ___sys_sendmsg+0xee/0x170 [ 1428.006883][ T10] __sys_sendmsg+0xcd/0x170 [ 1428.006883][ T10] do_syscall_64+0xc6/0x1e0 [ 1428.006883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1428.006883][ T10] [ 1438.131741][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1438.132105][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1438.132105][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.132105][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.132105][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.132105][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.132105][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.132105][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.132105][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.132105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.132105][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.132105][ T10] netlink_unicast+0x449/0x710 [ 1438.132105][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.132105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.132105][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.132105][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.132105][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.132105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.132105][ T10] [ 1438.134176][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1438.134176][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.134176][ T10] ipv6_find_idev+0x102/0x170 [ 1438.134176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.134176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.134176][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.134176][ T10] netlink_unicast+0x449/0x710 [ 1438.134176][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.134176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.134176][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.134176][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.134176][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.134176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.134176][ T10] [ 1438.135745][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1438.135745][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.135745][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.135745][ T10] ipv6_find_idev+0x102/0x170 [ 1438.135745][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.135745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.135745][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.135745][ T10] netlink_unicast+0x449/0x710 [ 1438.135745][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.135745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.135745][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.135745][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.135745][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.135745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.135745][ T10] [ 1438.137441][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1438.137732][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1438.137732][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.137732][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.137732][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.137732][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.137732][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.137732][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.137732][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.137732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.137732][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.137732][ T10] netlink_unicast+0x449/0x710 [ 1438.137732][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.137732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.137732][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.137732][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.137732][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.137732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.137732][ T10] [ 1438.139753][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1438.139753][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.139753][ T10] ipv6_find_idev+0x102/0x170 [ 1438.139753][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.139753][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.139753][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.139753][ T10] netlink_unicast+0x449/0x710 [ 1438.139753][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.139753][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.139753][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.139753][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.139753][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.139753][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.139753][ T10] [ 1438.141303][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1438.141303][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.141303][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.141303][ T10] ipv6_find_idev+0x102/0x170 [ 1438.141303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.141303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.141303][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.141303][ T10] netlink_unicast+0x449/0x710 [ 1438.141303][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.141303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.141303][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.141303][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.141303][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.141303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.141303][ T10] [ 1438.143019][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1438.143302][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1438.143302][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.143302][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.143302][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.143302][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.143302][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.143302][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.143302][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.143302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.143302][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.143302][ T10] netlink_unicast+0x449/0x710 [ 1438.143302][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.143302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.143302][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.143302][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.143302][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.143302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.143302][ T10] [ 1438.145343][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1438.145343][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.145343][ T10] ipv6_find_idev+0x102/0x170 [ 1438.145343][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.145343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.145343][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.145343][ T10] netlink_unicast+0x449/0x710 [ 1438.145343][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.145343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.145343][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.145343][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.145343][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.145343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.145343][ T10] [ 1438.146914][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1438.146914][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.146914][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.146914][ T10] ipv6_find_idev+0x102/0x170 [ 1438.146914][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.146914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.146914][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.146914][ T10] netlink_unicast+0x449/0x710 [ 1438.146914][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.146914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.146914][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.146914][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.146914][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.146914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.146914][ T10] [ 1438.148633][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1438.148921][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1438.148921][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.148921][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.148921][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.148921][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.148921][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.148921][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.148921][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.148921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.148921][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.148921][ T10] netlink_unicast+0x449/0x710 [ 1438.148921][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.148921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.148921][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.148921][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.148921][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.148921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.148921][ T10] [ 1438.150953][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1438.150953][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.150953][ T10] ipv6_find_idev+0x102/0x170 [ 1438.150953][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.150953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.150953][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.150953][ T10] netlink_unicast+0x449/0x710 [ 1438.150953][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.150953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.150953][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.150953][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.150953][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.150953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.150953][ T10] [ 1438.152606][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1438.152606][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.152606][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.152606][ T10] ipv6_find_idev+0x102/0x170 [ 1438.152606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.152606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.152606][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.152606][ T10] netlink_unicast+0x449/0x710 [ 1438.152606][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.152606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.152606][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.152606][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.152606][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.152606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.152606][ T10] [ 1438.154952][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1438.155226][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1438.155226][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.155226][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.155226][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.155226][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.155226][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.155226][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.155226][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.155226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.155226][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.155226][ T10] netlink_unicast+0x449/0x710 [ 1438.155226][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.155226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.155226][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.155226][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.155226][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.155226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.155226][ T10] [ 1438.157315][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1438.157315][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.157315][ T10] ipv6_find_idev+0x102/0x170 [ 1438.157315][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.157315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.157315][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.157315][ T10] netlink_unicast+0x449/0x710 [ 1438.157315][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.157315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.157315][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.157315][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.157315][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.157315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.157315][ T10] [ 1438.159020][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1438.159020][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.159020][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.159020][ T10] ipv6_find_idev+0x102/0x170 [ 1438.159020][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.159020][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.159020][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.159020][ T10] netlink_unicast+0x449/0x710 [ 1438.159020][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.159020][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.159020][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.159020][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.159020][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.159020][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.159020][ T10] [ 1438.161015][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1438.161286][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1438.161286][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.161286][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.161286][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.161286][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.161286][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.161286][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.161286][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.161286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.161286][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.161286][ T10] netlink_unicast+0x449/0x710 [ 1438.161286][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.161286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.161286][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.161286][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.161286][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.161286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.161286][ T10] [ 1438.163657][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1438.163657][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.163657][ T10] ipv6_find_idev+0x102/0x170 [ 1438.163657][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.163657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.163657][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.163657][ T10] netlink_unicast+0x449/0x710 [ 1438.163657][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.163657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.163657][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.163657][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.163657][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.163657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.163657][ T10] [ 1438.165546][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1438.165546][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.165546][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.165546][ T10] ipv6_find_idev+0x102/0x170 [ 1438.165546][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.165546][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.165546][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.165546][ T10] netlink_unicast+0x449/0x710 [ 1438.165546][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.165546][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.165546][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.165546][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.165546][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.165546][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.165546][ T10] [ 1438.167393][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1438.167779][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1438.167779][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.167779][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.167779][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.167779][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.167779][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.167779][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.167779][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.167779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.167779][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.167779][ T10] netlink_unicast+0x449/0x710 [ 1438.167779][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.167779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.167779][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.167779][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.167779][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.167779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.167779][ T10] [ 1438.169940][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1438.169940][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.169940][ T10] ipv6_find_idev+0x102/0x170 [ 1438.169940][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.169940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.169940][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.169940][ T10] netlink_unicast+0x449/0x710 [ 1438.169940][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.169940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.169940][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.169940][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.169940][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.169940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.169940][ T10] [ 1438.171678][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1438.171678][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.171678][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.171678][ T10] ipv6_find_idev+0x102/0x170 [ 1438.171678][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.171678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.171678][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.171678][ T10] netlink_unicast+0x449/0x710 [ 1438.171678][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.171678][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.171678][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.171678][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.171678][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.171678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.171678][ T10] [ 1438.173718][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1438.173989][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1438.173989][ T10] netdev_get_by_index+0x5e/0x80 [ 1438.173989][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1438.173989][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1438.173989][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1438.173989][ T10] ipv6_add_addr+0x411/0x2000 [ 1438.173989][ T10] inet6_addr_add+0x30e/0xa40 [ 1438.173989][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1438.173989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.173989][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.173989][ T10] netlink_unicast+0x449/0x710 [ 1438.173989][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.173989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.173989][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.173989][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.173989][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.173989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.173989][ T10] [ 1438.176248][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1438.176248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1438.176248][ T10] ipv6_find_idev+0x102/0x170 [ 1438.176248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.176248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.176248][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.176248][ T10] netlink_unicast+0x449/0x710 [ 1438.176248][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.176248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.176248][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.176248][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.176248][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.176248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.176248][ T10] [ 1438.177969][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1438.177969][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1438.177969][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1438.177969][ T10] ipv6_find_idev+0x102/0x170 [ 1438.177969][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1438.177969][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1438.177969][ T10] netlink_rcv_skb+0x130/0x360 [ 1438.177969][ T10] netlink_unicast+0x449/0x710 [ 1438.177969][ T10] netlink_sendmsg+0x723/0xbe0 [ 1438.177969][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1438.177969][ T10] ___sys_sendmsg+0xee/0x170 [ 1438.177969][ T10] __sys_sendmsg+0xcd/0x170 [ 1438.177969][ T10] do_syscall_64+0xc6/0x1e0 [ 1438.177969][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1438.177969][ T10] [ 1448.331867][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1448.332306][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1448.332306][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.332306][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.332306][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.332306][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.332306][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.332306][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.332306][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.332306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.332306][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.332306][ T10] netlink_unicast+0x449/0x710 [ 1448.332306][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.332306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.332306][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.332306][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.332306][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.332306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.332306][ T10] [ 1448.334391][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1448.334391][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.334391][ T10] ipv6_find_idev+0x102/0x170 [ 1448.334391][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.334391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.334391][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.334391][ T10] netlink_unicast+0x449/0x710 [ 1448.334391][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.334391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.334391][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.334391][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.334391][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.334391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.334391][ T10] [ 1448.335974][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1448.335974][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.335974][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.335974][ T10] ipv6_find_idev+0x102/0x170 [ 1448.335974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.335974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.335974][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.335974][ T10] netlink_unicast+0x449/0x710 [ 1448.335974][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.335974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.335974][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.335974][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.335974][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.335974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.335974][ T10] [ 1448.337678][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1448.337954][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1448.337954][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.337954][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.337954][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.337954][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.337954][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.337954][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.337954][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.337954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.337954][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.337954][ T10] netlink_unicast+0x449/0x710 [ 1448.337954][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.337954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.337954][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.337954][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.337954][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.337954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.337954][ T10] [ 1448.339979][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1448.339979][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.339979][ T10] ipv6_find_idev+0x102/0x170 [ 1448.339979][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.339979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.339979][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.339979][ T10] netlink_unicast+0x449/0x710 [ 1448.339979][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.339979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.339979][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.339979][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.339979][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.339979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.339979][ T10] [ 1448.341536][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1448.341536][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.341536][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.341536][ T10] ipv6_find_idev+0x102/0x170 [ 1448.341536][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.341536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.341536][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.341536][ T10] netlink_unicast+0x449/0x710 [ 1448.341536][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.341536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.341536][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.341536][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.341536][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.341536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.341536][ T10] [ 1448.343250][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1448.343525][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1448.343525][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.343525][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.343525][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.343525][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.343525][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.343525][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.343525][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.343525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.343525][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.343525][ T10] netlink_unicast+0x449/0x710 [ 1448.343525][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.343525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.343525][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.343525][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.343525][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.343525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.343525][ T10] [ 1448.345542][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1448.345542][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.345542][ T10] ipv6_find_idev+0x102/0x170 [ 1448.345542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.345542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.345542][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.345542][ T10] netlink_unicast+0x449/0x710 [ 1448.345542][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.345542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.345542][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.345542][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.345542][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.345542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.345542][ T10] [ 1448.347102][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1448.347102][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.347102][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.347102][ T10] ipv6_find_idev+0x102/0x170 [ 1448.347102][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.347102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.347102][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.347102][ T10] netlink_unicast+0x449/0x710 [ 1448.347102][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.347102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.347102][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.347102][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.347102][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.347102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.347102][ T10] [ 1448.348801][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1448.349071][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1448.349071][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.349071][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.349071][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.349071][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.349071][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.349071][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.349071][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.349071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.349071][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.349071][ T10] netlink_unicast+0x449/0x710 [ 1448.349071][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.349071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.349071][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.349071][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.349071][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.349071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.349071][ T10] [ 1448.351082][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1448.351082][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.351082][ T10] ipv6_find_idev+0x102/0x170 [ 1448.351082][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.351082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.351082][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.351082][ T10] netlink_unicast+0x449/0x710 [ 1448.351082][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.351082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.351082][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.351082][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.351082][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.351082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.351082][ T10] [ 1448.352654][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1448.352654][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.352654][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.352654][ T10] ipv6_find_idev+0x102/0x170 [ 1448.352654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.352654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.352654][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.352654][ T10] netlink_unicast+0x449/0x710 [ 1448.352654][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.352654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.352654][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.352654][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.352654][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.352654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.352654][ T10] [ 1448.354361][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1448.354629][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1448.354629][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.354629][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.354629][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.354629][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.354629][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.354629][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.354629][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.354629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.354629][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.354629][ T10] netlink_unicast+0x449/0x710 [ 1448.354629][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.354629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.354629][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.354629][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.354629][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.354629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.354629][ T10] [ 1448.356655][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1448.356655][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.356655][ T10] ipv6_find_idev+0x102/0x170 [ 1448.356655][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.356655][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.356655][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.356655][ T10] netlink_unicast+0x449/0x710 [ 1448.356655][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.356655][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.356655][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.356655][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.356655][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.356655][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.356655][ T10] [ 1448.358201][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1448.358201][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.358201][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.358201][ T10] ipv6_find_idev+0x102/0x170 [ 1448.358201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.358201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.358201][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.358201][ T10] netlink_unicast+0x449/0x710 [ 1448.358201][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.358201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.358201][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.358201][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.358201][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.358201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.358201][ T10] [ 1448.360298][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1448.360569][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1448.360569][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.360569][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.360569][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.360569][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.360569][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.360569][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.360569][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.360569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.360569][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.360569][ T10] netlink_unicast+0x449/0x710 [ 1448.360569][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.360569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.360569][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.360569][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.360569][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.360569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.360569][ T10] [ 1448.362582][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1448.362582][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.362582][ T10] ipv6_find_idev+0x102/0x170 [ 1448.362582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.362582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.362582][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.362582][ T10] netlink_unicast+0x449/0x710 [ 1448.362582][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.362582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.362582][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.362582][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.362582][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.362582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.362582][ T10] [ 1448.364130][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1448.364130][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.364130][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.364130][ T10] ipv6_find_idev+0x102/0x170 [ 1448.364130][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.364130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.364130][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.364130][ T10] netlink_unicast+0x449/0x710 [ 1448.364130][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.364130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.364130][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.364130][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.364130][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.364130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.364130][ T10] [ 1448.365859][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1448.366126][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1448.366126][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.366126][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.366126][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.366126][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.366126][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.366126][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.366126][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.366126][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.366126][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.366126][ T10] netlink_unicast+0x449/0x710 [ 1448.366126][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.366126][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.366126][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.366126][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.366126][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.366126][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.366126][ T10] [ 1448.368252][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1448.368252][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.368252][ T10] ipv6_find_idev+0x102/0x170 [ 1448.368252][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.368252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.368252][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.368252][ T10] netlink_unicast+0x449/0x710 [ 1448.368252][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.368252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.368252][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.368252][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.368252][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.368252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.368252][ T10] [ 1448.370028][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1448.370028][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.370028][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.370028][ T10] ipv6_find_idev+0x102/0x170 [ 1448.370028][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.370028][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.370028][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.370028][ T10] netlink_unicast+0x449/0x710 [ 1448.370028][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.370028][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.370028][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.370028][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.370028][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.370028][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.370028][ T10] [ 1448.371932][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1448.372195][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1448.372195][ T10] netdev_get_by_index+0x5e/0x80 [ 1448.372195][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1448.372195][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1448.372195][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1448.372195][ T10] ipv6_add_addr+0x411/0x2000 [ 1448.372195][ T10] inet6_addr_add+0x30e/0xa40 [ 1448.372195][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1448.372195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.372195][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.372195][ T10] netlink_unicast+0x449/0x710 [ 1448.372195][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.372195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.372195][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.372195][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.372195][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.372195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.372195][ T10] [ 1448.374435][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1448.374435][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1448.374435][ T10] ipv6_find_idev+0x102/0x170 [ 1448.374435][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.374435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.374435][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.374435][ T10] netlink_unicast+0x449/0x710 [ 1448.374435][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.374435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.374435][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.374435][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.374435][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.374435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.374435][ T10] [ 1448.376146][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1448.376146][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1448.376146][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1448.376146][ T10] ipv6_find_idev+0x102/0x170 [ 1448.376146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1448.376146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1448.376146][ T10] netlink_rcv_skb+0x130/0x360 [ 1448.376146][ T10] netlink_unicast+0x449/0x710 [ 1448.376146][ T10] netlink_sendmsg+0x723/0xbe0 [ 1448.376146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1448.376146][ T10] ___sys_sendmsg+0xee/0x170 [ 1448.376146][ T10] __sys_sendmsg+0xcd/0x170 [ 1448.376146][ T10] do_syscall_64+0xc6/0x1e0 [ 1448.376146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1448.376146][ T10] [ 1458.483663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1458.484013][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1458.484013][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.484013][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.484013][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.484013][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.484013][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.484013][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.484013][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.484013][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.484013][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.484013][ T10] netlink_unicast+0x449/0x710 [ 1458.484013][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.484013][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.484013][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.484013][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.484013][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.484013][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.484013][ T10] [ 1458.486052][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1458.486052][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.486052][ T10] ipv6_find_idev+0x102/0x170 [ 1458.486052][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.486052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.486052][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.486052][ T10] netlink_unicast+0x449/0x710 [ 1458.486052][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.486052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.486052][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.486052][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.486052][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.486052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.486052][ T10] [ 1458.487590][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1458.487590][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.487590][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.487590][ T10] ipv6_find_idev+0x102/0x170 [ 1458.487590][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.487590][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.487590][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.487590][ T10] netlink_unicast+0x449/0x710 [ 1458.487590][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.487590][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.487590][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.487590][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.487590][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.487590][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.487590][ T10] [ 1458.489297][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1458.489574][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1458.489574][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.489574][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.489574][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.489574][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.489574][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.489574][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.489574][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.489574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.489574][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.489574][ T10] netlink_unicast+0x449/0x710 [ 1458.489574][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.489574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.489574][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.489574][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.489574][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.489574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.489574][ T10] [ 1458.491577][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1458.491577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.491577][ T10] ipv6_find_idev+0x102/0x170 [ 1458.491577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.491577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.491577][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.491577][ T10] netlink_unicast+0x449/0x710 [ 1458.491577][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.491577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.491577][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.491577][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.491577][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.491577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.491577][ T10] [ 1458.493129][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1458.493129][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.493129][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.493129][ T10] ipv6_find_idev+0x102/0x170 [ 1458.493129][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.493129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.493129][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.493129][ T10] netlink_unicast+0x449/0x710 [ 1458.493129][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.493129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.493129][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.493129][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.493129][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.493129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.493129][ T10] [ 1458.494826][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1458.495101][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1458.495101][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.495101][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.495101][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.495101][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.495101][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.495101][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.495101][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.495101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.495101][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.495101][ T10] netlink_unicast+0x449/0x710 [ 1458.495101][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.495101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.495101][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.495101][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.495101][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.495101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.495101][ T10] [ 1458.497099][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1458.497099][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.497099][ T10] ipv6_find_idev+0x102/0x170 [ 1458.497099][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.497099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.497099][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.497099][ T10] netlink_unicast+0x449/0x710 [ 1458.497099][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.497099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.497099][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.497099][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.497099][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.497099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.497099][ T10] [ 1458.498693][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1458.498693][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.498693][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.498693][ T10] ipv6_find_idev+0x102/0x170 [ 1458.498693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.498693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.498693][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.498693][ T10] netlink_unicast+0x449/0x710 [ 1458.498693][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.498693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.498693][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.498693][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.498693][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.498693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.498693][ T10] [ 1458.500560][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1458.500844][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1458.500844][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.500844][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.500844][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.500844][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.500844][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.500844][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.500844][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.500844][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.500844][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.500844][ T10] netlink_unicast+0x449/0x710 [ 1458.500844][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.500844][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.500844][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.500844][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.500844][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.500844][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.500844][ T10] [ 1458.503050][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1458.503050][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.503050][ T10] ipv6_find_idev+0x102/0x170 [ 1458.503050][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.503050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.503050][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.503050][ T10] netlink_unicast+0x449/0x710 [ 1458.503050][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.503050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.503050][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.503050][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.503050][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.503050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.503050][ T10] [ 1458.504731][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1458.504731][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.504731][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.504731][ T10] ipv6_find_idev+0x102/0x170 [ 1458.504731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.504731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.504731][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.504731][ T10] netlink_unicast+0x449/0x710 [ 1458.504731][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.504731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.504731][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.504731][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.504731][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.504731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.504731][ T10] [ 1458.506720][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1458.507004][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1458.507004][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.507004][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.507004][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.507004][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.507004][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.507004][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.507004][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.507004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.507004][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.507004][ T10] netlink_unicast+0x449/0x710 [ 1458.507004][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.507004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.507004][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.507004][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.507004][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.507004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.507004][ T10] [ 1458.509218][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1458.509218][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.509218][ T10] ipv6_find_idev+0x102/0x170 [ 1458.509218][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.509218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.509218][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.509218][ T10] netlink_unicast+0x449/0x710 [ 1458.509218][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.509218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.509218][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.509218][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.509218][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.509218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.509218][ T10] [ 1458.510885][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1458.510885][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.510885][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.510885][ T10] ipv6_find_idev+0x102/0x170 [ 1458.510885][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.510885][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.510885][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.510885][ T10] netlink_unicast+0x449/0x710 [ 1458.510885][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.510885][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.510885][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.510885][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.510885][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.510885][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.510885][ T10] [ 1458.513265][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1458.514028][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1458.514028][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.514028][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.514028][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.514028][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.514028][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.514028][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.514028][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.514028][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.514028][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.514028][ T10] netlink_unicast+0x449/0x710 [ 1458.514028][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.514028][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.514028][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.514028][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.514028][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.514028][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.514028][ T10] [ 1458.516012][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1458.516012][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.516012][ T10] ipv6_find_idev+0x102/0x170 [ 1458.516012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.516012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.516012][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.516012][ T10] netlink_unicast+0x449/0x710 [ 1458.516012][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.516012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.516012][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.516012][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.516012][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.516012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.516012][ T10] [ 1458.517545][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1458.517545][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.517545][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.517545][ T10] ipv6_find_idev+0x102/0x170 [ 1458.517545][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.517545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.517545][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.517545][ T10] netlink_unicast+0x449/0x710 [ 1458.517545][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.517545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.517545][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.517545][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.517545][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.517545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.517545][ T10] [ 1458.519273][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1458.519551][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1458.519551][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.519551][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.519551][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.519551][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.519551][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.519551][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.519551][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.519551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.519551][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.519551][ T10] netlink_unicast+0x449/0x710 [ 1458.519551][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.519551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.519551][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.519551][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.519551][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.519551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.519551][ T10] [ 1458.521721][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1458.521721][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.521721][ T10] ipv6_find_idev+0x102/0x170 [ 1458.521721][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.521721][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.521721][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.521721][ T10] netlink_unicast+0x449/0x710 [ 1458.521721][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.521721][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.521721][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.521721][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.521721][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.521721][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.521721][ T10] [ 1458.523442][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1458.523442][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.523442][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.523442][ T10] ipv6_find_idev+0x102/0x170 [ 1458.523442][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.523442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.523442][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.523442][ T10] netlink_unicast+0x449/0x710 [ 1458.523442][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.523442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.523442][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.523442][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.523442][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.523442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.523442][ T10] [ 1458.525349][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1458.525615][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1458.525615][ T10] netdev_get_by_index+0x5e/0x80 [ 1458.525615][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1458.525615][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1458.525615][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1458.525615][ T10] ipv6_add_addr+0x411/0x2000 [ 1458.525615][ T10] inet6_addr_add+0x30e/0xa40 [ 1458.525615][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1458.525615][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.525615][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.525615][ T10] netlink_unicast+0x449/0x710 [ 1458.525615][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.525615][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.525615][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.525615][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.525615][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.525615][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.525615][ T10] [ 1458.527835][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1458.527835][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1458.527835][ T10] ipv6_find_idev+0x102/0x170 [ 1458.527835][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.527835][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.527835][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.527835][ T10] netlink_unicast+0x449/0x710 [ 1458.527835][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.527835][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.527835][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.527835][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.527835][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.527835][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.527835][ T10] [ 1458.529629][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1458.529629][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1458.529629][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1458.529629][ T10] ipv6_find_idev+0x102/0x170 [ 1458.529629][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1458.529629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1458.529629][ T10] netlink_rcv_skb+0x130/0x360 [ 1458.529629][ T10] netlink_unicast+0x449/0x710 [ 1458.529629][ T10] netlink_sendmsg+0x723/0xbe0 [ 1458.529629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1458.529629][ T10] ___sys_sendmsg+0xee/0x170 [ 1458.529629][ T10] __sys_sendmsg+0xcd/0x170 [ 1458.529629][ T10] do_syscall_64+0xc6/0x1e0 [ 1458.529629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1458.529629][ T10] [ 1468.619796][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1468.620335][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1468.620335][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.620335][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.620335][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.620335][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.620335][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.620335][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.620335][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.620335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.620335][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.620335][ T10] netlink_unicast+0x449/0x710 [ 1468.620335][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.620335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.620335][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.620335][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.620335][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.620335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.620335][ T10] [ 1468.622689][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1468.622689][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.622689][ T10] ipv6_find_idev+0x102/0x170 [ 1468.622689][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.622689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.622689][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.622689][ T10] netlink_unicast+0x449/0x710 [ 1468.622689][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.622689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.622689][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.622689][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.622689][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.622689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.622689][ T10] [ 1468.624503][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1468.624503][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.624503][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.624503][ T10] ipv6_find_idev+0x102/0x170 [ 1468.624503][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.624503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.624503][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.624503][ T10] netlink_unicast+0x449/0x710 [ 1468.624503][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.624503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.624503][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.624503][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.624503][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.624503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.624503][ T10] [ 1468.626486][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1468.626825][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1468.626825][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.626825][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.626825][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.626825][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.626825][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.626825][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.626825][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.626825][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.626825][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.626825][ T10] netlink_unicast+0x449/0x710 [ 1468.626825][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.626825][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.626825][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.626825][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.626825][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.626825][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.626825][ T10] [ 1468.629101][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1468.629101][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.629101][ T10] ipv6_find_idev+0x102/0x170 [ 1468.629101][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.629101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.629101][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.629101][ T10] netlink_unicast+0x449/0x710 [ 1468.629101][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.629101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.629101][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.629101][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.629101][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.629101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.629101][ T10] [ 1468.630863][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1468.630863][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.630863][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.630863][ T10] ipv6_find_idev+0x102/0x170 [ 1468.630863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.630863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.630863][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.630863][ T10] netlink_unicast+0x449/0x710 [ 1468.630863][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.630863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.630863][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.630863][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.630863][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.630863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.630863][ T10] [ 1468.632813][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1468.633123][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1468.633123][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.633123][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.633123][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.633123][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.633123][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.633123][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.633123][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.633123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.633123][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.633123][ T10] netlink_unicast+0x449/0x710 [ 1468.633123][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.633123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.633123][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.633123][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.633123][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.633123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.633123][ T10] [ 1468.635386][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1468.635386][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.635386][ T10] ipv6_find_idev+0x102/0x170 [ 1468.635386][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.635386][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.635386][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.635386][ T10] netlink_unicast+0x449/0x710 [ 1468.635386][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.635386][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.635386][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.635386][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.635386][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.635386][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.635386][ T10] [ 1468.637124][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1468.637124][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.637124][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.637124][ T10] ipv6_find_idev+0x102/0x170 [ 1468.637124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.637124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.637124][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.637124][ T10] netlink_unicast+0x449/0x710 [ 1468.637124][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.637124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.637124][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.637124][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.637124][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.637124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.637124][ T10] [ 1468.639028][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1468.639332][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1468.639332][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.639332][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.639332][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.639332][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.639332][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.639332][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.639332][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.639332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.639332][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.639332][ T10] netlink_unicast+0x449/0x710 [ 1468.639332][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.639332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.639332][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.639332][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.639332][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.639332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.639332][ T10] [ 1468.641582][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1468.641582][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.641582][ T10] ipv6_find_idev+0x102/0x170 [ 1468.641582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.641582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.641582][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.641582][ T10] netlink_unicast+0x449/0x710 [ 1468.641582][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.641582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.641582][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.641582][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.641582][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.641582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.641582][ T10] [ 1468.643330][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1468.643330][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.643330][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.643330][ T10] ipv6_find_idev+0x102/0x170 [ 1468.643330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.643330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.643330][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.643330][ T10] netlink_unicast+0x449/0x710 [ 1468.643330][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.643330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.643330][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.643330][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.643330][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.643330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.643330][ T10] [ 1468.645694][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1468.646044][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1468.646044][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.646044][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.646044][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.646044][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.646044][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.646044][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.646044][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.646044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.646044][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.646044][ T10] netlink_unicast+0x449/0x710 [ 1468.646044][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.646044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.646044][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.646044][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.646044][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.646044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.646044][ T10] [ 1468.648290][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1468.648290][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.648290][ T10] ipv6_find_idev+0x102/0x170 [ 1468.648290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.648290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.648290][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.648290][ T10] netlink_unicast+0x449/0x710 [ 1468.648290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.648290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.648290][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.648290][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.648290][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.648290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.648290][ T10] [ 1468.650036][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1468.650036][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.650036][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.650036][ T10] ipv6_find_idev+0x102/0x170 [ 1468.650036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.650036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.650036][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.650036][ T10] netlink_unicast+0x449/0x710 [ 1468.650036][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.650036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.650036][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.650036][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.650036][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.650036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.650036][ T10] [ 1468.651992][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1468.652339][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1468.652339][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.652339][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.652339][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.652339][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.652339][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.652339][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.652339][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.652339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.652339][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.652339][ T10] netlink_unicast+0x449/0x710 [ 1468.652339][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.652339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.652339][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.652339][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.652339][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.652339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.652339][ T10] [ 1468.654666][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1468.654666][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.654666][ T10] ipv6_find_idev+0x102/0x170 [ 1468.654666][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.654666][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.654666][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.654666][ T10] netlink_unicast+0x449/0x710 [ 1468.654666][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.654666][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.654666][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.654666][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.654666][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.654666][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.654666][ T10] [ 1468.656645][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1468.656645][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.656645][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.656645][ T10] ipv6_find_idev+0x102/0x170 [ 1468.656645][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.656645][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.656645][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.656645][ T10] netlink_unicast+0x449/0x710 [ 1468.656645][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.656645][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.656645][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.656645][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.656645][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.656645][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.656645][ T10] [ 1468.658776][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1468.659120][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1468.659120][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.659120][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.659120][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.659120][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.659120][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.659120][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.659120][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.659120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.659120][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.659120][ T10] netlink_unicast+0x449/0x710 [ 1468.659120][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.659120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.659120][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.659120][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.659120][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.659120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.659120][ T10] [ 1468.661577][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1468.661577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.661577][ T10] ipv6_find_idev+0x102/0x170 [ 1468.661577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.661577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.661577][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.661577][ T10] netlink_unicast+0x449/0x710 [ 1468.661577][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.661577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.661577][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.661577][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.661577][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.661577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.661577][ T10] [ 1468.663521][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1468.663521][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.663521][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.663521][ T10] ipv6_find_idev+0x102/0x170 [ 1468.663521][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.663521][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.663521][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.663521][ T10] netlink_unicast+0x449/0x710 [ 1468.663521][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.663521][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.663521][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.663521][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.663521][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.663521][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.663521][ T10] [ 1468.665664][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1468.666012][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1468.666012][ T10] netdev_get_by_index+0x5e/0x80 [ 1468.666012][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1468.666012][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1468.666012][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1468.666012][ T10] ipv6_add_addr+0x411/0x2000 [ 1468.666012][ T10] inet6_addr_add+0x30e/0xa40 [ 1468.666012][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1468.666012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.666012][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.666012][ T10] netlink_unicast+0x449/0x710 [ 1468.666012][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.666012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.666012][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.666012][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.666012][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.666012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.666012][ T10] [ 1468.668411][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1468.668411][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1468.668411][ T10] ipv6_find_idev+0x102/0x170 [ 1468.668411][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.668411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.668411][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.668411][ T10] netlink_unicast+0x449/0x710 [ 1468.668411][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.668411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.668411][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.668411][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.668411][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.668411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.668411][ T10] [ 1468.670376][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1468.670376][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1468.670376][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1468.670376][ T10] ipv6_find_idev+0x102/0x170 [ 1468.670376][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1468.670376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1468.670376][ T10] netlink_rcv_skb+0x130/0x360 [ 1468.670376][ T10] netlink_unicast+0x449/0x710 [ 1468.670376][ T10] netlink_sendmsg+0x723/0xbe0 [ 1468.670376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1468.670376][ T10] ___sys_sendmsg+0xee/0x170 [ 1468.670376][ T10] __sys_sendmsg+0xcd/0x170 [ 1468.670376][ T10] do_syscall_64+0xc6/0x1e0 [ 1468.670376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1468.670376][ T10] [ 1478.907781][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1478.908305][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1478.908305][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.908305][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.908305][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.908305][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.908305][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.908305][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.908305][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.908305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.908305][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.908305][ T10] netlink_unicast+0x449/0x710 [ 1478.908305][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.908305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.908305][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.908305][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.908305][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.908305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.908305][ T10] [ 1478.910650][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1478.910650][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.910650][ T10] ipv6_find_idev+0x102/0x170 [ 1478.910650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.910650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.910650][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.910650][ T10] netlink_unicast+0x449/0x710 [ 1478.910650][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.910650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.910650][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.910650][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.910650][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.910650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.910650][ T10] [ 1478.912423][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1478.912423][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.912423][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.912423][ T10] ipv6_find_idev+0x102/0x170 [ 1478.912423][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.912423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.912423][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.912423][ T10] netlink_unicast+0x449/0x710 [ 1478.912423][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.912423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.912423][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.912423][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.912423][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.912423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.912423][ T10] [ 1478.914380][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1478.914695][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1478.914695][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.914695][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.914695][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.914695][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.914695][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.914695][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.914695][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.914695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.914695][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.914695][ T10] netlink_unicast+0x449/0x710 [ 1478.914695][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.914695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.914695][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.914695][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.914695][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.914695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.914695][ T10] [ 1478.916968][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1478.916968][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.916968][ T10] ipv6_find_idev+0x102/0x170 [ 1478.916968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.916968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.916968][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.916968][ T10] netlink_unicast+0x449/0x710 [ 1478.916968][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.916968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.916968][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.916968][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.916968][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.916968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.916968][ T10] [ 1478.918725][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1478.918725][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.918725][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.918725][ T10] ipv6_find_idev+0x102/0x170 [ 1478.918725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.918725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.918725][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.918725][ T10] netlink_unicast+0x449/0x710 [ 1478.918725][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.918725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.918725][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.918725][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.918725][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.918725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.918725][ T10] [ 1478.920680][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1478.920987][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1478.920987][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.920987][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.920987][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.920987][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.920987][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.920987][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.920987][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.920987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.920987][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.920987][ T10] netlink_unicast+0x449/0x710 [ 1478.920987][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.920987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.920987][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.920987][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.920987][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.920987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.920987][ T10] [ 1478.923261][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1478.923261][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.923261][ T10] ipv6_find_idev+0x102/0x170 [ 1478.923261][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.923261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.923261][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.923261][ T10] netlink_unicast+0x449/0x710 [ 1478.923261][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.923261][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.923261][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.923261][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.923261][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.923261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.923261][ T10] [ 1478.925011][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1478.925011][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.925011][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.925011][ T10] ipv6_find_idev+0x102/0x170 [ 1478.925011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.925011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.925011][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.925011][ T10] netlink_unicast+0x449/0x710 [ 1478.925011][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.925011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.925011][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.925011][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.925011][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.925011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.925011][ T10] [ 1478.926925][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1478.927228][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1478.927228][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.927228][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.927228][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.927228][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.927228][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.927228][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.927228][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.927228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.927228][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.927228][ T10] netlink_unicast+0x449/0x710 [ 1478.927228][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.927228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.927228][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.927228][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.927228][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.927228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.927228][ T10] [ 1478.929477][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1478.929477][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.929477][ T10] ipv6_find_idev+0x102/0x170 [ 1478.929477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.929477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.929477][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.929477][ T10] netlink_unicast+0x449/0x710 [ 1478.929477][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.929477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.929477][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.929477][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.929477][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.929477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.929477][ T10] [ 1478.931209][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1478.931209][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.931209][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.931209][ T10] ipv6_find_idev+0x102/0x170 [ 1478.931209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.931209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.931209][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.931209][ T10] netlink_unicast+0x449/0x710 [ 1478.931209][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.931209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.931209][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.931209][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.931209][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.931209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.931209][ T10] [ 1478.933517][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1478.934163][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1478.934163][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.934163][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.934163][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.934163][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.934163][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.934163][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.934163][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.934163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.934163][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.934163][ T10] netlink_unicast+0x449/0x710 [ 1478.934163][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.934163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.934163][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.934163][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.934163][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.934163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.934163][ T10] [ 1478.936395][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1478.936395][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.936395][ T10] ipv6_find_idev+0x102/0x170 [ 1478.936395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.936395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.936395][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.936395][ T10] netlink_unicast+0x449/0x710 [ 1478.936395][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.936395][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.936395][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.936395][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.936395][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.936395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.936395][ T10] [ 1478.938109][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1478.938109][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.938109][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.938109][ T10] ipv6_find_idev+0x102/0x170 [ 1478.938109][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.938109][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.938109][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.938109][ T10] netlink_unicast+0x449/0x710 [ 1478.938109][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.938109][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.938109][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.938109][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.938109][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.938109][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.938109][ T10] [ 1478.939985][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1478.940279][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1478.940279][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.940279][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.940279][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.940279][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.940279][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.940279][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.940279][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.940279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.940279][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.940279][ T10] netlink_unicast+0x449/0x710 [ 1478.940279][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.940279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.940279][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.940279][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.940279][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.940279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.940279][ T10] [ 1478.942510][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1478.942510][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.942510][ T10] ipv6_find_idev+0x102/0x170 [ 1478.942510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.942510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.942510][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.942510][ T10] netlink_unicast+0x449/0x710 [ 1478.942510][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.942510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.942510][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.942510][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.942510][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.942510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.942510][ T10] [ 1478.944322][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1478.944322][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.944322][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.944322][ T10] ipv6_find_idev+0x102/0x170 [ 1478.944322][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.944322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.944322][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.944322][ T10] netlink_unicast+0x449/0x710 [ 1478.944322][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.944322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.944322][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.944322][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.944322][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.944322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.944322][ T10] [ 1478.946459][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1478.946814][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1478.946814][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.946814][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.946814][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.946814][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.946814][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.946814][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.946814][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.946814][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.946814][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.946814][ T10] netlink_unicast+0x449/0x710 [ 1478.946814][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.946814][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.946814][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.946814][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.946814][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.946814][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.946814][ T10] [ 1478.949251][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1478.949251][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.949251][ T10] ipv6_find_idev+0x102/0x170 [ 1478.949251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.949251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.949251][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.949251][ T10] netlink_unicast+0x449/0x710 [ 1478.949251][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.949251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.949251][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.949251][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.949251][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.949251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.949251][ T10] [ 1478.951172][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1478.951172][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.951172][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.951172][ T10] ipv6_find_idev+0x102/0x170 [ 1478.951172][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.951172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.951172][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.951172][ T10] netlink_unicast+0x449/0x710 [ 1478.951172][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.951172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.951172][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.951172][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.951172][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.951172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.951172][ T10] [ 1478.953370][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1478.953732][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1478.953732][ T10] netdev_get_by_index+0x5e/0x80 [ 1478.953732][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1478.953732][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1478.953732][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1478.953732][ T10] ipv6_add_addr+0x411/0x2000 [ 1478.953732][ T10] inet6_addr_add+0x30e/0xa40 [ 1478.953732][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1478.953732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.953732][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.953732][ T10] netlink_unicast+0x449/0x710 [ 1478.953732][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.953732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.953732][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.953732][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.953732][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.953732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.953732][ T10] [ 1478.956165][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1478.956165][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1478.956165][ T10] ipv6_find_idev+0x102/0x170 [ 1478.956165][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.956165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.956165][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.956165][ T10] netlink_unicast+0x449/0x710 [ 1478.956165][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.956165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.956165][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.956165][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.956165][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.956165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.956165][ T10] [ 1478.958075][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1478.958075][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1478.958075][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1478.958075][ T10] ipv6_find_idev+0x102/0x170 [ 1478.958075][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1478.958075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1478.958075][ T10] netlink_rcv_skb+0x130/0x360 [ 1478.958075][ T10] netlink_unicast+0x449/0x710 [ 1478.958075][ T10] netlink_sendmsg+0x723/0xbe0 [ 1478.958075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1478.958075][ T10] ___sys_sendmsg+0xee/0x170 [ 1478.958075][ T10] __sys_sendmsg+0xcd/0x170 [ 1478.958075][ T10] do_syscall_64+0xc6/0x1e0 [ 1478.958075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1478.958075][ T10] [ 1488.980859][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1488.981266][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1488.981266][ T10] netdev_get_by_index+0x5e/0x80 [ 1488.981266][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1488.981266][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1488.981266][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1488.981266][ T10] ipv6_add_addr+0x411/0x2000 [ 1488.981266][ T10] inet6_addr_add+0x30e/0xa40 [ 1488.981266][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1488.981266][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.981266][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.981266][ T10] netlink_unicast+0x449/0x710 [ 1488.981266][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.981266][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.981266][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.981266][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.981266][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.981266][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.981266][ T10] [ 1488.983639][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1488.983639][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1488.983639][ T10] ipv6_find_idev+0x102/0x170 [ 1488.983639][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1488.983639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.983639][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.983639][ T10] netlink_unicast+0x449/0x710 [ 1488.983639][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.983639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.983639][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.983639][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.983639][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.983639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.983639][ T10] [ 1488.985845][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1488.985845][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1488.985845][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1488.985845][ T10] ipv6_find_idev+0x102/0x170 [ 1488.985845][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1488.985845][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.985845][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.985845][ T10] netlink_unicast+0x449/0x710 [ 1488.985845][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.985845][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.985845][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.985845][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.985845][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.985845][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.985845][ T10] [ 1488.988072][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1488.988402][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1488.988402][ T10] netdev_get_by_index+0x5e/0x80 [ 1488.988402][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1488.988402][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1488.988402][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1488.988402][ T10] ipv6_add_addr+0x411/0x2000 [ 1488.988402][ T10] inet6_addr_add+0x30e/0xa40 [ 1488.988402][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1488.988402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.988402][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.988402][ T10] netlink_unicast+0x449/0x710 [ 1488.988402][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.988402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.988402][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.988402][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.988402][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.988402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.988402][ T10] [ 1488.990877][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1488.990877][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1488.990877][ T10] ipv6_find_idev+0x102/0x170 [ 1488.990877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1488.990877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.990877][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.990877][ T10] netlink_unicast+0x449/0x710 [ 1488.990877][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.990877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.990877][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.990877][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.990877][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.990877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.990877][ T10] [ 1488.992648][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1488.992648][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1488.992648][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1488.992648][ T10] ipv6_find_idev+0x102/0x170 [ 1488.992648][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1488.992648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.992648][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.992648][ T10] netlink_unicast+0x449/0x710 [ 1488.992648][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.992648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.992648][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.992648][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.992648][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.992648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.992648][ T10] [ 1488.994656][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1488.994968][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1488.994968][ T10] netdev_get_by_index+0x5e/0x80 [ 1488.994968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1488.994968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1488.994968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1488.994968][ T10] ipv6_add_addr+0x411/0x2000 [ 1488.994968][ T10] inet6_addr_add+0x30e/0xa40 [ 1488.994968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1488.994968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.994968][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.994968][ T10] netlink_unicast+0x449/0x710 [ 1488.994968][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.994968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.994968][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.994968][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.994968][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.994968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.994968][ T10] [ 1488.997313][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1488.997313][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1488.997313][ T10] ipv6_find_idev+0x102/0x170 [ 1488.997313][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1488.997313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.997313][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.997313][ T10] netlink_unicast+0x449/0x710 [ 1488.997313][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.997313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.997313][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.997313][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.997313][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.997313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.997313][ T10] [ 1488.999093][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1488.999093][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1488.999093][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1488.999093][ T10] ipv6_find_idev+0x102/0x170 [ 1488.999093][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1488.999093][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1488.999093][ T10] netlink_rcv_skb+0x130/0x360 [ 1488.999093][ T10] netlink_unicast+0x449/0x710 [ 1488.999093][ T10] netlink_sendmsg+0x723/0xbe0 [ 1488.999093][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1488.999093][ T10] ___sys_sendmsg+0xee/0x170 [ 1488.999093][ T10] __sys_sendmsg+0xcd/0x170 [ 1488.999093][ T10] do_syscall_64+0xc6/0x1e0 [ 1488.999093][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1488.999093][ T10] [ 1489.001262][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1489.001647][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1489.001647][ T10] netdev_get_by_index+0x5e/0x80 [ 1489.001647][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1489.001647][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1489.001647][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1489.001647][ T10] ipv6_add_addr+0x411/0x2000 [ 1489.001647][ T10] inet6_addr_add+0x30e/0xa40 [ 1489.001647][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1489.001647][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.001647][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.001647][ T10] netlink_unicast+0x449/0x710 [ 1489.001647][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.001647][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.001647][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.001647][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.001647][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.001647][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.001647][ T10] [ 1489.003959][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1489.003959][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1489.003959][ T10] ipv6_find_idev+0x102/0x170 [ 1489.003959][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.003959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.003959][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.003959][ T10] netlink_unicast+0x449/0x710 [ 1489.003959][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.003959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.003959][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.003959][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.003959][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.003959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.003959][ T10] [ 1489.005765][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1489.005765][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1489.005765][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1489.005765][ T10] ipv6_find_idev+0x102/0x170 [ 1489.005765][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.005765][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.005765][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.005765][ T10] netlink_unicast+0x449/0x710 [ 1489.005765][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.005765][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.005765][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.005765][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.005765][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.005765][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.005765][ T10] [ 1489.008175][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1489.008536][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1489.008536][ T10] netdev_get_by_index+0x5e/0x80 [ 1489.008536][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1489.008536][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1489.008536][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1489.008536][ T10] ipv6_add_addr+0x411/0x2000 [ 1489.008536][ T10] inet6_addr_add+0x30e/0xa40 [ 1489.008536][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1489.008536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.008536][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.008536][ T10] netlink_unicast+0x449/0x710 [ 1489.008536][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.008536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.008536][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.008536][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.008536][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.008536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.008536][ T10] [ 1489.010956][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1489.010956][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1489.010956][ T10] ipv6_find_idev+0x102/0x170 [ 1489.010956][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.010956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.010956][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.010956][ T10] netlink_unicast+0x449/0x710 [ 1489.010956][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.010956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.010956][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.010956][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.010956][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.010956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.010956][ T10] [ 1489.012996][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1489.012996][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1489.012996][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1489.012996][ T10] ipv6_find_idev+0x102/0x170 [ 1489.012996][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.012996][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.012996][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.012996][ T10] netlink_unicast+0x449/0x710 [ 1489.012996][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.012996][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.012996][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.012996][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.012996][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.012996][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.012996][ T10] [ 1489.015252][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1489.015603][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1489.015603][ T10] netdev_get_by_index+0x5e/0x80 [ 1489.015603][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1489.015603][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1489.015603][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1489.015603][ T10] ipv6_add_addr+0x411/0x2000 [ 1489.015603][ T10] inet6_addr_add+0x30e/0xa40 [ 1489.015603][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1489.015603][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.015603][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.015603][ T10] netlink_unicast+0x449/0x710 [ 1489.015603][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.015603][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.015603][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.015603][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.015603][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.015603][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.015603][ T10] [ 1489.018150][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1489.018150][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1489.018150][ T10] ipv6_find_idev+0x102/0x170 [ 1489.018150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.018150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.018150][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.018150][ T10] netlink_unicast+0x449/0x710 [ 1489.018150][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.018150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.018150][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.018150][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.018150][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.018150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.018150][ T10] [ 1489.020132][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1489.020132][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1489.020132][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1489.020132][ T10] ipv6_find_idev+0x102/0x170 [ 1489.020132][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.020132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.020132][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.020132][ T10] netlink_unicast+0x449/0x710 [ 1489.020132][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.020132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.020132][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.020132][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.020132][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.020132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.020132][ T10] [ 1489.022132][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1489.022493][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1489.022493][ T10] netdev_get_by_index+0x5e/0x80 [ 1489.022493][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1489.022493][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1489.022493][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1489.022493][ T10] ipv6_add_addr+0x411/0x2000 [ 1489.022493][ T10] inet6_addr_add+0x30e/0xa40 [ 1489.022493][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1489.022493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.022493][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.022493][ T10] netlink_unicast+0x449/0x710 [ 1489.022493][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.022493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.022493][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.022493][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.022493][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.022493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.022493][ T10] [ 1489.024847][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1489.024847][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1489.024847][ T10] ipv6_find_idev+0x102/0x170 [ 1489.024847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.024847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.024847][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.024847][ T10] netlink_unicast+0x449/0x710 [ 1489.024847][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.024847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.024847][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.024847][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.024847][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.024847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.024847][ T10] [ 1489.026967][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1489.026967][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1489.026967][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1489.026967][ T10] ipv6_find_idev+0x102/0x170 [ 1489.026967][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.026967][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.026967][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.026967][ T10] netlink_unicast+0x449/0x710 [ 1489.026967][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.026967][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.026967][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.026967][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.026967][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.026967][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.026967][ T10] [ 1489.029222][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1489.029725][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1489.029725][ T10] netdev_get_by_index+0x5e/0x80 [ 1489.029725][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1489.029725][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1489.029725][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1489.029725][ T10] ipv6_add_addr+0x411/0x2000 [ 1489.029725][ T10] inet6_addr_add+0x30e/0xa40 [ 1489.029725][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1489.029725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.029725][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.029725][ T10] netlink_unicast+0x449/0x710 [ 1489.029725][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.029725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.029725][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.029725][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.029725][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.029725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.029725][ T10] [ 1489.032444][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1489.032444][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1489.032444][ T10] ipv6_find_idev+0x102/0x170 [ 1489.032444][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.032444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.032444][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.032444][ T10] netlink_unicast+0x449/0x710 [ 1489.032444][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.032444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.032444][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.032444][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.032444][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.032444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.032444][ T10] [ 1489.034449][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1489.034449][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1489.034449][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1489.034449][ T10] ipv6_find_idev+0x102/0x170 [ 1489.034449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1489.034449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1489.034449][ T10] netlink_rcv_skb+0x130/0x360 [ 1489.034449][ T10] netlink_unicast+0x449/0x710 [ 1489.034449][ T10] netlink_sendmsg+0x723/0xbe0 [ 1489.034449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1489.034449][ T10] ___sys_sendmsg+0xee/0x170 [ 1489.034449][ T10] __sys_sendmsg+0xcd/0x170 [ 1489.034449][ T10] do_syscall_64+0xc6/0x1e0 [ 1489.034449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1489.034449][ T10] [ 1499.179813][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1499.180148][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1499.180148][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.180148][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.180148][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.180148][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.180148][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.180148][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.180148][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.180148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.180148][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.180148][ T10] netlink_unicast+0x449/0x710 [ 1499.180148][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.180148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.180148][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.180148][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.180148][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.180148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.180148][ T10] [ 1499.182177][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1499.182177][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.182177][ T10] ipv6_find_idev+0x102/0x170 [ 1499.182177][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.182177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.182177][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.182177][ T10] netlink_unicast+0x449/0x710 [ 1499.182177][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.182177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.182177][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.182177][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.182177][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.182177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.182177][ T10] [ 1499.183712][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1499.183712][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.183712][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.183712][ T10] ipv6_find_idev+0x102/0x170 [ 1499.183712][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.183712][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.183712][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.183712][ T10] netlink_unicast+0x449/0x710 [ 1499.183712][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.183712][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.183712][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.183712][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.183712][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.183712][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.183712][ T10] [ 1499.185388][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1499.185671][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1499.185671][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.185671][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.185671][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.185671][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.185671][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.185671][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.185671][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.185671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.185671][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.185671][ T10] netlink_unicast+0x449/0x710 [ 1499.185671][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.185671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.185671][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.185671][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.185671][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.185671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.185671][ T10] [ 1499.187667][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1499.187667][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.187667][ T10] ipv6_find_idev+0x102/0x170 [ 1499.187667][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.187667][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.187667][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.187667][ T10] netlink_unicast+0x449/0x710 [ 1499.187667][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.187667][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.187667][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.187667][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.187667][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.187667][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.187667][ T10] [ 1499.189196][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1499.189196][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.189196][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.189196][ T10] ipv6_find_idev+0x102/0x170 [ 1499.189196][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.189196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.189196][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.189196][ T10] netlink_unicast+0x449/0x710 [ 1499.189196][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.189196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.189196][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.189196][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.189196][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.189196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.189196][ T10] [ 1499.190889][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1499.191155][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1499.191155][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.191155][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.191155][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.191155][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.191155][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.191155][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.191155][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.191155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.191155][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.191155][ T10] netlink_unicast+0x449/0x710 [ 1499.191155][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.191155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.191155][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.191155][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.191155][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.191155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.191155][ T10] [ 1499.193160][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1499.193160][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.193160][ T10] ipv6_find_idev+0x102/0x170 [ 1499.193160][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.193160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.193160][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.193160][ T10] netlink_unicast+0x449/0x710 [ 1499.193160][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.193160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.193160][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.193160][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.193160][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.193160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.193160][ T10] [ 1499.194700][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1499.194700][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.194700][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.194700][ T10] ipv6_find_idev+0x102/0x170 [ 1499.194700][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.194700][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.194700][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.194700][ T10] netlink_unicast+0x449/0x710 [ 1499.194700][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.194700][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.194700][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.194700][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.194700][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.194700][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.194700][ T10] [ 1499.196452][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1499.196820][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1499.196820][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.196820][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.196820][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.196820][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.196820][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.196820][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.196820][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.196820][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.196820][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.196820][ T10] netlink_unicast+0x449/0x710 [ 1499.196820][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.196820][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.196820][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.196820][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.196820][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.196820][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.196820][ T10] [ 1499.198830][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1499.198830][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.198830][ T10] ipv6_find_idev+0x102/0x170 [ 1499.198830][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.198830][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.198830][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.198830][ T10] netlink_unicast+0x449/0x710 [ 1499.198830][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.198830][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.198830][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.198830][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.198830][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.198830][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.198830][ T10] [ 1499.200359][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1499.200359][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.200359][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.200359][ T10] ipv6_find_idev+0x102/0x170 [ 1499.200359][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.200359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.200359][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.200359][ T10] netlink_unicast+0x449/0x710 [ 1499.200359][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.200359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.200359][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.200359][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.200359][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.200359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.200359][ T10] [ 1499.202107][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1499.202388][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1499.202388][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.202388][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.202388][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.202388][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.202388][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.202388][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.202388][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.202388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.202388][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.202388][ T10] netlink_unicast+0x449/0x710 [ 1499.202388][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.202388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.202388][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.202388][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.202388][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.202388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.202388][ T10] [ 1499.204403][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1499.204403][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.204403][ T10] ipv6_find_idev+0x102/0x170 [ 1499.204403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.204403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.204403][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.204403][ T10] netlink_unicast+0x449/0x710 [ 1499.204403][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.204403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.204403][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.204403][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.204403][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.204403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.204403][ T10] [ 1499.205938][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1499.205938][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.205938][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.205938][ T10] ipv6_find_idev+0x102/0x170 [ 1499.205938][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.205938][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.205938][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.205938][ T10] netlink_unicast+0x449/0x710 [ 1499.205938][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.205938][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.205938][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.205938][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.205938][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.205938][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.205938][ T10] [ 1499.207888][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1499.208169][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1499.208169][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.208169][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.208169][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.208169][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.208169][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.208169][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.208169][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.208169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.208169][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.208169][ T10] netlink_unicast+0x449/0x710 [ 1499.208169][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.208169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.208169][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.208169][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.208169][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.208169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.208169][ T10] [ 1499.210376][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1499.210376][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.210376][ T10] ipv6_find_idev+0x102/0x170 [ 1499.210376][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.210376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.210376][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.210376][ T10] netlink_unicast+0x449/0x710 [ 1499.210376][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.210376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.210376][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.210376][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.210376][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.210376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.210376][ T10] [ 1499.212084][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1499.212084][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.212084][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.212084][ T10] ipv6_find_idev+0x102/0x170 [ 1499.212084][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.212084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.212084][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.212084][ T10] netlink_unicast+0x449/0x710 [ 1499.212084][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.212084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.212084][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.212084][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.212084][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.212084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.212084][ T10] [ 1499.214082][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1499.214360][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1499.214360][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.214360][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.214360][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.214360][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.214360][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.214360][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.214360][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.214360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.214360][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.214360][ T10] netlink_unicast+0x449/0x710 [ 1499.214360][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.214360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.214360][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.214360][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.214360][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.214360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.214360][ T10] [ 1499.216539][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1499.216539][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.216539][ T10] ipv6_find_idev+0x102/0x170 [ 1499.216539][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.216539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.216539][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.216539][ T10] netlink_unicast+0x449/0x710 [ 1499.216539][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.216539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.216539][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.216539][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.216539][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.216539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.216539][ T10] [ 1499.218252][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1499.218252][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.218252][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.218252][ T10] ipv6_find_idev+0x102/0x170 [ 1499.218252][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.218252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.218252][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.218252][ T10] netlink_unicast+0x449/0x710 [ 1499.218252][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.218252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.218252][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.218252][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.218252][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.218252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.218252][ T10] [ 1499.220304][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1499.220583][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1499.220583][ T10] netdev_get_by_index+0x5e/0x80 [ 1499.220583][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1499.220583][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1499.220583][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1499.220583][ T10] ipv6_add_addr+0x411/0x2000 [ 1499.220583][ T10] inet6_addr_add+0x30e/0xa40 [ 1499.220583][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1499.220583][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.220583][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.220583][ T10] netlink_unicast+0x449/0x710 [ 1499.220583][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.220583][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.220583][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.220583][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.220583][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.220583][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.220583][ T10] [ 1499.222766][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1499.222766][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1499.222766][ T10] ipv6_find_idev+0x102/0x170 [ 1499.222766][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.222766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.222766][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.222766][ T10] netlink_unicast+0x449/0x710 [ 1499.222766][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.222766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.222766][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.222766][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.222766][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.222766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.222766][ T10] [ 1499.224423][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1499.224423][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1499.224423][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1499.224423][ T10] ipv6_find_idev+0x102/0x170 [ 1499.224423][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1499.224423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1499.224423][ T10] netlink_rcv_skb+0x130/0x360 [ 1499.224423][ T10] netlink_unicast+0x449/0x710 [ 1499.224423][ T10] netlink_sendmsg+0x723/0xbe0 [ 1499.224423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1499.224423][ T10] ___sys_sendmsg+0xee/0x170 [ 1499.224423][ T10] __sys_sendmsg+0xcd/0x170 [ 1499.224423][ T10] do_syscall_64+0xc6/0x1e0 [ 1499.224423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1499.224423][ T10] [ 1509.267743][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1509.268106][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1509.268106][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.268106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.268106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.268106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.268106][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.268106][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.268106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.268106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.268106][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.268106][ T10] netlink_unicast+0x449/0x710 [ 1509.268106][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.268106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.268106][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.268106][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.268106][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.268106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.268106][ T10] [ 1509.270168][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1509.270168][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.270168][ T10] ipv6_find_idev+0x102/0x170 [ 1509.270168][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.270168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.270168][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.270168][ T10] netlink_unicast+0x449/0x710 [ 1509.270168][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.270168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.270168][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.270168][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.270168][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.270168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.270168][ T10] [ 1509.271732][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1509.271732][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.271732][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.271732][ T10] ipv6_find_idev+0x102/0x170 [ 1509.271732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.271732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.271732][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.271732][ T10] netlink_unicast+0x449/0x710 [ 1509.271732][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.271732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.271732][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.271732][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.271732][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.271732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.271732][ T10] [ 1509.273441][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1509.273768][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1509.273768][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.273768][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.273768][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.273768][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.273768][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.273768][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.273768][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.273768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.273768][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.273768][ T10] netlink_unicast+0x449/0x710 [ 1509.273768][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.273768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.273768][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.273768][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.273768][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.273768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.273768][ T10] [ 1509.275776][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1509.275776][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.275776][ T10] ipv6_find_idev+0x102/0x170 [ 1509.275776][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.275776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.275776][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.275776][ T10] netlink_unicast+0x449/0x710 [ 1509.275776][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.275776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.275776][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.275776][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.275776][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.275776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.275776][ T10] [ 1509.277320][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1509.277320][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.277320][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.277320][ T10] ipv6_find_idev+0x102/0x170 [ 1509.277320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.277320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.277320][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.277320][ T10] netlink_unicast+0x449/0x710 [ 1509.277320][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.277320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.277320][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.277320][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.277320][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.277320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.277320][ T10] [ 1509.279019][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1509.279290][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1509.279290][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.279290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.279290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.279290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.279290][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.279290][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.279290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.279290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.279290][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.279290][ T10] netlink_unicast+0x449/0x710 [ 1509.279290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.279290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.279290][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.279290][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.279290][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.279290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.279290][ T10] [ 1509.281297][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1509.281297][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.281297][ T10] ipv6_find_idev+0x102/0x170 [ 1509.281297][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.281297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.281297][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.281297][ T10] netlink_unicast+0x449/0x710 [ 1509.281297][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.281297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.281297][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.281297][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.281297][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.281297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.281297][ T10] [ 1509.282852][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1509.282852][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.282852][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.282852][ T10] ipv6_find_idev+0x102/0x170 [ 1509.282852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.282852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.282852][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.282852][ T10] netlink_unicast+0x449/0x710 [ 1509.282852][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.282852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.282852][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.282852][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.282852][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.282852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.282852][ T10] [ 1509.284558][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1509.285280][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1509.285280][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.285280][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.285280][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.285280][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.285280][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.285280][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.285280][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.285280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.285280][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.285280][ T10] netlink_unicast+0x449/0x710 [ 1509.285280][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.285280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.285280][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.285280][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.285280][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.285280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.285280][ T10] [ 1509.287280][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1509.287280][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.287280][ T10] ipv6_find_idev+0x102/0x170 [ 1509.287280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.287280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.287280][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.287280][ T10] netlink_unicast+0x449/0x710 [ 1509.287280][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.287280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.287280][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.287280][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.287280][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.287280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.287280][ T10] [ 1509.288821][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1509.288821][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.288821][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.288821][ T10] ipv6_find_idev+0x102/0x170 [ 1509.288821][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.288821][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.288821][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.288821][ T10] netlink_unicast+0x449/0x710 [ 1509.288821][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.288821][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.288821][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.288821][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.288821][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.288821][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.288821][ T10] [ 1509.290574][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1509.290901][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1509.290901][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.290901][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.290901][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.290901][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.290901][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.290901][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.290901][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.290901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.290901][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.290901][ T10] netlink_unicast+0x449/0x710 [ 1509.290901][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.290901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.290901][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.290901][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.290901][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.290901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.290901][ T10] [ 1509.292924][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1509.292924][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.292924][ T10] ipv6_find_idev+0x102/0x170 [ 1509.292924][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.292924][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.292924][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.292924][ T10] netlink_unicast+0x449/0x710 [ 1509.292924][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.292924][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.292924][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.292924][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.292924][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.292924][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.292924][ T10] [ 1509.294478][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1509.294478][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.294478][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.294478][ T10] ipv6_find_idev+0x102/0x170 [ 1509.294478][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.294478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.294478][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.294478][ T10] netlink_unicast+0x449/0x710 [ 1509.294478][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.294478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.294478][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.294478][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.294478][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.294478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.294478][ T10] [ 1509.296207][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1509.296481][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1509.296481][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.296481][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.296481][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.296481][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.296481][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.296481][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.296481][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.296481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.296481][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.296481][ T10] netlink_unicast+0x449/0x710 [ 1509.296481][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.296481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.296481][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.296481][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.296481][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.296481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.296481][ T10] [ 1509.298582][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1509.298582][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.298582][ T10] ipv6_find_idev+0x102/0x170 [ 1509.298582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.298582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.298582][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.298582][ T10] netlink_unicast+0x449/0x710 [ 1509.298582][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.298582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.298582][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.298582][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.298582][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.298582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.298582][ T10] [ 1509.300344][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1509.300344][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.300344][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.300344][ T10] ipv6_find_idev+0x102/0x170 [ 1509.300344][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.300344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.300344][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.300344][ T10] netlink_unicast+0x449/0x710 [ 1509.300344][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.300344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.300344][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.300344][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.300344][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.300344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.300344][ T10] [ 1509.302369][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1509.302640][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1509.302640][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.302640][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.302640][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.302640][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.302640][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.302640][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.302640][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.302640][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.302640][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.302640][ T10] netlink_unicast+0x449/0x710 [ 1509.302640][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.302640][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.302640][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.302640][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.302640][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.302640][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.302640][ T10] [ 1509.304852][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1509.304852][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.304852][ T10] ipv6_find_idev+0x102/0x170 [ 1509.304852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.304852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.304852][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.304852][ T10] netlink_unicast+0x449/0x710 [ 1509.304852][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.304852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.304852][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.304852][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.304852][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.304852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.304852][ T10] [ 1509.306523][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1509.306523][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.306523][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.306523][ T10] ipv6_find_idev+0x102/0x170 [ 1509.306523][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.306523][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.306523][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.306523][ T10] netlink_unicast+0x449/0x710 [ 1509.306523][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.306523][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.306523][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.306523][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.306523][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.306523][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.306523][ T10] [ 1509.308522][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1509.308858][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1509.308858][ T10] netdev_get_by_index+0x5e/0x80 [ 1509.308858][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1509.308858][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1509.308858][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1509.308858][ T10] ipv6_add_addr+0x411/0x2000 [ 1509.308858][ T10] inet6_addr_add+0x30e/0xa40 [ 1509.308858][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1509.308858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.308858][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.308858][ T10] netlink_unicast+0x449/0x710 [ 1509.308858][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.308858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.308858][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.308858][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.308858][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.308858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.308858][ T10] [ 1509.311069][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1509.311069][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1509.311069][ T10] ipv6_find_idev+0x102/0x170 [ 1509.311069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.311069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.311069][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.311069][ T10] netlink_unicast+0x449/0x710 [ 1509.311069][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.311069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.311069][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.311069][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.311069][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.311069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.311069][ T10] [ 1509.312891][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1509.312891][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1509.312891][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1509.312891][ T10] ipv6_find_idev+0x102/0x170 [ 1509.312891][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1509.312891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1509.312891][ T10] netlink_rcv_skb+0x130/0x360 [ 1509.312891][ T10] netlink_unicast+0x449/0x710 [ 1509.312891][ T10] netlink_sendmsg+0x723/0xbe0 [ 1509.312891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1509.312891][ T10] ___sys_sendmsg+0xee/0x170 [ 1509.312891][ T10] __sys_sendmsg+0xcd/0x170 [ 1509.312891][ T10] do_syscall_64+0xc6/0x1e0 [ 1509.312891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1509.312891][ T10] [ 1519.323745][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1519.324293][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1519.324293][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.324293][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.324293][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.324293][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.324293][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.324293][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.324293][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.324293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.324293][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.324293][ T10] netlink_unicast+0x449/0x710 [ 1519.324293][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.324293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.324293][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.324293][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.324293][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.324293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.324293][ T10] [ 1519.326711][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1519.326711][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.326711][ T10] ipv6_find_idev+0x102/0x170 [ 1519.326711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.326711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.326711][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.326711][ T10] netlink_unicast+0x449/0x710 [ 1519.326711][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.326711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.326711][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.326711][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.326711][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.326711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.326711][ T10] [ 1519.328470][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1519.328470][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.328470][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.328470][ T10] ipv6_find_idev+0x102/0x170 [ 1519.328470][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.328470][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.328470][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.328470][ T10] netlink_unicast+0x449/0x710 [ 1519.328470][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.328470][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.328470][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.328470][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.328470][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.328470][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.328470][ T10] [ 1519.330421][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1519.330744][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1519.330744][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.330744][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.330744][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.330744][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.330744][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.330744][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.330744][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.330744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.330744][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.330744][ T10] netlink_unicast+0x449/0x710 [ 1519.330744][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.330744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.330744][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.330744][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.330744][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.330744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.330744][ T10] [ 1519.333044][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1519.333044][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.333044][ T10] ipv6_find_idev+0x102/0x170 [ 1519.333044][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.333044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.333044][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.333044][ T10] netlink_unicast+0x449/0x710 [ 1519.333044][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.333044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.333044][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.333044][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.333044][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.333044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.333044][ T10] [ 1519.334785][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1519.334785][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.334785][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.334785][ T10] ipv6_find_idev+0x102/0x170 [ 1519.334785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.334785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.334785][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.334785][ T10] netlink_unicast+0x449/0x710 [ 1519.334785][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.334785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.334785][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.334785][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.334785][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.334785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.334785][ T10] [ 1519.336713][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1519.337017][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1519.337017][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.337017][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.337017][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.337017][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.337017][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.337017][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.337017][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.337017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.337017][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.337017][ T10] netlink_unicast+0x449/0x710 [ 1519.337017][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.337017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.337017][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.337017][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.337017][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.337017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.337017][ T10] [ 1519.339307][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1519.339307][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.339307][ T10] ipv6_find_idev+0x102/0x170 [ 1519.339307][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.339307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.339307][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.339307][ T10] netlink_unicast+0x449/0x710 [ 1519.339307][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.339307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.339307][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.339307][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.339307][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.339307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.339307][ T10] [ 1519.341056][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1519.341056][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.341056][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.341056][ T10] ipv6_find_idev+0x102/0x170 [ 1519.341056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.341056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.341056][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.341056][ T10] netlink_unicast+0x449/0x710 [ 1519.341056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.341056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.341056][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.341056][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.341056][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.341056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.341056][ T10] [ 1519.343410][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1519.344069][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1519.344069][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.344069][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.344069][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.344069][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.344069][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.344069][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.344069][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.344069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.344069][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.344069][ T10] netlink_unicast+0x449/0x710 [ 1519.344069][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.344069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.344069][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.344069][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.344069][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.344069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.344069][ T10] [ 1519.346274][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1519.346274][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.346274][ T10] ipv6_find_idev+0x102/0x170 [ 1519.346274][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.346274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.346274][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.346274][ T10] netlink_unicast+0x449/0x710 [ 1519.346274][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.346274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.346274][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.346274][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.346274][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.346274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.346274][ T10] [ 1519.347985][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1519.347985][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.347985][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.347985][ T10] ipv6_find_idev+0x102/0x170 [ 1519.347985][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.347985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.347985][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.347985][ T10] netlink_unicast+0x449/0x710 [ 1519.347985][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.347985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.347985][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.347985][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.347985][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.347985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.347985][ T10] [ 1519.349857][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1519.350151][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1519.350151][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.350151][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.350151][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.350151][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.350151][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.350151][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.350151][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.350151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.350151][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.350151][ T10] netlink_unicast+0x449/0x710 [ 1519.350151][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.350151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.350151][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.350151][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.350151][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.350151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.350151][ T10] [ 1519.352372][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1519.352372][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.352372][ T10] ipv6_find_idev+0x102/0x170 [ 1519.352372][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.352372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.352372][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.352372][ T10] netlink_unicast+0x449/0x710 [ 1519.352372][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.352372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.352372][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.352372][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.352372][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.352372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.352372][ T10] [ 1519.354106][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1519.354106][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.354106][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.354106][ T10] ipv6_find_idev+0x102/0x170 [ 1519.354106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.354106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.354106][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.354106][ T10] netlink_unicast+0x449/0x710 [ 1519.354106][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.354106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.354106][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.354106][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.354106][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.354106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.354106][ T10] [ 1519.356046][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1519.356388][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1519.356388][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.356388][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.356388][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.356388][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.356388][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.356388][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.356388][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.356388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.356388][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.356388][ T10] netlink_unicast+0x449/0x710 [ 1519.356388][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.356388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.356388][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.356388][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.356388][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.356388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.356388][ T10] [ 1519.358625][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1519.358625][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.358625][ T10] ipv6_find_idev+0x102/0x170 [ 1519.358625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.358625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.358625][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.358625][ T10] netlink_unicast+0x449/0x710 [ 1519.358625][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.358625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.358625][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.358625][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.358625][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.358625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.358625][ T10] [ 1519.360338][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1519.360338][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.360338][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.360338][ T10] ipv6_find_idev+0x102/0x170 [ 1519.360338][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.360338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.360338][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.360338][ T10] netlink_unicast+0x449/0x710 [ 1519.360338][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.360338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.360338][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.360338][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.360338][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.360338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.360338][ T10] [ 1519.362405][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1519.362770][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1519.362770][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.362770][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.362770][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.362770][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.362770][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.362770][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.362770][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.362770][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.362770][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.362770][ T10] netlink_unicast+0x449/0x710 [ 1519.362770][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.362770][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.362770][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.362770][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.362770][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.362770][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.362770][ T10] [ 1519.365252][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1519.365252][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.365252][ T10] ipv6_find_idev+0x102/0x170 [ 1519.365252][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.365252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.365252][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.365252][ T10] netlink_unicast+0x449/0x710 [ 1519.365252][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.365252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.365252][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.365252][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.365252][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.365252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.365252][ T10] [ 1519.367162][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1519.367162][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.367162][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.367162][ T10] ipv6_find_idev+0x102/0x170 [ 1519.367162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.367162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.367162][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.367162][ T10] netlink_unicast+0x449/0x710 [ 1519.367162][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.367162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.367162][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.367162][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.367162][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.367162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.367162][ T10] [ 1519.369280][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1519.369617][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1519.369617][ T10] netdev_get_by_index+0x5e/0x80 [ 1519.369617][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1519.369617][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1519.369617][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1519.369617][ T10] ipv6_add_addr+0x411/0x2000 [ 1519.369617][ T10] inet6_addr_add+0x30e/0xa40 [ 1519.369617][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1519.369617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.369617][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.369617][ T10] netlink_unicast+0x449/0x710 [ 1519.369617][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.369617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.369617][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.369617][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.369617][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.369617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.369617][ T10] [ 1519.372048][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1519.372048][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1519.372048][ T10] ipv6_find_idev+0x102/0x170 [ 1519.372048][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.372048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.372048][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.372048][ T10] netlink_unicast+0x449/0x710 [ 1519.372048][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.372048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.372048][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.372048][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.372048][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.372048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.372048][ T10] [ 1519.373952][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1519.373952][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1519.373952][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1519.373952][ T10] ipv6_find_idev+0x102/0x170 [ 1519.373952][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1519.373952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1519.373952][ T10] netlink_rcv_skb+0x130/0x360 [ 1519.373952][ T10] netlink_unicast+0x449/0x710 [ 1519.373952][ T10] netlink_sendmsg+0x723/0xbe0 [ 1519.373952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1519.373952][ T10] ___sys_sendmsg+0xee/0x170 [ 1519.373952][ T10] __sys_sendmsg+0xcd/0x170 [ 1519.373952][ T10] do_syscall_64+0xc6/0x1e0 [ 1519.373952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1519.373952][ T10] [ 1529.483830][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1529.484216][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1529.484216][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.484216][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.484216][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.484216][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.484216][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.484216][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.484216][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.484216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.484216][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.484216][ T10] netlink_unicast+0x449/0x710 [ 1529.484216][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.484216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.484216][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.484216][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.484216][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.484216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.484216][ T10] [ 1529.486538][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1529.486538][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.486538][ T10] ipv6_find_idev+0x102/0x170 [ 1529.486538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.486538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.486538][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.486538][ T10] netlink_unicast+0x449/0x710 [ 1529.486538][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.486538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.486538][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.486538][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.486538][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.486538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.486538][ T10] [ 1529.488331][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1529.488331][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.488331][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.488331][ T10] ipv6_find_idev+0x102/0x170 [ 1529.488331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.488331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.488331][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.488331][ T10] netlink_unicast+0x449/0x710 [ 1529.488331][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.488331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.488331][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.488331][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.488331][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.488331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.488331][ T10] [ 1529.490787][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1529.491091][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1529.491091][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.491091][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.491091][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.491091][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.491091][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.491091][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.491091][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.491091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.491091][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.491091][ T10] netlink_unicast+0x449/0x710 [ 1529.491091][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.491091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.491091][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.491091][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.491091][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.491091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.491091][ T10] [ 1529.493376][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1529.493376][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.493376][ T10] ipv6_find_idev+0x102/0x170 [ 1529.493376][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.493376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.493376][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.493376][ T10] netlink_unicast+0x449/0x710 [ 1529.493376][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.493376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.493376][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.493376][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.493376][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.493376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.493376][ T10] [ 1529.495104][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1529.495104][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.495104][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.495104][ T10] ipv6_find_idev+0x102/0x170 [ 1529.495104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.495104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.495104][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.495104][ T10] netlink_unicast+0x449/0x710 [ 1529.495104][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.495104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.495104][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.495104][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.495104][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.495104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.495104][ T10] [ 1529.496988][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1529.497286][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1529.497286][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.497286][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.497286][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.497286][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.497286][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.497286][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.497286][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.497286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.497286][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.497286][ T10] netlink_unicast+0x449/0x710 [ 1529.497286][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.497286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.497286][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.497286][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.497286][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.497286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.497286][ T10] [ 1529.499602][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1529.499602][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.499602][ T10] ipv6_find_idev+0x102/0x170 [ 1529.499602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.499602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.499602][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.499602][ T10] netlink_unicast+0x449/0x710 [ 1529.499602][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.499602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.499602][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.499602][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.499602][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.499602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.499602][ T10] [ 1529.501399][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1529.501399][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.501399][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.501399][ T10] ipv6_find_idev+0x102/0x170 [ 1529.501399][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.501399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.501399][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.501399][ T10] netlink_unicast+0x449/0x710 [ 1529.501399][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.501399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.501399][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.501399][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.501399][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.501399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.501399][ T10] [ 1529.503907][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1529.504295][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1529.504295][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.504295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.504295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.504295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.504295][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.504295][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.504295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.504295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.504295][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.504295][ T10] netlink_unicast+0x449/0x710 [ 1529.504295][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.504295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.504295][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.504295][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.504295][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.504295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.504295][ T10] [ 1529.506555][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1529.506555][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.506555][ T10] ipv6_find_idev+0x102/0x170 [ 1529.506555][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.506555][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.506555][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.506555][ T10] netlink_unicast+0x449/0x710 [ 1529.506555][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.506555][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.506555][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.506555][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.506555][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.506555][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.506555][ T10] [ 1529.508305][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1529.508305][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.508305][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.508305][ T10] ipv6_find_idev+0x102/0x170 [ 1529.508305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.508305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.508305][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.508305][ T10] netlink_unicast+0x449/0x710 [ 1529.508305][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.508305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.508305][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.508305][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.508305][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.508305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.508305][ T10] [ 1529.510476][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1529.510933][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1529.510933][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.510933][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.510933][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.510933][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.510933][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.510933][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.510933][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.510933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.510933][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.510933][ T10] netlink_unicast+0x449/0x710 [ 1529.510933][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.510933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.510933][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.510933][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.510933][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.510933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.510933][ T10] [ 1529.513401][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1529.513401][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.513401][ T10] ipv6_find_idev+0x102/0x170 [ 1529.513401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.513401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.513401][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.513401][ T10] netlink_unicast+0x449/0x710 [ 1529.513401][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.513401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.513401][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.513401][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.513401][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.513401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.513401][ T10] [ 1529.515310][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1529.515310][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.515310][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.515310][ T10] ipv6_find_idev+0x102/0x170 [ 1529.515310][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.515310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.515310][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.515310][ T10] netlink_unicast+0x449/0x710 [ 1529.515310][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.515310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.515310][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.515310][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.515310][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.515310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.515310][ T10] [ 1529.517502][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1529.517867][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1529.517867][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.517867][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.517867][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.517867][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.517867][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.517867][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.517867][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.517867][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.517867][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.517867][ T10] netlink_unicast+0x449/0x710 [ 1529.517867][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.517867][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.517867][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.517867][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.517867][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.517867][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.517867][ T10] [ 1529.520120][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1529.520120][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.520120][ T10] ipv6_find_idev+0x102/0x170 [ 1529.520120][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.520120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.520120][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.520120][ T10] netlink_unicast+0x449/0x710 [ 1529.520120][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.520120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.520120][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.520120][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.520120][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.520120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.520120][ T10] [ 1529.521996][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1529.521996][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.521996][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.521996][ T10] ipv6_find_idev+0x102/0x170 [ 1529.521996][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.521996][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.521996][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.521996][ T10] netlink_unicast+0x449/0x710 [ 1529.521996][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.521996][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.521996][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.521996][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.521996][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.521996][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.521996][ T10] [ 1529.524204][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1529.524574][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1529.524574][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.524574][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.524574][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.524574][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.524574][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.524574][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.524574][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.524574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.524574][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.524574][ T10] netlink_unicast+0x449/0x710 [ 1529.524574][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.524574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.524574][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.524574][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.524574][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.524574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.524574][ T10] [ 1529.527125][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1529.527125][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.527125][ T10] ipv6_find_idev+0x102/0x170 [ 1529.527125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.527125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.527125][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.527125][ T10] netlink_unicast+0x449/0x710 [ 1529.527125][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.527125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.527125][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.527125][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.527125][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.527125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.527125][ T10] [ 1529.529025][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1529.529025][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.529025][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.529025][ T10] ipv6_find_idev+0x102/0x170 [ 1529.529025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.529025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.529025][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.529025][ T10] netlink_unicast+0x449/0x710 [ 1529.529025][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.529025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.529025][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.529025][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.529025][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.529025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.529025][ T10] [ 1529.531382][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1529.531759][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1529.531759][ T10] netdev_get_by_index+0x5e/0x80 [ 1529.531759][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1529.531759][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1529.531759][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1529.531759][ T10] ipv6_add_addr+0x411/0x2000 [ 1529.531759][ T10] inet6_addr_add+0x30e/0xa40 [ 1529.531759][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1529.531759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.531759][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.531759][ T10] netlink_unicast+0x449/0x710 [ 1529.531759][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.531759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.531759][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.531759][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.531759][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.531759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.531759][ T10] [ 1529.534026][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1529.534026][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1529.534026][ T10] ipv6_find_idev+0x102/0x170 [ 1529.534026][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.534026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.534026][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.534026][ T10] netlink_unicast+0x449/0x710 [ 1529.534026][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.534026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.534026][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.534026][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.534026][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.534026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.534026][ T10] [ 1529.535953][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1529.535953][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1529.535953][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1529.535953][ T10] ipv6_find_idev+0x102/0x170 [ 1529.535953][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1529.535953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1529.535953][ T10] netlink_rcv_skb+0x130/0x360 [ 1529.535953][ T10] netlink_unicast+0x449/0x710 [ 1529.535953][ T10] netlink_sendmsg+0x723/0xbe0 [ 1529.535953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1529.535953][ T10] ___sys_sendmsg+0xee/0x170 [ 1529.535953][ T10] __sys_sendmsg+0xcd/0x170 [ 1529.535953][ T10] do_syscall_64+0xc6/0x1e0 [ 1529.535953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1529.535953][ T10] [ 1539.652695][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1539.653094][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1539.653094][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.653094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.653094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.653094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.653094][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.653094][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.653094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.653094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.653094][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.653094][ T10] netlink_unicast+0x449/0x710 [ 1539.653094][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.653094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.653094][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.653094][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.653094][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.653094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.653094][ T10] [ 1539.655132][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1539.655132][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.655132][ T10] ipv6_find_idev+0x102/0x170 [ 1539.655132][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.655132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.655132][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.655132][ T10] netlink_unicast+0x449/0x710 [ 1539.655132][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.655132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.655132][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.655132][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.655132][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.655132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.655132][ T10] [ 1539.656678][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1539.656678][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.656678][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.656678][ T10] ipv6_find_idev+0x102/0x170 [ 1539.656678][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.656678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.656678][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.656678][ T10] netlink_unicast+0x449/0x710 [ 1539.656678][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.656678][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.656678][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.656678][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.656678][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.656678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.656678][ T10] [ 1539.658396][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1539.658669][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1539.658669][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.658669][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.658669][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.658669][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.658669][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.658669][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.658669][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.658669][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.658669][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.658669][ T10] netlink_unicast+0x449/0x710 [ 1539.658669][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.658669][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.658669][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.658669][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.658669][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.658669][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.658669][ T10] [ 1539.660660][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1539.660660][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.660660][ T10] ipv6_find_idev+0x102/0x170 [ 1539.660660][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.660660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.660660][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.660660][ T10] netlink_unicast+0x449/0x710 [ 1539.660660][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.660660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.660660][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.660660][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.660660][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.660660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.660660][ T10] [ 1539.662208][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1539.662208][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.662208][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.662208][ T10] ipv6_find_idev+0x102/0x170 [ 1539.662208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.662208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.662208][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.662208][ T10] netlink_unicast+0x449/0x710 [ 1539.662208][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.662208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.662208][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.662208][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.662208][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.662208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.662208][ T10] [ 1539.663969][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1539.664238][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1539.664238][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.664238][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.664238][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.664238][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.664238][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.664238][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.664238][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.664238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.664238][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.664238][ T10] netlink_unicast+0x449/0x710 [ 1539.664238][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.664238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.664238][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.664238][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.664238][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.664238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.664238][ T10] [ 1539.666227][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1539.666227][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.666227][ T10] ipv6_find_idev+0x102/0x170 [ 1539.666227][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.666227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.666227][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.666227][ T10] netlink_unicast+0x449/0x710 [ 1539.666227][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.666227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.666227][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.666227][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.666227][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.666227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.666227][ T10] [ 1539.667766][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1539.667766][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.667766][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.667766][ T10] ipv6_find_idev+0x102/0x170 [ 1539.667766][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.667766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.667766][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.667766][ T10] netlink_unicast+0x449/0x710 [ 1539.667766][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.667766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.667766][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.667766][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.667766][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.667766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.667766][ T10] [ 1539.669483][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1539.669762][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1539.669762][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.669762][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.669762][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.669762][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.669762][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.669762][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.669762][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.669762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.669762][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.669762][ T10] netlink_unicast+0x449/0x710 [ 1539.669762][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.669762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.669762][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.669762][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.669762][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.669762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.669762][ T10] [ 1539.671792][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1539.671792][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.671792][ T10] ipv6_find_idev+0x102/0x170 [ 1539.671792][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.671792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.671792][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.671792][ T10] netlink_unicast+0x449/0x710 [ 1539.671792][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.671792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.671792][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.671792][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.671792][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.671792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.671792][ T10] [ 1539.673335][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1539.673335][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.673335][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.673335][ T10] ipv6_find_idev+0x102/0x170 [ 1539.673335][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.673335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.673335][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.673335][ T10] netlink_unicast+0x449/0x710 [ 1539.673335][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.673335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.673335][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.673335][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.673335][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.673335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.673335][ T10] [ 1539.675227][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1539.675496][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1539.675496][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.675496][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.675496][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.675496][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.675496][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.675496][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.675496][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.675496][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.675496][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.675496][ T10] netlink_unicast+0x449/0x710 [ 1539.675496][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.675496][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.675496][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.675496][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.675496][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.675496][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.675496][ T10] [ 1539.677553][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1539.677553][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.677553][ T10] ipv6_find_idev+0x102/0x170 [ 1539.677553][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.677553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.677553][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.677553][ T10] netlink_unicast+0x449/0x710 [ 1539.677553][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.677553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.677553][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.677553][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.677553][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.677553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.677553][ T10] [ 1539.679288][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1539.679288][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.679288][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.679288][ T10] ipv6_find_idev+0x102/0x170 [ 1539.679288][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.679288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.679288][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.679288][ T10] netlink_unicast+0x449/0x710 [ 1539.679288][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.679288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.679288][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.679288][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.679288][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.679288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.679288][ T10] [ 1539.681185][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1539.681454][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1539.681454][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.681454][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.681454][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.681454][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.681454][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.681454][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.681454][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.681454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.681454][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.681454][ T10] netlink_unicast+0x449/0x710 [ 1539.681454][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.681454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.681454][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.681454][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.681454][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.681454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.681454][ T10] [ 1539.683646][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1539.683646][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.683646][ T10] ipv6_find_idev+0x102/0x170 [ 1539.683646][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.683646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.683646][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.683646][ T10] netlink_unicast+0x449/0x710 [ 1539.683646][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.683646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.683646][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.683646][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.683646][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.683646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.683646][ T10] [ 1539.685186][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1539.685186][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.685186][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.685186][ T10] ipv6_find_idev+0x102/0x170 [ 1539.685186][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.685186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.685186][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.685186][ T10] netlink_unicast+0x449/0x710 [ 1539.685186][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.685186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.685186][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.685186][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.685186][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.685186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.685186][ T10] [ 1539.686888][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1539.687162][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1539.687162][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.687162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.687162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.687162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.687162][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.687162][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.687162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.687162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.687162][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.687162][ T10] netlink_unicast+0x449/0x710 [ 1539.687162][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.687162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.687162][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.687162][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.687162][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.687162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.687162][ T10] [ 1539.689226][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1539.689226][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.689226][ T10] ipv6_find_idev+0x102/0x170 [ 1539.689226][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.689226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.689226][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.689226][ T10] netlink_unicast+0x449/0x710 [ 1539.689226][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.689226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.689226][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.689226][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.689226][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.689226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.689226][ T10] [ 1539.691011][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1539.691011][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.691011][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.691011][ T10] ipv6_find_idev+0x102/0x170 [ 1539.691011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.691011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.691011][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.691011][ T10] netlink_unicast+0x449/0x710 [ 1539.691011][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.691011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.691011][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.691011][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.691011][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.691011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.691011][ T10] [ 1539.693003][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1539.693285][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1539.693285][ T10] netdev_get_by_index+0x5e/0x80 [ 1539.693285][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1539.693285][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1539.693285][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1539.693285][ T10] ipv6_add_addr+0x411/0x2000 [ 1539.693285][ T10] inet6_addr_add+0x30e/0xa40 [ 1539.693285][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1539.693285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.693285][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.693285][ T10] netlink_unicast+0x449/0x710 [ 1539.693285][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.693285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.693285][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.693285][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.693285][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.693285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.693285][ T10] [ 1539.695460][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1539.695460][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1539.695460][ T10] ipv6_find_idev+0x102/0x170 [ 1539.695460][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.695460][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.695460][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.695460][ T10] netlink_unicast+0x449/0x710 [ 1539.695460][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.695460][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.695460][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.695460][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.695460][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.695460][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.695460][ T10] [ 1539.697184][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1539.697184][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1539.697184][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1539.697184][ T10] ipv6_find_idev+0x102/0x170 [ 1539.697184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1539.697184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1539.697184][ T10] netlink_rcv_skb+0x130/0x360 [ 1539.697184][ T10] netlink_unicast+0x449/0x710 [ 1539.697184][ T10] netlink_sendmsg+0x723/0xbe0 [ 1539.697184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1539.697184][ T10] ___sys_sendmsg+0xee/0x170 [ 1539.697184][ T10] __sys_sendmsg+0xcd/0x170 [ 1539.697184][ T10] do_syscall_64+0xc6/0x1e0 [ 1539.697184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1539.697184][ T10] [ 1549.723859][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1549.724423][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1549.724423][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.724423][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.724423][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.724423][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.724423][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.724423][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.724423][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.724423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.724423][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.724423][ T10] netlink_unicast+0x449/0x710 [ 1549.724423][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.724423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.724423][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.724423][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.724423][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.724423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.724423][ T10] [ 1549.726798][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1549.726798][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.726798][ T10] ipv6_find_idev+0x102/0x170 [ 1549.726798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.726798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.726798][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.726798][ T10] netlink_unicast+0x449/0x710 [ 1549.726798][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.726798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.726798][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.726798][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.726798][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.726798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.726798][ T10] [ 1549.728574][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1549.728574][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.728574][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.728574][ T10] ipv6_find_idev+0x102/0x170 [ 1549.728574][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.728574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.728574][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.728574][ T10] netlink_unicast+0x449/0x710 [ 1549.728574][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.728574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.728574][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.728574][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.728574][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.728574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.728574][ T10] [ 1549.730569][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1549.730919][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1549.730919][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.730919][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.730919][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.730919][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.730919][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.730919][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.730919][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.730919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.730919][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.730919][ T10] netlink_unicast+0x449/0x710 [ 1549.730919][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.730919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.730919][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.730919][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.730919][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.730919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.730919][ T10] [ 1549.733200][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1549.733200][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.733200][ T10] ipv6_find_idev+0x102/0x170 [ 1549.733200][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.733200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.733200][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.733200][ T10] netlink_unicast+0x449/0x710 [ 1549.733200][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.733200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.733200][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.733200][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.733200][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.733200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.733200][ T10] [ 1549.734965][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1549.734965][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.734965][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.734965][ T10] ipv6_find_idev+0x102/0x170 [ 1549.734965][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.734965][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.734965][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.734965][ T10] netlink_unicast+0x449/0x710 [ 1549.734965][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.734965][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.734965][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.734965][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.734965][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.734965][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.734965][ T10] [ 1549.736889][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1549.737195][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1549.737195][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.737195][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.737195][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.737195][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.737195][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.737195][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.737195][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.737195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.737195][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.737195][ T10] netlink_unicast+0x449/0x710 [ 1549.737195][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.737195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.737195][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.737195][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.737195][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.737195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.737195][ T10] [ 1549.739474][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1549.739474][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.739474][ T10] ipv6_find_idev+0x102/0x170 [ 1549.739474][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.739474][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.739474][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.739474][ T10] netlink_unicast+0x449/0x710 [ 1549.739474][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.739474][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.739474][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.739474][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.739474][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.739474][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.739474][ T10] [ 1549.741231][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1549.741231][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.741231][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.741231][ T10] ipv6_find_idev+0x102/0x170 [ 1549.741231][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.741231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.741231][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.741231][ T10] netlink_unicast+0x449/0x710 [ 1549.741231][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.741231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.741231][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.741231][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.741231][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.741231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.741231][ T10] [ 1549.743168][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1549.743463][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1549.743463][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.743463][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.743463][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.743463][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.743463][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.743463][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.743463][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.743463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.743463][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.743463][ T10] netlink_unicast+0x449/0x710 [ 1549.743463][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.743463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.743463][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.743463][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.743463][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.743463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.743463][ T10] [ 1549.745746][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1549.745746][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.745746][ T10] ipv6_find_idev+0x102/0x170 [ 1549.745746][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.745746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.745746][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.745746][ T10] netlink_unicast+0x449/0x710 [ 1549.745746][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.745746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.745746][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.745746][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.745746][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.745746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.745746][ T10] [ 1549.747499][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1549.747499][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.747499][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.747499][ T10] ipv6_find_idev+0x102/0x170 [ 1549.747499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.747499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.747499][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.747499][ T10] netlink_unicast+0x449/0x710 [ 1549.747499][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.747499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.747499][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.747499][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.747499][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.747499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.747499][ T10] [ 1549.749860][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1549.750503][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1549.750503][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.750503][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.750503][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.750503][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.750503][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.750503][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.750503][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.750503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.750503][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.750503][ T10] netlink_unicast+0x449/0x710 [ 1549.750503][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.750503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.750503][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.750503][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.750503][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.750503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.750503][ T10] [ 1549.752774][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1549.752774][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.752774][ T10] ipv6_find_idev+0x102/0x170 [ 1549.752774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.752774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.752774][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.752774][ T10] netlink_unicast+0x449/0x710 [ 1549.752774][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.752774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.752774][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.752774][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.752774][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.752774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.752774][ T10] [ 1549.754510][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1549.754510][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.754510][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.754510][ T10] ipv6_find_idev+0x102/0x170 [ 1549.754510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.754510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.754510][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.754510][ T10] netlink_unicast+0x449/0x710 [ 1549.754510][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.754510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.754510][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.754510][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.754510][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.754510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.754510][ T10] [ 1549.756407][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1549.756764][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1549.756764][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.756764][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.756764][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.756764][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.756764][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.756764][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.756764][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.756764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.756764][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.756764][ T10] netlink_unicast+0x449/0x710 [ 1549.756764][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.756764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.756764][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.756764][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.756764][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.756764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.756764][ T10] [ 1549.759030][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1549.759030][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.759030][ T10] ipv6_find_idev+0x102/0x170 [ 1549.759030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.759030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.759030][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.759030][ T10] netlink_unicast+0x449/0x710 [ 1549.759030][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.759030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.759030][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.759030][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.759030][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.759030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.759030][ T10] [ 1549.760851][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1549.760851][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.760851][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.760851][ T10] ipv6_find_idev+0x102/0x170 [ 1549.760851][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.760851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.760851][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.760851][ T10] netlink_unicast+0x449/0x710 [ 1549.760851][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.760851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.760851][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.760851][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.760851][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.760851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.760851][ T10] [ 1549.763050][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1549.763399][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1549.763399][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.763399][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.763399][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.763399][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.763399][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.763399][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.763399][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.763399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.763399][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.763399][ T10] netlink_unicast+0x449/0x710 [ 1549.763399][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.763399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.763399][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.763399][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.763399][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.763399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.763399][ T10] [ 1549.765838][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1549.765838][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.765838][ T10] ipv6_find_idev+0x102/0x170 [ 1549.765838][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.765838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.765838][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.765838][ T10] netlink_unicast+0x449/0x710 [ 1549.765838][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.765838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.765838][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.765838][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.765838][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.765838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.765838][ T10] [ 1549.767765][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1549.767765][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.767765][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.767765][ T10] ipv6_find_idev+0x102/0x170 [ 1549.767765][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.767765][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.767765][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.767765][ T10] netlink_unicast+0x449/0x710 [ 1549.767765][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.767765][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.767765][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.767765][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.767765][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.767765][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.767765][ T10] [ 1549.769909][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1549.770257][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1549.770257][ T10] netdev_get_by_index+0x5e/0x80 [ 1549.770257][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1549.770257][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1549.770257][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1549.770257][ T10] ipv6_add_addr+0x411/0x2000 [ 1549.770257][ T10] inet6_addr_add+0x30e/0xa40 [ 1549.770257][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1549.770257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.770257][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.770257][ T10] netlink_unicast+0x449/0x710 [ 1549.770257][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.770257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.770257][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.770257][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.770257][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.770257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.770257][ T10] [ 1549.772695][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1549.772695][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1549.772695][ T10] ipv6_find_idev+0x102/0x170 [ 1549.772695][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.772695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.772695][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.772695][ T10] netlink_unicast+0x449/0x710 [ 1549.772695][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.772695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.772695][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.772695][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.772695][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.772695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.772695][ T10] [ 1549.774634][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1549.774634][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1549.774634][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1549.774634][ T10] ipv6_find_idev+0x102/0x170 [ 1549.774634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1549.774634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1549.774634][ T10] netlink_rcv_skb+0x130/0x360 [ 1549.774634][ T10] netlink_unicast+0x449/0x710 [ 1549.774634][ T10] netlink_sendmsg+0x723/0xbe0 [ 1549.774634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1549.774634][ T10] ___sys_sendmsg+0xee/0x170 [ 1549.774634][ T10] __sys_sendmsg+0xcd/0x170 [ 1549.774634][ T10] do_syscall_64+0xc6/0x1e0 [ 1549.774634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1549.774634][ T10] [ 1560.027674][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1560.028070][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1560.028070][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.028070][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.028070][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.028070][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.028070][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.028070][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.028070][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.028070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.028070][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.028070][ T10] netlink_unicast+0x449/0x710 [ 1560.028070][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.028070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.028070][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.028070][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.028070][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.028070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.028070][ T10] [ 1560.030431][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1560.030431][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.030431][ T10] ipv6_find_idev+0x102/0x170 [ 1560.030431][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.030431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.030431][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.030431][ T10] netlink_unicast+0x449/0x710 [ 1560.030431][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.030431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.030431][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.030431][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.030431][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.030431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.030431][ T10] [ 1560.032312][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1560.032312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.032312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.032312][ T10] ipv6_find_idev+0x102/0x170 [ 1560.032312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.032312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.032312][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.032312][ T10] netlink_unicast+0x449/0x710 [ 1560.032312][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.032312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.032312][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.032312][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.032312][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.032312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.032312][ T10] [ 1560.034323][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1560.034639][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1560.034639][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.034639][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.034639][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.034639][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.034639][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.034639][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.034639][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.034639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.034639][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.034639][ T10] netlink_unicast+0x449/0x710 [ 1560.034639][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.034639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.034639][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.034639][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.034639][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.034639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.034639][ T10] [ 1560.037183][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1560.037183][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.037183][ T10] ipv6_find_idev+0x102/0x170 [ 1560.037183][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.037183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.037183][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.037183][ T10] netlink_unicast+0x449/0x710 [ 1560.037183][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.037183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.037183][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.037183][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.037183][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.037183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.037183][ T10] [ 1560.039232][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1560.039232][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.039232][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.039232][ T10] ipv6_find_idev+0x102/0x170 [ 1560.039232][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.039232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.039232][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.039232][ T10] netlink_unicast+0x449/0x710 [ 1560.039232][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.039232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.039232][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.039232][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.039232][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.039232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.039232][ T10] [ 1560.041565][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1560.041946][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1560.041946][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.041946][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.041946][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.041946][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.041946][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.041946][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.041946][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.041946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.041946][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.041946][ T10] netlink_unicast+0x449/0x710 [ 1560.041946][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.041946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.041946][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.041946][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.041946][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.041946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.041946][ T10] [ 1560.044444][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1560.044444][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.044444][ T10] ipv6_find_idev+0x102/0x170 [ 1560.044444][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.044444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.044444][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.044444][ T10] netlink_unicast+0x449/0x710 [ 1560.044444][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.044444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.044444][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.044444][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.044444][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.044444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.044444][ T10] [ 1560.046351][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1560.046351][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.046351][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.046351][ T10] ipv6_find_idev+0x102/0x170 [ 1560.046351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.046351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.046351][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.046351][ T10] netlink_unicast+0x449/0x710 [ 1560.046351][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.046351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.046351][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.046351][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.046351][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.046351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.046351][ T10] [ 1560.048441][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1560.048808][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1560.048808][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.048808][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.048808][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.048808][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.048808][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.048808][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.048808][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.048808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.048808][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.048808][ T10] netlink_unicast+0x449/0x710 [ 1560.048808][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.048808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.048808][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.048808][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.048808][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.048808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.048808][ T10] [ 1560.051135][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1560.051135][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.051135][ T10] ipv6_find_idev+0x102/0x170 [ 1560.051135][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.051135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.051135][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.051135][ T10] netlink_unicast+0x449/0x710 [ 1560.051135][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.051135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.051135][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.051135][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.051135][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.051135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.051135][ T10] [ 1560.052931][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1560.052931][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.052931][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.052931][ T10] ipv6_find_idev+0x102/0x170 [ 1560.052931][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.052931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.052931][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.052931][ T10] netlink_unicast+0x449/0x710 [ 1560.052931][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.052931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.052931][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.052931][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.052931][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.052931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.052931][ T10] [ 1560.054949][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1560.055313][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1560.055313][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.055313][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.055313][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.055313][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.055313][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.055313][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.055313][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.055313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.055313][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.055313][ T10] netlink_unicast+0x449/0x710 [ 1560.055313][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.055313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.055313][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.055313][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.055313][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.055313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.055313][ T10] [ 1560.057817][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1560.057817][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.057817][ T10] ipv6_find_idev+0x102/0x170 [ 1560.057817][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.057817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.057817][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.057817][ T10] netlink_unicast+0x449/0x710 [ 1560.057817][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.057817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.057817][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.057817][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.057817][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.057817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.057817][ T10] [ 1560.059644][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1560.059644][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.059644][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.059644][ T10] ipv6_find_idev+0x102/0x170 [ 1560.059644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.059644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.059644][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.059644][ T10] netlink_unicast+0x449/0x710 [ 1560.059644][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.059644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.059644][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.059644][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.059644][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.059644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.059644][ T10] [ 1560.061741][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1560.062106][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1560.062106][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.062106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.062106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.062106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.062106][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.062106][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.062106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.062106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.062106][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.062106][ T10] netlink_unicast+0x449/0x710 [ 1560.062106][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.062106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.062106][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.062106][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.062106][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.062106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.062106][ T10] [ 1560.064527][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1560.064527][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.064527][ T10] ipv6_find_idev+0x102/0x170 [ 1560.064527][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.064527][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.064527][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.064527][ T10] netlink_unicast+0x449/0x710 [ 1560.064527][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.064527][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.064527][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.064527][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.064527][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.064527][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.064527][ T10] [ 1560.066356][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1560.066356][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.066356][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.066356][ T10] ipv6_find_idev+0x102/0x170 [ 1560.066356][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.066356][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.066356][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.066356][ T10] netlink_unicast+0x449/0x710 [ 1560.066356][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.066356][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.066356][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.066356][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.066356][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.066356][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.066356][ T10] [ 1560.068499][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1560.068875][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1560.068875][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.068875][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.068875][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.068875][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.068875][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.068875][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.068875][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.068875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.068875][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.068875][ T10] netlink_unicast+0x449/0x710 [ 1560.068875][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.068875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.068875][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.068875][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.068875][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.068875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.068875][ T10] [ 1560.071248][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1560.071248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.071248][ T10] ipv6_find_idev+0x102/0x170 [ 1560.071248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.071248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.071248][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.071248][ T10] netlink_unicast+0x449/0x710 [ 1560.071248][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.071248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.071248][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.071248][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.071248][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.071248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.071248][ T10] [ 1560.073187][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1560.073187][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.073187][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.073187][ T10] ipv6_find_idev+0x102/0x170 [ 1560.073187][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.073187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.073187][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.073187][ T10] netlink_unicast+0x449/0x710 [ 1560.073187][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.073187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.073187][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.073187][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.073187][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.073187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.073187][ T10] [ 1560.075434][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1560.075800][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1560.075800][ T10] netdev_get_by_index+0x5e/0x80 [ 1560.075800][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1560.075800][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1560.075800][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1560.075800][ T10] ipv6_add_addr+0x411/0x2000 [ 1560.075800][ T10] inet6_addr_add+0x30e/0xa40 [ 1560.075800][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1560.075800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.075800][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.075800][ T10] netlink_unicast+0x449/0x710 [ 1560.075800][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.075800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.075800][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.075800][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.075800][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.075800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.075800][ T10] [ 1560.078346][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1560.078346][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1560.078346][ T10] ipv6_find_idev+0x102/0x170 [ 1560.078346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.078346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.078346][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.078346][ T10] netlink_unicast+0x449/0x710 [ 1560.078346][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.078346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.078346][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.078346][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.078346][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.078346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.078346][ T10] [ 1560.080489][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1560.080489][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1560.080489][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1560.080489][ T10] ipv6_find_idev+0x102/0x170 [ 1560.080489][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1560.080489][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1560.080489][ T10] netlink_rcv_skb+0x130/0x360 [ 1560.080489][ T10] netlink_unicast+0x449/0x710 [ 1560.080489][ T10] netlink_sendmsg+0x723/0xbe0 [ 1560.080489][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1560.080489][ T10] ___sys_sendmsg+0xee/0x170 [ 1560.080489][ T10] __sys_sendmsg+0xcd/0x170 [ 1560.080489][ T10] do_syscall_64+0xc6/0x1e0 [ 1560.080489][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1560.080489][ T10] [ 1570.219663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1570.220008][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1570.220008][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.220008][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.220008][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.220008][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.220008][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.220008][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.220008][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.220008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.220008][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.220008][ T10] netlink_unicast+0x449/0x710 [ 1570.220008][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.220008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.220008][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.220008][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.220008][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.220008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.220008][ T10] [ 1570.222033][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1570.222033][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.222033][ T10] ipv6_find_idev+0x102/0x170 [ 1570.222033][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.222033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.222033][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.222033][ T10] netlink_unicast+0x449/0x710 [ 1570.222033][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.222033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.222033][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.222033][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.222033][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.222033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.222033][ T10] [ 1570.223569][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1570.223569][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.223569][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.223569][ T10] ipv6_find_idev+0x102/0x170 [ 1570.223569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.223569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.223569][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.223569][ T10] netlink_unicast+0x449/0x710 [ 1570.223569][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.223569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.223569][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.223569][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.223569][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.223569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.223569][ T10] [ 1570.225386][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1570.225782][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1570.225782][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.225782][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.225782][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.225782][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.225782][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.225782][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.225782][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.225782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.225782][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.225782][ T10] netlink_unicast+0x449/0x710 [ 1570.225782][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.225782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.225782][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.225782][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.225782][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.225782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.225782][ T10] [ 1570.227782][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1570.227782][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.227782][ T10] ipv6_find_idev+0x102/0x170 [ 1570.227782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.227782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.227782][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.227782][ T10] netlink_unicast+0x449/0x710 [ 1570.227782][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.227782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.227782][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.227782][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.227782][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.227782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.227782][ T10] [ 1570.229325][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1570.229325][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.229325][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.229325][ T10] ipv6_find_idev+0x102/0x170 [ 1570.229325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.229325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.229325][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.229325][ T10] netlink_unicast+0x449/0x710 [ 1570.229325][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.229325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.229325][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.229325][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.229325][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.229325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.229325][ T10] [ 1570.231019][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1570.231295][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1570.231295][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.231295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.231295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.231295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.231295][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.231295][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.231295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.231295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.231295][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.231295][ T10] netlink_unicast+0x449/0x710 [ 1570.231295][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.231295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.231295][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.231295][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.231295][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.231295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.231295][ T10] [ 1570.233297][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1570.233297][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.233297][ T10] ipv6_find_idev+0x102/0x170 [ 1570.233297][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.233297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.233297][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.233297][ T10] netlink_unicast+0x449/0x710 [ 1570.233297][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.233297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.233297][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.233297][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.233297][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.233297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.233297][ T10] [ 1570.234836][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1570.234836][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.234836][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.234836][ T10] ipv6_find_idev+0x102/0x170 [ 1570.234836][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.234836][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.234836][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.234836][ T10] netlink_unicast+0x449/0x710 [ 1570.234836][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.234836][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.234836][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.234836][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.234836][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.234836][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.234836][ T10] [ 1570.237181][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1570.237450][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1570.237450][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.237450][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.237450][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.237450][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.237450][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.237450][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.237450][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.237450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.237450][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.237450][ T10] netlink_unicast+0x449/0x710 [ 1570.237450][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.237450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.237450][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.237450][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.237450][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.237450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.237450][ T10] [ 1570.239433][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1570.239433][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.239433][ T10] ipv6_find_idev+0x102/0x170 [ 1570.239433][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.239433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.239433][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.239433][ T10] netlink_unicast+0x449/0x710 [ 1570.239433][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.239433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.239433][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.239433][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.239433][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.239433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.239433][ T10] [ 1570.241027][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1570.241027][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.241027][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.241027][ T10] ipv6_find_idev+0x102/0x170 [ 1570.241027][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.241027][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.241027][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.241027][ T10] netlink_unicast+0x449/0x710 [ 1570.241027][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.241027][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.241027][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.241027][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.241027][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.241027][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.241027][ T10] [ 1570.243012][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1570.243279][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1570.243279][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.243279][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.243279][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.243279][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.243279][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.243279][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.243279][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.243279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.243279][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.243279][ T10] netlink_unicast+0x449/0x710 [ 1570.243279][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.243279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.243279][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.243279][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.243279][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.243279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.243279][ T10] [ 1570.245332][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1570.245332][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.245332][ T10] ipv6_find_idev+0x102/0x170 [ 1570.245332][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.245332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.245332][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.245332][ T10] netlink_unicast+0x449/0x710 [ 1570.245332][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.245332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.245332][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.245332][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.245332][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.245332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.245332][ T10] [ 1570.246869][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1570.246869][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.246869][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.246869][ T10] ipv6_find_idev+0x102/0x170 [ 1570.246869][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.246869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.246869][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.246869][ T10] netlink_unicast+0x449/0x710 [ 1570.246869][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.246869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.246869][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.246869][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.246869][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.246869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.246869][ T10] [ 1570.248780][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1570.249048][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1570.249048][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.249048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.249048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.249048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.249048][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.249048][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.249048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.249048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.249048][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.249048][ T10] netlink_unicast+0x449/0x710 [ 1570.249048][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.249048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.249048][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.249048][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.249048][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.249048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.249048][ T10] [ 1570.251278][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1570.251278][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.251278][ T10] ipv6_find_idev+0x102/0x170 [ 1570.251278][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.251278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.251278][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.251278][ T10] netlink_unicast+0x449/0x710 [ 1570.251278][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.251278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.251278][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.251278][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.251278][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.251278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.251278][ T10] [ 1570.253004][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1570.253004][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.253004][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.253004][ T10] ipv6_find_idev+0x102/0x170 [ 1570.253004][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.253004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.253004][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.253004][ T10] netlink_unicast+0x449/0x710 [ 1570.253004][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.253004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.253004][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.253004][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.253004][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.253004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.253004][ T10] [ 1570.254911][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1570.255184][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1570.255184][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.255184][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.255184][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.255184][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.255184][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.255184][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.255184][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.255184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.255184][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.255184][ T10] netlink_unicast+0x449/0x710 [ 1570.255184][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.255184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.255184][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.255184][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.255184][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.255184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.255184][ T10] [ 1570.257420][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1570.257420][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.257420][ T10] ipv6_find_idev+0x102/0x170 [ 1570.257420][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.257420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.257420][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.257420][ T10] netlink_unicast+0x449/0x710 [ 1570.257420][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.257420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.257420][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.257420][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.257420][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.257420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.257420][ T10] [ 1570.259070][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1570.259070][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.259070][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.259070][ T10] ipv6_find_idev+0x102/0x170 [ 1570.259070][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.259070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.259070][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.259070][ T10] netlink_unicast+0x449/0x710 [ 1570.259070][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.259070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.259070][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.259070][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.259070][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.259070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.259070][ T10] [ 1570.260986][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1570.261253][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1570.261253][ T10] netdev_get_by_index+0x5e/0x80 [ 1570.261253][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1570.261253][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1570.261253][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1570.261253][ T10] ipv6_add_addr+0x411/0x2000 [ 1570.261253][ T10] inet6_addr_add+0x30e/0xa40 [ 1570.261253][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1570.261253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.261253][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.261253][ T10] netlink_unicast+0x449/0x710 [ 1570.261253][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.261253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.261253][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.261253][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.261253][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.261253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.261253][ T10] [ 1570.263311][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1570.263311][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1570.263311][ T10] ipv6_find_idev+0x102/0x170 [ 1570.263311][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.263311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.263311][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.263311][ T10] netlink_unicast+0x449/0x710 [ 1570.263311][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.263311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.263311][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.263311][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.263311][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.263311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.263311][ T10] [ 1570.264933][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1570.264933][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1570.264933][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1570.264933][ T10] ipv6_find_idev+0x102/0x170 [ 1570.264933][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1570.264933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1570.264933][ T10] netlink_rcv_skb+0x130/0x360 [ 1570.264933][ T10] netlink_unicast+0x449/0x710 [ 1570.264933][ T10] netlink_sendmsg+0x723/0xbe0 [ 1570.264933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1570.264933][ T10] ___sys_sendmsg+0xee/0x170 [ 1570.264933][ T10] __sys_sendmsg+0xcd/0x170 [ 1570.264933][ T10] do_syscall_64+0xc6/0x1e0 [ 1570.264933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1570.264933][ T10] [ 1580.340312][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1580.340639][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1580.340639][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.340639][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.340639][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.340639][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.340639][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.340639][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.340639][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.340639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.340639][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.340639][ T10] netlink_unicast+0x449/0x710 [ 1580.340639][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.340639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.340639][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.340639][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.340639][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.340639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.340639][ T10] [ 1580.342714][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1580.342714][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.342714][ T10] ipv6_find_idev+0x102/0x170 [ 1580.342714][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.342714][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.342714][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.342714][ T10] netlink_unicast+0x449/0x710 [ 1580.342714][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.342714][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.342714][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.342714][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.342714][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.342714][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.342714][ T10] [ 1580.344303][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1580.344303][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.344303][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.344303][ T10] ipv6_find_idev+0x102/0x170 [ 1580.344303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.344303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.344303][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.344303][ T10] netlink_unicast+0x449/0x710 [ 1580.344303][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.344303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.344303][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.344303][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.344303][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.344303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.344303][ T10] [ 1580.346034][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1580.346318][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1580.346318][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.346318][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.346318][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.346318][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.346318][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.346318][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.346318][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.346318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.346318][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.346318][ T10] netlink_unicast+0x449/0x710 [ 1580.346318][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.346318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.346318][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.346318][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.346318][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.346318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.346318][ T10] [ 1580.348449][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1580.348449][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.348449][ T10] ipv6_find_idev+0x102/0x170 [ 1580.348449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.348449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.348449][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.348449][ T10] netlink_unicast+0x449/0x710 [ 1580.348449][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.348449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.348449][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.348449][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.348449][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.348449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.348449][ T10] [ 1580.350073][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1580.350073][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.350073][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.350073][ T10] ipv6_find_idev+0x102/0x170 [ 1580.350073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.350073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.350073][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.350073][ T10] netlink_unicast+0x449/0x710 [ 1580.350073][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.350073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.350073][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.350073][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.350073][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.350073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.350073][ T10] [ 1580.351967][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1580.352260][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1580.352260][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.352260][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.352260][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.352260][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.352260][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.352260][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.352260][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.352260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.352260][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.352260][ T10] netlink_unicast+0x449/0x710 [ 1580.352260][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.352260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.352260][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.352260][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.352260][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.352260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.352260][ T10] [ 1580.354369][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1580.354369][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.354369][ T10] ipv6_find_idev+0x102/0x170 [ 1580.354369][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.354369][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.354369][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.354369][ T10] netlink_unicast+0x449/0x710 [ 1580.354369][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.354369][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.354369][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.354369][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.354369][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.354369][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.354369][ T10] [ 1580.355907][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1580.355907][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.355907][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.355907][ T10] ipv6_find_idev+0x102/0x170 [ 1580.355907][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.355907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.355907][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.355907][ T10] netlink_unicast+0x449/0x710 [ 1580.355907][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.355907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.355907][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.355907][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.355907][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.355907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.355907][ T10] [ 1580.357795][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1580.358066][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1580.358066][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.358066][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.358066][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.358066][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.358066][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.358066][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.358066][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.358066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.358066][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.358066][ T10] netlink_unicast+0x449/0x710 [ 1580.358066][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.358066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.358066][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.358066][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.358066][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.358066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.358066][ T10] [ 1580.360141][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1580.360141][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.360141][ T10] ipv6_find_idev+0x102/0x170 [ 1580.360141][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.360141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.360141][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.360141][ T10] netlink_unicast+0x449/0x710 [ 1580.360141][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.360141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.360141][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.360141][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.360141][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.360141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.360141][ T10] [ 1580.361682][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1580.361682][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.361682][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.361682][ T10] ipv6_find_idev+0x102/0x170 [ 1580.361682][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.361682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.361682][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.361682][ T10] netlink_unicast+0x449/0x710 [ 1580.361682][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.361682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.361682][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.361682][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.361682][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.361682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.361682][ T10] [ 1580.363861][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1580.364578][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1580.364578][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.364578][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.364578][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.364578][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.364578][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.364578][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.364578][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.364578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.364578][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.364578][ T10] netlink_unicast+0x449/0x710 [ 1580.364578][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.364578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.364578][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.364578][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.364578][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.364578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.364578][ T10] [ 1580.366577][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1580.366577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.366577][ T10] ipv6_find_idev+0x102/0x170 [ 1580.366577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.366577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.366577][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.366577][ T10] netlink_unicast+0x449/0x710 [ 1580.366577][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.366577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.366577][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.366577][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.366577][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.366577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.366577][ T10] [ 1580.368107][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1580.368107][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.368107][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.368107][ T10] ipv6_find_idev+0x102/0x170 [ 1580.368107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.368107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.368107][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.368107][ T10] netlink_unicast+0x449/0x710 [ 1580.368107][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.368107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.368107][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.368107][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.368107][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.368107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.368107][ T10] [ 1580.369803][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1580.370141][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1580.370141][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.370141][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.370141][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.370141][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.370141][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.370141][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.370141][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.370141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.370141][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.370141][ T10] netlink_unicast+0x449/0x710 [ 1580.370141][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.370141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.370141][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.370141][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.370141][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.370141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.370141][ T10] [ 1580.372386][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1580.372386][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.372386][ T10] ipv6_find_idev+0x102/0x170 [ 1580.372386][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.372386][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.372386][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.372386][ T10] netlink_unicast+0x449/0x710 [ 1580.372386][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.372386][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.372386][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.372386][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.372386][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.372386][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.372386][ T10] [ 1580.374114][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1580.374114][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.374114][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.374114][ T10] ipv6_find_idev+0x102/0x170 [ 1580.374114][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.374114][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.374114][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.374114][ T10] netlink_unicast+0x449/0x710 [ 1580.374114][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.374114][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.374114][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.374114][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.374114][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.374114][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.374114][ T10] [ 1580.376102][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1580.376434][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1580.376434][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.376434][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.376434][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.376434][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.376434][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.376434][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.376434][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.376434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.376434][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.376434][ T10] netlink_unicast+0x449/0x710 [ 1580.376434][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.376434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.376434][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.376434][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.376434][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.376434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.376434][ T10] [ 1580.378606][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1580.378606][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.378606][ T10] ipv6_find_idev+0x102/0x170 [ 1580.378606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.378606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.378606][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.378606][ T10] netlink_unicast+0x449/0x710 [ 1580.378606][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.378606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.378606][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.378606][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.378606][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.378606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.378606][ T10] [ 1580.380318][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1580.380318][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.380318][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.380318][ T10] ipv6_find_idev+0x102/0x170 [ 1580.380318][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.380318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.380318][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.380318][ T10] netlink_unicast+0x449/0x710 [ 1580.380318][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.380318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.380318][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.380318][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.380318][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.380318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.380318][ T10] [ 1580.382114][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1580.382388][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1580.382388][ T10] netdev_get_by_index+0x5e/0x80 [ 1580.382388][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1580.382388][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1580.382388][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1580.382388][ T10] ipv6_add_addr+0x411/0x2000 [ 1580.382388][ T10] inet6_addr_add+0x30e/0xa40 [ 1580.382388][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1580.382388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.382388][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.382388][ T10] netlink_unicast+0x449/0x710 [ 1580.382388][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.382388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.382388][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.382388][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.382388][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.382388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.382388][ T10] [ 1580.384576][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1580.384576][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1580.384576][ T10] ipv6_find_idev+0x102/0x170 [ 1580.384576][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.384576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.384576][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.384576][ T10] netlink_unicast+0x449/0x710 [ 1580.384576][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.384576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.384576][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.384576][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.384576][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.384576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.384576][ T10] [ 1580.386292][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1580.386292][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1580.386292][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1580.386292][ T10] ipv6_find_idev+0x102/0x170 [ 1580.386292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1580.386292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1580.386292][ T10] netlink_rcv_skb+0x130/0x360 [ 1580.386292][ T10] netlink_unicast+0x449/0x710 [ 1580.386292][ T10] netlink_sendmsg+0x723/0xbe0 [ 1580.386292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1580.386292][ T10] ___sys_sendmsg+0xee/0x170 [ 1580.386292][ T10] __sys_sendmsg+0xcd/0x170 [ 1580.386292][ T10] do_syscall_64+0xc6/0x1e0 [ 1580.386292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1580.386292][ T10] [ 1590.507771][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1590.508116][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1590.508116][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.508116][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.508116][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.508116][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.508116][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.508116][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.508116][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.508116][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.508116][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.508116][ T10] netlink_unicast+0x449/0x710 [ 1590.508116][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.508116][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.508116][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.508116][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.508116][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.508116][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.508116][ T10] [ 1590.510180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1590.510180][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.510180][ T10] ipv6_find_idev+0x102/0x170 [ 1590.510180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.510180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.510180][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.510180][ T10] netlink_unicast+0x449/0x710 [ 1590.510180][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.510180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.510180][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.510180][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.510180][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.510180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.510180][ T10] [ 1590.511729][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1590.511729][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.511729][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.511729][ T10] ipv6_find_idev+0x102/0x170 [ 1590.511729][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.511729][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.511729][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.511729][ T10] netlink_unicast+0x449/0x710 [ 1590.511729][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.511729][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.511729][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.511729][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.511729][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.511729][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.511729][ T10] [ 1590.513419][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1590.513702][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1590.513702][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.513702][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.513702][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.513702][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.513702][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.513702][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.513702][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.513702][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.513702][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.513702][ T10] netlink_unicast+0x449/0x710 [ 1590.513702][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.513702][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.513702][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.513702][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.513702][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.513702][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.513702][ T10] [ 1590.515720][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1590.515720][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.515720][ T10] ipv6_find_idev+0x102/0x170 [ 1590.515720][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.515720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.515720][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.515720][ T10] netlink_unicast+0x449/0x710 [ 1590.515720][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.515720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.515720][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.515720][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.515720][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.515720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.515720][ T10] [ 1590.517268][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1590.517268][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.517268][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.517268][ T10] ipv6_find_idev+0x102/0x170 [ 1590.517268][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.517268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.517268][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.517268][ T10] netlink_unicast+0x449/0x710 [ 1590.517268][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.517268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.517268][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.517268][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.517268][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.517268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.517268][ T10] [ 1590.518962][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1590.519229][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1590.519229][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.519229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.519229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.519229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.519229][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.519229][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.519229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.519229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.519229][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.519229][ T10] netlink_unicast+0x449/0x710 [ 1590.519229][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.519229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.519229][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.519229][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.519229][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.519229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.519229][ T10] [ 1590.521259][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1590.521259][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.521259][ T10] ipv6_find_idev+0x102/0x170 [ 1590.521259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.521259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.521259][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.521259][ T10] netlink_unicast+0x449/0x710 [ 1590.521259][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.521259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.521259][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.521259][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.521259][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.521259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.521259][ T10] [ 1590.522835][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1590.522835][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.522835][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.522835][ T10] ipv6_find_idev+0x102/0x170 [ 1590.522835][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.522835][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.522835][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.522835][ T10] netlink_unicast+0x449/0x710 [ 1590.522835][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.522835][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.522835][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.522835][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.522835][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.522835][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.522835][ T10] [ 1590.524816][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1590.525097][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1590.525097][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.525097][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.525097][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.525097][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.525097][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.525097][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.525097][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.525097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.525097][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.525097][ T10] netlink_unicast+0x449/0x710 [ 1590.525097][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.525097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.525097][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.525097][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.525097][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.525097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.525097][ T10] [ 1590.527370][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1590.527370][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.527370][ T10] ipv6_find_idev+0x102/0x170 [ 1590.527370][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.527370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.527370][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.527370][ T10] netlink_unicast+0x449/0x710 [ 1590.527370][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.527370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.527370][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.527370][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.527370][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.527370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.527370][ T10] [ 1590.529065][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1590.529065][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.529065][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.529065][ T10] ipv6_find_idev+0x102/0x170 [ 1590.529065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.529065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.529065][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.529065][ T10] netlink_unicast+0x449/0x710 [ 1590.529065][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.529065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.529065][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.529065][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.529065][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.529065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.529065][ T10] [ 1590.531029][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1590.531292][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1590.531292][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.531292][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.531292][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.531292][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.531292][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.531292][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.531292][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.531292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.531292][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.531292][ T10] netlink_unicast+0x449/0x710 [ 1590.531292][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.531292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.531292][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.531292][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.531292][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.531292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.531292][ T10] [ 1590.533430][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1590.533430][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.533430][ T10] ipv6_find_idev+0x102/0x170 [ 1590.533430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.533430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.533430][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.533430][ T10] netlink_unicast+0x449/0x710 [ 1590.533430][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.533430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.533430][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.533430][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.533430][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.533430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.533430][ T10] [ 1590.535196][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1590.535196][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.535196][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.535196][ T10] ipv6_find_idev+0x102/0x170 [ 1590.535196][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.535196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.535196][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.535196][ T10] netlink_unicast+0x449/0x710 [ 1590.535196][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.535196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.535196][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.535196][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.535196][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.535196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.535196][ T10] [ 1590.537539][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1590.537863][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1590.537863][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.537863][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.537863][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.537863][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.537863][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.537863][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.537863][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.537863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.537863][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.537863][ T10] netlink_unicast+0x449/0x710 [ 1590.537863][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.537863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.537863][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.537863][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.537863][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.537863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.537863][ T10] [ 1590.539878][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1590.539878][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.539878][ T10] ipv6_find_idev+0x102/0x170 [ 1590.539878][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.539878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.539878][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.539878][ T10] netlink_unicast+0x449/0x710 [ 1590.539878][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.539878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.539878][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.539878][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.539878][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.539878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.539878][ T10] [ 1590.541589][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1590.541589][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.541589][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.541589][ T10] ipv6_find_idev+0x102/0x170 [ 1590.541589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.541589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.541589][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.541589][ T10] netlink_unicast+0x449/0x710 [ 1590.541589][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.541589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.541589][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.541589][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.541589][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.541589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.541589][ T10] [ 1590.543599][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1590.543929][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1590.543929][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.543929][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.543929][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.543929][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.543929][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.543929][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.543929][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.543929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.543929][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.543929][ T10] netlink_unicast+0x449/0x710 [ 1590.543929][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.543929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.543929][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.543929][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.543929][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.543929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.543929][ T10] [ 1590.545929][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1590.545929][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.545929][ T10] ipv6_find_idev+0x102/0x170 [ 1590.545929][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.545929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.545929][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.545929][ T10] netlink_unicast+0x449/0x710 [ 1590.545929][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.545929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.545929][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.545929][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.545929][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.545929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.545929][ T10] [ 1590.547488][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1590.547488][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.547488][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.547488][ T10] ipv6_find_idev+0x102/0x170 [ 1590.547488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.547488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.547488][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.547488][ T10] netlink_unicast+0x449/0x710 [ 1590.547488][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.547488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.547488][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.547488][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.547488][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.547488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.547488][ T10] [ 1590.549367][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1590.549642][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1590.549642][ T10] netdev_get_by_index+0x5e/0x80 [ 1590.549642][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1590.549642][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1590.549642][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1590.549642][ T10] ipv6_add_addr+0x411/0x2000 [ 1590.549642][ T10] inet6_addr_add+0x30e/0xa40 [ 1590.549642][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1590.549642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.549642][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.549642][ T10] netlink_unicast+0x449/0x710 [ 1590.549642][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.549642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.549642][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.549642][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.549642][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.549642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.549642][ T10] [ 1590.551719][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1590.551719][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1590.551719][ T10] ipv6_find_idev+0x102/0x170 [ 1590.551719][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.551719][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.551719][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.551719][ T10] netlink_unicast+0x449/0x710 [ 1590.551719][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.551719][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.551719][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.551719][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.551719][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.551719][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.551719][ T10] [ 1590.553347][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1590.553347][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1590.553347][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1590.553347][ T10] ipv6_find_idev+0x102/0x170 [ 1590.553347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1590.553347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1590.553347][ T10] netlink_rcv_skb+0x130/0x360 [ 1590.553347][ T10] netlink_unicast+0x449/0x710 [ 1590.553347][ T10] netlink_sendmsg+0x723/0xbe0 [ 1590.553347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1590.553347][ T10] ___sys_sendmsg+0xee/0x170 [ 1590.553347][ T10] __sys_sendmsg+0xcd/0x170 [ 1590.553347][ T10] do_syscall_64+0xc6/0x1e0 [ 1590.553347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1590.553347][ T10] [ 1600.603759][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1600.604092][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1600.604092][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.604092][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.604092][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.604092][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.604092][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.604092][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.604092][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.604092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.604092][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.604092][ T10] netlink_unicast+0x449/0x710 [ 1600.604092][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.604092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.604092][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.604092][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.604092][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.604092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.604092][ T10] [ 1600.606164][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1600.606164][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.606164][ T10] ipv6_find_idev+0x102/0x170 [ 1600.606164][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.606164][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.606164][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.606164][ T10] netlink_unicast+0x449/0x710 [ 1600.606164][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.606164][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.606164][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.606164][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.606164][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.606164][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.606164][ T10] [ 1600.607736][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1600.607736][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.607736][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.607736][ T10] ipv6_find_idev+0x102/0x170 [ 1600.607736][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.607736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.607736][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.607736][ T10] netlink_unicast+0x449/0x710 [ 1600.607736][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.607736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.607736][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.607736][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.607736][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.607736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.607736][ T10] [ 1600.609429][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1600.609709][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1600.609709][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.609709][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.609709][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.609709][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.609709][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.609709][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.609709][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.609709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.609709][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.609709][ T10] netlink_unicast+0x449/0x710 [ 1600.609709][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.609709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.609709][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.609709][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.609709][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.609709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.609709][ T10] [ 1600.611737][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1600.611737][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.611737][ T10] ipv6_find_idev+0x102/0x170 [ 1600.611737][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.611737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.611737][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.611737][ T10] netlink_unicast+0x449/0x710 [ 1600.611737][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.611737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.611737][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.611737][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.611737][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.611737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.611737][ T10] [ 1600.613331][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1600.613331][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.613331][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.613331][ T10] ipv6_find_idev+0x102/0x170 [ 1600.613331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.613331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.613331][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.613331][ T10] netlink_unicast+0x449/0x710 [ 1600.613331][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.613331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.613331][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.613331][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.613331][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.613331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.613331][ T10] [ 1600.615044][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1600.615319][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1600.615319][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.615319][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.615319][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.615319][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.615319][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.615319][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.615319][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.615319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.615319][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.615319][ T10] netlink_unicast+0x449/0x710 [ 1600.615319][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.615319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.615319][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.615319][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.615319][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.615319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.615319][ T10] [ 1600.617343][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1600.617343][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.617343][ T10] ipv6_find_idev+0x102/0x170 [ 1600.617343][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.617343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.617343][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.617343][ T10] netlink_unicast+0x449/0x710 [ 1600.617343][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.617343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.617343][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.617343][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.617343][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.617343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.617343][ T10] [ 1600.618904][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1600.618904][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.618904][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.618904][ T10] ipv6_find_idev+0x102/0x170 [ 1600.618904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.618904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.618904][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.618904][ T10] netlink_unicast+0x449/0x710 [ 1600.618904][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.618904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.618904][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.618904][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.618904][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.618904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.618904][ T10] [ 1600.620603][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1600.620879][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1600.620879][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.620879][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.620879][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.620879][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.620879][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.620879][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.620879][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.620879][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.620879][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.620879][ T10] netlink_unicast+0x449/0x710 [ 1600.620879][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.620879][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.620879][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.620879][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.620879][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.620879][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.620879][ T10] [ 1600.622982][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1600.622982][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.622982][ T10] ipv6_find_idev+0x102/0x170 [ 1600.622982][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.622982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.622982][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.622982][ T10] netlink_unicast+0x449/0x710 [ 1600.622982][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.622982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.622982][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.622982][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.622982][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.622982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.622982][ T10] [ 1600.624706][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1600.624706][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.624706][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.624706][ T10] ipv6_find_idev+0x102/0x170 [ 1600.624706][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.624706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.624706][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.624706][ T10] netlink_unicast+0x449/0x710 [ 1600.624706][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.624706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.624706][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.624706][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.624706][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.624706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.624706][ T10] [ 1600.626578][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1600.627377][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1600.627377][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.627377][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.627377][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.627377][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.627377][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.627377][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.627377][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.627377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.627377][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.627377][ T10] netlink_unicast+0x449/0x710 [ 1600.627377][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.627377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.627377][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.627377][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.627377][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.627377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.627377][ T10] [ 1600.629411][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1600.629411][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.629411][ T10] ipv6_find_idev+0x102/0x170 [ 1600.629411][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.629411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.629411][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.629411][ T10] netlink_unicast+0x449/0x710 [ 1600.629411][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.629411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.629411][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.629411][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.629411][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.629411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.629411][ T10] [ 1600.630956][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1600.630956][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.630956][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.630956][ T10] ipv6_find_idev+0x102/0x170 [ 1600.630956][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.630956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.630956][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.630956][ T10] netlink_unicast+0x449/0x710 [ 1600.630956][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.630956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.630956][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.630956][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.630956][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.630956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.630956][ T10] [ 1600.632713][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1600.632987][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1600.632987][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.632987][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.632987][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.632987][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.632987][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.632987][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.632987][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.632987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.632987][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.632987][ T10] netlink_unicast+0x449/0x710 [ 1600.632987][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.632987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.632987][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.632987][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.632987][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.632987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.632987][ T10] [ 1600.635065][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1600.635065][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.635065][ T10] ipv6_find_idev+0x102/0x170 [ 1600.635065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.635065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.635065][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.635065][ T10] netlink_unicast+0x449/0x710 [ 1600.635065][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.635065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.635065][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.635065][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.635065][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.635065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.635065][ T10] [ 1600.636622][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1600.636622][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.636622][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.636622][ T10] ipv6_find_idev+0x102/0x170 [ 1600.636622][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.636622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.636622][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.636622][ T10] netlink_unicast+0x449/0x710 [ 1600.636622][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.636622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.636622][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.636622][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.636622][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.636622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.636622][ T10] [ 1600.638633][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1600.639028][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1600.639028][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.639028][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.639028][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.639028][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.639028][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.639028][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.639028][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.639028][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.639028][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.639028][ T10] netlink_unicast+0x449/0x710 [ 1600.639028][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.639028][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.639028][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.639028][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.639028][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.639028][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.639028][ T10] [ 1600.641224][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1600.641224][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.641224][ T10] ipv6_find_idev+0x102/0x170 [ 1600.641224][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.641224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.641224][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.641224][ T10] netlink_unicast+0x449/0x710 [ 1600.641224][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.641224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.641224][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.641224][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.641224][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.641224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.641224][ T10] [ 1600.642956][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1600.642956][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.642956][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.642956][ T10] ipv6_find_idev+0x102/0x170 [ 1600.642956][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.642956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.642956][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.642956][ T10] netlink_unicast+0x449/0x710 [ 1600.642956][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.642956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.642956][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.642956][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.642956][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.642956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.642956][ T10] [ 1600.644950][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1600.645267][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1600.645267][ T10] netdev_get_by_index+0x5e/0x80 [ 1600.645267][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1600.645267][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1600.645267][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1600.645267][ T10] ipv6_add_addr+0x411/0x2000 [ 1600.645267][ T10] inet6_addr_add+0x30e/0xa40 [ 1600.645267][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1600.645267][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.645267][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.645267][ T10] netlink_unicast+0x449/0x710 [ 1600.645267][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.645267][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.645267][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.645267][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.645267][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.645267][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.645267][ T10] [ 1600.647357][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1600.647357][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1600.647357][ T10] ipv6_find_idev+0x102/0x170 [ 1600.647357][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.647357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.647357][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.647357][ T10] netlink_unicast+0x449/0x710 [ 1600.647357][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.647357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.647357][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.647357][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.647357][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.647357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.647357][ T10] [ 1600.649055][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1600.649055][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1600.649055][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1600.649055][ T10] ipv6_find_idev+0x102/0x170 [ 1600.649055][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1600.649055][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1600.649055][ T10] netlink_rcv_skb+0x130/0x360 [ 1600.649055][ T10] netlink_unicast+0x449/0x710 [ 1600.649055][ T10] netlink_sendmsg+0x723/0xbe0 [ 1600.649055][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1600.649055][ T10] ___sys_sendmsg+0xee/0x170 [ 1600.649055][ T10] __sys_sendmsg+0xcd/0x170 [ 1600.649055][ T10] do_syscall_64+0xc6/0x1e0 [ 1600.649055][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1600.649055][ T10] [ 1610.788783][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1610.789180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1610.789180][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.789180][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.789180][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.789180][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.789180][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.789180][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.789180][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.789180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.789180][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.789180][ T10] netlink_unicast+0x449/0x710 [ 1610.789180][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.789180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.789180][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.789180][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.789180][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.789180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.789180][ T10] [ 1610.791237][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1610.791237][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.791237][ T10] ipv6_find_idev+0x102/0x170 [ 1610.791237][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.791237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.791237][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.791237][ T10] netlink_unicast+0x449/0x710 [ 1610.791237][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.791237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.791237][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.791237][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.791237][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.791237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.791237][ T10] [ 1610.792811][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1610.792811][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.792811][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.792811][ T10] ipv6_find_idev+0x102/0x170 [ 1610.792811][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.792811][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.792811][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.792811][ T10] netlink_unicast+0x449/0x710 [ 1610.792811][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.792811][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.792811][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.792811][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.792811][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.792811][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.792811][ T10] [ 1610.794541][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1610.794824][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1610.794824][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.794824][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.794824][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.794824][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.794824][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.794824][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.794824][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.794824][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.794824][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.794824][ T10] netlink_unicast+0x449/0x710 [ 1610.794824][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.794824][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.794824][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.794824][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.794824][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.794824][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.794824][ T10] [ 1610.796867][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1610.796867][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.796867][ T10] ipv6_find_idev+0x102/0x170 [ 1610.796867][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.796867][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.796867][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.796867][ T10] netlink_unicast+0x449/0x710 [ 1610.796867][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.796867][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.796867][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.796867][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.796867][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.796867][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.796867][ T10] [ 1610.798456][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1610.798456][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.798456][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.798456][ T10] ipv6_find_idev+0x102/0x170 [ 1610.798456][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.798456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.798456][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.798456][ T10] netlink_unicast+0x449/0x710 [ 1610.798456][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.798456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.798456][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.798456][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.798456][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.798456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.798456][ T10] [ 1610.800149][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1610.800418][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1610.800418][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.800418][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.800418][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.800418][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.800418][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.800418][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.800418][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.800418][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.800418][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.800418][ T10] netlink_unicast+0x449/0x710 [ 1610.800418][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.800418][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.800418][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.800418][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.800418][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.800418][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.800418][ T10] [ 1610.802463][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1610.802463][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.802463][ T10] ipv6_find_idev+0x102/0x170 [ 1610.802463][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.802463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.802463][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.802463][ T10] netlink_unicast+0x449/0x710 [ 1610.802463][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.802463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.802463][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.802463][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.802463][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.802463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.802463][ T10] [ 1610.804032][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1610.804032][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.804032][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.804032][ T10] ipv6_find_idev+0x102/0x170 [ 1610.804032][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.804032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.804032][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.804032][ T10] netlink_unicast+0x449/0x710 [ 1610.804032][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.804032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.804032][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.804032][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.804032][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.804032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.804032][ T10] [ 1610.805742][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1610.806017][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1610.806017][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.806017][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.806017][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.806017][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.806017][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.806017][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.806017][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.806017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.806017][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.806017][ T10] netlink_unicast+0x449/0x710 [ 1610.806017][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.806017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.806017][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.806017][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.806017][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.806017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.806017][ T10] [ 1610.808037][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1610.808037][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.808037][ T10] ipv6_find_idev+0x102/0x170 [ 1610.808037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.808037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.808037][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.808037][ T10] netlink_unicast+0x449/0x710 [ 1610.808037][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.808037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.808037][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.808037][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.808037][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.808037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.808037][ T10] [ 1610.809578][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1610.809578][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.809578][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.809578][ T10] ipv6_find_idev+0x102/0x170 [ 1610.809578][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.809578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.809578][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.809578][ T10] netlink_unicast+0x449/0x710 [ 1610.809578][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.809578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.809578][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.809578][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.809578][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.809578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.809578][ T10] [ 1610.811348][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1610.811618][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1610.811618][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.811618][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.811618][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.811618][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.811618][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.811618][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.811618][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.811618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.811618][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.811618][ T10] netlink_unicast+0x449/0x710 [ 1610.811618][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.811618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.811618][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.811618][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.811618][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.811618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.811618][ T10] [ 1610.813979][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1610.813979][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.813979][ T10] ipv6_find_idev+0x102/0x170 [ 1610.813979][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.813979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.813979][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.813979][ T10] netlink_unicast+0x449/0x710 [ 1610.813979][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.813979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.813979][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.813979][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.813979][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.813979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.813979][ T10] [ 1610.815689][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1610.815689][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.815689][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.815689][ T10] ipv6_find_idev+0x102/0x170 [ 1610.815689][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.815689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.815689][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.815689][ T10] netlink_unicast+0x449/0x710 [ 1610.815689][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.815689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.815689][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.815689][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.815689][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.815689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.815689][ T10] [ 1610.818030][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1610.818304][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1610.818304][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.818304][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.818304][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.818304][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.818304][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.818304][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.818304][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.818304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.818304][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.818304][ T10] netlink_unicast+0x449/0x710 [ 1610.818304][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.818304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.818304][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.818304][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.818304][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.818304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.818304][ T10] [ 1610.820327][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1610.820327][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.820327][ T10] ipv6_find_idev+0x102/0x170 [ 1610.820327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.820327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.820327][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.820327][ T10] netlink_unicast+0x449/0x710 [ 1610.820327][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.820327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.820327][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.820327][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.820327][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.820327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.820327][ T10] [ 1610.822027][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1610.822027][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.822027][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.822027][ T10] ipv6_find_idev+0x102/0x170 [ 1610.822027][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.822027][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.822027][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.822027][ T10] netlink_unicast+0x449/0x710 [ 1610.822027][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.822027][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.822027][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.822027][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.822027][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.822027][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.822027][ T10] [ 1610.824012][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1610.824294][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1610.824294][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.824294][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.824294][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.824294][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.824294][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.824294][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.824294][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.824294][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.824294][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.824294][ T10] netlink_unicast+0x449/0x710 [ 1610.824294][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.824294][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.824294][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.824294][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.824294][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.824294][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.824294][ T10] [ 1610.826317][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1610.826317][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.826317][ T10] ipv6_find_idev+0x102/0x170 [ 1610.826317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.826317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.826317][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.826317][ T10] netlink_unicast+0x449/0x710 [ 1610.826317][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.826317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.826317][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.826317][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.826317][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.826317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.826317][ T10] [ 1610.827868][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1610.827868][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.827868][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.827868][ T10] ipv6_find_idev+0x102/0x170 [ 1610.827868][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.827868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.827868][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.827868][ T10] netlink_unicast+0x449/0x710 [ 1610.827868][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.827868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.827868][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.827868][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.827868][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.827868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.827868][ T10] [ 1610.829786][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1610.830053][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1610.830053][ T10] netdev_get_by_index+0x5e/0x80 [ 1610.830053][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1610.830053][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1610.830053][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1610.830053][ T10] ipv6_add_addr+0x411/0x2000 [ 1610.830053][ T10] inet6_addr_add+0x30e/0xa40 [ 1610.830053][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1610.830053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.830053][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.830053][ T10] netlink_unicast+0x449/0x710 [ 1610.830053][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.830053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.830053][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.830053][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.830053][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.830053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.830053][ T10] [ 1610.832295][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1610.832295][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1610.832295][ T10] ipv6_find_idev+0x102/0x170 [ 1610.832295][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.832295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.832295][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.832295][ T10] netlink_unicast+0x449/0x710 [ 1610.832295][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.832295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.832295][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.832295][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.832295][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.832295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.832295][ T10] [ 1610.833981][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1610.833981][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1610.833981][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1610.833981][ T10] ipv6_find_idev+0x102/0x170 [ 1610.833981][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1610.833981][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1610.833981][ T10] netlink_rcv_skb+0x130/0x360 [ 1610.833981][ T10] netlink_unicast+0x449/0x710 [ 1610.833981][ T10] netlink_sendmsg+0x723/0xbe0 [ 1610.833981][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1610.833981][ T10] ___sys_sendmsg+0xee/0x170 [ 1610.833981][ T10] __sys_sendmsg+0xcd/0x170 [ 1610.833981][ T10] do_syscall_64+0xc6/0x1e0 [ 1610.833981][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1610.833981][ T10] [ 1620.901676][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1620.902140][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1620.902140][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.902140][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.902140][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.902140][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.902140][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.902140][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.902140][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.902140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.902140][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.902140][ T10] netlink_unicast+0x449/0x710 [ 1620.902140][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.902140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.902140][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.902140][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.902140][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.902140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.902140][ T10] [ 1620.904499][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1620.904499][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.904499][ T10] ipv6_find_idev+0x102/0x170 [ 1620.904499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.904499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.904499][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.904499][ T10] netlink_unicast+0x449/0x710 [ 1620.904499][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.904499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.904499][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.904499][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.904499][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.904499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.904499][ T10] [ 1620.906263][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1620.906263][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.906263][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.906263][ T10] ipv6_find_idev+0x102/0x170 [ 1620.906263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.906263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.906263][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.906263][ T10] netlink_unicast+0x449/0x710 [ 1620.906263][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.906263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.906263][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.906263][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.906263][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.906263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.906263][ T10] [ 1620.908632][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1620.908941][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1620.908941][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.908941][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.908941][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.908941][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.908941][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.908941][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.908941][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.908941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.908941][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.908941][ T10] netlink_unicast+0x449/0x710 [ 1620.908941][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.908941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.908941][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.908941][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.908941][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.908941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.908941][ T10] [ 1620.911239][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1620.911239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.911239][ T10] ipv6_find_idev+0x102/0x170 [ 1620.911239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.911239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.911239][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.911239][ T10] netlink_unicast+0x449/0x710 [ 1620.911239][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.911239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.911239][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.911239][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.911239][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.911239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.911239][ T10] [ 1620.913001][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1620.913001][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.913001][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.913001][ T10] ipv6_find_idev+0x102/0x170 [ 1620.913001][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.913001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.913001][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.913001][ T10] netlink_unicast+0x449/0x710 [ 1620.913001][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.913001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.913001][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.913001][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.913001][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.913001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.913001][ T10] [ 1620.914950][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1620.915264][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1620.915264][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.915264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.915264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.915264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.915264][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.915264][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.915264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.915264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.915264][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.915264][ T10] netlink_unicast+0x449/0x710 [ 1620.915264][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.915264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.915264][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.915264][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.915264][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.915264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.915264][ T10] [ 1620.917633][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1620.917633][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.917633][ T10] ipv6_find_idev+0x102/0x170 [ 1620.917633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.917633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.917633][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.917633][ T10] netlink_unicast+0x449/0x710 [ 1620.917633][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.917633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.917633][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.917633][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.917633][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.917633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.917633][ T10] [ 1620.919525][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1620.919525][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.919525][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.919525][ T10] ipv6_find_idev+0x102/0x170 [ 1620.919525][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.919525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.919525][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.919525][ T10] netlink_unicast+0x449/0x710 [ 1620.919525][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.919525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.919525][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.919525][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.919525][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.919525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.919525][ T10] [ 1620.922334][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1620.922717][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1620.922717][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.922717][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.922717][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.922717][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.922717][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.922717][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.922717][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.922717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.922717][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.922717][ T10] netlink_unicast+0x449/0x710 [ 1620.922717][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.922717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.922717][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.922717][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.922717][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.922717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.922717][ T10] [ 1620.925096][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1620.925096][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.925096][ T10] ipv6_find_idev+0x102/0x170 [ 1620.925096][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.925096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.925096][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.925096][ T10] netlink_unicast+0x449/0x710 [ 1620.925096][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.925096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.925096][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.925096][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.925096][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.925096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.925096][ T10] [ 1620.927033][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1620.927033][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.927033][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.927033][ T10] ipv6_find_idev+0x102/0x170 [ 1620.927033][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.927033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.927033][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.927033][ T10] netlink_unicast+0x449/0x710 [ 1620.927033][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.927033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.927033][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.927033][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.927033][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.927033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.927033][ T10] [ 1620.929122][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1620.929576][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1620.929576][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.929576][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.929576][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.929576][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.929576][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.929576][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.929576][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.929576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.929576][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.929576][ T10] netlink_unicast+0x449/0x710 [ 1620.929576][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.929576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.929576][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.929576][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.929576][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.929576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.929576][ T10] [ 1620.931932][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1620.931932][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.931932][ T10] ipv6_find_idev+0x102/0x170 [ 1620.931932][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.931932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.931932][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.931932][ T10] netlink_unicast+0x449/0x710 [ 1620.931932][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.931932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.931932][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.931932][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.931932][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.931932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.931932][ T10] [ 1620.933968][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1620.933968][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.933968][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.933968][ T10] ipv6_find_idev+0x102/0x170 [ 1620.933968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.933968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.933968][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.933968][ T10] netlink_unicast+0x449/0x710 [ 1620.933968][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.933968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.933968][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.933968][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.933968][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.933968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.933968][ T10] [ 1620.936083][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1620.936501][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1620.936501][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.936501][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.936501][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.936501][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.936501][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.936501][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.936501][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.936501][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.936501][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.936501][ T10] netlink_unicast+0x449/0x710 [ 1620.936501][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.936501][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.936501][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.936501][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.936501][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.936501][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.936501][ T10] [ 1620.939092][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1620.939092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.939092][ T10] ipv6_find_idev+0x102/0x170 [ 1620.939092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.939092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.939092][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.939092][ T10] netlink_unicast+0x449/0x710 [ 1620.939092][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.939092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.939092][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.939092][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.939092][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.939092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.939092][ T10] [ 1620.941021][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1620.941021][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.941021][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.941021][ T10] ipv6_find_idev+0x102/0x170 [ 1620.941021][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.941021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.941021][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.941021][ T10] netlink_unicast+0x449/0x710 [ 1620.941021][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.941021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.941021][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.941021][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.941021][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.941021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.941021][ T10] [ 1620.943101][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1620.943442][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1620.943442][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.943442][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.943442][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.943442][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.943442][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.943442][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.943442][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.943442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.943442][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.943442][ T10] netlink_unicast+0x449/0x710 [ 1620.943442][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.943442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.943442][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.943442][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.943442][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.943442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.943442][ T10] [ 1620.946281][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1620.946281][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.946281][ T10] ipv6_find_idev+0x102/0x170 [ 1620.946281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.946281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.946281][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.946281][ T10] netlink_unicast+0x449/0x710 [ 1620.946281][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.946281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.946281][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.946281][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.946281][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.946281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.946281][ T10] [ 1620.948140][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1620.948140][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.948140][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.948140][ T10] ipv6_find_idev+0x102/0x170 [ 1620.948140][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.948140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.948140][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.948140][ T10] netlink_unicast+0x449/0x710 [ 1620.948140][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.948140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.948140][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.948140][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.948140][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.948140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.948140][ T10] [ 1620.950382][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1620.950743][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1620.950743][ T10] netdev_get_by_index+0x5e/0x80 [ 1620.950743][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1620.950743][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1620.950743][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1620.950743][ T10] ipv6_add_addr+0x411/0x2000 [ 1620.950743][ T10] inet6_addr_add+0x30e/0xa40 [ 1620.950743][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1620.950743][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.950743][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.950743][ T10] netlink_unicast+0x449/0x710 [ 1620.950743][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.950743][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.950743][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.950743][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.950743][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.950743][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.950743][ T10] [ 1620.953155][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1620.953155][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1620.953155][ T10] ipv6_find_idev+0x102/0x170 [ 1620.953155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.953155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.953155][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.953155][ T10] netlink_unicast+0x449/0x710 [ 1620.953155][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.953155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.953155][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.953155][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.953155][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.953155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.953155][ T10] [ 1620.954986][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1620.954986][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1620.954986][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1620.954986][ T10] ipv6_find_idev+0x102/0x170 [ 1620.954986][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1620.954986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1620.954986][ T10] netlink_rcv_skb+0x130/0x360 [ 1620.954986][ T10] netlink_unicast+0x449/0x710 [ 1620.954986][ T10] netlink_sendmsg+0x723/0xbe0 [ 1620.954986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1620.954986][ T10] ___sys_sendmsg+0xee/0x170 [ 1620.954986][ T10] __sys_sendmsg+0xcd/0x170 [ 1620.954986][ T10] do_syscall_64+0xc6/0x1e0 [ 1620.954986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1620.954986][ T10] [ 1631.092661][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1631.093006][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1631.093006][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.093006][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.093006][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.093006][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.093006][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.093006][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.093006][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.093006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.093006][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.093006][ T10] netlink_unicast+0x449/0x710 [ 1631.093006][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.093006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.093006][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.093006][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.093006][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.093006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.093006][ T10] [ 1631.095019][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1631.095019][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.095019][ T10] ipv6_find_idev+0x102/0x170 [ 1631.095019][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.095019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.095019][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.095019][ T10] netlink_unicast+0x449/0x710 [ 1631.095019][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.095019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.095019][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.095019][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.095019][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.095019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.095019][ T10] [ 1631.096563][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1631.096563][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.096563][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.096563][ T10] ipv6_find_idev+0x102/0x170 [ 1631.096563][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.096563][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.096563][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.096563][ T10] netlink_unicast+0x449/0x710 [ 1631.096563][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.096563][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.096563][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.096563][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.096563][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.096563][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.096563][ T10] [ 1631.098266][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1631.098538][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1631.098538][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.098538][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.098538][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.098538][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.098538][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.098538][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.098538][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.098538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.098538][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.098538][ T10] netlink_unicast+0x449/0x710 [ 1631.098538][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.098538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.098538][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.098538][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.098538][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.098538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.098538][ T10] [ 1631.100540][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1631.100540][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.100540][ T10] ipv6_find_idev+0x102/0x170 [ 1631.100540][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.100540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.100540][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.100540][ T10] netlink_unicast+0x449/0x710 [ 1631.100540][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.100540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.100540][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.100540][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.100540][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.100540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.100540][ T10] [ 1631.102082][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1631.102082][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.102082][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.102082][ T10] ipv6_find_idev+0x102/0x170 [ 1631.102082][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.102082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.102082][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.102082][ T10] netlink_unicast+0x449/0x710 [ 1631.102082][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.102082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.102082][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.102082][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.102082][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.102082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.102082][ T10] [ 1631.103838][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1631.104113][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1631.104113][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.104113][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.104113][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.104113][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.104113][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.104113][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.104113][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.104113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.104113][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.104113][ T10] netlink_unicast+0x449/0x710 [ 1631.104113][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.104113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.104113][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.104113][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.104113][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.104113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.104113][ T10] [ 1631.106109][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1631.106109][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.106109][ T10] ipv6_find_idev+0x102/0x170 [ 1631.106109][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.106109][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.106109][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.106109][ T10] netlink_unicast+0x449/0x710 [ 1631.106109][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.106109][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.106109][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.106109][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.106109][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.106109][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.106109][ T10] [ 1631.107659][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1631.107659][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.107659][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.107659][ T10] ipv6_find_idev+0x102/0x170 [ 1631.107659][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.107659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.107659][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.107659][ T10] netlink_unicast+0x449/0x710 [ 1631.107659][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.107659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.107659][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.107659][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.107659][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.107659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.107659][ T10] [ 1631.109458][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1631.110155][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1631.110155][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.110155][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.110155][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.110155][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.110155][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.110155][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.110155][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.110155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.110155][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.110155][ T10] netlink_unicast+0x449/0x710 [ 1631.110155][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.110155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.110155][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.110155][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.110155][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.110155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.110155][ T10] [ 1631.112161][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1631.112161][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.112161][ T10] ipv6_find_idev+0x102/0x170 [ 1631.112161][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.112161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.112161][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.112161][ T10] netlink_unicast+0x449/0x710 [ 1631.112161][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.112161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.112161][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.112161][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.112161][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.112161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.112161][ T10] [ 1631.113699][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1631.113699][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.113699][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.113699][ T10] ipv6_find_idev+0x102/0x170 [ 1631.113699][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.113699][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.113699][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.113699][ T10] netlink_unicast+0x449/0x710 [ 1631.113699][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.113699][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.113699][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.113699][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.113699][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.113699][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.113699][ T10] [ 1631.115432][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1631.115754][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1631.115754][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.115754][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.115754][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.115754][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.115754][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.115754][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.115754][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.115754][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.115754][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.115754][ T10] netlink_unicast+0x449/0x710 [ 1631.115754][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.115754][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.115754][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.115754][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.115754][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.115754][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.115754][ T10] [ 1631.117760][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1631.117760][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.117760][ T10] ipv6_find_idev+0x102/0x170 [ 1631.117760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.117760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.117760][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.117760][ T10] netlink_unicast+0x449/0x710 [ 1631.117760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.117760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.117760][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.117760][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.117760][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.117760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.117760][ T10] [ 1631.119301][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1631.119301][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.119301][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.119301][ T10] ipv6_find_idev+0x102/0x170 [ 1631.119301][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.119301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.119301][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.119301][ T10] netlink_unicast+0x449/0x710 [ 1631.119301][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.119301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.119301][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.119301][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.119301][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.119301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.119301][ T10] [ 1631.121032][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1631.121297][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1631.121297][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.121297][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.121297][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.121297][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.121297][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.121297][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.121297][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.121297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.121297][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.121297][ T10] netlink_unicast+0x449/0x710 [ 1631.121297][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.121297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.121297][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.121297][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.121297][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.121297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.121297][ T10] [ 1631.123486][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1631.123486][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.123486][ T10] ipv6_find_idev+0x102/0x170 [ 1631.123486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.123486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.123486][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.123486][ T10] netlink_unicast+0x449/0x710 [ 1631.123486][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.123486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.123486][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.123486][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.123486][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.123486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.123486][ T10] [ 1631.125139][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1631.125139][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.125139][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.125139][ T10] ipv6_find_idev+0x102/0x170 [ 1631.125139][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.125139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.125139][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.125139][ T10] netlink_unicast+0x449/0x710 [ 1631.125139][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.125139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.125139][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.125139][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.125139][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.125139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.125139][ T10] [ 1631.127103][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1631.127435][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1631.127435][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.127435][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.127435][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.127435][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.127435][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.127435][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.127435][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.127435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.127435][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.127435][ T10] netlink_unicast+0x449/0x710 [ 1631.127435][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.127435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.127435][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.127435][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.127435][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.127435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.127435][ T10] [ 1631.129481][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1631.129481][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.129481][ T10] ipv6_find_idev+0x102/0x170 [ 1631.129481][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.129481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.129481][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.129481][ T10] netlink_unicast+0x449/0x710 [ 1631.129481][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.129481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.129481][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.129481][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.129481][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.129481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.129481][ T10] [ 1631.131143][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1631.131143][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.131143][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.131143][ T10] ipv6_find_idev+0x102/0x170 [ 1631.131143][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.131143][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.131143][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.131143][ T10] netlink_unicast+0x449/0x710 [ 1631.131143][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.131143][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.131143][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.131143][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.131143][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.131143][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.131143][ T10] [ 1631.132927][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1631.133205][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1631.133205][ T10] netdev_get_by_index+0x5e/0x80 [ 1631.133205][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1631.133205][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1631.133205][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1631.133205][ T10] ipv6_add_addr+0x411/0x2000 [ 1631.133205][ T10] inet6_addr_add+0x30e/0xa40 [ 1631.133205][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1631.133205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.133205][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.133205][ T10] netlink_unicast+0x449/0x710 [ 1631.133205][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.133205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.133205][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.133205][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.133205][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.133205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.133205][ T10] [ 1631.135190][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1631.135190][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1631.135190][ T10] ipv6_find_idev+0x102/0x170 [ 1631.135190][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.135190][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.135190][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.135190][ T10] netlink_unicast+0x449/0x710 [ 1631.135190][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.135190][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.135190][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.135190][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.135190][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.135190][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.135190][ T10] [ 1631.136902][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1631.136902][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1631.136902][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1631.136902][ T10] ipv6_find_idev+0x102/0x170 [ 1631.136902][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1631.136902][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1631.136902][ T10] netlink_rcv_skb+0x130/0x360 [ 1631.136902][ T10] netlink_unicast+0x449/0x710 [ 1631.136902][ T10] netlink_sendmsg+0x723/0xbe0 [ 1631.136902][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1631.136902][ T10] ___sys_sendmsg+0xee/0x170 [ 1631.136902][ T10] __sys_sendmsg+0xcd/0x170 [ 1631.136902][ T10] do_syscall_64+0xc6/0x1e0 [ 1631.136902][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1631.136902][ T10] [ 1641.163756][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1641.164090][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1641.164090][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.164090][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.164090][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.164090][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.164090][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.164090][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.164090][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.164090][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.164090][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.164090][ T10] netlink_unicast+0x449/0x710 [ 1641.164090][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.164090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.164090][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.164090][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.164090][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.164090][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.164090][ T10] [ 1641.166169][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1641.166169][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.166169][ T10] ipv6_find_idev+0x102/0x170 [ 1641.166169][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.166169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.166169][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.166169][ T10] netlink_unicast+0x449/0x710 [ 1641.166169][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.166169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.166169][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.166169][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.166169][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.166169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.166169][ T10] [ 1641.167774][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1641.167774][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.167774][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.167774][ T10] ipv6_find_idev+0x102/0x170 [ 1641.167774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.167774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.167774][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.167774][ T10] netlink_unicast+0x449/0x710 [ 1641.167774][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.167774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.167774][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.167774][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.167774][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.167774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.167774][ T10] [ 1641.169500][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1641.169785][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1641.169785][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.169785][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.169785][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.169785][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.169785][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.169785][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.169785][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.169785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.169785][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.169785][ T10] netlink_unicast+0x449/0x710 [ 1641.169785][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.169785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.169785][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.169785][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.169785][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.169785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.169785][ T10] [ 1641.171808][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1641.171808][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.171808][ T10] ipv6_find_idev+0x102/0x170 [ 1641.171808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.171808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.171808][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.171808][ T10] netlink_unicast+0x449/0x710 [ 1641.171808][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.171808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.171808][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.171808][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.171808][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.171808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.171808][ T10] [ 1641.173363][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1641.173363][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.173363][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.173363][ T10] ipv6_find_idev+0x102/0x170 [ 1641.173363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.173363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.173363][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.173363][ T10] netlink_unicast+0x449/0x710 [ 1641.173363][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.173363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.173363][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.173363][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.173363][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.173363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.173363][ T10] [ 1641.175275][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1641.175545][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1641.175545][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.175545][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.175545][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.175545][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.175545][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.175545][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.175545][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.175545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.175545][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.175545][ T10] netlink_unicast+0x449/0x710 [ 1641.175545][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.175545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.175545][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.175545][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.175545][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.175545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.175545][ T10] [ 1641.177637][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1641.177637][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.177637][ T10] ipv6_find_idev+0x102/0x170 [ 1641.177637][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.177637][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.177637][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.177637][ T10] netlink_unicast+0x449/0x710 [ 1641.177637][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.177637][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.177637][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.177637][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.177637][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.177637][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.177637][ T10] [ 1641.179184][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1641.179184][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.179184][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.179184][ T10] ipv6_find_idev+0x102/0x170 [ 1641.179184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.179184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.179184][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.179184][ T10] netlink_unicast+0x449/0x710 [ 1641.179184][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.179184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.179184][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.179184][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.179184][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.179184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.179184][ T10] [ 1641.180875][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1641.181136][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1641.181136][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.181136][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.181136][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.181136][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.181136][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.181136][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.181136][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.181136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.181136][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.181136][ T10] netlink_unicast+0x449/0x710 [ 1641.181136][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.181136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.181136][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.181136][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.181136][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.181136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.181136][ T10] [ 1641.183301][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1641.183301][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.183301][ T10] ipv6_find_idev+0x102/0x170 [ 1641.183301][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.183301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.183301][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.183301][ T10] netlink_unicast+0x449/0x710 [ 1641.183301][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.183301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.183301][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.183301][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.183301][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.183301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.183301][ T10] [ 1641.184926][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1641.184926][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.184926][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.184926][ T10] ipv6_find_idev+0x102/0x170 [ 1641.184926][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.184926][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.184926][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.184926][ T10] netlink_unicast+0x449/0x710 [ 1641.184926][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.184926][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.184926][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.184926][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.184926][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.184926][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.184926][ T10] [ 1641.186845][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1641.187189][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1641.187189][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.187189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.187189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.187189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.187189][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.187189][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.187189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.187189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.187189][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.187189][ T10] netlink_unicast+0x449/0x710 [ 1641.187189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.187189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.187189][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.187189][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.187189][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.187189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.187189][ T10] [ 1641.189358][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1641.189358][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.189358][ T10] ipv6_find_idev+0x102/0x170 [ 1641.189358][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.189358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.189358][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.189358][ T10] netlink_unicast+0x449/0x710 [ 1641.189358][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.189358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.189358][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.189358][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.189358][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.189358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.189358][ T10] [ 1641.191111][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1641.191111][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.191111][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.191111][ T10] ipv6_find_idev+0x102/0x170 [ 1641.191111][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.191111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.191111][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.191111][ T10] netlink_unicast+0x449/0x710 [ 1641.191111][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.191111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.191111][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.191111][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.191111][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.191111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.191111][ T10] [ 1641.193014][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1641.193368][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1641.193368][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.193368][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.193368][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.193368][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.193368][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.193368][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.193368][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.193368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.193368][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.193368][ T10] netlink_unicast+0x449/0x710 [ 1641.193368][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.193368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.193368][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.193368][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.193368][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.193368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.193368][ T10] [ 1641.195842][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1641.195842][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.195842][ T10] ipv6_find_idev+0x102/0x170 [ 1641.195842][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.195842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.195842][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.195842][ T10] netlink_unicast+0x449/0x710 [ 1641.195842][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.195842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.195842][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.195842][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.195842][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.195842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.195842][ T10] [ 1641.197557][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1641.197557][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.197557][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.197557][ T10] ipv6_find_idev+0x102/0x170 [ 1641.197557][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.197557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.197557][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.197557][ T10] netlink_unicast+0x449/0x710 [ 1641.197557][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.197557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.197557][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.197557][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.197557][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.197557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.197557][ T10] [ 1641.199659][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1641.199924][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1641.199924][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.199924][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.199924][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.199924][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.199924][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.199924][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.199924][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.199924][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.199924][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.199924][ T10] netlink_unicast+0x449/0x710 [ 1641.199924][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.199924][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.199924][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.199924][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.199924][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.199924][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.199924][ T10] [ 1641.201935][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1641.201935][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.201935][ T10] ipv6_find_idev+0x102/0x170 [ 1641.201935][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.201935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.201935][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.201935][ T10] netlink_unicast+0x449/0x710 [ 1641.201935][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.201935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.201935][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.201935][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.201935][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.201935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.201935][ T10] [ 1641.203508][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1641.203508][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.203508][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.203508][ T10] ipv6_find_idev+0x102/0x170 [ 1641.203508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.203508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.203508][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.203508][ T10] netlink_unicast+0x449/0x710 [ 1641.203508][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.203508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.203508][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.203508][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.203508][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.203508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.203508][ T10] [ 1641.205264][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1641.205534][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1641.205534][ T10] netdev_get_by_index+0x5e/0x80 [ 1641.205534][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1641.205534][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1641.205534][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1641.205534][ T10] ipv6_add_addr+0x411/0x2000 [ 1641.205534][ T10] inet6_addr_add+0x30e/0xa40 [ 1641.205534][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1641.205534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.205534][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.205534][ T10] netlink_unicast+0x449/0x710 [ 1641.205534][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.205534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.205534][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.205534][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.205534][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.205534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.205534][ T10] [ 1641.207629][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1641.207629][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1641.207629][ T10] ipv6_find_idev+0x102/0x170 [ 1641.207629][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.207629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.207629][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.207629][ T10] netlink_unicast+0x449/0x710 [ 1641.207629][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.207629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.207629][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.207629][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.207629][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.207629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.207629][ T10] [ 1641.209385][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1641.209385][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1641.209385][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1641.209385][ T10] ipv6_find_idev+0x102/0x170 [ 1641.209385][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1641.209385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1641.209385][ T10] netlink_rcv_skb+0x130/0x360 [ 1641.209385][ T10] netlink_unicast+0x449/0x710 [ 1641.209385][ T10] netlink_sendmsg+0x723/0xbe0 [ 1641.209385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1641.209385][ T10] ___sys_sendmsg+0xee/0x170 [ 1641.209385][ T10] __sys_sendmsg+0xcd/0x170 [ 1641.209385][ T10] do_syscall_64+0xc6/0x1e0 [ 1641.209385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1641.209385][ T10] [ 1651.371661][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1651.372008][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1651.372008][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.372008][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.372008][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.372008][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.372008][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.372008][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.372008][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.372008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.372008][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.372008][ T10] netlink_unicast+0x449/0x710 [ 1651.372008][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.372008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.372008][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.372008][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.372008][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.372008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.372008][ T10] [ 1651.374071][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1651.374071][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.374071][ T10] ipv6_find_idev+0x102/0x170 [ 1651.374071][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.374071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.374071][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.374071][ T10] netlink_unicast+0x449/0x710 [ 1651.374071][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.374071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.374071][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.374071][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.374071][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.374071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.374071][ T10] [ 1651.375625][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1651.375625][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.375625][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.375625][ T10] ipv6_find_idev+0x102/0x170 [ 1651.375625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.375625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.375625][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.375625][ T10] netlink_unicast+0x449/0x710 [ 1651.375625][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.375625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.375625][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.375625][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.375625][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.375625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.375625][ T10] [ 1651.377324][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1651.377596][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1651.377596][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.377596][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.377596][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.377596][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.377596][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.377596][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.377596][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.377596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.377596][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.377596][ T10] netlink_unicast+0x449/0x710 [ 1651.377596][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.377596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.377596][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.377596][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.377596][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.377596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.377596][ T10] [ 1651.379593][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1651.379593][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.379593][ T10] ipv6_find_idev+0x102/0x170 [ 1651.379593][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.379593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.379593][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.379593][ T10] netlink_unicast+0x449/0x710 [ 1651.379593][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.379593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.379593][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.379593][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.379593][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.379593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.379593][ T10] [ 1651.381139][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1651.381139][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.381139][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.381139][ T10] ipv6_find_idev+0x102/0x170 [ 1651.381139][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.381139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.381139][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.381139][ T10] netlink_unicast+0x449/0x710 [ 1651.381139][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.381139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.381139][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.381139][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.381139][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.381139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.381139][ T10] [ 1651.382886][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1651.383157][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1651.383157][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.383157][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.383157][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.383157][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.383157][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.383157][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.383157][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.383157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.383157][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.383157][ T10] netlink_unicast+0x449/0x710 [ 1651.383157][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.383157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.383157][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.383157][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.383157][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.383157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.383157][ T10] [ 1651.385150][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1651.385150][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.385150][ T10] ipv6_find_idev+0x102/0x170 [ 1651.385150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.385150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.385150][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.385150][ T10] netlink_unicast+0x449/0x710 [ 1651.385150][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.385150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.385150][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.385150][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.385150][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.385150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.385150][ T10] [ 1651.386686][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1651.386686][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.386686][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.386686][ T10] ipv6_find_idev+0x102/0x170 [ 1651.386686][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.386686][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.386686][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.386686][ T10] netlink_unicast+0x449/0x710 [ 1651.386686][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.386686][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.386686][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.386686][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.386686][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.386686][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.386686][ T10] [ 1651.388374][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1651.388645][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1651.388645][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.388645][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.388645][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.388645][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.388645][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.388645][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.388645][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.388645][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.388645][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.388645][ T10] netlink_unicast+0x449/0x710 [ 1651.388645][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.388645][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.388645][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.388645][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.388645][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.388645][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.388645][ T10] [ 1651.390634][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1651.390634][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.390634][ T10] ipv6_find_idev+0x102/0x170 [ 1651.390634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.390634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.390634][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.390634][ T10] netlink_unicast+0x449/0x710 [ 1651.390634][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.390634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.390634][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.390634][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.390634][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.390634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.390634][ T10] [ 1651.392172][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1651.392172][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.392172][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.392172][ T10] ipv6_find_idev+0x102/0x170 [ 1651.392172][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.392172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.392172][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.392172][ T10] netlink_unicast+0x449/0x710 [ 1651.392172][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.392172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.392172][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.392172][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.392172][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.392172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.392172][ T10] [ 1651.394283][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1651.394550][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1651.394550][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.394550][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.394550][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.394550][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.394550][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.394550][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.394550][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.394550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.394550][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.394550][ T10] netlink_unicast+0x449/0x710 [ 1651.394550][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.394550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.394550][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.394550][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.394550][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.394550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.394550][ T10] [ 1651.396536][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1651.396536][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.396536][ T10] ipv6_find_idev+0x102/0x170 [ 1651.396536][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.396536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.396536][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.396536][ T10] netlink_unicast+0x449/0x710 [ 1651.396536][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.396536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.396536][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.396536][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.396536][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.396536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.396536][ T10] [ 1651.398061][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1651.398061][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.398061][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.398061][ T10] ipv6_find_idev+0x102/0x170 [ 1651.398061][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.398061][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.398061][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.398061][ T10] netlink_unicast+0x449/0x710 [ 1651.398061][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.398061][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.398061][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.398061][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.398061][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.398061][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.398061][ T10] [ 1651.399779][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1651.400042][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1651.400042][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.400042][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.400042][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.400042][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.400042][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.400042][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.400042][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.400042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.400042][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.400042][ T10] netlink_unicast+0x449/0x710 [ 1651.400042][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.400042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.400042][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.400042][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.400042][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.400042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.400042][ T10] [ 1651.402051][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1651.402051][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.402051][ T10] ipv6_find_idev+0x102/0x170 [ 1651.402051][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.402051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.402051][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.402051][ T10] netlink_unicast+0x449/0x710 [ 1651.402051][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.402051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.402051][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.402051][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.402051][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.402051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.402051][ T10] [ 1651.403608][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1651.403608][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.403608][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.403608][ T10] ipv6_find_idev+0x102/0x170 [ 1651.403608][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.403608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.403608][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.403608][ T10] netlink_unicast+0x449/0x710 [ 1651.403608][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.403608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.403608][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.403608][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.403608][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.403608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.403608][ T10] [ 1651.405537][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1651.405860][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1651.405860][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.405860][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.405860][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.405860][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.405860][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.405860][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.405860][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.405860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.405860][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.405860][ T10] netlink_unicast+0x449/0x710 [ 1651.405860][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.405860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.405860][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.405860][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.405860][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.405860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.405860][ T10] [ 1651.408039][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1651.408039][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.408039][ T10] ipv6_find_idev+0x102/0x170 [ 1651.408039][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.408039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.408039][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.408039][ T10] netlink_unicast+0x449/0x710 [ 1651.408039][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.408039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.408039][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.408039][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.408039][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.408039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.408039][ T10] [ 1651.409749][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1651.409749][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.409749][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.409749][ T10] ipv6_find_idev+0x102/0x170 [ 1651.409749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.409749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.409749][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.409749][ T10] netlink_unicast+0x449/0x710 [ 1651.409749][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.409749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.409749][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.409749][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.409749][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.409749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.409749][ T10] [ 1651.411805][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1651.412076][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1651.412076][ T10] netdev_get_by_index+0x5e/0x80 [ 1651.412076][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1651.412076][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1651.412076][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1651.412076][ T10] ipv6_add_addr+0x411/0x2000 [ 1651.412076][ T10] inet6_addr_add+0x30e/0xa40 [ 1651.412076][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1651.412076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.412076][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.412076][ T10] netlink_unicast+0x449/0x710 [ 1651.412076][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.412076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.412076][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.412076][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.412076][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.412076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.412076][ T10] [ 1651.414124][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1651.414124][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1651.414124][ T10] ipv6_find_idev+0x102/0x170 [ 1651.414124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.414124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.414124][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.414124][ T10] netlink_unicast+0x449/0x710 [ 1651.414124][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.414124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.414124][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.414124][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.414124][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.414124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.414124][ T10] [ 1651.415774][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1651.415774][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1651.415774][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1651.415774][ T10] ipv6_find_idev+0x102/0x170 [ 1651.415774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1651.415774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1651.415774][ T10] netlink_rcv_skb+0x130/0x360 [ 1651.415774][ T10] netlink_unicast+0x449/0x710 [ 1651.415774][ T10] netlink_sendmsg+0x723/0xbe0 [ 1651.415774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1651.415774][ T10] ___sys_sendmsg+0xee/0x170 [ 1651.415774][ T10] __sys_sendmsg+0xcd/0x170 [ 1651.415774][ T10] do_syscall_64+0xc6/0x1e0 [ 1651.415774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1651.415774][ T10] [ 1661.491669][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1661.491999][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1661.491999][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.491999][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.491999][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.491999][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.491999][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.491999][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.491999][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.491999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.491999][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.491999][ T10] netlink_unicast+0x449/0x710 [ 1661.491999][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.491999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.491999][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.491999][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.491999][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.491999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.491999][ T10] [ 1661.494033][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1661.494033][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.494033][ T10] ipv6_find_idev+0x102/0x170 [ 1661.494033][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.494033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.494033][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.494033][ T10] netlink_unicast+0x449/0x710 [ 1661.494033][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.494033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.494033][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.494033][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.494033][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.494033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.494033][ T10] [ 1661.495619][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1661.495619][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.495619][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.495619][ T10] ipv6_find_idev+0x102/0x170 [ 1661.495619][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.495619][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.495619][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.495619][ T10] netlink_unicast+0x449/0x710 [ 1661.495619][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.495619][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.495619][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.495619][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.495619][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.495619][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.495619][ T10] [ 1661.497367][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1661.497635][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1661.497635][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.497635][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.497635][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.497635][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.497635][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.497635][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.497635][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.497635][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.497635][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.497635][ T10] netlink_unicast+0x449/0x710 [ 1661.497635][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.497635][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.497635][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.497635][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.497635][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.497635][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.497635][ T10] [ 1661.499655][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1661.499655][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.499655][ T10] ipv6_find_idev+0x102/0x170 [ 1661.499655][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.499655][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.499655][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.499655][ T10] netlink_unicast+0x449/0x710 [ 1661.499655][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.499655][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.499655][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.499655][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.499655][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.499655][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.499655][ T10] [ 1661.501231][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1661.501231][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.501231][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.501231][ T10] ipv6_find_idev+0x102/0x170 [ 1661.501231][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.501231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.501231][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.501231][ T10] netlink_unicast+0x449/0x710 [ 1661.501231][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.501231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.501231][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.501231][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.501231][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.501231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.501231][ T10] [ 1661.502942][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1661.503210][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1661.503210][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.503210][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.503210][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.503210][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.503210][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.503210][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.503210][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.503210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.503210][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.503210][ T10] netlink_unicast+0x449/0x710 [ 1661.503210][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.503210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.503210][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.503210][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.503210][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.503210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.503210][ T10] [ 1661.505245][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1661.505245][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.505245][ T10] ipv6_find_idev+0x102/0x170 [ 1661.505245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.505245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.505245][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.505245][ T10] netlink_unicast+0x449/0x710 [ 1661.505245][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.505245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.505245][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.505245][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.505245][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.505245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.505245][ T10] [ 1661.506796][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1661.506796][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.506796][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.506796][ T10] ipv6_find_idev+0x102/0x170 [ 1661.506796][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.506796][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.506796][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.506796][ T10] netlink_unicast+0x449/0x710 [ 1661.506796][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.506796][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.506796][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.506796][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.506796][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.506796][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.506796][ T10] [ 1661.508496][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1661.508771][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1661.508771][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.508771][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.508771][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.508771][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.508771][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.508771][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.508771][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.508771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.508771][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.508771][ T10] netlink_unicast+0x449/0x710 [ 1661.508771][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.508771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.508771][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.508771][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.508771][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.508771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.508771][ T10] [ 1661.510785][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1661.510785][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.510785][ T10] ipv6_find_idev+0x102/0x170 [ 1661.510785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.510785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.510785][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.510785][ T10] netlink_unicast+0x449/0x710 [ 1661.510785][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.510785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.510785][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.510785][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.510785][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.510785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.510785][ T10] [ 1661.512520][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1661.512520][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.512520][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.512520][ T10] ipv6_find_idev+0x102/0x170 [ 1661.512520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.512520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.512520][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.512520][ T10] netlink_unicast+0x449/0x710 [ 1661.512520][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.512520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.512520][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.512520][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.512520][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.512520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.512520][ T10] [ 1661.514687][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1661.514974][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1661.514974][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.514974][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.514974][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.514974][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.514974][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.514974][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.514974][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.514974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.514974][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.514974][ T10] netlink_unicast+0x449/0x710 [ 1661.514974][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.514974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.514974][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.514974][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.514974][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.514974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.514974][ T10] [ 1661.516977][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1661.516977][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.516977][ T10] ipv6_find_idev+0x102/0x170 [ 1661.516977][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.516977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.516977][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.516977][ T10] netlink_unicast+0x449/0x710 [ 1661.516977][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.516977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.516977][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.516977][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.516977][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.516977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.516977][ T10] [ 1661.518510][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1661.518510][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.518510][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.518510][ T10] ipv6_find_idev+0x102/0x170 [ 1661.518510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.518510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.518510][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.518510][ T10] netlink_unicast+0x449/0x710 [ 1661.518510][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.518510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.518510][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.518510][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.518510][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.518510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.518510][ T10] [ 1661.520516][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1661.520842][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1661.520842][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.520842][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.520842][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.520842][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.520842][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.520842][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.520842][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.520842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.520842][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.520842][ T10] netlink_unicast+0x449/0x710 [ 1661.520842][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.520842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.520842][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.520842][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.520842][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.520842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.520842][ T10] [ 1661.522986][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1661.522986][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.522986][ T10] ipv6_find_idev+0x102/0x170 [ 1661.522986][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.522986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.522986][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.522986][ T10] netlink_unicast+0x449/0x710 [ 1661.522986][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.522986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.522986][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.522986][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.522986][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.522986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.522986][ T10] [ 1661.524772][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1661.524772][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.524772][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.524772][ T10] ipv6_find_idev+0x102/0x170 [ 1661.524772][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.524772][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.524772][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.524772][ T10] netlink_unicast+0x449/0x710 [ 1661.524772][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.524772][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.524772][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.524772][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.524772][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.524772][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.524772][ T10] [ 1661.526771][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1661.527054][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1661.527054][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.527054][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.527054][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.527054][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.527054][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.527054][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.527054][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.527054][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.527054][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.527054][ T10] netlink_unicast+0x449/0x710 [ 1661.527054][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.527054][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.527054][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.527054][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.527054][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.527054][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.527054][ T10] [ 1661.529174][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1661.529174][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.529174][ T10] ipv6_find_idev+0x102/0x170 [ 1661.529174][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.529174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.529174][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.529174][ T10] netlink_unicast+0x449/0x710 [ 1661.529174][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.529174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.529174][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.529174][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.529174][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.529174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.529174][ T10] [ 1661.530791][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1661.530791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.530791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.530791][ T10] ipv6_find_idev+0x102/0x170 [ 1661.530791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.530791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.530791][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.530791][ T10] netlink_unicast+0x449/0x710 [ 1661.530791][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.530791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.530791][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.530791][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.530791][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.530791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.530791][ T10] [ 1661.532685][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1661.532965][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1661.532965][ T10] netdev_get_by_index+0x5e/0x80 [ 1661.532965][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1661.532965][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1661.532965][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1661.532965][ T10] ipv6_add_addr+0x411/0x2000 [ 1661.532965][ T10] inet6_addr_add+0x30e/0xa40 [ 1661.532965][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1661.532965][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.532965][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.532965][ T10] netlink_unicast+0x449/0x710 [ 1661.532965][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.532965][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.532965][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.532965][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.532965][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.532965][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.532965][ T10] [ 1661.535260][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1661.535260][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1661.535260][ T10] ipv6_find_idev+0x102/0x170 [ 1661.535260][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.535260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.535260][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.535260][ T10] netlink_unicast+0x449/0x710 [ 1661.535260][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.535260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.535260][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.535260][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.535260][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.535260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.535260][ T10] [ 1661.537022][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1661.537022][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1661.537022][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1661.537022][ T10] ipv6_find_idev+0x102/0x170 [ 1661.537022][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1661.537022][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1661.537022][ T10] netlink_rcv_skb+0x130/0x360 [ 1661.537022][ T10] netlink_unicast+0x449/0x710 [ 1661.537022][ T10] netlink_sendmsg+0x723/0xbe0 [ 1661.537022][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1661.537022][ T10] ___sys_sendmsg+0xee/0x170 [ 1661.537022][ T10] __sys_sendmsg+0xcd/0x170 [ 1661.537022][ T10] do_syscall_64+0xc6/0x1e0 [ 1661.537022][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1661.537022][ T10] [ 1671.683740][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1671.684080][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1671.684080][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.684080][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.684080][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.684080][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.684080][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.684080][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.684080][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.684080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.684080][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.684080][ T10] netlink_unicast+0x449/0x710 [ 1671.684080][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.684080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.684080][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.684080][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.684080][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.684080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.684080][ T10] [ 1671.686160][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1671.686160][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.686160][ T10] ipv6_find_idev+0x102/0x170 [ 1671.686160][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.686160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.686160][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.686160][ T10] netlink_unicast+0x449/0x710 [ 1671.686160][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.686160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.686160][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.686160][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.686160][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.686160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.686160][ T10] [ 1671.687790][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1671.687790][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.687790][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.687790][ T10] ipv6_find_idev+0x102/0x170 [ 1671.687790][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.687790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.687790][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.687790][ T10] netlink_unicast+0x449/0x710 [ 1671.687790][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.687790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.687790][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.687790][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.687790][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.687790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.687790][ T10] [ 1671.689566][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1671.689869][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1671.689869][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.689869][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.689869][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.689869][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.689869][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.689869][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.689869][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.689869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.689869][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.689869][ T10] netlink_unicast+0x449/0x710 [ 1671.689869][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.689869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.689869][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.689869][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.689869][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.689869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.689869][ T10] [ 1671.692012][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1671.692012][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.692012][ T10] ipv6_find_idev+0x102/0x170 [ 1671.692012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.692012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.692012][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.692012][ T10] netlink_unicast+0x449/0x710 [ 1671.692012][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.692012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.692012][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.692012][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.692012][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.692012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.692012][ T10] [ 1671.693636][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1671.693636][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.693636][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.693636][ T10] ipv6_find_idev+0x102/0x170 [ 1671.693636][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.693636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.693636][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.693636][ T10] netlink_unicast+0x449/0x710 [ 1671.693636][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.693636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.693636][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.693636][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.693636][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.693636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.693636][ T10] [ 1671.695513][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1671.695818][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1671.695818][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.695818][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.695818][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.695818][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.695818][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.695818][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.695818][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.695818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.695818][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.695818][ T10] netlink_unicast+0x449/0x710 [ 1671.695818][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.695818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.695818][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.695818][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.695818][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.695818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.695818][ T10] [ 1671.697961][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1671.697961][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.697961][ T10] ipv6_find_idev+0x102/0x170 [ 1671.697961][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.697961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.697961][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.697961][ T10] netlink_unicast+0x449/0x710 [ 1671.697961][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.697961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.697961][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.697961][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.697961][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.697961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.697961][ T10] [ 1671.699582][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1671.699582][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.699582][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.699582][ T10] ipv6_find_idev+0x102/0x170 [ 1671.699582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.699582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.699582][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.699582][ T10] netlink_unicast+0x449/0x710 [ 1671.699582][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.699582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.699582][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.699582][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.699582][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.699582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.699582][ T10] [ 1671.701648][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1671.701924][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1671.701924][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.701924][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.701924][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.701924][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.701924][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.701924][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.701924][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.701924][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.701924][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.701924][ T10] netlink_unicast+0x449/0x710 [ 1671.701924][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.701924][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.701924][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.701924][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.701924][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.701924][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.701924][ T10] [ 1671.704182][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1671.704182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.704182][ T10] ipv6_find_idev+0x102/0x170 [ 1671.704182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.704182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.704182][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.704182][ T10] netlink_unicast+0x449/0x710 [ 1671.704182][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.704182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.704182][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.704182][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.704182][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.704182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.704182][ T10] [ 1671.705764][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1671.705764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.705764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.705764][ T10] ipv6_find_idev+0x102/0x170 [ 1671.705764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.705764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.705764][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.705764][ T10] netlink_unicast+0x449/0x710 [ 1671.705764][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.705764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.705764][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.705764][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.705764][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.705764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.705764][ T10] [ 1671.707911][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1671.708181][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1671.708181][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.708181][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.708181][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.708181][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.708181][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.708181][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.708181][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.708181][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.708181][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.708181][ T10] netlink_unicast+0x449/0x710 [ 1671.708181][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.708181][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.708181][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.708181][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.708181][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.708181][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.708181][ T10] [ 1671.710251][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1671.710251][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.710251][ T10] ipv6_find_idev+0x102/0x170 [ 1671.710251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.710251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.710251][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.710251][ T10] netlink_unicast+0x449/0x710 [ 1671.710251][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.710251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.710251][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.710251][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.710251][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.710251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.710251][ T10] [ 1671.711899][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1671.711899][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.711899][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.711899][ T10] ipv6_find_idev+0x102/0x170 [ 1671.711899][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.711899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.711899][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.711899][ T10] netlink_unicast+0x449/0x710 [ 1671.711899][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.711899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.711899][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.711899][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.711899][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.711899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.711899][ T10] [ 1671.713937][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1671.714222][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1671.714222][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.714222][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.714222][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.714222][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.714222][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.714222][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.714222][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.714222][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.714222][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.714222][ T10] netlink_unicast+0x449/0x710 [ 1671.714222][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.714222][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.714222][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.714222][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.714222][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.714222][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.714222][ T10] [ 1671.716467][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1671.716467][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.716467][ T10] ipv6_find_idev+0x102/0x170 [ 1671.716467][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.716467][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.716467][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.716467][ T10] netlink_unicast+0x449/0x710 [ 1671.716467][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.716467][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.716467][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.716467][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.716467][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.716467][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.716467][ T10] [ 1671.718104][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1671.718104][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.718104][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.718104][ T10] ipv6_find_idev+0x102/0x170 [ 1671.718104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.718104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.718104][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.718104][ T10] netlink_unicast+0x449/0x710 [ 1671.718104][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.718104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.718104][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.718104][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.718104][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.718104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.718104][ T10] [ 1671.720095][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1671.720376][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1671.720376][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.720376][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.720376][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.720376][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.720376][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.720376][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.720376][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.720376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.720376][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.720376][ T10] netlink_unicast+0x449/0x710 [ 1671.720376][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.720376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.720376][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.720376][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.720376][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.720376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.720376][ T10] [ 1671.722790][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1671.722790][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.722790][ T10] ipv6_find_idev+0x102/0x170 [ 1671.722790][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.722790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.722790][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.722790][ T10] netlink_unicast+0x449/0x710 [ 1671.722790][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.722790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.722790][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.722790][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.722790][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.722790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.722790][ T10] [ 1671.724643][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1671.724643][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.724643][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.724643][ T10] ipv6_find_idev+0x102/0x170 [ 1671.724643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.724643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.724643][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.724643][ T10] netlink_unicast+0x449/0x710 [ 1671.724643][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.724643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.724643][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.724643][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.724643][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.724643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.724643][ T10] [ 1671.726745][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1671.727020][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1671.727020][ T10] netdev_get_by_index+0x5e/0x80 [ 1671.727020][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1671.727020][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1671.727020][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1671.727020][ T10] ipv6_add_addr+0x411/0x2000 [ 1671.727020][ T10] inet6_addr_add+0x30e/0xa40 [ 1671.727020][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1671.727020][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.727020][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.727020][ T10] netlink_unicast+0x449/0x710 [ 1671.727020][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.727020][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.727020][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.727020][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.727020][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.727020][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.727020][ T10] [ 1671.729267][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1671.729267][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1671.729267][ T10] ipv6_find_idev+0x102/0x170 [ 1671.729267][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.729267][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.729267][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.729267][ T10] netlink_unicast+0x449/0x710 [ 1671.729267][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.729267][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.729267][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.729267][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.729267][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.729267][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.729267][ T10] [ 1671.730877][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1671.730877][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1671.730877][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1671.730877][ T10] ipv6_find_idev+0x102/0x170 [ 1671.730877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1671.730877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1671.730877][ T10] netlink_rcv_skb+0x130/0x360 [ 1671.730877][ T10] netlink_unicast+0x449/0x710 [ 1671.730877][ T10] netlink_sendmsg+0x723/0xbe0 [ 1671.730877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1671.730877][ T10] ___sys_sendmsg+0xee/0x170 [ 1671.730877][ T10] __sys_sendmsg+0xcd/0x170 [ 1671.730877][ T10] do_syscall_64+0xc6/0x1e0 [ 1671.730877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1671.730877][ T10] [ 1681.797763][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1681.798106][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1681.798106][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.798106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.798106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.798106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.798106][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.798106][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.798106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.798106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.798106][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.798106][ T10] netlink_unicast+0x449/0x710 [ 1681.798106][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.798106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.798106][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.798106][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.798106][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.798106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.798106][ T10] [ 1681.800234][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1681.800234][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.800234][ T10] ipv6_find_idev+0x102/0x170 [ 1681.800234][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.800234][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.800234][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.800234][ T10] netlink_unicast+0x449/0x710 [ 1681.800234][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.800234][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.800234][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.800234][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.800234][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.800234][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.800234][ T10] [ 1681.801829][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1681.801829][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.801829][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.801829][ T10] ipv6_find_idev+0x102/0x170 [ 1681.801829][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.801829][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.801829][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.801829][ T10] netlink_unicast+0x449/0x710 [ 1681.801829][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.801829][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.801829][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.801829][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.801829][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.801829][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.801829][ T10] [ 1681.803582][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1681.803875][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1681.803875][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.803875][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.803875][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.803875][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.803875][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.803875][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.803875][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.803875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.803875][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.803875][ T10] netlink_unicast+0x449/0x710 [ 1681.803875][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.803875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.803875][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.803875][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.803875][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.803875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.803875][ T10] [ 1681.805940][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1681.805940][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.805940][ T10] ipv6_find_idev+0x102/0x170 [ 1681.805940][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.805940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.805940][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.805940][ T10] netlink_unicast+0x449/0x710 [ 1681.805940][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.805940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.805940][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.805940][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.805940][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.805940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.805940][ T10] [ 1681.807522][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1681.807522][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.807522][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.807522][ T10] ipv6_find_idev+0x102/0x170 [ 1681.807522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.807522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.807522][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.807522][ T10] netlink_unicast+0x449/0x710 [ 1681.807522][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.807522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.807522][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.807522][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.807522][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.807522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.807522][ T10] [ 1681.809220][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1681.809488][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1681.809488][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.809488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.809488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.809488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.809488][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.809488][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.809488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.809488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.809488][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.809488][ T10] netlink_unicast+0x449/0x710 [ 1681.809488][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.809488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.809488][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.809488][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.809488][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.809488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.809488][ T10] [ 1681.811818][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1681.811818][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.811818][ T10] ipv6_find_idev+0x102/0x170 [ 1681.811818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.811818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.811818][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.811818][ T10] netlink_unicast+0x449/0x710 [ 1681.811818][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.811818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.811818][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.811818][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.811818][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.811818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.811818][ T10] [ 1681.813533][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1681.813533][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.813533][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.813533][ T10] ipv6_find_idev+0x102/0x170 [ 1681.813533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.813533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.813533][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.813533][ T10] netlink_unicast+0x449/0x710 [ 1681.813533][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.813533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.813533][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.813533][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.813533][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.813533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.813533][ T10] [ 1681.815317][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1681.816168][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1681.816168][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.816168][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.816168][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.816168][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.816168][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.816168][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.816168][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.816168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.816168][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.816168][ T10] netlink_unicast+0x449/0x710 [ 1681.816168][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.816168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.816168][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.816168][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.816168][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.816168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.816168][ T10] [ 1681.818191][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1681.818191][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.818191][ T10] ipv6_find_idev+0x102/0x170 [ 1681.818191][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.818191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.818191][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.818191][ T10] netlink_unicast+0x449/0x710 [ 1681.818191][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.818191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.818191][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.818191][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.818191][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.818191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.818191][ T10] [ 1681.819742][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1681.819742][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.819742][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.819742][ T10] ipv6_find_idev+0x102/0x170 [ 1681.819742][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.819742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.819742][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.819742][ T10] netlink_unicast+0x449/0x710 [ 1681.819742][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.819742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.819742][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.819742][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.819742][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.819742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.819742][ T10] [ 1681.821492][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1681.821815][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1681.821815][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.821815][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.821815][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.821815][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.821815][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.821815][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.821815][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.821815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.821815][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.821815][ T10] netlink_unicast+0x449/0x710 [ 1681.821815][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.821815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.821815][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.821815][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.821815][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.821815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.821815][ T10] [ 1681.823840][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1681.823840][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.823840][ T10] ipv6_find_idev+0x102/0x170 [ 1681.823840][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.823840][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.823840][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.823840][ T10] netlink_unicast+0x449/0x710 [ 1681.823840][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.823840][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.823840][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.823840][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.823840][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.823840][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.823840][ T10] [ 1681.825401][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1681.825401][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.825401][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.825401][ T10] ipv6_find_idev+0x102/0x170 [ 1681.825401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.825401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.825401][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.825401][ T10] netlink_unicast+0x449/0x710 [ 1681.825401][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.825401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.825401][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.825401][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.825401][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.825401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.825401][ T10] [ 1681.827195][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1681.827462][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1681.827462][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.827462][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.827462][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.827462][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.827462][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.827462][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.827462][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.827462][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.827462][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.827462][ T10] netlink_unicast+0x449/0x710 [ 1681.827462][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.827462][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.827462][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.827462][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.827462][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.827462][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.827462][ T10] [ 1681.829711][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1681.829711][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.829711][ T10] ipv6_find_idev+0x102/0x170 [ 1681.829711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.829711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.829711][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.829711][ T10] netlink_unicast+0x449/0x710 [ 1681.829711][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.829711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.829711][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.829711][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.829711][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.829711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.829711][ T10] [ 1681.831416][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1681.831416][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.831416][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.831416][ T10] ipv6_find_idev+0x102/0x170 [ 1681.831416][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.831416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.831416][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.831416][ T10] netlink_unicast+0x449/0x710 [ 1681.831416][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.831416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.831416][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.831416][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.831416][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.831416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.831416][ T10] [ 1681.833435][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1681.833753][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1681.833753][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.833753][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.833753][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.833753][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.833753][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.833753][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.833753][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.833753][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.833753][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.833753][ T10] netlink_unicast+0x449/0x710 [ 1681.833753][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.833753][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.833753][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.833753][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.833753][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.833753][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.833753][ T10] [ 1681.835838][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1681.835838][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.835838][ T10] ipv6_find_idev+0x102/0x170 [ 1681.835838][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.835838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.835838][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.835838][ T10] netlink_unicast+0x449/0x710 [ 1681.835838][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.835838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.835838][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.835838][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.835838][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.835838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.835838][ T10] [ 1681.837397][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1681.837397][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.837397][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.837397][ T10] ipv6_find_idev+0x102/0x170 [ 1681.837397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.837397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.837397][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.837397][ T10] netlink_unicast+0x449/0x710 [ 1681.837397][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.837397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.837397][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.837397][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.837397][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.837397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.837397][ T10] [ 1681.839144][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1681.839416][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1681.839416][ T10] netdev_get_by_index+0x5e/0x80 [ 1681.839416][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1681.839416][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1681.839416][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1681.839416][ T10] ipv6_add_addr+0x411/0x2000 [ 1681.839416][ T10] inet6_addr_add+0x30e/0xa40 [ 1681.839416][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1681.839416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.839416][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.839416][ T10] netlink_unicast+0x449/0x710 [ 1681.839416][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.839416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.839416][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.839416][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.839416][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.839416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.839416][ T10] [ 1681.841450][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1681.841450][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1681.841450][ T10] ipv6_find_idev+0x102/0x170 [ 1681.841450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.841450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.841450][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.841450][ T10] netlink_unicast+0x449/0x710 [ 1681.841450][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.841450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.841450][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.841450][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.841450][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.841450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.841450][ T10] [ 1681.843171][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1681.843171][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1681.843171][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1681.843171][ T10] ipv6_find_idev+0x102/0x170 [ 1681.843171][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1681.843171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1681.843171][ T10] netlink_rcv_skb+0x130/0x360 [ 1681.843171][ T10] netlink_unicast+0x449/0x710 [ 1681.843171][ T10] netlink_sendmsg+0x723/0xbe0 [ 1681.843171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1681.843171][ T10] ___sys_sendmsg+0xee/0x170 [ 1681.843171][ T10] __sys_sendmsg+0xcd/0x170 [ 1681.843171][ T10] do_syscall_64+0xc6/0x1e0 [ 1681.843171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1681.843171][ T10] [ 1691.995674][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1691.996011][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1691.996011][ T10] netdev_get_by_index+0x5e/0x80 [ 1691.996011][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1691.996011][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1691.996011][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1691.996011][ T10] ipv6_add_addr+0x411/0x2000 [ 1691.996011][ T10] inet6_addr_add+0x30e/0xa40 [ 1691.996011][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1691.996011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1691.996011][ T10] netlink_rcv_skb+0x130/0x360 [ 1691.996011][ T10] netlink_unicast+0x449/0x710 [ 1691.996011][ T10] netlink_sendmsg+0x723/0xbe0 [ 1691.996011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1691.996011][ T10] ___sys_sendmsg+0xee/0x170 [ 1691.996011][ T10] __sys_sendmsg+0xcd/0x170 [ 1691.996011][ T10] do_syscall_64+0xc6/0x1e0 [ 1691.996011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1691.996011][ T10] [ 1691.998093][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1691.998093][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1691.998093][ T10] ipv6_find_idev+0x102/0x170 [ 1691.998093][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1691.998093][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1691.998093][ T10] netlink_rcv_skb+0x130/0x360 [ 1691.998093][ T10] netlink_unicast+0x449/0x710 [ 1691.998093][ T10] netlink_sendmsg+0x723/0xbe0 [ 1691.998093][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1691.998093][ T10] ___sys_sendmsg+0xee/0x170 [ 1691.998093][ T10] __sys_sendmsg+0xcd/0x170 [ 1691.998093][ T10] do_syscall_64+0xc6/0x1e0 [ 1691.998093][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1691.998093][ T10] [ 1691.999653][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1691.999653][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1691.999653][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1691.999653][ T10] ipv6_find_idev+0x102/0x170 [ 1691.999653][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1691.999653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1691.999653][ T10] netlink_rcv_skb+0x130/0x360 [ 1691.999653][ T10] netlink_unicast+0x449/0x710 [ 1691.999653][ T10] netlink_sendmsg+0x723/0xbe0 [ 1691.999653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1691.999653][ T10] ___sys_sendmsg+0xee/0x170 [ 1691.999653][ T10] __sys_sendmsg+0xcd/0x170 [ 1691.999653][ T10] do_syscall_64+0xc6/0x1e0 [ 1691.999653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1691.999653][ T10] [ 1692.001367][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1692.001646][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1692.001646][ T10] netdev_get_by_index+0x5e/0x80 [ 1692.001646][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1692.001646][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1692.001646][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1692.001646][ T10] ipv6_add_addr+0x411/0x2000 [ 1692.001646][ T10] inet6_addr_add+0x30e/0xa40 [ 1692.001646][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1692.001646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.001646][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.001646][ T10] netlink_unicast+0x449/0x710 [ 1692.001646][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.001646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.001646][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.001646][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.001646][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.001646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.001646][ T10] [ 1692.003659][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1692.003659][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1692.003659][ T10] ipv6_find_idev+0x102/0x170 [ 1692.003659][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.003659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.003659][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.003659][ T10] netlink_unicast+0x449/0x710 [ 1692.003659][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.003659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.003659][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.003659][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.003659][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.003659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.003659][ T10] [ 1692.005215][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1692.005215][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1692.005215][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1692.005215][ T10] ipv6_find_idev+0x102/0x170 [ 1692.005215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.005215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.005215][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.005215][ T10] netlink_unicast+0x449/0x710 [ 1692.005215][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.005215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.005215][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.005215][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.005215][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.005215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.005215][ T10] [ 1692.006936][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1692.007210][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1692.007210][ T10] netdev_get_by_index+0x5e/0x80 [ 1692.007210][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1692.007210][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1692.007210][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1692.007210][ T10] ipv6_add_addr+0x411/0x2000 [ 1692.007210][ T10] inet6_addr_add+0x30e/0xa40 [ 1692.007210][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1692.007210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.007210][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.007210][ T10] netlink_unicast+0x449/0x710 [ 1692.007210][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.007210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.007210][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.007210][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.007210][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.007210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.007210][ T10] [ 1692.009235][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1692.009235][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1692.009235][ T10] ipv6_find_idev+0x102/0x170 [ 1692.009235][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.009235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.009235][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.009235][ T10] netlink_unicast+0x449/0x710 [ 1692.009235][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.009235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.009235][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.009235][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.009235][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.009235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.009235][ T10] [ 1692.010953][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1692.010953][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1692.010953][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1692.010953][ T10] ipv6_find_idev+0x102/0x170 [ 1692.010953][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.010953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.010953][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.010953][ T10] netlink_unicast+0x449/0x710 [ 1692.010953][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.010953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.010953][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.010953][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.010953][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.010953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.010953][ T10] [ 1692.012651][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1692.012914][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1692.012914][ T10] netdev_get_by_index+0x5e/0x80 [ 1692.012914][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1692.012914][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1692.012914][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1692.012914][ T10] ipv6_add_addr+0x411/0x2000 [ 1692.012914][ T10] inet6_addr_add+0x30e/0xa40 [ 1692.012914][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1692.012914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.012914][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.012914][ T10] netlink_unicast+0x449/0x710 [ 1692.012914][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.012914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.012914][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.012914][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.012914][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.012914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.012914][ T10] [ 1692.015064][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1692.015064][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1692.015064][ T10] ipv6_find_idev+0x102/0x170 [ 1692.015064][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.015064][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.015064][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.015064][ T10] netlink_unicast+0x449/0x710 [ 1692.015064][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.015064][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.015064][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.015064][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.015064][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.015064][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.015064][ T10] [ 1692.016750][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1692.016750][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1692.016750][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1692.016750][ T10] ipv6_find_idev+0x102/0x170 [ 1692.016750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.016750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.016750][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.016750][ T10] netlink_unicast+0x449/0x710 [ 1692.016750][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.016750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.016750][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.016750][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.016750][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.016750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.016750][ T10] [ 1692.018702][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1692.018974][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1692.018974][ T10] netdev_get_by_index+0x5e/0x80 [ 1692.018974][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1692.018974][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1692.018974][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1692.018974][ T10] ipv6_add_addr+0x411/0x2000 [ 1692.018974][ T10] inet6_addr_add+0x30e/0xa40 [ 1692.018974][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1692.018974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.018974][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.018974][ T10] netlink_unicast+0x449/0x710 [ 1692.018974][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.018974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.018974][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.018974][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.018974][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.018974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.018974][ T10] [ 1692.021052][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1692.021052][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1692.021052][ T10] ipv6_find_idev+0x102/0x170 [ 1692.021052][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.021052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.021052][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.021052][ T10] netlink_unicast+0x449/0x710 [ 1692.021052][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.021052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.021052][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.021052][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.021052][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.021052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.021052][ T10] [ 1692.022614][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1692.022614][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1692.022614][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1692.022614][ T10] ipv6_find_idev+0x102/0x170 [ 1692.022614][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.022614][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.022614][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.022614][ T10] netlink_unicast+0x449/0x710 [ 1692.022614][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.022614][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.022614][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.022614][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.022614][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.022614][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.022614][ T10] [ 1692.024400][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1692.024672][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1692.024672][ T10] netdev_get_by_index+0x5e/0x80 [ 1692.024672][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1692.024672][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1692.024672][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1692.024672][ T10] ipv6_add_addr+0x411/0x2000 [ 1692.024672][ T10] inet6_addr_add+0x30e/0xa40 [ 1692.024672][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1692.024672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.024672][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.024672][ T10] netlink_unicast+0x449/0x710 [ 1692.024672][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.024672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.024672][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.024672][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.024672][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.024672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.024672][ T10] [ 1692.026814][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1692.026814][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1692.026814][ T10] ipv6_find_idev+0x102/0x170 [ 1692.026814][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.026814][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.026814][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.026814][ T10] netlink_unicast+0x449/0x710 [ 1692.026814][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.026814][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.026814][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.026814][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.026814][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.026814][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.026814][ T10] [ 1692.028559][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1692.028559][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1692.028559][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1692.028559][ T10] ipv6_find_idev+0x102/0x170 [ 1692.028559][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.028559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.028559][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.028559][ T10] netlink_unicast+0x449/0x710 [ 1692.028559][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.028559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.028559][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.028559][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.028559][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.028559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.028559][ T10] [ 1692.030506][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1692.030839][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1692.030839][ T10] netdev_get_by_index+0x5e/0x80 [ 1692.030839][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1692.030839][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1692.030839][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1692.030839][ T10] ipv6_add_addr+0x411/0x2000 [ 1692.030839][ T10] inet6_addr_add+0x30e/0xa40 [ 1692.030839][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1692.030839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.030839][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.030839][ T10] netlink_unicast+0x449/0x710 [ 1692.030839][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.030839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.030839][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.030839][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.030839][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.030839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.030839][ T10] [ 1692.032858][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1692.032858][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1692.032858][ T10] ipv6_find_idev+0x102/0x170 [ 1692.032858][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.032858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.032858][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.032858][ T10] netlink_unicast+0x449/0x710 [ 1692.032858][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.032858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.032858][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.032858][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.032858][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.032858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.032858][ T10] [ 1692.034497][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1692.034497][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1692.034497][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1692.034497][ T10] ipv6_find_idev+0x102/0x170 [ 1692.034497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.034497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.034497][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.034497][ T10] netlink_unicast+0x449/0x710 [ 1692.034497][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.034497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.034497][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.034497][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.034497][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.034497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.034497][ T10] [ 1692.036440][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1692.036763][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1692.036763][ T10] netdev_get_by_index+0x5e/0x80 [ 1692.036763][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1692.036763][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1692.036763][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1692.036763][ T10] ipv6_add_addr+0x411/0x2000 [ 1692.036763][ T10] inet6_addr_add+0x30e/0xa40 [ 1692.036763][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1692.036763][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.036763][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.036763][ T10] netlink_unicast+0x449/0x710 [ 1692.036763][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.036763][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.036763][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.036763][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.036763][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.036763][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.036763][ T10] [ 1692.038987][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1692.038987][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1692.038987][ T10] ipv6_find_idev+0x102/0x170 [ 1692.038987][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.038987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.038987][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.038987][ T10] netlink_unicast+0x449/0x710 [ 1692.038987][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.038987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.038987][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.038987][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.038987][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.038987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.038987][ T10] [ 1692.040823][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1692.040823][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1692.040823][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1692.040823][ T10] ipv6_find_idev+0x102/0x170 [ 1692.040823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1692.040823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1692.040823][ T10] netlink_rcv_skb+0x130/0x360 [ 1692.040823][ T10] netlink_unicast+0x449/0x710 [ 1692.040823][ T10] netlink_sendmsg+0x723/0xbe0 [ 1692.040823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1692.040823][ T10] ___sys_sendmsg+0xee/0x170 [ 1692.040823][ T10] __sys_sendmsg+0xcd/0x170 [ 1692.040823][ T10] do_syscall_64+0xc6/0x1e0 [ 1692.040823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1692.040823][ T10] [ 1702.123748][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1702.124083][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1702.124083][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.124083][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.124083][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.124083][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.124083][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.124083][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.124083][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.124083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.124083][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.124083][ T10] netlink_unicast+0x449/0x710 [ 1702.124083][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.124083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.124083][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.124083][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.124083][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.124083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.124083][ T10] [ 1702.126134][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1702.126134][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.126134][ T10] ipv6_find_idev+0x102/0x170 [ 1702.126134][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.126134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.126134][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.126134][ T10] netlink_unicast+0x449/0x710 [ 1702.126134][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.126134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.126134][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.126134][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.126134][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.126134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.126134][ T10] [ 1702.127686][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1702.127686][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.127686][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.127686][ T10] ipv6_find_idev+0x102/0x170 [ 1702.127686][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.127686][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.127686][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.127686][ T10] netlink_unicast+0x449/0x710 [ 1702.127686][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.127686][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.127686][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.127686][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.127686][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.127686][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.127686][ T10] [ 1702.129377][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1702.129661][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1702.129661][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.129661][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.129661][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.129661][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.129661][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.129661][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.129661][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.129661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.129661][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.129661][ T10] netlink_unicast+0x449/0x710 [ 1702.129661][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.129661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.129661][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.129661][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.129661][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.129661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.129661][ T10] [ 1702.131739][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1702.131739][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.131739][ T10] ipv6_find_idev+0x102/0x170 [ 1702.131739][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.131739][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.131739][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.131739][ T10] netlink_unicast+0x449/0x710 [ 1702.131739][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.131739][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.131739][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.131739][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.131739][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.131739][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.131739][ T10] [ 1702.133348][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1702.133348][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.133348][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.133348][ T10] ipv6_find_idev+0x102/0x170 [ 1702.133348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.133348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.133348][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.133348][ T10] netlink_unicast+0x449/0x710 [ 1702.133348][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.133348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.133348][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.133348][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.133348][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.133348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.133348][ T10] [ 1702.135099][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1702.135382][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1702.135382][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.135382][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.135382][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.135382][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.135382][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.135382][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.135382][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.135382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.135382][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.135382][ T10] netlink_unicast+0x449/0x710 [ 1702.135382][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.135382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.135382][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.135382][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.135382][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.135382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.135382][ T10] [ 1702.137452][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1702.137452][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.137452][ T10] ipv6_find_idev+0x102/0x170 [ 1702.137452][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.137452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.137452][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.137452][ T10] netlink_unicast+0x449/0x710 [ 1702.137452][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.137452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.137452][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.137452][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.137452][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.137452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.137452][ T10] [ 1702.139077][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1702.139077][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.139077][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.139077][ T10] ipv6_find_idev+0x102/0x170 [ 1702.139077][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.139077][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.139077][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.139077][ T10] netlink_unicast+0x449/0x710 [ 1702.139077][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.139077][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.139077][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.139077][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.139077][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.139077][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.139077][ T10] [ 1702.140833][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1702.141096][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1702.141096][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.141096][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.141096][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.141096][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.141096][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.141096][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.141096][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.141096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.141096][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.141096][ T10] netlink_unicast+0x449/0x710 [ 1702.141096][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.141096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.141096][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.141096][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.141096][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.141096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.141096][ T10] [ 1702.143201][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1702.143201][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.143201][ T10] ipv6_find_idev+0x102/0x170 [ 1702.143201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.143201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.143201][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.143201][ T10] netlink_unicast+0x449/0x710 [ 1702.143201][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.143201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.143201][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.143201][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.143201][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.143201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.143201][ T10] [ 1702.144815][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1702.144815][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.144815][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.144815][ T10] ipv6_find_idev+0x102/0x170 [ 1702.144815][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.144815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.144815][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.144815][ T10] netlink_unicast+0x449/0x710 [ 1702.144815][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.144815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.144815][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.144815][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.144815][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.144815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.144815][ T10] [ 1702.146653][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1702.146983][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1702.146983][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.146983][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.146983][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.146983][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.146983][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.146983][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.146983][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.146983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.146983][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.146983][ T10] netlink_unicast+0x449/0x710 [ 1702.146983][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.146983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.146983][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.146983][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.146983][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.146983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.146983][ T10] [ 1702.149135][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1702.149135][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.149135][ T10] ipv6_find_idev+0x102/0x170 [ 1702.149135][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.149135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.149135][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.149135][ T10] netlink_unicast+0x449/0x710 [ 1702.149135][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.149135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.149135][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.149135][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.149135][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.149135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.149135][ T10] [ 1702.150760][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1702.150760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.150760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.150760][ T10] ipv6_find_idev+0x102/0x170 [ 1702.150760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.150760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.150760][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.150760][ T10] netlink_unicast+0x449/0x710 [ 1702.150760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.150760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.150760][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.150760][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.150760][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.150760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.150760][ T10] [ 1702.153040][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1702.153317][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1702.153317][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.153317][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.153317][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.153317][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.153317][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.153317][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.153317][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.153317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.153317][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.153317][ T10] netlink_unicast+0x449/0x710 [ 1702.153317][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.153317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.153317][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.153317][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.153317][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.153317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.153317][ T10] [ 1702.155406][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1702.155406][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.155406][ T10] ipv6_find_idev+0x102/0x170 [ 1702.155406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.155406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.155406][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.155406][ T10] netlink_unicast+0x449/0x710 [ 1702.155406][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.155406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.155406][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.155406][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.155406][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.155406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.155406][ T10] [ 1702.157178][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1702.157178][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.157178][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.157178][ T10] ipv6_find_idev+0x102/0x170 [ 1702.157178][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.157178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.157178][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.157178][ T10] netlink_unicast+0x449/0x710 [ 1702.157178][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.157178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.157178][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.157178][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.157178][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.157178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.157178][ T10] [ 1702.159267][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1702.159611][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1702.159611][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.159611][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.159611][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.159611][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.159611][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.159611][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.159611][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.159611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.159611][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.159611][ T10] netlink_unicast+0x449/0x710 [ 1702.159611][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.159611][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.159611][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.159611][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.159611][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.159611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.159611][ T10] [ 1702.161765][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1702.161765][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.161765][ T10] ipv6_find_idev+0x102/0x170 [ 1702.161765][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.161765][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.161765][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.161765][ T10] netlink_unicast+0x449/0x710 [ 1702.161765][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.161765][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.161765][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.161765][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.161765][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.161765][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.161765][ T10] [ 1702.163460][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1702.163460][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.163460][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.163460][ T10] ipv6_find_idev+0x102/0x170 [ 1702.163460][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.163460][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.163460][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.163460][ T10] netlink_unicast+0x449/0x710 [ 1702.163460][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.163460][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.163460][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.163460][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.163460][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.163460][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.163460][ T10] [ 1702.165440][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1702.165770][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1702.165770][ T10] netdev_get_by_index+0x5e/0x80 [ 1702.165770][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1702.165770][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1702.165770][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1702.165770][ T10] ipv6_add_addr+0x411/0x2000 [ 1702.165770][ T10] inet6_addr_add+0x30e/0xa40 [ 1702.165770][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1702.165770][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.165770][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.165770][ T10] netlink_unicast+0x449/0x710 [ 1702.165770][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.165770][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.165770][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.165770][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.165770][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.165770][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.165770][ T10] [ 1702.168032][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1702.168032][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1702.168032][ T10] ipv6_find_idev+0x102/0x170 [ 1702.168032][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.168032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.168032][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.168032][ T10] netlink_unicast+0x449/0x710 [ 1702.168032][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.168032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.168032][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.168032][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.168032][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.168032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.168032][ T10] [ 1702.169782][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1702.169782][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1702.169782][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1702.169782][ T10] ipv6_find_idev+0x102/0x170 [ 1702.169782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1702.169782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1702.169782][ T10] netlink_rcv_skb+0x130/0x360 [ 1702.169782][ T10] netlink_unicast+0x449/0x710 [ 1702.169782][ T10] netlink_sendmsg+0x723/0xbe0 [ 1702.169782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1702.169782][ T10] ___sys_sendmsg+0xee/0x170 [ 1702.169782][ T10] __sys_sendmsg+0xcd/0x170 [ 1702.169782][ T10] do_syscall_64+0xc6/0x1e0 [ 1702.169782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1702.169782][ T10] [ 1712.291837][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1712.292347][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1712.292347][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.292347][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.292347][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.292347][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.292347][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.292347][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.292347][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.292347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.292347][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.292347][ T10] netlink_unicast+0x449/0x710 [ 1712.292347][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.292347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.292347][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.292347][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.292347][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.292347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.292347][ T10] [ 1712.294715][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1712.294715][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.294715][ T10] ipv6_find_idev+0x102/0x170 [ 1712.294715][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.294715][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.294715][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.294715][ T10] netlink_unicast+0x449/0x710 [ 1712.294715][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.294715][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.294715][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.294715][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.294715][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.294715][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.294715][ T10] [ 1712.296458][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1712.296458][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.296458][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.296458][ T10] ipv6_find_idev+0x102/0x170 [ 1712.296458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.296458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.296458][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.296458][ T10] netlink_unicast+0x449/0x710 [ 1712.296458][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.296458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.296458][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.296458][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.296458][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.296458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.296458][ T10] [ 1712.298402][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1712.298730][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1712.298730][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.298730][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.298730][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.298730][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.298730][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.298730][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.298730][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.298730][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.298730][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.298730][ T10] netlink_unicast+0x449/0x710 [ 1712.298730][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.298730][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.298730][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.298730][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.298730][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.298730][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.298730][ T10] [ 1712.300998][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1712.300998][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.300998][ T10] ipv6_find_idev+0x102/0x170 [ 1712.300998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.300998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.300998][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.300998][ T10] netlink_unicast+0x449/0x710 [ 1712.300998][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.300998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.300998][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.300998][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.300998][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.300998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.300998][ T10] [ 1712.302739][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1712.302739][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.302739][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.302739][ T10] ipv6_find_idev+0x102/0x170 [ 1712.302739][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.302739][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.302739][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.302739][ T10] netlink_unicast+0x449/0x710 [ 1712.302739][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.302739][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.302739][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.302739][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.302739][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.302739][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.302739][ T10] [ 1712.304672][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1712.304980][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1712.304980][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.304980][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.304980][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.304980][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.304980][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.304980][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.304980][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.304980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.304980][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.304980][ T10] netlink_unicast+0x449/0x710 [ 1712.304980][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.304980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.304980][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.304980][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.304980][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.304980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.304980][ T10] [ 1712.307249][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1712.307249][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.307249][ T10] ipv6_find_idev+0x102/0x170 [ 1712.307249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.307249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.307249][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.307249][ T10] netlink_unicast+0x449/0x710 [ 1712.307249][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.307249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.307249][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.307249][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.307249][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.307249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.307249][ T10] [ 1712.308959][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1712.308959][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.308959][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.308959][ T10] ipv6_find_idev+0x102/0x170 [ 1712.308959][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.308959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.308959][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.308959][ T10] netlink_unicast+0x449/0x710 [ 1712.308959][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.308959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.308959][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.308959][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.308959][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.308959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.308959][ T10] [ 1712.310855][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1712.311154][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1712.311154][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.311154][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.311154][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.311154][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.311154][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.311154][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.311154][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.311154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.311154][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.311154][ T10] netlink_unicast+0x449/0x710 [ 1712.311154][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.311154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.311154][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.311154][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.311154][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.311154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.311154][ T10] [ 1712.313393][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1712.313393][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.313393][ T10] ipv6_find_idev+0x102/0x170 [ 1712.313393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.313393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.313393][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.313393][ T10] netlink_unicast+0x449/0x710 [ 1712.313393][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.313393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.313393][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.313393][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.313393][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.313393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.313393][ T10] [ 1712.315098][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1712.315098][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.315098][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.315098][ T10] ipv6_find_idev+0x102/0x170 [ 1712.315098][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.315098][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.315098][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.315098][ T10] netlink_unicast+0x449/0x710 [ 1712.315098][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.315098][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.315098][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.315098][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.315098][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.315098][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.315098][ T10] [ 1712.317398][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1712.318090][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1712.318090][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.318090][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.318090][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.318090][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.318090][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.318090][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.318090][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.318090][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.318090][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.318090][ T10] netlink_unicast+0x449/0x710 [ 1712.318090][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.318090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.318090][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.318090][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.318090][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.318090][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.318090][ T10] [ 1712.320312][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1712.320312][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.320312][ T10] ipv6_find_idev+0x102/0x170 [ 1712.320312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.320312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.320312][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.320312][ T10] netlink_unicast+0x449/0x710 [ 1712.320312][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.320312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.320312][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.320312][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.320312][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.320312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.320312][ T10] [ 1712.322029][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1712.322029][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.322029][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.322029][ T10] ipv6_find_idev+0x102/0x170 [ 1712.322029][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.322029][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.322029][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.322029][ T10] netlink_unicast+0x449/0x710 [ 1712.322029][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.322029][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.322029][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.322029][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.322029][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.322029][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.322029][ T10] [ 1712.323917][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1712.324212][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1712.324212][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.324212][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.324212][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.324212][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.324212][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.324212][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.324212][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.324212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.324212][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.324212][ T10] netlink_unicast+0x449/0x710 [ 1712.324212][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.324212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.324212][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.324212][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.324212][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.324212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.324212][ T10] [ 1712.326438][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1712.326438][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.326438][ T10] ipv6_find_idev+0x102/0x170 [ 1712.326438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.326438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.326438][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.326438][ T10] netlink_unicast+0x449/0x710 [ 1712.326438][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.326438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.326438][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.326438][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.326438][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.326438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.326438][ T10] [ 1712.328144][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1712.328144][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.328144][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.328144][ T10] ipv6_find_idev+0x102/0x170 [ 1712.328144][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.328144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.328144][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.328144][ T10] netlink_unicast+0x449/0x710 [ 1712.328144][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.328144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.328144][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.328144][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.328144][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.328144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.328144][ T10] [ 1712.330226][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1712.330566][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1712.330566][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.330566][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.330566][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.330566][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.330566][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.330566][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.330566][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.330566][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.330566][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.330566][ T10] netlink_unicast+0x449/0x710 [ 1712.330566][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.330566][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.330566][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.330566][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.330566][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.330566][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.330566][ T10] [ 1712.332890][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1712.332890][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.332890][ T10] ipv6_find_idev+0x102/0x170 [ 1712.332890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.332890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.332890][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.332890][ T10] netlink_unicast+0x449/0x710 [ 1712.332890][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.332890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.332890][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.332890][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.332890][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.332890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.332890][ T10] [ 1712.334760][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1712.334760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.334760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.334760][ T10] ipv6_find_idev+0x102/0x170 [ 1712.334760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.334760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.334760][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.334760][ T10] netlink_unicast+0x449/0x710 [ 1712.334760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.334760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.334760][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.334760][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.334760][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.334760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.334760][ T10] [ 1712.336824][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1712.337163][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1712.337163][ T10] netdev_get_by_index+0x5e/0x80 [ 1712.337163][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1712.337163][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1712.337163][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1712.337163][ T10] ipv6_add_addr+0x411/0x2000 [ 1712.337163][ T10] inet6_addr_add+0x30e/0xa40 [ 1712.337163][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1712.337163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.337163][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.337163][ T10] netlink_unicast+0x449/0x710 [ 1712.337163][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.337163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.337163][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.337163][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.337163][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.337163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.337163][ T10] [ 1712.339449][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1712.339449][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1712.339449][ T10] ipv6_find_idev+0x102/0x170 [ 1712.339449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.339449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.339449][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.339449][ T10] netlink_unicast+0x449/0x710 [ 1712.339449][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.339449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.339449][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.339449][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.339449][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.339449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.339449][ T10] [ 1712.341241][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1712.341241][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1712.341241][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1712.341241][ T10] ipv6_find_idev+0x102/0x170 [ 1712.341241][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1712.341241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1712.341241][ T10] netlink_rcv_skb+0x130/0x360 [ 1712.341241][ T10] netlink_unicast+0x449/0x710 [ 1712.341241][ T10] netlink_sendmsg+0x723/0xbe0 [ 1712.341241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1712.341241][ T10] ___sys_sendmsg+0xee/0x170 [ 1712.341241][ T10] __sys_sendmsg+0xcd/0x170 [ 1712.341241][ T10] do_syscall_64+0xc6/0x1e0 [ 1712.341241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1712.341241][ T10] [ 1722.443822][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1722.444205][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1722.444205][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.444205][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.444205][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.444205][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.444205][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.444205][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.444205][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.444205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.444205][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.444205][ T10] netlink_unicast+0x449/0x710 [ 1722.444205][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.444205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.444205][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.444205][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.444205][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.444205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.444205][ T10] [ 1722.446528][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1722.446528][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.446528][ T10] ipv6_find_idev+0x102/0x170 [ 1722.446528][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.446528][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.446528][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.446528][ T10] netlink_unicast+0x449/0x710 [ 1722.446528][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.446528][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.446528][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.446528][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.446528][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.446528][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.446528][ T10] [ 1722.448363][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1722.448363][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.448363][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.448363][ T10] ipv6_find_idev+0x102/0x170 [ 1722.448363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.448363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.448363][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.448363][ T10] netlink_unicast+0x449/0x710 [ 1722.448363][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.448363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.448363][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.448363][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.448363][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.448363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.448363][ T10] [ 1722.450422][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1722.450738][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1722.450738][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.450738][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.450738][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.450738][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.450738][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.450738][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.450738][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.450738][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.450738][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.450738][ T10] netlink_unicast+0x449/0x710 [ 1722.450738][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.450738][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.450738][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.450738][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.450738][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.450738][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.450738][ T10] [ 1722.453040][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1722.453040][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.453040][ T10] ipv6_find_idev+0x102/0x170 [ 1722.453040][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.453040][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.453040][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.453040][ T10] netlink_unicast+0x449/0x710 [ 1722.453040][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.453040][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.453040][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.453040][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.453040][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.453040][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.453040][ T10] [ 1722.454769][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1722.454769][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.454769][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.454769][ T10] ipv6_find_idev+0x102/0x170 [ 1722.454769][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.454769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.454769][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.454769][ T10] netlink_unicast+0x449/0x710 [ 1722.454769][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.454769][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.454769][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.454769][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.454769][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.454769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.454769][ T10] [ 1722.456657][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1722.456954][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1722.456954][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.456954][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.456954][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.456954][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.456954][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.456954][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.456954][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.456954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.456954][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.456954][ T10] netlink_unicast+0x449/0x710 [ 1722.456954][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.456954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.456954][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.456954][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.456954][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.456954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.456954][ T10] [ 1722.459194][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1722.459194][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.459194][ T10] ipv6_find_idev+0x102/0x170 [ 1722.459194][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.459194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.459194][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.459194][ T10] netlink_unicast+0x449/0x710 [ 1722.459194][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.459194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.459194][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.459194][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.459194][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.459194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.459194][ T10] [ 1722.460971][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1722.460971][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.460971][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.460971][ T10] ipv6_find_idev+0x102/0x170 [ 1722.460971][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.460971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.460971][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.460971][ T10] netlink_unicast+0x449/0x710 [ 1722.460971][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.460971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.460971][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.460971][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.460971][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.460971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.460971][ T10] [ 1722.463445][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1722.463762][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1722.463762][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.463762][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.463762][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.463762][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.463762][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.463762][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.463762][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.463762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.463762][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.463762][ T10] netlink_unicast+0x449/0x710 [ 1722.463762][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.463762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.463762][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.463762][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.463762][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.463762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.463762][ T10] [ 1722.466086][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1722.466086][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.466086][ T10] ipv6_find_idev+0x102/0x170 [ 1722.466086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.466086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.466086][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.466086][ T10] netlink_unicast+0x449/0x710 [ 1722.466086][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.466086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.466086][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.466086][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.466086][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.466086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.466086][ T10] [ 1722.468230][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1722.468230][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.468230][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.468230][ T10] ipv6_find_idev+0x102/0x170 [ 1722.468230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.468230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.468230][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.468230][ T10] netlink_unicast+0x449/0x710 [ 1722.468230][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.468230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.468230][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.468230][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.468230][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.468230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.468230][ T10] [ 1722.470303][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1722.470611][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1722.470611][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.470611][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.470611][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.470611][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.470611][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.470611][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.470611][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.470611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.470611][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.470611][ T10] netlink_unicast+0x449/0x710 [ 1722.470611][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.470611][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.470611][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.470611][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.470611][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.470611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.470611][ T10] [ 1722.473228][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1722.473228][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.473228][ T10] ipv6_find_idev+0x102/0x170 [ 1722.473228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.473228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.473228][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.473228][ T10] netlink_unicast+0x449/0x710 [ 1722.473228][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.473228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.473228][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.473228][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.473228][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.473228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.473228][ T10] [ 1722.475214][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1722.475214][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.475214][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.475214][ T10] ipv6_find_idev+0x102/0x170 [ 1722.475214][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.475214][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.475214][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.475214][ T10] netlink_unicast+0x449/0x710 [ 1722.475214][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.475214][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.475214][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.475214][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.475214][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.475214][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.475214][ T10] [ 1722.477864][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1722.478224][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1722.478224][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.478224][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.478224][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.478224][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.478224][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.478224][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.478224][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.478224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.478224][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.478224][ T10] netlink_unicast+0x449/0x710 [ 1722.478224][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.478224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.478224][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.478224][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.478224][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.478224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.478224][ T10] [ 1722.480488][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1722.480488][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.480488][ T10] ipv6_find_idev+0x102/0x170 [ 1722.480488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.480488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.480488][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.480488][ T10] netlink_unicast+0x449/0x710 [ 1722.480488][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.480488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.480488][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.480488][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.480488][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.480488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.480488][ T10] [ 1722.482397][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1722.482397][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.482397][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.482397][ T10] ipv6_find_idev+0x102/0x170 [ 1722.482397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.482397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.482397][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.482397][ T10] netlink_unicast+0x449/0x710 [ 1722.482397][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.482397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.482397][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.482397][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.482397][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.482397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.482397][ T10] [ 1722.484461][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1722.484829][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1722.484829][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.484829][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.484829][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.484829][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.484829][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.484829][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.484829][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.484829][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.484829][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.484829][ T10] netlink_unicast+0x449/0x710 [ 1722.484829][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.484829][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.484829][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.484829][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.484829][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.484829][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.484829][ T10] [ 1722.487307][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1722.487307][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.487307][ T10] ipv6_find_idev+0x102/0x170 [ 1722.487307][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.487307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.487307][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.487307][ T10] netlink_unicast+0x449/0x710 [ 1722.487307][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.487307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.487307][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.487307][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.487307][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.487307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.487307][ T10] [ 1722.489229][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1722.489229][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.489229][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.489229][ T10] ipv6_find_idev+0x102/0x170 [ 1722.489229][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.489229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.489229][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.489229][ T10] netlink_unicast+0x449/0x710 [ 1722.489229][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.489229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.489229][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.489229][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.489229][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.489229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.489229][ T10] [ 1722.491377][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1722.491748][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1722.491748][ T10] netdev_get_by_index+0x5e/0x80 [ 1722.491748][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1722.491748][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1722.491748][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1722.491748][ T10] ipv6_add_addr+0x411/0x2000 [ 1722.491748][ T10] inet6_addr_add+0x30e/0xa40 [ 1722.491748][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1722.491748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.491748][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.491748][ T10] netlink_unicast+0x449/0x710 [ 1722.491748][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.491748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.491748][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.491748][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.491748][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.491748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.491748][ T10] [ 1722.494190][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1722.494190][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1722.494190][ T10] ipv6_find_idev+0x102/0x170 [ 1722.494190][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.494190][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.494190][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.494190][ T10] netlink_unicast+0x449/0x710 [ 1722.494190][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.494190][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.494190][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.494190][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.494190][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.494190][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.494190][ T10] [ 1722.496033][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1722.496033][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1722.496033][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1722.496033][ T10] ipv6_find_idev+0x102/0x170 [ 1722.496033][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1722.496033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1722.496033][ T10] netlink_rcv_skb+0x130/0x360 [ 1722.496033][ T10] netlink_unicast+0x449/0x710 [ 1722.496033][ T10] netlink_sendmsg+0x723/0xbe0 [ 1722.496033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1722.496033][ T10] ___sys_sendmsg+0xee/0x170 [ 1722.496033][ T10] __sys_sendmsg+0xcd/0x170 [ 1722.496033][ T10] do_syscall_64+0xc6/0x1e0 [ 1722.496033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1722.496033][ T10] [ 1732.651663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1732.652042][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1732.652042][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.652042][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.652042][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.652042][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.652042][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.652042][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.652042][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.652042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.652042][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.652042][ T10] netlink_unicast+0x449/0x710 [ 1732.652042][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.652042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.652042][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.652042][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.652042][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.652042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.652042][ T10] [ 1732.654167][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1732.654167][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.654167][ T10] ipv6_find_idev+0x102/0x170 [ 1732.654167][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.654167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.654167][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.654167][ T10] netlink_unicast+0x449/0x710 [ 1732.654167][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.654167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.654167][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.654167][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.654167][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.654167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.654167][ T10] [ 1732.655701][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1732.655701][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.655701][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.655701][ T10] ipv6_find_idev+0x102/0x170 [ 1732.655701][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.655701][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.655701][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.655701][ T10] netlink_unicast+0x449/0x710 [ 1732.655701][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.655701][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.655701][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.655701][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.655701][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.655701][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.655701][ T10] [ 1732.657416][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1732.657950][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1732.657950][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.657950][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.657950][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.657950][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.657950][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.657950][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.657950][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.657950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.657950][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.657950][ T10] netlink_unicast+0x449/0x710 [ 1732.657950][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.657950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.657950][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.657950][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.657950][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.657950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.657950][ T10] [ 1732.659972][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1732.659972][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.659972][ T10] ipv6_find_idev+0x102/0x170 [ 1732.659972][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.659972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.659972][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.659972][ T10] netlink_unicast+0x449/0x710 [ 1732.659972][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.659972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.659972][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.659972][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.659972][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.659972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.659972][ T10] [ 1732.661511][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1732.661511][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.661511][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.661511][ T10] ipv6_find_idev+0x102/0x170 [ 1732.661511][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.661511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.661511][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.661511][ T10] netlink_unicast+0x449/0x710 [ 1732.661511][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.661511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.661511][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.661511][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.661511][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.661511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.661511][ T10] [ 1732.663223][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1732.663507][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1732.663507][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.663507][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.663507][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.663507][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.663507][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.663507][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.663507][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.663507][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.663507][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.663507][ T10] netlink_unicast+0x449/0x710 [ 1732.663507][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.663507][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.663507][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.663507][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.663507][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.663507][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.663507][ T10] [ 1732.665534][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1732.665534][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.665534][ T10] ipv6_find_idev+0x102/0x170 [ 1732.665534][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.665534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.665534][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.665534][ T10] netlink_unicast+0x449/0x710 [ 1732.665534][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.665534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.665534][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.665534][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.665534][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.665534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.665534][ T10] [ 1732.667074][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1732.667074][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.667074][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.667074][ T10] ipv6_find_idev+0x102/0x170 [ 1732.667074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.667074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.667074][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.667074][ T10] netlink_unicast+0x449/0x710 [ 1732.667074][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.667074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.667074][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.667074][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.667074][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.667074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.667074][ T10] [ 1732.668774][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1732.669052][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1732.669052][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.669052][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.669052][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.669052][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.669052][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.669052][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.669052][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.669052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.669052][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.669052][ T10] netlink_unicast+0x449/0x710 [ 1732.669052][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.669052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.669052][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.669052][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.669052][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.669052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.669052][ T10] [ 1732.671063][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1732.671063][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.671063][ T10] ipv6_find_idev+0x102/0x170 [ 1732.671063][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.671063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.671063][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.671063][ T10] netlink_unicast+0x449/0x710 [ 1732.671063][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.671063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.671063][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.671063][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.671063][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.671063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.671063][ T10] [ 1732.672683][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1732.672683][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.672683][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.672683][ T10] ipv6_find_idev+0x102/0x170 [ 1732.672683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.672683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.672683][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.672683][ T10] netlink_unicast+0x449/0x710 [ 1732.672683][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.672683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.672683][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.672683][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.672683][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.672683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.672683][ T10] [ 1732.674712][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1732.674987][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1732.674987][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.674987][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.674987][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.674987][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.674987][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.674987][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.674987][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.674987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.674987][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.674987][ T10] netlink_unicast+0x449/0x710 [ 1732.674987][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.674987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.674987][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.674987][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.674987][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.674987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.674987][ T10] [ 1732.677164][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1732.677164][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.677164][ T10] ipv6_find_idev+0x102/0x170 [ 1732.677164][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.677164][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.677164][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.677164][ T10] netlink_unicast+0x449/0x710 [ 1732.677164][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.677164][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.677164][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.677164][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.677164][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.677164][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.677164][ T10] [ 1732.678942][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1732.678942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.678942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.678942][ T10] ipv6_find_idev+0x102/0x170 [ 1732.678942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.678942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.678942][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.678942][ T10] netlink_unicast+0x449/0x710 [ 1732.678942][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.678942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.678942][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.678942][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.678942][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.678942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.678942][ T10] [ 1732.680839][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1732.681184][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1732.681184][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.681184][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.681184][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.681184][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.681184][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.681184][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.681184][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.681184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.681184][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.681184][ T10] netlink_unicast+0x449/0x710 [ 1732.681184][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.681184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.681184][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.681184][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.681184][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.681184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.681184][ T10] [ 1732.683273][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1732.683273][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.683273][ T10] ipv6_find_idev+0x102/0x170 [ 1732.683273][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.683273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.683273][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.683273][ T10] netlink_unicast+0x449/0x710 [ 1732.683273][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.683273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.683273][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.683273][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.683273][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.683273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.683273][ T10] [ 1732.684939][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1732.684939][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.684939][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.684939][ T10] ipv6_find_idev+0x102/0x170 [ 1732.684939][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.684939][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.684939][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.684939][ T10] netlink_unicast+0x449/0x710 [ 1732.684939][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.684939][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.684939][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.684939][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.684939][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.684939][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.684939][ T10] [ 1732.687237][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1732.687990][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1732.687990][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.687990][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.687990][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.687990][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.687990][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.687990][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.687990][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.687990][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.687990][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.687990][ T10] netlink_unicast+0x449/0x710 [ 1732.687990][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.687990][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.687990][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.687990][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.687990][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.687990][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.687990][ T10] [ 1732.689995][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1732.689995][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.689995][ T10] ipv6_find_idev+0x102/0x170 [ 1732.689995][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.689995][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.689995][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.689995][ T10] netlink_unicast+0x449/0x710 [ 1732.689995][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.689995][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.689995][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.689995][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.689995][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.689995][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.689995][ T10] [ 1732.691533][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1732.691533][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.691533][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.691533][ T10] ipv6_find_idev+0x102/0x170 [ 1732.691533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.691533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.691533][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.691533][ T10] netlink_unicast+0x449/0x710 [ 1732.691533][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.691533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.691533][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.691533][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.691533][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.691533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.691533][ T10] [ 1732.693286][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1732.693566][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1732.693566][ T10] netdev_get_by_index+0x5e/0x80 [ 1732.693566][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1732.693566][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1732.693566][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1732.693566][ T10] ipv6_add_addr+0x411/0x2000 [ 1732.693566][ T10] inet6_addr_add+0x30e/0xa40 [ 1732.693566][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1732.693566][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.693566][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.693566][ T10] netlink_unicast+0x449/0x710 [ 1732.693566][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.693566][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.693566][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.693566][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.693566][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.693566][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.693566][ T10] [ 1732.695704][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1732.695704][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1732.695704][ T10] ipv6_find_idev+0x102/0x170 [ 1732.695704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.695704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.695704][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.695704][ T10] netlink_unicast+0x449/0x710 [ 1732.695704][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.695704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.695704][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.695704][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.695704][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.695704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.695704][ T10] [ 1732.697425][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1732.697425][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1732.697425][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1732.697425][ T10] ipv6_find_idev+0x102/0x170 [ 1732.697425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1732.697425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1732.697425][ T10] netlink_rcv_skb+0x130/0x360 [ 1732.697425][ T10] netlink_unicast+0x449/0x710 [ 1732.697425][ T10] netlink_sendmsg+0x723/0xbe0 [ 1732.697425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1732.697425][ T10] ___sys_sendmsg+0xee/0x170 [ 1732.697425][ T10] __sys_sendmsg+0xcd/0x170 [ 1732.697425][ T10] do_syscall_64+0xc6/0x1e0 [ 1732.697425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1732.697425][ T10] [ 1742.827667][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1742.828009][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1742.828009][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.828009][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.828009][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.828009][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.828009][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.828009][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.828009][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.828009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.828009][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.828009][ T10] netlink_unicast+0x449/0x710 [ 1742.828009][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.828009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.828009][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.828009][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.828009][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.828009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.828009][ T10] [ 1742.830024][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1742.830024][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.830024][ T10] ipv6_find_idev+0x102/0x170 [ 1742.830024][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.830024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.830024][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.830024][ T10] netlink_unicast+0x449/0x710 [ 1742.830024][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.830024][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.830024][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.830024][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.830024][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.830024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.830024][ T10] [ 1742.831578][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1742.831578][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.831578][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.831578][ T10] ipv6_find_idev+0x102/0x170 [ 1742.831578][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.831578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.831578][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.831578][ T10] netlink_unicast+0x449/0x710 [ 1742.831578][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.831578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.831578][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.831578][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.831578][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.831578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.831578][ T10] [ 1742.833282][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1742.833551][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1742.833551][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.833551][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.833551][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.833551][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.833551][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.833551][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.833551][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.833551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.833551][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.833551][ T10] netlink_unicast+0x449/0x710 [ 1742.833551][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.833551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.833551][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.833551][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.833551][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.833551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.833551][ T10] [ 1742.835550][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1742.835550][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.835550][ T10] ipv6_find_idev+0x102/0x170 [ 1742.835550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.835550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.835550][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.835550][ T10] netlink_unicast+0x449/0x710 [ 1742.835550][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.835550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.835550][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.835550][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.835550][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.835550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.835550][ T10] [ 1742.837091][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1742.837091][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.837091][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.837091][ T10] ipv6_find_idev+0x102/0x170 [ 1742.837091][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.837091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.837091][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.837091][ T10] netlink_unicast+0x449/0x710 [ 1742.837091][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.837091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.837091][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.837091][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.837091][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.837091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.837091][ T10] [ 1742.838882][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1742.839153][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1742.839153][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.839153][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.839153][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.839153][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.839153][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.839153][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.839153][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.839153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.839153][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.839153][ T10] netlink_unicast+0x449/0x710 [ 1742.839153][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.839153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.839153][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.839153][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.839153][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.839153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.839153][ T10] [ 1742.841153][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1742.841153][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.841153][ T10] ipv6_find_idev+0x102/0x170 [ 1742.841153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.841153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.841153][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.841153][ T10] netlink_unicast+0x449/0x710 [ 1742.841153][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.841153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.841153][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.841153][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.841153][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.841153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.841153][ T10] [ 1742.842686][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1742.842686][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.842686][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.842686][ T10] ipv6_find_idev+0x102/0x170 [ 1742.842686][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.842686][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.842686][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.842686][ T10] netlink_unicast+0x449/0x710 [ 1742.842686][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.842686][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.842686][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.842686][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.842686][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.842686][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.842686][ T10] [ 1742.844445][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1742.845157][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1742.845157][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.845157][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.845157][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.845157][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.845157][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.845157][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.845157][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.845157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.845157][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.845157][ T10] netlink_unicast+0x449/0x710 [ 1742.845157][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.845157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.845157][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.845157][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.845157][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.845157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.845157][ T10] [ 1742.847146][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1742.847146][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.847146][ T10] ipv6_find_idev+0x102/0x170 [ 1742.847146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.847146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.847146][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.847146][ T10] netlink_unicast+0x449/0x710 [ 1742.847146][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.847146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.847146][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.847146][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.847146][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.847146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.847146][ T10] [ 1742.848683][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1742.848683][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.848683][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.848683][ T10] ipv6_find_idev+0x102/0x170 [ 1742.848683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.848683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.848683][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.848683][ T10] netlink_unicast+0x449/0x710 [ 1742.848683][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.848683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.848683][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.848683][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.848683][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.848683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.848683][ T10] [ 1742.850487][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1742.850840][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1742.850840][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.850840][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.850840][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.850840][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.850840][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.850840][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.850840][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.850840][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.850840][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.850840][ T10] netlink_unicast+0x449/0x710 [ 1742.850840][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.850840][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.850840][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.850840][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.850840][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.850840][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.850840][ T10] [ 1742.853038][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1742.853038][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.853038][ T10] ipv6_find_idev+0x102/0x170 [ 1742.853038][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.853038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.853038][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.853038][ T10] netlink_unicast+0x449/0x710 [ 1742.853038][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.853038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.853038][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.853038][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.853038][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.853038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.853038][ T10] [ 1742.854760][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1742.854760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.854760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.854760][ T10] ipv6_find_idev+0x102/0x170 [ 1742.854760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.854760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.854760][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.854760][ T10] netlink_unicast+0x449/0x710 [ 1742.854760][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.854760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.854760][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.854760][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.854760][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.854760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.854760][ T10] [ 1742.856751][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1742.857018][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1742.857018][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.857018][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.857018][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.857018][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.857018][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.857018][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.857018][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.857018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.857018][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.857018][ T10] netlink_unicast+0x449/0x710 [ 1742.857018][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.857018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.857018][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.857018][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.857018][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.857018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.857018][ T10] [ 1742.859136][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1742.859136][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.859136][ T10] ipv6_find_idev+0x102/0x170 [ 1742.859136][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.859136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.859136][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.859136][ T10] netlink_unicast+0x449/0x710 [ 1742.859136][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.859136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.859136][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.859136][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.859136][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.859136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.859136][ T10] [ 1742.860854][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1742.860854][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.860854][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.860854][ T10] ipv6_find_idev+0x102/0x170 [ 1742.860854][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.860854][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.860854][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.860854][ T10] netlink_unicast+0x449/0x710 [ 1742.860854][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.860854][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.860854][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.860854][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.860854][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.860854][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.860854][ T10] [ 1742.862800][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1742.863074][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1742.863074][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.863074][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.863074][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.863074][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.863074][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.863074][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.863074][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.863074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.863074][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.863074][ T10] netlink_unicast+0x449/0x710 [ 1742.863074][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.863074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.863074][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.863074][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.863074][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.863074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.863074][ T10] [ 1742.865124][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1742.865124][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.865124][ T10] ipv6_find_idev+0x102/0x170 [ 1742.865124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.865124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.865124][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.865124][ T10] netlink_unicast+0x449/0x710 [ 1742.865124][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.865124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.865124][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.865124][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.865124][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.865124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.865124][ T10] [ 1742.866856][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1742.866856][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.866856][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.866856][ T10] ipv6_find_idev+0x102/0x170 [ 1742.866856][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.866856][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.866856][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.866856][ T10] netlink_unicast+0x449/0x710 [ 1742.866856][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.866856][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.866856][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.866856][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.866856][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.866856][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.866856][ T10] [ 1742.868851][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1742.869123][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1742.869123][ T10] netdev_get_by_index+0x5e/0x80 [ 1742.869123][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1742.869123][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1742.869123][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1742.869123][ T10] ipv6_add_addr+0x411/0x2000 [ 1742.869123][ T10] inet6_addr_add+0x30e/0xa40 [ 1742.869123][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.869123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.869123][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.869123][ T10] netlink_unicast+0x449/0x710 [ 1742.869123][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.869123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.869123][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.869123][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.869123][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.869123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.869123][ T10] [ 1742.871198][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1742.871198][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1742.871198][ T10] ipv6_find_idev+0x102/0x170 [ 1742.871198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.871198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.871198][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.871198][ T10] netlink_unicast+0x449/0x710 [ 1742.871198][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.871198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.871198][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.871198][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.871198][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.871198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.871198][ T10] [ 1742.872860][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1742.872860][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1742.872860][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1742.872860][ T10] ipv6_find_idev+0x102/0x170 [ 1742.872860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.872860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.872860][ T10] netlink_rcv_skb+0x130/0x360 [ 1742.872860][ T10] netlink_unicast+0x449/0x710 [ 1742.872860][ T10] netlink_sendmsg+0x723/0xbe0 [ 1742.872860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1742.872860][ T10] ___sys_sendmsg+0xee/0x170 [ 1742.872860][ T10] __sys_sendmsg+0xcd/0x170 [ 1742.872860][ T10] do_syscall_64+0xc6/0x1e0 [ 1742.872860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.872860][ T10] [ 1752.931777][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1752.932301][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1752.932301][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.932301][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.932301][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.932301][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.932301][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.932301][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.932301][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.932301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.932301][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.932301][ T10] netlink_unicast+0x449/0x710 [ 1752.932301][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.932301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.932301][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.932301][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.932301][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.932301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.932301][ T10] [ 1752.934663][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1752.934663][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.934663][ T10] ipv6_find_idev+0x102/0x170 [ 1752.934663][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.934663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.934663][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.934663][ T10] netlink_unicast+0x449/0x710 [ 1752.934663][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.934663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.934663][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.934663][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.934663][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.934663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.934663][ T10] [ 1752.936438][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1752.936438][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.936438][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.936438][ T10] ipv6_find_idev+0x102/0x170 [ 1752.936438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.936438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.936438][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.936438][ T10] netlink_unicast+0x449/0x710 [ 1752.936438][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.936438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.936438][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.936438][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.936438][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.936438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.936438][ T10] [ 1752.938389][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1752.938735][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1752.938735][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.938735][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.938735][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.938735][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.938735][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.938735][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.938735][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.938735][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.938735][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.938735][ T10] netlink_unicast+0x449/0x710 [ 1752.938735][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.938735][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.938735][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.938735][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.938735][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.938735][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.938735][ T10] [ 1752.941005][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1752.941005][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.941005][ T10] ipv6_find_idev+0x102/0x170 [ 1752.941005][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.941005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.941005][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.941005][ T10] netlink_unicast+0x449/0x710 [ 1752.941005][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.941005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.941005][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.941005][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.941005][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.941005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.941005][ T10] [ 1752.942771][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1752.942771][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.942771][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.942771][ T10] ipv6_find_idev+0x102/0x170 [ 1752.942771][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.942771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.942771][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.942771][ T10] netlink_unicast+0x449/0x710 [ 1752.942771][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.942771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.942771][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.942771][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.942771][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.942771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.942771][ T10] [ 1752.944697][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1752.945006][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1752.945006][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.945006][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.945006][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.945006][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.945006][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.945006][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.945006][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.945006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.945006][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.945006][ T10] netlink_unicast+0x449/0x710 [ 1752.945006][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.945006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.945006][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.945006][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.945006][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.945006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.945006][ T10] [ 1752.947270][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1752.947270][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.947270][ T10] ipv6_find_idev+0x102/0x170 [ 1752.947270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.947270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.947270][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.947270][ T10] netlink_unicast+0x449/0x710 [ 1752.947270][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.947270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.947270][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.947270][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.947270][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.947270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.947270][ T10] [ 1752.949014][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1752.949014][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.949014][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.949014][ T10] ipv6_find_idev+0x102/0x170 [ 1752.949014][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.949014][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.949014][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.949014][ T10] netlink_unicast+0x449/0x710 [ 1752.949014][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.949014][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.949014][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.949014][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.949014][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.949014][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.949014][ T10] [ 1752.950920][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1752.951221][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1752.951221][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.951221][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.951221][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.951221][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.951221][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.951221][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.951221][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.951221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.951221][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.951221][ T10] netlink_unicast+0x449/0x710 [ 1752.951221][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.951221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.951221][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.951221][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.951221][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.951221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.951221][ T10] [ 1752.953483][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1752.953483][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.953483][ T10] ipv6_find_idev+0x102/0x170 [ 1752.953483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.953483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.953483][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.953483][ T10] netlink_unicast+0x449/0x710 [ 1752.953483][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.953483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.953483][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.953483][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.953483][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.953483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.953483][ T10] [ 1752.955218][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1752.955218][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.955218][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.955218][ T10] ipv6_find_idev+0x102/0x170 [ 1752.955218][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.955218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.955218][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.955218][ T10] netlink_unicast+0x449/0x710 [ 1752.955218][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.955218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.955218][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.955218][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.955218][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.955218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.955218][ T10] [ 1752.957567][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1752.957934][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1752.957934][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.957934][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.957934][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.957934][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.957934][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.957934][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.957934][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.957934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.957934][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.957934][ T10] netlink_unicast+0x449/0x710 [ 1752.957934][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.957934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.957934][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.957934][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.957934][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.957934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.957934][ T10] [ 1752.960195][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1752.960195][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.960195][ T10] ipv6_find_idev+0x102/0x170 [ 1752.960195][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.960195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.960195][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.960195][ T10] netlink_unicast+0x449/0x710 [ 1752.960195][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.960195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.960195][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.960195][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.960195][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.960195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.960195][ T10] [ 1752.961939][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1752.961939][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.961939][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.961939][ T10] ipv6_find_idev+0x102/0x170 [ 1752.961939][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.961939][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.961939][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.961939][ T10] netlink_unicast+0x449/0x710 [ 1752.961939][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.961939][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.961939][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.961939][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.961939][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.961939][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.961939][ T10] [ 1752.963911][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1752.964272][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1752.964272][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.964272][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.964272][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.964272][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.964272][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.964272][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.964272][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.964272][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.964272][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.964272][ T10] netlink_unicast+0x449/0x710 [ 1752.964272][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.964272][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.964272][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.964272][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.964272][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.964272][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.964272][ T10] [ 1752.966608][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1752.966608][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.966608][ T10] ipv6_find_idev+0x102/0x170 [ 1752.966608][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.966608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.966608][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.966608][ T10] netlink_unicast+0x449/0x710 [ 1752.966608][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.966608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.966608][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.966608][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.966608][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.966608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.966608][ T10] [ 1752.968596][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1752.968596][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.968596][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.968596][ T10] ipv6_find_idev+0x102/0x170 [ 1752.968596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.968596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.968596][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.968596][ T10] netlink_unicast+0x449/0x710 [ 1752.968596][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.968596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.968596][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.968596][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.968596][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.968596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.968596][ T10] [ 1752.970802][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1752.971159][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1752.971159][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.971159][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.971159][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.971159][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.971159][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.971159][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.971159][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.971159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.971159][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.971159][ T10] netlink_unicast+0x449/0x710 [ 1752.971159][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.971159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.971159][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.971159][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.971159][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.971159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.971159][ T10] [ 1752.973611][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1752.973611][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.973611][ T10] ipv6_find_idev+0x102/0x170 [ 1752.973611][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.973611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.973611][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.973611][ T10] netlink_unicast+0x449/0x710 [ 1752.973611][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.973611][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.973611][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.973611][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.973611][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.973611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.973611][ T10] [ 1752.975557][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1752.975557][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.975557][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.975557][ T10] ipv6_find_idev+0x102/0x170 [ 1752.975557][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.975557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.975557][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.975557][ T10] netlink_unicast+0x449/0x710 [ 1752.975557][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.975557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.975557][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.975557][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.975557][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.975557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.975557][ T10] [ 1752.977713][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1752.978058][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1752.978058][ T10] netdev_get_by_index+0x5e/0x80 [ 1752.978058][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1752.978058][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1752.978058][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1752.978058][ T10] ipv6_add_addr+0x411/0x2000 [ 1752.978058][ T10] inet6_addr_add+0x30e/0xa40 [ 1752.978058][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.978058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.978058][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.978058][ T10] netlink_unicast+0x449/0x710 [ 1752.978058][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.978058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.978058][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.978058][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.978058][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.978058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.978058][ T10] [ 1752.980593][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1752.980593][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1752.980593][ T10] ipv6_find_idev+0x102/0x170 [ 1752.980593][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.980593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.980593][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.980593][ T10] netlink_unicast+0x449/0x710 [ 1752.980593][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.980593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.980593][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.980593][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.980593][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.980593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.980593][ T10] [ 1752.982545][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1752.982545][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1752.982545][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1752.982545][ T10] ipv6_find_idev+0x102/0x170 [ 1752.982545][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.982545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.982545][ T10] netlink_rcv_skb+0x130/0x360 [ 1752.982545][ T10] netlink_unicast+0x449/0x710 [ 1752.982545][ T10] netlink_sendmsg+0x723/0xbe0 [ 1752.982545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1752.982545][ T10] ___sys_sendmsg+0xee/0x170 [ 1752.982545][ T10] __sys_sendmsg+0xcd/0x170 [ 1752.982545][ T10] do_syscall_64+0xc6/0x1e0 [ 1752.982545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.982545][ T10] [ 1763.227752][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1763.228201][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1763.228201][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.228201][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.228201][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.228201][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.228201][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.228201][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.228201][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.228201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.228201][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.228201][ T10] netlink_unicast+0x449/0x710 [ 1763.228201][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.228201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.228201][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.228201][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.228201][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.228201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.228201][ T10] [ 1763.230350][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1763.230350][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.230350][ T10] ipv6_find_idev+0x102/0x170 [ 1763.230350][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.230350][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.230350][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.230350][ T10] netlink_unicast+0x449/0x710 [ 1763.230350][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.230350][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.230350][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.230350][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.230350][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.230350][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.230350][ T10] [ 1763.231928][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1763.231928][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.231928][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.231928][ T10] ipv6_find_idev+0x102/0x170 [ 1763.231928][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.231928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.231928][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.231928][ T10] netlink_unicast+0x449/0x710 [ 1763.231928][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.231928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.231928][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.231928][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.231928][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.231928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.231928][ T10] [ 1763.233658][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1763.233929][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1763.233929][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.233929][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.233929][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.233929][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.233929][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.233929][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.233929][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.233929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.233929][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.233929][ T10] netlink_unicast+0x449/0x710 [ 1763.233929][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.233929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.233929][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.233929][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.233929][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.233929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.233929][ T10] [ 1763.235909][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1763.235909][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.235909][ T10] ipv6_find_idev+0x102/0x170 [ 1763.235909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.235909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.235909][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.235909][ T10] netlink_unicast+0x449/0x710 [ 1763.235909][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.235909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.235909][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.235909][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.235909][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.235909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.235909][ T10] [ 1763.237440][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1763.237440][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.237440][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.237440][ T10] ipv6_find_idev+0x102/0x170 [ 1763.237440][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.237440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.237440][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.237440][ T10] netlink_unicast+0x449/0x710 [ 1763.237440][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.237440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.237440][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.237440][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.237440][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.237440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.237440][ T10] [ 1763.239117][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1763.239385][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1763.239385][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.239385][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.239385][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.239385][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.239385][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.239385][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.239385][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.239385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.239385][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.239385][ T10] netlink_unicast+0x449/0x710 [ 1763.239385][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.239385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.239385][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.239385][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.239385][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.239385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.239385][ T10] [ 1763.241371][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1763.241371][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.241371][ T10] ipv6_find_idev+0x102/0x170 [ 1763.241371][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.241371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.241371][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.241371][ T10] netlink_unicast+0x449/0x710 [ 1763.241371][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.241371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.241371][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.241371][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.241371][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.241371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.241371][ T10] [ 1763.242908][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1763.242908][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.242908][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.242908][ T10] ipv6_find_idev+0x102/0x170 [ 1763.242908][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.242908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.242908][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.242908][ T10] netlink_unicast+0x449/0x710 [ 1763.242908][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.242908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.242908][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.242908][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.242908][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.242908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.242908][ T10] [ 1763.244578][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1763.245292][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1763.245292][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.245292][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.245292][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.245292][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.245292][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.245292][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.245292][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.245292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.245292][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.245292][ T10] netlink_unicast+0x449/0x710 [ 1763.245292][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.245292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.245292][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.245292][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.245292][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.245292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.245292][ T10] [ 1763.247269][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1763.247269][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.247269][ T10] ipv6_find_idev+0x102/0x170 [ 1763.247269][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.247269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.247269][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.247269][ T10] netlink_unicast+0x449/0x710 [ 1763.247269][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.247269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.247269][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.247269][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.247269][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.247269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.247269][ T10] [ 1763.248795][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1763.248795][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.248795][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.248795][ T10] ipv6_find_idev+0x102/0x170 [ 1763.248795][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.248795][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.248795][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.248795][ T10] netlink_unicast+0x449/0x710 [ 1763.248795][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.248795][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.248795][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.248795][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.248795][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.248795][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.248795][ T10] [ 1763.250505][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1763.250824][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1763.250824][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.250824][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.250824][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.250824][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.250824][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.250824][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.250824][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.250824][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.250824][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.250824][ T10] netlink_unicast+0x449/0x710 [ 1763.250824][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.250824][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.250824][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.250824][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.250824][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.250824][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.250824][ T10] [ 1763.252808][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1763.252808][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.252808][ T10] ipv6_find_idev+0x102/0x170 [ 1763.252808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.252808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.252808][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.252808][ T10] netlink_unicast+0x449/0x710 [ 1763.252808][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.252808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.252808][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.252808][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.252808][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.252808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.252808][ T10] [ 1763.254342][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1763.254342][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.254342][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.254342][ T10] ipv6_find_idev+0x102/0x170 [ 1763.254342][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.254342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.254342][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.254342][ T10] netlink_unicast+0x449/0x710 [ 1763.254342][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.254342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.254342][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.254342][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.254342][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.254342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.254342][ T10] [ 1763.256054][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1763.256315][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1763.256315][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.256315][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.256315][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.256315][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.256315][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.256315][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.256315][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.256315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.256315][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.256315][ T10] netlink_unicast+0x449/0x710 [ 1763.256315][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.256315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.256315][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.256315][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.256315][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.256315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.256315][ T10] [ 1763.258369][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1763.258369][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.258369][ T10] ipv6_find_idev+0x102/0x170 [ 1763.258369][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.258369][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.258369][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.258369][ T10] netlink_unicast+0x449/0x710 [ 1763.258369][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.258369][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.258369][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.258369][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.258369][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.258369][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.258369][ T10] [ 1763.260147][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1763.260147][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.260147][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.260147][ T10] ipv6_find_idev+0x102/0x170 [ 1763.260147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.260147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.260147][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.260147][ T10] netlink_unicast+0x449/0x710 [ 1763.260147][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.260147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.260147][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.260147][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.260147][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.260147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.260147][ T10] [ 1763.262062][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1763.262332][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1763.262332][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.262332][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.262332][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.262332][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.262332][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.262332][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.262332][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.262332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.262332][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.262332][ T10] netlink_unicast+0x449/0x710 [ 1763.262332][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.262332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.262332][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.262332][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.262332][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.262332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.262332][ T10] [ 1763.264500][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1763.264500][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.264500][ T10] ipv6_find_idev+0x102/0x170 [ 1763.264500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.264500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.264500][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.264500][ T10] netlink_unicast+0x449/0x710 [ 1763.264500][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.264500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.264500][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.264500][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.264500][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.264500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.264500][ T10] [ 1763.266215][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1763.266215][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.266215][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.266215][ T10] ipv6_find_idev+0x102/0x170 [ 1763.266215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.266215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.266215][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.266215][ T10] netlink_unicast+0x449/0x710 [ 1763.266215][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.266215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.266215][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.266215][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.266215][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.266215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.266215][ T10] [ 1763.268113][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1763.268429][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1763.268429][ T10] netdev_get_by_index+0x5e/0x80 [ 1763.268429][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1763.268429][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1763.268429][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1763.268429][ T10] ipv6_add_addr+0x411/0x2000 [ 1763.268429][ T10] inet6_addr_add+0x30e/0xa40 [ 1763.268429][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1763.268429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.268429][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.268429][ T10] netlink_unicast+0x449/0x710 [ 1763.268429][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.268429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.268429][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.268429][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.268429][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.268429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.268429][ T10] [ 1763.270657][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1763.270657][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1763.270657][ T10] ipv6_find_idev+0x102/0x170 [ 1763.270657][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.270657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.270657][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.270657][ T10] netlink_unicast+0x449/0x710 [ 1763.270657][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.270657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.270657][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.270657][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.270657][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.270657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.270657][ T10] [ 1763.272394][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1763.272394][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1763.272394][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1763.272394][ T10] ipv6_find_idev+0x102/0x170 [ 1763.272394][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1763.272394][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1763.272394][ T10] netlink_rcv_skb+0x130/0x360 [ 1763.272394][ T10] netlink_unicast+0x449/0x710 [ 1763.272394][ T10] netlink_sendmsg+0x723/0xbe0 [ 1763.272394][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1763.272394][ T10] ___sys_sendmsg+0xee/0x170 [ 1763.272394][ T10] __sys_sendmsg+0xcd/0x170 [ 1763.272394][ T10] do_syscall_64+0xc6/0x1e0 [ 1763.272394][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1763.272394][ T10] [ 1773.515746][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1773.516191][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1773.516191][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.516191][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.516191][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.516191][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.516191][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.516191][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.516191][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.516191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.516191][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.516191][ T10] netlink_unicast+0x449/0x710 [ 1773.516191][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.516191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.516191][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.516191][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.516191][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.516191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.516191][ T10] [ 1773.518197][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1773.518197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.518197][ T10] ipv6_find_idev+0x102/0x170 [ 1773.518197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.518197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.518197][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.518197][ T10] netlink_unicast+0x449/0x710 [ 1773.518197][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.518197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.518197][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.518197][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.518197][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.518197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.518197][ T10] [ 1773.519737][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1773.519737][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.519737][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.519737][ T10] ipv6_find_idev+0x102/0x170 [ 1773.519737][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.519737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.519737][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.519737][ T10] netlink_unicast+0x449/0x710 [ 1773.519737][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.519737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.519737][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.519737][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.519737][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.519737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.519737][ T10] [ 1773.521426][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1773.521719][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1773.521719][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.521719][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.521719][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.521719][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.521719][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.521719][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.521719][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.521719][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.521719][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.521719][ T10] netlink_unicast+0x449/0x710 [ 1773.521719][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.521719][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.521719][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.521719][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.521719][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.521719][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.521719][ T10] [ 1773.523717][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1773.523717][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.523717][ T10] ipv6_find_idev+0x102/0x170 [ 1773.523717][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.523717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.523717][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.523717][ T10] netlink_unicast+0x449/0x710 [ 1773.523717][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.523717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.523717][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.523717][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.523717][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.523717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.523717][ T10] [ 1773.525258][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1773.525258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.525258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.525258][ T10] ipv6_find_idev+0x102/0x170 [ 1773.525258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.525258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.525258][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.525258][ T10] netlink_unicast+0x449/0x710 [ 1773.525258][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.525258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.525258][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.525258][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.525258][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.525258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.525258][ T10] [ 1773.526934][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1773.527216][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1773.527216][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.527216][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.527216][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.527216][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.527216][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.527216][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.527216][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.527216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.527216][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.527216][ T10] netlink_unicast+0x449/0x710 [ 1773.527216][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.527216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.527216][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.527216][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.527216][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.527216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.527216][ T10] [ 1773.529197][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1773.529197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.529197][ T10] ipv6_find_idev+0x102/0x170 [ 1773.529197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.529197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.529197][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.529197][ T10] netlink_unicast+0x449/0x710 [ 1773.529197][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.529197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.529197][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.529197][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.529197][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.529197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.529197][ T10] [ 1773.530723][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1773.530723][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.530723][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.530723][ T10] ipv6_find_idev+0x102/0x170 [ 1773.530723][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.530723][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.530723][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.530723][ T10] netlink_unicast+0x449/0x710 [ 1773.530723][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.530723][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.530723][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.530723][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.530723][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.530723][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.530723][ T10] [ 1773.532498][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1773.533194][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1773.533194][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.533194][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.533194][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.533194][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.533194][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.533194][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.533194][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.533194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.533194][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.533194][ T10] netlink_unicast+0x449/0x710 [ 1773.533194][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.533194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.533194][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.533194][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.533194][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.533194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.533194][ T10] [ 1773.535182][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1773.535182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.535182][ T10] ipv6_find_idev+0x102/0x170 [ 1773.535182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.535182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.535182][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.535182][ T10] netlink_unicast+0x449/0x710 [ 1773.535182][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.535182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.535182][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.535182][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.535182][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.535182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.535182][ T10] [ 1773.536731][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1773.536731][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.536731][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.536731][ T10] ipv6_find_idev+0x102/0x170 [ 1773.536731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.536731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.536731][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.536731][ T10] netlink_unicast+0x449/0x710 [ 1773.536731][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.536731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.536731][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.536731][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.536731][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.536731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.536731][ T10] [ 1773.538455][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1773.538777][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1773.538777][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.538777][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.538777][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.538777][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.538777][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.538777][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.538777][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.538777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.538777][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.538777][ T10] netlink_unicast+0x449/0x710 [ 1773.538777][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.538777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.538777][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.538777][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.538777][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.538777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.538777][ T10] [ 1773.540773][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1773.540773][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.540773][ T10] ipv6_find_idev+0x102/0x170 [ 1773.540773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.540773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.540773][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.540773][ T10] netlink_unicast+0x449/0x710 [ 1773.540773][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.540773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.540773][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.540773][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.540773][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.540773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.540773][ T10] [ 1773.542324][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1773.542324][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.542324][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.542324][ T10] ipv6_find_idev+0x102/0x170 [ 1773.542324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.542324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.542324][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.542324][ T10] netlink_unicast+0x449/0x710 [ 1773.542324][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.542324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.542324][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.542324][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.542324][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.542324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.542324][ T10] [ 1773.544044][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1773.544314][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1773.544314][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.544314][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.544314][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.544314][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.544314][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.544314][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.544314][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.544314][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.544314][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.544314][ T10] netlink_unicast+0x449/0x710 [ 1773.544314][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.544314][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.544314][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.544314][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.544314][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.544314][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.544314][ T10] [ 1773.546360][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1773.546360][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.546360][ T10] ipv6_find_idev+0x102/0x170 [ 1773.546360][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.546360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.546360][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.546360][ T10] netlink_unicast+0x449/0x710 [ 1773.546360][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.546360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.546360][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.546360][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.546360][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.546360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.546360][ T10] [ 1773.548070][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1773.548070][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.548070][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.548070][ T10] ipv6_find_idev+0x102/0x170 [ 1773.548070][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.548070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.548070][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.548070][ T10] netlink_unicast+0x449/0x710 [ 1773.548070][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.548070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.548070][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.548070][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.548070][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.548070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.548070][ T10] [ 1773.550020][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1773.550283][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1773.550283][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.550283][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.550283][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.550283][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.550283][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.550283][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.550283][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.550283][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.550283][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.550283][ T10] netlink_unicast+0x449/0x710 [ 1773.550283][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.550283][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.550283][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.550283][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.550283][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.550283][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.550283][ T10] [ 1773.552511][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1773.552511][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.552511][ T10] ipv6_find_idev+0x102/0x170 [ 1773.552511][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.552511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.552511][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.552511][ T10] netlink_unicast+0x449/0x710 [ 1773.552511][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.552511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.552511][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.552511][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.552511][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.552511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.552511][ T10] [ 1773.554217][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1773.554217][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.554217][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.554217][ T10] ipv6_find_idev+0x102/0x170 [ 1773.554217][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.554217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.554217][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.554217][ T10] netlink_unicast+0x449/0x710 [ 1773.554217][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.554217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.554217][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.554217][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.554217][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.554217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.554217][ T10] [ 1773.556110][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1773.556380][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1773.556380][ T10] netdev_get_by_index+0x5e/0x80 [ 1773.556380][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1773.556380][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1773.556380][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1773.556380][ T10] ipv6_add_addr+0x411/0x2000 [ 1773.556380][ T10] inet6_addr_add+0x30e/0xa40 [ 1773.556380][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1773.556380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.556380][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.556380][ T10] netlink_unicast+0x449/0x710 [ 1773.556380][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.556380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.556380][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.556380][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.556380][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.556380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.556380][ T10] [ 1773.558595][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1773.558595][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1773.558595][ T10] ipv6_find_idev+0x102/0x170 [ 1773.558595][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.558595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.558595][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.558595][ T10] netlink_unicast+0x449/0x710 [ 1773.558595][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.558595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.558595][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.558595][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.558595][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.558595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.558595][ T10] [ 1773.560362][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1773.560362][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1773.560362][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1773.560362][ T10] ipv6_find_idev+0x102/0x170 [ 1773.560362][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1773.560362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1773.560362][ T10] netlink_rcv_skb+0x130/0x360 [ 1773.560362][ T10] netlink_unicast+0x449/0x710 [ 1773.560362][ T10] netlink_sendmsg+0x723/0xbe0 [ 1773.560362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1773.560362][ T10] ___sys_sendmsg+0xee/0x170 [ 1773.560362][ T10] __sys_sendmsg+0xcd/0x170 [ 1773.560362][ T10] do_syscall_64+0xc6/0x1e0 [ 1773.560362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1773.560362][ T10] [ 1783.715752][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1783.716096][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1783.716096][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.716096][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.716096][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.716096][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.716096][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.716096][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.716096][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.716096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.716096][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.716096][ T10] netlink_unicast+0x449/0x710 [ 1783.716096][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.716096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.716096][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.716096][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.716096][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.716096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.716096][ T10] [ 1783.718248][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1783.718248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.718248][ T10] ipv6_find_idev+0x102/0x170 [ 1783.718248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.718248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.718248][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.718248][ T10] netlink_unicast+0x449/0x710 [ 1783.718248][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.718248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.718248][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.718248][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.718248][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.718248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.718248][ T10] [ 1783.719873][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1783.719873][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.719873][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.719873][ T10] ipv6_find_idev+0x102/0x170 [ 1783.719873][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.719873][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.719873][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.719873][ T10] netlink_unicast+0x449/0x710 [ 1783.719873][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.719873][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.719873][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.719873][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.719873][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.719873][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.719873][ T10] [ 1783.721690][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1783.721967][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1783.721967][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.721967][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.721967][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.721967][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.721967][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.721967][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.721967][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.721967][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.721967][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.721967][ T10] netlink_unicast+0x449/0x710 [ 1783.721967][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.721967][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.721967][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.721967][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.721967][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.721967][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.721967][ T10] [ 1783.724058][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1783.724058][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.724058][ T10] ipv6_find_idev+0x102/0x170 [ 1783.724058][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.724058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.724058][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.724058][ T10] netlink_unicast+0x449/0x710 [ 1783.724058][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.724058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.724058][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.724058][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.724058][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.724058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.724058][ T10] [ 1783.725682][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1783.725682][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.725682][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.725682][ T10] ipv6_find_idev+0x102/0x170 [ 1783.725682][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.725682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.725682][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.725682][ T10] netlink_unicast+0x449/0x710 [ 1783.725682][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.725682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.725682][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.725682][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.725682][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.725682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.725682][ T10] [ 1783.727443][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1783.727737][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1783.727737][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.727737][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.727737][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.727737][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.727737][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.727737][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.727737][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.727737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.727737][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.727737][ T10] netlink_unicast+0x449/0x710 [ 1783.727737][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.727737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.727737][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.727737][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.727737][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.727737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.727737][ T10] [ 1783.729857][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1783.729857][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.729857][ T10] ipv6_find_idev+0x102/0x170 [ 1783.729857][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.729857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.729857][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.729857][ T10] netlink_unicast+0x449/0x710 [ 1783.729857][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.729857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.729857][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.729857][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.729857][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.729857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.729857][ T10] [ 1783.731777][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1783.731777][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.731777][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.731777][ T10] ipv6_find_idev+0x102/0x170 [ 1783.731777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.731777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.731777][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.731777][ T10] netlink_unicast+0x449/0x710 [ 1783.731777][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.731777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.731777][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.731777][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.731777][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.731777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.731777][ T10] [ 1783.733592][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1783.734315][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1783.734315][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.734315][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.734315][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.734315][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.734315][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.734315][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.734315][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.734315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.734315][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.734315][ T10] netlink_unicast+0x449/0x710 [ 1783.734315][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.734315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.734315][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.734315][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.734315][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.734315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.734315][ T10] [ 1783.736342][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1783.736342][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.736342][ T10] ipv6_find_idev+0x102/0x170 [ 1783.736342][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.736342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.736342][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.736342][ T10] netlink_unicast+0x449/0x710 [ 1783.736342][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.736342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.736342][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.736342][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.736342][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.736342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.736342][ T10] [ 1783.737960][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1783.737960][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.737960][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.737960][ T10] ipv6_find_idev+0x102/0x170 [ 1783.737960][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.737960][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.737960][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.737960][ T10] netlink_unicast+0x449/0x710 [ 1783.737960][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.737960][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.737960][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.737960][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.737960][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.737960][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.737960][ T10] [ 1783.739961][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1783.740246][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1783.740246][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.740246][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.740246][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.740246][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.740246][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.740246][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.740246][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.740246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.740246][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.740246][ T10] netlink_unicast+0x449/0x710 [ 1783.740246][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.740246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.740246][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.740246][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.740246][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.740246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.740246][ T10] [ 1783.742391][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1783.742391][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.742391][ T10] ipv6_find_idev+0x102/0x170 [ 1783.742391][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.742391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.742391][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.742391][ T10] netlink_unicast+0x449/0x710 [ 1783.742391][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.742391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.742391][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.742391][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.742391][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.742391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.742391][ T10] [ 1783.744015][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1783.744015][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.744015][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.744015][ T10] ipv6_find_idev+0x102/0x170 [ 1783.744015][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.744015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.744015][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.744015][ T10] netlink_unicast+0x449/0x710 [ 1783.744015][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.744015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.744015][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.744015][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.744015][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.744015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.744015][ T10] [ 1783.745890][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1783.746169][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1783.746169][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.746169][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.746169][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.746169][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.746169][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.746169][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.746169][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.746169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.746169][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.746169][ T10] netlink_unicast+0x449/0x710 [ 1783.746169][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.746169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.746169][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.746169][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.746169][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.746169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.746169][ T10] [ 1783.748612][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1783.748612][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.748612][ T10] ipv6_find_idev+0x102/0x170 [ 1783.748612][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.748612][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.748612][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.748612][ T10] netlink_unicast+0x449/0x710 [ 1783.748612][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.748612][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.748612][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.748612][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.748612][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.748612][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.748612][ T10] [ 1783.750415][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1783.750415][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.750415][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.750415][ T10] ipv6_find_idev+0x102/0x170 [ 1783.750415][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.750415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.750415][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.750415][ T10] netlink_unicast+0x449/0x710 [ 1783.750415][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.750415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.750415][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.750415][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.750415][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.750415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.750415][ T10] [ 1783.752479][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1783.752807][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1783.752807][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.752807][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.752807][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.752807][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.752807][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.752807][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.752807][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.752807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.752807][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.752807][ T10] netlink_unicast+0x449/0x710 [ 1783.752807][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.752807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.752807][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.752807][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.752807][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.752807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.752807][ T10] [ 1783.754986][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1783.754986][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.754986][ T10] ipv6_find_idev+0x102/0x170 [ 1783.754986][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.754986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.754986][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.754986][ T10] netlink_unicast+0x449/0x710 [ 1783.754986][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.754986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.754986][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.754986][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.754986][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.754986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.754986][ T10] [ 1783.756754][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1783.756754][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.756754][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.756754][ T10] ipv6_find_idev+0x102/0x170 [ 1783.756754][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.756754][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.756754][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.756754][ T10] netlink_unicast+0x449/0x710 [ 1783.756754][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.756754][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.756754][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.756754][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.756754][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.756754][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.756754][ T10] [ 1783.758709][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1783.758992][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1783.758992][ T10] netdev_get_by_index+0x5e/0x80 [ 1783.758992][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1783.758992][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1783.758992][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1783.758992][ T10] ipv6_add_addr+0x411/0x2000 [ 1783.758992][ T10] inet6_addr_add+0x30e/0xa40 [ 1783.758992][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1783.758992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.758992][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.758992][ T10] netlink_unicast+0x449/0x710 [ 1783.758992][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.758992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.758992][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.758992][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.758992][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.758992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.758992][ T10] [ 1783.761161][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1783.761161][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1783.761161][ T10] ipv6_find_idev+0x102/0x170 [ 1783.761161][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.761161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.761161][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.761161][ T10] netlink_unicast+0x449/0x710 [ 1783.761161][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.761161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.761161][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.761161][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.761161][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.761161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.761161][ T10] [ 1783.762981][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1783.762981][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1783.762981][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1783.762981][ T10] ipv6_find_idev+0x102/0x170 [ 1783.762981][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1783.762981][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1783.762981][ T10] netlink_rcv_skb+0x130/0x360 [ 1783.762981][ T10] netlink_unicast+0x449/0x710 [ 1783.762981][ T10] netlink_sendmsg+0x723/0xbe0 [ 1783.762981][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1783.762981][ T10] ___sys_sendmsg+0xee/0x170 [ 1783.762981][ T10] __sys_sendmsg+0xcd/0x170 [ 1783.762981][ T10] do_syscall_64+0xc6/0x1e0 [ 1783.762981][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1783.762981][ T10] [ 1793.931749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1793.932165][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1793.932165][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.932165][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.932165][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.932165][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.932165][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.932165][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.932165][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.932165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.932165][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.932165][ T10] netlink_unicast+0x449/0x710 [ 1793.932165][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.932165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.932165][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.932165][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.932165][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.932165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.932165][ T10] [ 1793.934225][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1793.934225][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.934225][ T10] ipv6_find_idev+0x102/0x170 [ 1793.934225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.934225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.934225][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.934225][ T10] netlink_unicast+0x449/0x710 [ 1793.934225][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.934225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.934225][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.934225][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.934225][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.934225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.934225][ T10] [ 1793.935773][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1793.935773][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.935773][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.935773][ T10] ipv6_find_idev+0x102/0x170 [ 1793.935773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.935773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.935773][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.935773][ T10] netlink_unicast+0x449/0x710 [ 1793.935773][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.935773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.935773][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.935773][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.935773][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.935773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.935773][ T10] [ 1793.937477][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1793.937770][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1793.937770][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.937770][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.937770][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.937770][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.937770][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.937770][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.937770][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.937770][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.937770][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.937770][ T10] netlink_unicast+0x449/0x710 [ 1793.937770][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.937770][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.937770][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.937770][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.937770][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.937770][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.937770][ T10] [ 1793.939787][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1793.939787][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.939787][ T10] ipv6_find_idev+0x102/0x170 [ 1793.939787][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.939787][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.939787][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.939787][ T10] netlink_unicast+0x449/0x710 [ 1793.939787][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.939787][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.939787][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.939787][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.939787][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.939787][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.939787][ T10] [ 1793.941330][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1793.941330][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.941330][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.941330][ T10] ipv6_find_idev+0x102/0x170 [ 1793.941330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.941330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.941330][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.941330][ T10] netlink_unicast+0x449/0x710 [ 1793.941330][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.941330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.941330][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.941330][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.941330][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.941330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.941330][ T10] [ 1793.943041][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1793.943310][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1793.943310][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.943310][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.943310][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.943310][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.943310][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.943310][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.943310][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.943310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.943310][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.943310][ T10] netlink_unicast+0x449/0x710 [ 1793.943310][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.943310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.943310][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.943310][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.943310][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.943310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.943310][ T10] [ 1793.945317][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1793.945317][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.945317][ T10] ipv6_find_idev+0x102/0x170 [ 1793.945317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.945317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.945317][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.945317][ T10] netlink_unicast+0x449/0x710 [ 1793.945317][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.945317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.945317][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.945317][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.945317][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.945317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.945317][ T10] [ 1793.946870][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1793.946870][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.946870][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.946870][ T10] ipv6_find_idev+0x102/0x170 [ 1793.946870][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.946870][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.946870][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.946870][ T10] netlink_unicast+0x449/0x710 [ 1793.946870][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.946870][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.946870][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.946870][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.946870][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.946870][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.946870][ T10] [ 1793.948563][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1793.949275][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1793.949275][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.949275][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.949275][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.949275][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.949275][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.949275][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.949275][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.949275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.949275][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.949275][ T10] netlink_unicast+0x449/0x710 [ 1793.949275][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.949275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.949275][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.949275][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.949275][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.949275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.949275][ T10] [ 1793.951272][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1793.951272][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.951272][ T10] ipv6_find_idev+0x102/0x170 [ 1793.951272][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.951272][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.951272][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.951272][ T10] netlink_unicast+0x449/0x710 [ 1793.951272][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.951272][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.951272][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.951272][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.951272][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.951272][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.951272][ T10] [ 1793.952826][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1793.952826][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.952826][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.952826][ T10] ipv6_find_idev+0x102/0x170 [ 1793.952826][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.952826][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.952826][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.952826][ T10] netlink_unicast+0x449/0x710 [ 1793.952826][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.952826][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.952826][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.952826][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.952826][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.952826][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.952826][ T10] [ 1793.954550][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1793.954874][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1793.954874][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.954874][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.954874][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.954874][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.954874][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.954874][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.954874][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.954874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.954874][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.954874][ T10] netlink_unicast+0x449/0x710 [ 1793.954874][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.954874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.954874][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.954874][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.954874][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.954874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.954874][ T10] [ 1793.956877][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1793.956877][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.956877][ T10] ipv6_find_idev+0x102/0x170 [ 1793.956877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.956877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.956877][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.956877][ T10] netlink_unicast+0x449/0x710 [ 1793.956877][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.956877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.956877][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.956877][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.956877][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.956877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.956877][ T10] [ 1793.958431][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1793.958431][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.958431][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.958431][ T10] ipv6_find_idev+0x102/0x170 [ 1793.958431][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.958431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.958431][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.958431][ T10] netlink_unicast+0x449/0x710 [ 1793.958431][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.958431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.958431][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.958431][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.958431][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.958431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.958431][ T10] [ 1793.960170][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1793.960434][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1793.960434][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.960434][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.960434][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.960434][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.960434][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.960434][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.960434][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.960434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.960434][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.960434][ T10] netlink_unicast+0x449/0x710 [ 1793.960434][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.960434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.960434][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.960434][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.960434][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.960434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.960434][ T10] [ 1793.962514][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1793.962514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.962514][ T10] ipv6_find_idev+0x102/0x170 [ 1793.962514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.962514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.962514][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.962514][ T10] netlink_unicast+0x449/0x710 [ 1793.962514][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.962514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.962514][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.962514][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.962514][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.962514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.962514][ T10] [ 1793.964302][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1793.964302][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.964302][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.964302][ T10] ipv6_find_idev+0x102/0x170 [ 1793.964302][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.964302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.964302][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.964302][ T10] netlink_unicast+0x449/0x710 [ 1793.964302][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.964302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.964302][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.964302][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.964302][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.964302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.964302][ T10] [ 1793.966218][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1793.966485][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1793.966485][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.966485][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.966485][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.966485][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.966485][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.966485][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.966485][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.966485][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.966485][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.966485][ T10] netlink_unicast+0x449/0x710 [ 1793.966485][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.966485][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.966485][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.966485][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.966485][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.966485][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.966485][ T10] [ 1793.968742][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1793.968742][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.968742][ T10] ipv6_find_idev+0x102/0x170 [ 1793.968742][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.968742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.968742][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.968742][ T10] netlink_unicast+0x449/0x710 [ 1793.968742][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.968742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.968742][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.968742][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.968742][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.968742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.968742][ T10] [ 1793.970469][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1793.970469][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.970469][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.970469][ T10] ipv6_find_idev+0x102/0x170 [ 1793.970469][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.970469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.970469][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.970469][ T10] netlink_unicast+0x449/0x710 [ 1793.970469][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.970469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.970469][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.970469][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.970469][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.970469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.970469][ T10] [ 1793.972390][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1793.972663][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1793.972663][ T10] netdev_get_by_index+0x5e/0x80 [ 1793.972663][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1793.972663][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1793.972663][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1793.972663][ T10] ipv6_add_addr+0x411/0x2000 [ 1793.972663][ T10] inet6_addr_add+0x30e/0xa40 [ 1793.972663][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1793.972663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.972663][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.972663][ T10] netlink_unicast+0x449/0x710 [ 1793.972663][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.972663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.972663][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.972663][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.972663][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.972663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.972663][ T10] [ 1793.974906][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1793.974906][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1793.974906][ T10] ipv6_find_idev+0x102/0x170 [ 1793.974906][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.974906][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.974906][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.974906][ T10] netlink_unicast+0x449/0x710 [ 1793.974906][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.974906][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.974906][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.974906][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.974906][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.974906][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.974906][ T10] [ 1793.976628][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1793.976628][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1793.976628][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1793.976628][ T10] ipv6_find_idev+0x102/0x170 [ 1793.976628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1793.976628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1793.976628][ T10] netlink_rcv_skb+0x130/0x360 [ 1793.976628][ T10] netlink_unicast+0x449/0x710 [ 1793.976628][ T10] netlink_sendmsg+0x723/0xbe0 [ 1793.976628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1793.976628][ T10] ___sys_sendmsg+0xee/0x170 [ 1793.976628][ T10] __sys_sendmsg+0xcd/0x170 [ 1793.976628][ T10] do_syscall_64+0xc6/0x1e0 [ 1793.976628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1793.976628][ T10] [ 1804.227751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1804.228183][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1804.228183][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.228183][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.228183][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.228183][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.228183][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.228183][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.228183][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.228183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.228183][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.228183][ T10] netlink_unicast+0x449/0x710 [ 1804.228183][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.228183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.228183][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.228183][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.228183][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.228183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.228183][ T10] [ 1804.230230][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1804.230230][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.230230][ T10] ipv6_find_idev+0x102/0x170 [ 1804.230230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.230230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.230230][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.230230][ T10] netlink_unicast+0x449/0x710 [ 1804.230230][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.230230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.230230][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.230230][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.230230][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.230230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.230230][ T10] [ 1804.231808][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1804.231808][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.231808][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.231808][ T10] ipv6_find_idev+0x102/0x170 [ 1804.231808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.231808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.231808][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.231808][ T10] netlink_unicast+0x449/0x710 [ 1804.231808][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.231808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.231808][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.231808][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.231808][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.231808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.231808][ T10] [ 1804.233512][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1804.233802][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1804.233802][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.233802][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.233802][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.233802][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.233802][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.233802][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.233802][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.233802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.233802][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.233802][ T10] netlink_unicast+0x449/0x710 [ 1804.233802][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.233802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.233802][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.233802][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.233802][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.233802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.233802][ T10] [ 1804.235836][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1804.235836][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.235836][ T10] ipv6_find_idev+0x102/0x170 [ 1804.235836][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.235836][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.235836][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.235836][ T10] netlink_unicast+0x449/0x710 [ 1804.235836][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.235836][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.235836][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.235836][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.235836][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.235836][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.235836][ T10] [ 1804.237366][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1804.237366][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.237366][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.237366][ T10] ipv6_find_idev+0x102/0x170 [ 1804.237366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.237366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.237366][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.237366][ T10] netlink_unicast+0x449/0x710 [ 1804.237366][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.237366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.237366][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.237366][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.237366][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.237366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.237366][ T10] [ 1804.239044][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1804.239309][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1804.239309][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.239309][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.239309][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.239309][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.239309][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.239309][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.239309][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.239309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.239309][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.239309][ T10] netlink_unicast+0x449/0x710 [ 1804.239309][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.239309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.239309][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.239309][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.239309][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.239309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.239309][ T10] [ 1804.241297][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1804.241297][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.241297][ T10] ipv6_find_idev+0x102/0x170 [ 1804.241297][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.241297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.241297][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.241297][ T10] netlink_unicast+0x449/0x710 [ 1804.241297][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.241297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.241297][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.241297][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.241297][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.241297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.241297][ T10] [ 1804.242828][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1804.242828][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.242828][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.242828][ T10] ipv6_find_idev+0x102/0x170 [ 1804.242828][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.242828][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.242828][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.242828][ T10] netlink_unicast+0x449/0x710 [ 1804.242828][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.242828][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.242828][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.242828][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.242828][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.242828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.242828][ T10] [ 1804.244488][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1804.245215][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1804.245215][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.245215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.245215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.245215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.245215][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.245215][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.245215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.245215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.245215][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.245215][ T10] netlink_unicast+0x449/0x710 [ 1804.245215][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.245215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.245215][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.245215][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.245215][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.245215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.245215][ T10] [ 1804.247189][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1804.247189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.247189][ T10] ipv6_find_idev+0x102/0x170 [ 1804.247189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.247189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.247189][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.247189][ T10] netlink_unicast+0x449/0x710 [ 1804.247189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.247189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.247189][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.247189][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.247189][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.247189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.247189][ T10] [ 1804.248716][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1804.248716][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.248716][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.248716][ T10] ipv6_find_idev+0x102/0x170 [ 1804.248716][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.248716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.248716][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.248716][ T10] netlink_unicast+0x449/0x710 [ 1804.248716][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.248716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.248716][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.248716][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.248716][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.248716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.248716][ T10] [ 1804.250426][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1804.250752][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1804.250752][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.250752][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.250752][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.250752][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.250752][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.250752][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.250752][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.250752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.250752][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.250752][ T10] netlink_unicast+0x449/0x710 [ 1804.250752][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.250752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.250752][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.250752][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.250752][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.250752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.250752][ T10] [ 1804.252745][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1804.252745][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.252745][ T10] ipv6_find_idev+0x102/0x170 [ 1804.252745][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.252745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.252745][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.252745][ T10] netlink_unicast+0x449/0x710 [ 1804.252745][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.252745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.252745][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.252745][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.252745][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.252745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.252745][ T10] [ 1804.254281][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1804.254281][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.254281][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.254281][ T10] ipv6_find_idev+0x102/0x170 [ 1804.254281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.254281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.254281][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.254281][ T10] netlink_unicast+0x449/0x710 [ 1804.254281][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.254281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.254281][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.254281][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.254281][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.254281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.254281][ T10] [ 1804.256002][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1804.256272][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1804.256272][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.256272][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.256272][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.256272][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.256272][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.256272][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.256272][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.256272][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.256272][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.256272][ T10] netlink_unicast+0x449/0x710 [ 1804.256272][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.256272][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.256272][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.256272][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.256272][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.256272][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.256272][ T10] [ 1804.258319][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1804.258319][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.258319][ T10] ipv6_find_idev+0x102/0x170 [ 1804.258319][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.258319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.258319][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.258319][ T10] netlink_unicast+0x449/0x710 [ 1804.258319][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.258319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.258319][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.258319][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.258319][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.258319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.258319][ T10] [ 1804.260040][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1804.260040][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.260040][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.260040][ T10] ipv6_find_idev+0x102/0x170 [ 1804.260040][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.260040][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.260040][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.260040][ T10] netlink_unicast+0x449/0x710 [ 1804.260040][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.260040][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.260040][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.260040][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.260040][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.260040][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.260040][ T10] [ 1804.262072][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1804.262350][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1804.262350][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.262350][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.262350][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.262350][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.262350][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.262350][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.262350][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.262350][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.262350][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.262350][ T10] netlink_unicast+0x449/0x710 [ 1804.262350][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.262350][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.262350][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.262350][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.262350][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.262350][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.262350][ T10] [ 1804.264525][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1804.264525][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.264525][ T10] ipv6_find_idev+0x102/0x170 [ 1804.264525][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.264525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.264525][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.264525][ T10] netlink_unicast+0x449/0x710 [ 1804.264525][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.264525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.264525][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.264525][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.264525][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.264525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.264525][ T10] [ 1804.266249][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1804.266249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.266249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.266249][ T10] ipv6_find_idev+0x102/0x170 [ 1804.266249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.266249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.266249][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.266249][ T10] netlink_unicast+0x449/0x710 [ 1804.266249][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.266249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.266249][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.266249][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.266249][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.266249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.266249][ T10] [ 1804.268182][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1804.268500][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1804.268500][ T10] netdev_get_by_index+0x5e/0x80 [ 1804.268500][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1804.268500][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1804.268500][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1804.268500][ T10] ipv6_add_addr+0x411/0x2000 [ 1804.268500][ T10] inet6_addr_add+0x30e/0xa40 [ 1804.268500][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1804.268500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.268500][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.268500][ T10] netlink_unicast+0x449/0x710 [ 1804.268500][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.268500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.268500][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.268500][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.268500][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.268500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.268500][ T10] [ 1804.270687][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1804.270687][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1804.270687][ T10] ipv6_find_idev+0x102/0x170 [ 1804.270687][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.270687][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.270687][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.270687][ T10] netlink_unicast+0x449/0x710 [ 1804.270687][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.270687][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.270687][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.270687][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.270687][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.270687][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.270687][ T10] [ 1804.272488][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1804.272488][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1804.272488][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1804.272488][ T10] ipv6_find_idev+0x102/0x170 [ 1804.272488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1804.272488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1804.272488][ T10] netlink_rcv_skb+0x130/0x360 [ 1804.272488][ T10] netlink_unicast+0x449/0x710 [ 1804.272488][ T10] netlink_sendmsg+0x723/0xbe0 [ 1804.272488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1804.272488][ T10] ___sys_sendmsg+0xee/0x170 [ 1804.272488][ T10] __sys_sendmsg+0xcd/0x170 [ 1804.272488][ T10] do_syscall_64+0xc6/0x1e0 [ 1804.272488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1804.272488][ T10] [ 1814.523788][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1814.524312][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1814.524312][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.524312][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.524312][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.524312][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.524312][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.524312][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.524312][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.524312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.524312][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.524312][ T10] netlink_unicast+0x449/0x710 [ 1814.524312][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.524312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.524312][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.524312][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.524312][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.524312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.524312][ T10] [ 1814.526649][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1814.526649][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.526649][ T10] ipv6_find_idev+0x102/0x170 [ 1814.526649][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.526649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.526649][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.526649][ T10] netlink_unicast+0x449/0x710 [ 1814.526649][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.526649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.526649][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.526649][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.526649][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.526649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.526649][ T10] [ 1814.528397][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1814.528397][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.528397][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.528397][ T10] ipv6_find_idev+0x102/0x170 [ 1814.528397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.528397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.528397][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.528397][ T10] netlink_unicast+0x449/0x710 [ 1814.528397][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.528397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.528397][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.528397][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.528397][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.528397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.528397][ T10] [ 1814.530329][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1814.530649][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1814.530649][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.530649][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.530649][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.530649][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.530649][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.530649][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.530649][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.530649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.530649][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.530649][ T10] netlink_unicast+0x449/0x710 [ 1814.530649][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.530649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.530649][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.530649][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.530649][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.530649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.530649][ T10] [ 1814.532881][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1814.532881][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.532881][ T10] ipv6_find_idev+0x102/0x170 [ 1814.532881][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.532881][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.532881][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.532881][ T10] netlink_unicast+0x449/0x710 [ 1814.532881][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.532881][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.532881][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.532881][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.532881][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.532881][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.532881][ T10] [ 1814.534588][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1814.534588][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.534588][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.534588][ T10] ipv6_find_idev+0x102/0x170 [ 1814.534588][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.534588][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.534588][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.534588][ T10] netlink_unicast+0x449/0x710 [ 1814.534588][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.534588][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.534588][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.534588][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.534588][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.534588][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.534588][ T10] [ 1814.536476][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1814.536790][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1814.536790][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.536790][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.536790][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.536790][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.536790][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.536790][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.536790][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.536790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.536790][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.536790][ T10] netlink_unicast+0x449/0x710 [ 1814.536790][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.536790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.536790][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.536790][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.536790][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.536790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.536790][ T10] [ 1814.539027][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1814.539027][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.539027][ T10] ipv6_find_idev+0x102/0x170 [ 1814.539027][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.539027][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.539027][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.539027][ T10] netlink_unicast+0x449/0x710 [ 1814.539027][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.539027][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.539027][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.539027][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.539027][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.539027][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.539027][ T10] [ 1814.540758][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1814.540758][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.540758][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.540758][ T10] ipv6_find_idev+0x102/0x170 [ 1814.540758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.540758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.540758][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.540758][ T10] netlink_unicast+0x449/0x710 [ 1814.540758][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.540758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.540758][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.540758][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.540758][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.540758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.540758][ T10] [ 1814.542669][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1814.542983][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1814.542983][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.542983][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.542983][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.542983][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.542983][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.542983][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.542983][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.542983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.542983][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.542983][ T10] netlink_unicast+0x449/0x710 [ 1814.542983][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.542983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.542983][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.542983][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.542983][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.542983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.542983][ T10] [ 1814.545198][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1814.545198][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.545198][ T10] ipv6_find_idev+0x102/0x170 [ 1814.545198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.545198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.545198][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.545198][ T10] netlink_unicast+0x449/0x710 [ 1814.545198][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.545198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.545198][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.545198][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.545198][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.545198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.545198][ T10] [ 1814.546914][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1814.546914][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.546914][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.546914][ T10] ipv6_find_idev+0x102/0x170 [ 1814.546914][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.546914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.546914][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.546914][ T10] netlink_unicast+0x449/0x710 [ 1814.546914][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.546914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.546914][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.546914][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.546914][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.546914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.546914][ T10] [ 1814.549212][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1814.549860][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1814.549860][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.549860][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.549860][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.549860][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.549860][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.549860][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.549860][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.549860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.549860][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.549860][ T10] netlink_unicast+0x449/0x710 [ 1814.549860][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.549860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.549860][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.549860][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.549860][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.549860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.549860][ T10] [ 1814.552103][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1814.552103][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.552103][ T10] ipv6_find_idev+0x102/0x170 [ 1814.552103][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.552103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.552103][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.552103][ T10] netlink_unicast+0x449/0x710 [ 1814.552103][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.552103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.552103][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.552103][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.552103][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.552103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.552103][ T10] [ 1814.553824][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1814.553824][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.553824][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.553824][ T10] ipv6_find_idev+0x102/0x170 [ 1814.553824][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.553824][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.553824][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.553824][ T10] netlink_unicast+0x449/0x710 [ 1814.553824][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.553824][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.553824][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.553824][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.553824][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.553824][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.553824][ T10] [ 1814.555705][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1814.556001][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1814.556001][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.556001][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.556001][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.556001][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.556001][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.556001][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.556001][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.556001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.556001][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.556001][ T10] netlink_unicast+0x449/0x710 [ 1814.556001][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.556001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.556001][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.556001][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.556001][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.556001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.556001][ T10] [ 1814.558215][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1814.558215][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.558215][ T10] ipv6_find_idev+0x102/0x170 [ 1814.558215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.558215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.558215][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.558215][ T10] netlink_unicast+0x449/0x710 [ 1814.558215][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.558215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.558215][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.558215][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.558215][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.558215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.558215][ T10] [ 1814.559992][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1814.559992][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.559992][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.559992][ T10] ipv6_find_idev+0x102/0x170 [ 1814.559992][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.559992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.559992][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.559992][ T10] netlink_unicast+0x449/0x710 [ 1814.559992][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.559992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.559992][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.559992][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.559992][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.559992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.559992][ T10] [ 1814.562142][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1814.562480][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1814.562480][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.562480][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.562480][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.562480][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.562480][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.562480][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.562480][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.562480][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.562480][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.562480][ T10] netlink_unicast+0x449/0x710 [ 1814.562480][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.562480][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.562480][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.562480][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.562480][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.562480][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.562480][ T10] [ 1814.564911][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1814.564911][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.564911][ T10] ipv6_find_idev+0x102/0x170 [ 1814.564911][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.564911][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.564911][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.564911][ T10] netlink_unicast+0x449/0x710 [ 1814.564911][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.564911][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.564911][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.564911][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.564911][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.564911][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.564911][ T10] [ 1814.566878][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1814.566878][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.566878][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.566878][ T10] ipv6_find_idev+0x102/0x170 [ 1814.566878][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.566878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.566878][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.566878][ T10] netlink_unicast+0x449/0x710 [ 1814.566878][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.566878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.566878][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.566878][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.566878][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.566878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.566878][ T10] [ 1814.569005][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1814.569353][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1814.569353][ T10] netdev_get_by_index+0x5e/0x80 [ 1814.569353][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1814.569353][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1814.569353][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1814.569353][ T10] ipv6_add_addr+0x411/0x2000 [ 1814.569353][ T10] inet6_addr_add+0x30e/0xa40 [ 1814.569353][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1814.569353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.569353][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.569353][ T10] netlink_unicast+0x449/0x710 [ 1814.569353][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.569353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.569353][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.569353][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.569353][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.569353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.569353][ T10] [ 1814.571771][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1814.571771][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1814.571771][ T10] ipv6_find_idev+0x102/0x170 [ 1814.571771][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.571771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.571771][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.571771][ T10] netlink_unicast+0x449/0x710 [ 1814.571771][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.571771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.571771][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.571771][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.571771][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.571771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.571771][ T10] [ 1814.573666][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1814.573666][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1814.573666][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1814.573666][ T10] ipv6_find_idev+0x102/0x170 [ 1814.573666][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1814.573666][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1814.573666][ T10] netlink_rcv_skb+0x130/0x360 [ 1814.573666][ T10] netlink_unicast+0x449/0x710 [ 1814.573666][ T10] netlink_sendmsg+0x723/0xbe0 [ 1814.573666][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1814.573666][ T10] ___sys_sendmsg+0xee/0x170 [ 1814.573666][ T10] __sys_sendmsg+0xcd/0x170 [ 1814.573666][ T10] do_syscall_64+0xc6/0x1e0 [ 1814.573666][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1814.573666][ T10] [ 1824.659702][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1824.660128][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1824.660128][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.660128][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.660128][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.660128][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.660128][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.660128][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.660128][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.660128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.660128][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.660128][ T10] netlink_unicast+0x449/0x710 [ 1824.660128][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.660128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.660128][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.660128][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.660128][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.660128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.660128][ T10] [ 1824.662906][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1824.662906][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.662906][ T10] ipv6_find_idev+0x102/0x170 [ 1824.662906][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.662906][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.662906][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.662906][ T10] netlink_unicast+0x449/0x710 [ 1824.662906][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.662906][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.662906][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.662906][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.662906][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.662906][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.662906][ T10] [ 1824.664823][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1824.664823][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.664823][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.664823][ T10] ipv6_find_idev+0x102/0x170 [ 1824.664823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.664823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.664823][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.664823][ T10] netlink_unicast+0x449/0x710 [ 1824.664823][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.664823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.664823][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.664823][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.664823][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.664823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.664823][ T10] [ 1824.667264][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1824.667593][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1824.667593][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.667593][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.667593][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.667593][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.667593][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.667593][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.667593][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.667593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.667593][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.667593][ T10] netlink_unicast+0x449/0x710 [ 1824.667593][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.667593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.667593][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.667593][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.667593][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.667593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.667593][ T10] [ 1824.669940][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1824.669940][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.669940][ T10] ipv6_find_idev+0x102/0x170 [ 1824.669940][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.669940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.669940][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.669940][ T10] netlink_unicast+0x449/0x710 [ 1824.669940][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.669940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.669940][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.669940][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.669940][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.669940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.669940][ T10] [ 1824.671755][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1824.671755][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.671755][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.671755][ T10] ipv6_find_idev+0x102/0x170 [ 1824.671755][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.671755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.671755][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.671755][ T10] netlink_unicast+0x449/0x710 [ 1824.671755][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.671755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.671755][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.671755][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.671755][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.671755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.671755][ T10] [ 1824.673814][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1824.674135][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1824.674135][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.674135][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.674135][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.674135][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.674135][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.674135][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.674135][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.674135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.674135][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.674135][ T10] netlink_unicast+0x449/0x710 [ 1824.674135][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.674135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.674135][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.674135][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.674135][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.674135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.674135][ T10] [ 1824.676637][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1824.676637][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.676637][ T10] ipv6_find_idev+0x102/0x170 [ 1824.676637][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.676637][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.676637][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.676637][ T10] netlink_unicast+0x449/0x710 [ 1824.676637][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.676637][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.676637][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.676637][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.676637][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.676637][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.676637][ T10] [ 1824.678527][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1824.678527][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.678527][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.678527][ T10] ipv6_find_idev+0x102/0x170 [ 1824.678527][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.678527][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.678527][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.678527][ T10] netlink_unicast+0x449/0x710 [ 1824.678527][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.678527][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.678527][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.678527][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.678527][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.678527][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.678527][ T10] [ 1824.680584][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1824.680920][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1824.680920][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.680920][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.680920][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.680920][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.680920][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.680920][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.680920][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.680920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.680920][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.680920][ T10] netlink_unicast+0x449/0x710 [ 1824.680920][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.680920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.680920][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.680920][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.680920][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.680920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.680920][ T10] [ 1824.683409][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1824.683409][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.683409][ T10] ipv6_find_idev+0x102/0x170 [ 1824.683409][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.683409][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.683409][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.683409][ T10] netlink_unicast+0x449/0x710 [ 1824.683409][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.683409][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.683409][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.683409][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.683409][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.683409][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.683409][ T10] [ 1824.685529][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1824.685529][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.685529][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.685529][ T10] ipv6_find_idev+0x102/0x170 [ 1824.685529][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.685529][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.685529][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.685529][ T10] netlink_unicast+0x449/0x710 [ 1824.685529][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.685529][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.685529][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.685529][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.685529][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.685529][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.685529][ T10] [ 1824.687743][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1824.688053][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1824.688053][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.688053][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.688053][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.688053][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.688053][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.688053][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.688053][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.688053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.688053][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.688053][ T10] netlink_unicast+0x449/0x710 [ 1824.688053][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.688053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.688053][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.688053][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.688053][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.688053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.688053][ T10] [ 1824.690648][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1824.690648][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.690648][ T10] ipv6_find_idev+0x102/0x170 [ 1824.690648][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.690648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.690648][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.690648][ T10] netlink_unicast+0x449/0x710 [ 1824.690648][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.690648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.690648][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.690648][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.690648][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.690648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.690648][ T10] [ 1824.693054][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1824.693054][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.693054][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.693054][ T10] ipv6_find_idev+0x102/0x170 [ 1824.693054][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.693054][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.693054][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.693054][ T10] netlink_unicast+0x449/0x710 [ 1824.693054][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.693054][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.693054][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.693054][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.693054][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.693054][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.693054][ T10] [ 1824.695732][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1824.696576][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1824.696576][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.696576][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.696576][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.696576][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.696576][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.696576][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.696576][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.696576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.696576][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.696576][ T10] netlink_unicast+0x449/0x710 [ 1824.696576][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.696576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.696576][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.696576][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.696576][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.696576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.696576][ T10] [ 1824.699017][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1824.699017][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.699017][ T10] ipv6_find_idev+0x102/0x170 [ 1824.699017][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.699017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.699017][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.699017][ T10] netlink_unicast+0x449/0x710 [ 1824.699017][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.699017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.699017][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.699017][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.699017][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.699017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.699017][ T10] [ 1824.700922][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1824.700922][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.700922][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.700922][ T10] ipv6_find_idev+0x102/0x170 [ 1824.700922][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.700922][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.700922][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.700922][ T10] netlink_unicast+0x449/0x710 [ 1824.700922][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.700922][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.700922][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.700922][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.700922][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.700922][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.700922][ T10] [ 1824.703075][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1824.703475][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1824.703475][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.703475][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.703475][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.703475][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.703475][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.703475][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.703475][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.703475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.703475][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.703475][ T10] netlink_unicast+0x449/0x710 [ 1824.703475][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.703475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.703475][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.703475][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.703475][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.703475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.703475][ T10] [ 1824.705882][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1824.705882][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.705882][ T10] ipv6_find_idev+0x102/0x170 [ 1824.705882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.705882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.705882][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.705882][ T10] netlink_unicast+0x449/0x710 [ 1824.705882][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.705882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.705882][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.705882][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.705882][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.705882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.705882][ T10] [ 1824.707687][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1824.707687][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.707687][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.707687][ T10] ipv6_find_idev+0x102/0x170 [ 1824.707687][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.707687][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.707687][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.707687][ T10] netlink_unicast+0x449/0x710 [ 1824.707687][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.707687][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.707687][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.707687][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.707687][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.707687][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.707687][ T10] [ 1824.709697][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1824.710057][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1824.710057][ T10] netdev_get_by_index+0x5e/0x80 [ 1824.710057][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1824.710057][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1824.710057][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1824.710057][ T10] ipv6_add_addr+0x411/0x2000 [ 1824.710057][ T10] inet6_addr_add+0x30e/0xa40 [ 1824.710057][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1824.710057][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.710057][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.710057][ T10] netlink_unicast+0x449/0x710 [ 1824.710057][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.710057][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.710057][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.710057][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.710057][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.710057][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.710057][ T10] [ 1824.712462][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1824.712462][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1824.712462][ T10] ipv6_find_idev+0x102/0x170 [ 1824.712462][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.712462][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.712462][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.712462][ T10] netlink_unicast+0x449/0x710 [ 1824.712462][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.712462][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.712462][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.712462][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.712462][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.712462][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.712462][ T10] [ 1824.714324][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1824.714324][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1824.714324][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1824.714324][ T10] ipv6_find_idev+0x102/0x170 [ 1824.714324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1824.714324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1824.714324][ T10] netlink_rcv_skb+0x130/0x360 [ 1824.714324][ T10] netlink_unicast+0x449/0x710 [ 1824.714324][ T10] netlink_sendmsg+0x723/0xbe0 [ 1824.714324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1824.714324][ T10] ___sys_sendmsg+0xee/0x170 [ 1824.714324][ T10] __sys_sendmsg+0xcd/0x170 [ 1824.714324][ T10] do_syscall_64+0xc6/0x1e0 [ 1824.714324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1824.714324][ T10] [ 1834.891694][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1834.892129][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1834.892129][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.892129][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.892129][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.892129][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.892129][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.892129][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.892129][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.892129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.892129][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.892129][ T10] netlink_unicast+0x449/0x710 [ 1834.892129][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.892129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.892129][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.892129][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.892129][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.892129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.892129][ T10] [ 1834.894181][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1834.894181][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.894181][ T10] ipv6_find_idev+0x102/0x170 [ 1834.894181][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.894181][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.894181][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.894181][ T10] netlink_unicast+0x449/0x710 [ 1834.894181][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.894181][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.894181][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.894181][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.894181][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.894181][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.894181][ T10] [ 1834.895750][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1834.895750][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.895750][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.895750][ T10] ipv6_find_idev+0x102/0x170 [ 1834.895750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.895750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.895750][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.895750][ T10] netlink_unicast+0x449/0x710 [ 1834.895750][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.895750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.895750][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.895750][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.895750][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.895750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.895750][ T10] [ 1834.897455][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1834.897738][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1834.897738][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.897738][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.897738][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.897738][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.897738][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.897738][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.897738][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.897738][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.897738][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.897738][ T10] netlink_unicast+0x449/0x710 [ 1834.897738][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.897738][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.897738][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.897738][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.897738][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.897738][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.897738][ T10] [ 1834.899757][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1834.899757][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.899757][ T10] ipv6_find_idev+0x102/0x170 [ 1834.899757][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.899757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.899757][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.899757][ T10] netlink_unicast+0x449/0x710 [ 1834.899757][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.899757][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.899757][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.899757][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.899757][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.899757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.899757][ T10] [ 1834.901315][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1834.901315][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.901315][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.901315][ T10] ipv6_find_idev+0x102/0x170 [ 1834.901315][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.901315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.901315][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.901315][ T10] netlink_unicast+0x449/0x710 [ 1834.901315][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.901315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.901315][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.901315][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.901315][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.901315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.901315][ T10] [ 1834.903022][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1834.903304][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1834.903304][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.903304][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.903304][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.903304][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.903304][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.903304][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.903304][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.903304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.903304][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.903304][ T10] netlink_unicast+0x449/0x710 [ 1834.903304][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.903304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.903304][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.903304][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.903304][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.903304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.903304][ T10] [ 1834.905319][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1834.905319][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.905319][ T10] ipv6_find_idev+0x102/0x170 [ 1834.905319][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.905319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.905319][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.905319][ T10] netlink_unicast+0x449/0x710 [ 1834.905319][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.905319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.905319][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.905319][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.905319][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.905319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.905319][ T10] [ 1834.906876][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1834.906876][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.906876][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.906876][ T10] ipv6_find_idev+0x102/0x170 [ 1834.906876][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.906876][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.906876][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.906876][ T10] netlink_unicast+0x449/0x710 [ 1834.906876][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.906876][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.906876][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.906876][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.906876][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.906876][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.906876][ T10] [ 1834.908579][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1834.909294][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1834.909294][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.909294][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.909294][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.909294][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.909294][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.909294][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.909294][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.909294][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.909294][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.909294][ T10] netlink_unicast+0x449/0x710 [ 1834.909294][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.909294][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.909294][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.909294][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.909294][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.909294][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.909294][ T10] [ 1834.911324][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1834.911324][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.911324][ T10] ipv6_find_idev+0x102/0x170 [ 1834.911324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.911324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.911324][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.911324][ T10] netlink_unicast+0x449/0x710 [ 1834.911324][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.911324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.911324][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.911324][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.911324][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.911324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.911324][ T10] [ 1834.912879][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1834.912879][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.912879][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.912879][ T10] ipv6_find_idev+0x102/0x170 [ 1834.912879][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.912879][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.912879][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.912879][ T10] netlink_unicast+0x449/0x710 [ 1834.912879][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.912879][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.912879][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.912879][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.912879][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.912879][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.912879][ T10] [ 1834.914655][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1834.914927][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1834.914927][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.914927][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.914927][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.914927][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.914927][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.914927][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.914927][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.914927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.914927][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.914927][ T10] netlink_unicast+0x449/0x710 [ 1834.914927][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.914927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.914927][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.914927][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.914927][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.914927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.914927][ T10] [ 1834.916923][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1834.916923][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.916923][ T10] ipv6_find_idev+0x102/0x170 [ 1834.916923][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.916923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.916923][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.916923][ T10] netlink_unicast+0x449/0x710 [ 1834.916923][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.916923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.916923][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.916923][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.916923][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.916923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.916923][ T10] [ 1834.918461][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1834.918461][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.918461][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.918461][ T10] ipv6_find_idev+0x102/0x170 [ 1834.918461][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.918461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.918461][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.918461][ T10] netlink_unicast+0x449/0x710 [ 1834.918461][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.918461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.918461][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.918461][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.918461][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.918461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.918461][ T10] [ 1834.920177][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1834.920443][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1834.920443][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.920443][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.920443][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.920443][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.920443][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.920443][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.920443][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.920443][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.920443][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.920443][ T10] netlink_unicast+0x449/0x710 [ 1834.920443][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.920443][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.920443][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.920443][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.920443][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.920443][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.920443][ T10] [ 1834.922571][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1834.922571][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.922571][ T10] ipv6_find_idev+0x102/0x170 [ 1834.922571][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.922571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.922571][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.922571][ T10] netlink_unicast+0x449/0x710 [ 1834.922571][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.922571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.922571][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.922571][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.922571][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.922571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.922571][ T10] [ 1834.924287][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1834.924287][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.924287][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.924287][ T10] ipv6_find_idev+0x102/0x170 [ 1834.924287][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.924287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.924287][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.924287][ T10] netlink_unicast+0x449/0x710 [ 1834.924287][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.924287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.924287][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.924287][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.924287][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.924287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.924287][ T10] [ 1834.926254][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1834.926522][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1834.926522][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.926522][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.926522][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.926522][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.926522][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.926522][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.926522][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.926522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.926522][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.926522][ T10] netlink_unicast+0x449/0x710 [ 1834.926522][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.926522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.926522][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.926522][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.926522][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.926522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.926522][ T10] [ 1834.928756][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1834.928756][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.928756][ T10] ipv6_find_idev+0x102/0x170 [ 1834.928756][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.928756][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.928756][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.928756][ T10] netlink_unicast+0x449/0x710 [ 1834.928756][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.928756][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.928756][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.928756][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.928756][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.928756][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.928756][ T10] [ 1834.930472][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1834.930472][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.930472][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.930472][ T10] ipv6_find_idev+0x102/0x170 [ 1834.930472][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.930472][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.930472][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.930472][ T10] netlink_unicast+0x449/0x710 [ 1834.930472][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.930472][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.930472][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.930472][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.930472][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.930472][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.930472][ T10] [ 1834.932385][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1834.932657][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1834.932657][ T10] netdev_get_by_index+0x5e/0x80 [ 1834.932657][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1834.932657][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1834.932657][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1834.932657][ T10] ipv6_add_addr+0x411/0x2000 [ 1834.932657][ T10] inet6_addr_add+0x30e/0xa40 [ 1834.932657][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1834.932657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.932657][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.932657][ T10] netlink_unicast+0x449/0x710 [ 1834.932657][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.932657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.932657][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.932657][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.932657][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.932657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.932657][ T10] [ 1834.934959][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1834.934959][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1834.934959][ T10] ipv6_find_idev+0x102/0x170 [ 1834.934959][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.934959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.934959][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.934959][ T10] netlink_unicast+0x449/0x710 [ 1834.934959][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.934959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.934959][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.934959][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.934959][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.934959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.934959][ T10] [ 1834.936681][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1834.936681][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1834.936681][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1834.936681][ T10] ipv6_find_idev+0x102/0x170 [ 1834.936681][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1834.936681][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1834.936681][ T10] netlink_rcv_skb+0x130/0x360 [ 1834.936681][ T10] netlink_unicast+0x449/0x710 [ 1834.936681][ T10] netlink_sendmsg+0x723/0xbe0 [ 1834.936681][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1834.936681][ T10] ___sys_sendmsg+0xee/0x170 [ 1834.936681][ T10] __sys_sendmsg+0xcd/0x170 [ 1834.936681][ T10] do_syscall_64+0xc6/0x1e0 [ 1834.936681][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1834.936681][ T10] [ 1845.187766][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1845.188197][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1845.188197][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.188197][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.188197][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.188197][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.188197][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.188197][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.188197][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.188197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.188197][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.188197][ T10] netlink_unicast+0x449/0x710 [ 1845.188197][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.188197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.188197][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.188197][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.188197][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.188197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.188197][ T10] [ 1845.190232][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1845.190232][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.190232][ T10] ipv6_find_idev+0x102/0x170 [ 1845.190232][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.190232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.190232][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.190232][ T10] netlink_unicast+0x449/0x710 [ 1845.190232][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.190232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.190232][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.190232][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.190232][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.190232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.190232][ T10] [ 1845.191780][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1845.191780][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.191780][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.191780][ T10] ipv6_find_idev+0x102/0x170 [ 1845.191780][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.191780][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.191780][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.191780][ T10] netlink_unicast+0x449/0x710 [ 1845.191780][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.191780][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.191780][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.191780][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.191780][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.191780][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.191780][ T10] [ 1845.193469][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1845.193749][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1845.193749][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.193749][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.193749][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.193749][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.193749][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.193749][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.193749][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.193749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.193749][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.193749][ T10] netlink_unicast+0x449/0x710 [ 1845.193749][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.193749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.193749][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.193749][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.193749][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.193749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.193749][ T10] [ 1845.195740][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1845.195740][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.195740][ T10] ipv6_find_idev+0x102/0x170 [ 1845.195740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.195740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.195740][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.195740][ T10] netlink_unicast+0x449/0x710 [ 1845.195740][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.195740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.195740][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.195740][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.195740][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.195740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.195740][ T10] [ 1845.197280][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1845.197280][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.197280][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.197280][ T10] ipv6_find_idev+0x102/0x170 [ 1845.197280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.197280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.197280][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.197280][ T10] netlink_unicast+0x449/0x710 [ 1845.197280][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.197280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.197280][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.197280][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.197280][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.197280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.197280][ T10] [ 1845.198971][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1845.199243][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1845.199243][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.199243][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.199243][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.199243][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.199243][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.199243][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.199243][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.199243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.199243][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.199243][ T10] netlink_unicast+0x449/0x710 [ 1845.199243][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.199243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.199243][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.199243][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.199243][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.199243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.199243][ T10] [ 1845.201244][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1845.201244][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.201244][ T10] ipv6_find_idev+0x102/0x170 [ 1845.201244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.201244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.201244][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.201244][ T10] netlink_unicast+0x449/0x710 [ 1845.201244][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.201244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.201244][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.201244][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.201244][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.201244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.201244][ T10] [ 1845.202768][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1845.202768][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.202768][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.202768][ T10] ipv6_find_idev+0x102/0x170 [ 1845.202768][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.202768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.202768][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.202768][ T10] netlink_unicast+0x449/0x710 [ 1845.202768][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.202768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.202768][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.202768][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.202768][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.202768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.202768][ T10] [ 1845.204437][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1845.205137][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1845.205137][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.205137][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.205137][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.205137][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.205137][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.205137][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.205137][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.205137][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.205137][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.205137][ T10] netlink_unicast+0x449/0x710 [ 1845.205137][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.205137][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.205137][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.205137][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.205137][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.205137][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.205137][ T10] [ 1845.207122][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1845.207122][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.207122][ T10] ipv6_find_idev+0x102/0x170 [ 1845.207122][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.207122][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.207122][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.207122][ T10] netlink_unicast+0x449/0x710 [ 1845.207122][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.207122][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.207122][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.207122][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.207122][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.207122][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.207122][ T10] [ 1845.208652][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1845.208652][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.208652][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.208652][ T10] ipv6_find_idev+0x102/0x170 [ 1845.208652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.208652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.208652][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.208652][ T10] netlink_unicast+0x449/0x710 [ 1845.208652][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.208652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.208652][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.208652][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.208652][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.208652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.208652][ T10] [ 1845.210367][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1845.210629][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1845.210629][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.210629][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.210629][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.210629][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.210629][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.210629][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.210629][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.210629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.210629][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.210629][ T10] netlink_unicast+0x449/0x710 [ 1845.210629][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.210629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.210629][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.210629][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.210629][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.210629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.210629][ T10] [ 1845.212613][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1845.212613][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.212613][ T10] ipv6_find_idev+0x102/0x170 [ 1845.212613][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.212613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.212613][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.212613][ T10] netlink_unicast+0x449/0x710 [ 1845.212613][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.212613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.212613][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.212613][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.212613][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.212613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.212613][ T10] [ 1845.214150][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1845.214150][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.214150][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.214150][ T10] ipv6_find_idev+0x102/0x170 [ 1845.214150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.214150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.214150][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.214150][ T10] netlink_unicast+0x449/0x710 [ 1845.214150][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.214150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.214150][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.214150][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.214150][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.214150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.214150][ T10] [ 1845.215865][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1845.216127][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1845.216127][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.216127][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.216127][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.216127][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.216127][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.216127][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.216127][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.216127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.216127][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.216127][ T10] netlink_unicast+0x449/0x710 [ 1845.216127][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.216127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.216127][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.216127][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.216127][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.216127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.216127][ T10] [ 1845.218234][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1845.218234][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.218234][ T10] ipv6_find_idev+0x102/0x170 [ 1845.218234][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.218234][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.218234][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.218234][ T10] netlink_unicast+0x449/0x710 [ 1845.218234][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.218234][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.218234][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.218234][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.218234][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.218234][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.218234][ T10] [ 1845.220016][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1845.220016][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.220016][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.220016][ T10] ipv6_find_idev+0x102/0x170 [ 1845.220016][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.220016][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.220016][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.220016][ T10] netlink_unicast+0x449/0x710 [ 1845.220016][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.220016][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.220016][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.220016][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.220016][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.220016][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.220016][ T10] [ 1845.221912][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1845.222176][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1845.222176][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.222176][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.222176][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.222176][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.222176][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.222176][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.222176][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.222176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.222176][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.222176][ T10] netlink_unicast+0x449/0x710 [ 1845.222176][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.222176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.222176][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.222176][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.222176][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.222176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.222176][ T10] [ 1845.224395][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1845.224395][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.224395][ T10] ipv6_find_idev+0x102/0x170 [ 1845.224395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.224395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.224395][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.224395][ T10] netlink_unicast+0x449/0x710 [ 1845.224395][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.224395][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.224395][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.224395][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.224395][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.224395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.224395][ T10] [ 1845.226099][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1845.226099][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.226099][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.226099][ T10] ipv6_find_idev+0x102/0x170 [ 1845.226099][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.226099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.226099][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.226099][ T10] netlink_unicast+0x449/0x710 [ 1845.226099][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.226099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.226099][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.226099][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.226099][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.226099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.226099][ T10] [ 1845.227983][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1845.228258][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1845.228258][ T10] netdev_get_by_index+0x5e/0x80 [ 1845.228258][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1845.228258][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1845.228258][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1845.228258][ T10] ipv6_add_addr+0x411/0x2000 [ 1845.228258][ T10] inet6_addr_add+0x30e/0xa40 [ 1845.228258][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1845.228258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.228258][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.228258][ T10] netlink_unicast+0x449/0x710 [ 1845.228258][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.228258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.228258][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.228258][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.228258][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.228258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.228258][ T10] [ 1845.230541][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1845.230541][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1845.230541][ T10] ipv6_find_idev+0x102/0x170 [ 1845.230541][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.230541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.230541][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.230541][ T10] netlink_unicast+0x449/0x710 [ 1845.230541][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.230541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.230541][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.230541][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.230541][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.230541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.230541][ T10] [ 1845.232256][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1845.232256][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1845.232256][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1845.232256][ T10] ipv6_find_idev+0x102/0x170 [ 1845.232256][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1845.232256][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1845.232256][ T10] netlink_rcv_skb+0x130/0x360 [ 1845.232256][ T10] netlink_unicast+0x449/0x710 [ 1845.232256][ T10] netlink_sendmsg+0x723/0xbe0 [ 1845.232256][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1845.232256][ T10] ___sys_sendmsg+0xee/0x170 [ 1845.232256][ T10] __sys_sendmsg+0xcd/0x170 [ 1845.232256][ T10] do_syscall_64+0xc6/0x1e0 [ 1845.232256][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1845.232256][ T10] [ 1855.475722][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1855.476159][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1855.476159][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.476159][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.476159][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.476159][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.476159][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.476159][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.476159][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.476159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.476159][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.476159][ T10] netlink_unicast+0x449/0x710 [ 1855.476159][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.476159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.476159][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.476159][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.476159][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.476159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.476159][ T10] [ 1855.478162][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1855.478162][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.478162][ T10] ipv6_find_idev+0x102/0x170 [ 1855.478162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.478162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.478162][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.478162][ T10] netlink_unicast+0x449/0x710 [ 1855.478162][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.478162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.478162][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.478162][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.478162][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.478162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.478162][ T10] [ 1855.479703][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1855.479703][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.479703][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.479703][ T10] ipv6_find_idev+0x102/0x170 [ 1855.479703][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.479703][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.479703][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.479703][ T10] netlink_unicast+0x449/0x710 [ 1855.479703][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.479703][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.479703][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.479703][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.479703][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.479703][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.479703][ T10] [ 1855.481398][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1855.481664][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1855.481664][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.481664][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.481664][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.481664][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.481664][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.481664][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.481664][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.481664][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.481664][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.481664][ T10] netlink_unicast+0x449/0x710 [ 1855.481664][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.481664][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.481664][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.481664][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.481664][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.481664][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.481664][ T10] [ 1855.483650][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1855.483650][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.483650][ T10] ipv6_find_idev+0x102/0x170 [ 1855.483650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.483650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.483650][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.483650][ T10] netlink_unicast+0x449/0x710 [ 1855.483650][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.483650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.483650][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.483650][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.483650][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.483650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.483650][ T10] [ 1855.485178][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1855.485178][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.485178][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.485178][ T10] ipv6_find_idev+0x102/0x170 [ 1855.485178][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.485178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.485178][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.485178][ T10] netlink_unicast+0x449/0x710 [ 1855.485178][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.485178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.485178][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.485178][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.485178][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.485178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.485178][ T10] [ 1855.486849][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1855.487114][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1855.487114][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.487114][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.487114][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.487114][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.487114][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.487114][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.487114][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.487114][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.487114][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.487114][ T10] netlink_unicast+0x449/0x710 [ 1855.487114][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.487114][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.487114][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.487114][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.487114][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.487114][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.487114][ T10] [ 1855.489101][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1855.489101][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.489101][ T10] ipv6_find_idev+0x102/0x170 [ 1855.489101][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.489101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.489101][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.489101][ T10] netlink_unicast+0x449/0x710 [ 1855.489101][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.489101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.489101][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.489101][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.489101][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.489101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.489101][ T10] [ 1855.490650][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1855.490650][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.490650][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.490650][ T10] ipv6_find_idev+0x102/0x170 [ 1855.490650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.490650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.490650][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.490650][ T10] netlink_unicast+0x449/0x710 [ 1855.490650][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.490650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.490650][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.490650][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.490650][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.490650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.490650][ T10] [ 1855.492330][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1855.492595][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1855.492595][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.492595][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.492595][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.492595][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.492595][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.492595][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.492595][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.492595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.492595][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.492595][ T10] netlink_unicast+0x449/0x710 [ 1855.492595][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.492595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.492595][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.492595][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.492595][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.492595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.492595][ T10] [ 1855.494584][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1855.494584][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.494584][ T10] ipv6_find_idev+0x102/0x170 [ 1855.494584][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.494584][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.494584][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.494584][ T10] netlink_unicast+0x449/0x710 [ 1855.494584][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.494584][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.494584][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.494584][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.494584][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.494584][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.494584][ T10] [ 1855.496113][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1855.496113][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.496113][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.496113][ T10] ipv6_find_idev+0x102/0x170 [ 1855.496113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.496113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.496113][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.496113][ T10] netlink_unicast+0x449/0x710 [ 1855.496113][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.496113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.496113][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.496113][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.496113][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.496113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.496113][ T10] [ 1855.498188][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1855.498449][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1855.498449][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.498449][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.498449][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.498449][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.498449][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.498449][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.498449][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.498449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.498449][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.498449][ T10] netlink_unicast+0x449/0x710 [ 1855.498449][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.498449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.498449][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.498449][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.498449][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.498449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.498449][ T10] [ 1855.500425][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1855.500425][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.500425][ T10] ipv6_find_idev+0x102/0x170 [ 1855.500425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.500425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.500425][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.500425][ T10] netlink_unicast+0x449/0x710 [ 1855.500425][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.500425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.500425][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.500425][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.500425][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.500425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.500425][ T10] [ 1855.501955][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1855.501955][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.501955][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.501955][ T10] ipv6_find_idev+0x102/0x170 [ 1855.501955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.501955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.501955][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.501955][ T10] netlink_unicast+0x449/0x710 [ 1855.501955][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.501955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.501955][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.501955][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.501955][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.501955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.501955][ T10] [ 1855.503676][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1855.503940][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1855.503940][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.503940][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.503940][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.503940][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.503940][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.503940][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.503940][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.503940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.503940][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.503940][ T10] netlink_unicast+0x449/0x710 [ 1855.503940][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.503940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.503940][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.503940][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.503940][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.503940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.503940][ T10] [ 1855.506067][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1855.506067][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.506067][ T10] ipv6_find_idev+0x102/0x170 [ 1855.506067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.506067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.506067][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.506067][ T10] netlink_unicast+0x449/0x710 [ 1855.506067][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.506067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.506067][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.506067][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.506067][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.506067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.506067][ T10] [ 1855.508079][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1855.508079][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.508079][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.508079][ T10] ipv6_find_idev+0x102/0x170 [ 1855.508079][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.508079][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.508079][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.508079][ T10] netlink_unicast+0x449/0x710 [ 1855.508079][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.508079][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.508079][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.508079][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.508079][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.508079][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.508079][ T10] [ 1855.509854][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1855.510120][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1855.510120][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.510120][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.510120][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.510120][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.510120][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.510120][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.510120][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.510120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.510120][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.510120][ T10] netlink_unicast+0x449/0x710 [ 1855.510120][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.510120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.510120][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.510120][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.510120][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.510120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.510120][ T10] [ 1855.512220][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1855.512220][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.512220][ T10] ipv6_find_idev+0x102/0x170 [ 1855.512220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.512220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.512220][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.512220][ T10] netlink_unicast+0x449/0x710 [ 1855.512220][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.512220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.512220][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.512220][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.512220][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.512220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.512220][ T10] [ 1855.513804][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1855.513804][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.513804][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.513804][ T10] ipv6_find_idev+0x102/0x170 [ 1855.513804][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.513804][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.513804][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.513804][ T10] netlink_unicast+0x449/0x710 [ 1855.513804][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.513804][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.513804][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.513804][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.513804][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.513804][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.513804][ T10] [ 1855.515633][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1855.515953][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1855.515953][ T10] netdev_get_by_index+0x5e/0x80 [ 1855.515953][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1855.515953][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1855.515953][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1855.515953][ T10] ipv6_add_addr+0x411/0x2000 [ 1855.515953][ T10] inet6_addr_add+0x30e/0xa40 [ 1855.515953][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1855.515953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.515953][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.515953][ T10] netlink_unicast+0x449/0x710 [ 1855.515953][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.515953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.515953][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.515953][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.515953][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.515953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.515953][ T10] [ 1855.518049][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1855.518049][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1855.518049][ T10] ipv6_find_idev+0x102/0x170 [ 1855.518049][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.518049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.518049][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.518049][ T10] netlink_unicast+0x449/0x710 [ 1855.518049][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.518049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.518049][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.518049][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.518049][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.518049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.518049][ T10] [ 1855.519635][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1855.519635][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1855.519635][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1855.519635][ T10] ipv6_find_idev+0x102/0x170 [ 1855.519635][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1855.519635][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1855.519635][ T10] netlink_rcv_skb+0x130/0x360 [ 1855.519635][ T10] netlink_unicast+0x449/0x710 [ 1855.519635][ T10] netlink_sendmsg+0x723/0xbe0 [ 1855.519635][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1855.519635][ T10] ___sys_sendmsg+0xee/0x170 [ 1855.519635][ T10] __sys_sendmsg+0xcd/0x170 [ 1855.519635][ T10] do_syscall_64+0xc6/0x1e0 [ 1855.519635][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1855.519635][ T10] [ 1865.571703][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1865.572042][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1865.572042][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.572042][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.572042][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.572042][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.572042][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.572042][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.572042][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.572042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.572042][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.572042][ T10] netlink_unicast+0x449/0x710 [ 1865.572042][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.572042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.572042][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.572042][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.572042][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.572042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.572042][ T10] [ 1865.574078][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1865.574078][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.574078][ T10] ipv6_find_idev+0x102/0x170 [ 1865.574078][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.574078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.574078][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.574078][ T10] netlink_unicast+0x449/0x710 [ 1865.574078][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.574078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.574078][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.574078][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.574078][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.574078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.574078][ T10] [ 1865.575624][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1865.575624][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.575624][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.575624][ T10] ipv6_find_idev+0x102/0x170 [ 1865.575624][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.575624][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.575624][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.575624][ T10] netlink_unicast+0x449/0x710 [ 1865.575624][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.575624][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.575624][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.575624][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.575624][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.575624][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.575624][ T10] [ 1865.577309][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1865.577584][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1865.577584][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.577584][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.577584][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.577584][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.577584][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.577584][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.577584][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.577584][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.577584][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.577584][ T10] netlink_unicast+0x449/0x710 [ 1865.577584][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.577584][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.577584][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.577584][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.577584][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.577584][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.577584][ T10] [ 1865.579595][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1865.579595][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.579595][ T10] ipv6_find_idev+0x102/0x170 [ 1865.579595][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.579595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.579595][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.579595][ T10] netlink_unicast+0x449/0x710 [ 1865.579595][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.579595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.579595][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.579595][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.579595][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.579595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.579595][ T10] [ 1865.581312][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1865.581312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.581312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.581312][ T10] ipv6_find_idev+0x102/0x170 [ 1865.581312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.581312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.581312][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.581312][ T10] netlink_unicast+0x449/0x710 [ 1865.581312][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.581312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.581312][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.581312][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.581312][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.581312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.581312][ T10] [ 1865.583349][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1865.583618][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1865.583618][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.583618][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.583618][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.583618][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.583618][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.583618][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.583618][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.583618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.583618][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.583618][ T10] netlink_unicast+0x449/0x710 [ 1865.583618][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.583618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.583618][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.583618][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.583618][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.583618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.583618][ T10] [ 1865.585711][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1865.585711][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.585711][ T10] ipv6_find_idev+0x102/0x170 [ 1865.585711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.585711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.585711][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.585711][ T10] netlink_unicast+0x449/0x710 [ 1865.585711][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.585711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.585711][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.585711][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.585711][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.585711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.585711][ T10] [ 1865.587405][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1865.587405][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.587405][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.587405][ T10] ipv6_find_idev+0x102/0x170 [ 1865.587405][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.587405][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.587405][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.587405][ T10] netlink_unicast+0x449/0x710 [ 1865.587405][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.587405][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.587405][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.587405][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.587405][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.587405][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.587405][ T10] [ 1865.589288][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1865.589554][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1865.589554][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.589554][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.589554][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.589554][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.589554][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.589554][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.589554][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.589554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.589554][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.589554][ T10] netlink_unicast+0x449/0x710 [ 1865.589554][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.589554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.589554][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.589554][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.589554][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.589554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.589554][ T10] [ 1865.591861][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1865.591861][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.591861][ T10] ipv6_find_idev+0x102/0x170 [ 1865.591861][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.591861][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.591861][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.591861][ T10] netlink_unicast+0x449/0x710 [ 1865.591861][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.591861][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.591861][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.591861][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.591861][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.591861][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.591861][ T10] [ 1865.593534][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1865.593534][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.593534][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.593534][ T10] ipv6_find_idev+0x102/0x170 [ 1865.593534][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.593534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.593534][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.593534][ T10] netlink_unicast+0x449/0x710 [ 1865.593534][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.593534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.593534][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.593534][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.593534][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.593534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.593534][ T10] [ 1865.595508][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1865.596282][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1865.596282][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.596282][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.596282][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.596282][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.596282][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.596282][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.596282][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.596282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.596282][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.596282][ T10] netlink_unicast+0x449/0x710 [ 1865.596282][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.596282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.596282][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.596282][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.596282][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.596282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.596282][ T10] [ 1865.598274][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1865.598274][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.598274][ T10] ipv6_find_idev+0x102/0x170 [ 1865.598274][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.598274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.598274][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.598274][ T10] netlink_unicast+0x449/0x710 [ 1865.598274][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.598274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.598274][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.598274][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.598274][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.598274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.598274][ T10] [ 1865.599836][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1865.599836][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.599836][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.599836][ T10] ipv6_find_idev+0x102/0x170 [ 1865.599836][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.599836][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.599836][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.599836][ T10] netlink_unicast+0x449/0x710 [ 1865.599836][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.599836][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.599836][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.599836][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.599836][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.599836][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.599836][ T10] [ 1865.601586][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1865.601908][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1865.601908][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.601908][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.601908][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.601908][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.601908][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.601908][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.601908][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.601908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.601908][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.601908][ T10] netlink_unicast+0x449/0x710 [ 1865.601908][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.601908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.601908][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.601908][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.601908][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.601908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.601908][ T10] [ 1865.604053][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1865.604053][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.604053][ T10] ipv6_find_idev+0x102/0x170 [ 1865.604053][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.604053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.604053][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.604053][ T10] netlink_unicast+0x449/0x710 [ 1865.604053][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.604053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.604053][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.604053][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.604053][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.604053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.604053][ T10] [ 1865.605641][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1865.605641][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.605641][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.605641][ T10] ipv6_find_idev+0x102/0x170 [ 1865.605641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.605641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.605641][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.605641][ T10] netlink_unicast+0x449/0x710 [ 1865.605641][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.605641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.605641][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.605641][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.605641][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.605641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.605641][ T10] [ 1865.607393][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1865.607665][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1865.607665][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.607665][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.607665][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.607665][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.607665][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.607665][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.607665][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.607665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.607665][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.607665][ T10] netlink_unicast+0x449/0x710 [ 1865.607665][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.607665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.607665][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.607665][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.607665][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.607665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.607665][ T10] [ 1865.609897][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1865.609897][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.609897][ T10] ipv6_find_idev+0x102/0x170 [ 1865.609897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.609897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.609897][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.609897][ T10] netlink_unicast+0x449/0x710 [ 1865.609897][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.609897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.609897][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.609897][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.609897][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.609897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.609897][ T10] [ 1865.611529][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1865.611529][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.611529][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.611529][ T10] ipv6_find_idev+0x102/0x170 [ 1865.611529][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.611529][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.611529][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.611529][ T10] netlink_unicast+0x449/0x710 [ 1865.611529][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.611529][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.611529][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.611529][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.611529][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.611529][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.611529][ T10] [ 1865.613483][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1865.613819][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1865.613819][ T10] netdev_get_by_index+0x5e/0x80 [ 1865.613819][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1865.613819][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1865.613819][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1865.613819][ T10] ipv6_add_addr+0x411/0x2000 [ 1865.613819][ T10] inet6_addr_add+0x30e/0xa40 [ 1865.613819][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1865.613819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.613819][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.613819][ T10] netlink_unicast+0x449/0x710 [ 1865.613819][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.613819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.613819][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.613819][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.613819][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.613819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.613819][ T10] [ 1865.615921][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1865.615921][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1865.615921][ T10] ipv6_find_idev+0x102/0x170 [ 1865.615921][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.615921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.615921][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.615921][ T10] netlink_unicast+0x449/0x710 [ 1865.615921][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.615921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.615921][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.615921][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.615921][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.615921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.615921][ T10] [ 1865.617593][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1865.617593][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1865.617593][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1865.617593][ T10] ipv6_find_idev+0x102/0x170 [ 1865.617593][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1865.617593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1865.617593][ T10] netlink_rcv_skb+0x130/0x360 [ 1865.617593][ T10] netlink_unicast+0x449/0x710 [ 1865.617593][ T10] netlink_sendmsg+0x723/0xbe0 [ 1865.617593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1865.617593][ T10] ___sys_sendmsg+0xee/0x170 [ 1865.617593][ T10] __sys_sendmsg+0xcd/0x170 [ 1865.617593][ T10] do_syscall_64+0xc6/0x1e0 [ 1865.617593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1865.617593][ T10] [ 1875.715761][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1875.716174][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1875.716174][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.716174][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.716174][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.716174][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.716174][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.716174][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.716174][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.716174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.716174][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.716174][ T10] netlink_unicast+0x449/0x710 [ 1875.716174][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.716174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.716174][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.716174][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.716174][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.716174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.716174][ T10] [ 1875.718237][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1875.718237][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.718237][ T10] ipv6_find_idev+0x102/0x170 [ 1875.718237][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.718237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.718237][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.718237][ T10] netlink_unicast+0x449/0x710 [ 1875.718237][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.718237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.718237][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.718237][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.718237][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.718237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.718237][ T10] [ 1875.719789][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1875.719789][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.719789][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.719789][ T10] ipv6_find_idev+0x102/0x170 [ 1875.719789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.719789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.719789][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.719789][ T10] netlink_unicast+0x449/0x710 [ 1875.719789][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.719789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.719789][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.719789][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.719789][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.719789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.719789][ T10] [ 1875.721511][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1875.721797][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1875.721797][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.721797][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.721797][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.721797][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.721797][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.721797][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.721797][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.721797][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.721797][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.721797][ T10] netlink_unicast+0x449/0x710 [ 1875.721797][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.721797][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.721797][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.721797][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.721797][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.721797][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.721797][ T10] [ 1875.723806][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1875.723806][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.723806][ T10] ipv6_find_idev+0x102/0x170 [ 1875.723806][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.723806][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.723806][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.723806][ T10] netlink_unicast+0x449/0x710 [ 1875.723806][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.723806][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.723806][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.723806][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.723806][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.723806][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.723806][ T10] [ 1875.725353][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1875.725353][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.725353][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.725353][ T10] ipv6_find_idev+0x102/0x170 [ 1875.725353][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.725353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.725353][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.725353][ T10] netlink_unicast+0x449/0x710 [ 1875.725353][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.725353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.725353][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.725353][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.725353][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.725353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.725353][ T10] [ 1875.727061][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1875.727342][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1875.727342][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.727342][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.727342][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.727342][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.727342][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.727342][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.727342][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.727342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.727342][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.727342][ T10] netlink_unicast+0x449/0x710 [ 1875.727342][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.727342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.727342][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.727342][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.727342][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.727342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.727342][ T10] [ 1875.729348][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1875.729348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.729348][ T10] ipv6_find_idev+0x102/0x170 [ 1875.729348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.729348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.729348][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.729348][ T10] netlink_unicast+0x449/0x710 [ 1875.729348][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.729348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.729348][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.729348][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.729348][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.729348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.729348][ T10] [ 1875.730899][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1875.730899][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.730899][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.730899][ T10] ipv6_find_idev+0x102/0x170 [ 1875.730899][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.730899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.730899][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.730899][ T10] netlink_unicast+0x449/0x710 [ 1875.730899][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.730899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.730899][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.730899][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.730899][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.730899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.730899][ T10] [ 1875.732614][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1875.733324][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1875.733324][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.733324][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.733324][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.733324][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.733324][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.733324][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.733324][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.733324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.733324][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.733324][ T10] netlink_unicast+0x449/0x710 [ 1875.733324][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.733324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.733324][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.733324][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.733324][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.733324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.733324][ T10] [ 1875.735338][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1875.735338][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.735338][ T10] ipv6_find_idev+0x102/0x170 [ 1875.735338][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.735338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.735338][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.735338][ T10] netlink_unicast+0x449/0x710 [ 1875.735338][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.735338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.735338][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.735338][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.735338][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.735338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.735338][ T10] [ 1875.736891][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1875.736891][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.736891][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.736891][ T10] ipv6_find_idev+0x102/0x170 [ 1875.736891][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.736891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.736891][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.736891][ T10] netlink_unicast+0x449/0x710 [ 1875.736891][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.736891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.736891][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.736891][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.736891][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.736891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.736891][ T10] [ 1875.738631][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1875.738949][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1875.738949][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.738949][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.738949][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.738949][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.738949][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.738949][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.738949][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.738949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.738949][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.738949][ T10] netlink_unicast+0x449/0x710 [ 1875.738949][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.738949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.738949][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.738949][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.738949][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.738949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.738949][ T10] [ 1875.740962][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1875.740962][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.740962][ T10] ipv6_find_idev+0x102/0x170 [ 1875.740962][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.740962][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.740962][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.740962][ T10] netlink_unicast+0x449/0x710 [ 1875.740962][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.740962][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.740962][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.740962][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.740962][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.740962][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.740962][ T10] [ 1875.742516][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1875.742516][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.742516][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.742516][ T10] ipv6_find_idev+0x102/0x170 [ 1875.742516][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.742516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.742516][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.742516][ T10] netlink_unicast+0x449/0x710 [ 1875.742516][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.742516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.742516][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.742516][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.742516][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.742516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.742516][ T10] [ 1875.744271][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1875.744542][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1875.744542][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.744542][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.744542][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.744542][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.744542][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.744542][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.744542][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.744542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.744542][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.744542][ T10] netlink_unicast+0x449/0x710 [ 1875.744542][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.744542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.744542][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.744542][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.744542][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.744542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.744542][ T10] [ 1875.746627][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1875.746627][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.746627][ T10] ipv6_find_idev+0x102/0x170 [ 1875.746627][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.746627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.746627][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.746627][ T10] netlink_unicast+0x449/0x710 [ 1875.746627][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.746627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.746627][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.746627][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.746627][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.746627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.746627][ T10] [ 1875.748432][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1875.748432][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.748432][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.748432][ T10] ipv6_find_idev+0x102/0x170 [ 1875.748432][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.748432][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.748432][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.748432][ T10] netlink_unicast+0x449/0x710 [ 1875.748432][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.748432][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.748432][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.748432][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.748432][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.748432][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.748432][ T10] [ 1875.750407][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1875.750682][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1875.750682][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.750682][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.750682][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.750682][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.750682][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.750682][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.750682][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.750682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.750682][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.750682][ T10] netlink_unicast+0x449/0x710 [ 1875.750682][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.750682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.750682][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.750682][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.750682][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.750682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.750682][ T10] [ 1875.752866][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1875.752866][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.752866][ T10] ipv6_find_idev+0x102/0x170 [ 1875.752866][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.752866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.752866][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.752866][ T10] netlink_unicast+0x449/0x710 [ 1875.752866][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.752866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.752866][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.752866][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.752866][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.752866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.752866][ T10] [ 1875.754598][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1875.754598][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.754598][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.754598][ T10] ipv6_find_idev+0x102/0x170 [ 1875.754598][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.754598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.754598][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.754598][ T10] netlink_unicast+0x449/0x710 [ 1875.754598][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.754598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.754598][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.754598][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.754598][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.754598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.754598][ T10] [ 1875.756520][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1875.756845][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1875.756845][ T10] netdev_get_by_index+0x5e/0x80 [ 1875.756845][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1875.756845][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1875.756845][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1875.756845][ T10] ipv6_add_addr+0x411/0x2000 [ 1875.756845][ T10] inet6_addr_add+0x30e/0xa40 [ 1875.756845][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1875.756845][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.756845][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.756845][ T10] netlink_unicast+0x449/0x710 [ 1875.756845][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.756845][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.756845][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.756845][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.756845][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.756845][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.756845][ T10] [ 1875.759122][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1875.759122][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1875.759122][ T10] ipv6_find_idev+0x102/0x170 [ 1875.759122][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.759122][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.759122][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.759122][ T10] netlink_unicast+0x449/0x710 [ 1875.759122][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.759122][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.759122][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.759122][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.759122][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.759122][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.759122][ T10] [ 1875.760855][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1875.760855][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1875.760855][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1875.760855][ T10] ipv6_find_idev+0x102/0x170 [ 1875.760855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1875.760855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1875.760855][ T10] netlink_rcv_skb+0x130/0x360 [ 1875.760855][ T10] netlink_unicast+0x449/0x710 [ 1875.760855][ T10] netlink_sendmsg+0x723/0xbe0 [ 1875.760855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1875.760855][ T10] ___sys_sendmsg+0xee/0x170 [ 1875.760855][ T10] __sys_sendmsg+0xcd/0x170 [ 1875.760855][ T10] do_syscall_64+0xc6/0x1e0 [ 1875.760855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1875.760855][ T10] [ 1885.763752][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1885.764185][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1885.764185][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.764185][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.764185][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.764185][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.764185][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.764185][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.764185][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.764185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.764185][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.764185][ T10] netlink_unicast+0x449/0x710 [ 1885.764185][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.764185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.764185][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.764185][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.764185][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.764185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.764185][ T10] [ 1885.766242][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1885.766242][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.766242][ T10] ipv6_find_idev+0x102/0x170 [ 1885.766242][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.766242][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.766242][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.766242][ T10] netlink_unicast+0x449/0x710 [ 1885.766242][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.766242][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.766242][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.766242][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.766242][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.766242][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.766242][ T10] [ 1885.767817][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1885.767817][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.767817][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.767817][ T10] ipv6_find_idev+0x102/0x170 [ 1885.767817][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.767817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.767817][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.767817][ T10] netlink_unicast+0x449/0x710 [ 1885.767817][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.767817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.767817][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.767817][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.767817][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.767817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.767817][ T10] [ 1885.769545][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1885.769839][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1885.769839][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.769839][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.769839][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.769839][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.769839][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.769839][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.769839][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.769839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.769839][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.769839][ T10] netlink_unicast+0x449/0x710 [ 1885.769839][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.769839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.769839][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.769839][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.769839][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.769839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.769839][ T10] [ 1885.771860][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1885.771860][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.771860][ T10] ipv6_find_idev+0x102/0x170 [ 1885.771860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.771860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.771860][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.771860][ T10] netlink_unicast+0x449/0x710 [ 1885.771860][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.771860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.771860][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.771860][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.771860][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.771860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.771860][ T10] [ 1885.773394][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1885.773394][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.773394][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.773394][ T10] ipv6_find_idev+0x102/0x170 [ 1885.773394][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.773394][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.773394][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.773394][ T10] netlink_unicast+0x449/0x710 [ 1885.773394][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.773394][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.773394][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.773394][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.773394][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.773394][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.773394][ T10] [ 1885.775089][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1885.775351][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1885.775351][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.775351][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.775351][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.775351][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.775351][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.775351][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.775351][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.775351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.775351][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.775351][ T10] netlink_unicast+0x449/0x710 [ 1885.775351][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.775351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.775351][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.775351][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.775351][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.775351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.775351][ T10] [ 1885.777346][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1885.777346][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.777346][ T10] ipv6_find_idev+0x102/0x170 [ 1885.777346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.777346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.777346][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.777346][ T10] netlink_unicast+0x449/0x710 [ 1885.777346][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.777346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.777346][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.777346][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.777346][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.777346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.777346][ T10] [ 1885.778883][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1885.778883][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.778883][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.778883][ T10] ipv6_find_idev+0x102/0x170 [ 1885.778883][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.778883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.778883][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.778883][ T10] netlink_unicast+0x449/0x710 [ 1885.778883][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.778883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.778883][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.778883][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.778883][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.778883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.778883][ T10] [ 1885.780557][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1885.781280][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1885.781280][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.781280][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.781280][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.781280][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.781280][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.781280][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.781280][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.781280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.781280][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.781280][ T10] netlink_unicast+0x449/0x710 [ 1885.781280][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.781280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.781280][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.781280][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.781280][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.781280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.781280][ T10] [ 1885.783270][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1885.783270][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.783270][ T10] ipv6_find_idev+0x102/0x170 [ 1885.783270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.783270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.783270][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.783270][ T10] netlink_unicast+0x449/0x710 [ 1885.783270][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.783270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.783270][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.783270][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.783270][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.783270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.783270][ T10] [ 1885.784812][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1885.784812][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.784812][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.784812][ T10] ipv6_find_idev+0x102/0x170 [ 1885.784812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.784812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.784812][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.784812][ T10] netlink_unicast+0x449/0x710 [ 1885.784812][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.784812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.784812][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.784812][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.784812][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.784812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.784812][ T10] [ 1885.786554][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1885.786871][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1885.786871][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.786871][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.786871][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.786871][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.786871][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.786871][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.786871][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.786871][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.786871][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.786871][ T10] netlink_unicast+0x449/0x710 [ 1885.786871][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.786871][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.786871][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.786871][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.786871][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.786871][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.786871][ T10] [ 1885.788869][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1885.788869][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.788869][ T10] ipv6_find_idev+0x102/0x170 [ 1885.788869][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.788869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.788869][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.788869][ T10] netlink_unicast+0x449/0x710 [ 1885.788869][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.788869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.788869][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.788869][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.788869][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.788869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.788869][ T10] [ 1885.790416][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1885.790416][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.790416][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.790416][ T10] ipv6_find_idev+0x102/0x170 [ 1885.790416][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.790416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.790416][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.790416][ T10] netlink_unicast+0x449/0x710 [ 1885.790416][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.790416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.790416][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.790416][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.790416][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.790416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.790416][ T10] [ 1885.792152][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1885.792415][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1885.792415][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.792415][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.792415][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.792415][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.792415][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.792415][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.792415][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.792415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.792415][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.792415][ T10] netlink_unicast+0x449/0x710 [ 1885.792415][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.792415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.792415][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.792415][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.792415][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.792415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.792415][ T10] [ 1885.794489][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1885.794489][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.794489][ T10] ipv6_find_idev+0x102/0x170 [ 1885.794489][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.794489][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.794489][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.794489][ T10] netlink_unicast+0x449/0x710 [ 1885.794489][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.794489][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.794489][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.794489][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.794489][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.794489][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.794489][ T10] [ 1885.796105][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1885.796105][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.796105][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.796105][ T10] ipv6_find_idev+0x102/0x170 [ 1885.796105][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.796105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.796105][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.796105][ T10] netlink_unicast+0x449/0x710 [ 1885.796105][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.796105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.796105][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.796105][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.796105][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.796105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.796105][ T10] [ 1885.797964][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1885.798223][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1885.798223][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.798223][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.798223][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.798223][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.798223][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.798223][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.798223][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.798223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.798223][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.798223][ T10] netlink_unicast+0x449/0x710 [ 1885.798223][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.798223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.798223][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.798223][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.798223][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.798223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.798223][ T10] [ 1885.800363][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1885.800363][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.800363][ T10] ipv6_find_idev+0x102/0x170 [ 1885.800363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.800363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.800363][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.800363][ T10] netlink_unicast+0x449/0x710 [ 1885.800363][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.800363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.800363][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.800363][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.800363][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.800363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.800363][ T10] [ 1885.801982][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1885.801982][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.801982][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.801982][ T10] ipv6_find_idev+0x102/0x170 [ 1885.801982][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.801982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.801982][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.801982][ T10] netlink_unicast+0x449/0x710 [ 1885.801982][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.801982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.801982][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.801982][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.801982][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.801982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.801982][ T10] [ 1885.803854][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1885.804121][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1885.804121][ T10] netdev_get_by_index+0x5e/0x80 [ 1885.804121][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1885.804121][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1885.804121][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1885.804121][ T10] ipv6_add_addr+0x411/0x2000 [ 1885.804121][ T10] inet6_addr_add+0x30e/0xa40 [ 1885.804121][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1885.804121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.804121][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.804121][ T10] netlink_unicast+0x449/0x710 [ 1885.804121][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.804121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.804121][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.804121][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.804121][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.804121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.804121][ T10] [ 1885.806264][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1885.806264][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1885.806264][ T10] ipv6_find_idev+0x102/0x170 [ 1885.806264][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.806264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.806264][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.806264][ T10] netlink_unicast+0x449/0x710 [ 1885.806264][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.806264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.806264][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.806264][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.806264][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.806264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.806264][ T10] [ 1885.807869][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1885.807869][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1885.807869][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1885.807869][ T10] ipv6_find_idev+0x102/0x170 [ 1885.807869][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1885.807869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1885.807869][ T10] netlink_rcv_skb+0x130/0x360 [ 1885.807869][ T10] netlink_unicast+0x449/0x710 [ 1885.807869][ T10] netlink_sendmsg+0x723/0xbe0 [ 1885.807869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1885.807869][ T10] ___sys_sendmsg+0xee/0x170 [ 1885.807869][ T10] __sys_sendmsg+0xcd/0x170 [ 1885.807869][ T10] do_syscall_64+0xc6/0x1e0 [ 1885.807869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1885.807869][ T10] [ 1896.051864][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1896.052406][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1896.052406][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.052406][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.052406][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.052406][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.052406][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.052406][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.052406][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.052406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.052406][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.052406][ T10] netlink_unicast+0x449/0x710 [ 1896.052406][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.052406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.052406][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.052406][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.052406][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.052406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.052406][ T10] [ 1896.054705][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1896.054705][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.054705][ T10] ipv6_find_idev+0x102/0x170 [ 1896.054705][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.054705][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.054705][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.054705][ T10] netlink_unicast+0x449/0x710 [ 1896.054705][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.054705][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.054705][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.054705][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.054705][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.054705][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.054705][ T10] [ 1896.056468][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1896.056468][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.056468][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.056468][ T10] ipv6_find_idev+0x102/0x170 [ 1896.056468][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.056468][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.056468][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.056468][ T10] netlink_unicast+0x449/0x710 [ 1896.056468][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.056468][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.056468][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.056468][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.056468][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.056468][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.056468][ T10] [ 1896.058408][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1896.058754][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1896.058754][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.058754][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.058754][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.058754][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.058754][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.058754][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.058754][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.058754][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.058754][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.058754][ T10] netlink_unicast+0x449/0x710 [ 1896.058754][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.058754][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.058754][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.058754][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.058754][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.058754][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.058754][ T10] [ 1896.060989][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1896.060989][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.060989][ T10] ipv6_find_idev+0x102/0x170 [ 1896.060989][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.060989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.060989][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.060989][ T10] netlink_unicast+0x449/0x710 [ 1896.060989][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.060989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.060989][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.060989][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.060989][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.060989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.060989][ T10] [ 1896.062728][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1896.062728][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.062728][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.062728][ T10] ipv6_find_idev+0x102/0x170 [ 1896.062728][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.062728][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.062728][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.062728][ T10] netlink_unicast+0x449/0x710 [ 1896.062728][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.062728][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.062728][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.062728][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.062728][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.062728][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.062728][ T10] [ 1896.064673][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1896.064966][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1896.064966][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.064966][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.064966][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.064966][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.064966][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.064966][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.064966][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.064966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.064966][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.064966][ T10] netlink_unicast+0x449/0x710 [ 1896.064966][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.064966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.064966][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.064966][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.064966][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.064966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.064966][ T10] [ 1896.067211][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1896.067211][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.067211][ T10] ipv6_find_idev+0x102/0x170 [ 1896.067211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.067211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.067211][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.067211][ T10] netlink_unicast+0x449/0x710 [ 1896.067211][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.067211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.067211][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.067211][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.067211][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.067211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.067211][ T10] [ 1896.068941][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1896.068941][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.068941][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.068941][ T10] ipv6_find_idev+0x102/0x170 [ 1896.068941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.068941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.068941][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.068941][ T10] netlink_unicast+0x449/0x710 [ 1896.068941][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.068941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.068941][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.068941][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.068941][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.068941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.068941][ T10] [ 1896.070846][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1896.071158][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1896.071158][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.071158][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.071158][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.071158][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.071158][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.071158][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.071158][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.071158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.071158][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.071158][ T10] netlink_unicast+0x449/0x710 [ 1896.071158][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.071158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.071158][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.071158][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.071158][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.071158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.071158][ T10] [ 1896.073403][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1896.073403][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.073403][ T10] ipv6_find_idev+0x102/0x170 [ 1896.073403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.073403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.073403][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.073403][ T10] netlink_unicast+0x449/0x710 [ 1896.073403][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.073403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.073403][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.073403][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.073403][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.073403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.073403][ T10] [ 1896.075141][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1896.075141][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.075141][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.075141][ T10] ipv6_find_idev+0x102/0x170 [ 1896.075141][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.075141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.075141][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.075141][ T10] netlink_unicast+0x449/0x710 [ 1896.075141][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.075141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.075141][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.075141][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.075141][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.075141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.075141][ T10] [ 1896.077448][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1896.077804][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1896.077804][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.077804][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.077804][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.077804][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.077804][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.077804][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.077804][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.077804][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.077804][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.077804][ T10] netlink_unicast+0x449/0x710 [ 1896.077804][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.077804][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.077804][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.077804][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.077804][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.077804][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.077804][ T10] [ 1896.080040][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1896.080040][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.080040][ T10] ipv6_find_idev+0x102/0x170 [ 1896.080040][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.080040][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.080040][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.080040][ T10] netlink_unicast+0x449/0x710 [ 1896.080040][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.080040][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.080040][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.080040][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.080040][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.080040][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.080040][ T10] [ 1896.081761][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1896.081761][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.081761][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.081761][ T10] ipv6_find_idev+0x102/0x170 [ 1896.081761][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.081761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.081761][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.081761][ T10] netlink_unicast+0x449/0x710 [ 1896.081761][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.081761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.081761][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.081761][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.081761][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.081761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.081761][ T10] [ 1896.083715][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1896.084053][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1896.084053][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.084053][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.084053][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.084053][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.084053][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.084053][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.084053][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.084053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.084053][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.084053][ T10] netlink_unicast+0x449/0x710 [ 1896.084053][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.084053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.084053][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.084053][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.084053][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.084053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.084053][ T10] [ 1896.086279][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1896.086279][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.086279][ T10] ipv6_find_idev+0x102/0x170 [ 1896.086279][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.086279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.086279][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.086279][ T10] netlink_unicast+0x449/0x710 [ 1896.086279][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.086279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.086279][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.086279][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.086279][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.086279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.086279][ T10] [ 1896.088283][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1896.088283][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.088283][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.088283][ T10] ipv6_find_idev+0x102/0x170 [ 1896.088283][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.088283][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.088283][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.088283][ T10] netlink_unicast+0x449/0x710 [ 1896.088283][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.088283][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.088283][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.088283][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.088283][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.088283][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.088283][ T10] [ 1896.090389][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1896.090736][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1896.090736][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.090736][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.090736][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.090736][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.090736][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.090736][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.090736][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.090736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.090736][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.090736][ T10] netlink_unicast+0x449/0x710 [ 1896.090736][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.090736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.090736][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.090736][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.090736][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.090736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.090736][ T10] [ 1896.093169][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1896.093169][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.093169][ T10] ipv6_find_idev+0x102/0x170 [ 1896.093169][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.093169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.093169][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.093169][ T10] netlink_unicast+0x449/0x710 [ 1896.093169][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.093169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.093169][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.093169][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.093169][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.093169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.093169][ T10] [ 1896.095098][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1896.095098][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.095098][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.095098][ T10] ipv6_find_idev+0x102/0x170 [ 1896.095098][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.095098][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.095098][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.095098][ T10] netlink_unicast+0x449/0x710 [ 1896.095098][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.095098][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.095098][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.095098][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.095098][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.095098][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.095098][ T10] [ 1896.097216][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1896.097555][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1896.097555][ T10] netdev_get_by_index+0x5e/0x80 [ 1896.097555][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1896.097555][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1896.097555][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1896.097555][ T10] ipv6_add_addr+0x411/0x2000 [ 1896.097555][ T10] inet6_addr_add+0x30e/0xa40 [ 1896.097555][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1896.097555][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.097555][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.097555][ T10] netlink_unicast+0x449/0x710 [ 1896.097555][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.097555][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.097555][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.097555][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.097555][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.097555][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.097555][ T10] [ 1896.100067][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1896.100067][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1896.100067][ T10] ipv6_find_idev+0x102/0x170 [ 1896.100067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.100067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.100067][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.100067][ T10] netlink_unicast+0x449/0x710 [ 1896.100067][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.100067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.100067][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.100067][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.100067][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.100067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.100067][ T10] [ 1896.101999][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1896.101999][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1896.101999][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1896.101999][ T10] ipv6_find_idev+0x102/0x170 [ 1896.101999][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1896.101999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1896.101999][ T10] netlink_rcv_skb+0x130/0x360 [ 1896.101999][ T10] netlink_unicast+0x449/0x710 [ 1896.101999][ T10] netlink_sendmsg+0x723/0xbe0 [ 1896.101999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1896.101999][ T10] ___sys_sendmsg+0xee/0x170 [ 1896.101999][ T10] __sys_sendmsg+0xcd/0x170 [ 1896.101999][ T10] do_syscall_64+0xc6/0x1e0 [ 1896.101999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1896.101999][ T10] [ 1906.147773][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1906.148119][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1906.148119][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.148119][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.148119][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.148119][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.148119][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.148119][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.148119][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.148119][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.148119][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.148119][ T10] netlink_unicast+0x449/0x710 [ 1906.148119][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.148119][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.148119][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.148119][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.148119][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.148119][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.148119][ T10] [ 1906.150118][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1906.150118][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.150118][ T10] ipv6_find_idev+0x102/0x170 [ 1906.150118][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.150118][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.150118][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.150118][ T10] netlink_unicast+0x449/0x710 [ 1906.150118][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.150118][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.150118][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.150118][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.150118][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.150118][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.150118][ T10] [ 1906.151665][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1906.151665][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.151665][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.151665][ T10] ipv6_find_idev+0x102/0x170 [ 1906.151665][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.151665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.151665][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.151665][ T10] netlink_unicast+0x449/0x710 [ 1906.151665][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.151665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.151665][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.151665][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.151665][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.151665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.151665][ T10] [ 1906.153349][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1906.153621][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1906.153621][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.153621][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.153621][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.153621][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.153621][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.153621][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.153621][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.153621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.153621][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.153621][ T10] netlink_unicast+0x449/0x710 [ 1906.153621][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.153621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.153621][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.153621][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.153621][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.153621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.153621][ T10] [ 1906.155594][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1906.155594][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.155594][ T10] ipv6_find_idev+0x102/0x170 [ 1906.155594][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.155594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.155594][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.155594][ T10] netlink_unicast+0x449/0x710 [ 1906.155594][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.155594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.155594][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.155594][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.155594][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.155594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.155594][ T10] [ 1906.157107][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1906.157107][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.157107][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.157107][ T10] ipv6_find_idev+0x102/0x170 [ 1906.157107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.157107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.157107][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.157107][ T10] netlink_unicast+0x449/0x710 [ 1906.157107][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.157107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.157107][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.157107][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.157107][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.157107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.157107][ T10] [ 1906.158826][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1906.159095][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1906.159095][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.159095][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.159095][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.159095][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.159095][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.159095][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.159095][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.159095][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.159095][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.159095][ T10] netlink_unicast+0x449/0x710 [ 1906.159095][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.159095][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.159095][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.159095][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.159095][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.159095][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.159095][ T10] [ 1906.161056][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1906.161056][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.161056][ T10] ipv6_find_idev+0x102/0x170 [ 1906.161056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.161056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.161056][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.161056][ T10] netlink_unicast+0x449/0x710 [ 1906.161056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.161056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.161056][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.161056][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.161056][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.161056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.161056][ T10] [ 1906.162569][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1906.162569][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.162569][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.162569][ T10] ipv6_find_idev+0x102/0x170 [ 1906.162569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.162569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.162569][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.162569][ T10] netlink_unicast+0x449/0x710 [ 1906.162569][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.162569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.162569][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.162569][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.162569][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.162569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.162569][ T10] [ 1906.164291][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1906.164641][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1906.164641][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.164641][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.164641][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.164641][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.164641][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.164641][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.164641][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.164641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.164641][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.164641][ T10] netlink_unicast+0x449/0x710 [ 1906.164641][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.164641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.164641][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.164641][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.164641][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.164641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.164641][ T10] [ 1906.166623][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1906.166623][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.166623][ T10] ipv6_find_idev+0x102/0x170 [ 1906.166623][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.166623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.166623][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.166623][ T10] netlink_unicast+0x449/0x710 [ 1906.166623][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.166623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.166623][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.166623][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.166623][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.166623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.166623][ T10] [ 1906.168132][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1906.168132][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.168132][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.168132][ T10] ipv6_find_idev+0x102/0x170 [ 1906.168132][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.168132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.168132][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.168132][ T10] netlink_unicast+0x449/0x710 [ 1906.168132][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.168132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.168132][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.168132][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.168132][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.168132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.168132][ T10] [ 1906.169858][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1906.170129][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1906.170129][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.170129][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.170129][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.170129][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.170129][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.170129][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.170129][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.170129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.170129][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.170129][ T10] netlink_unicast+0x449/0x710 [ 1906.170129][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.170129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.170129][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.170129][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.170129][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.170129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.170129][ T10] [ 1906.172128][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1906.172128][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.172128][ T10] ipv6_find_idev+0x102/0x170 [ 1906.172128][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.172128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.172128][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.172128][ T10] netlink_unicast+0x449/0x710 [ 1906.172128][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.172128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.172128][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.172128][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.172128][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.172128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.172128][ T10] [ 1906.173704][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1906.173704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.173704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.173704][ T10] ipv6_find_idev+0x102/0x170 [ 1906.173704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.173704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.173704][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.173704][ T10] netlink_unicast+0x449/0x710 [ 1906.173704][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.173704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.173704][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.173704][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.173704][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.173704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.173704][ T10] [ 1906.175674][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1906.175937][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1906.175937][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.175937][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.175937][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.175937][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.175937][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.175937][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.175937][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.175937][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.175937][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.175937][ T10] netlink_unicast+0x449/0x710 [ 1906.175937][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.175937][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.175937][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.175937][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.175937][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.175937][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.175937][ T10] [ 1906.178177][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1906.178177][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.178177][ T10] ipv6_find_idev+0x102/0x170 [ 1906.178177][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.178177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.178177][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.178177][ T10] netlink_unicast+0x449/0x710 [ 1906.178177][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.178177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.178177][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.178177][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.178177][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.178177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.178177][ T10] [ 1906.179748][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1906.179748][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.179748][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.179748][ T10] ipv6_find_idev+0x102/0x170 [ 1906.179748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.179748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.179748][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.179748][ T10] netlink_unicast+0x449/0x710 [ 1906.179748][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.179748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.179748][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.179748][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.179748][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.179748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.179748][ T10] [ 1906.181741][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1906.182110][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1906.182110][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.182110][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.182110][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.182110][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.182110][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.182110][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.182110][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.182110][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.182110][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.182110][ T10] netlink_unicast+0x449/0x710 [ 1906.182110][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.182110][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.182110][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.182110][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.182110][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.182110][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.182110][ T10] [ 1906.184288][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1906.184288][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.184288][ T10] ipv6_find_idev+0x102/0x170 [ 1906.184288][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.184288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.184288][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.184288][ T10] netlink_unicast+0x449/0x710 [ 1906.184288][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.184288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.184288][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.184288][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.184288][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.184288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.184288][ T10] [ 1906.185993][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1906.185993][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.185993][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.185993][ T10] ipv6_find_idev+0x102/0x170 [ 1906.185993][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.185993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.185993][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.185993][ T10] netlink_unicast+0x449/0x710 [ 1906.185993][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.185993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.185993][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.185993][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.185993][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.185993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.185993][ T10] [ 1906.187923][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1906.188189][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1906.188189][ T10] netdev_get_by_index+0x5e/0x80 [ 1906.188189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1906.188189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1906.188189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1906.188189][ T10] ipv6_add_addr+0x411/0x2000 [ 1906.188189][ T10] inet6_addr_add+0x30e/0xa40 [ 1906.188189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1906.188189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.188189][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.188189][ T10] netlink_unicast+0x449/0x710 [ 1906.188189][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.188189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.188189][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.188189][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.188189][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.188189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.188189][ T10] [ 1906.190213][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1906.190213][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1906.190213][ T10] ipv6_find_idev+0x102/0x170 [ 1906.190213][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.190213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.190213][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.190213][ T10] netlink_unicast+0x449/0x710 [ 1906.190213][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.190213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.190213][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.190213][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.190213][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.190213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.190213][ T10] [ 1906.191914][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1906.191914][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1906.191914][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1906.191914][ T10] ipv6_find_idev+0x102/0x170 [ 1906.191914][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1906.191914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1906.191914][ T10] netlink_rcv_skb+0x130/0x360 [ 1906.191914][ T10] netlink_unicast+0x449/0x710 [ 1906.191914][ T10] netlink_sendmsg+0x723/0xbe0 [ 1906.191914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1906.191914][ T10] ___sys_sendmsg+0xee/0x170 [ 1906.191914][ T10] __sys_sendmsg+0xcd/0x170 [ 1906.191914][ T10] do_syscall_64+0xc6/0x1e0 [ 1906.191914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1906.191914][ T10] [ 1916.331779][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1916.332106][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1916.332106][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.332106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.332106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.332106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.332106][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.332106][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.332106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.332106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.332106][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.332106][ T10] netlink_unicast+0x449/0x710 [ 1916.332106][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.332106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.332106][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.332106][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.332106][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.332106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.332106][ T10] [ 1916.334113][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1916.334113][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.334113][ T10] ipv6_find_idev+0x102/0x170 [ 1916.334113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.334113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.334113][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.334113][ T10] netlink_unicast+0x449/0x710 [ 1916.334113][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.334113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.334113][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.334113][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.334113][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.334113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.334113][ T10] [ 1916.335627][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1916.335627][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.335627][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.335627][ T10] ipv6_find_idev+0x102/0x170 [ 1916.335627][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.335627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.335627][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.335627][ T10] netlink_unicast+0x449/0x710 [ 1916.335627][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.335627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.335627][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.335627][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.335627][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.335627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.335627][ T10] [ 1916.337303][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1916.337569][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1916.337569][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.337569][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.337569][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.337569][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.337569][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.337569][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.337569][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.337569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.337569][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.337569][ T10] netlink_unicast+0x449/0x710 [ 1916.337569][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.337569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.337569][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.337569][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.337569][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.337569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.337569][ T10] [ 1916.339545][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1916.339545][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.339545][ T10] ipv6_find_idev+0x102/0x170 [ 1916.339545][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.339545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.339545][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.339545][ T10] netlink_unicast+0x449/0x710 [ 1916.339545][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.339545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.339545][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.339545][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.339545][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.339545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.339545][ T10] [ 1916.341068][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1916.341068][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.341068][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.341068][ T10] ipv6_find_idev+0x102/0x170 [ 1916.341068][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.341068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.341068][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.341068][ T10] netlink_unicast+0x449/0x710 [ 1916.341068][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.341068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.341068][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.341068][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.341068][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.341068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.341068][ T10] [ 1916.342800][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1916.343066][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1916.343066][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.343066][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.343066][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.343066][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.343066][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.343066][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.343066][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.343066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.343066][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.343066][ T10] netlink_unicast+0x449/0x710 [ 1916.343066][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.343066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.343066][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.343066][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.343066][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.343066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.343066][ T10] [ 1916.345058][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1916.345058][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.345058][ T10] ipv6_find_idev+0x102/0x170 [ 1916.345058][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.345058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.345058][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.345058][ T10] netlink_unicast+0x449/0x710 [ 1916.345058][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.345058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.345058][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.345058][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.345058][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.345058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.345058][ T10] [ 1916.346581][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1916.346581][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.346581][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.346581][ T10] ipv6_find_idev+0x102/0x170 [ 1916.346581][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.346581][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.346581][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.346581][ T10] netlink_unicast+0x449/0x710 [ 1916.346581][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.346581][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.346581][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.346581][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.346581][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.346581][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.346581][ T10] [ 1916.348276][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1916.348542][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1916.348542][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.348542][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.348542][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.348542][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.348542][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.348542][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.348542][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.348542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.348542][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.348542][ T10] netlink_unicast+0x449/0x710 [ 1916.348542][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.348542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.348542][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.348542][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.348542][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.348542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.348542][ T10] [ 1916.350512][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1916.350512][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.350512][ T10] ipv6_find_idev+0x102/0x170 [ 1916.350512][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.350512][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.350512][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.350512][ T10] netlink_unicast+0x449/0x710 [ 1916.350512][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.350512][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.350512][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.350512][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.350512][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.350512][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.350512][ T10] [ 1916.352171][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1916.352171][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.352171][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.352171][ T10] ipv6_find_idev+0x102/0x170 [ 1916.352171][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.352171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.352171][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.352171][ T10] netlink_unicast+0x449/0x710 [ 1916.352171][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.352171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.352171][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.352171][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.352171][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.352171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.352171][ T10] [ 1916.354111][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1916.354375][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1916.354375][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.354375][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.354375][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.354375][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.354375][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.354375][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.354375][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.354375][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.354375][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.354375][ T10] netlink_unicast+0x449/0x710 [ 1916.354375][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.354375][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.354375][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.354375][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.354375][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.354375][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.354375][ T10] [ 1916.356528][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1916.356528][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.356528][ T10] ipv6_find_idev+0x102/0x170 [ 1916.356528][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.356528][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.356528][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.356528][ T10] netlink_unicast+0x449/0x710 [ 1916.356528][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.356528][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.356528][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.356528][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.356528][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.356528][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.356528][ T10] [ 1916.358097][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1916.358097][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.358097][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.358097][ T10] ipv6_find_idev+0x102/0x170 [ 1916.358097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.358097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.358097][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.358097][ T10] netlink_unicast+0x449/0x710 [ 1916.358097][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.358097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.358097][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.358097][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.358097][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.358097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.358097][ T10] [ 1916.359995][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1916.360262][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1916.360262][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.360262][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.360262][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.360262][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.360262][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.360262][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.360262][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.360262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.360262][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.360262][ T10] netlink_unicast+0x449/0x710 [ 1916.360262][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.360262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.360262][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.360262][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.360262][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.360262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.360262][ T10] [ 1916.362361][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1916.362361][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.362361][ T10] ipv6_find_idev+0x102/0x170 [ 1916.362361][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.362361][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.362361][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.362361][ T10] netlink_unicast+0x449/0x710 [ 1916.362361][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.362361][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.362361][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.362361][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.362361][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.362361][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.362361][ T10] [ 1916.364125][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1916.364125][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.364125][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.364125][ T10] ipv6_find_idev+0x102/0x170 [ 1916.364125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.364125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.364125][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.364125][ T10] netlink_unicast+0x449/0x710 [ 1916.364125][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.364125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.364125][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.364125][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.364125][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.364125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.364125][ T10] [ 1916.366387][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1916.367120][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1916.367120][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.367120][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.367120][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.367120][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.367120][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.367120][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.367120][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.367120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.367120][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.367120][ T10] netlink_unicast+0x449/0x710 [ 1916.367120][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.367120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.367120][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.367120][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.367120][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.367120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.367120][ T10] [ 1916.369083][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1916.369083][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.369083][ T10] ipv6_find_idev+0x102/0x170 [ 1916.369083][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.369083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.369083][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.369083][ T10] netlink_unicast+0x449/0x710 [ 1916.369083][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.369083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.369083][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.369083][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.369083][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.369083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.369083][ T10] [ 1916.370594][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1916.370594][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.370594][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.370594][ T10] ipv6_find_idev+0x102/0x170 [ 1916.370594][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.370594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.370594][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.370594][ T10] netlink_unicast+0x449/0x710 [ 1916.370594][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.370594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.370594][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.370594][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.370594][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.370594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.370594][ T10] [ 1916.372303][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1916.372568][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1916.372568][ T10] netdev_get_by_index+0x5e/0x80 [ 1916.372568][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1916.372568][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1916.372568][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1916.372568][ T10] ipv6_add_addr+0x411/0x2000 [ 1916.372568][ T10] inet6_addr_add+0x30e/0xa40 [ 1916.372568][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1916.372568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.372568][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.372568][ T10] netlink_unicast+0x449/0x710 [ 1916.372568][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.372568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.372568][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.372568][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.372568][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.372568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.372568][ T10] [ 1916.374558][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1916.374558][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1916.374558][ T10] ipv6_find_idev+0x102/0x170 [ 1916.374558][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.374558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.374558][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.374558][ T10] netlink_unicast+0x449/0x710 [ 1916.374558][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.374558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.374558][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.374558][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.374558][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.374558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.374558][ T10] [ 1916.376076][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1916.376076][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1916.376076][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1916.376076][ T10] ipv6_find_idev+0x102/0x170 [ 1916.376076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1916.376076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1916.376076][ T10] netlink_rcv_skb+0x130/0x360 [ 1916.376076][ T10] netlink_unicast+0x449/0x710 [ 1916.376076][ T10] netlink_sendmsg+0x723/0xbe0 [ 1916.376076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1916.376076][ T10] ___sys_sendmsg+0xee/0x170 [ 1916.376076][ T10] __sys_sendmsg+0xcd/0x170 [ 1916.376076][ T10] do_syscall_64+0xc6/0x1e0 [ 1916.376076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1916.376076][ T10] [ 1926.619691][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1926.620130][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1926.620130][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.620130][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.620130][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.620130][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.620130][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.620130][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.620130][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.620130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.620130][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.620130][ T10] netlink_unicast+0x449/0x710 [ 1926.620130][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.620130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.620130][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.620130][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.620130][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.620130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.620130][ T10] [ 1926.622201][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1926.622201][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.622201][ T10] ipv6_find_idev+0x102/0x170 [ 1926.622201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.622201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.622201][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.622201][ T10] netlink_unicast+0x449/0x710 [ 1926.622201][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.622201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.622201][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.622201][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.622201][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.622201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.622201][ T10] [ 1926.623744][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1926.623744][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.623744][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.623744][ T10] ipv6_find_idev+0x102/0x170 [ 1926.623744][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.623744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.623744][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.623744][ T10] netlink_unicast+0x449/0x710 [ 1926.623744][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.623744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.623744][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.623744][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.623744][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.623744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.623744][ T10] [ 1926.625409][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1926.625685][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1926.625685][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.625685][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.625685][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.625685][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.625685][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.625685][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.625685][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.625685][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.625685][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.625685][ T10] netlink_unicast+0x449/0x710 [ 1926.625685][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.625685][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.625685][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.625685][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.625685][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.625685][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.625685][ T10] [ 1926.627649][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1926.627649][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.627649][ T10] ipv6_find_idev+0x102/0x170 [ 1926.627649][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.627649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.627649][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.627649][ T10] netlink_unicast+0x449/0x710 [ 1926.627649][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.627649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.627649][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.627649][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.627649][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.627649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.627649][ T10] [ 1926.629167][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1926.629167][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.629167][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.629167][ T10] ipv6_find_idev+0x102/0x170 [ 1926.629167][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.629167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.629167][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.629167][ T10] netlink_unicast+0x449/0x710 [ 1926.629167][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.629167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.629167][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.629167][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.629167][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.629167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.629167][ T10] [ 1926.630836][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1926.631111][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1926.631111][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.631111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.631111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.631111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.631111][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.631111][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.631111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.631111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.631111][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.631111][ T10] netlink_unicast+0x449/0x710 [ 1926.631111][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.631111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.631111][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.631111][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.631111][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.631111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.631111][ T10] [ 1926.633074][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1926.633074][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.633074][ T10] ipv6_find_idev+0x102/0x170 [ 1926.633074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.633074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.633074][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.633074][ T10] netlink_unicast+0x449/0x710 [ 1926.633074][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.633074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.633074][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.633074][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.633074][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.633074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.633074][ T10] [ 1926.634593][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1926.634593][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.634593][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.634593][ T10] ipv6_find_idev+0x102/0x170 [ 1926.634593][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.634593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.634593][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.634593][ T10] netlink_unicast+0x449/0x710 [ 1926.634593][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.634593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.634593][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.634593][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.634593][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.634593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.634593][ T10] [ 1926.636267][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1926.636527][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1926.636527][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.636527][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.636527][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.636527][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.636527][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.636527][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.636527][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.636527][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.636527][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.636527][ T10] netlink_unicast+0x449/0x710 [ 1926.636527][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.636527][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.636527][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.636527][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.636527][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.636527][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.636527][ T10] [ 1926.638498][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1926.638498][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.638498][ T10] ipv6_find_idev+0x102/0x170 [ 1926.638498][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.638498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.638498][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.638498][ T10] netlink_unicast+0x449/0x710 [ 1926.638498][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.638498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.638498][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.638498][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.638498][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.638498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.638498][ T10] [ 1926.640012][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1926.640012][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.640012][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.640012][ T10] ipv6_find_idev+0x102/0x170 [ 1926.640012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.640012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.640012][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.640012][ T10] netlink_unicast+0x449/0x710 [ 1926.640012][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.640012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.640012][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.640012][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.640012][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.640012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.640012][ T10] [ 1926.642085][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1926.642348][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1926.642348][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.642348][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.642348][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.642348][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.642348][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.642348][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.642348][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.642348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.642348][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.642348][ T10] netlink_unicast+0x449/0x710 [ 1926.642348][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.642348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.642348][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.642348][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.642348][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.642348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.642348][ T10] [ 1926.644301][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1926.644301][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.644301][ T10] ipv6_find_idev+0x102/0x170 [ 1926.644301][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.644301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.644301][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.644301][ T10] netlink_unicast+0x449/0x710 [ 1926.644301][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.644301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.644301][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.644301][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.644301][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.644301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.644301][ T10] [ 1926.645808][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1926.645808][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.645808][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.645808][ T10] ipv6_find_idev+0x102/0x170 [ 1926.645808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.645808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.645808][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.645808][ T10] netlink_unicast+0x449/0x710 [ 1926.645808][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.645808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.645808][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.645808][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.645808][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.645808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.645808][ T10] [ 1926.647509][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1926.647827][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1926.647827][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.647827][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.647827][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.647827][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.647827][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.647827][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.647827][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.647827][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.647827][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.647827][ T10] netlink_unicast+0x449/0x710 [ 1926.647827][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.647827][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.647827][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.647827][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.647827][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.647827][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.647827][ T10] [ 1926.649861][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1926.649861][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.649861][ T10] ipv6_find_idev+0x102/0x170 [ 1926.649861][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.649861][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.649861][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.649861][ T10] netlink_unicast+0x449/0x710 [ 1926.649861][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.649861][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.649861][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.649861][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.649861][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.649861][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.649861][ T10] [ 1926.651621][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1926.651621][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.651621][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.651621][ T10] ipv6_find_idev+0x102/0x170 [ 1926.651621][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.651621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.651621][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.651621][ T10] netlink_unicast+0x449/0x710 [ 1926.651621][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.651621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.651621][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.651621][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.651621][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.651621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.651621][ T10] [ 1926.653504][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1926.653816][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1926.653816][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.653816][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.653816][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.653816][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.653816][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.653816][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.653816][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.653816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.653816][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.653816][ T10] netlink_unicast+0x449/0x710 [ 1926.653816][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.653816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.653816][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.653816][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.653816][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.653816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.653816][ T10] [ 1926.655955][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1926.655955][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.655955][ T10] ipv6_find_idev+0x102/0x170 [ 1926.655955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.655955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.655955][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.655955][ T10] netlink_unicast+0x449/0x710 [ 1926.655955][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.655955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.655955][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.655955][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.655955][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.655955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.655955][ T10] [ 1926.657648][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1926.657648][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.657648][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.657648][ T10] ipv6_find_idev+0x102/0x170 [ 1926.657648][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.657648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.657648][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.657648][ T10] netlink_unicast+0x449/0x710 [ 1926.657648][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.657648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.657648][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.657648][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.657648][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.657648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.657648][ T10] [ 1926.659576][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1926.659887][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1926.659887][ T10] netdev_get_by_index+0x5e/0x80 [ 1926.659887][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1926.659887][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1926.659887][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1926.659887][ T10] ipv6_add_addr+0x411/0x2000 [ 1926.659887][ T10] inet6_addr_add+0x30e/0xa40 [ 1926.659887][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1926.659887][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.659887][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.659887][ T10] netlink_unicast+0x449/0x710 [ 1926.659887][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.659887][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.659887][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.659887][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.659887][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.659887][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.659887][ T10] [ 1926.662095][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1926.662095][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1926.662095][ T10] ipv6_find_idev+0x102/0x170 [ 1926.662095][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.662095][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.662095][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.662095][ T10] netlink_unicast+0x449/0x710 [ 1926.662095][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.662095][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.662095][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.662095][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.662095][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.662095][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.662095][ T10] [ 1926.663794][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1926.663794][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1926.663794][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1926.663794][ T10] ipv6_find_idev+0x102/0x170 [ 1926.663794][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1926.663794][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1926.663794][ T10] netlink_rcv_skb+0x130/0x360 [ 1926.663794][ T10] netlink_unicast+0x449/0x710 [ 1926.663794][ T10] netlink_sendmsg+0x723/0xbe0 [ 1926.663794][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1926.663794][ T10] ___sys_sendmsg+0xee/0x170 [ 1926.663794][ T10] __sys_sendmsg+0xcd/0x170 [ 1926.663794][ T10] do_syscall_64+0xc6/0x1e0 [ 1926.663794][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1926.663794][ T10] [ 1936.811748][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1936.812179][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1936.812179][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.812179][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.812179][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.812179][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.812179][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.812179][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.812179][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.812179][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.812179][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.812179][ T10] netlink_unicast+0x449/0x710 [ 1936.812179][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.812179][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.812179][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.812179][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.812179][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.812179][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.812179][ T10] [ 1936.814181][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1936.814181][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.814181][ T10] ipv6_find_idev+0x102/0x170 [ 1936.814181][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.814181][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.814181][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.814181][ T10] netlink_unicast+0x449/0x710 [ 1936.814181][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.814181][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.814181][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.814181][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.814181][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.814181][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.814181][ T10] [ 1936.815705][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1936.815705][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.815705][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.815705][ T10] ipv6_find_idev+0x102/0x170 [ 1936.815705][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.815705][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.815705][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.815705][ T10] netlink_unicast+0x449/0x710 [ 1936.815705][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.815705][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.815705][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.815705][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.815705][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.815705][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.815705][ T10] [ 1936.817378][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1936.817651][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1936.817651][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.817651][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.817651][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.817651][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.817651][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.817651][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.817651][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.817651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.817651][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.817651][ T10] netlink_unicast+0x449/0x710 [ 1936.817651][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.817651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.817651][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.817651][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.817651][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.817651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.817651][ T10] [ 1936.819622][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1936.819622][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.819622][ T10] ipv6_find_idev+0x102/0x170 [ 1936.819622][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.819622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.819622][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.819622][ T10] netlink_unicast+0x449/0x710 [ 1936.819622][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.819622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.819622][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.819622][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.819622][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.819622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.819622][ T10] [ 1936.821152][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1936.821152][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.821152][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.821152][ T10] ipv6_find_idev+0x102/0x170 [ 1936.821152][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.821152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.821152][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.821152][ T10] netlink_unicast+0x449/0x710 [ 1936.821152][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.821152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.821152][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.821152][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.821152][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.821152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.821152][ T10] [ 1936.822817][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1936.823085][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1936.823085][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.823085][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.823085][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.823085][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.823085][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.823085][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.823085][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.823085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.823085][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.823085][ T10] netlink_unicast+0x449/0x710 [ 1936.823085][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.823085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.823085][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.823085][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.823085][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.823085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.823085][ T10] [ 1936.825045][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1936.825045][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.825045][ T10] ipv6_find_idev+0x102/0x170 [ 1936.825045][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.825045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.825045][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.825045][ T10] netlink_unicast+0x449/0x710 [ 1936.825045][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.825045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.825045][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.825045][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.825045][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.825045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.825045][ T10] [ 1936.826569][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1936.826569][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.826569][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.826569][ T10] ipv6_find_idev+0x102/0x170 [ 1936.826569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.826569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.826569][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.826569][ T10] netlink_unicast+0x449/0x710 [ 1936.826569][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.826569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.826569][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.826569][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.826569][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.826569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.826569][ T10] [ 1936.828228][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1936.828488][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1936.828488][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.828488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.828488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.828488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.828488][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.828488][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.828488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.828488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.828488][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.828488][ T10] netlink_unicast+0x449/0x710 [ 1936.828488][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.828488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.828488][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.828488][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.828488][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.828488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.828488][ T10] [ 1936.830453][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1936.830453][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.830453][ T10] ipv6_find_idev+0x102/0x170 [ 1936.830453][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.830453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.830453][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.830453][ T10] netlink_unicast+0x449/0x710 [ 1936.830453][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.830453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.830453][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.830453][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.830453][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.830453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.830453][ T10] [ 1936.831980][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1936.831980][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.831980][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.831980][ T10] ipv6_find_idev+0x102/0x170 [ 1936.831980][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.831980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.831980][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.831980][ T10] netlink_unicast+0x449/0x710 [ 1936.831980][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.831980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.831980][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.831980][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.831980][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.831980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.831980][ T10] [ 1936.834042][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1936.834302][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1936.834302][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.834302][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.834302][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.834302][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.834302][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.834302][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.834302][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.834302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.834302][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.834302][ T10] netlink_unicast+0x449/0x710 [ 1936.834302][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.834302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.834302][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.834302][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.834302][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.834302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.834302][ T10] [ 1936.836273][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1936.836273][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.836273][ T10] ipv6_find_idev+0x102/0x170 [ 1936.836273][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.836273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.836273][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.836273][ T10] netlink_unicast+0x449/0x710 [ 1936.836273][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.836273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.836273][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.836273][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.836273][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.836273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.836273][ T10] [ 1936.837785][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1936.837785][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.837785][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.837785][ T10] ipv6_find_idev+0x102/0x170 [ 1936.837785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.837785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.837785][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.837785][ T10] netlink_unicast+0x449/0x710 [ 1936.837785][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.837785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.837785][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.837785][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.837785][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.837785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.837785][ T10] [ 1936.839485][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1936.839802][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1936.839802][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.839802][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.839802][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.839802][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.839802][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.839802][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.839802][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.839802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.839802][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.839802][ T10] netlink_unicast+0x449/0x710 [ 1936.839802][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.839802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.839802][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.839802][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.839802][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.839802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.839802][ T10] [ 1936.841903][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1936.841903][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.841903][ T10] ipv6_find_idev+0x102/0x170 [ 1936.841903][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.841903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.841903][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.841903][ T10] netlink_unicast+0x449/0x710 [ 1936.841903][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.841903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.841903][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.841903][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.841903][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.841903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.841903][ T10] [ 1936.843605][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1936.843605][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.843605][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.843605][ T10] ipv6_find_idev+0x102/0x170 [ 1936.843605][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.843605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.843605][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.843605][ T10] netlink_unicast+0x449/0x710 [ 1936.843605][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.843605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.843605][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.843605][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.843605][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.843605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.843605][ T10] [ 1936.845559][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1936.845870][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1936.845870][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.845870][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.845870][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.845870][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.845870][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.845870][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.845870][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.845870][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.845870][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.845870][ T10] netlink_unicast+0x449/0x710 [ 1936.845870][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.845870][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.845870][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.845870][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.845870][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.845870][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.845870][ T10] [ 1936.848022][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1936.848022][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.848022][ T10] ipv6_find_idev+0x102/0x170 [ 1936.848022][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.848022][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.848022][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.848022][ T10] netlink_unicast+0x449/0x710 [ 1936.848022][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.848022][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.848022][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.848022][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.848022][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.848022][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.848022][ T10] [ 1936.849720][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1936.849720][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.849720][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.849720][ T10] ipv6_find_idev+0x102/0x170 [ 1936.849720][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.849720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.849720][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.849720][ T10] netlink_unicast+0x449/0x710 [ 1936.849720][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.849720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.849720][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.849720][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.849720][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.849720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.849720][ T10] [ 1936.851686][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1936.851947][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1936.851947][ T10] netdev_get_by_index+0x5e/0x80 [ 1936.851947][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1936.851947][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1936.851947][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1936.851947][ T10] ipv6_add_addr+0x411/0x2000 [ 1936.851947][ T10] inet6_addr_add+0x30e/0xa40 [ 1936.851947][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.851947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.851947][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.851947][ T10] netlink_unicast+0x449/0x710 [ 1936.851947][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.851947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.851947][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.851947][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.851947][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.851947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.851947][ T10] [ 1936.854093][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1936.854093][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1936.854093][ T10] ipv6_find_idev+0x102/0x170 [ 1936.854093][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.854093][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.854093][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.854093][ T10] netlink_unicast+0x449/0x710 [ 1936.854093][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.854093][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.854093][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.854093][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.854093][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.854093][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.854093][ T10] [ 1936.855847][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1936.855847][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1936.855847][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1936.855847][ T10] ipv6_find_idev+0x102/0x170 [ 1936.855847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.855847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.855847][ T10] netlink_rcv_skb+0x130/0x360 [ 1936.855847][ T10] netlink_unicast+0x449/0x710 [ 1936.855847][ T10] netlink_sendmsg+0x723/0xbe0 [ 1936.855847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1936.855847][ T10] ___sys_sendmsg+0xee/0x170 [ 1936.855847][ T10] __sys_sendmsg+0xcd/0x170 [ 1936.855847][ T10] do_syscall_64+0xc6/0x1e0 [ 1936.855847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.855847][ T10] [ 1946.893364][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1946.893846][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1946.893846][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.893846][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.893846][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.893846][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.893846][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.893846][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.893846][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.893846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.893846][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.893846][ T10] netlink_unicast+0x449/0x710 [ 1946.893846][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.893846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.893846][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.893846][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.893846][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.893846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.893846][ T10] [ 1946.895884][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1946.895884][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.895884][ T10] ipv6_find_idev+0x102/0x170 [ 1946.895884][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.895884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.895884][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.895884][ T10] netlink_unicast+0x449/0x710 [ 1946.895884][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.895884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.895884][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.895884][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.895884][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.895884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.895884][ T10] [ 1946.897451][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1946.897451][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.897451][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.897451][ T10] ipv6_find_idev+0x102/0x170 [ 1946.897451][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.897451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.897451][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.897451][ T10] netlink_unicast+0x449/0x710 [ 1946.897451][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.897451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.897451][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.897451][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.897451][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.897451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.897451][ T10] [ 1946.899164][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1946.899445][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1946.899445][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.899445][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.899445][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.899445][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.899445][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.899445][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.899445][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.899445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.899445][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.899445][ T10] netlink_unicast+0x449/0x710 [ 1946.899445][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.899445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.899445][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.899445][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.899445][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.899445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.899445][ T10] [ 1946.901450][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1946.901450][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.901450][ T10] ipv6_find_idev+0x102/0x170 [ 1946.901450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.901450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.901450][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.901450][ T10] netlink_unicast+0x449/0x710 [ 1946.901450][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.901450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.901450][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.901450][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.901450][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.901450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.901450][ T10] [ 1946.902990][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1946.902990][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.902990][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.902990][ T10] ipv6_find_idev+0x102/0x170 [ 1946.902990][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.902990][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.902990][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.902990][ T10] netlink_unicast+0x449/0x710 [ 1946.902990][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.902990][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.902990][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.902990][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.902990][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.902990][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.902990][ T10] [ 1946.904650][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1946.904914][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1946.904914][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.904914][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.904914][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.904914][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.904914][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.904914][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.904914][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.904914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.904914][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.904914][ T10] netlink_unicast+0x449/0x710 [ 1946.904914][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.904914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.904914][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.904914][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.904914][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.904914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.904914][ T10] [ 1946.907056][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1946.907056][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.907056][ T10] ipv6_find_idev+0x102/0x170 [ 1946.907056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.907056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.907056][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.907056][ T10] netlink_unicast+0x449/0x710 [ 1946.907056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.907056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.907056][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.907056][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.907056][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.907056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.907056][ T10] [ 1946.908671][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1946.908671][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.908671][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.908671][ T10] ipv6_find_idev+0x102/0x170 [ 1946.908671][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.908671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.908671][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.908671][ T10] netlink_unicast+0x449/0x710 [ 1946.908671][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.908671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.908671][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.908671][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.908671][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.908671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.908671][ T10] [ 1946.910403][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1946.910677][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1946.910677][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.910677][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.910677][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.910677][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.910677][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.910677][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.910677][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.910677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.910677][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.910677][ T10] netlink_unicast+0x449/0x710 [ 1946.910677][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.910677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.910677][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.910677][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.910677][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.910677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.910677][ T10] [ 1946.913040][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1946.913040][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.913040][ T10] ipv6_find_idev+0x102/0x170 [ 1946.913040][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.913040][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.913040][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.913040][ T10] netlink_unicast+0x449/0x710 [ 1946.913040][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.913040][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.913040][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.913040][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.913040][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.913040][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.913040][ T10] [ 1946.914657][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1946.914657][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.914657][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.914657][ T10] ipv6_find_idev+0x102/0x170 [ 1946.914657][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.914657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.914657][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.914657][ T10] netlink_unicast+0x449/0x710 [ 1946.914657][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.914657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.914657][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.914657][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.914657][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.914657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.914657][ T10] [ 1946.916670][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1946.916948][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1946.916948][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.916948][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.916948][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.916948][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.916948][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.916948][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.916948][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.916948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.916948][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.916948][ T10] netlink_unicast+0x449/0x710 [ 1946.916948][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.916948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.916948][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.916948][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.916948][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.916948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.916948][ T10] [ 1946.919182][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1946.919182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.919182][ T10] ipv6_find_idev+0x102/0x170 [ 1946.919182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.919182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.919182][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.919182][ T10] netlink_unicast+0x449/0x710 [ 1946.919182][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.919182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.919182][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.919182][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.919182][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.919182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.919182][ T10] [ 1946.920879][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1946.920879][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.920879][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.920879][ T10] ipv6_find_idev+0x102/0x170 [ 1946.920879][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.920879][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.920879][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.920879][ T10] netlink_unicast+0x449/0x710 [ 1946.920879][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.920879][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.920879][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.920879][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.920879][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.920879][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.920879][ T10] [ 1946.922866][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1946.923197][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1946.923197][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.923197][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.923197][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.923197][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.923197][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.923197][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.923197][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.923197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.923197][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.923197][ T10] netlink_unicast+0x449/0x710 [ 1946.923197][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.923197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.923197][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.923197][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.923197][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.923197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.923197][ T10] [ 1946.925456][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1946.925456][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.925456][ T10] ipv6_find_idev+0x102/0x170 [ 1946.925456][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.925456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.925456][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.925456][ T10] netlink_unicast+0x449/0x710 [ 1946.925456][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.925456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.925456][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.925456][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.925456][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.925456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.925456][ T10] [ 1946.927121][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1946.927121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.927121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.927121][ T10] ipv6_find_idev+0x102/0x170 [ 1946.927121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.927121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.927121][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.927121][ T10] netlink_unicast+0x449/0x710 [ 1946.927121][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.927121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.927121][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.927121][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.927121][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.927121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.927121][ T10] [ 1946.929057][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1946.929325][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1946.929325][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.929325][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.929325][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.929325][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.929325][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.929325][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.929325][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.929325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.929325][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.929325][ T10] netlink_unicast+0x449/0x710 [ 1946.929325][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.929325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.929325][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.929325][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.929325][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.929325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.929325][ T10] [ 1946.931415][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1946.931415][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.931415][ T10] ipv6_find_idev+0x102/0x170 [ 1946.931415][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.931415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.931415][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.931415][ T10] netlink_unicast+0x449/0x710 [ 1946.931415][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.931415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.931415][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.931415][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.931415][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.931415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.931415][ T10] [ 1946.933050][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1946.933050][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.933050][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.933050][ T10] ipv6_find_idev+0x102/0x170 [ 1946.933050][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.933050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.933050][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.933050][ T10] netlink_unicast+0x449/0x710 [ 1946.933050][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.933050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.933050][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.933050][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.933050][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.933050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.933050][ T10] [ 1946.934848][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1946.935111][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1946.935111][ T10] netdev_get_by_index+0x5e/0x80 [ 1946.935111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1946.935111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1946.935111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1946.935111][ T10] ipv6_add_addr+0x411/0x2000 [ 1946.935111][ T10] inet6_addr_add+0x30e/0xa40 [ 1946.935111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.935111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.935111][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.935111][ T10] netlink_unicast+0x449/0x710 [ 1946.935111][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.935111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.935111][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.935111][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.935111][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.935111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.935111][ T10] [ 1946.937415][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1946.937415][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1946.937415][ T10] ipv6_find_idev+0x102/0x170 [ 1946.937415][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.937415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.937415][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.937415][ T10] netlink_unicast+0x449/0x710 [ 1946.937415][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.937415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.937415][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.937415][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.937415][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.937415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.937415][ T10] [ 1946.939097][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1946.939097][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1946.939097][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1946.939097][ T10] ipv6_find_idev+0x102/0x170 [ 1946.939097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.939097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.939097][ T10] netlink_rcv_skb+0x130/0x360 [ 1946.939097][ T10] netlink_unicast+0x449/0x710 [ 1946.939097][ T10] netlink_sendmsg+0x723/0xbe0 [ 1946.939097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1946.939097][ T10] ___sys_sendmsg+0xee/0x170 [ 1946.939097][ T10] __sys_sendmsg+0xcd/0x170 [ 1946.939097][ T10] do_syscall_64+0xc6/0x1e0 [ 1946.939097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.939097][ T10] [ 1957.043667][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1957.043999][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1957.043999][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.043999][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.043999][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.043999][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.043999][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.043999][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.043999][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.043999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.043999][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.043999][ T10] netlink_unicast+0x449/0x710 [ 1957.043999][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.043999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.043999][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.043999][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.043999][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.043999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.043999][ T10] [ 1957.046018][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1957.046018][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.046018][ T10] ipv6_find_idev+0x102/0x170 [ 1957.046018][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.046018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.046018][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.046018][ T10] netlink_unicast+0x449/0x710 [ 1957.046018][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.046018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.046018][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.046018][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.046018][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.046018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.046018][ T10] [ 1957.047617][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1957.047617][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.047617][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.047617][ T10] ipv6_find_idev+0x102/0x170 [ 1957.047617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.047617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.047617][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.047617][ T10] netlink_unicast+0x449/0x710 [ 1957.047617][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.047617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.047617][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.047617][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.047617][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.047617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.047617][ T10] [ 1957.049360][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1957.049639][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1957.049639][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.049639][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.049639][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.049639][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.049639][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.049639][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.049639][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.049639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.049639][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.049639][ T10] netlink_unicast+0x449/0x710 [ 1957.049639][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.049639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.049639][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.049639][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.049639][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.049639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.049639][ T10] [ 1957.051651][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1957.051651][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.051651][ T10] ipv6_find_idev+0x102/0x170 [ 1957.051651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.051651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.051651][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.051651][ T10] netlink_unicast+0x449/0x710 [ 1957.051651][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.051651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.051651][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.051651][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.051651][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.051651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.051651][ T10] [ 1957.053199][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1957.053199][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.053199][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.053199][ T10] ipv6_find_idev+0x102/0x170 [ 1957.053199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.053199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.053199][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.053199][ T10] netlink_unicast+0x449/0x710 [ 1957.053199][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.053199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.053199][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.053199][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.053199][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.053199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.053199][ T10] [ 1957.054959][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1957.055229][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1957.055229][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.055229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.055229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.055229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.055229][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.055229][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.055229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.055229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.055229][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.055229][ T10] netlink_unicast+0x449/0x710 [ 1957.055229][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.055229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.055229][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.055229][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.055229][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.055229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.055229][ T10] [ 1957.057243][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1957.057243][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.057243][ T10] ipv6_find_idev+0x102/0x170 [ 1957.057243][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.057243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.057243][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.057243][ T10] netlink_unicast+0x449/0x710 [ 1957.057243][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.057243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.057243][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.057243][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.057243][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.057243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.057243][ T10] [ 1957.058782][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1957.058782][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.058782][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.058782][ T10] ipv6_find_idev+0x102/0x170 [ 1957.058782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.058782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.058782][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.058782][ T10] netlink_unicast+0x449/0x710 [ 1957.058782][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.058782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.058782][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.058782][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.058782][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.058782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.058782][ T10] [ 1957.060515][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1957.060877][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1957.060877][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.060877][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.060877][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.060877][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.060877][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.060877][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.060877][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.060877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.060877][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.060877][ T10] netlink_unicast+0x449/0x710 [ 1957.060877][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.060877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.060877][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.060877][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.060877][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.060877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.060877][ T10] [ 1957.063066][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1957.063066][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.063066][ T10] ipv6_find_idev+0x102/0x170 [ 1957.063066][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.063066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.063066][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.063066][ T10] netlink_unicast+0x449/0x710 [ 1957.063066][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.063066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.063066][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.063066][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.063066][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.063066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.063066][ T10] [ 1957.064848][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1957.064848][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.064848][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.064848][ T10] ipv6_find_idev+0x102/0x170 [ 1957.064848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.064848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.064848][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.064848][ T10] netlink_unicast+0x449/0x710 [ 1957.064848][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.064848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.064848][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.064848][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.064848][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.064848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.064848][ T10] [ 1957.066766][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1957.067029][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1957.067029][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.067029][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.067029][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.067029][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.067029][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.067029][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.067029][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.067029][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.067029][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.067029][ T10] netlink_unicast+0x449/0x710 [ 1957.067029][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.067029][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.067029][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.067029][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.067029][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.067029][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.067029][ T10] [ 1957.069230][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1957.069230][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.069230][ T10] ipv6_find_idev+0x102/0x170 [ 1957.069230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.069230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.069230][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.069230][ T10] netlink_unicast+0x449/0x710 [ 1957.069230][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.069230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.069230][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.069230][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.069230][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.069230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.069230][ T10] [ 1957.070946][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1957.070946][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.070946][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.070946][ T10] ipv6_find_idev+0x102/0x170 [ 1957.070946][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.070946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.070946][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.070946][ T10] netlink_unicast+0x449/0x710 [ 1957.070946][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.070946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.070946][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.070946][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.070946][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.070946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.070946][ T10] [ 1957.072964][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1957.073235][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1957.073235][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.073235][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.073235][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.073235][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.073235][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.073235][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.073235][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.073235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.073235][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.073235][ T10] netlink_unicast+0x449/0x710 [ 1957.073235][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.073235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.073235][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.073235][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.073235][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.073235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.073235][ T10] [ 1957.075455][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1957.075455][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.075455][ T10] ipv6_find_idev+0x102/0x170 [ 1957.075455][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.075455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.075455][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.075455][ T10] netlink_unicast+0x449/0x710 [ 1957.075455][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.075455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.075455][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.075455][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.075455][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.075455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.075455][ T10] [ 1957.077209][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1957.077209][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.077209][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.077209][ T10] ipv6_find_idev+0x102/0x170 [ 1957.077209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.077209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.077209][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.077209][ T10] netlink_unicast+0x449/0x710 [ 1957.077209][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.077209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.077209][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.077209][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.077209][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.077209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.077209][ T10] [ 1957.079247][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1957.079518][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1957.079518][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.079518][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.079518][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.079518][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.079518][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.079518][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.079518][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.079518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.079518][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.079518][ T10] netlink_unicast+0x449/0x710 [ 1957.079518][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.079518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.079518][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.079518][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.079518][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.079518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.079518][ T10] [ 1957.081543][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1957.081543][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.081543][ T10] ipv6_find_idev+0x102/0x170 [ 1957.081543][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.081543][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.081543][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.081543][ T10] netlink_unicast+0x449/0x710 [ 1957.081543][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.081543][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.081543][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.081543][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.081543][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.081543][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.081543][ T10] [ 1957.083251][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1957.083251][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.083251][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.083251][ T10] ipv6_find_idev+0x102/0x170 [ 1957.083251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.083251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.083251][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.083251][ T10] netlink_unicast+0x449/0x710 [ 1957.083251][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.083251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.083251][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.083251][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.083251][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.083251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.083251][ T10] [ 1957.085229][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1957.085503][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1957.085503][ T10] netdev_get_by_index+0x5e/0x80 [ 1957.085503][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1957.085503][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1957.085503][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1957.085503][ T10] ipv6_add_addr+0x411/0x2000 [ 1957.085503][ T10] inet6_addr_add+0x30e/0xa40 [ 1957.085503][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1957.085503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.085503][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.085503][ T10] netlink_unicast+0x449/0x710 [ 1957.085503][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.085503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.085503][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.085503][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.085503][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.085503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.085503][ T10] [ 1957.087695][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1957.087695][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1957.087695][ T10] ipv6_find_idev+0x102/0x170 [ 1957.087695][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.087695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.087695][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.087695][ T10] netlink_unicast+0x449/0x710 [ 1957.087695][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.087695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.087695][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.087695][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.087695][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.087695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.087695][ T10] [ 1957.089495][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1957.089495][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1957.089495][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1957.089495][ T10] ipv6_find_idev+0x102/0x170 [ 1957.089495][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1957.089495][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1957.089495][ T10] netlink_rcv_skb+0x130/0x360 [ 1957.089495][ T10] netlink_unicast+0x449/0x710 [ 1957.089495][ T10] netlink_sendmsg+0x723/0xbe0 [ 1957.089495][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1957.089495][ T10] ___sys_sendmsg+0xee/0x170 [ 1957.089495][ T10] __sys_sendmsg+0xcd/0x170 [ 1957.089495][ T10] do_syscall_64+0xc6/0x1e0 [ 1957.089495][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1957.089495][ T10] [ 1967.179662][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1967.180061][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1967.180061][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.180061][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.180061][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.180061][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.180061][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.180061][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.180061][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.180061][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.180061][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.180061][ T10] netlink_unicast+0x449/0x710 [ 1967.180061][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.180061][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.180061][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.180061][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.180061][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.180061][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.180061][ T10] [ 1967.182056][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1967.182056][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.182056][ T10] ipv6_find_idev+0x102/0x170 [ 1967.182056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.182056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.182056][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.182056][ T10] netlink_unicast+0x449/0x710 [ 1967.182056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.182056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.182056][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.182056][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.182056][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.182056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.182056][ T10] [ 1967.183596][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1967.183596][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.183596][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.183596][ T10] ipv6_find_idev+0x102/0x170 [ 1967.183596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.183596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.183596][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.183596][ T10] netlink_unicast+0x449/0x710 [ 1967.183596][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.183596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.183596][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.183596][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.183596][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.183596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.183596][ T10] [ 1967.185346][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1967.185609][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1967.185609][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.185609][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.185609][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.185609][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.185609][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.185609][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.185609][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.185609][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.185609][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.185609][ T10] netlink_unicast+0x449/0x710 [ 1967.185609][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.185609][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.185609][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.185609][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.185609][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.185609][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.185609][ T10] [ 1967.187564][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1967.187564][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.187564][ T10] ipv6_find_idev+0x102/0x170 [ 1967.187564][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.187564][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.187564][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.187564][ T10] netlink_unicast+0x449/0x710 [ 1967.187564][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.187564][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.187564][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.187564][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.187564][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.187564][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.187564][ T10] [ 1967.189076][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1967.189076][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.189076][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.189076][ T10] ipv6_find_idev+0x102/0x170 [ 1967.189076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.189076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.189076][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.189076][ T10] netlink_unicast+0x449/0x710 [ 1967.189076][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.189076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.189076][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.189076][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.189076][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.189076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.189076][ T10] [ 1967.190732][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1967.190992][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1967.190992][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.190992][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.190992][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.190992][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.190992][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.190992][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.190992][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.190992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.190992][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.190992][ T10] netlink_unicast+0x449/0x710 [ 1967.190992][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.190992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.190992][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.190992][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.190992][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.190992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.190992][ T10] [ 1967.192953][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1967.192953][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.192953][ T10] ipv6_find_idev+0x102/0x170 [ 1967.192953][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.192953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.192953][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.192953][ T10] netlink_unicast+0x449/0x710 [ 1967.192953][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.192953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.192953][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.192953][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.192953][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.192953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.192953][ T10] [ 1967.194493][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1967.194493][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.194493][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.194493][ T10] ipv6_find_idev+0x102/0x170 [ 1967.194493][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.194493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.194493][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.194493][ T10] netlink_unicast+0x449/0x710 [ 1967.194493][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.194493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.194493][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.194493][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.194493][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.194493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.194493][ T10] [ 1967.196526][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1967.197121][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1967.197121][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.197121][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.197121][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.197121][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.197121][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.197121][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.197121][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.197121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.197121][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.197121][ T10] netlink_unicast+0x449/0x710 [ 1967.197121][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.197121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.197121][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.197121][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.197121][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.197121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.197121][ T10] [ 1967.199083][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1967.199083][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.199083][ T10] ipv6_find_idev+0x102/0x170 [ 1967.199083][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.199083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.199083][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.199083][ T10] netlink_unicast+0x449/0x710 [ 1967.199083][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.199083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.199083][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.199083][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.199083][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.199083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.199083][ T10] [ 1967.200591][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1967.200591][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.200591][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.200591][ T10] ipv6_find_idev+0x102/0x170 [ 1967.200591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.200591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.200591][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.200591][ T10] netlink_unicast+0x449/0x710 [ 1967.200591][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.200591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.200591][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.200591][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.200591][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.200591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.200591][ T10] [ 1967.202234][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1967.202496][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1967.202496][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.202496][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.202496][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.202496][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.202496][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.202496][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.202496][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.202496][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.202496][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.202496][ T10] netlink_unicast+0x449/0x710 [ 1967.202496][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.202496][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.202496][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.202496][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.202496][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.202496][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.202496][ T10] [ 1967.204448][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1967.204448][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.204448][ T10] ipv6_find_idev+0x102/0x170 [ 1967.204448][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.204448][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.204448][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.204448][ T10] netlink_unicast+0x449/0x710 [ 1967.204448][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.204448][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.204448][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.204448][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.204448][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.204448][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.204448][ T10] [ 1967.205955][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1967.205955][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.205955][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.205955][ T10] ipv6_find_idev+0x102/0x170 [ 1967.205955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.205955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.205955][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.205955][ T10] netlink_unicast+0x449/0x710 [ 1967.205955][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.205955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.205955][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.205955][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.205955][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.205955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.205955][ T10] [ 1967.207630][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1967.207948][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1967.207948][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.207948][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.207948][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.207948][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.207948][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.207948][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.207948][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.207948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.207948][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.207948][ T10] netlink_unicast+0x449/0x710 [ 1967.207948][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.207948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.207948][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.207948][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.207948][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.207948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.207948][ T10] [ 1967.209901][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1967.209901][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.209901][ T10] ipv6_find_idev+0x102/0x170 [ 1967.209901][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.209901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.209901][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.209901][ T10] netlink_unicast+0x449/0x710 [ 1967.209901][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.209901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.209901][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.209901][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.209901][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.209901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.209901][ T10] [ 1967.211422][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1967.211422][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.211422][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.211422][ T10] ipv6_find_idev+0x102/0x170 [ 1967.211422][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.211422][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.211422][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.211422][ T10] netlink_unicast+0x449/0x710 [ 1967.211422][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.211422][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.211422][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.211422][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.211422][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.211422][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.211422][ T10] [ 1967.213226][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1967.213531][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1967.213531][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.213531][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.213531][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.213531][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.213531][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.213531][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.213531][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.213531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.213531][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.213531][ T10] netlink_unicast+0x449/0x710 [ 1967.213531][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.213531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.213531][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.213531][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.213531][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.213531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.213531][ T10] [ 1967.215665][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1967.215665][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.215665][ T10] ipv6_find_idev+0x102/0x170 [ 1967.215665][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.215665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.215665][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.215665][ T10] netlink_unicast+0x449/0x710 [ 1967.215665][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.215665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.215665][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.215665][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.215665][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.215665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.215665][ T10] [ 1967.217356][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1967.217356][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.217356][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.217356][ T10] ipv6_find_idev+0x102/0x170 [ 1967.217356][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.217356][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.217356][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.217356][ T10] netlink_unicast+0x449/0x710 [ 1967.217356][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.217356][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.217356][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.217356][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.217356][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.217356][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.217356][ T10] [ 1967.219307][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1967.219566][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1967.219566][ T10] netdev_get_by_index+0x5e/0x80 [ 1967.219566][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1967.219566][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1967.219566][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1967.219566][ T10] ipv6_add_addr+0x411/0x2000 [ 1967.219566][ T10] inet6_addr_add+0x30e/0xa40 [ 1967.219566][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1967.219566][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.219566][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.219566][ T10] netlink_unicast+0x449/0x710 [ 1967.219566][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.219566][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.219566][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.219566][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.219566][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.219566][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.219566][ T10] [ 1967.221711][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1967.221711][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1967.221711][ T10] ipv6_find_idev+0x102/0x170 [ 1967.221711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.221711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.221711][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.221711][ T10] netlink_unicast+0x449/0x710 [ 1967.221711][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.221711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.221711][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.221711][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.221711][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.221711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.221711][ T10] [ 1967.223399][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1967.223399][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1967.223399][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1967.223399][ T10] ipv6_find_idev+0x102/0x170 [ 1967.223399][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1967.223399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1967.223399][ T10] netlink_rcv_skb+0x130/0x360 [ 1967.223399][ T10] netlink_unicast+0x449/0x710 [ 1967.223399][ T10] netlink_sendmsg+0x723/0xbe0 [ 1967.223399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1967.223399][ T10] ___sys_sendmsg+0xee/0x170 [ 1967.223399][ T10] __sys_sendmsg+0xcd/0x170 [ 1967.223399][ T10] do_syscall_64+0xc6/0x1e0 [ 1967.223399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1967.223399][ T10] [ 1977.451831][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1977.452279][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1977.452279][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.452279][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.452279][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.452279][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.452279][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.452279][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.452279][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.452279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.452279][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.452279][ T10] netlink_unicast+0x449/0x710 [ 1977.452279][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.452279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.452279][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.452279][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.452279][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.452279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.452279][ T10] [ 1977.454303][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1977.454303][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.454303][ T10] ipv6_find_idev+0x102/0x170 [ 1977.454303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.454303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.454303][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.454303][ T10] netlink_unicast+0x449/0x710 [ 1977.454303][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.454303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.454303][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.454303][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.454303][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.454303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.454303][ T10] [ 1977.455846][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1977.455846][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.455846][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.455846][ T10] ipv6_find_idev+0x102/0x170 [ 1977.455846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.455846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.455846][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.455846][ T10] netlink_unicast+0x449/0x710 [ 1977.455846][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.455846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.455846][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.455846][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.455846][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.455846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.455846][ T10] [ 1977.457538][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1977.457826][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1977.457826][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.457826][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.457826][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.457826][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.457826][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.457826][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.457826][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.457826][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.457826][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.457826][ T10] netlink_unicast+0x449/0x710 [ 1977.457826][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.457826][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.457826][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.457826][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.457826][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.457826][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.457826][ T10] [ 1977.459812][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1977.459812][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.459812][ T10] ipv6_find_idev+0x102/0x170 [ 1977.459812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.459812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.459812][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.459812][ T10] netlink_unicast+0x449/0x710 [ 1977.459812][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.459812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.459812][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.459812][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.459812][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.459812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.459812][ T10] [ 1977.461351][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1977.461351][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.461351][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.461351][ T10] ipv6_find_idev+0x102/0x170 [ 1977.461351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.461351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.461351][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.461351][ T10] netlink_unicast+0x449/0x710 [ 1977.461351][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.461351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.461351][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.461351][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.461351][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.461351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.461351][ T10] [ 1977.463023][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1977.463290][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1977.463290][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.463290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.463290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.463290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.463290][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.463290][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.463290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.463290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.463290][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.463290][ T10] netlink_unicast+0x449/0x710 [ 1977.463290][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.463290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.463290][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.463290][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.463290][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.463290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.463290][ T10] [ 1977.465289][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1977.465289][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.465289][ T10] ipv6_find_idev+0x102/0x170 [ 1977.465289][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.465289][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.465289][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.465289][ T10] netlink_unicast+0x449/0x710 [ 1977.465289][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.465289][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.465289][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.465289][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.465289][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.465289][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.465289][ T10] [ 1977.466827][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1977.466827][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.466827][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.466827][ T10] ipv6_find_idev+0x102/0x170 [ 1977.466827][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.466827][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.466827][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.466827][ T10] netlink_unicast+0x449/0x710 [ 1977.466827][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.466827][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.466827][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.466827][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.466827][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.466827][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.466827][ T10] [ 1977.468509][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1977.469233][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1977.469233][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.469233][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.469233][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.469233][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.469233][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.469233][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.469233][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.469233][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.469233][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.469233][ T10] netlink_unicast+0x449/0x710 [ 1977.469233][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.469233][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.469233][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.469233][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.469233][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.469233][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.469233][ T10] [ 1977.471245][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1977.471245][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.471245][ T10] ipv6_find_idev+0x102/0x170 [ 1977.471245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.471245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.471245][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.471245][ T10] netlink_unicast+0x449/0x710 [ 1977.471245][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.471245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.471245][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.471245][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.471245][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.471245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.471245][ T10] [ 1977.472781][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1977.472781][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.472781][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.472781][ T10] ipv6_find_idev+0x102/0x170 [ 1977.472781][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.472781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.472781][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.472781][ T10] netlink_unicast+0x449/0x710 [ 1977.472781][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.472781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.472781][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.472781][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.472781][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.472781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.472781][ T10] [ 1977.474501][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1977.474818][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1977.474818][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.474818][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.474818][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.474818][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.474818][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.474818][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.474818][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.474818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.474818][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.474818][ T10] netlink_unicast+0x449/0x710 [ 1977.474818][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.474818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.474818][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.474818][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.474818][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.474818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.474818][ T10] [ 1977.476788][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1977.476788][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.476788][ T10] ipv6_find_idev+0x102/0x170 [ 1977.476788][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.476788][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.476788][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.476788][ T10] netlink_unicast+0x449/0x710 [ 1977.476788][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.476788][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.476788][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.476788][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.476788][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.476788][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.476788][ T10] [ 1977.478302][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1977.478302][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.478302][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.478302][ T10] ipv6_find_idev+0x102/0x170 [ 1977.478302][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.478302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.478302][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.478302][ T10] netlink_unicast+0x449/0x710 [ 1977.478302][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.478302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.478302][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.478302][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.478302][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.478302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.478302][ T10] [ 1977.479991][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1977.480254][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1977.480254][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.480254][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.480254][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.480254][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.480254][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.480254][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.480254][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.480254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.480254][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.480254][ T10] netlink_unicast+0x449/0x710 [ 1977.480254][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.480254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.480254][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.480254][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.480254][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.480254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.480254][ T10] [ 1977.482288][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1977.482288][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.482288][ T10] ipv6_find_idev+0x102/0x170 [ 1977.482288][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.482288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.482288][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.482288][ T10] netlink_unicast+0x449/0x710 [ 1977.482288][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.482288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.482288][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.482288][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.482288][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.482288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.482288][ T10] [ 1977.484043][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1977.484043][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.484043][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.484043][ T10] ipv6_find_idev+0x102/0x170 [ 1977.484043][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.484043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.484043][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.484043][ T10] netlink_unicast+0x449/0x710 [ 1977.484043][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.484043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.484043][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.484043][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.484043][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.484043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.484043][ T10] [ 1977.485924][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1977.486190][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1977.486190][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.486190][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.486190][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.486190][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.486190][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.486190][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.486190][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.486190][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.486190][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.486190][ T10] netlink_unicast+0x449/0x710 [ 1977.486190][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.486190][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.486190][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.486190][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.486190][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.486190][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.486190][ T10] [ 1977.488340][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1977.488340][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.488340][ T10] ipv6_find_idev+0x102/0x170 [ 1977.488340][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.488340][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.488340][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.488340][ T10] netlink_unicast+0x449/0x710 [ 1977.488340][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.488340][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.488340][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.488340][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.488340][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.488340][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.488340][ T10] [ 1977.490046][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1977.490046][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.490046][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.490046][ T10] ipv6_find_idev+0x102/0x170 [ 1977.490046][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.490046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.490046][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.490046][ T10] netlink_unicast+0x449/0x710 [ 1977.490046][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.490046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.490046][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.490046][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.490046][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.490046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.490046][ T10] [ 1977.491933][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1977.492194][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1977.492194][ T10] netdev_get_by_index+0x5e/0x80 [ 1977.492194][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1977.492194][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1977.492194][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1977.492194][ T10] ipv6_add_addr+0x411/0x2000 [ 1977.492194][ T10] inet6_addr_add+0x30e/0xa40 [ 1977.492194][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1977.492194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.492194][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.492194][ T10] netlink_unicast+0x449/0x710 [ 1977.492194][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.492194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.492194][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.492194][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.492194][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.492194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.492194][ T10] [ 1977.494461][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1977.494461][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1977.494461][ T10] ipv6_find_idev+0x102/0x170 [ 1977.494461][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.494461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.494461][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.494461][ T10] netlink_unicast+0x449/0x710 [ 1977.494461][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.494461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.494461][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.494461][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.494461][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.494461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.494461][ T10] [ 1977.496097][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1977.496097][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1977.496097][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1977.496097][ T10] ipv6_find_idev+0x102/0x170 [ 1977.496097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1977.496097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1977.496097][ T10] netlink_rcv_skb+0x130/0x360 [ 1977.496097][ T10] netlink_unicast+0x449/0x710 [ 1977.496097][ T10] netlink_sendmsg+0x723/0xbe0 [ 1977.496097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1977.496097][ T10] ___sys_sendmsg+0xee/0x170 [ 1977.496097][ T10] __sys_sendmsg+0xcd/0x170 [ 1977.496097][ T10] do_syscall_64+0xc6/0x1e0 [ 1977.496097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1977.496097][ T10] [ 1987.499773][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1987.500199][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1987.500199][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.500199][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.500199][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.500199][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.500199][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.500199][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.500199][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.500199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.500199][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.500199][ T10] netlink_unicast+0x449/0x710 [ 1987.500199][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.500199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.500199][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.500199][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.500199][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.500199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.500199][ T10] [ 1987.502198][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1987.502198][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.502198][ T10] ipv6_find_idev+0x102/0x170 [ 1987.502198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.502198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.502198][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.502198][ T10] netlink_unicast+0x449/0x710 [ 1987.502198][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.502198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.502198][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.502198][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.502198][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.502198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.502198][ T10] [ 1987.503729][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1987.503729][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.503729][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.503729][ T10] ipv6_find_idev+0x102/0x170 [ 1987.503729][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.503729][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.503729][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.503729][ T10] netlink_unicast+0x449/0x710 [ 1987.503729][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.503729][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.503729][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.503729][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.503729][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.503729][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.503729][ T10] [ 1987.505400][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1987.505672][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1987.505672][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.505672][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.505672][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.505672][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.505672][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.505672][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.505672][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.505672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.505672][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.505672][ T10] netlink_unicast+0x449/0x710 [ 1987.505672][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.505672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.505672][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.505672][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.505672][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.505672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.505672][ T10] [ 1987.507636][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1987.507636][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.507636][ T10] ipv6_find_idev+0x102/0x170 [ 1987.507636][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.507636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.507636][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.507636][ T10] netlink_unicast+0x449/0x710 [ 1987.507636][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.507636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.507636][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.507636][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.507636][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.507636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.507636][ T10] [ 1987.509147][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1987.509147][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.509147][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.509147][ T10] ipv6_find_idev+0x102/0x170 [ 1987.509147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.509147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.509147][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.509147][ T10] netlink_unicast+0x449/0x710 [ 1987.509147][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.509147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.509147][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.509147][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.509147][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.509147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.509147][ T10] [ 1987.510806][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1987.511068][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1987.511068][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.511068][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.511068][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.511068][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.511068][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.511068][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.511068][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.511068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.511068][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.511068][ T10] netlink_unicast+0x449/0x710 [ 1987.511068][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.511068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.511068][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.511068][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.511068][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.511068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.511068][ T10] [ 1987.513030][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1987.513030][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.513030][ T10] ipv6_find_idev+0x102/0x170 [ 1987.513030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.513030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.513030][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.513030][ T10] netlink_unicast+0x449/0x710 [ 1987.513030][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.513030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.513030][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.513030][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.513030][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.513030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.513030][ T10] [ 1987.514540][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1987.514540][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.514540][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.514540][ T10] ipv6_find_idev+0x102/0x170 [ 1987.514540][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.514540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.514540][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.514540][ T10] netlink_unicast+0x449/0x710 [ 1987.514540][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.514540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.514540][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.514540][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.514540][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.514540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.514540][ T10] [ 1987.516189][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1987.516457][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1987.516457][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.516457][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.516457][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.516457][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.516457][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.516457][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.516457][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.516457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.516457][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.516457][ T10] netlink_unicast+0x449/0x710 [ 1987.516457][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.516457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.516457][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.516457][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.516457][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.516457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.516457][ T10] [ 1987.518421][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1987.518421][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.518421][ T10] ipv6_find_idev+0x102/0x170 [ 1987.518421][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.518421][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.518421][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.518421][ T10] netlink_unicast+0x449/0x710 [ 1987.518421][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.518421][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.518421][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.518421][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.518421][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.518421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.518421][ T10] [ 1987.519932][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1987.519932][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.519932][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.519932][ T10] ipv6_find_idev+0x102/0x170 [ 1987.519932][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.519932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.519932][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.519932][ T10] netlink_unicast+0x449/0x710 [ 1987.519932][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.519932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.519932][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.519932][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.519932][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.519932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.519932][ T10] [ 1987.522015][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1987.522281][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1987.522281][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.522281][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.522281][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.522281][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.522281][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.522281][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.522281][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.522281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.522281][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.522281][ T10] netlink_unicast+0x449/0x710 [ 1987.522281][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.522281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.522281][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.522281][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.522281][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.522281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.522281][ T10] [ 1987.524237][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1987.524237][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.524237][ T10] ipv6_find_idev+0x102/0x170 [ 1987.524237][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.524237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.524237][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.524237][ T10] netlink_unicast+0x449/0x710 [ 1987.524237][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.524237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.524237][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.524237][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.524237][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.524237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.524237][ T10] [ 1987.525750][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1987.525750][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.525750][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.525750][ T10] ipv6_find_idev+0x102/0x170 [ 1987.525750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.525750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.525750][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.525750][ T10] netlink_unicast+0x449/0x710 [ 1987.525750][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.525750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.525750][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.525750][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.525750][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.525750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.525750][ T10] [ 1987.527443][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1987.527757][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1987.527757][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.527757][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.527757][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.527757][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.527757][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.527757][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.527757][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.527757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.527757][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.527757][ T10] netlink_unicast+0x449/0x710 [ 1987.527757][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.527757][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.527757][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.527757][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.527757][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.527757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.527757][ T10] [ 1987.529798][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1987.529798][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.529798][ T10] ipv6_find_idev+0x102/0x170 [ 1987.529798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.529798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.529798][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.529798][ T10] netlink_unicast+0x449/0x710 [ 1987.529798][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.529798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.529798][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.529798][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.529798][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.529798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.529798][ T10] [ 1987.531572][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1987.531572][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.531572][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.531572][ T10] ipv6_find_idev+0x102/0x170 [ 1987.531572][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.531572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.531572][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.531572][ T10] netlink_unicast+0x449/0x710 [ 1987.531572][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.531572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.531572][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.531572][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.531572][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.531572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.531572][ T10] [ 1987.533505][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1987.533823][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1987.533823][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.533823][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.533823][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.533823][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.533823][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.533823][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.533823][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.533823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.533823][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.533823][ T10] netlink_unicast+0x449/0x710 [ 1987.533823][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.533823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.533823][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.533823][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.533823][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.533823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.533823][ T10] [ 1987.535974][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1987.535974][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.535974][ T10] ipv6_find_idev+0x102/0x170 [ 1987.535974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.535974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.535974][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.535974][ T10] netlink_unicast+0x449/0x710 [ 1987.535974][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.535974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.535974][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.535974][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.535974][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.535974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.535974][ T10] [ 1987.537668][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1987.537668][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.537668][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.537668][ T10] ipv6_find_idev+0x102/0x170 [ 1987.537668][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.537668][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.537668][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.537668][ T10] netlink_unicast+0x449/0x710 [ 1987.537668][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.537668][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.537668][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.537668][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.537668][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.537668][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.537668][ T10] [ 1987.539535][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1987.539851][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1987.539851][ T10] netdev_get_by_index+0x5e/0x80 [ 1987.539851][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1987.539851][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1987.539851][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1987.539851][ T10] ipv6_add_addr+0x411/0x2000 [ 1987.539851][ T10] inet6_addr_add+0x30e/0xa40 [ 1987.539851][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.539851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.539851][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.539851][ T10] netlink_unicast+0x449/0x710 [ 1987.539851][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.539851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.539851][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.539851][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.539851][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.539851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.539851][ T10] [ 1987.542056][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1987.542056][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1987.542056][ T10] ipv6_find_idev+0x102/0x170 [ 1987.542056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.542056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.542056][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.542056][ T10] netlink_unicast+0x449/0x710 [ 1987.542056][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.542056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.542056][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.542056][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.542056][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.542056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.542056][ T10] [ 1987.543748][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1987.543748][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1987.543748][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1987.543748][ T10] ipv6_find_idev+0x102/0x170 [ 1987.543748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.543748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.543748][ T10] netlink_rcv_skb+0x130/0x360 [ 1987.543748][ T10] netlink_unicast+0x449/0x710 [ 1987.543748][ T10] netlink_sendmsg+0x723/0xbe0 [ 1987.543748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1987.543748][ T10] ___sys_sendmsg+0xee/0x170 [ 1987.543748][ T10] __sys_sendmsg+0xcd/0x170 [ 1987.543748][ T10] do_syscall_64+0xc6/0x1e0 [ 1987.543748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.543748][ T10] [ 1997.685783][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 1997.686179][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1997.686179][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.686179][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.686179][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.686179][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.686179][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.686179][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.686179][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.686179][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.686179][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.686179][ T10] netlink_unicast+0x449/0x710 [ 1997.686179][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.686179][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.686179][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.686179][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.686179][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.686179][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.686179][ T10] [ 1997.688196][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1997.688196][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.688196][ T10] ipv6_find_idev+0x102/0x170 [ 1997.688196][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.688196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.688196][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.688196][ T10] netlink_unicast+0x449/0x710 [ 1997.688196][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.688196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.688196][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.688196][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.688196][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.688196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.688196][ T10] [ 1997.689740][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 1997.689740][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.689740][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.689740][ T10] ipv6_find_idev+0x102/0x170 [ 1997.689740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.689740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.689740][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.689740][ T10] netlink_unicast+0x449/0x710 [ 1997.689740][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.689740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.689740][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.689740][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.689740][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.689740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.689740][ T10] [ 1997.691452][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 1997.691730][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1997.691730][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.691730][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.691730][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.691730][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.691730][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.691730][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.691730][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.691730][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.691730][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.691730][ T10] netlink_unicast+0x449/0x710 [ 1997.691730][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.691730][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.691730][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.691730][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.691730][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.691730][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.691730][ T10] [ 1997.693734][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1997.693734][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.693734][ T10] ipv6_find_idev+0x102/0x170 [ 1997.693734][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.693734][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.693734][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.693734][ T10] netlink_unicast+0x449/0x710 [ 1997.693734][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.693734][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.693734][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.693734][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.693734][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.693734][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.693734][ T10] [ 1997.695277][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 1997.695277][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.695277][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.695277][ T10] ipv6_find_idev+0x102/0x170 [ 1997.695277][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.695277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.695277][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.695277][ T10] netlink_unicast+0x449/0x710 [ 1997.695277][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.695277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.695277][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.695277][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.695277][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.695277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.695277][ T10] [ 1997.696932][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 1997.697194][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1997.697194][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.697194][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.697194][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.697194][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.697194][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.697194][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.697194][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.697194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.697194][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.697194][ T10] netlink_unicast+0x449/0x710 [ 1997.697194][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.697194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.697194][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.697194][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.697194][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.697194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.697194][ T10] [ 1997.699182][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1997.699182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.699182][ T10] ipv6_find_idev+0x102/0x170 [ 1997.699182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.699182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.699182][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.699182][ T10] netlink_unicast+0x449/0x710 [ 1997.699182][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.699182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.699182][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.699182][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.699182][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.699182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.699182][ T10] [ 1997.700707][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 1997.700707][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.700707][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.700707][ T10] ipv6_find_idev+0x102/0x170 [ 1997.700707][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.700707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.700707][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.700707][ T10] netlink_unicast+0x449/0x710 [ 1997.700707][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.700707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.700707][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.700707][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.700707][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.700707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.700707][ T10] [ 1997.702362][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 1997.702625][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1997.702625][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.702625][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.702625][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.702625][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.702625][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.702625][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.702625][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.702625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.702625][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.702625][ T10] netlink_unicast+0x449/0x710 [ 1997.702625][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.702625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.702625][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.702625][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.702625][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.702625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.702625][ T10] [ 1997.704973][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1997.704973][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.704973][ T10] ipv6_find_idev+0x102/0x170 [ 1997.704973][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.704973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.704973][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.704973][ T10] netlink_unicast+0x449/0x710 [ 1997.704973][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.704973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.704973][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.704973][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.704973][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.704973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.704973][ T10] [ 1997.706587][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 1997.706587][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.706587][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.706587][ T10] ipv6_find_idev+0x102/0x170 [ 1997.706587][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.706587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.706587][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.706587][ T10] netlink_unicast+0x449/0x710 [ 1997.706587][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.706587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.706587][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.706587][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.706587][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.706587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.706587][ T10] [ 1997.708534][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 1997.709238][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1997.709238][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.709238][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.709238][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.709238][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.709238][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.709238][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.709238][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.709238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.709238][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.709238][ T10] netlink_unicast+0x449/0x710 [ 1997.709238][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.709238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.709238][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.709238][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.709238][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.709238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.709238][ T10] [ 1997.711251][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1997.711251][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.711251][ T10] ipv6_find_idev+0x102/0x170 [ 1997.711251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.711251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.711251][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.711251][ T10] netlink_unicast+0x449/0x710 [ 1997.711251][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.711251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.711251][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.711251][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.711251][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.711251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.711251][ T10] [ 1997.712889][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 1997.712889][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.712889][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.712889][ T10] ipv6_find_idev+0x102/0x170 [ 1997.712889][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.712889][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.712889][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.712889][ T10] netlink_unicast+0x449/0x710 [ 1997.712889][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.712889][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.712889][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.712889][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.712889][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.712889][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.712889][ T10] [ 1997.714741][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 1997.715087][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1997.715087][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.715087][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.715087][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.715087][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.715087][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.715087][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.715087][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.715087][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.715087][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.715087][ T10] netlink_unicast+0x449/0x710 [ 1997.715087][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.715087][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.715087][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.715087][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.715087][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.715087][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.715087][ T10] [ 1997.717220][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1997.717220][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.717220][ T10] ipv6_find_idev+0x102/0x170 [ 1997.717220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.717220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.717220][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.717220][ T10] netlink_unicast+0x449/0x710 [ 1997.717220][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.717220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.717220][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.717220][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.717220][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.717220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.717220][ T10] [ 1997.718832][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 1997.718832][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.718832][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.718832][ T10] ipv6_find_idev+0x102/0x170 [ 1997.718832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.718832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.718832][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.718832][ T10] netlink_unicast+0x449/0x710 [ 1997.718832][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.718832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.718832][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.718832][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.718832][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.718832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.718832][ T10] [ 1997.720537][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 1997.720852][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1997.720852][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.720852][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.720852][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.720852][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.720852][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.720852][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.720852][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.720852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.720852][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.720852][ T10] netlink_unicast+0x449/0x710 [ 1997.720852][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.720852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.720852][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.720852][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.720852][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.720852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.720852][ T10] [ 1997.723031][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1997.723031][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.723031][ T10] ipv6_find_idev+0x102/0x170 [ 1997.723031][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.723031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.723031][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.723031][ T10] netlink_unicast+0x449/0x710 [ 1997.723031][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.723031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.723031][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.723031][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.723031][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.723031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.723031][ T10] [ 1997.724558][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 1997.724558][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.724558][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.724558][ T10] ipv6_find_idev+0x102/0x170 [ 1997.724558][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.724558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.724558][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.724558][ T10] netlink_unicast+0x449/0x710 [ 1997.724558][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.724558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.724558][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.724558][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.724558][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.724558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.724558][ T10] [ 1997.726481][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 1997.726795][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1997.726795][ T10] netdev_get_by_index+0x5e/0x80 [ 1997.726795][ T10] fib6_nh_init+0x3d8/0x15b0 [ 1997.726795][ T10] ip6_route_info_create+0xf18/0x17d0 [ 1997.726795][ T10] addrconf_f6i_alloc+0x244/0x410 [ 1997.726795][ T10] ipv6_add_addr+0x411/0x2000 [ 1997.726795][ T10] inet6_addr_add+0x30e/0xa40 [ 1997.726795][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.726795][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.726795][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.726795][ T10] netlink_unicast+0x449/0x710 [ 1997.726795][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.726795][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.726795][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.726795][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.726795][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.726795][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.726795][ T10] [ 1997.729073][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1997.729073][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 1997.729073][ T10] ipv6_find_idev+0x102/0x170 [ 1997.729073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.729073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.729073][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.729073][ T10] netlink_unicast+0x449/0x710 [ 1997.729073][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.729073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.729073][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.729073][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.729073][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.729073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.729073][ T10] [ 1997.730919][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 1997.730919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 1997.730919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 1997.730919][ T10] ipv6_find_idev+0x102/0x170 [ 1997.730919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.730919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.730919][ T10] netlink_rcv_skb+0x130/0x360 [ 1997.730919][ T10] netlink_unicast+0x449/0x710 [ 1997.730919][ T10] netlink_sendmsg+0x723/0xbe0 [ 1997.730919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 1997.730919][ T10] ___sys_sendmsg+0xee/0x170 [ 1997.730919][ T10] __sys_sendmsg+0xcd/0x170 [ 1997.730919][ T10] do_syscall_64+0xc6/0x1e0 [ 1997.730919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.730919][ T10] [ 2007.844050][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2007.844370][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2007.844370][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.844370][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.844370][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.844370][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.844370][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.844370][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.844370][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.844370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.844370][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.844370][ T10] netlink_unicast+0x449/0x710 [ 2007.844370][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.844370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.844370][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.844370][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.844370][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.844370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.844370][ T10] [ 2007.846365][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2007.846365][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.846365][ T10] ipv6_find_idev+0x102/0x170 [ 2007.846365][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.846365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.846365][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.846365][ T10] netlink_unicast+0x449/0x710 [ 2007.846365][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.846365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.846365][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.846365][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.846365][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.846365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.846365][ T10] [ 2007.847900][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2007.847900][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.847900][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.847900][ T10] ipv6_find_idev+0x102/0x170 [ 2007.847900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.847900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.847900][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.847900][ T10] netlink_unicast+0x449/0x710 [ 2007.847900][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.847900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.847900][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.847900][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.847900][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.847900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.847900][ T10] [ 2007.849572][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2007.850382][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2007.850382][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.850382][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.850382][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.850382][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.850382][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.850382][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.850382][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.850382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.850382][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.850382][ T10] netlink_unicast+0x449/0x710 [ 2007.850382][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.850382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.850382][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.850382][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.850382][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.850382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.850382][ T10] [ 2007.852378][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2007.852378][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.852378][ T10] ipv6_find_idev+0x102/0x170 [ 2007.852378][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.852378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.852378][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.852378][ T10] netlink_unicast+0x449/0x710 [ 2007.852378][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.852378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.852378][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.852378][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.852378][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.852378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.852378][ T10] [ 2007.853916][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2007.853916][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.853916][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.853916][ T10] ipv6_find_idev+0x102/0x170 [ 2007.853916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.853916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.853916][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.853916][ T10] netlink_unicast+0x449/0x710 [ 2007.853916][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.853916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.853916][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.853916][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.853916][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.853916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.853916][ T10] [ 2007.855676][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2007.855948][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2007.855948][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.855948][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.855948][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.855948][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.855948][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.855948][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.855948][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.855948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.855948][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.855948][ T10] netlink_unicast+0x449/0x710 [ 2007.855948][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.855948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.855948][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.855948][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.855948][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.855948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.855948][ T10] [ 2007.858013][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2007.858013][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.858013][ T10] ipv6_find_idev+0x102/0x170 [ 2007.858013][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.858013][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.858013][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.858013][ T10] netlink_unicast+0x449/0x710 [ 2007.858013][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.858013][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.858013][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.858013][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.858013][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.858013][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.858013][ T10] [ 2007.859747][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2007.859747][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.859747][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.859747][ T10] ipv6_find_idev+0x102/0x170 [ 2007.859747][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.859747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.859747][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.859747][ T10] netlink_unicast+0x449/0x710 [ 2007.859747][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.859747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.859747][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.859747][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.859747][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.859747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.859747][ T10] [ 2007.861750][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2007.862015][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2007.862015][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.862015][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.862015][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.862015][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.862015][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.862015][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.862015][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.862015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.862015][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.862015][ T10] netlink_unicast+0x449/0x710 [ 2007.862015][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.862015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.862015][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.862015][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.862015][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.862015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.862015][ T10] [ 2007.864274][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2007.864274][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.864274][ T10] ipv6_find_idev+0x102/0x170 [ 2007.864274][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.864274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.864274][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.864274][ T10] netlink_unicast+0x449/0x710 [ 2007.864274][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.864274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.864274][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.864274][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.864274][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.864274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.864274][ T10] [ 2007.865994][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2007.865994][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.865994][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.865994][ T10] ipv6_find_idev+0x102/0x170 [ 2007.865994][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.865994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.865994][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.865994][ T10] netlink_unicast+0x449/0x710 [ 2007.865994][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.865994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.865994][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.865994][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.865994][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.865994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.865994][ T10] [ 2007.867996][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2007.868262][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2007.868262][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.868262][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.868262][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.868262][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.868262][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.868262][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.868262][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.868262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.868262][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.868262][ T10] netlink_unicast+0x449/0x710 [ 2007.868262][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.868262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.868262][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.868262][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.868262][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.868262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.868262][ T10] [ 2007.870441][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2007.870441][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.870441][ T10] ipv6_find_idev+0x102/0x170 [ 2007.870441][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.870441][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.870441][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.870441][ T10] netlink_unicast+0x449/0x710 [ 2007.870441][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.870441][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.870441][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.870441][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.870441][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.870441][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.870441][ T10] [ 2007.872085][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2007.872085][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.872085][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.872085][ T10] ipv6_find_idev+0x102/0x170 [ 2007.872085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.872085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.872085][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.872085][ T10] netlink_unicast+0x449/0x710 [ 2007.872085][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.872085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.872085][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.872085][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.872085][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.872085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.872085][ T10] [ 2007.874045][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2007.874310][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2007.874310][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.874310][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.874310][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.874310][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.874310][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.874310][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.874310][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.874310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.874310][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.874310][ T10] netlink_unicast+0x449/0x710 [ 2007.874310][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.874310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.874310][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.874310][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.874310][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.874310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.874310][ T10] [ 2007.876480][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2007.876480][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.876480][ T10] ipv6_find_idev+0x102/0x170 [ 2007.876480][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.876480][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.876480][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.876480][ T10] netlink_unicast+0x449/0x710 [ 2007.876480][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.876480][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.876480][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.876480][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.876480][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.876480][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.876480][ T10] [ 2007.878131][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2007.878131][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.878131][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.878131][ T10] ipv6_find_idev+0x102/0x170 [ 2007.878131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.878131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.878131][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.878131][ T10] netlink_unicast+0x449/0x710 [ 2007.878131][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.878131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.878131][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.878131][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.878131][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.878131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.878131][ T10] [ 2007.880058][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2007.880320][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2007.880320][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.880320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.880320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.880320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.880320][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.880320][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.880320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.880320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.880320][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.880320][ T10] netlink_unicast+0x449/0x710 [ 2007.880320][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.880320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.880320][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.880320][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.880320][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.880320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.880320][ T10] [ 2007.882694][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2007.882694][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.882694][ T10] ipv6_find_idev+0x102/0x170 [ 2007.882694][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.882694][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.882694][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.882694][ T10] netlink_unicast+0x449/0x710 [ 2007.882694][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.882694][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.882694][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.882694][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.882694][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.882694][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.882694][ T10] [ 2007.884413][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2007.884413][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.884413][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.884413][ T10] ipv6_find_idev+0x102/0x170 [ 2007.884413][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.884413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.884413][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.884413][ T10] netlink_unicast+0x449/0x710 [ 2007.884413][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.884413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.884413][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.884413][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.884413][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.884413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.884413][ T10] [ 2007.886261][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2007.886522][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2007.886522][ T10] netdev_get_by_index+0x5e/0x80 [ 2007.886522][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2007.886522][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2007.886522][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2007.886522][ T10] ipv6_add_addr+0x411/0x2000 [ 2007.886522][ T10] inet6_addr_add+0x30e/0xa40 [ 2007.886522][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.886522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.886522][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.886522][ T10] netlink_unicast+0x449/0x710 [ 2007.886522][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.886522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.886522][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.886522][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.886522][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.886522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.886522][ T10] [ 2007.888619][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2007.888619][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2007.888619][ T10] ipv6_find_idev+0x102/0x170 [ 2007.888619][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.888619][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.888619][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.888619][ T10] netlink_unicast+0x449/0x710 [ 2007.888619][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.888619][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.888619][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.888619][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.888619][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.888619][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.888619][ T10] [ 2007.890142][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2007.890142][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2007.890142][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2007.890142][ T10] ipv6_find_idev+0x102/0x170 [ 2007.890142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.890142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.890142][ T10] netlink_rcv_skb+0x130/0x360 [ 2007.890142][ T10] netlink_unicast+0x449/0x710 [ 2007.890142][ T10] netlink_sendmsg+0x723/0xbe0 [ 2007.890142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2007.890142][ T10] ___sys_sendmsg+0xee/0x170 [ 2007.890142][ T10] __sys_sendmsg+0xcd/0x170 [ 2007.890142][ T10] do_syscall_64+0xc6/0x1e0 [ 2007.890142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.890142][ T10] [ 2018.003761][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2018.004176][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2018.004176][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.004176][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.004176][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.004176][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.004176][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.004176][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.004176][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.004176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.004176][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.004176][ T10] netlink_unicast+0x449/0x710 [ 2018.004176][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.004176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.004176][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.004176][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.004176][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.004176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.004176][ T10] [ 2018.006216][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2018.006216][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.006216][ T10] ipv6_find_idev+0x102/0x170 [ 2018.006216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.006216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.006216][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.006216][ T10] netlink_unicast+0x449/0x710 [ 2018.006216][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.006216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.006216][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.006216][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.006216][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.006216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.006216][ T10] [ 2018.007753][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2018.007753][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.007753][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.007753][ T10] ipv6_find_idev+0x102/0x170 [ 2018.007753][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.007753][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.007753][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.007753][ T10] netlink_unicast+0x449/0x710 [ 2018.007753][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.007753][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.007753][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.007753][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.007753][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.007753][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.007753][ T10] [ 2018.009445][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2018.009733][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2018.009733][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.009733][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.009733][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.009733][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.009733][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.009733][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.009733][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.009733][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.009733][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.009733][ T10] netlink_unicast+0x449/0x710 [ 2018.009733][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.009733][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.009733][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.009733][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.009733][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.009733][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.009733][ T10] [ 2018.011734][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2018.011734][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.011734][ T10] ipv6_find_idev+0x102/0x170 [ 2018.011734][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.011734][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.011734][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.011734][ T10] netlink_unicast+0x449/0x710 [ 2018.011734][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.011734][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.011734][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.011734][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.011734][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.011734][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.011734][ T10] [ 2018.013272][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2018.013272][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.013272][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.013272][ T10] ipv6_find_idev+0x102/0x170 [ 2018.013272][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.013272][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.013272][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.013272][ T10] netlink_unicast+0x449/0x710 [ 2018.013272][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.013272][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.013272][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.013272][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.013272][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.013272][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.013272][ T10] [ 2018.014983][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2018.015263][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2018.015263][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.015263][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.015263][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.015263][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.015263][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.015263][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.015263][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.015263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.015263][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.015263][ T10] netlink_unicast+0x449/0x710 [ 2018.015263][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.015263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.015263][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.015263][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.015263][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.015263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.015263][ T10] [ 2018.017246][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2018.017246][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.017246][ T10] ipv6_find_idev+0x102/0x170 [ 2018.017246][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.017246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.017246][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.017246][ T10] netlink_unicast+0x449/0x710 [ 2018.017246][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.017246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.017246][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.017246][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.017246][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.017246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.017246][ T10] [ 2018.018782][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2018.018782][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.018782][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.018782][ T10] ipv6_find_idev+0x102/0x170 [ 2018.018782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.018782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.018782][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.018782][ T10] netlink_unicast+0x449/0x710 [ 2018.018782][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.018782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.018782][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.018782][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.018782][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.018782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.018782][ T10] [ 2018.020477][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2018.021188][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2018.021188][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.021188][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.021188][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.021188][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.021188][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.021188][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.021188][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.021188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.021188][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.021188][ T10] netlink_unicast+0x449/0x710 [ 2018.021188][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.021188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.021188][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.021188][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.021188][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.021188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.021188][ T10] [ 2018.023165][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2018.023165][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.023165][ T10] ipv6_find_idev+0x102/0x170 [ 2018.023165][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.023165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.023165][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.023165][ T10] netlink_unicast+0x449/0x710 [ 2018.023165][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.023165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.023165][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.023165][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.023165][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.023165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.023165][ T10] [ 2018.024705][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2018.024705][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.024705][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.024705][ T10] ipv6_find_idev+0x102/0x170 [ 2018.024705][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.024705][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.024705][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.024705][ T10] netlink_unicast+0x449/0x710 [ 2018.024705][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.024705][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.024705][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.024705][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.024705][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.024705][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.024705][ T10] [ 2018.026424][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2018.026747][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2018.026747][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.026747][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.026747][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.026747][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.026747][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.026747][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.026747][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.026747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.026747][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.026747][ T10] netlink_unicast+0x449/0x710 [ 2018.026747][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.026747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.026747][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.026747][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.026747][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.026747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.026747][ T10] [ 2018.028734][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2018.028734][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.028734][ T10] ipv6_find_idev+0x102/0x170 [ 2018.028734][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.028734][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.028734][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.028734][ T10] netlink_unicast+0x449/0x710 [ 2018.028734][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.028734][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.028734][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.028734][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.028734][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.028734][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.028734][ T10] [ 2018.030270][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2018.030270][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.030270][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.030270][ T10] ipv6_find_idev+0x102/0x170 [ 2018.030270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.030270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.030270][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.030270][ T10] netlink_unicast+0x449/0x710 [ 2018.030270][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.030270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.030270][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.030270][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.030270][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.030270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.030270][ T10] [ 2018.032005][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2018.032334][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2018.032334][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.032334][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.032334][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.032334][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.032334][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.032334][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.032334][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.032334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.032334][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.032334][ T10] netlink_unicast+0x449/0x710 [ 2018.032334][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.032334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.032334][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.032334][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.032334][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.032334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.032334][ T10] [ 2018.034330][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2018.034330][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.034330][ T10] ipv6_find_idev+0x102/0x170 [ 2018.034330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.034330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.034330][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.034330][ T10] netlink_unicast+0x449/0x710 [ 2018.034330][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.034330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.034330][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.034330][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.034330][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.034330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.034330][ T10] [ 2018.036063][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2018.036063][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.036063][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.036063][ T10] ipv6_find_idev+0x102/0x170 [ 2018.036063][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.036063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.036063][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.036063][ T10] netlink_unicast+0x449/0x710 [ 2018.036063][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.036063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.036063][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.036063][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.036063][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.036063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.036063][ T10] [ 2018.037971][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2018.038288][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2018.038288][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.038288][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.038288][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.038288][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.038288][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.038288][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.038288][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.038288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.038288][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.038288][ T10] netlink_unicast+0x449/0x710 [ 2018.038288][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.038288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.038288][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.038288][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.038288][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.038288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.038288][ T10] [ 2018.040470][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2018.040470][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.040470][ T10] ipv6_find_idev+0x102/0x170 [ 2018.040470][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.040470][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.040470][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.040470][ T10] netlink_unicast+0x449/0x710 [ 2018.040470][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.040470][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.040470][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.040470][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.040470][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.040470][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.040470][ T10] [ 2018.042258][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2018.042258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.042258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.042258][ T10] ipv6_find_idev+0x102/0x170 [ 2018.042258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.042258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.042258][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.042258][ T10] netlink_unicast+0x449/0x710 [ 2018.042258][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.042258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.042258][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.042258][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.042258][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.042258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.042258][ T10] [ 2018.044230][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2018.044545][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2018.044545][ T10] netdev_get_by_index+0x5e/0x80 [ 2018.044545][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2018.044545][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2018.044545][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2018.044545][ T10] ipv6_add_addr+0x411/0x2000 [ 2018.044545][ T10] inet6_addr_add+0x30e/0xa40 [ 2018.044545][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2018.044545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.044545][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.044545][ T10] netlink_unicast+0x449/0x710 [ 2018.044545][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.044545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.044545][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.044545][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.044545][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.044545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.044545][ T10] [ 2018.046725][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2018.046725][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2018.046725][ T10] ipv6_find_idev+0x102/0x170 [ 2018.046725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.046725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.046725][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.046725][ T10] netlink_unicast+0x449/0x710 [ 2018.046725][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.046725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.046725][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.046725][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.046725][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.046725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.046725][ T10] [ 2018.048465][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2018.048465][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2018.048465][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2018.048465][ T10] ipv6_find_idev+0x102/0x170 [ 2018.048465][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2018.048465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2018.048465][ T10] netlink_rcv_skb+0x130/0x360 [ 2018.048465][ T10] netlink_unicast+0x449/0x710 [ 2018.048465][ T10] netlink_sendmsg+0x723/0xbe0 [ 2018.048465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2018.048465][ T10] ___sys_sendmsg+0xee/0x170 [ 2018.048465][ T10] __sys_sendmsg+0xcd/0x170 [ 2018.048465][ T10] do_syscall_64+0xc6/0x1e0 [ 2018.048465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2018.048465][ T10] [ 2028.051749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2028.052189][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2028.052189][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.052189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.052189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.052189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.052189][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.052189][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.052189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.052189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.052189][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.052189][ T10] netlink_unicast+0x449/0x710 [ 2028.052189][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.052189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.052189][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.052189][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.052189][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.052189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.052189][ T10] [ 2028.054235][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2028.054235][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.054235][ T10] ipv6_find_idev+0x102/0x170 [ 2028.054235][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.054235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.054235][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.054235][ T10] netlink_unicast+0x449/0x710 [ 2028.054235][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.054235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.054235][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.054235][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.054235][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.054235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.054235][ T10] [ 2028.055800][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2028.055800][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.055800][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.055800][ T10] ipv6_find_idev+0x102/0x170 [ 2028.055800][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.055800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.055800][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.055800][ T10] netlink_unicast+0x449/0x710 [ 2028.055800][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.055800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.055800][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.055800][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.055800][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.055800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.055800][ T10] [ 2028.057510][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2028.057795][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2028.057795][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.057795][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.057795][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.057795][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.057795][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.057795][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.057795][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.057795][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.057795][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.057795][ T10] netlink_unicast+0x449/0x710 [ 2028.057795][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.057795][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.057795][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.057795][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.057795][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.057795][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.057795][ T10] [ 2028.059787][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2028.059787][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.059787][ T10] ipv6_find_idev+0x102/0x170 [ 2028.059787][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.059787][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.059787][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.059787][ T10] netlink_unicast+0x449/0x710 [ 2028.059787][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.059787][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.059787][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.059787][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.059787][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.059787][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.059787][ T10] [ 2028.061337][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2028.061337][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.061337][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.061337][ T10] ipv6_find_idev+0x102/0x170 [ 2028.061337][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.061337][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.061337][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.061337][ T10] netlink_unicast+0x449/0x710 [ 2028.061337][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.061337][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.061337][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.061337][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.061337][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.061337][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.061337][ T10] [ 2028.063014][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2028.063280][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2028.063280][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.063280][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.063280][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.063280][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.063280][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.063280][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.063280][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.063280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.063280][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.063280][ T10] netlink_unicast+0x449/0x710 [ 2028.063280][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.063280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.063280][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.063280][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.063280][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.063280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.063280][ T10] [ 2028.065264][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2028.065264][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.065264][ T10] ipv6_find_idev+0x102/0x170 [ 2028.065264][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.065264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.065264][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.065264][ T10] netlink_unicast+0x449/0x710 [ 2028.065264][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.065264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.065264][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.065264][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.065264][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.065264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.065264][ T10] [ 2028.066788][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2028.066788][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.066788][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.066788][ T10] ipv6_find_idev+0x102/0x170 [ 2028.066788][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.066788][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.066788][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.066788][ T10] netlink_unicast+0x449/0x710 [ 2028.066788][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.066788][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.066788][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.066788][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.066788][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.066788][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.066788][ T10] [ 2028.068451][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2028.069162][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2028.069162][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.069162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.069162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.069162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.069162][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.069162][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.069162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.069162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.069162][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.069162][ T10] netlink_unicast+0x449/0x710 [ 2028.069162][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.069162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.069162][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.069162][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.069162][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.069162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.069162][ T10] [ 2028.071155][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2028.071155][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.071155][ T10] ipv6_find_idev+0x102/0x170 [ 2028.071155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.071155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.071155][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.071155][ T10] netlink_unicast+0x449/0x710 [ 2028.071155][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.071155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.071155][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.071155][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.071155][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.071155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.071155][ T10] [ 2028.072683][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2028.072683][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.072683][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.072683][ T10] ipv6_find_idev+0x102/0x170 [ 2028.072683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.072683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.072683][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.072683][ T10] netlink_unicast+0x449/0x710 [ 2028.072683][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.072683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.072683][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.072683][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.072683][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.072683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.072683][ T10] [ 2028.074404][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2028.074736][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2028.074736][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.074736][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.074736][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.074736][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.074736][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.074736][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.074736][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.074736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.074736][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.074736][ T10] netlink_unicast+0x449/0x710 [ 2028.074736][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.074736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.074736][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.074736][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.074736][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.074736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.074736][ T10] [ 2028.076718][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2028.076718][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.076718][ T10] ipv6_find_idev+0x102/0x170 [ 2028.076718][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.076718][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.076718][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.076718][ T10] netlink_unicast+0x449/0x710 [ 2028.076718][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.076718][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.076718][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.076718][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.076718][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.076718][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.076718][ T10] [ 2028.078249][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2028.078249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.078249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.078249][ T10] ipv6_find_idev+0x102/0x170 [ 2028.078249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.078249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.078249][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.078249][ T10] netlink_unicast+0x449/0x710 [ 2028.078249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.078249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.078249][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.078249][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.078249][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.078249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.078249][ T10] [ 2028.079963][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2028.080275][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2028.080275][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.080275][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.080275][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.080275][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.080275][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.080275][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.080275][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.080275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.080275][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.080275][ T10] netlink_unicast+0x449/0x710 [ 2028.080275][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.080275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.080275][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.080275][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.080275][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.080275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.080275][ T10] [ 2028.082335][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2028.082335][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.082335][ T10] ipv6_find_idev+0x102/0x170 [ 2028.082335][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.082335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.082335][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.082335][ T10] netlink_unicast+0x449/0x710 [ 2028.082335][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.082335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.082335][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.082335][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.082335][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.082335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.082335][ T10] [ 2028.083989][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2028.083989][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.083989][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.083989][ T10] ipv6_find_idev+0x102/0x170 [ 2028.083989][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.083989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.083989][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.083989][ T10] netlink_unicast+0x449/0x710 [ 2028.083989][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.083989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.083989][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.083989][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.083989][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.083989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.083989][ T10] [ 2028.085762][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2028.086072][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2028.086072][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.086072][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.086072][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.086072][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.086072][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.086072][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.086072][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.086072][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.086072][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.086072][ T10] netlink_unicast+0x449/0x710 [ 2028.086072][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.086072][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.086072][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.086072][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.086072][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.086072][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.086072][ T10] [ 2028.088186][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2028.088186][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.088186][ T10] ipv6_find_idev+0x102/0x170 [ 2028.088186][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.088186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.088186][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.088186][ T10] netlink_unicast+0x449/0x710 [ 2028.088186][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.088186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.088186][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.088186][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.088186][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.088186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.088186][ T10] [ 2028.089779][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2028.089779][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.089779][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.089779][ T10] ipv6_find_idev+0x102/0x170 [ 2028.089779][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.089779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.089779][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.089779][ T10] netlink_unicast+0x449/0x710 [ 2028.089779][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.089779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.089779][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.089779][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.089779][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.089779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.089779][ T10] [ 2028.091616][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2028.091942][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2028.091942][ T10] netdev_get_by_index+0x5e/0x80 [ 2028.091942][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2028.091942][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2028.091942][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2028.091942][ T10] ipv6_add_addr+0x411/0x2000 [ 2028.091942][ T10] inet6_addr_add+0x30e/0xa40 [ 2028.091942][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.091942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.091942][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.091942][ T10] netlink_unicast+0x449/0x710 [ 2028.091942][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.091942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.091942][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.091942][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.091942][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.091942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.091942][ T10] [ 2028.093987][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2028.093987][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2028.093987][ T10] ipv6_find_idev+0x102/0x170 [ 2028.093987][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.093987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.093987][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.093987][ T10] netlink_unicast+0x449/0x710 [ 2028.093987][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.093987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.093987][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.093987][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.093987][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.093987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.093987][ T10] [ 2028.095641][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2028.095641][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2028.095641][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2028.095641][ T10] ipv6_find_idev+0x102/0x170 [ 2028.095641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.095641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.095641][ T10] netlink_rcv_skb+0x130/0x360 [ 2028.095641][ T10] netlink_unicast+0x449/0x710 [ 2028.095641][ T10] netlink_sendmsg+0x723/0xbe0 [ 2028.095641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2028.095641][ T10] ___sys_sendmsg+0xee/0x170 [ 2028.095641][ T10] __sys_sendmsg+0xcd/0x170 [ 2028.095641][ T10] do_syscall_64+0xc6/0x1e0 [ 2028.095641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.095641][ T10] [ 2038.171751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2038.172086][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2038.172086][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.172086][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.172086][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.172086][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.172086][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.172086][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.172086][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.172086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.172086][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.172086][ T10] netlink_unicast+0x449/0x710 [ 2038.172086][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.172086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.172086][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.172086][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.172086][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.172086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.172086][ T10] [ 2038.174128][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2038.174128][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.174128][ T10] ipv6_find_idev+0x102/0x170 [ 2038.174128][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.174128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.174128][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.174128][ T10] netlink_unicast+0x449/0x710 [ 2038.174128][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.174128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.174128][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.174128][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.174128][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.174128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.174128][ T10] [ 2038.175667][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2038.175667][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.175667][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.175667][ T10] ipv6_find_idev+0x102/0x170 [ 2038.175667][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.175667][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.175667][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.175667][ T10] netlink_unicast+0x449/0x710 [ 2038.175667][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.175667][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.175667][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.175667][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.175667][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.175667][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.175667][ T10] [ 2038.177375][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2038.177656][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2038.177656][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.177656][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.177656][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.177656][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.177656][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.177656][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.177656][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.177656][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.177656][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.177656][ T10] netlink_unicast+0x449/0x710 [ 2038.177656][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.177656][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.177656][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.177656][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.177656][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.177656][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.177656][ T10] [ 2038.179691][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2038.179691][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.179691][ T10] ipv6_find_idev+0x102/0x170 [ 2038.179691][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.179691][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.179691][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.179691][ T10] netlink_unicast+0x449/0x710 [ 2038.179691][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.179691][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.179691][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.179691][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.179691][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.179691][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.179691][ T10] [ 2038.181258][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2038.181258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.181258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.181258][ T10] ipv6_find_idev+0x102/0x170 [ 2038.181258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.181258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.181258][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.181258][ T10] netlink_unicast+0x449/0x710 [ 2038.181258][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.181258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.181258][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.181258][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.181258][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.181258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.181258][ T10] [ 2038.182958][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2038.183226][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2038.183226][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.183226][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.183226][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.183226][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.183226][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.183226][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.183226][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.183226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.183226][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.183226][ T10] netlink_unicast+0x449/0x710 [ 2038.183226][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.183226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.183226][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.183226][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.183226][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.183226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.183226][ T10] [ 2038.185243][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2038.185243][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.185243][ T10] ipv6_find_idev+0x102/0x170 [ 2038.185243][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.185243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.185243][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.185243][ T10] netlink_unicast+0x449/0x710 [ 2038.185243][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.185243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.185243][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.185243][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.185243][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.185243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.185243][ T10] [ 2038.186812][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2038.186812][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.186812][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.186812][ T10] ipv6_find_idev+0x102/0x170 [ 2038.186812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.186812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.186812][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.186812][ T10] netlink_unicast+0x449/0x710 [ 2038.186812][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.186812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.186812][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.186812][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.186812][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.186812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.186812][ T10] [ 2038.188520][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2038.188798][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2038.188798][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.188798][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.188798][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.188798][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.188798][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.188798][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.188798][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.188798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.188798][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.188798][ T10] netlink_unicast+0x449/0x710 [ 2038.188798][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.188798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.188798][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.188798][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.188798][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.188798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.188798][ T10] [ 2038.191031][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2038.191031][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.191031][ T10] ipv6_find_idev+0x102/0x170 [ 2038.191031][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.191031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.191031][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.191031][ T10] netlink_unicast+0x449/0x710 [ 2038.191031][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.191031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.191031][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.191031][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.191031][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.191031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.191031][ T10] [ 2038.192696][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2038.192696][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.192696][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.192696][ T10] ipv6_find_idev+0x102/0x170 [ 2038.192696][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.192696][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.192696][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.192696][ T10] netlink_unicast+0x449/0x710 [ 2038.192696][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.192696][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.192696][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.192696][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.192696][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.192696][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.192696][ T10] [ 2038.194511][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2038.195217][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2038.195217][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.195217][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.195217][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.195217][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.195217][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.195217][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.195217][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.195217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.195217][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.195217][ T10] netlink_unicast+0x449/0x710 [ 2038.195217][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.195217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.195217][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.195217][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.195217][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.195217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.195217][ T10] [ 2038.197229][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2038.197229][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.197229][ T10] ipv6_find_idev+0x102/0x170 [ 2038.197229][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.197229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.197229][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.197229][ T10] netlink_unicast+0x449/0x710 [ 2038.197229][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.197229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.197229][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.197229][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.197229][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.197229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.197229][ T10] [ 2038.198773][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2038.198773][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.198773][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.198773][ T10] ipv6_find_idev+0x102/0x170 [ 2038.198773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.198773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.198773][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.198773][ T10] netlink_unicast+0x449/0x710 [ 2038.198773][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.198773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.198773][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.198773][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.198773][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.198773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.198773][ T10] [ 2038.200828][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2038.201148][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2038.201148][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.201148][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.201148][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.201148][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.201148][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.201148][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.201148][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.201148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.201148][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.201148][ T10] netlink_unicast+0x449/0x710 [ 2038.201148][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.201148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.201148][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.201148][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.201148][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.201148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.201148][ T10] [ 2038.203210][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2038.203210][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.203210][ T10] ipv6_find_idev+0x102/0x170 [ 2038.203210][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.203210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.203210][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.203210][ T10] netlink_unicast+0x449/0x710 [ 2038.203210][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.203210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.203210][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.203210][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.203210][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.203210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.203210][ T10] [ 2038.204772][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2038.204772][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.204772][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.204772][ T10] ipv6_find_idev+0x102/0x170 [ 2038.204772][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.204772][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.204772][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.204772][ T10] netlink_unicast+0x449/0x710 [ 2038.204772][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.204772][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.204772][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.204772][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.204772][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.204772][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.204772][ T10] [ 2038.206712][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2038.207029][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2038.207029][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.207029][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.207029][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.207029][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.207029][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.207029][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.207029][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.207029][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.207029][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.207029][ T10] netlink_unicast+0x449/0x710 [ 2038.207029][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.207029][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.207029][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.207029][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.207029][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.207029][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.207029][ T10] [ 2038.209031][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2038.209031][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.209031][ T10] ipv6_find_idev+0x102/0x170 [ 2038.209031][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.209031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.209031][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.209031][ T10] netlink_unicast+0x449/0x710 [ 2038.209031][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.209031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.209031][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.209031][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.209031][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.209031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.209031][ T10] [ 2038.210596][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2038.210596][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.210596][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.210596][ T10] ipv6_find_idev+0x102/0x170 [ 2038.210596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.210596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.210596][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.210596][ T10] netlink_unicast+0x449/0x710 [ 2038.210596][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.210596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.210596][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.210596][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.210596][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.210596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.210596][ T10] [ 2038.212493][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2038.212813][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2038.212813][ T10] netdev_get_by_index+0x5e/0x80 [ 2038.212813][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2038.212813][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2038.212813][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2038.212813][ T10] ipv6_add_addr+0x411/0x2000 [ 2038.212813][ T10] inet6_addr_add+0x30e/0xa40 [ 2038.212813][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.212813][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.212813][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.212813][ T10] netlink_unicast+0x449/0x710 [ 2038.212813][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.212813][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.212813][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.212813][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.212813][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.212813][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.212813][ T10] [ 2038.214800][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2038.214800][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2038.214800][ T10] ipv6_find_idev+0x102/0x170 [ 2038.214800][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.214800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.214800][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.214800][ T10] netlink_unicast+0x449/0x710 [ 2038.214800][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.214800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.214800][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.214800][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.214800][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.214800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.214800][ T10] [ 2038.216416][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2038.216416][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2038.216416][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2038.216416][ T10] ipv6_find_idev+0x102/0x170 [ 2038.216416][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.216416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.216416][ T10] netlink_rcv_skb+0x130/0x360 [ 2038.216416][ T10] netlink_unicast+0x449/0x710 [ 2038.216416][ T10] netlink_sendmsg+0x723/0xbe0 [ 2038.216416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2038.216416][ T10] ___sys_sendmsg+0xee/0x170 [ 2038.216416][ T10] __sys_sendmsg+0xcd/0x170 [ 2038.216416][ T10] do_syscall_64+0xc6/0x1e0 [ 2038.216416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.216416][ T10] [ 2048.339665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2048.339997][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2048.339997][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.339997][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.339997][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.339997][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.339997][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.339997][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.339997][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.339997][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.339997][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.339997][ T10] netlink_unicast+0x449/0x710 [ 2048.339997][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.339997][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.339997][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.339997][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.339997][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.339997][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.339997][ T10] [ 2048.342001][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2048.342001][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.342001][ T10] ipv6_find_idev+0x102/0x170 [ 2048.342001][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.342001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.342001][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.342001][ T10] netlink_unicast+0x449/0x710 [ 2048.342001][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.342001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.342001][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.342001][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.342001][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.342001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.342001][ T10] [ 2048.343536][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2048.343536][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.343536][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.343536][ T10] ipv6_find_idev+0x102/0x170 [ 2048.343536][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.343536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.343536][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.343536][ T10] netlink_unicast+0x449/0x710 [ 2048.343536][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.343536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.343536][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.343536][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.343536][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.343536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.343536][ T10] [ 2048.345203][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2048.345465][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2048.345465][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.345465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.345465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.345465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.345465][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.345465][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.345465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.345465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.345465][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.345465][ T10] netlink_unicast+0x449/0x710 [ 2048.345465][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.345465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.345465][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.345465][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.345465][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.345465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.345465][ T10] [ 2048.347444][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2048.347444][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.347444][ T10] ipv6_find_idev+0x102/0x170 [ 2048.347444][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.347444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.347444][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.347444][ T10] netlink_unicast+0x449/0x710 [ 2048.347444][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.347444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.347444][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.347444][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.347444][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.347444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.347444][ T10] [ 2048.348963][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2048.348963][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.348963][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.348963][ T10] ipv6_find_idev+0x102/0x170 [ 2048.348963][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.348963][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.348963][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.348963][ T10] netlink_unicast+0x449/0x710 [ 2048.348963][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.348963][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.348963][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.348963][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.348963][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.348963][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.348963][ T10] [ 2048.350693][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2048.350955][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2048.350955][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.350955][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.350955][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.350955][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.350955][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.350955][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.350955][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.350955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.350955][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.350955][ T10] netlink_unicast+0x449/0x710 [ 2048.350955][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.350955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.350955][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.350955][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.350955][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.350955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.350955][ T10] [ 2048.352926][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2048.352926][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.352926][ T10] ipv6_find_idev+0x102/0x170 [ 2048.352926][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.352926][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.352926][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.352926][ T10] netlink_unicast+0x449/0x710 [ 2048.352926][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.352926][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.352926][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.352926][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.352926][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.352926][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.352926][ T10] [ 2048.354438][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2048.354438][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.354438][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.354438][ T10] ipv6_find_idev+0x102/0x170 [ 2048.354438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.354438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.354438][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.354438][ T10] netlink_unicast+0x449/0x710 [ 2048.354438][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.354438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.354438][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.354438][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.354438][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.354438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.354438][ T10] [ 2048.356093][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2048.356355][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2048.356355][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.356355][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.356355][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.356355][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.356355][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.356355][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.356355][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.356355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.356355][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.356355][ T10] netlink_unicast+0x449/0x710 [ 2048.356355][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.356355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.356355][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.356355][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.356355][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.356355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.356355][ T10] [ 2048.358323][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2048.358323][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.358323][ T10] ipv6_find_idev+0x102/0x170 [ 2048.358323][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.358323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.358323][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.358323][ T10] netlink_unicast+0x449/0x710 [ 2048.358323][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.358323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.358323][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.358323][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.358323][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.358323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.358323][ T10] [ 2048.359841][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2048.359841][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.359841][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.359841][ T10] ipv6_find_idev+0x102/0x170 [ 2048.359841][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.359841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.359841][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.359841][ T10] netlink_unicast+0x449/0x710 [ 2048.359841][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.359841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.359841][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.359841][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.359841][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.359841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.359841][ T10] [ 2048.361512][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2048.361790][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2048.361790][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.361790][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.361790][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.361790][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.361790][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.361790][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.361790][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.361790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.361790][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.361790][ T10] netlink_unicast+0x449/0x710 [ 2048.361790][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.361790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.361790][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.361790][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.361790][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.361790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.361790][ T10] [ 2048.363822][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2048.363822][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.363822][ T10] ipv6_find_idev+0x102/0x170 [ 2048.363822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.363822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.363822][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.363822][ T10] netlink_unicast+0x449/0x710 [ 2048.363822][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.363822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.363822][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.363822][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.363822][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.363822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.363822][ T10] [ 2048.365536][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2048.365536][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.365536][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.365536][ T10] ipv6_find_idev+0x102/0x170 [ 2048.365536][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.365536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.365536][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.365536][ T10] netlink_unicast+0x449/0x710 [ 2048.365536][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.365536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.365536][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.365536][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.365536][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.365536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.365536][ T10] [ 2048.367374][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2048.367636][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2048.367636][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.367636][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.367636][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.367636][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.367636][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.367636][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.367636][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.367636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.367636][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.367636][ T10] netlink_unicast+0x449/0x710 [ 2048.367636][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.367636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.367636][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.367636][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.367636][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.367636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.367636][ T10] [ 2048.369786][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2048.369786][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.369786][ T10] ipv6_find_idev+0x102/0x170 [ 2048.369786][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.369786][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.369786][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.369786][ T10] netlink_unicast+0x449/0x710 [ 2048.369786][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.369786][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.369786][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.369786][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.369786][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.369786][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.369786][ T10] [ 2048.371482][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2048.371482][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.371482][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.371482][ T10] ipv6_find_idev+0x102/0x170 [ 2048.371482][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.371482][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.371482][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.371482][ T10] netlink_unicast+0x449/0x710 [ 2048.371482][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.371482][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.371482][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.371482][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.371482][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.371482][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.371482][ T10] [ 2048.373719][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2048.373981][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2048.373981][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.373981][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.373981][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.373981][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.373981][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.373981][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.373981][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.373981][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.373981][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.373981][ T10] netlink_unicast+0x449/0x710 [ 2048.373981][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.373981][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.373981][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.373981][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.373981][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.373981][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.373981][ T10] [ 2048.375935][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2048.375935][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.375935][ T10] ipv6_find_idev+0x102/0x170 [ 2048.375935][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.375935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.375935][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.375935][ T10] netlink_unicast+0x449/0x710 [ 2048.375935][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.375935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.375935][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.375935][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.375935][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.375935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.375935][ T10] [ 2048.377562][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2048.377562][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.377562][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.377562][ T10] ipv6_find_idev+0x102/0x170 [ 2048.377562][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.377562][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.377562][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.377562][ T10] netlink_unicast+0x449/0x710 [ 2048.377562][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.377562][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.377562][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.377562][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.377562][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.377562][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.377562][ T10] [ 2048.379438][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2048.379752][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2048.379752][ T10] netdev_get_by_index+0x5e/0x80 [ 2048.379752][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2048.379752][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2048.379752][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2048.379752][ T10] ipv6_add_addr+0x411/0x2000 [ 2048.379752][ T10] inet6_addr_add+0x30e/0xa40 [ 2048.379752][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.379752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.379752][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.379752][ T10] netlink_unicast+0x449/0x710 [ 2048.379752][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.379752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.379752][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.379752][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.379752][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.379752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.379752][ T10] [ 2048.381712][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2048.381712][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2048.381712][ T10] ipv6_find_idev+0x102/0x170 [ 2048.381712][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.381712][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.381712][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.381712][ T10] netlink_unicast+0x449/0x710 [ 2048.381712][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.381712][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.381712][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.381712][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.381712][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.381712][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.381712][ T10] [ 2048.383414][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2048.383414][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2048.383414][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2048.383414][ T10] ipv6_find_idev+0x102/0x170 [ 2048.383414][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.383414][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.383414][ T10] netlink_rcv_skb+0x130/0x360 [ 2048.383414][ T10] netlink_unicast+0x449/0x710 [ 2048.383414][ T10] netlink_sendmsg+0x723/0xbe0 [ 2048.383414][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2048.383414][ T10] ___sys_sendmsg+0xee/0x170 [ 2048.383414][ T10] __sys_sendmsg+0xcd/0x170 [ 2048.383414][ T10] do_syscall_64+0xc6/0x1e0 [ 2048.383414][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.383414][ T10] [ 2058.540658][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2058.540977][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2058.540977][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.540977][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.540977][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.540977][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.540977][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.540977][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.540977][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.540977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.540977][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.540977][ T10] netlink_unicast+0x449/0x710 [ 2058.540977][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.540977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.540977][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.540977][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.540977][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.540977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.540977][ T10] [ 2058.542967][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2058.542967][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.542967][ T10] ipv6_find_idev+0x102/0x170 [ 2058.542967][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.542967][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.542967][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.542967][ T10] netlink_unicast+0x449/0x710 [ 2058.542967][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.542967][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.542967][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.542967][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.542967][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.542967][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.542967][ T10] [ 2058.544517][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2058.544517][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.544517][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.544517][ T10] ipv6_find_idev+0x102/0x170 [ 2058.544517][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.544517][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.544517][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.544517][ T10] netlink_unicast+0x449/0x710 [ 2058.544517][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.544517][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.544517][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.544517][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.544517][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.544517][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.544517][ T10] [ 2058.546197][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2058.546465][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2058.546465][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.546465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.546465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.546465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.546465][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.546465][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.546465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.546465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.546465][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.546465][ T10] netlink_unicast+0x449/0x710 [ 2058.546465][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.546465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.546465][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.546465][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.546465][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.546465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.546465][ T10] [ 2058.548444][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2058.548444][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.548444][ T10] ipv6_find_idev+0x102/0x170 [ 2058.548444][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.548444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.548444][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.548444][ T10] netlink_unicast+0x449/0x710 [ 2058.548444][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.548444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.548444][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.548444][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.548444][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.548444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.548444][ T10] [ 2058.549963][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2058.549963][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.549963][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.549963][ T10] ipv6_find_idev+0x102/0x170 [ 2058.549963][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.549963][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.549963][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.549963][ T10] netlink_unicast+0x449/0x710 [ 2058.549963][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.549963][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.549963][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.549963][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.549963][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.549963][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.549963][ T10] [ 2058.551693][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2058.551963][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2058.551963][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.551963][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.551963][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.551963][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.551963][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.551963][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.551963][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.551963][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.551963][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.551963][ T10] netlink_unicast+0x449/0x710 [ 2058.551963][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.551963][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.551963][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.551963][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.551963][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.551963][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.551963][ T10] [ 2058.553954][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2058.553954][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.553954][ T10] ipv6_find_idev+0x102/0x170 [ 2058.553954][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.553954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.553954][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.553954][ T10] netlink_unicast+0x449/0x710 [ 2058.553954][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.553954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.553954][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.553954][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.553954][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.553954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.553954][ T10] [ 2058.555472][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2058.555472][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.555472][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.555472][ T10] ipv6_find_idev+0x102/0x170 [ 2058.555472][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.555472][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.555472][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.555472][ T10] netlink_unicast+0x449/0x710 [ 2058.555472][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.555472][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.555472][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.555472][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.555472][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.555472][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.555472][ T10] [ 2058.557142][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2058.557405][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2058.557405][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.557405][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.557405][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.557405][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.557405][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.557405][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.557405][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.557405][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.557405][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.557405][ T10] netlink_unicast+0x449/0x710 [ 2058.557405][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.557405][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.557405][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.557405][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.557405][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.557405][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.557405][ T10] [ 2058.559395][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2058.559395][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.559395][ T10] ipv6_find_idev+0x102/0x170 [ 2058.559395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.559395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.559395][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.559395][ T10] netlink_unicast+0x449/0x710 [ 2058.559395][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.559395][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.559395][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.559395][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.559395][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.559395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.559395][ T10] [ 2058.560926][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2058.560926][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.560926][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.560926][ T10] ipv6_find_idev+0x102/0x170 [ 2058.560926][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.560926][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.560926][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.560926][ T10] netlink_unicast+0x449/0x710 [ 2058.560926][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.560926][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.560926][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.560926][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.560926][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.560926][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.560926][ T10] [ 2058.562601][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2058.562884][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2058.562884][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.562884][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.562884][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.562884][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.562884][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.562884][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.562884][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.562884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.562884][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.562884][ T10] netlink_unicast+0x449/0x710 [ 2058.562884][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.562884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.562884][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.562884][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.562884][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.562884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.562884][ T10] [ 2058.564855][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2058.564855][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.564855][ T10] ipv6_find_idev+0x102/0x170 [ 2058.564855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.564855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.564855][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.564855][ T10] netlink_unicast+0x449/0x710 [ 2058.564855][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.564855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.564855][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.564855][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.564855][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.564855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.564855][ T10] [ 2058.566440][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2058.566440][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.566440][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.566440][ T10] ipv6_find_idev+0x102/0x170 [ 2058.566440][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.566440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.566440][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.566440][ T10] netlink_unicast+0x449/0x710 [ 2058.566440][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.566440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.566440][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.566440][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.566440][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.566440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.566440][ T10] [ 2058.568303][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2058.568570][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2058.568570][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.568570][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.568570][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.568570][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.568570][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.568570][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.568570][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.568570][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.568570][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.568570][ T10] netlink_unicast+0x449/0x710 [ 2058.568570][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.568570][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.568570][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.568570][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.568570][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.568570][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.568570][ T10] [ 2058.570746][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2058.570746][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.570746][ T10] ipv6_find_idev+0x102/0x170 [ 2058.570746][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.570746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.570746][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.570746][ T10] netlink_unicast+0x449/0x710 [ 2058.570746][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.570746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.570746][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.570746][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.570746][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.570746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.570746][ T10] [ 2058.572390][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2058.572390][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.572390][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.572390][ T10] ipv6_find_idev+0x102/0x170 [ 2058.572390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.572390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.572390][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.572390][ T10] netlink_unicast+0x449/0x710 [ 2058.572390][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.572390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.572390][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.572390][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.572390][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.572390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.572390][ T10] [ 2058.574696][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2058.574959][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2058.574959][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.574959][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.574959][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.574959][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.574959][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.574959][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.574959][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.574959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.574959][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.574959][ T10] netlink_unicast+0x449/0x710 [ 2058.574959][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.574959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.574959][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.574959][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.574959][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.574959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.574959][ T10] [ 2058.576929][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2058.576929][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.576929][ T10] ipv6_find_idev+0x102/0x170 [ 2058.576929][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.576929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.576929][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.576929][ T10] netlink_unicast+0x449/0x710 [ 2058.576929][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.576929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.576929][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.576929][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.576929][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.576929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.576929][ T10] [ 2058.578508][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2058.578508][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.578508][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.578508][ T10] ipv6_find_idev+0x102/0x170 [ 2058.578508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.578508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.578508][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.578508][ T10] netlink_unicast+0x449/0x710 [ 2058.578508][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.578508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.578508][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.578508][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.578508][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.578508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.578508][ T10] [ 2058.580444][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2058.580794][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2058.580794][ T10] netdev_get_by_index+0x5e/0x80 [ 2058.580794][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2058.580794][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2058.580794][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2058.580794][ T10] ipv6_add_addr+0x411/0x2000 [ 2058.580794][ T10] inet6_addr_add+0x30e/0xa40 [ 2058.580794][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.580794][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.580794][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.580794][ T10] netlink_unicast+0x449/0x710 [ 2058.580794][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.580794][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.580794][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.580794][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.580794][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.580794][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.580794][ T10] [ 2058.582944][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2058.582944][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2058.582944][ T10] ipv6_find_idev+0x102/0x170 [ 2058.582944][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.582944][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.582944][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.582944][ T10] netlink_unicast+0x449/0x710 [ 2058.582944][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.582944][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.582944][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.582944][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.582944][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.582944][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.582944][ T10] [ 2058.584572][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2058.584572][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2058.584572][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2058.584572][ T10] ipv6_find_idev+0x102/0x170 [ 2058.584572][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.584572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.584572][ T10] netlink_rcv_skb+0x130/0x360 [ 2058.584572][ T10] netlink_unicast+0x449/0x710 [ 2058.584572][ T10] netlink_sendmsg+0x723/0xbe0 [ 2058.584572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2058.584572][ T10] ___sys_sendmsg+0xee/0x170 [ 2058.584572][ T10] __sys_sendmsg+0xcd/0x170 [ 2058.584572][ T10] do_syscall_64+0xc6/0x1e0 [ 2058.584572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.584572][ T10] [ 2068.589423][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2068.589746][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2068.589746][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.589746][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.589746][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.589746][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.589746][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.589746][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.589746][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.589746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.589746][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.589746][ T10] netlink_unicast+0x449/0x710 [ 2068.589746][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.589746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.589746][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.589746][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.589746][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.589746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.589746][ T10] [ 2068.591787][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2068.591787][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.591787][ T10] ipv6_find_idev+0x102/0x170 [ 2068.591787][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.591787][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.591787][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.591787][ T10] netlink_unicast+0x449/0x710 [ 2068.591787][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.591787][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.591787][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.591787][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.591787][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.591787][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.591787][ T10] [ 2068.593344][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2068.593344][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.593344][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.593344][ T10] ipv6_find_idev+0x102/0x170 [ 2068.593344][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.593344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.593344][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.593344][ T10] netlink_unicast+0x449/0x710 [ 2068.593344][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.593344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.593344][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.593344][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.593344][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.593344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.593344][ T10] [ 2068.595045][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2068.595311][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2068.595311][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.595311][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.595311][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.595311][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.595311][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.595311][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.595311][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.595311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.595311][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.595311][ T10] netlink_unicast+0x449/0x710 [ 2068.595311][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.595311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.595311][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.595311][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.595311][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.595311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.595311][ T10] [ 2068.597305][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2068.597305][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.597305][ T10] ipv6_find_idev+0x102/0x170 [ 2068.597305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.597305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.597305][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.597305][ T10] netlink_unicast+0x449/0x710 [ 2068.597305][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.597305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.597305][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.597305][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.597305][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.597305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.597305][ T10] [ 2068.598853][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2068.598853][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.598853][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.598853][ T10] ipv6_find_idev+0x102/0x170 [ 2068.598853][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.598853][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.598853][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.598853][ T10] netlink_unicast+0x449/0x710 [ 2068.598853][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.598853][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.598853][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.598853][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.598853][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.598853][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.598853][ T10] [ 2068.601113][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2068.601382][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2068.601382][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.601382][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.601382][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.601382][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.601382][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.601382][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.601382][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.601382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.601382][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.601382][ T10] netlink_unicast+0x449/0x710 [ 2068.601382][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.601382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.601382][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.601382][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.601382][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.601382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.601382][ T10] [ 2068.603377][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2068.603377][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.603377][ T10] ipv6_find_idev+0x102/0x170 [ 2068.603377][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.603377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.603377][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.603377][ T10] netlink_unicast+0x449/0x710 [ 2068.603377][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.603377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.603377][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.603377][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.603377][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.603377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.603377][ T10] [ 2068.604897][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2068.604897][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.604897][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.604897][ T10] ipv6_find_idev+0x102/0x170 [ 2068.604897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.604897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.604897][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.604897][ T10] netlink_unicast+0x449/0x710 [ 2068.604897][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.604897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.604897][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.604897][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.604897][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.604897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.604897][ T10] [ 2068.606610][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2068.606946][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2068.606946][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.606946][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.606946][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.606946][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.606946][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.606946][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.606946][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.606946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.606946][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.606946][ T10] netlink_unicast+0x449/0x710 [ 2068.606946][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.606946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.606946][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.606946][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.606946][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.606946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.606946][ T10] [ 2068.608908][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2068.608908][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.608908][ T10] ipv6_find_idev+0x102/0x170 [ 2068.608908][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.608908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.608908][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.608908][ T10] netlink_unicast+0x449/0x710 [ 2068.608908][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.608908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.608908][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.608908][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.608908][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.608908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.608908][ T10] [ 2068.610468][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2068.610468][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.610468][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.610468][ T10] ipv6_find_idev+0x102/0x170 [ 2068.610468][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.610468][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.610468][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.610468][ T10] netlink_unicast+0x449/0x710 [ 2068.610468][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.610468][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.610468][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.610468][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.610468][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.610468][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.610468][ T10] [ 2068.612200][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2068.612469][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2068.612469][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.612469][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.612469][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.612469][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.612469][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.612469][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.612469][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.612469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.612469][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.612469][ T10] netlink_unicast+0x449/0x710 [ 2068.612469][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.612469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.612469][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.612469][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.612469][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.612469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.612469][ T10] [ 2068.614605][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2068.614605][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.614605][ T10] ipv6_find_idev+0x102/0x170 [ 2068.614605][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.614605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.614605][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.614605][ T10] netlink_unicast+0x449/0x710 [ 2068.614605][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.614605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.614605][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.614605][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.614605][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.614605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.614605][ T10] [ 2068.616336][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2068.616336][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.616336][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.616336][ T10] ipv6_find_idev+0x102/0x170 [ 2068.616336][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.616336][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.616336][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.616336][ T10] netlink_unicast+0x449/0x710 [ 2068.616336][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.616336][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.616336][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.616336][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.616336][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.616336][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.616336][ T10] [ 2068.618279][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2068.618541][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2068.618541][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.618541][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.618541][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.618541][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.618541][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.618541][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.618541][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.618541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.618541][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.618541][ T10] netlink_unicast+0x449/0x710 [ 2068.618541][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.618541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.618541][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.618541][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.618541][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.618541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.618541][ T10] [ 2068.620590][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2068.620590][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.620590][ T10] ipv6_find_idev+0x102/0x170 [ 2068.620590][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.620590][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.620590][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.620590][ T10] netlink_unicast+0x449/0x710 [ 2068.620590][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.620590][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.620590][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.620590][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.620590][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.620590][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.620590][ T10] [ 2068.622331][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2068.622331][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.622331][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.622331][ T10] ipv6_find_idev+0x102/0x170 [ 2068.622331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.622331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.622331][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.622331][ T10] netlink_unicast+0x449/0x710 [ 2068.622331][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.622331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.622331][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.622331][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.622331][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.622331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.622331][ T10] [ 2068.624343][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2068.624610][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2068.624610][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.624610][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.624610][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.624610][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.624610][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.624610][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.624610][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.624610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.624610][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.624610][ T10] netlink_unicast+0x449/0x710 [ 2068.624610][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.624610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.624610][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.624610][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.624610][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.624610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.624610][ T10] [ 2068.626870][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2068.626870][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.626870][ T10] ipv6_find_idev+0x102/0x170 [ 2068.626870][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.626870][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.626870][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.626870][ T10] netlink_unicast+0x449/0x710 [ 2068.626870][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.626870][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.626870][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.626870][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.626870][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.626870][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.626870][ T10] [ 2068.628458][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2068.628458][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.628458][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.628458][ T10] ipv6_find_idev+0x102/0x170 [ 2068.628458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.628458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.628458][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.628458][ T10] netlink_unicast+0x449/0x710 [ 2068.628458][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.628458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.628458][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.628458][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.628458][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.628458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.628458][ T10] [ 2068.630422][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2068.630757][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2068.630757][ T10] netdev_get_by_index+0x5e/0x80 [ 2068.630757][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2068.630757][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2068.630757][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2068.630757][ T10] ipv6_add_addr+0x411/0x2000 [ 2068.630757][ T10] inet6_addr_add+0x30e/0xa40 [ 2068.630757][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.630757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.630757][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.630757][ T10] netlink_unicast+0x449/0x710 [ 2068.630757][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.630757][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.630757][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.630757][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.630757][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.630757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.630757][ T10] [ 2068.632755][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2068.632755][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2068.632755][ T10] ipv6_find_idev+0x102/0x170 [ 2068.632755][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.632755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.632755][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.632755][ T10] netlink_unicast+0x449/0x710 [ 2068.632755][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.632755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.632755][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.632755][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.632755][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.632755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.632755][ T10] [ 2068.634357][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2068.634357][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2068.634357][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2068.634357][ T10] ipv6_find_idev+0x102/0x170 [ 2068.634357][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.634357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.634357][ T10] netlink_rcv_skb+0x130/0x360 [ 2068.634357][ T10] netlink_unicast+0x449/0x710 [ 2068.634357][ T10] netlink_sendmsg+0x723/0xbe0 [ 2068.634357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2068.634357][ T10] ___sys_sendmsg+0xee/0x170 [ 2068.634357][ T10] __sys_sendmsg+0xcd/0x170 [ 2068.634357][ T10] do_syscall_64+0xc6/0x1e0 [ 2068.634357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.634357][ T10] [ 2078.763679][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2078.764021][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2078.764021][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.764021][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.764021][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.764021][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.764021][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.764021][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.764021][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.764021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.764021][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.764021][ T10] netlink_unicast+0x449/0x710 [ 2078.764021][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.764021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.764021][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.764021][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.764021][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.764021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.764021][ T10] [ 2078.766030][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2078.766030][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.766030][ T10] ipv6_find_idev+0x102/0x170 [ 2078.766030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.766030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.766030][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.766030][ T10] netlink_unicast+0x449/0x710 [ 2078.766030][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.766030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.766030][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.766030][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.766030][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.766030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.766030][ T10] [ 2078.767561][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2078.767561][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.767561][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.767561][ T10] ipv6_find_idev+0x102/0x170 [ 2078.767561][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.767561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.767561][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.767561][ T10] netlink_unicast+0x449/0x710 [ 2078.767561][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.767561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.767561][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.767561][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.767561][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.767561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.767561][ T10] [ 2078.769219][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2078.769484][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2078.769484][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.769484][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.769484][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.769484][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.769484][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.769484][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.769484][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.769484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.769484][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.769484][ T10] netlink_unicast+0x449/0x710 [ 2078.769484][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.769484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.769484][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.769484][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.769484][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.769484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.769484][ T10] [ 2078.771478][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2078.771478][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.771478][ T10] ipv6_find_idev+0x102/0x170 [ 2078.771478][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.771478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.771478][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.771478][ T10] netlink_unicast+0x449/0x710 [ 2078.771478][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.771478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.771478][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.771478][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.771478][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.771478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.771478][ T10] [ 2078.773009][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2078.773009][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.773009][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.773009][ T10] ipv6_find_idev+0x102/0x170 [ 2078.773009][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.773009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.773009][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.773009][ T10] netlink_unicast+0x449/0x710 [ 2078.773009][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.773009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.773009][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.773009][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.773009][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.773009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.773009][ T10] [ 2078.774685][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2078.774952][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2078.774952][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.774952][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.774952][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.774952][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.774952][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.774952][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.774952][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.774952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.774952][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.774952][ T10] netlink_unicast+0x449/0x710 [ 2078.774952][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.774952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.774952][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.774952][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.774952][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.774952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.774952][ T10] [ 2078.776949][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2078.776949][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.776949][ T10] ipv6_find_idev+0x102/0x170 [ 2078.776949][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.776949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.776949][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.776949][ T10] netlink_unicast+0x449/0x710 [ 2078.776949][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.776949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.776949][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.776949][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.776949][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.776949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.776949][ T10] [ 2078.778504][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2078.778504][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.778504][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.778504][ T10] ipv6_find_idev+0x102/0x170 [ 2078.778504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.778504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.778504][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.778504][ T10] netlink_unicast+0x449/0x710 [ 2078.778504][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.778504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.778504][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.778504][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.778504][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.778504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.778504][ T10] [ 2078.780183][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2078.780511][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2078.780511][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.780511][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.780511][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.780511][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.780511][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.780511][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.780511][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.780511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.780511][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.780511][ T10] netlink_unicast+0x449/0x710 [ 2078.780511][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.780511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.780511][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.780511][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.780511][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.780511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.780511][ T10] [ 2078.782538][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2078.782538][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.782538][ T10] ipv6_find_idev+0x102/0x170 [ 2078.782538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.782538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.782538][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.782538][ T10] netlink_unicast+0x449/0x710 [ 2078.782538][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.782538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.782538][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.782538][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.782538][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.782538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.782538][ T10] [ 2078.784044][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2078.784044][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.784044][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.784044][ T10] ipv6_find_idev+0x102/0x170 [ 2078.784044][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.784044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.784044][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.784044][ T10] netlink_unicast+0x449/0x710 [ 2078.784044][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.784044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.784044][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.784044][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.784044][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.784044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.784044][ T10] [ 2078.785770][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2078.786030][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2078.786030][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.786030][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.786030][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.786030][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.786030][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.786030][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.786030][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.786030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.786030][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.786030][ T10] netlink_unicast+0x449/0x710 [ 2078.786030][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.786030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.786030][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.786030][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.786030][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.786030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.786030][ T10] [ 2078.788230][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2078.788230][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.788230][ T10] ipv6_find_idev+0x102/0x170 [ 2078.788230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.788230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.788230][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.788230][ T10] netlink_unicast+0x449/0x710 [ 2078.788230][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.788230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.788230][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.788230][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.788230][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.788230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.788230][ T10] [ 2078.789794][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2078.789794][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.789794][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.789794][ T10] ipv6_find_idev+0x102/0x170 [ 2078.789794][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.789794][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.789794][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.789794][ T10] netlink_unicast+0x449/0x710 [ 2078.789794][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.789794][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.789794][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.789794][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.789794][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.789794][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.789794][ T10] [ 2078.791670][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2078.791994][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2078.791994][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.791994][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.791994][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.791994][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.791994][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.791994][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.791994][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.791994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.791994][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.791994][ T10] netlink_unicast+0x449/0x710 [ 2078.791994][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.791994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.791994][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.791994][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.791994][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.791994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.791994][ T10] [ 2078.794237][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2078.794237][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.794237][ T10] ipv6_find_idev+0x102/0x170 [ 2078.794237][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.794237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.794237][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.794237][ T10] netlink_unicast+0x449/0x710 [ 2078.794237][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.794237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.794237][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.794237][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.794237][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.794237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.794237][ T10] [ 2078.795933][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2078.795933][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.795933][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.795933][ T10] ipv6_find_idev+0x102/0x170 [ 2078.795933][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.795933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.795933][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.795933][ T10] netlink_unicast+0x449/0x710 [ 2078.795933][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.795933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.795933][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.795933][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.795933][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.795933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.795933][ T10] [ 2078.797742][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2078.797999][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2078.797999][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.797999][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.797999][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.797999][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.797999][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.797999][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.797999][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.797999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.797999][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.797999][ T10] netlink_unicast+0x449/0x710 [ 2078.797999][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.797999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.797999][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.797999][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.797999][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.797999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.797999][ T10] [ 2078.800025][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2078.800025][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.800025][ T10] ipv6_find_idev+0x102/0x170 [ 2078.800025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.800025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.800025][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.800025][ T10] netlink_unicast+0x449/0x710 [ 2078.800025][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.800025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.800025][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.800025][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.800025][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.800025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.800025][ T10] [ 2078.801847][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2078.801847][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.801847][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.801847][ T10] ipv6_find_idev+0x102/0x170 [ 2078.801847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.801847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.801847][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.801847][ T10] netlink_unicast+0x449/0x710 [ 2078.801847][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.801847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.801847][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.801847][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.801847][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.801847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.801847][ T10] [ 2078.803699][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2078.803955][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2078.803955][ T10] netdev_get_by_index+0x5e/0x80 [ 2078.803955][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2078.803955][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2078.803955][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2078.803955][ T10] ipv6_add_addr+0x411/0x2000 [ 2078.803955][ T10] inet6_addr_add+0x30e/0xa40 [ 2078.803955][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2078.803955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.803955][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.803955][ T10] netlink_unicast+0x449/0x710 [ 2078.803955][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.803955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.803955][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.803955][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.803955][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.803955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.803955][ T10] [ 2078.806007][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2078.806007][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2078.806007][ T10] ipv6_find_idev+0x102/0x170 [ 2078.806007][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.806007][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.806007][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.806007][ T10] netlink_unicast+0x449/0x710 [ 2078.806007][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.806007][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.806007][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.806007][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.806007][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.806007][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.806007][ T10] [ 2078.807767][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2078.807767][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2078.807767][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2078.807767][ T10] ipv6_find_idev+0x102/0x170 [ 2078.807767][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2078.807767][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2078.807767][ T10] netlink_rcv_skb+0x130/0x360 [ 2078.807767][ T10] netlink_unicast+0x449/0x710 [ 2078.807767][ T10] netlink_sendmsg+0x723/0xbe0 [ 2078.807767][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2078.807767][ T10] ___sys_sendmsg+0xee/0x170 [ 2078.807767][ T10] __sys_sendmsg+0xcd/0x170 [ 2078.807767][ T10] do_syscall_64+0xc6/0x1e0 [ 2078.807767][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2078.807767][ T10] [ 2088.963758][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2088.964201][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2088.964201][ T10] netdev_get_by_index+0x5e/0x80 [ 2088.964201][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2088.964201][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2088.964201][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2088.964201][ T10] ipv6_add_addr+0x411/0x2000 [ 2088.964201][ T10] inet6_addr_add+0x30e/0xa40 [ 2088.964201][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2088.964201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.964201][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.964201][ T10] netlink_unicast+0x449/0x710 [ 2088.964201][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.964201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.964201][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.964201][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.964201][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.964201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.964201][ T10] [ 2088.966288][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2088.966288][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2088.966288][ T10] ipv6_find_idev+0x102/0x170 [ 2088.966288][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.966288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.966288][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.966288][ T10] netlink_unicast+0x449/0x710 [ 2088.966288][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.966288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.966288][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.966288][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.966288][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.966288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.966288][ T10] [ 2088.967846][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2088.967846][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2088.967846][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2088.967846][ T10] ipv6_find_idev+0x102/0x170 [ 2088.967846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.967846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.967846][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.967846][ T10] netlink_unicast+0x449/0x710 [ 2088.967846][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.967846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.967846][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.967846][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.967846][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.967846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.967846][ T10] [ 2088.969554][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2088.969838][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2088.969838][ T10] netdev_get_by_index+0x5e/0x80 [ 2088.969838][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2088.969838][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2088.969838][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2088.969838][ T10] ipv6_add_addr+0x411/0x2000 [ 2088.969838][ T10] inet6_addr_add+0x30e/0xa40 [ 2088.969838][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2088.969838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.969838][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.969838][ T10] netlink_unicast+0x449/0x710 [ 2088.969838][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.969838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.969838][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.969838][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.969838][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.969838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.969838][ T10] [ 2088.971868][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2088.971868][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2088.971868][ T10] ipv6_find_idev+0x102/0x170 [ 2088.971868][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.971868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.971868][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.971868][ T10] netlink_unicast+0x449/0x710 [ 2088.971868][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.971868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.971868][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.971868][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.971868][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.971868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.971868][ T10] [ 2088.973439][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2088.973439][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2088.973439][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2088.973439][ T10] ipv6_find_idev+0x102/0x170 [ 2088.973439][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.973439][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.973439][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.973439][ T10] netlink_unicast+0x449/0x710 [ 2088.973439][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.973439][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.973439][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.973439][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.973439][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.973439][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.973439][ T10] [ 2088.975138][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2088.975405][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2088.975405][ T10] netdev_get_by_index+0x5e/0x80 [ 2088.975405][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2088.975405][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2088.975405][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2088.975405][ T10] ipv6_add_addr+0x411/0x2000 [ 2088.975405][ T10] inet6_addr_add+0x30e/0xa40 [ 2088.975405][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2088.975405][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.975405][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.975405][ T10] netlink_unicast+0x449/0x710 [ 2088.975405][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.975405][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.975405][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.975405][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.975405][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.975405][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.975405][ T10] [ 2088.977390][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2088.977390][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2088.977390][ T10] ipv6_find_idev+0x102/0x170 [ 2088.977390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.977390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.977390][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.977390][ T10] netlink_unicast+0x449/0x710 [ 2088.977390][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.977390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.977390][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.977390][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.977390][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.977390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.977390][ T10] [ 2088.978926][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2088.978926][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2088.978926][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2088.978926][ T10] ipv6_find_idev+0x102/0x170 [ 2088.978926][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.978926][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.978926][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.978926][ T10] netlink_unicast+0x449/0x710 [ 2088.978926][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.978926][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.978926][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.978926][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.978926][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.978926][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.978926][ T10] [ 2088.980752][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2088.981021][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2088.981021][ T10] netdev_get_by_index+0x5e/0x80 [ 2088.981021][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2088.981021][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2088.981021][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2088.981021][ T10] ipv6_add_addr+0x411/0x2000 [ 2088.981021][ T10] inet6_addr_add+0x30e/0xa40 [ 2088.981021][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2088.981021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.981021][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.981021][ T10] netlink_unicast+0x449/0x710 [ 2088.981021][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.981021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.981021][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.981021][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.981021][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.981021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.981021][ T10] [ 2088.983372][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2088.983372][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2088.983372][ T10] ipv6_find_idev+0x102/0x170 [ 2088.983372][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.983372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.983372][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.983372][ T10] netlink_unicast+0x449/0x710 [ 2088.983372][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.983372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.983372][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.983372][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.983372][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.983372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.983372][ T10] [ 2088.985065][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2088.985065][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2088.985065][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2088.985065][ T10] ipv6_find_idev+0x102/0x170 [ 2088.985065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.985065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.985065][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.985065][ T10] netlink_unicast+0x449/0x710 [ 2088.985065][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.985065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.985065][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.985065][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.985065][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.985065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.985065][ T10] [ 2088.986984][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2088.987257][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2088.987257][ T10] netdev_get_by_index+0x5e/0x80 [ 2088.987257][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2088.987257][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2088.987257][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2088.987257][ T10] ipv6_add_addr+0x411/0x2000 [ 2088.987257][ T10] inet6_addr_add+0x30e/0xa40 [ 2088.987257][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2088.987257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.987257][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.987257][ T10] netlink_unicast+0x449/0x710 [ 2088.987257][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.987257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.987257][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.987257][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.987257][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.987257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.987257][ T10] [ 2088.989353][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2088.989353][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2088.989353][ T10] ipv6_find_idev+0x102/0x170 [ 2088.989353][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.989353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.989353][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.989353][ T10] netlink_unicast+0x449/0x710 [ 2088.989353][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.989353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.989353][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.989353][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.989353][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.989353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.989353][ T10] [ 2088.991051][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2088.991051][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2088.991051][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2088.991051][ T10] ipv6_find_idev+0x102/0x170 [ 2088.991051][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.991051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.991051][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.991051][ T10] netlink_unicast+0x449/0x710 [ 2088.991051][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.991051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.991051][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.991051][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.991051][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.991051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.991051][ T10] [ 2088.993067][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2088.993397][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2088.993397][ T10] netdev_get_by_index+0x5e/0x80 [ 2088.993397][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2088.993397][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2088.993397][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2088.993397][ T10] ipv6_add_addr+0x411/0x2000 [ 2088.993397][ T10] inet6_addr_add+0x30e/0xa40 [ 2088.993397][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2088.993397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.993397][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.993397][ T10] netlink_unicast+0x449/0x710 [ 2088.993397][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.993397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.993397][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.993397][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.993397][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.993397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.993397][ T10] [ 2088.995624][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2088.995624][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2088.995624][ T10] ipv6_find_idev+0x102/0x170 [ 2088.995624][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.995624][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.995624][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.995624][ T10] netlink_unicast+0x449/0x710 [ 2088.995624][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.995624][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.995624][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.995624][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.995624][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.995624][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.995624][ T10] [ 2088.997298][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2088.997298][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2088.997298][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2088.997298][ T10] ipv6_find_idev+0x102/0x170 [ 2088.997298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2088.997298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.997298][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.997298][ T10] netlink_unicast+0x449/0x710 [ 2088.997298][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.997298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.997298][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.997298][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.997298][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.997298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.997298][ T10] [ 2088.999219][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2088.999540][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2088.999540][ T10] netdev_get_by_index+0x5e/0x80 [ 2088.999540][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2088.999540][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2088.999540][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2088.999540][ T10] ipv6_add_addr+0x411/0x2000 [ 2088.999540][ T10] inet6_addr_add+0x30e/0xa40 [ 2088.999540][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2088.999540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2088.999540][ T10] netlink_rcv_skb+0x130/0x360 [ 2088.999540][ T10] netlink_unicast+0x449/0x710 [ 2088.999540][ T10] netlink_sendmsg+0x723/0xbe0 [ 2088.999540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2088.999540][ T10] ___sys_sendmsg+0xee/0x170 [ 2088.999540][ T10] __sys_sendmsg+0xcd/0x170 [ 2088.999540][ T10] do_syscall_64+0xc6/0x1e0 [ 2088.999540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2088.999540][ T10] [ 2089.001606][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2089.001606][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2089.001606][ T10] ipv6_find_idev+0x102/0x170 [ 2089.001606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.001606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.001606][ T10] netlink_rcv_skb+0x130/0x360 [ 2089.001606][ T10] netlink_unicast+0x449/0x710 [ 2089.001606][ T10] netlink_sendmsg+0x723/0xbe0 [ 2089.001606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2089.001606][ T10] ___sys_sendmsg+0xee/0x170 [ 2089.001606][ T10] __sys_sendmsg+0xcd/0x170 [ 2089.001606][ T10] do_syscall_64+0xc6/0x1e0 [ 2089.001606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.001606][ T10] [ 2089.003224][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2089.003224][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2089.003224][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2089.003224][ T10] ipv6_find_idev+0x102/0x170 [ 2089.003224][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.003224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.003224][ T10] netlink_rcv_skb+0x130/0x360 [ 2089.003224][ T10] netlink_unicast+0x449/0x710 [ 2089.003224][ T10] netlink_sendmsg+0x723/0xbe0 [ 2089.003224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2089.003224][ T10] ___sys_sendmsg+0xee/0x170 [ 2089.003224][ T10] __sys_sendmsg+0xcd/0x170 [ 2089.003224][ T10] do_syscall_64+0xc6/0x1e0 [ 2089.003224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.003224][ T10] [ 2089.005072][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2089.005386][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2089.005386][ T10] netdev_get_by_index+0x5e/0x80 [ 2089.005386][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2089.005386][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2089.005386][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2089.005386][ T10] ipv6_add_addr+0x411/0x2000 [ 2089.005386][ T10] inet6_addr_add+0x30e/0xa40 [ 2089.005386][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2089.005386][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.005386][ T10] netlink_rcv_skb+0x130/0x360 [ 2089.005386][ T10] netlink_unicast+0x449/0x710 [ 2089.005386][ T10] netlink_sendmsg+0x723/0xbe0 [ 2089.005386][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2089.005386][ T10] ___sys_sendmsg+0xee/0x170 [ 2089.005386][ T10] __sys_sendmsg+0xcd/0x170 [ 2089.005386][ T10] do_syscall_64+0xc6/0x1e0 [ 2089.005386][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.005386][ T10] [ 2089.007500][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2089.007500][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2089.007500][ T10] ipv6_find_idev+0x102/0x170 [ 2089.007500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.007500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.007500][ T10] netlink_rcv_skb+0x130/0x360 [ 2089.007500][ T10] netlink_unicast+0x449/0x710 [ 2089.007500][ T10] netlink_sendmsg+0x723/0xbe0 [ 2089.007500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2089.007500][ T10] ___sys_sendmsg+0xee/0x170 [ 2089.007500][ T10] __sys_sendmsg+0xcd/0x170 [ 2089.007500][ T10] do_syscall_64+0xc6/0x1e0 [ 2089.007500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.007500][ T10] [ 2089.009115][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2089.009115][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2089.009115][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2089.009115][ T10] ipv6_find_idev+0x102/0x170 [ 2089.009115][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.009115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.009115][ T10] netlink_rcv_skb+0x130/0x360 [ 2089.009115][ T10] netlink_unicast+0x449/0x710 [ 2089.009115][ T10] netlink_sendmsg+0x723/0xbe0 [ 2089.009115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2089.009115][ T10] ___sys_sendmsg+0xee/0x170 [ 2089.009115][ T10] __sys_sendmsg+0xcd/0x170 [ 2089.009115][ T10] do_syscall_64+0xc6/0x1e0 [ 2089.009115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.009115][ T10] [ 2099.148870][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2099.149196][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2099.149196][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.149196][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.149196][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.149196][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.149196][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.149196][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.149196][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.149196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.149196][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.149196][ T10] netlink_unicast+0x449/0x710 [ 2099.149196][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.149196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.149196][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.149196][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.149196][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.149196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.149196][ T10] [ 2099.151311][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2099.151311][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.151311][ T10] ipv6_find_idev+0x102/0x170 [ 2099.151311][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.151311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.151311][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.151311][ T10] netlink_unicast+0x449/0x710 [ 2099.151311][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.151311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.151311][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.151311][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.151311][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.151311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.151311][ T10] [ 2099.152876][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2099.152876][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.152876][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.152876][ T10] ipv6_find_idev+0x102/0x170 [ 2099.152876][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.152876][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.152876][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.152876][ T10] netlink_unicast+0x449/0x710 [ 2099.152876][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.152876][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.152876][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.152876][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.152876][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.152876][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.152876][ T10] [ 2099.154602][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2099.154894][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2099.154894][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.154894][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.154894][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.154894][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.154894][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.154894][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.154894][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.154894][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.154894][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.154894][ T10] netlink_unicast+0x449/0x710 [ 2099.154894][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.154894][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.154894][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.154894][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.154894][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.154894][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.154894][ T10] [ 2099.156923][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2099.156923][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.156923][ T10] ipv6_find_idev+0x102/0x170 [ 2099.156923][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.156923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.156923][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.156923][ T10] netlink_unicast+0x449/0x710 [ 2099.156923][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.156923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.156923][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.156923][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.156923][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.156923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.156923][ T10] [ 2099.158492][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2099.158492][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.158492][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.158492][ T10] ipv6_find_idev+0x102/0x170 [ 2099.158492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.158492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.158492][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.158492][ T10] netlink_unicast+0x449/0x710 [ 2099.158492][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.158492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.158492][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.158492][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.158492][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.158492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.158492][ T10] [ 2099.160303][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2099.160586][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2099.160586][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.160586][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.160586][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.160586][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.160586][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.160586][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.160586][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.160586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.160586][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.160586][ T10] netlink_unicast+0x449/0x710 [ 2099.160586][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.160586][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.160586][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.160586][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.160586][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.160586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.160586][ T10] [ 2099.162771][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2099.162771][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.162771][ T10] ipv6_find_idev+0x102/0x170 [ 2099.162771][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.162771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.162771][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.162771][ T10] netlink_unicast+0x449/0x710 [ 2099.162771][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.162771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.162771][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.162771][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.162771][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.162771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.162771][ T10] [ 2099.164476][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2099.164476][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.164476][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.164476][ T10] ipv6_find_idev+0x102/0x170 [ 2099.164476][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.164476][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.164476][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.164476][ T10] netlink_unicast+0x449/0x710 [ 2099.164476][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.164476][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.164476][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.164476][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.164476][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.164476][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.164476][ T10] [ 2099.166462][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2099.166785][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2099.166785][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.166785][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.166785][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.166785][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.166785][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.166785][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.166785][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.166785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.166785][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.166785][ T10] netlink_unicast+0x449/0x710 [ 2099.166785][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.166785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.166785][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.166785][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.166785][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.166785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.166785][ T10] [ 2099.169047][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2099.169047][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.169047][ T10] ipv6_find_idev+0x102/0x170 [ 2099.169047][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.169047][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.169047][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.169047][ T10] netlink_unicast+0x449/0x710 [ 2099.169047][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.169047][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.169047][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.169047][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.169047][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.169047][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.169047][ T10] [ 2099.170831][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2099.170831][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.170831][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.170831][ T10] ipv6_find_idev+0x102/0x170 [ 2099.170831][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.170831][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.170831][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.170831][ T10] netlink_unicast+0x449/0x710 [ 2099.170831][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.170831][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.170831][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.170831][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.170831][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.170831][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.170831][ T10] [ 2099.172822][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2099.173178][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2099.173178][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.173178][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.173178][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.173178][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.173178][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.173178][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.173178][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.173178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.173178][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.173178][ T10] netlink_unicast+0x449/0x710 [ 2099.173178][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.173178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.173178][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.173178][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.173178][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.173178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.173178][ T10] [ 2099.175597][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2099.175597][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.175597][ T10] ipv6_find_idev+0x102/0x170 [ 2099.175597][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.175597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.175597][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.175597][ T10] netlink_unicast+0x449/0x710 [ 2099.175597][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.175597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.175597][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.175597][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.175597][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.175597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.175597][ T10] [ 2099.177311][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2099.177311][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.177311][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.177311][ T10] ipv6_find_idev+0x102/0x170 [ 2099.177311][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.177311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.177311][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.177311][ T10] netlink_unicast+0x449/0x710 [ 2099.177311][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.177311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.177311][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.177311][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.177311][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.177311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.177311][ T10] [ 2099.179340][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2099.179745][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2099.179745][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.179745][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.179745][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.179745][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.179745][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.179745][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.179745][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.179745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.179745][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.179745][ T10] netlink_unicast+0x449/0x710 [ 2099.179745][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.179745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.179745][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.179745][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.179745][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.179745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.179745][ T10] [ 2099.181877][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2099.181877][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.181877][ T10] ipv6_find_idev+0x102/0x170 [ 2099.181877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.181877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.181877][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.181877][ T10] netlink_unicast+0x449/0x710 [ 2099.181877][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.181877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.181877][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.181877][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.181877][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.181877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.181877][ T10] [ 2099.183655][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2099.183655][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.183655][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.183655][ T10] ipv6_find_idev+0x102/0x170 [ 2099.183655][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.183655][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.183655][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.183655][ T10] netlink_unicast+0x449/0x710 [ 2099.183655][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.183655][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.183655][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.183655][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.183655][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.183655][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.183655][ T10] [ 2099.185727][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2099.186056][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2099.186056][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.186056][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.186056][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.186056][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.186056][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.186056][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.186056][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.186056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.186056][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.186056][ T10] netlink_unicast+0x449/0x710 [ 2099.186056][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.186056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.186056][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.186056][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.186056][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.186056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.186056][ T10] [ 2099.188218][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2099.188218][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.188218][ T10] ipv6_find_idev+0x102/0x170 [ 2099.188218][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.188218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.188218][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.188218][ T10] netlink_unicast+0x449/0x710 [ 2099.188218][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.188218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.188218][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.188218][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.188218][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.188218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.188218][ T10] [ 2099.189798][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2099.189798][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.189798][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.189798][ T10] ipv6_find_idev+0x102/0x170 [ 2099.189798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.189798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.189798][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.189798][ T10] netlink_unicast+0x449/0x710 [ 2099.189798][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.189798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.189798][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.189798][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.189798][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.189798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.189798][ T10] [ 2099.191652][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2099.191972][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2099.191972][ T10] netdev_get_by_index+0x5e/0x80 [ 2099.191972][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2099.191972][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2099.191972][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2099.191972][ T10] ipv6_add_addr+0x411/0x2000 [ 2099.191972][ T10] inet6_addr_add+0x30e/0xa40 [ 2099.191972][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.191972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.191972][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.191972][ T10] netlink_unicast+0x449/0x710 [ 2099.191972][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.191972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.191972][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.191972][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.191972][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.191972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.191972][ T10] [ 2099.194086][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2099.194086][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2099.194086][ T10] ipv6_find_idev+0x102/0x170 [ 2099.194086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.194086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.194086][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.194086][ T10] netlink_unicast+0x449/0x710 [ 2099.194086][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.194086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.194086][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.194086][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.194086][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.194086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.194086][ T10] [ 2099.195657][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2099.195657][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2099.195657][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2099.195657][ T10] ipv6_find_idev+0x102/0x170 [ 2099.195657][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.195657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.195657][ T10] netlink_rcv_skb+0x130/0x360 [ 2099.195657][ T10] netlink_unicast+0x449/0x710 [ 2099.195657][ T10] netlink_sendmsg+0x723/0xbe0 [ 2099.195657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2099.195657][ T10] ___sys_sendmsg+0xee/0x170 [ 2099.195657][ T10] __sys_sendmsg+0xcd/0x170 [ 2099.195657][ T10] do_syscall_64+0xc6/0x1e0 [ 2099.195657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.195657][ T10] [ 2109.323746][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2109.324089][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2109.324089][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.324089][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.324089][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.324089][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.324089][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.324089][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.324089][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.324089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.324089][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.324089][ T10] netlink_unicast+0x449/0x710 [ 2109.324089][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.324089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.324089][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.324089][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.324089][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.324089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.324089][ T10] [ 2109.326147][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2109.326147][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.326147][ T10] ipv6_find_idev+0x102/0x170 [ 2109.326147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.326147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.326147][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.326147][ T10] netlink_unicast+0x449/0x710 [ 2109.326147][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.326147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.326147][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.326147][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.326147][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.326147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.326147][ T10] [ 2109.327717][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2109.327717][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.327717][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.327717][ T10] ipv6_find_idev+0x102/0x170 [ 2109.327717][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.327717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.327717][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.327717][ T10] netlink_unicast+0x449/0x710 [ 2109.327717][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.327717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.327717][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.327717][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.327717][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.327717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.327717][ T10] [ 2109.329425][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2109.329717][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2109.329717][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.329717][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.329717][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.329717][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.329717][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.329717][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.329717][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.329717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.329717][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.329717][ T10] netlink_unicast+0x449/0x710 [ 2109.329717][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.329717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.329717][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.329717][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.329717][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.329717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.329717][ T10] [ 2109.331759][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2109.331759][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.331759][ T10] ipv6_find_idev+0x102/0x170 [ 2109.331759][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.331759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.331759][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.331759][ T10] netlink_unicast+0x449/0x710 [ 2109.331759][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.331759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.331759][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.331759][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.331759][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.331759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.331759][ T10] [ 2109.333401][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2109.333401][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.333401][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.333401][ T10] ipv6_find_idev+0x102/0x170 [ 2109.333401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.333401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.333401][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.333401][ T10] netlink_unicast+0x449/0x710 [ 2109.333401][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.333401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.333401][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.333401][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.333401][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.333401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.333401][ T10] [ 2109.335245][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2109.335509][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2109.335509][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.335509][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.335509][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.335509][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.335509][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.335509][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.335509][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.335509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.335509][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.335509][ T10] netlink_unicast+0x449/0x710 [ 2109.335509][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.335509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.335509][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.335509][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.335509][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.335509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.335509][ T10] [ 2109.337634][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2109.337634][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.337634][ T10] ipv6_find_idev+0x102/0x170 [ 2109.337634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.337634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.337634][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.337634][ T10] netlink_unicast+0x449/0x710 [ 2109.337634][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.337634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.337634][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.337634][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.337634][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.337634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.337634][ T10] [ 2109.339291][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2109.339291][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.339291][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.339291][ T10] ipv6_find_idev+0x102/0x170 [ 2109.339291][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.339291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.339291][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.339291][ T10] netlink_unicast+0x449/0x710 [ 2109.339291][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.339291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.339291][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.339291][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.339291][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.339291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.339291][ T10] [ 2109.340991][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2109.341260][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2109.341260][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.341260][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.341260][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.341260][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.341260][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.341260][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.341260][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.341260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.341260][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.341260][ T10] netlink_unicast+0x449/0x710 [ 2109.341260][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.341260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.341260][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.341260][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.341260][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.341260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.341260][ T10] [ 2109.343360][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2109.343360][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.343360][ T10] ipv6_find_idev+0x102/0x170 [ 2109.343360][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.343360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.343360][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.343360][ T10] netlink_unicast+0x449/0x710 [ 2109.343360][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.343360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.343360][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.343360][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.343360][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.343360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.343360][ T10] [ 2109.344985][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2109.344985][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.344985][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.344985][ T10] ipv6_find_idev+0x102/0x170 [ 2109.344985][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.344985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.344985][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.344985][ T10] netlink_unicast+0x449/0x710 [ 2109.344985][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.344985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.344985][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.344985][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.344985][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.344985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.344985][ T10] [ 2109.346949][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2109.347216][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2109.347216][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.347216][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.347216][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.347216][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.347216][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.347216][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.347216][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.347216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.347216][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.347216][ T10] netlink_unicast+0x449/0x710 [ 2109.347216][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.347216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.347216][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.347216][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.347216][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.347216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.347216][ T10] [ 2109.349283][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2109.349283][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.349283][ T10] ipv6_find_idev+0x102/0x170 [ 2109.349283][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.349283][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.349283][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.349283][ T10] netlink_unicast+0x449/0x710 [ 2109.349283][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.349283][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.349283][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.349283][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.349283][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.349283][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.349283][ T10] [ 2109.350863][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2109.350863][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.350863][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.350863][ T10] ipv6_find_idev+0x102/0x170 [ 2109.350863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.350863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.350863][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.350863][ T10] netlink_unicast+0x449/0x710 [ 2109.350863][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.350863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.350863][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.350863][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.350863][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.350863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.350863][ T10] [ 2109.353086][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2109.353786][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2109.353786][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.353786][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.353786][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.353786][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.353786][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.353786][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.353786][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.353786][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.353786][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.353786][ T10] netlink_unicast+0x449/0x710 [ 2109.353786][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.353786][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.353786][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.353786][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.353786][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.353786][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.353786][ T10] [ 2109.355788][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2109.355788][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.355788][ T10] ipv6_find_idev+0x102/0x170 [ 2109.355788][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.355788][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.355788][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.355788][ T10] netlink_unicast+0x449/0x710 [ 2109.355788][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.355788][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.355788][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.355788][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.355788][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.355788][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.355788][ T10] [ 2109.357333][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2109.357333][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.357333][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.357333][ T10] ipv6_find_idev+0x102/0x170 [ 2109.357333][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.357333][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.357333][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.357333][ T10] netlink_unicast+0x449/0x710 [ 2109.357333][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.357333][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.357333][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.357333][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.357333][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.357333][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.357333][ T10] [ 2109.359136][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2109.359522][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2109.359522][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.359522][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.359522][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.359522][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.359522][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.359522][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.359522][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.359522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.359522][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.359522][ T10] netlink_unicast+0x449/0x710 [ 2109.359522][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.359522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.359522][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.359522][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.359522][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.359522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.359522][ T10] [ 2109.361586][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2109.361586][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.361586][ T10] ipv6_find_idev+0x102/0x170 [ 2109.361586][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.361586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.361586][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.361586][ T10] netlink_unicast+0x449/0x710 [ 2109.361586][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.361586][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.361586][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.361586][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.361586][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.361586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.361586][ T10] [ 2109.363159][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2109.363159][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.363159][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.363159][ T10] ipv6_find_idev+0x102/0x170 [ 2109.363159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.363159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.363159][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.363159][ T10] netlink_unicast+0x449/0x710 [ 2109.363159][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.363159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.363159][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.363159][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.363159][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.363159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.363159][ T10] [ 2109.365094][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2109.365409][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2109.365409][ T10] netdev_get_by_index+0x5e/0x80 [ 2109.365409][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2109.365409][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2109.365409][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2109.365409][ T10] ipv6_add_addr+0x411/0x2000 [ 2109.365409][ T10] inet6_addr_add+0x30e/0xa40 [ 2109.365409][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.365409][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.365409][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.365409][ T10] netlink_unicast+0x449/0x710 [ 2109.365409][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.365409][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.365409][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.365409][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.365409][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.365409][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.365409][ T10] [ 2109.367421][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2109.367421][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2109.367421][ T10] ipv6_find_idev+0x102/0x170 [ 2109.367421][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.367421][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.367421][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.367421][ T10] netlink_unicast+0x449/0x710 [ 2109.367421][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.367421][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.367421][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.367421][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.367421][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.367421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.367421][ T10] [ 2109.369100][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2109.369100][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2109.369100][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2109.369100][ T10] ipv6_find_idev+0x102/0x170 [ 2109.369100][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.369100][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.369100][ T10] netlink_rcv_skb+0x130/0x360 [ 2109.369100][ T10] netlink_unicast+0x449/0x710 [ 2109.369100][ T10] netlink_sendmsg+0x723/0xbe0 [ 2109.369100][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2109.369100][ T10] ___sys_sendmsg+0xee/0x170 [ 2109.369100][ T10] __sys_sendmsg+0xcd/0x170 [ 2109.369100][ T10] do_syscall_64+0xc6/0x1e0 [ 2109.369100][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.369100][ T10] [ 2119.500661][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2119.500989][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2119.500989][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.500989][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.500989][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.500989][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.500989][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.500989][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.500989][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.500989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.500989][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.500989][ T10] netlink_unicast+0x449/0x710 [ 2119.500989][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.500989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.500989][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.500989][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.500989][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.500989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.500989][ T10] [ 2119.503027][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2119.503027][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.503027][ T10] ipv6_find_idev+0x102/0x170 [ 2119.503027][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.503027][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.503027][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.503027][ T10] netlink_unicast+0x449/0x710 [ 2119.503027][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.503027][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.503027][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.503027][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.503027][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.503027][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.503027][ T10] [ 2119.504580][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2119.504580][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.504580][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.504580][ T10] ipv6_find_idev+0x102/0x170 [ 2119.504580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.504580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.504580][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.504580][ T10] netlink_unicast+0x449/0x710 [ 2119.504580][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.504580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.504580][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.504580][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.504580][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.504580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.504580][ T10] [ 2119.506475][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2119.506790][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2119.506790][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.506790][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.506790][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.506790][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.506790][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.506790][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.506790][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.506790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.506790][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.506790][ T10] netlink_unicast+0x449/0x710 [ 2119.506790][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.506790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.506790][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.506790][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.506790][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.506790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.506790][ T10] [ 2119.508791][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2119.508791][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.508791][ T10] ipv6_find_idev+0x102/0x170 [ 2119.508791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.508791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.508791][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.508791][ T10] netlink_unicast+0x449/0x710 [ 2119.508791][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.508791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.508791][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.508791][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.508791][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.508791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.508791][ T10] [ 2119.510325][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2119.510325][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.510325][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.510325][ T10] ipv6_find_idev+0x102/0x170 [ 2119.510325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.510325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.510325][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.510325][ T10] netlink_unicast+0x449/0x710 [ 2119.510325][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.510325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.510325][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.510325][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.510325][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.510325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.510325][ T10] [ 2119.511989][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2119.512254][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2119.512254][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.512254][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.512254][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.512254][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.512254][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.512254][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.512254][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.512254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.512254][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.512254][ T10] netlink_unicast+0x449/0x710 [ 2119.512254][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.512254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.512254][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.512254][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.512254][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.512254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.512254][ T10] [ 2119.514233][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2119.514233][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.514233][ T10] ipv6_find_idev+0x102/0x170 [ 2119.514233][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.514233][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.514233][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.514233][ T10] netlink_unicast+0x449/0x710 [ 2119.514233][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.514233][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.514233][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.514233][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.514233][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.514233][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.514233][ T10] [ 2119.515761][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2119.515761][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.515761][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.515761][ T10] ipv6_find_idev+0x102/0x170 [ 2119.515761][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.515761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.515761][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.515761][ T10] netlink_unicast+0x449/0x710 [ 2119.515761][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.515761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.515761][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.515761][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.515761][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.515761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.515761][ T10] [ 2119.517836][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2119.518105][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2119.518105][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.518105][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.518105][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.518105][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.518105][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.518105][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.518105][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.518105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.518105][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.518105][ T10] netlink_unicast+0x449/0x710 [ 2119.518105][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.518105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.518105][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.518105][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.518105][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.518105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.518105][ T10] [ 2119.521141][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2119.521141][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.521141][ T10] ipv6_find_idev+0x102/0x170 [ 2119.521141][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.521141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.521141][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.521141][ T10] netlink_unicast+0x449/0x710 [ 2119.521141][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.521141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.521141][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.521141][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.521141][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.521141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.521141][ T10] [ 2119.523971][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2119.523971][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.523971][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.523971][ T10] ipv6_find_idev+0x102/0x170 [ 2119.523971][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.523971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.523971][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.523971][ T10] netlink_unicast+0x449/0x710 [ 2119.523971][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.523971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.523971][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.523971][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.523971][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.523971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.523971][ T10] [ 2119.526902][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2119.527452][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2119.527452][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.527452][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.527452][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.527452][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.527452][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.527452][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.527452][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.527452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.527452][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.527452][ T10] netlink_unicast+0x449/0x710 [ 2119.527452][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.527452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.527452][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.527452][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.527452][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.527452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.527452][ T10] [ 2119.530493][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2119.530493][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.530493][ T10] ipv6_find_idev+0x102/0x170 [ 2119.530493][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.530493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.530493][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.530493][ T10] netlink_unicast+0x449/0x710 [ 2119.530493][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.530493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.530493][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.530493][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.530493][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.530493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.530493][ T10] [ 2119.532902][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2119.532902][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.532902][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.532902][ T10] ipv6_find_idev+0x102/0x170 [ 2119.532902][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.532902][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.532902][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.532902][ T10] netlink_unicast+0x449/0x710 [ 2119.532902][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.532902][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.532902][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.532902][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.532902][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.532902][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.532902][ T10] [ 2119.535665][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2119.535938][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2119.535938][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.535938][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.535938][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.535938][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.535938][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.535938][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.535938][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.535938][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.535938][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.535938][ T10] netlink_unicast+0x449/0x710 [ 2119.535938][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.535938][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.535938][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.535938][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.535938][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.535938][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.535938][ T10] [ 2119.538155][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2119.538155][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.538155][ T10] ipv6_find_idev+0x102/0x170 [ 2119.538155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.538155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.538155][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.538155][ T10] netlink_unicast+0x449/0x710 [ 2119.538155][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.538155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.538155][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.538155][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.538155][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.538155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.538155][ T10] [ 2119.539890][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2119.539890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.539890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.539890][ T10] ipv6_find_idev+0x102/0x170 [ 2119.539890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.539890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.539890][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.539890][ T10] netlink_unicast+0x449/0x710 [ 2119.539890][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.539890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.539890][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.539890][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.539890][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.539890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.539890][ T10] [ 2119.541824][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2119.542162][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2119.542162][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.542162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.542162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.542162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.542162][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.542162][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.542162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.542162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.542162][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.542162][ T10] netlink_unicast+0x449/0x710 [ 2119.542162][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.542162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.542162][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.542162][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.542162][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.542162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.542162][ T10] [ 2119.544220][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2119.544220][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.544220][ T10] ipv6_find_idev+0x102/0x170 [ 2119.544220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.544220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.544220][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.544220][ T10] netlink_unicast+0x449/0x710 [ 2119.544220][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.544220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.544220][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.544220][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.544220][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.544220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.544220][ T10] [ 2119.545891][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2119.545891][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.545891][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.545891][ T10] ipv6_find_idev+0x102/0x170 [ 2119.545891][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.545891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.545891][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.545891][ T10] netlink_unicast+0x449/0x710 [ 2119.545891][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.545891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.545891][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.545891][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.545891][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.545891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.545891][ T10] [ 2119.547739][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2119.548049][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2119.548049][ T10] netdev_get_by_index+0x5e/0x80 [ 2119.548049][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2119.548049][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2119.548049][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2119.548049][ T10] ipv6_add_addr+0x411/0x2000 [ 2119.548049][ T10] inet6_addr_add+0x30e/0xa40 [ 2119.548049][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.548049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.548049][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.548049][ T10] netlink_unicast+0x449/0x710 [ 2119.548049][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.548049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.548049][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.548049][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.548049][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.548049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.548049][ T10] [ 2119.550179][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2119.550179][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2119.550179][ T10] ipv6_find_idev+0x102/0x170 [ 2119.550179][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.550179][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.550179][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.550179][ T10] netlink_unicast+0x449/0x710 [ 2119.550179][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.550179][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.550179][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.550179][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.550179][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.550179][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.550179][ T10] [ 2119.551899][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2119.551899][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2119.551899][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2119.551899][ T10] ipv6_find_idev+0x102/0x170 [ 2119.551899][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.551899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.551899][ T10] netlink_rcv_skb+0x130/0x360 [ 2119.551899][ T10] netlink_unicast+0x449/0x710 [ 2119.551899][ T10] netlink_sendmsg+0x723/0xbe0 [ 2119.551899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2119.551899][ T10] ___sys_sendmsg+0xee/0x170 [ 2119.551899][ T10] __sys_sendmsg+0xcd/0x170 [ 2119.551899][ T10] do_syscall_64+0xc6/0x1e0 [ 2119.551899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.551899][ T10] [ 2129.691667][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2129.692002][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2129.692002][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.692002][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.692002][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.692002][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.692002][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.692002][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.692002][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.692002][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.692002][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.692002][ T10] netlink_unicast+0x449/0x710 [ 2129.692002][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.692002][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.692002][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.692002][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.692002][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.692002][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.692002][ T10] [ 2129.694048][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2129.694048][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.694048][ T10] ipv6_find_idev+0x102/0x170 [ 2129.694048][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.694048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.694048][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.694048][ T10] netlink_unicast+0x449/0x710 [ 2129.694048][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.694048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.694048][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.694048][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.694048][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.694048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.694048][ T10] [ 2129.695596][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2129.695596][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.695596][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.695596][ T10] ipv6_find_idev+0x102/0x170 [ 2129.695596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.695596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.695596][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.695596][ T10] netlink_unicast+0x449/0x710 [ 2129.695596][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.695596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.695596][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.695596][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.695596][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.695596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.695596][ T10] [ 2129.697879][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2129.698477][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2129.698477][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.698477][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.698477][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.698477][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.698477][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.698477][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.698477][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.698477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.698477][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.698477][ T10] netlink_unicast+0x449/0x710 [ 2129.698477][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.698477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.698477][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.698477][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.698477][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.698477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.698477][ T10] [ 2129.700524][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2129.700524][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.700524][ T10] ipv6_find_idev+0x102/0x170 [ 2129.700524][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.700524][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.700524][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.700524][ T10] netlink_unicast+0x449/0x710 [ 2129.700524][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.700524][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.700524][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.700524][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.700524][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.700524][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.700524][ T10] [ 2129.702083][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2129.702083][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.702083][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.702083][ T10] ipv6_find_idev+0x102/0x170 [ 2129.702083][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.702083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.702083][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.702083][ T10] netlink_unicast+0x449/0x710 [ 2129.702083][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.702083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.702083][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.702083][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.702083][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.702083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.702083][ T10] [ 2129.703803][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2129.704076][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2129.704076][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.704076][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.704076][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.704076][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.704076][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.704076][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.704076][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.704076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.704076][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.704076][ T10] netlink_unicast+0x449/0x710 [ 2129.704076][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.704076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.704076][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.704076][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.704076][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.704076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.704076][ T10] [ 2129.706092][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2129.706092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.706092][ T10] ipv6_find_idev+0x102/0x170 [ 2129.706092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.706092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.706092][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.706092][ T10] netlink_unicast+0x449/0x710 [ 2129.706092][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.706092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.706092][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.706092][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.706092][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.706092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.706092][ T10] [ 2129.707656][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2129.707656][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.707656][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.707656][ T10] ipv6_find_idev+0x102/0x170 [ 2129.707656][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.707656][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.707656][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.707656][ T10] netlink_unicast+0x449/0x710 [ 2129.707656][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.707656][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.707656][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.707656][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.707656][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.707656][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.707656][ T10] [ 2129.709422][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2129.709755][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2129.709755][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.709755][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.709755][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.709755][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.709755][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.709755][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.709755][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.709755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.709755][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.709755][ T10] netlink_unicast+0x449/0x710 [ 2129.709755][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.709755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.709755][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.709755][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.709755][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.709755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.709755][ T10] [ 2129.711811][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2129.711811][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.711811][ T10] ipv6_find_idev+0x102/0x170 [ 2129.711811][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.711811][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.711811][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.711811][ T10] netlink_unicast+0x449/0x710 [ 2129.711811][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.711811][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.711811][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.711811][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.711811][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.711811][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.711811][ T10] [ 2129.713364][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2129.713364][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.713364][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.713364][ T10] ipv6_find_idev+0x102/0x170 [ 2129.713364][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.713364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.713364][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.713364][ T10] netlink_unicast+0x449/0x710 [ 2129.713364][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.713364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.713364][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.713364][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.713364][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.713364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.713364][ T10] [ 2129.715098][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2129.715372][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2129.715372][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.715372][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.715372][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.715372][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.715372][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.715372][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.715372][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.715372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.715372][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.715372][ T10] netlink_unicast+0x449/0x710 [ 2129.715372][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.715372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.715372][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.715372][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.715372][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.715372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.715372][ T10] [ 2129.717490][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2129.717490][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.717490][ T10] ipv6_find_idev+0x102/0x170 [ 2129.717490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.717490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.717490][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.717490][ T10] netlink_unicast+0x449/0x710 [ 2129.717490][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.717490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.717490][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.717490][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.717490][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.717490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.717490][ T10] [ 2129.719183][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2129.719183][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.719183][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.719183][ T10] ipv6_find_idev+0x102/0x170 [ 2129.719183][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.719183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.719183][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.719183][ T10] netlink_unicast+0x449/0x710 [ 2129.719183][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.719183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.719183][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.719183][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.719183][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.719183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.719183][ T10] [ 2129.721068][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2129.721374][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2129.721374][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.721374][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.721374][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.721374][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.721374][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.721374][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.721374][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.721374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.721374][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.721374][ T10] netlink_unicast+0x449/0x710 [ 2129.721374][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.721374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.721374][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.721374][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.721374][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.721374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.721374][ T10] [ 2129.723542][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2129.723542][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.723542][ T10] ipv6_find_idev+0x102/0x170 [ 2129.723542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.723542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.723542][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.723542][ T10] netlink_unicast+0x449/0x710 [ 2129.723542][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.723542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.723542][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.723542][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.723542][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.723542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.723542][ T10] [ 2129.725249][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2129.725249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.725249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.725249][ T10] ipv6_find_idev+0x102/0x170 [ 2129.725249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.725249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.725249][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.725249][ T10] netlink_unicast+0x449/0x710 [ 2129.725249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.725249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.725249][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.725249][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.725249][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.725249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.725249][ T10] [ 2129.727184][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2129.727502][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2129.727502][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.727502][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.727502][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.727502][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.727502][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.727502][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.727502][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.727502][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.727502][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.727502][ T10] netlink_unicast+0x449/0x710 [ 2129.727502][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.727502][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.727502][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.727502][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.727502][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.727502][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.727502][ T10] [ 2129.729691][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2129.729691][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.729691][ T10] ipv6_find_idev+0x102/0x170 [ 2129.729691][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.729691][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.729691][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.729691][ T10] netlink_unicast+0x449/0x710 [ 2129.729691][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.729691][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.729691][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.729691][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.729691][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.729691][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.729691][ T10] [ 2129.731484][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2129.731484][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.731484][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.731484][ T10] ipv6_find_idev+0x102/0x170 [ 2129.731484][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.731484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.731484][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.731484][ T10] netlink_unicast+0x449/0x710 [ 2129.731484][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.731484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.731484][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.731484][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.731484][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.731484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.731484][ T10] [ 2129.733552][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2129.733953][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2129.733953][ T10] netdev_get_by_index+0x5e/0x80 [ 2129.733953][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2129.733953][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2129.733953][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2129.733953][ T10] ipv6_add_addr+0x411/0x2000 [ 2129.733953][ T10] inet6_addr_add+0x30e/0xa40 [ 2129.733953][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.733953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.733953][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.733953][ T10] netlink_unicast+0x449/0x710 [ 2129.733953][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.733953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.733953][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.733953][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.733953][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.733953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.733953][ T10] [ 2129.736103][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2129.736103][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2129.736103][ T10] ipv6_find_idev+0x102/0x170 [ 2129.736103][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.736103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.736103][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.736103][ T10] netlink_unicast+0x449/0x710 [ 2129.736103][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.736103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.736103][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.736103][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.736103][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.736103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.736103][ T10] [ 2129.737653][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2129.737653][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2129.737653][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2129.737653][ T10] ipv6_find_idev+0x102/0x170 [ 2129.737653][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.737653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.737653][ T10] netlink_rcv_skb+0x130/0x360 [ 2129.737653][ T10] netlink_unicast+0x449/0x710 [ 2129.737653][ T10] netlink_sendmsg+0x723/0xbe0 [ 2129.737653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2129.737653][ T10] ___sys_sendmsg+0xee/0x170 [ 2129.737653][ T10] __sys_sendmsg+0xcd/0x170 [ 2129.737653][ T10] do_syscall_64+0xc6/0x1e0 [ 2129.737653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.737653][ T10] [ 2139.844823][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2139.845150][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2139.845150][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.845150][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.845150][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.845150][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.845150][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.845150][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.845150][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.845150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.845150][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.845150][ T10] netlink_unicast+0x449/0x710 [ 2139.845150][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.845150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.845150][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.845150][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.845150][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.845150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.845150][ T10] [ 2139.847149][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2139.847149][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.847149][ T10] ipv6_find_idev+0x102/0x170 [ 2139.847149][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.847149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.847149][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.847149][ T10] netlink_unicast+0x449/0x710 [ 2139.847149][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.847149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.847149][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.847149][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.847149][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.847149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.847149][ T10] [ 2139.848679][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2139.848679][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.848679][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.848679][ T10] ipv6_find_idev+0x102/0x170 [ 2139.848679][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.848679][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.848679][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.848679][ T10] netlink_unicast+0x449/0x710 [ 2139.848679][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.848679][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.848679][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.848679][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.848679][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.848679][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.848679][ T10] [ 2139.850365][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2139.850639][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2139.850639][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.850639][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.850639][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.850639][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.850639][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.850639][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.850639][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.850639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.850639][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.850639][ T10] netlink_unicast+0x449/0x710 [ 2139.850639][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.850639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.850639][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.850639][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.850639][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.850639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.850639][ T10] [ 2139.852627][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2139.852627][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.852627][ T10] ipv6_find_idev+0x102/0x170 [ 2139.852627][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.852627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.852627][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.852627][ T10] netlink_unicast+0x449/0x710 [ 2139.852627][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.852627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.852627][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.852627][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.852627][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.852627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.852627][ T10] [ 2139.854157][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2139.854157][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.854157][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.854157][ T10] ipv6_find_idev+0x102/0x170 [ 2139.854157][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.854157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.854157][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.854157][ T10] netlink_unicast+0x449/0x710 [ 2139.854157][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.854157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.854157][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.854157][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.854157][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.854157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.854157][ T10] [ 2139.855901][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2139.856229][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2139.856229][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.856229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.856229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.856229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.856229][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.856229][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.856229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.856229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.856229][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.856229][ T10] netlink_unicast+0x449/0x710 [ 2139.856229][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.856229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.856229][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.856229][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.856229][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.856229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.856229][ T10] [ 2139.858340][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2139.858340][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.858340][ T10] ipv6_find_idev+0x102/0x170 [ 2139.858340][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.858340][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.858340][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.858340][ T10] netlink_unicast+0x449/0x710 [ 2139.858340][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.858340][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.858340][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.858340][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.858340][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.858340][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.858340][ T10] [ 2139.860143][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2139.860143][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.860143][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.860143][ T10] ipv6_find_idev+0x102/0x170 [ 2139.860143][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.860143][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.860143][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.860143][ T10] netlink_unicast+0x449/0x710 [ 2139.860143][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.860143][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.860143][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.860143][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.860143][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.860143][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.860143][ T10] [ 2139.862018][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2139.862341][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2139.862341][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.862341][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.862341][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.862341][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.862341][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.862341][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.862341][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.862341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.862341][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.862341][ T10] netlink_unicast+0x449/0x710 [ 2139.862341][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.862341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.862341][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.862341][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.862341][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.862341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.862341][ T10] [ 2139.864509][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2139.864509][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.864509][ T10] ipv6_find_idev+0x102/0x170 [ 2139.864509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.864509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.864509][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.864509][ T10] netlink_unicast+0x449/0x710 [ 2139.864509][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.864509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.864509][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.864509][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.864509][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.864509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.864509][ T10] [ 2139.866154][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2139.866154][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.866154][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.866154][ T10] ipv6_find_idev+0x102/0x170 [ 2139.866154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.866154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.866154][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.866154][ T10] netlink_unicast+0x449/0x710 [ 2139.866154][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.866154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.866154][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.866154][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.866154][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.866154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.866154][ T10] [ 2139.868044][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2139.868303][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2139.868303][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.868303][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.868303][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.868303][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.868303][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.868303][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.868303][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.868303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.868303][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.868303][ T10] netlink_unicast+0x449/0x710 [ 2139.868303][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.868303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.868303][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.868303][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.868303][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.868303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.868303][ T10] [ 2139.870384][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2139.870384][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.870384][ T10] ipv6_find_idev+0x102/0x170 [ 2139.870384][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.870384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.870384][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.870384][ T10] netlink_unicast+0x449/0x710 [ 2139.870384][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.870384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.870384][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.870384][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.870384][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.870384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.870384][ T10] [ 2139.871907][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2139.871907][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.871907][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.871907][ T10] ipv6_find_idev+0x102/0x170 [ 2139.871907][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.871907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.871907][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.871907][ T10] netlink_unicast+0x449/0x710 [ 2139.871907][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.871907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.871907][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.871907][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.871907][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.871907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.871907][ T10] [ 2139.873671][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2139.873931][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2139.873931][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.873931][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.873931][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.873931][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.873931][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.873931][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.873931][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.873931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.873931][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.873931][ T10] netlink_unicast+0x449/0x710 [ 2139.873931][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.873931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.873931][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.873931][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.873931][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.873931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.873931][ T10] [ 2139.876111][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2139.876111][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.876111][ T10] ipv6_find_idev+0x102/0x170 [ 2139.876111][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.876111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.876111][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.876111][ T10] netlink_unicast+0x449/0x710 [ 2139.876111][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.876111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.876111][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.876111][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.876111][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.876111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.876111][ T10] [ 2139.877794][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2139.877794][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.877794][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.877794][ T10] ipv6_find_idev+0x102/0x170 [ 2139.877794][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.877794][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.877794][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.877794][ T10] netlink_unicast+0x449/0x710 [ 2139.877794][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.877794][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.877794][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.877794][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.877794][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.877794][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.877794][ T10] [ 2139.879603][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2139.879921][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2139.879921][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.879921][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.879921][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.879921][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.879921][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.879921][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.879921][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.879921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.879921][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.879921][ T10] netlink_unicast+0x449/0x710 [ 2139.879921][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.879921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.879921][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.879921][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.879921][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.879921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.879921][ T10] [ 2139.881968][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2139.881968][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.881968][ T10] ipv6_find_idev+0x102/0x170 [ 2139.881968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.881968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.881968][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.881968][ T10] netlink_unicast+0x449/0x710 [ 2139.881968][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.881968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.881968][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.881968][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.881968][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.881968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.881968][ T10] [ 2139.883719][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2139.883719][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.883719][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.883719][ T10] ipv6_find_idev+0x102/0x170 [ 2139.883719][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.883719][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.883719][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.883719][ T10] netlink_unicast+0x449/0x710 [ 2139.883719][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.883719][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.883719][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.883719][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.883719][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.883719][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.883719][ T10] [ 2139.885567][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2139.885884][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2139.885884][ T10] netdev_get_by_index+0x5e/0x80 [ 2139.885884][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2139.885884][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2139.885884][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2139.885884][ T10] ipv6_add_addr+0x411/0x2000 [ 2139.885884][ T10] inet6_addr_add+0x30e/0xa40 [ 2139.885884][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2139.885884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.885884][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.885884][ T10] netlink_unicast+0x449/0x710 [ 2139.885884][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.885884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.885884][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.885884][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.885884][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.885884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.885884][ T10] [ 2139.887881][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2139.887881][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2139.887881][ T10] ipv6_find_idev+0x102/0x170 [ 2139.887881][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.887881][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.887881][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.887881][ T10] netlink_unicast+0x449/0x710 [ 2139.887881][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.887881][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.887881][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.887881][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.887881][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.887881][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.887881][ T10] [ 2139.889403][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2139.889403][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2139.889403][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2139.889403][ T10] ipv6_find_idev+0x102/0x170 [ 2139.889403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2139.889403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2139.889403][ T10] netlink_rcv_skb+0x130/0x360 [ 2139.889403][ T10] netlink_unicast+0x449/0x710 [ 2139.889403][ T10] netlink_sendmsg+0x723/0xbe0 [ 2139.889403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2139.889403][ T10] ___sys_sendmsg+0xee/0x170 [ 2139.889403][ T10] __sys_sendmsg+0xcd/0x170 [ 2139.889403][ T10] do_syscall_64+0xc6/0x1e0 [ 2139.889403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2139.889403][ T10] [ 2142.991689][ T9575] ip (9575) used greatest stack depth: 23584 bytes left [ 2150.027659][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2150.027982][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2150.027982][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.027982][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.027982][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.027982][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.027982][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.027982][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.027982][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.027982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.027982][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.027982][ T10] netlink_unicast+0x449/0x710 [ 2150.027982][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.027982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.027982][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.027982][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.027982][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.027982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.027982][ T10] [ 2150.030007][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2150.030007][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.030007][ T10] ipv6_find_idev+0x102/0x170 [ 2150.030007][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.030007][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.030007][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.030007][ T10] netlink_unicast+0x449/0x710 [ 2150.030007][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.030007][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.030007][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.030007][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.030007][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.030007][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.030007][ T10] [ 2150.031546][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2150.031546][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.031546][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.031546][ T10] ipv6_find_idev+0x102/0x170 [ 2150.031546][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.031546][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.031546][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.031546][ T10] netlink_unicast+0x449/0x710 [ 2150.031546][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.031546][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.031546][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.031546][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.031546][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.031546][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.031546][ T10] [ 2150.033233][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2150.033500][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2150.033500][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.033500][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.033500][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.033500][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.033500][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.033500][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.033500][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.033500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.033500][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.033500][ T10] netlink_unicast+0x449/0x710 [ 2150.033500][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.033500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.033500][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.033500][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.033500][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.033500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.033500][ T10] [ 2150.035476][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2150.035476][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.035476][ T10] ipv6_find_idev+0x102/0x170 [ 2150.035476][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.035476][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.035476][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.035476][ T10] netlink_unicast+0x449/0x710 [ 2150.035476][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.035476][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.035476][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.035476][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.035476][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.035476][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.035476][ T10] [ 2150.036997][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2150.036997][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.036997][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.036997][ T10] ipv6_find_idev+0x102/0x170 [ 2150.036997][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.036997][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.036997][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.036997][ T10] netlink_unicast+0x449/0x710 [ 2150.036997][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.036997][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.036997][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.036997][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.036997][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.036997][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.036997][ T10] [ 2150.038684][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2150.038956][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2150.038956][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.038956][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.038956][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.038956][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.038956][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.038956][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.038956][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.038956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.038956][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.038956][ T10] netlink_unicast+0x449/0x710 [ 2150.038956][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.038956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.038956][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.038956][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.038956][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.038956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.038956][ T10] [ 2150.040955][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2150.040955][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.040955][ T10] ipv6_find_idev+0x102/0x170 [ 2150.040955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.040955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.040955][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.040955][ T10] netlink_unicast+0x449/0x710 [ 2150.040955][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.040955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.040955][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.040955][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.040955][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.040955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.040955][ T10] [ 2150.042476][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2150.042476][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.042476][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.042476][ T10] ipv6_find_idev+0x102/0x170 [ 2150.042476][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.042476][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.042476][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.042476][ T10] netlink_unicast+0x449/0x710 [ 2150.042476][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.042476][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.042476][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.042476][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.042476][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.042476][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.042476][ T10] [ 2150.044145][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2150.044412][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2150.044412][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.044412][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.044412][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.044412][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.044412][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.044412][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.044412][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.044412][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.044412][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.044412][ T10] netlink_unicast+0x449/0x710 [ 2150.044412][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.044412][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.044412][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.044412][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.044412][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.044412][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.044412][ T10] [ 2150.046390][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2150.046390][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.046390][ T10] ipv6_find_idev+0x102/0x170 [ 2150.046390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.046390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.046390][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.046390][ T10] netlink_unicast+0x449/0x710 [ 2150.046390][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.046390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.046390][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.046390][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.046390][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.046390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.046390][ T10] [ 2150.048091][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2150.048091][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.048091][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.048091][ T10] ipv6_find_idev+0x102/0x170 [ 2150.048091][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.048091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.048091][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.048091][ T10] netlink_unicast+0x449/0x710 [ 2150.048091][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.048091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.048091][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.048091][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.048091][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.048091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.048091][ T10] [ 2150.049880][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2150.050144][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2150.050144][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.050144][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.050144][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.050144][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.050144][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.050144][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.050144][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.050144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.050144][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.050144][ T10] netlink_unicast+0x449/0x710 [ 2150.050144][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.050144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.050144][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.050144][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.050144][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.050144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.050144][ T10] [ 2150.052407][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2150.052407][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.052407][ T10] ipv6_find_idev+0x102/0x170 [ 2150.052407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.052407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.052407][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.052407][ T10] netlink_unicast+0x449/0x710 [ 2150.052407][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.052407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.052407][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.052407][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.052407][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.052407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.052407][ T10] [ 2150.054042][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2150.054042][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.054042][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.054042][ T10] ipv6_find_idev+0x102/0x170 [ 2150.054042][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.054042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.054042][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.054042][ T10] netlink_unicast+0x449/0x710 [ 2150.054042][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.054042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.054042][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.054042][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.054042][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.054042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.054042][ T10] [ 2150.055887][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2150.056224][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2150.056224][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.056224][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.056224][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.056224][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.056224][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.056224][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.056224][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.056224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.056224][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.056224][ T10] netlink_unicast+0x449/0x710 [ 2150.056224][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.056224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.056224][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.056224][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.056224][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.056224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.056224][ T10] [ 2150.058304][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2150.058304][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.058304][ T10] ipv6_find_idev+0x102/0x170 [ 2150.058304][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.058304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.058304][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.058304][ T10] netlink_unicast+0x449/0x710 [ 2150.058304][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.058304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.058304][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.058304][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.058304][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.058304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.058304][ T10] [ 2150.060075][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2150.060075][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.060075][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.060075][ T10] ipv6_find_idev+0x102/0x170 [ 2150.060075][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.060075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.060075][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.060075][ T10] netlink_unicast+0x449/0x710 [ 2150.060075][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.060075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.060075][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.060075][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.060075][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.060075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.060075][ T10] [ 2150.062331][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2150.062599][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2150.062599][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.062599][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.062599][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.062599][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.062599][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.062599][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.062599][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.062599][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.062599][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.062599][ T10] netlink_unicast+0x449/0x710 [ 2150.062599][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.062599][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.062599][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.062599][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.062599][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.062599][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.062599][ T10] [ 2150.064565][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2150.064565][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.064565][ T10] ipv6_find_idev+0x102/0x170 [ 2150.064565][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.064565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.064565][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.064565][ T10] netlink_unicast+0x449/0x710 [ 2150.064565][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.064565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.064565][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.064565][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.064565][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.064565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.064565][ T10] [ 2150.066144][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2150.066144][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.066144][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.066144][ T10] ipv6_find_idev+0x102/0x170 [ 2150.066144][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.066144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.066144][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.066144][ T10] netlink_unicast+0x449/0x710 [ 2150.066144][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.066144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.066144][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.066144][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.066144][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.066144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.066144][ T10] [ 2150.068123][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2150.068392][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2150.068392][ T10] netdev_get_by_index+0x5e/0x80 [ 2150.068392][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2150.068392][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2150.068392][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2150.068392][ T10] ipv6_add_addr+0x411/0x2000 [ 2150.068392][ T10] inet6_addr_add+0x30e/0xa40 [ 2150.068392][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.068392][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.068392][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.068392][ T10] netlink_unicast+0x449/0x710 [ 2150.068392][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.068392][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.068392][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.068392][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.068392][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.068392][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.068392][ T10] [ 2150.070435][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2150.070435][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2150.070435][ T10] ipv6_find_idev+0x102/0x170 [ 2150.070435][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.070435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.070435][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.070435][ T10] netlink_unicast+0x449/0x710 [ 2150.070435][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.070435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.070435][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.070435][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.070435][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.070435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.070435][ T10] [ 2150.072069][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2150.072069][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2150.072069][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2150.072069][ T10] ipv6_find_idev+0x102/0x170 [ 2150.072069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.072069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.072069][ T10] netlink_rcv_skb+0x130/0x360 [ 2150.072069][ T10] netlink_unicast+0x449/0x710 [ 2150.072069][ T10] netlink_sendmsg+0x723/0xbe0 [ 2150.072069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2150.072069][ T10] ___sys_sendmsg+0xee/0x170 [ 2150.072069][ T10] __sys_sendmsg+0xcd/0x170 [ 2150.072069][ T10] do_syscall_64+0xc6/0x1e0 [ 2150.072069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.072069][ T10] [ 2160.315751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2160.316186][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2160.316186][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.316186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.316186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.316186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.316186][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.316186][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.316186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.316186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.316186][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.316186][ T10] netlink_unicast+0x449/0x710 [ 2160.316186][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.316186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.316186][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.316186][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.316186][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.316186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.316186][ T10] [ 2160.318230][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2160.318230][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.318230][ T10] ipv6_find_idev+0x102/0x170 [ 2160.318230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.318230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.318230][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.318230][ T10] netlink_unicast+0x449/0x710 [ 2160.318230][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.318230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.318230][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.318230][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.318230][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.318230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.318230][ T10] [ 2160.319764][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2160.319764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.319764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.319764][ T10] ipv6_find_idev+0x102/0x170 [ 2160.319764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.319764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.319764][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.319764][ T10] netlink_unicast+0x449/0x710 [ 2160.319764][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.319764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.319764][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.319764][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.319764][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.319764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.319764][ T10] [ 2160.321428][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2160.321718][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2160.321718][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.321718][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.321718][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.321718][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.321718][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.321718][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.321718][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.321718][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.321718][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.321718][ T10] netlink_unicast+0x449/0x710 [ 2160.321718][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.321718][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.321718][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.321718][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.321718][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.321718][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.321718][ T10] [ 2160.323688][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2160.323688][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.323688][ T10] ipv6_find_idev+0x102/0x170 [ 2160.323688][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.323688][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.323688][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.323688][ T10] netlink_unicast+0x449/0x710 [ 2160.323688][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.323688][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.323688][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.323688][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.323688][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.323688][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.323688][ T10] [ 2160.325208][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2160.325208][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.325208][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.325208][ T10] ipv6_find_idev+0x102/0x170 [ 2160.325208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.325208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.325208][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.325208][ T10] netlink_unicast+0x449/0x710 [ 2160.325208][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.325208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.325208][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.325208][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.325208][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.325208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.325208][ T10] [ 2160.326865][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2160.327125][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2160.327125][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.327125][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.327125][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.327125][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.327125][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.327125][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.327125][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.327125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.327125][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.327125][ T10] netlink_unicast+0x449/0x710 [ 2160.327125][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.327125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.327125][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.327125][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.327125][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.327125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.327125][ T10] [ 2160.329090][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2160.329090][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.329090][ T10] ipv6_find_idev+0x102/0x170 [ 2160.329090][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.329090][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.329090][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.329090][ T10] netlink_unicast+0x449/0x710 [ 2160.329090][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.329090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.329090][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.329090][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.329090][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.329090][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.329090][ T10] [ 2160.330684][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2160.330684][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.330684][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.330684][ T10] ipv6_find_idev+0x102/0x170 [ 2160.330684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.330684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.330684][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.330684][ T10] netlink_unicast+0x449/0x710 [ 2160.330684][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.330684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.330684][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.330684][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.330684][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.330684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.330684][ T10] [ 2160.332750][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2160.333013][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2160.333013][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.333013][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.333013][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.333013][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.333013][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.333013][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.333013][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.333013][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.333013][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.333013][ T10] netlink_unicast+0x449/0x710 [ 2160.333013][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.333013][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.333013][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.333013][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.333013][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.333013][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.333013][ T10] [ 2160.334977][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2160.334977][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.334977][ T10] ipv6_find_idev+0x102/0x170 [ 2160.334977][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.334977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.334977][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.334977][ T10] netlink_unicast+0x449/0x710 [ 2160.334977][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.334977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.334977][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.334977][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.334977][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.334977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.334977][ T10] [ 2160.336491][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2160.336491][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.336491][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.336491][ T10] ipv6_find_idev+0x102/0x170 [ 2160.336491][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.336491][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.336491][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.336491][ T10] netlink_unicast+0x449/0x710 [ 2160.336491][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.336491][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.336491][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.336491][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.336491][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.336491][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.336491][ T10] [ 2160.338198][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2160.338463][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2160.338463][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.338463][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.338463][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.338463][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.338463][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.338463][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.338463][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.338463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.338463][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.338463][ T10] netlink_unicast+0x449/0x710 [ 2160.338463][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.338463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.338463][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.338463][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.338463][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.338463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.338463][ T10] [ 2160.340514][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2160.340514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.340514][ T10] ipv6_find_idev+0x102/0x170 [ 2160.340514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.340514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.340514][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.340514][ T10] netlink_unicast+0x449/0x710 [ 2160.340514][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.340514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.340514][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.340514][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.340514][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.340514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.340514][ T10] [ 2160.342036][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2160.342036][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.342036][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.342036][ T10] ipv6_find_idev+0x102/0x170 [ 2160.342036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.342036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.342036][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.342036][ T10] netlink_unicast+0x449/0x710 [ 2160.342036][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.342036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.342036][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.342036][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.342036][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.342036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.342036][ T10] [ 2160.343719][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2160.343983][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2160.343983][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.343983][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.343983][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.343983][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.343983][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.343983][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.343983][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.343983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.343983][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.343983][ T10] netlink_unicast+0x449/0x710 [ 2160.343983][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.343983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.343983][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.343983][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.343983][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.343983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.343983][ T10] [ 2160.346065][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2160.346065][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.346065][ T10] ipv6_find_idev+0x102/0x170 [ 2160.346065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.346065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.346065][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.346065][ T10] netlink_unicast+0x449/0x710 [ 2160.346065][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.346065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.346065][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.346065][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.346065][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.346065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.346065][ T10] [ 2160.347823][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2160.347823][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.347823][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.347823][ T10] ipv6_find_idev+0x102/0x170 [ 2160.347823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.347823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.347823][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.347823][ T10] netlink_unicast+0x449/0x710 [ 2160.347823][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.347823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.347823][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.347823][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.347823][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.347823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.347823][ T10] [ 2160.349635][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2160.349968][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2160.349968][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.349968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.349968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.349968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.349968][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.349968][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.349968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.349968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.349968][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.349968][ T10] netlink_unicast+0x449/0x710 [ 2160.349968][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.349968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.349968][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.349968][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.349968][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.349968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.349968][ T10] [ 2160.352106][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2160.352106][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.352106][ T10] ipv6_find_idev+0x102/0x170 [ 2160.352106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.352106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.352106][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.352106][ T10] netlink_unicast+0x449/0x710 [ 2160.352106][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.352106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.352106][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.352106][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.352106][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.352106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.352106][ T10] [ 2160.353811][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2160.353811][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.353811][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.353811][ T10] ipv6_find_idev+0x102/0x170 [ 2160.353811][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.353811][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.353811][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.353811][ T10] netlink_unicast+0x449/0x710 [ 2160.353811][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.353811][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.353811][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.353811][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.353811][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.353811][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.353811][ T10] [ 2160.355749][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2160.356010][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2160.356010][ T10] netdev_get_by_index+0x5e/0x80 [ 2160.356010][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2160.356010][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2160.356010][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2160.356010][ T10] ipv6_add_addr+0x411/0x2000 [ 2160.356010][ T10] inet6_addr_add+0x30e/0xa40 [ 2160.356010][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.356010][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.356010][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.356010][ T10] netlink_unicast+0x449/0x710 [ 2160.356010][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.356010][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.356010][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.356010][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.356010][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.356010][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.356010][ T10] [ 2160.358225][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2160.358225][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2160.358225][ T10] ipv6_find_idev+0x102/0x170 [ 2160.358225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.358225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.358225][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.358225][ T10] netlink_unicast+0x449/0x710 [ 2160.358225][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.358225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.358225][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.358225][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.358225][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.358225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.358225][ T10] [ 2160.359925][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2160.359925][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2160.359925][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2160.359925][ T10] ipv6_find_idev+0x102/0x170 [ 2160.359925][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.359925][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.359925][ T10] netlink_rcv_skb+0x130/0x360 [ 2160.359925][ T10] netlink_unicast+0x449/0x710 [ 2160.359925][ T10] netlink_sendmsg+0x723/0xbe0 [ 2160.359925][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2160.359925][ T10] ___sys_sendmsg+0xee/0x170 [ 2160.359925][ T10] __sys_sendmsg+0xcd/0x170 [ 2160.359925][ T10] do_syscall_64+0xc6/0x1e0 [ 2160.359925][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.359925][ T10] [ 2170.451755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2170.452190][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2170.452190][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.452190][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.452190][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.452190][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.452190][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.452190][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.452190][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.452190][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.452190][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.452190][ T10] netlink_unicast+0x449/0x710 [ 2170.452190][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.452190][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.452190][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.452190][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.452190][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.452190][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.452190][ T10] [ 2170.454185][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2170.454185][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.454185][ T10] ipv6_find_idev+0x102/0x170 [ 2170.454185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.454185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.454185][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.454185][ T10] netlink_unicast+0x449/0x710 [ 2170.454185][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.454185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.454185][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.454185][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.454185][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.454185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.454185][ T10] [ 2170.455707][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2170.455707][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.455707][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.455707][ T10] ipv6_find_idev+0x102/0x170 [ 2170.455707][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.455707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.455707][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.455707][ T10] netlink_unicast+0x449/0x710 [ 2170.455707][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.455707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.455707][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.455707][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.455707][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.455707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.455707][ T10] [ 2170.457384][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2170.457653][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2170.457653][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.457653][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.457653][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.457653][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.457653][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.457653][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.457653][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.457653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.457653][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.457653][ T10] netlink_unicast+0x449/0x710 [ 2170.457653][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.457653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.457653][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.457653][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.457653][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.457653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.457653][ T10] [ 2170.459645][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2170.459645][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.459645][ T10] ipv6_find_idev+0x102/0x170 [ 2170.459645][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.459645][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.459645][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.459645][ T10] netlink_unicast+0x449/0x710 [ 2170.459645][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.459645][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.459645][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.459645][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.459645][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.459645][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.459645][ T10] [ 2170.461192][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2170.461192][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.461192][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.461192][ T10] ipv6_find_idev+0x102/0x170 [ 2170.461192][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.461192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.461192][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.461192][ T10] netlink_unicast+0x449/0x710 [ 2170.461192][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.461192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.461192][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.461192][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.461192][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.461192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.461192][ T10] [ 2170.462847][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2170.463112][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2170.463112][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.463112][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.463112][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.463112][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.463112][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.463112][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.463112][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.463112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.463112][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.463112][ T10] netlink_unicast+0x449/0x710 [ 2170.463112][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.463112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.463112][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.463112][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.463112][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.463112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.463112][ T10] [ 2170.465084][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2170.465084][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.465084][ T10] ipv6_find_idev+0x102/0x170 [ 2170.465084][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.465084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.465084][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.465084][ T10] netlink_unicast+0x449/0x710 [ 2170.465084][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.465084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.465084][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.465084][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.465084][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.465084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.465084][ T10] [ 2170.466602][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2170.466602][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.466602][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.466602][ T10] ipv6_find_idev+0x102/0x170 [ 2170.466602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.466602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.466602][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.466602][ T10] netlink_unicast+0x449/0x710 [ 2170.466602][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.466602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.466602][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.466602][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.466602][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.466602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.466602][ T10] [ 2170.468253][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2170.468510][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2170.468510][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.468510][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.468510][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.468510][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.468510][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.468510][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.468510][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.468510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.468510][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.468510][ T10] netlink_unicast+0x449/0x710 [ 2170.468510][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.468510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.468510][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.468510][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.468510][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.468510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.468510][ T10] [ 2170.470481][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2170.470481][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.470481][ T10] ipv6_find_idev+0x102/0x170 [ 2170.470481][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.470481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.470481][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.470481][ T10] netlink_unicast+0x449/0x710 [ 2170.470481][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.470481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.470481][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.470481][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.470481][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.470481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.470481][ T10] [ 2170.471992][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2170.471992][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.471992][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.471992][ T10] ipv6_find_idev+0x102/0x170 [ 2170.471992][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.471992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.471992][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.471992][ T10] netlink_unicast+0x449/0x710 [ 2170.471992][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.471992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.471992][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.471992][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.471992][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.471992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.471992][ T10] [ 2170.474035][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2170.474297][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2170.474297][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.474297][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.474297][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.474297][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.474297][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.474297][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.474297][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.474297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.474297][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.474297][ T10] netlink_unicast+0x449/0x710 [ 2170.474297][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.474297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.474297][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.474297][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.474297][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.474297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.474297][ T10] [ 2170.476248][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2170.476248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.476248][ T10] ipv6_find_idev+0x102/0x170 [ 2170.476248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.476248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.476248][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.476248][ T10] netlink_unicast+0x449/0x710 [ 2170.476248][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.476248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.476248][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.476248][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.476248][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.476248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.476248][ T10] [ 2170.477758][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2170.477758][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.477758][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.477758][ T10] ipv6_find_idev+0x102/0x170 [ 2170.477758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.477758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.477758][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.477758][ T10] netlink_unicast+0x449/0x710 [ 2170.477758][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.477758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.477758][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.477758][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.477758][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.477758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.477758][ T10] [ 2170.479446][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2170.479790][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2170.479790][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.479790][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.479790][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.479790][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.479790][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.479790][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.479790][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.479790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.479790][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.479790][ T10] netlink_unicast+0x449/0x710 [ 2170.479790][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.479790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.479790][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.479790][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.479790][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.479790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.479790][ T10] [ 2170.481873][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2170.481873][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.481873][ T10] ipv6_find_idev+0x102/0x170 [ 2170.481873][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.481873][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.481873][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.481873][ T10] netlink_unicast+0x449/0x710 [ 2170.481873][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.481873][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.481873][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.481873][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.481873][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.481873][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.481873][ T10] [ 2170.483526][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2170.483526][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.483526][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.483526][ T10] ipv6_find_idev+0x102/0x170 [ 2170.483526][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.483526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.483526][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.483526][ T10] netlink_unicast+0x449/0x710 [ 2170.483526][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.483526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.483526][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.483526][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.483526][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.483526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.483526][ T10] [ 2170.485392][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2170.485661][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2170.485661][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.485661][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.485661][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.485661][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.485661][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.485661][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.485661][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.485661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.485661][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.485661][ T10] netlink_unicast+0x449/0x710 [ 2170.485661][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.485661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.485661][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.485661][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.485661][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.485661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.485661][ T10] [ 2170.487859][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2170.487859][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.487859][ T10] ipv6_find_idev+0x102/0x170 [ 2170.487859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.487859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.487859][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.487859][ T10] netlink_unicast+0x449/0x710 [ 2170.487859][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.487859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.487859][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.487859][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.487859][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.487859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.487859][ T10] [ 2170.489558][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2170.489558][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.489558][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.489558][ T10] ipv6_find_idev+0x102/0x170 [ 2170.489558][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.489558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.489558][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.489558][ T10] netlink_unicast+0x449/0x710 [ 2170.489558][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.489558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.489558][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.489558][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.489558][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.489558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.489558][ T10] [ 2170.491450][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2170.491768][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2170.491768][ T10] netdev_get_by_index+0x5e/0x80 [ 2170.491768][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2170.491768][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2170.491768][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2170.491768][ T10] ipv6_add_addr+0x411/0x2000 [ 2170.491768][ T10] inet6_addr_add+0x30e/0xa40 [ 2170.491768][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.491768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.491768][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.491768][ T10] netlink_unicast+0x449/0x710 [ 2170.491768][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.491768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.491768][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.491768][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.491768][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.491768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.491768][ T10] [ 2170.493968][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2170.493968][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2170.493968][ T10] ipv6_find_idev+0x102/0x170 [ 2170.493968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.493968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.493968][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.493968][ T10] netlink_unicast+0x449/0x710 [ 2170.493968][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.493968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.493968][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.493968][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.493968][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.493968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.493968][ T10] [ 2170.495606][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2170.495606][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2170.495606][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2170.495606][ T10] ipv6_find_idev+0x102/0x170 [ 2170.495606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.495606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.495606][ T10] netlink_rcv_skb+0x130/0x360 [ 2170.495606][ T10] netlink_unicast+0x449/0x710 [ 2170.495606][ T10] netlink_sendmsg+0x723/0xbe0 [ 2170.495606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2170.495606][ T10] ___sys_sendmsg+0xee/0x170 [ 2170.495606][ T10] __sys_sendmsg+0xcd/0x170 [ 2170.495606][ T10] do_syscall_64+0xc6/0x1e0 [ 2170.495606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.495606][ T10] [ 2180.547663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2180.548097][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2180.548097][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.548097][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.548097][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.548097][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.548097][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.548097][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.548097][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.548097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.548097][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.548097][ T10] netlink_unicast+0x449/0x710 [ 2180.548097][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.548097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.548097][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.548097][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.548097][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.548097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.548097][ T10] [ 2180.550124][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2180.550124][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.550124][ T10] ipv6_find_idev+0x102/0x170 [ 2180.550124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.550124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.550124][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.550124][ T10] netlink_unicast+0x449/0x710 [ 2180.550124][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.550124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.550124][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.550124][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.550124][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.550124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.550124][ T10] [ 2180.551684][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2180.551684][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.551684][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.551684][ T10] ipv6_find_idev+0x102/0x170 [ 2180.551684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.551684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.551684][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.551684][ T10] netlink_unicast+0x449/0x710 [ 2180.551684][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.551684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.551684][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.551684][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.551684][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.551684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.551684][ T10] [ 2180.553355][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2180.553620][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2180.553620][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.553620][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.553620][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.553620][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.553620][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.553620][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.553620][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.553620][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.553620][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.553620][ T10] netlink_unicast+0x449/0x710 [ 2180.553620][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.553620][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.553620][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.553620][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.553620][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.553620][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.553620][ T10] [ 2180.555598][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2180.555598][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.555598][ T10] ipv6_find_idev+0x102/0x170 [ 2180.555598][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.555598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.555598][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.555598][ T10] netlink_unicast+0x449/0x710 [ 2180.555598][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.555598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.555598][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.555598][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.555598][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.555598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.555598][ T10] [ 2180.557125][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2180.557125][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.557125][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.557125][ T10] ipv6_find_idev+0x102/0x170 [ 2180.557125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.557125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.557125][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.557125][ T10] netlink_unicast+0x449/0x710 [ 2180.557125][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.557125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.557125][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.557125][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.557125][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.557125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.557125][ T10] [ 2180.558844][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2180.559106][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2180.559106][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.559106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.559106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.559106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.559106][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.559106][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.559106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.559106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.559106][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.559106][ T10] netlink_unicast+0x449/0x710 [ 2180.559106][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.559106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.559106][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.559106][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.559106][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.559106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.559106][ T10] [ 2180.561355][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2180.561355][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.561355][ T10] ipv6_find_idev+0x102/0x170 [ 2180.561355][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.561355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.561355][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.561355][ T10] netlink_unicast+0x449/0x710 [ 2180.561355][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.561355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.561355][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.561355][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.561355][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.561355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.561355][ T10] [ 2180.563136][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2180.563136][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.563136][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.563136][ T10] ipv6_find_idev+0x102/0x170 [ 2180.563136][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.563136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.563136][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.563136][ T10] netlink_unicast+0x449/0x710 [ 2180.563136][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.563136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.563136][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.563136][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.563136][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.563136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.563136][ T10] [ 2180.565081][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2180.565348][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2180.565348][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.565348][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.565348][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.565348][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.565348][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.565348][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.565348][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.565348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.565348][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.565348][ T10] netlink_unicast+0x449/0x710 [ 2180.565348][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.565348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.565348][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.565348][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.565348][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.565348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.565348][ T10] [ 2180.567481][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2180.567481][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.567481][ T10] ipv6_find_idev+0x102/0x170 [ 2180.567481][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.567481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.567481][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.567481][ T10] netlink_unicast+0x449/0x710 [ 2180.567481][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.567481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.567481][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.567481][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.567481][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.567481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.567481][ T10] [ 2180.569074][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2180.569074][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.569074][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.569074][ T10] ipv6_find_idev+0x102/0x170 [ 2180.569074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.569074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.569074][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.569074][ T10] netlink_unicast+0x449/0x710 [ 2180.569074][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.569074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.569074][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.569074][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.569074][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.569074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.569074][ T10] [ 2180.570987][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2180.571252][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2180.571252][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.571252][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.571252][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.571252][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.571252][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.571252][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.571252][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.571252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.571252][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.571252][ T10] netlink_unicast+0x449/0x710 [ 2180.571252][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.571252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.571252][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.571252][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.571252][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.571252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.571252][ T10] [ 2180.573362][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2180.573362][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.573362][ T10] ipv6_find_idev+0x102/0x170 [ 2180.573362][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.573362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.573362][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.573362][ T10] netlink_unicast+0x449/0x710 [ 2180.573362][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.573362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.573362][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.573362][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.573362][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.573362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.573362][ T10] [ 2180.575014][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2180.575014][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.575014][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.575014][ T10] ipv6_find_idev+0x102/0x170 [ 2180.575014][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.575014][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.575014][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.575014][ T10] netlink_unicast+0x449/0x710 [ 2180.575014][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.575014][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.575014][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.575014][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.575014][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.575014][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.575014][ T10] [ 2180.576862][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2180.577216][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2180.577216][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.577216][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.577216][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.577216][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.577216][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.577216][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.577216][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.577216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.577216][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.577216][ T10] netlink_unicast+0x449/0x710 [ 2180.577216][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.577216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.577216][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.577216][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.577216][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.577216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.577216][ T10] [ 2180.579564][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2180.579564][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.579564][ T10] ipv6_find_idev+0x102/0x170 [ 2180.579564][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.579564][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.579564][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.579564][ T10] netlink_unicast+0x449/0x710 [ 2180.579564][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.579564][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.579564][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.579564][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.579564][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.579564][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.579564][ T10] [ 2180.581315][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2180.581315][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.581315][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.581315][ T10] ipv6_find_idev+0x102/0x170 [ 2180.581315][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.581315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.581315][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.581315][ T10] netlink_unicast+0x449/0x710 [ 2180.581315][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.581315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.581315][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.581315][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.581315][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.581315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.581315][ T10] [ 2180.583251][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2180.583647][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2180.583647][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.583647][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.583647][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.583647][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.583647][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.583647][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.583647][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.583647][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.583647][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.583647][ T10] netlink_unicast+0x449/0x710 [ 2180.583647][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.583647][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.583647][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.583647][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.583647][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.583647][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.583647][ T10] [ 2180.585855][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2180.585855][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.585855][ T10] ipv6_find_idev+0x102/0x170 [ 2180.585855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.585855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.585855][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.585855][ T10] netlink_unicast+0x449/0x710 [ 2180.585855][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.585855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.585855][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.585855][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.585855][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.585855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.585855][ T10] [ 2180.587372][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2180.587372][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.587372][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.587372][ T10] ipv6_find_idev+0x102/0x170 [ 2180.587372][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.587372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.587372][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.587372][ T10] netlink_unicast+0x449/0x710 [ 2180.587372][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.587372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.587372][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.587372][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.587372][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.587372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.587372][ T10] [ 2180.589143][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2180.589404][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2180.589404][ T10] netdev_get_by_index+0x5e/0x80 [ 2180.589404][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2180.589404][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2180.589404][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2180.589404][ T10] ipv6_add_addr+0x411/0x2000 [ 2180.589404][ T10] inet6_addr_add+0x30e/0xa40 [ 2180.589404][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.589404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.589404][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.589404][ T10] netlink_unicast+0x449/0x710 [ 2180.589404][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.589404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.589404][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.589404][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.589404][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.589404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.589404][ T10] [ 2180.591625][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2180.591625][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2180.591625][ T10] ipv6_find_idev+0x102/0x170 [ 2180.591625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.591625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.591625][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.591625][ T10] netlink_unicast+0x449/0x710 [ 2180.591625][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.591625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.591625][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.591625][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.591625][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.591625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.591625][ T10] [ 2180.593312][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2180.593312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2180.593312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2180.593312][ T10] ipv6_find_idev+0x102/0x170 [ 2180.593312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.593312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.593312][ T10] netlink_rcv_skb+0x130/0x360 [ 2180.593312][ T10] netlink_unicast+0x449/0x710 [ 2180.593312][ T10] netlink_sendmsg+0x723/0xbe0 [ 2180.593312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2180.593312][ T10] ___sys_sendmsg+0xee/0x170 [ 2180.593312][ T10] __sys_sendmsg+0xcd/0x170 [ 2180.593312][ T10] do_syscall_64+0xc6/0x1e0 [ 2180.593312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.593312][ T10] [ 2190.740791][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2190.741186][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2190.741186][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.741186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.741186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.741186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.741186][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.741186][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.741186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.741186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.741186][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.741186][ T10] netlink_unicast+0x449/0x710 [ 2190.741186][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.741186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.741186][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.741186][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.741186][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.741186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.741186][ T10] [ 2190.743212][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2190.743212][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.743212][ T10] ipv6_find_idev+0x102/0x170 [ 2190.743212][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.743212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.743212][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.743212][ T10] netlink_unicast+0x449/0x710 [ 2190.743212][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.743212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.743212][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.743212][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.743212][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.743212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.743212][ T10] [ 2190.744777][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2190.744777][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.744777][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.744777][ T10] ipv6_find_idev+0x102/0x170 [ 2190.744777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.744777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.744777][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.744777][ T10] netlink_unicast+0x449/0x710 [ 2190.744777][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.744777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.744777][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.744777][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.744777][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.744777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.744777][ T10] [ 2190.746451][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2190.746727][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2190.746727][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.746727][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.746727][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.746727][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.746727][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.746727][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.746727][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.746727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.746727][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.746727][ T10] netlink_unicast+0x449/0x710 [ 2190.746727][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.746727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.746727][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.746727][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.746727][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.746727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.746727][ T10] [ 2190.748705][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2190.748705][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.748705][ T10] ipv6_find_idev+0x102/0x170 [ 2190.748705][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.748705][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.748705][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.748705][ T10] netlink_unicast+0x449/0x710 [ 2190.748705][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.748705][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.748705][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.748705][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.748705][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.748705][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.748705][ T10] [ 2190.750234][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2190.750234][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.750234][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.750234][ T10] ipv6_find_idev+0x102/0x170 [ 2190.750234][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.750234][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.750234][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.750234][ T10] netlink_unicast+0x449/0x710 [ 2190.750234][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.750234][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.750234][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.750234][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.750234][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.750234][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.750234][ T10] [ 2190.751891][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2190.752157][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2190.752157][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.752157][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.752157][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.752157][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.752157][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.752157][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.752157][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.752157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.752157][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.752157][ T10] netlink_unicast+0x449/0x710 [ 2190.752157][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.752157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.752157][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.752157][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.752157][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.752157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.752157][ T10] [ 2190.754150][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2190.754150][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.754150][ T10] ipv6_find_idev+0x102/0x170 [ 2190.754150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.754150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.754150][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.754150][ T10] netlink_unicast+0x449/0x710 [ 2190.754150][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.754150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.754150][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.754150][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.754150][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.754150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.754150][ T10] [ 2190.755704][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2190.755704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.755704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.755704][ T10] ipv6_find_idev+0x102/0x170 [ 2190.755704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.755704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.755704][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.755704][ T10] netlink_unicast+0x449/0x710 [ 2190.755704][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.755704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.755704][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.755704][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.755704][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.755704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.755704][ T10] [ 2190.757362][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2190.757626][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2190.757626][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.757626][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.757626][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.757626][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.757626][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.757626][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.757626][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.757626][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.757626][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.757626][ T10] netlink_unicast+0x449/0x710 [ 2190.757626][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.757626][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.757626][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.757626][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.757626][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.757626][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.757626][ T10] [ 2190.759831][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2190.759831][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.759831][ T10] ipv6_find_idev+0x102/0x170 [ 2190.759831][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.759831][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.759831][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.759831][ T10] netlink_unicast+0x449/0x710 [ 2190.759831][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.759831][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.759831][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.759831][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.759831][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.759831][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.759831][ T10] [ 2190.761578][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2190.761578][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.761578][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.761578][ T10] ipv6_find_idev+0x102/0x170 [ 2190.761578][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.761578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.761578][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.761578][ T10] netlink_unicast+0x449/0x710 [ 2190.761578][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.761578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.761578][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.761578][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.761578][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.761578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.761578][ T10] [ 2190.763448][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2190.763771][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2190.763771][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.763771][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.763771][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.763771][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.763771][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.763771][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.763771][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.763771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.763771][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.763771][ T10] netlink_unicast+0x449/0x710 [ 2190.763771][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.763771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.763771][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.763771][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.763771][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.763771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.763771][ T10] [ 2190.765750][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2190.765750][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.765750][ T10] ipv6_find_idev+0x102/0x170 [ 2190.765750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.765750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.765750][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.765750][ T10] netlink_unicast+0x449/0x710 [ 2190.765750][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.765750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.765750][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.765750][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.765750][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.765750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.765750][ T10] [ 2190.767429][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2190.767429][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.767429][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.767429][ T10] ipv6_find_idev+0x102/0x170 [ 2190.767429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.767429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.767429][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.767429][ T10] netlink_unicast+0x449/0x710 [ 2190.767429][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.767429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.767429][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.767429][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.767429][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.767429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.767429][ T10] [ 2190.769428][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2190.769814][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2190.769814][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.769814][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.769814][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.769814][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.769814][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.769814][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.769814][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.769814][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.769814][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.769814][ T10] netlink_unicast+0x449/0x710 [ 2190.769814][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.769814][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.769814][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.769814][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.769814][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.769814][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.769814][ T10] [ 2190.771907][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2190.771907][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.771907][ T10] ipv6_find_idev+0x102/0x170 [ 2190.771907][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.771907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.771907][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.771907][ T10] netlink_unicast+0x449/0x710 [ 2190.771907][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.771907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.771907][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.771907][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.771907][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.771907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.771907][ T10] [ 2190.773614][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2190.773614][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.773614][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.773614][ T10] ipv6_find_idev+0x102/0x170 [ 2190.773614][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.773614][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.773614][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.773614][ T10] netlink_unicast+0x449/0x710 [ 2190.773614][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.773614][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.773614][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.773614][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.773614][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.773614][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.773614][ T10] [ 2190.775511][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2190.775826][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2190.775826][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.775826][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.775826][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.775826][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.775826][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.775826][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.775826][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.775826][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.775826][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.775826][ T10] netlink_unicast+0x449/0x710 [ 2190.775826][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.775826][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.775826][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.775826][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.775826][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.775826][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.775826][ T10] [ 2190.777806][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2190.777806][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.777806][ T10] ipv6_find_idev+0x102/0x170 [ 2190.777806][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.777806][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.777806][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.777806][ T10] netlink_unicast+0x449/0x710 [ 2190.777806][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.777806][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.777806][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.777806][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.777806][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.777806][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.777806][ T10] [ 2190.779348][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2190.779348][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.779348][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.779348][ T10] ipv6_find_idev+0x102/0x170 [ 2190.779348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.779348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.779348][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.779348][ T10] netlink_unicast+0x449/0x710 [ 2190.779348][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.779348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.779348][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.779348][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.779348][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.779348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.779348][ T10] [ 2190.781072][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2190.781343][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2190.781343][ T10] netdev_get_by_index+0x5e/0x80 [ 2190.781343][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2190.781343][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2190.781343][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2190.781343][ T10] ipv6_add_addr+0x411/0x2000 [ 2190.781343][ T10] inet6_addr_add+0x30e/0xa40 [ 2190.781343][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2190.781343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.781343][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.781343][ T10] netlink_unicast+0x449/0x710 [ 2190.781343][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.781343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.781343][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.781343][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.781343][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.781343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.781343][ T10] [ 2190.783327][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2190.783327][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2190.783327][ T10] ipv6_find_idev+0x102/0x170 [ 2190.783327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.783327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.783327][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.783327][ T10] netlink_unicast+0x449/0x710 [ 2190.783327][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.783327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.783327][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.783327][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.783327][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.783327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.783327][ T10] [ 2190.784860][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2190.784860][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2190.784860][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2190.784860][ T10] ipv6_find_idev+0x102/0x170 [ 2190.784860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2190.784860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2190.784860][ T10] netlink_rcv_skb+0x130/0x360 [ 2190.784860][ T10] netlink_unicast+0x449/0x710 [ 2190.784860][ T10] netlink_sendmsg+0x723/0xbe0 [ 2190.784860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2190.784860][ T10] ___sys_sendmsg+0xee/0x170 [ 2190.784860][ T10] __sys_sendmsg+0xcd/0x170 [ 2190.784860][ T10] do_syscall_64+0xc6/0x1e0 [ 2190.784860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2190.784860][ T10] [ 2200.827661][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2200.827995][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2200.827995][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.827995][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.827995][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.827995][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.827995][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.827995][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.827995][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.827995][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.827995][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.827995][ T10] netlink_unicast+0x449/0x710 [ 2200.827995][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.827995][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.827995][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.827995][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.827995][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.827995][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.827995][ T10] [ 2200.830056][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2200.830056][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.830056][ T10] ipv6_find_idev+0x102/0x170 [ 2200.830056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.830056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.830056][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.830056][ T10] netlink_unicast+0x449/0x710 [ 2200.830056][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.830056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.830056][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.830056][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.830056][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.830056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.830056][ T10] [ 2200.831618][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2200.831618][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.831618][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.831618][ T10] ipv6_find_idev+0x102/0x170 [ 2200.831618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.831618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.831618][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.831618][ T10] netlink_unicast+0x449/0x710 [ 2200.831618][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.831618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.831618][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.831618][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.831618][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.831618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.831618][ T10] [ 2200.833343][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2200.833619][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2200.833619][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.833619][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.833619][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.833619][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.833619][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.833619][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.833619][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.833619][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.833619][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.833619][ T10] netlink_unicast+0x449/0x710 [ 2200.833619][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.833619][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.833619][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.833619][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.833619][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.833619][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.833619][ T10] [ 2200.835633][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2200.835633][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.835633][ T10] ipv6_find_idev+0x102/0x170 [ 2200.835633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.835633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.835633][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.835633][ T10] netlink_unicast+0x449/0x710 [ 2200.835633][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.835633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.835633][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.835633][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.835633][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.835633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.835633][ T10] [ 2200.837201][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2200.837201][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.837201][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.837201][ T10] ipv6_find_idev+0x102/0x170 [ 2200.837201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.837201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.837201][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.837201][ T10] netlink_unicast+0x449/0x710 [ 2200.837201][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.837201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.837201][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.837201][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.837201][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.837201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.837201][ T10] [ 2200.839029][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2200.839303][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2200.839303][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.839303][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.839303][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.839303][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.839303][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.839303][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.839303][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.839303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.839303][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.839303][ T10] netlink_unicast+0x449/0x710 [ 2200.839303][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.839303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.839303][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.839303][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.839303][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.839303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.839303][ T10] [ 2200.841337][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2200.841337][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.841337][ T10] ipv6_find_idev+0x102/0x170 [ 2200.841337][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.841337][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.841337][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.841337][ T10] netlink_unicast+0x449/0x710 [ 2200.841337][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.841337][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.841337][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.841337][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.841337][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.841337][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.841337][ T10] [ 2200.843011][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2200.843011][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.843011][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.843011][ T10] ipv6_find_idev+0x102/0x170 [ 2200.843011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.843011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.843011][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.843011][ T10] netlink_unicast+0x449/0x710 [ 2200.843011][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.843011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.843011][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.843011][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.843011][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.843011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.843011][ T10] [ 2200.844944][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2200.845209][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2200.845209][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.845209][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.845209][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.845209][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.845209][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.845209][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.845209][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.845209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.845209][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.845209][ T10] netlink_unicast+0x449/0x710 [ 2200.845209][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.845209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.845209][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.845209][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.845209][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.845209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.845209][ T10] [ 2200.847340][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2200.847340][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.847340][ T10] ipv6_find_idev+0x102/0x170 [ 2200.847340][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.847340][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.847340][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.847340][ T10] netlink_unicast+0x449/0x710 [ 2200.847340][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.847340][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.847340][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.847340][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.847340][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.847340][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.847340][ T10] [ 2200.848915][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2200.848915][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.848915][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.848915][ T10] ipv6_find_idev+0x102/0x170 [ 2200.848915][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.848915][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.848915][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.848915][ T10] netlink_unicast+0x449/0x710 [ 2200.848915][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.848915][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.848915][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.848915][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.848915][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.848915][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.848915][ T10] [ 2200.850627][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2200.850949][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2200.850949][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.850949][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.850949][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.850949][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.850949][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.850949][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.850949][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.850949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.850949][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.850949][ T10] netlink_unicast+0x449/0x710 [ 2200.850949][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.850949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.850949][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.850949][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.850949][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.850949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.850949][ T10] [ 2200.853132][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2200.853132][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.853132][ T10] ipv6_find_idev+0x102/0x170 [ 2200.853132][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.853132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.853132][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.853132][ T10] netlink_unicast+0x449/0x710 [ 2200.853132][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.853132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.853132][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.853132][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.853132][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.853132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.853132][ T10] [ 2200.854851][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2200.854851][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.854851][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.854851][ T10] ipv6_find_idev+0x102/0x170 [ 2200.854851][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.854851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.854851][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.854851][ T10] netlink_unicast+0x449/0x710 [ 2200.854851][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.854851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.854851][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.854851][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.854851][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.854851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.854851][ T10] [ 2200.856731][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2200.857002][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2200.857002][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.857002][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.857002][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.857002][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.857002][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.857002][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.857002][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.857002][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.857002][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.857002][ T10] netlink_unicast+0x449/0x710 [ 2200.857002][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.857002][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.857002][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.857002][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.857002][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.857002][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.857002][ T10] [ 2200.859232][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2200.859232][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.859232][ T10] ipv6_find_idev+0x102/0x170 [ 2200.859232][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.859232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.859232][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.859232][ T10] netlink_unicast+0x449/0x710 [ 2200.859232][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.859232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.859232][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.859232][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.859232][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.859232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.859232][ T10] [ 2200.861003][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2200.861003][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.861003][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.861003][ T10] ipv6_find_idev+0x102/0x170 [ 2200.861003][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.861003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.861003][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.861003][ T10] netlink_unicast+0x449/0x710 [ 2200.861003][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.861003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.861003][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.861003][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.861003][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.861003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.861003][ T10] [ 2200.863353][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2200.863670][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2200.863670][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.863670][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.863670][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.863670][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.863670][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.863670][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.863670][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.863670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.863670][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.863670][ T10] netlink_unicast+0x449/0x710 [ 2200.863670][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.863670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.863670][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.863670][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.863670][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.863670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.863670][ T10] [ 2200.865692][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2200.865692][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.865692][ T10] ipv6_find_idev+0x102/0x170 [ 2200.865692][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.865692][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.865692][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.865692][ T10] netlink_unicast+0x449/0x710 [ 2200.865692][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.865692][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.865692][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.865692][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.865692][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.865692][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.865692][ T10] [ 2200.867441][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2200.867441][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.867441][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.867441][ T10] ipv6_find_idev+0x102/0x170 [ 2200.867441][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.867441][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.867441][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.867441][ T10] netlink_unicast+0x449/0x710 [ 2200.867441][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.867441][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.867441][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.867441][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.867441][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.867441][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.867441][ T10] [ 2200.869415][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2200.869740][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2200.869740][ T10] netdev_get_by_index+0x5e/0x80 [ 2200.869740][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2200.869740][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2200.869740][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2200.869740][ T10] ipv6_add_addr+0x411/0x2000 [ 2200.869740][ T10] inet6_addr_add+0x30e/0xa40 [ 2200.869740][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2200.869740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.869740][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.869740][ T10] netlink_unicast+0x449/0x710 [ 2200.869740][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.869740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.869740][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.869740][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.869740][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.869740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.869740][ T10] [ 2200.871748][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2200.871748][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2200.871748][ T10] ipv6_find_idev+0x102/0x170 [ 2200.871748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.871748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.871748][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.871748][ T10] netlink_unicast+0x449/0x710 [ 2200.871748][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.871748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.871748][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.871748][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.871748][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.871748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.871748][ T10] [ 2200.873316][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2200.873316][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2200.873316][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2200.873316][ T10] ipv6_find_idev+0x102/0x170 [ 2200.873316][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2200.873316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2200.873316][ T10] netlink_rcv_skb+0x130/0x360 [ 2200.873316][ T10] netlink_unicast+0x449/0x710 [ 2200.873316][ T10] netlink_sendmsg+0x723/0xbe0 [ 2200.873316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2200.873316][ T10] ___sys_sendmsg+0xee/0x170 [ 2200.873316][ T10] __sys_sendmsg+0xcd/0x170 [ 2200.873316][ T10] do_syscall_64+0xc6/0x1e0 [ 2200.873316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2200.873316][ T10] [ 2210.995756][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2210.996151][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2210.996151][ T10] netdev_get_by_index+0x5e/0x80 [ 2210.996151][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2210.996151][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2210.996151][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2210.996151][ T10] ipv6_add_addr+0x411/0x2000 [ 2210.996151][ T10] inet6_addr_add+0x30e/0xa40 [ 2210.996151][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2210.996151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2210.996151][ T10] netlink_rcv_skb+0x130/0x360 [ 2210.996151][ T10] netlink_unicast+0x449/0x710 [ 2210.996151][ T10] netlink_sendmsg+0x723/0xbe0 [ 2210.996151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2210.996151][ T10] ___sys_sendmsg+0xee/0x170 [ 2210.996151][ T10] __sys_sendmsg+0xcd/0x170 [ 2210.996151][ T10] do_syscall_64+0xc6/0x1e0 [ 2210.996151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2210.996151][ T10] [ 2210.998156][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2210.998156][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2210.998156][ T10] ipv6_find_idev+0x102/0x170 [ 2210.998156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2210.998156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2210.998156][ T10] netlink_rcv_skb+0x130/0x360 [ 2210.998156][ T10] netlink_unicast+0x449/0x710 [ 2210.998156][ T10] netlink_sendmsg+0x723/0xbe0 [ 2210.998156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2210.998156][ T10] ___sys_sendmsg+0xee/0x170 [ 2210.998156][ T10] __sys_sendmsg+0xcd/0x170 [ 2210.998156][ T10] do_syscall_64+0xc6/0x1e0 [ 2210.998156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2210.998156][ T10] [ 2210.999680][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2210.999680][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2210.999680][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2210.999680][ T10] ipv6_find_idev+0x102/0x170 [ 2210.999680][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2210.999680][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2210.999680][ T10] netlink_rcv_skb+0x130/0x360 [ 2210.999680][ T10] netlink_unicast+0x449/0x710 [ 2210.999680][ T10] netlink_sendmsg+0x723/0xbe0 [ 2210.999680][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2210.999680][ T10] ___sys_sendmsg+0xee/0x170 [ 2210.999680][ T10] __sys_sendmsg+0xcd/0x170 [ 2210.999680][ T10] do_syscall_64+0xc6/0x1e0 [ 2210.999680][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2210.999680][ T10] [ 2211.001332][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2211.001615][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2211.001615][ T10] netdev_get_by_index+0x5e/0x80 [ 2211.001615][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2211.001615][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2211.001615][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2211.001615][ T10] ipv6_add_addr+0x411/0x2000 [ 2211.001615][ T10] inet6_addr_add+0x30e/0xa40 [ 2211.001615][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.001615][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.001615][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.001615][ T10] netlink_unicast+0x449/0x710 [ 2211.001615][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.001615][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.001615][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.001615][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.001615][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.001615][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.001615][ T10] [ 2211.003574][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2211.003574][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2211.003574][ T10] ipv6_find_idev+0x102/0x170 [ 2211.003574][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.003574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.003574][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.003574][ T10] netlink_unicast+0x449/0x710 [ 2211.003574][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.003574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.003574][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.003574][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.003574][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.003574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.003574][ T10] [ 2211.005076][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2211.005076][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2211.005076][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2211.005076][ T10] ipv6_find_idev+0x102/0x170 [ 2211.005076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.005076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.005076][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.005076][ T10] netlink_unicast+0x449/0x710 [ 2211.005076][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.005076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.005076][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.005076][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.005076][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.005076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.005076][ T10] [ 2211.006710][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2211.006967][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2211.006967][ T10] netdev_get_by_index+0x5e/0x80 [ 2211.006967][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2211.006967][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2211.006967][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2211.006967][ T10] ipv6_add_addr+0x411/0x2000 [ 2211.006967][ T10] inet6_addr_add+0x30e/0xa40 [ 2211.006967][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.006967][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.006967][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.006967][ T10] netlink_unicast+0x449/0x710 [ 2211.006967][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.006967][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.006967][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.006967][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.006967][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.006967][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.006967][ T10] [ 2211.008925][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2211.008925][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2211.008925][ T10] ipv6_find_idev+0x102/0x170 [ 2211.008925][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.008925][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.008925][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.008925][ T10] netlink_unicast+0x449/0x710 [ 2211.008925][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.008925][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.008925][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.008925][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.008925][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.008925][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.008925][ T10] [ 2211.010455][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2211.010455][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2211.010455][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2211.010455][ T10] ipv6_find_idev+0x102/0x170 [ 2211.010455][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.010455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.010455][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.010455][ T10] netlink_unicast+0x449/0x710 [ 2211.010455][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.010455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.010455][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.010455][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.010455][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.010455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.010455][ T10] [ 2211.012121][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2211.012385][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2211.012385][ T10] netdev_get_by_index+0x5e/0x80 [ 2211.012385][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2211.012385][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2211.012385][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2211.012385][ T10] ipv6_add_addr+0x411/0x2000 [ 2211.012385][ T10] inet6_addr_add+0x30e/0xa40 [ 2211.012385][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.012385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.012385][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.012385][ T10] netlink_unicast+0x449/0x710 [ 2211.012385][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.012385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.012385][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.012385][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.012385][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.012385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.012385][ T10] [ 2211.014393][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2211.014393][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2211.014393][ T10] ipv6_find_idev+0x102/0x170 [ 2211.014393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.014393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.014393][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.014393][ T10] netlink_unicast+0x449/0x710 [ 2211.014393][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.014393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.014393][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.014393][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.014393][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.014393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.014393][ T10] [ 2211.015902][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2211.015902][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2211.015902][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2211.015902][ T10] ipv6_find_idev+0x102/0x170 [ 2211.015902][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.015902][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.015902][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.015902][ T10] netlink_unicast+0x449/0x710 [ 2211.015902][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.015902][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.015902][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.015902][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.015902][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.015902][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.015902][ T10] [ 2211.017561][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2211.017886][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2211.017886][ T10] netdev_get_by_index+0x5e/0x80 [ 2211.017886][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2211.017886][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2211.017886][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2211.017886][ T10] ipv6_add_addr+0x411/0x2000 [ 2211.017886][ T10] inet6_addr_add+0x30e/0xa40 [ 2211.017886][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.017886][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.017886][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.017886][ T10] netlink_unicast+0x449/0x710 [ 2211.017886][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.017886][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.017886][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.017886][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.017886][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.017886][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.017886][ T10] [ 2211.020040][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2211.020040][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2211.020040][ T10] ipv6_find_idev+0x102/0x170 [ 2211.020040][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.020040][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.020040][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.020040][ T10] netlink_unicast+0x449/0x710 [ 2211.020040][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.020040][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.020040][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.020040][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.020040][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.020040][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.020040][ T10] [ 2211.021710][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2211.021710][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2211.021710][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2211.021710][ T10] ipv6_find_idev+0x102/0x170 [ 2211.021710][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.021710][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.021710][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.021710][ T10] netlink_unicast+0x449/0x710 [ 2211.021710][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.021710][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.021710][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.021710][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.021710][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.021710][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.021710][ T10] [ 2211.023657][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2211.023917][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2211.023917][ T10] netdev_get_by_index+0x5e/0x80 [ 2211.023917][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2211.023917][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2211.023917][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2211.023917][ T10] ipv6_add_addr+0x411/0x2000 [ 2211.023917][ T10] inet6_addr_add+0x30e/0xa40 [ 2211.023917][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.023917][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.023917][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.023917][ T10] netlink_unicast+0x449/0x710 [ 2211.023917][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.023917][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.023917][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.023917][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.023917][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.023917][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.023917][ T10] [ 2211.026154][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2211.026154][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2211.026154][ T10] ipv6_find_idev+0x102/0x170 [ 2211.026154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.026154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.026154][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.026154][ T10] netlink_unicast+0x449/0x710 [ 2211.026154][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.026154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.026154][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.026154][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.026154][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.026154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.026154][ T10] [ 2211.027881][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2211.027881][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2211.027881][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2211.027881][ T10] ipv6_find_idev+0x102/0x170 [ 2211.027881][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.027881][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.027881][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.027881][ T10] netlink_unicast+0x449/0x710 [ 2211.027881][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.027881][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.027881][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.027881][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.027881][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.027881][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.027881][ T10] [ 2211.029818][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2211.030082][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2211.030082][ T10] netdev_get_by_index+0x5e/0x80 [ 2211.030082][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2211.030082][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2211.030082][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2211.030082][ T10] ipv6_add_addr+0x411/0x2000 [ 2211.030082][ T10] inet6_addr_add+0x30e/0xa40 [ 2211.030082][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.030082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.030082][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.030082][ T10] netlink_unicast+0x449/0x710 [ 2211.030082][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.030082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.030082][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.030082][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.030082][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.030082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.030082][ T10] [ 2211.032241][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2211.032241][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2211.032241][ T10] ipv6_find_idev+0x102/0x170 [ 2211.032241][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.032241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.032241][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.032241][ T10] netlink_unicast+0x449/0x710 [ 2211.032241][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.032241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.032241][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.032241][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.032241][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.032241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.032241][ T10] [ 2211.033961][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2211.033961][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2211.033961][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2211.033961][ T10] ipv6_find_idev+0x102/0x170 [ 2211.033961][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.033961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.033961][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.033961][ T10] netlink_unicast+0x449/0x710 [ 2211.033961][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.033961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.033961][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.033961][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.033961][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.033961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.033961][ T10] [ 2211.035941][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2211.036202][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2211.036202][ T10] netdev_get_by_index+0x5e/0x80 [ 2211.036202][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2211.036202][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2211.036202][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2211.036202][ T10] ipv6_add_addr+0x411/0x2000 [ 2211.036202][ T10] inet6_addr_add+0x30e/0xa40 [ 2211.036202][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.036202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.036202][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.036202][ T10] netlink_unicast+0x449/0x710 [ 2211.036202][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.036202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.036202][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.036202][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.036202][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.036202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.036202][ T10] [ 2211.038359][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2211.038359][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2211.038359][ T10] ipv6_find_idev+0x102/0x170 [ 2211.038359][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.038359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.038359][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.038359][ T10] netlink_unicast+0x449/0x710 [ 2211.038359][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.038359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.038359][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.038359][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.038359][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.038359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.038359][ T10] [ 2211.040077][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2211.040077][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2211.040077][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2211.040077][ T10] ipv6_find_idev+0x102/0x170 [ 2211.040077][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.040077][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.040077][ T10] netlink_rcv_skb+0x130/0x360 [ 2211.040077][ T10] netlink_unicast+0x449/0x710 [ 2211.040077][ T10] netlink_sendmsg+0x723/0xbe0 [ 2211.040077][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2211.040077][ T10] ___sys_sendmsg+0xee/0x170 [ 2211.040077][ T10] __sys_sendmsg+0xcd/0x170 [ 2211.040077][ T10] do_syscall_64+0xc6/0x1e0 [ 2211.040077][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.040077][ T10] [ 2221.139751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2221.140195][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2221.140195][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.140195][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.140195][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.140195][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.140195][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.140195][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.140195][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.140195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.140195][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.140195][ T10] netlink_unicast+0x449/0x710 [ 2221.140195][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.140195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.140195][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.140195][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.140195][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.140195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.140195][ T10] [ 2221.142221][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2221.142221][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.142221][ T10] ipv6_find_idev+0x102/0x170 [ 2221.142221][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.142221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.142221][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.142221][ T10] netlink_unicast+0x449/0x710 [ 2221.142221][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.142221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.142221][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.142221][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.142221][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.142221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.142221][ T10] [ 2221.143764][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2221.143764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.143764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.143764][ T10] ipv6_find_idev+0x102/0x170 [ 2221.143764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.143764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.143764][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.143764][ T10] netlink_unicast+0x449/0x710 [ 2221.143764][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.143764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.143764][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.143764][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.143764][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.143764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.143764][ T10] [ 2221.145484][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2221.145801][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2221.145801][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.145801][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.145801][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.145801][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.145801][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.145801][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.145801][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.145801][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.145801][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.145801][ T10] netlink_unicast+0x449/0x710 [ 2221.145801][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.145801][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.145801][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.145801][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.145801][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.145801][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.145801][ T10] [ 2221.147808][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2221.147808][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.147808][ T10] ipv6_find_idev+0x102/0x170 [ 2221.147808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.147808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.147808][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.147808][ T10] netlink_unicast+0x449/0x710 [ 2221.147808][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.147808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.147808][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.147808][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.147808][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.147808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.147808][ T10] [ 2221.149359][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2221.149359][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.149359][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.149359][ T10] ipv6_find_idev+0x102/0x170 [ 2221.149359][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.149359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.149359][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.149359][ T10] netlink_unicast+0x449/0x710 [ 2221.149359][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.149359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.149359][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.149359][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.149359][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.149359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.149359][ T10] [ 2221.151088][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2221.151380][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2221.151380][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.151380][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.151380][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.151380][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.151380][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.151380][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.151380][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.151380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.151380][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.151380][ T10] netlink_unicast+0x449/0x710 [ 2221.151380][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.151380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.151380][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.151380][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.151380][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.151380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.151380][ T10] [ 2221.153378][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2221.153378][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.153378][ T10] ipv6_find_idev+0x102/0x170 [ 2221.153378][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.153378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.153378][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.153378][ T10] netlink_unicast+0x449/0x710 [ 2221.153378][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.153378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.153378][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.153378][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.153378][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.153378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.153378][ T10] [ 2221.154938][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2221.154938][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.154938][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.154938][ T10] ipv6_find_idev+0x102/0x170 [ 2221.154938][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.154938][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.154938][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.154938][ T10] netlink_unicast+0x449/0x710 [ 2221.154938][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.154938][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.154938][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.154938][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.154938][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.154938][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.154938][ T10] [ 2221.156631][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2221.157353][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2221.157353][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.157353][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.157353][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.157353][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.157353][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.157353][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.157353][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.157353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.157353][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.157353][ T10] netlink_unicast+0x449/0x710 [ 2221.157353][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.157353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.157353][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.157353][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.157353][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.157353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.157353][ T10] [ 2221.159347][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2221.159347][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.159347][ T10] ipv6_find_idev+0x102/0x170 [ 2221.159347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.159347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.159347][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.159347][ T10] netlink_unicast+0x449/0x710 [ 2221.159347][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.159347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.159347][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.159347][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.159347][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.159347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.159347][ T10] [ 2221.160923][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2221.160923][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.160923][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.160923][ T10] ipv6_find_idev+0x102/0x170 [ 2221.160923][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.160923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.160923][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.160923][ T10] netlink_unicast+0x449/0x710 [ 2221.160923][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.160923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.160923][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.160923][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.160923][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.160923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.160923][ T10] [ 2221.162651][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2221.163018][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2221.163018][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.163018][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.163018][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.163018][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.163018][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.163018][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.163018][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.163018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.163018][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.163018][ T10] netlink_unicast+0x449/0x710 [ 2221.163018][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.163018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.163018][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.163018][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.163018][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.163018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.163018][ T10] [ 2221.165019][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2221.165019][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.165019][ T10] ipv6_find_idev+0x102/0x170 [ 2221.165019][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.165019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.165019][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.165019][ T10] netlink_unicast+0x449/0x710 [ 2221.165019][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.165019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.165019][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.165019][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.165019][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.165019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.165019][ T10] [ 2221.166560][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2221.166560][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.166560][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.166560][ T10] ipv6_find_idev+0x102/0x170 [ 2221.166560][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.166560][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.166560][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.166560][ T10] netlink_unicast+0x449/0x710 [ 2221.166560][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.166560][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.166560][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.166560][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.166560][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.166560][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.166560][ T10] [ 2221.168252][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2221.168562][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2221.168562][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.168562][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.168562][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.168562][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.168562][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.168562][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.168562][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.168562][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.168562][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.168562][ T10] netlink_unicast+0x449/0x710 [ 2221.168562][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.168562][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.168562][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.168562][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.168562][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.168562][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.168562][ T10] [ 2221.170565][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2221.170565][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.170565][ T10] ipv6_find_idev+0x102/0x170 [ 2221.170565][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.170565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.170565][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.170565][ T10] netlink_unicast+0x449/0x710 [ 2221.170565][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.170565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.170565][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.170565][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.170565][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.170565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.170565][ T10] [ 2221.172279][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2221.172279][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.172279][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.172279][ T10] ipv6_find_idev+0x102/0x170 [ 2221.172279][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.172279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.172279][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.172279][ T10] netlink_unicast+0x449/0x710 [ 2221.172279][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.172279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.172279][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.172279][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.172279][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.172279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.172279][ T10] [ 2221.174279][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2221.174587][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2221.174587][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.174587][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.174587][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.174587][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.174587][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.174587][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.174587][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.174587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.174587][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.174587][ T10] netlink_unicast+0x449/0x710 [ 2221.174587][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.174587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.174587][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.174587][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.174587][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.174587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.174587][ T10] [ 2221.176754][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2221.176754][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.176754][ T10] ipv6_find_idev+0x102/0x170 [ 2221.176754][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.176754][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.176754][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.176754][ T10] netlink_unicast+0x449/0x710 [ 2221.176754][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.176754][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.176754][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.176754][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.176754][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.176754][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.176754][ T10] [ 2221.178483][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2221.178483][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.178483][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.178483][ T10] ipv6_find_idev+0x102/0x170 [ 2221.178483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.178483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.178483][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.178483][ T10] netlink_unicast+0x449/0x710 [ 2221.178483][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.178483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.178483][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.178483][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.178483][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.178483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.178483][ T10] [ 2221.180396][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2221.180722][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2221.180722][ T10] netdev_get_by_index+0x5e/0x80 [ 2221.180722][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2221.180722][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2221.180722][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2221.180722][ T10] ipv6_add_addr+0x411/0x2000 [ 2221.180722][ T10] inet6_addr_add+0x30e/0xa40 [ 2221.180722][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.180722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.180722][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.180722][ T10] netlink_unicast+0x449/0x710 [ 2221.180722][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.180722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.180722][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.180722][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.180722][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.180722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.180722][ T10] [ 2221.182896][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2221.182896][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2221.182896][ T10] ipv6_find_idev+0x102/0x170 [ 2221.182896][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.182896][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.182896][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.182896][ T10] netlink_unicast+0x449/0x710 [ 2221.182896][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.182896][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.182896][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.182896][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.182896][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.182896][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.182896][ T10] [ 2221.184604][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2221.184604][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2221.184604][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2221.184604][ T10] ipv6_find_idev+0x102/0x170 [ 2221.184604][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.184604][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.184604][ T10] netlink_rcv_skb+0x130/0x360 [ 2221.184604][ T10] netlink_unicast+0x449/0x710 [ 2221.184604][ T10] netlink_sendmsg+0x723/0xbe0 [ 2221.184604][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2221.184604][ T10] ___sys_sendmsg+0xee/0x170 [ 2221.184604][ T10] __sys_sendmsg+0xcd/0x170 [ 2221.184604][ T10] do_syscall_64+0xc6/0x1e0 [ 2221.184604][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.184604][ T10] [ 2231.427782][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2231.428224][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2231.428224][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.428224][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.428224][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.428224][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.428224][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.428224][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.428224][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.428224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.428224][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.428224][ T10] netlink_unicast+0x449/0x710 [ 2231.428224][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.428224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.428224][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.428224][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.428224][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.428224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.428224][ T10] [ 2231.430245][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2231.430245][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.430245][ T10] ipv6_find_idev+0x102/0x170 [ 2231.430245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.430245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.430245][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.430245][ T10] netlink_unicast+0x449/0x710 [ 2231.430245][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.430245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.430245][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.430245][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.430245][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.430245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.430245][ T10] [ 2231.431796][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2231.431796][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.431796][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.431796][ T10] ipv6_find_idev+0x102/0x170 [ 2231.431796][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.431796][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.431796][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.431796][ T10] netlink_unicast+0x449/0x710 [ 2231.431796][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.431796][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.431796][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.431796][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.431796][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.431796][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.431796][ T10] [ 2231.433518][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2231.433815][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2231.433815][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.433815][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.433815][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.433815][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.433815][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.433815][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.433815][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.433815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.433815][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.433815][ T10] netlink_unicast+0x449/0x710 [ 2231.433815][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.433815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.433815][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.433815][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.433815][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.433815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.433815][ T10] [ 2231.435746][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2231.435746][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.435746][ T10] ipv6_find_idev+0x102/0x170 [ 2231.435746][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.435746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.435746][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.435746][ T10] netlink_unicast+0x449/0x710 [ 2231.435746][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.435746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.435746][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.435746][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.435746][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.435746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.435746][ T10] [ 2231.437241][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2231.437241][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.437241][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.437241][ T10] ipv6_find_idev+0x102/0x170 [ 2231.437241][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.437241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.437241][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.437241][ T10] netlink_unicast+0x449/0x710 [ 2231.437241][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.437241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.437241][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.437241][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.437241][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.437241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.437241][ T10] [ 2231.438911][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2231.439175][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2231.439175][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.439175][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.439175][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.439175][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.439175][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.439175][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.439175][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.439175][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.439175][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.439175][ T10] netlink_unicast+0x449/0x710 [ 2231.439175][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.439175][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.439175][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.439175][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.439175][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.439175][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.439175][ T10] [ 2231.441191][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2231.441191][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.441191][ T10] ipv6_find_idev+0x102/0x170 [ 2231.441191][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.441191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.441191][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.441191][ T10] netlink_unicast+0x449/0x710 [ 2231.441191][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.441191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.441191][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.441191][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.441191][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.441191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.441191][ T10] [ 2231.442680][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2231.442680][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.442680][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.442680][ T10] ipv6_find_idev+0x102/0x170 [ 2231.442680][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.442680][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.442680][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.442680][ T10] netlink_unicast+0x449/0x710 [ 2231.442680][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.442680][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.442680][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.442680][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.442680][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.442680][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.442680][ T10] [ 2231.444308][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2231.444594][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2231.444594][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.444594][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.444594][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.444594][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.444594][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.444594][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.444594][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.444594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.444594][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.444594][ T10] netlink_unicast+0x449/0x710 [ 2231.444594][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.444594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.444594][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.444594][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.444594][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.444594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.444594][ T10] [ 2231.446587][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2231.446587][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.446587][ T10] ipv6_find_idev+0x102/0x170 [ 2231.446587][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.446587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.446587][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.446587][ T10] netlink_unicast+0x449/0x710 [ 2231.446587][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.446587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.446587][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.446587][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.446587][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.446587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.446587][ T10] [ 2231.448076][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2231.448076][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.448076][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.448076][ T10] ipv6_find_idev+0x102/0x170 [ 2231.448076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.448076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.448076][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.448076][ T10] netlink_unicast+0x449/0x710 [ 2231.448076][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.448076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.448076][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.448076][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.448076][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.448076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.448076][ T10] [ 2231.450140][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2231.450744][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2231.450744][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.450744][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.450744][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.450744][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.450744][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.450744][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.450744][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.450744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.450744][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.450744][ T10] netlink_unicast+0x449/0x710 [ 2231.450744][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.450744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.450744][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.450744][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.450744][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.450744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.450744][ T10] [ 2231.452714][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2231.452714][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.452714][ T10] ipv6_find_idev+0x102/0x170 [ 2231.452714][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.452714][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.452714][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.452714][ T10] netlink_unicast+0x449/0x710 [ 2231.452714][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.452714][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.452714][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.452714][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.452714][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.452714][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.452714][ T10] [ 2231.454203][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2231.454203][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.454203][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.454203][ T10] ipv6_find_idev+0x102/0x170 [ 2231.454203][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.454203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.454203][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.454203][ T10] netlink_unicast+0x449/0x710 [ 2231.454203][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.454203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.454203][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.454203][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.454203][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.454203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.454203][ T10] [ 2231.455835][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2231.456123][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2231.456123][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.456123][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.456123][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.456123][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.456123][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.456123][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.456123][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.456123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.456123][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.456123][ T10] netlink_unicast+0x449/0x710 [ 2231.456123][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.456123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.456123][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.456123][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.456123][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.456123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.456123][ T10] [ 2231.458106][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2231.458106][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.458106][ T10] ipv6_find_idev+0x102/0x170 [ 2231.458106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.458106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.458106][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.458106][ T10] netlink_unicast+0x449/0x710 [ 2231.458106][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.458106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.458106][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.458106][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.458106][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.458106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.458106][ T10] [ 2231.459701][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2231.459701][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.459701][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.459701][ T10] ipv6_find_idev+0x102/0x170 [ 2231.459701][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.459701][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.459701][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.459701][ T10] netlink_unicast+0x449/0x710 [ 2231.459701][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.459701][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.459701][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.459701][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.459701][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.459701][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.459701][ T10] [ 2231.461700][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2231.462009][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2231.462009][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.462009][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.462009][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.462009][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.462009][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.462009][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.462009][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.462009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.462009][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.462009][ T10] netlink_unicast+0x449/0x710 [ 2231.462009][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.462009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.462009][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.462009][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.462009][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.462009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.462009][ T10] [ 2231.464173][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2231.464173][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.464173][ T10] ipv6_find_idev+0x102/0x170 [ 2231.464173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.464173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.464173][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.464173][ T10] netlink_unicast+0x449/0x710 [ 2231.464173][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.464173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.464173][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.464173][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.464173][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.464173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.464173][ T10] [ 2231.465839][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2231.465839][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.465839][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.465839][ T10] ipv6_find_idev+0x102/0x170 [ 2231.465839][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.465839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.465839][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.465839][ T10] netlink_unicast+0x449/0x710 [ 2231.465839][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.465839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.465839][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.465839][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.465839][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.465839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.465839][ T10] [ 2231.467700][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2231.468018][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2231.468018][ T10] netdev_get_by_index+0x5e/0x80 [ 2231.468018][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2231.468018][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2231.468018][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2231.468018][ T10] ipv6_add_addr+0x411/0x2000 [ 2231.468018][ T10] inet6_addr_add+0x30e/0xa40 [ 2231.468018][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.468018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.468018][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.468018][ T10] netlink_unicast+0x449/0x710 [ 2231.468018][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.468018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.468018][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.468018][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.468018][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.468018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.468018][ T10] [ 2231.470207][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2231.470207][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2231.470207][ T10] ipv6_find_idev+0x102/0x170 [ 2231.470207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.470207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.470207][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.470207][ T10] netlink_unicast+0x449/0x710 [ 2231.470207][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.470207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.470207][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.470207][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.470207][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.470207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.470207][ T10] [ 2231.471909][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2231.471909][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2231.471909][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2231.471909][ T10] ipv6_find_idev+0x102/0x170 [ 2231.471909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.471909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.471909][ T10] netlink_rcv_skb+0x130/0x360 [ 2231.471909][ T10] netlink_unicast+0x449/0x710 [ 2231.471909][ T10] netlink_sendmsg+0x723/0xbe0 [ 2231.471909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2231.471909][ T10] ___sys_sendmsg+0xee/0x170 [ 2231.471909][ T10] __sys_sendmsg+0xcd/0x170 [ 2231.471909][ T10] do_syscall_64+0xc6/0x1e0 [ 2231.471909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.471909][ T10] [ 2241.483968][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2241.484282][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2241.484282][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.484282][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.484282][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.484282][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.484282][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.484282][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.484282][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.484282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.484282][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.484282][ T10] netlink_unicast+0x449/0x710 [ 2241.484282][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.484282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.484282][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.484282][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.484282][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.484282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.484282][ T10] [ 2241.486281][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2241.486281][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.486281][ T10] ipv6_find_idev+0x102/0x170 [ 2241.486281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.486281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.486281][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.486281][ T10] netlink_unicast+0x449/0x710 [ 2241.486281][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.486281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.486281][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.486281][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.486281][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.486281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.486281][ T10] [ 2241.487833][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2241.487833][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.487833][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.487833][ T10] ipv6_find_idev+0x102/0x170 [ 2241.487833][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.487833][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.487833][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.487833][ T10] netlink_unicast+0x449/0x710 [ 2241.487833][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.487833][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.487833][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.487833][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.487833][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.487833][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.487833][ T10] [ 2241.489717][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2241.489980][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2241.489980][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.489980][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.489980][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.489980][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.489980][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.489980][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.489980][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.489980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.489980][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.489980][ T10] netlink_unicast+0x449/0x710 [ 2241.489980][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.489980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.489980][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.489980][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.489980][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.489980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.489980][ T10] [ 2241.491995][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2241.491995][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.491995][ T10] ipv6_find_idev+0x102/0x170 [ 2241.491995][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.491995][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.491995][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.491995][ T10] netlink_unicast+0x449/0x710 [ 2241.491995][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.491995][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.491995][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.491995][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.491995][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.491995][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.491995][ T10] [ 2241.493535][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2241.493535][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.493535][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.493535][ T10] ipv6_find_idev+0x102/0x170 [ 2241.493535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.493535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.493535][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.493535][ T10] netlink_unicast+0x449/0x710 [ 2241.493535][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.493535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.493535][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.493535][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.493535][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.493535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.493535][ T10] [ 2241.495389][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2241.495661][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2241.495661][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.495661][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.495661][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.495661][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.495661][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.495661][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.495661][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.495661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.495661][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.495661][ T10] netlink_unicast+0x449/0x710 [ 2241.495661][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.495661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.495661][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.495661][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.495661][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.495661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.495661][ T10] [ 2241.497984][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2241.497984][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.497984][ T10] ipv6_find_idev+0x102/0x170 [ 2241.497984][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.497984][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.497984][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.497984][ T10] netlink_unicast+0x449/0x710 [ 2241.497984][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.497984][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.497984][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.497984][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.497984][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.497984][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.497984][ T10] [ 2241.499764][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2241.499764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.499764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.499764][ T10] ipv6_find_idev+0x102/0x170 [ 2241.499764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.499764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.499764][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.499764][ T10] netlink_unicast+0x449/0x710 [ 2241.499764][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.499764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.499764][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.499764][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.499764][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.499764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.499764][ T10] [ 2241.501816][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2241.502079][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2241.502079][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.502079][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.502079][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.502079][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.502079][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.502079][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.502079][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.502079][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.502079][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.502079][ T10] netlink_unicast+0x449/0x710 [ 2241.502079][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.502079][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.502079][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.502079][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.502079][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.502079][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.502079][ T10] [ 2241.504279][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2241.504279][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.504279][ T10] ipv6_find_idev+0x102/0x170 [ 2241.504279][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.504279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.504279][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.504279][ T10] netlink_unicast+0x449/0x710 [ 2241.504279][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.504279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.504279][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.504279][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.504279][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.504279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.504279][ T10] [ 2241.506030][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2241.506030][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.506030][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.506030][ T10] ipv6_find_idev+0x102/0x170 [ 2241.506030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.506030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.506030][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.506030][ T10] netlink_unicast+0x449/0x710 [ 2241.506030][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.506030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.506030][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.506030][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.506030][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.506030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.506030][ T10] [ 2241.507997][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2241.508338][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2241.508338][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.508338][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.508338][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.508338][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.508338][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.508338][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.508338][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.508338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.508338][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.508338][ T10] netlink_unicast+0x449/0x710 [ 2241.508338][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.508338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.508338][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.508338][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.508338][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.508338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.508338][ T10] [ 2241.510413][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2241.510413][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.510413][ T10] ipv6_find_idev+0x102/0x170 [ 2241.510413][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.510413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.510413][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.510413][ T10] netlink_unicast+0x449/0x710 [ 2241.510413][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.510413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.510413][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.510413][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.510413][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.510413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.510413][ T10] [ 2241.512035][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2241.512035][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.512035][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.512035][ T10] ipv6_find_idev+0x102/0x170 [ 2241.512035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.512035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.512035][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.512035][ T10] netlink_unicast+0x449/0x710 [ 2241.512035][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.512035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.512035][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.512035][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.512035][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.512035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.512035][ T10] [ 2241.514053][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2241.514322][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2241.514322][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.514322][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.514322][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.514322][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.514322][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.514322][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.514322][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.514322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.514322][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.514322][ T10] netlink_unicast+0x449/0x710 [ 2241.514322][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.514322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.514322][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.514322][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.514322][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.514322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.514322][ T10] [ 2241.516628][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2241.516628][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.516628][ T10] ipv6_find_idev+0x102/0x170 [ 2241.516628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.516628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.516628][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.516628][ T10] netlink_unicast+0x449/0x710 [ 2241.516628][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.516628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.516628][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.516628][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.516628][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.516628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.516628][ T10] [ 2241.518280][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2241.518280][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.518280][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.518280][ T10] ipv6_find_idev+0x102/0x170 [ 2241.518280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.518280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.518280][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.518280][ T10] netlink_unicast+0x449/0x710 [ 2241.518280][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.518280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.518280][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.518280][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.518280][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.518280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.518280][ T10] [ 2241.520227][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2241.520492][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2241.520492][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.520492][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.520492][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.520492][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.520492][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.520492][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.520492][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.520492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.520492][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.520492][ T10] netlink_unicast+0x449/0x710 [ 2241.520492][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.520492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.520492][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.520492][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.520492][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.520492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.520492][ T10] [ 2241.522605][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2241.522605][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.522605][ T10] ipv6_find_idev+0x102/0x170 [ 2241.522605][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.522605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.522605][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.522605][ T10] netlink_unicast+0x449/0x710 [ 2241.522605][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.522605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.522605][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.522605][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.522605][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.522605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.522605][ T10] [ 2241.524156][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2241.524156][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.524156][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.524156][ T10] ipv6_find_idev+0x102/0x170 [ 2241.524156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.524156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.524156][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.524156][ T10] netlink_unicast+0x449/0x710 [ 2241.524156][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.524156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.524156][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.524156][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.524156][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.524156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.524156][ T10] [ 2241.525880][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2241.526150][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2241.526150][ T10] netdev_get_by_index+0x5e/0x80 [ 2241.526150][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2241.526150][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2241.526150][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2241.526150][ T10] ipv6_add_addr+0x411/0x2000 [ 2241.526150][ T10] inet6_addr_add+0x30e/0xa40 [ 2241.526150][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.526150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.526150][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.526150][ T10] netlink_unicast+0x449/0x710 [ 2241.526150][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.526150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.526150][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.526150][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.526150][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.526150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.526150][ T10] [ 2241.528239][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2241.528239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2241.528239][ T10] ipv6_find_idev+0x102/0x170 [ 2241.528239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.528239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.528239][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.528239][ T10] netlink_unicast+0x449/0x710 [ 2241.528239][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.528239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.528239][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.528239][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.528239][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.528239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.528239][ T10] [ 2241.529942][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2241.529942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2241.529942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2241.529942][ T10] ipv6_find_idev+0x102/0x170 [ 2241.529942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.529942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.529942][ T10] netlink_rcv_skb+0x130/0x360 [ 2241.529942][ T10] netlink_unicast+0x449/0x710 [ 2241.529942][ T10] netlink_sendmsg+0x723/0xbe0 [ 2241.529942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2241.529942][ T10] ___sys_sendmsg+0xee/0x170 [ 2241.529942][ T10] __sys_sendmsg+0xcd/0x170 [ 2241.529942][ T10] do_syscall_64+0xc6/0x1e0 [ 2241.529942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.529942][ T10] [ 2251.691743][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2251.692084][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2251.692084][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.692084][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.692084][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.692084][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.692084][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.692084][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.692084][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.692084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.692084][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.692084][ T10] netlink_unicast+0x449/0x710 [ 2251.692084][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.692084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.692084][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.692084][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.692084][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.692084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.692084][ T10] [ 2251.695195][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2251.695195][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.695195][ T10] ipv6_find_idev+0x102/0x170 [ 2251.695195][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.695195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.695195][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.695195][ T10] netlink_unicast+0x449/0x710 [ 2251.695195][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.695195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.695195][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.695195][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.695195][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.695195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.695195][ T10] [ 2251.697562][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2251.697562][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.697562][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.697562][ T10] ipv6_find_idev+0x102/0x170 [ 2251.697562][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.697562][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.697562][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.697562][ T10] netlink_unicast+0x449/0x710 [ 2251.697562][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.697562][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.697562][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.697562][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.697562][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.697562][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.697562][ T10] [ 2251.700205][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2251.700607][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2251.700607][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.700607][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.700607][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.700607][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.700607][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.700607][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.700607][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.700607][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.700607][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.700607][ T10] netlink_unicast+0x449/0x710 [ 2251.700607][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.700607][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.700607][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.700607][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.700607][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.700607][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.700607][ T10] [ 2251.703159][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2251.703159][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.703159][ T10] ipv6_find_idev+0x102/0x170 [ 2251.703159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.703159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.703159][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.703159][ T10] netlink_unicast+0x449/0x710 [ 2251.703159][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.703159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.703159][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.703159][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.703159][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.703159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.703159][ T10] [ 2251.704699][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2251.704699][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.704699][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.704699][ T10] ipv6_find_idev+0x102/0x170 [ 2251.704699][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.704699][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.704699][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.704699][ T10] netlink_unicast+0x449/0x710 [ 2251.704699][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.704699][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.704699][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.704699][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.704699][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.704699][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.704699][ T10] [ 2251.706374][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2251.706652][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2251.706652][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.706652][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.706652][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.706652][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.706652][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.706652][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.706652][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.706652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.706652][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.706652][ T10] netlink_unicast+0x449/0x710 [ 2251.706652][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.706652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.706652][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.706652][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.706652][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.706652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.706652][ T10] [ 2251.708644][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2251.708644][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.708644][ T10] ipv6_find_idev+0x102/0x170 [ 2251.708644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.708644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.708644][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.708644][ T10] netlink_unicast+0x449/0x710 [ 2251.708644][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.708644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.708644][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.708644][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.708644][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.708644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.708644][ T10] [ 2251.710197][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2251.710197][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.710197][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.710197][ T10] ipv6_find_idev+0x102/0x170 [ 2251.710197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.710197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.710197][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.710197][ T10] netlink_unicast+0x449/0x710 [ 2251.710197][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.710197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.710197][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.710197][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.710197][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.710197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.710197][ T10] [ 2251.711875][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2251.712140][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2251.712140][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.712140][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.712140][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.712140][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.712140][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.712140][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.712140][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.712140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.712140][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.712140][ T10] netlink_unicast+0x449/0x710 [ 2251.712140][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.712140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.712140][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.712140][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.712140][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.712140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.712140][ T10] [ 2251.714112][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2251.714112][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.714112][ T10] ipv6_find_idev+0x102/0x170 [ 2251.714112][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.714112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.714112][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.714112][ T10] netlink_unicast+0x449/0x710 [ 2251.714112][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.714112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.714112][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.714112][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.714112][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.714112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.714112][ T10] [ 2251.715630][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2251.715630][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.715630][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.715630][ T10] ipv6_find_idev+0x102/0x170 [ 2251.715630][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.715630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.715630][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.715630][ T10] netlink_unicast+0x449/0x710 [ 2251.715630][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.715630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.715630][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.715630][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.715630][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.715630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.715630][ T10] [ 2251.717353][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2251.717623][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2251.717623][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.717623][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.717623][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.717623][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.717623][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.717623][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.717623][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.717623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.717623][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.717623][ T10] netlink_unicast+0x449/0x710 [ 2251.717623][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.717623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.717623][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.717623][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.717623][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.717623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.717623][ T10] [ 2251.719617][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2251.719617][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.719617][ T10] ipv6_find_idev+0x102/0x170 [ 2251.719617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.719617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.719617][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.719617][ T10] netlink_unicast+0x449/0x710 [ 2251.719617][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.719617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.719617][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.719617][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.719617][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.719617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.719617][ T10] [ 2251.721142][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2251.721142][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.721142][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.721142][ T10] ipv6_find_idev+0x102/0x170 [ 2251.721142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.721142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.721142][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.721142][ T10] netlink_unicast+0x449/0x710 [ 2251.721142][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.721142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.721142][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.721142][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.721142][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.721142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.721142][ T10] [ 2251.722834][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2251.723103][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2251.723103][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.723103][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.723103][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.723103][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.723103][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.723103][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.723103][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.723103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.723103][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.723103][ T10] netlink_unicast+0x449/0x710 [ 2251.723103][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.723103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.723103][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.723103][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.723103][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.723103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.723103][ T10] [ 2251.725107][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2251.725107][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.725107][ T10] ipv6_find_idev+0x102/0x170 [ 2251.725107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.725107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.725107][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.725107][ T10] netlink_unicast+0x449/0x710 [ 2251.725107][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.725107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.725107][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.725107][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.725107][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.725107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.725107][ T10] [ 2251.726650][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2251.726650][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.726650][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.726650][ T10] ipv6_find_idev+0x102/0x170 [ 2251.726650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.726650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.726650][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.726650][ T10] netlink_unicast+0x449/0x710 [ 2251.726650][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.726650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.726650][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.726650][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.726650][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.726650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.726650][ T10] [ 2251.728428][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2251.728740][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2251.728740][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.728740][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.728740][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.728740][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.728740][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.728740][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.728740][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.728740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.728740][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.728740][ T10] netlink_unicast+0x449/0x710 [ 2251.728740][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.728740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.728740][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.728740][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.728740][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.728740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.728740][ T10] [ 2251.730945][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2251.730945][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.730945][ T10] ipv6_find_idev+0x102/0x170 [ 2251.730945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.730945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.730945][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.730945][ T10] netlink_unicast+0x449/0x710 [ 2251.730945][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.730945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.730945][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.730945][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.730945][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.730945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.730945][ T10] [ 2251.732642][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2251.732642][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.732642][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.732642][ T10] ipv6_find_idev+0x102/0x170 [ 2251.732642][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.732642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.732642][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.732642][ T10] netlink_unicast+0x449/0x710 [ 2251.732642][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.732642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.732642][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.732642][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.732642][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.732642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.732642][ T10] [ 2251.734615][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2251.734928][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2251.734928][ T10] netdev_get_by_index+0x5e/0x80 [ 2251.734928][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2251.734928][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2251.734928][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2251.734928][ T10] ipv6_add_addr+0x411/0x2000 [ 2251.734928][ T10] inet6_addr_add+0x30e/0xa40 [ 2251.734928][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2251.734928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.734928][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.734928][ T10] netlink_unicast+0x449/0x710 [ 2251.734928][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.734928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.734928][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.734928][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.734928][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.734928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.734928][ T10] [ 2251.736882][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2251.736882][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2251.736882][ T10] ipv6_find_idev+0x102/0x170 [ 2251.736882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.736882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.736882][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.736882][ T10] netlink_unicast+0x449/0x710 [ 2251.736882][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.736882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.736882][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.736882][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.736882][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.736882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.736882][ T10] [ 2251.738508][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2251.738508][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2251.738508][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2251.738508][ T10] ipv6_find_idev+0x102/0x170 [ 2251.738508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2251.738508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2251.738508][ T10] netlink_rcv_skb+0x130/0x360 [ 2251.738508][ T10] netlink_unicast+0x449/0x710 [ 2251.738508][ T10] netlink_sendmsg+0x723/0xbe0 [ 2251.738508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2251.738508][ T10] ___sys_sendmsg+0xee/0x170 [ 2251.738508][ T10] __sys_sendmsg+0xcd/0x170 [ 2251.738508][ T10] do_syscall_64+0xc6/0x1e0 [ 2251.738508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2251.738508][ T10] [ 2261.803774][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2261.804229][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2261.804229][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.804229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.804229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.804229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.804229][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.804229][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.804229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.804229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.804229][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.804229][ T10] netlink_unicast+0x449/0x710 [ 2261.804229][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.804229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.804229][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.804229][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.804229][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.804229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.804229][ T10] [ 2261.806275][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2261.806275][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.806275][ T10] ipv6_find_idev+0x102/0x170 [ 2261.806275][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.806275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.806275][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.806275][ T10] netlink_unicast+0x449/0x710 [ 2261.806275][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.806275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.806275][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.806275][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.806275][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.806275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.806275][ T10] [ 2261.807834][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2261.807834][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.807834][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.807834][ T10] ipv6_find_idev+0x102/0x170 [ 2261.807834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.807834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.807834][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.807834][ T10] netlink_unicast+0x449/0x710 [ 2261.807834][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.807834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.807834][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.807834][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.807834][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.807834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.807834][ T10] [ 2261.809625][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2261.809919][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2261.809919][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.809919][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.809919][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.809919][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.809919][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.809919][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.809919][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.809919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.809919][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.809919][ T10] netlink_unicast+0x449/0x710 [ 2261.809919][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.809919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.809919][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.809919][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.809919][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.809919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.809919][ T10] [ 2261.811918][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2261.811918][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.811918][ T10] ipv6_find_idev+0x102/0x170 [ 2261.811918][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.811918][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.811918][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.811918][ T10] netlink_unicast+0x449/0x710 [ 2261.811918][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.811918][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.811918][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.811918][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.811918][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.811918][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.811918][ T10] [ 2261.813464][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2261.813464][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.813464][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.813464][ T10] ipv6_find_idev+0x102/0x170 [ 2261.813464][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.813464][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.813464][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.813464][ T10] netlink_unicast+0x449/0x710 [ 2261.813464][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.813464][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.813464][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.813464][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.813464][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.813464][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.813464][ T10] [ 2261.815138][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2261.815415][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2261.815415][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.815415][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.815415][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.815415][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.815415][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.815415][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.815415][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.815415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.815415][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.815415][ T10] netlink_unicast+0x449/0x710 [ 2261.815415][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.815415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.815415][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.815415][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.815415][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.815415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.815415][ T10] [ 2261.817429][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2261.817429][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.817429][ T10] ipv6_find_idev+0x102/0x170 [ 2261.817429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.817429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.817429][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.817429][ T10] netlink_unicast+0x449/0x710 [ 2261.817429][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.817429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.817429][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.817429][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.817429][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.817429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.817429][ T10] [ 2261.818966][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2261.818966][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.818966][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.818966][ T10] ipv6_find_idev+0x102/0x170 [ 2261.818966][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.818966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.818966][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.818966][ T10] netlink_unicast+0x449/0x710 [ 2261.818966][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.818966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.818966][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.818966][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.818966][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.818966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.818966][ T10] [ 2261.820761][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2261.821053][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2261.821053][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.821053][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.821053][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.821053][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.821053][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.821053][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.821053][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.821053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.821053][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.821053][ T10] netlink_unicast+0x449/0x710 [ 2261.821053][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.821053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.821053][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.821053][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.821053][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.821053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.821053][ T10] [ 2261.823239][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2261.823239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.823239][ T10] ipv6_find_idev+0x102/0x170 [ 2261.823239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.823239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.823239][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.823239][ T10] netlink_unicast+0x449/0x710 [ 2261.823239][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.823239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.823239][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.823239][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.823239][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.823239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.823239][ T10] [ 2261.824923][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2261.824923][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.824923][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.824923][ T10] ipv6_find_idev+0x102/0x170 [ 2261.824923][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.824923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.824923][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.824923][ T10] netlink_unicast+0x449/0x710 [ 2261.824923][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.824923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.824923][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.824923][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.824923][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.824923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.824923][ T10] [ 2261.827178][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2261.827465][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2261.827465][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.827465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.827465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.827465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.827465][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.827465][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.827465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.827465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.827465][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.827465][ T10] netlink_unicast+0x449/0x710 [ 2261.827465][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.827465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.827465][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.827465][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.827465][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.827465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.827465][ T10] [ 2261.829651][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2261.829651][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.829651][ T10] ipv6_find_idev+0x102/0x170 [ 2261.829651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.829651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.829651][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.829651][ T10] netlink_unicast+0x449/0x710 [ 2261.829651][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.829651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.829651][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.829651][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.829651][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.829651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.829651][ T10] [ 2261.831326][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2261.831326][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.831326][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.831326][ T10] ipv6_find_idev+0x102/0x170 [ 2261.831326][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.831326][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.831326][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.831326][ T10] netlink_unicast+0x449/0x710 [ 2261.831326][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.831326][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.831326][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.831326][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.831326][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.831326][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.831326][ T10] [ 2261.833218][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2261.833503][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2261.833503][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.833503][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.833503][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.833503][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.833503][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.833503][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.833503][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.833503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.833503][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.833503][ T10] netlink_unicast+0x449/0x710 [ 2261.833503][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.833503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.833503][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.833503][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.833503][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.833503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.833503][ T10] [ 2261.835709][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2261.835709][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.835709][ T10] ipv6_find_idev+0x102/0x170 [ 2261.835709][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.835709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.835709][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.835709][ T10] netlink_unicast+0x449/0x710 [ 2261.835709][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.835709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.835709][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.835709][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.835709][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.835709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.835709][ T10] [ 2261.837365][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2261.837365][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.837365][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.837365][ T10] ipv6_find_idev+0x102/0x170 [ 2261.837365][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.837365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.837365][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.837365][ T10] netlink_unicast+0x449/0x710 [ 2261.837365][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.837365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.837365][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.837365][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.837365][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.837365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.837365][ T10] [ 2261.839259][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2261.839523][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2261.839523][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.839523][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.839523][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.839523][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.839523][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.839523][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.839523][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.839523][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.839523][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.839523][ T10] netlink_unicast+0x449/0x710 [ 2261.839523][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.839523][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.839523][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.839523][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.839523][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.839523][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.839523][ T10] [ 2261.841749][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2261.841749][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.841749][ T10] ipv6_find_idev+0x102/0x170 [ 2261.841749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.841749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.841749][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.841749][ T10] netlink_unicast+0x449/0x710 [ 2261.841749][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.841749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.841749][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.841749][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.841749][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.841749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.841749][ T10] [ 2261.843406][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2261.843406][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.843406][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.843406][ T10] ipv6_find_idev+0x102/0x170 [ 2261.843406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.843406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.843406][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.843406][ T10] netlink_unicast+0x449/0x710 [ 2261.843406][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.843406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.843406][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.843406][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.843406][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.843406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.843406][ T10] [ 2261.845362][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2261.845623][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2261.845623][ T10] netdev_get_by_index+0x5e/0x80 [ 2261.845623][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2261.845623][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2261.845623][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2261.845623][ T10] ipv6_add_addr+0x411/0x2000 [ 2261.845623][ T10] inet6_addr_add+0x30e/0xa40 [ 2261.845623][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2261.845623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.845623][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.845623][ T10] netlink_unicast+0x449/0x710 [ 2261.845623][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.845623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.845623][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.845623][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.845623][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.845623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.845623][ T10] [ 2261.847852][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2261.847852][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2261.847852][ T10] ipv6_find_idev+0x102/0x170 [ 2261.847852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.847852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.847852][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.847852][ T10] netlink_unicast+0x449/0x710 [ 2261.847852][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.847852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.847852][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.847852][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.847852][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.847852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.847852][ T10] [ 2261.849505][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2261.849505][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2261.849505][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2261.849505][ T10] ipv6_find_idev+0x102/0x170 [ 2261.849505][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2261.849505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2261.849505][ T10] netlink_rcv_skb+0x130/0x360 [ 2261.849505][ T10] netlink_unicast+0x449/0x710 [ 2261.849505][ T10] netlink_sendmsg+0x723/0xbe0 [ 2261.849505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2261.849505][ T10] ___sys_sendmsg+0xee/0x170 [ 2261.849505][ T10] __sys_sendmsg+0xcd/0x170 [ 2261.849505][ T10] do_syscall_64+0xc6/0x1e0 [ 2261.849505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2261.849505][ T10] [ 2271.859705][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2271.860154][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2271.860154][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.860154][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.860154][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.860154][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.860154][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.860154][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.860154][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.860154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.860154][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.860154][ T10] netlink_unicast+0x449/0x710 [ 2271.860154][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.860154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.860154][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.860154][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.860154][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.860154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.860154][ T10] [ 2271.862168][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2271.862168][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.862168][ T10] ipv6_find_idev+0x102/0x170 [ 2271.862168][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.862168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.862168][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.862168][ T10] netlink_unicast+0x449/0x710 [ 2271.862168][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.862168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.862168][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.862168][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.862168][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.862168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.862168][ T10] [ 2271.863706][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2271.863706][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.863706][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.863706][ T10] ipv6_find_idev+0x102/0x170 [ 2271.863706][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.863706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.863706][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.863706][ T10] netlink_unicast+0x449/0x710 [ 2271.863706][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.863706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.863706][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.863706][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.863706][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.863706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.863706][ T10] [ 2271.865379][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2271.865658][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2271.865658][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.865658][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.865658][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.865658][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.865658][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.865658][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.865658][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.865658][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.865658][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.865658][ T10] netlink_unicast+0x449/0x710 [ 2271.865658][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.865658][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.865658][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.865658][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.865658][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.865658][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.865658][ T10] [ 2271.867617][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2271.867617][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.867617][ T10] ipv6_find_idev+0x102/0x170 [ 2271.867617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.867617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.867617][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.867617][ T10] netlink_unicast+0x449/0x710 [ 2271.867617][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.867617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.867617][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.867617][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.867617][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.867617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.867617][ T10] [ 2271.869134][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2271.869134][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.869134][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.869134][ T10] ipv6_find_idev+0x102/0x170 [ 2271.869134][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.869134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.869134][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.869134][ T10] netlink_unicast+0x449/0x710 [ 2271.869134][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.869134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.869134][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.869134][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.869134][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.869134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.869134][ T10] [ 2271.870800][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2271.871062][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2271.871062][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.871062][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.871062][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.871062][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.871062][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.871062][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.871062][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.871062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.871062][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.871062][ T10] netlink_unicast+0x449/0x710 [ 2271.871062][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.871062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.871062][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.871062][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.871062][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.871062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.871062][ T10] [ 2271.873020][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2271.873020][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.873020][ T10] ipv6_find_idev+0x102/0x170 [ 2271.873020][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.873020][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.873020][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.873020][ T10] netlink_unicast+0x449/0x710 [ 2271.873020][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.873020][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.873020][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.873020][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.873020][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.873020][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.873020][ T10] [ 2271.874538][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2271.874538][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.874538][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.874538][ T10] ipv6_find_idev+0x102/0x170 [ 2271.874538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.874538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.874538][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.874538][ T10] netlink_unicast+0x449/0x710 [ 2271.874538][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.874538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.874538][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.874538][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.874538][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.874538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.874538][ T10] [ 2271.876205][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2271.876465][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2271.876465][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.876465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.876465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.876465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.876465][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.876465][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.876465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.876465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.876465][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.876465][ T10] netlink_unicast+0x449/0x710 [ 2271.876465][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.876465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.876465][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.876465][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.876465][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.876465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.876465][ T10] [ 2271.878434][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2271.878434][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.878434][ T10] ipv6_find_idev+0x102/0x170 [ 2271.878434][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.878434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.878434][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.878434][ T10] netlink_unicast+0x449/0x710 [ 2271.878434][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.878434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.878434][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.878434][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.878434][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.878434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.878434][ T10] [ 2271.879950][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2271.879950][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.879950][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.879950][ T10] ipv6_find_idev+0x102/0x170 [ 2271.879950][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.879950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.879950][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.879950][ T10] netlink_unicast+0x449/0x710 [ 2271.879950][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.879950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.879950][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.879950][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.879950][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.879950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.879950][ T10] [ 2271.882031][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2271.882292][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2271.882292][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.882292][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.882292][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.882292][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.882292][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.882292][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.882292][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.882292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.882292][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.882292][ T10] netlink_unicast+0x449/0x710 [ 2271.882292][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.882292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.882292][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.882292][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.882292][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.882292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.882292][ T10] [ 2271.884262][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2271.884262][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.884262][ T10] ipv6_find_idev+0x102/0x170 [ 2271.884262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.884262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.884262][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.884262][ T10] netlink_unicast+0x449/0x710 [ 2271.884262][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.884262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.884262][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.884262][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.884262][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.884262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.884262][ T10] [ 2271.885778][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2271.885778][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.885778][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.885778][ T10] ipv6_find_idev+0x102/0x170 [ 2271.885778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.885778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.885778][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.885778][ T10] netlink_unicast+0x449/0x710 [ 2271.885778][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.885778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.885778][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.885778][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.885778][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.885778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.885778][ T10] [ 2271.887477][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2271.887797][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2271.887797][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.887797][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.887797][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.887797][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.887797][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.887797][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.887797][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.887797][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.887797][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.887797][ T10] netlink_unicast+0x449/0x710 [ 2271.887797][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.887797][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.887797][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.887797][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.887797][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.887797][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.887797][ T10] [ 2271.889775][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2271.889775][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.889775][ T10] ipv6_find_idev+0x102/0x170 [ 2271.889775][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.889775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.889775][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.889775][ T10] netlink_unicast+0x449/0x710 [ 2271.889775][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.889775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.889775][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.889775][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.889775][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.889775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.889775][ T10] [ 2271.891534][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2271.891534][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.891534][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.891534][ T10] ipv6_find_idev+0x102/0x170 [ 2271.891534][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.891534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.891534][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.891534][ T10] netlink_unicast+0x449/0x710 [ 2271.891534][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.891534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.891534][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.891534][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.891534][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.891534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.891534][ T10] [ 2271.893404][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2271.893664][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2271.893664][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.893664][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.893664][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.893664][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.893664][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.893664][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.893664][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.893664][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.893664][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.893664][ T10] netlink_unicast+0x449/0x710 [ 2271.893664][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.893664][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.893664][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.893664][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.893664][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.893664][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.893664][ T10] [ 2271.895866][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2271.895866][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.895866][ T10] ipv6_find_idev+0x102/0x170 [ 2271.895866][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.895866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.895866][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.895866][ T10] netlink_unicast+0x449/0x710 [ 2271.895866][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.895866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.895866][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.895866][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.895866][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.895866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.895866][ T10] [ 2271.897559][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2271.897559][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.897559][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.897559][ T10] ipv6_find_idev+0x102/0x170 [ 2271.897559][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.897559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.897559][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.897559][ T10] netlink_unicast+0x449/0x710 [ 2271.897559][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.897559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.897559][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.897559][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.897559][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.897559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.897559][ T10] [ 2271.899431][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2271.899750][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2271.899750][ T10] netdev_get_by_index+0x5e/0x80 [ 2271.899750][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2271.899750][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2271.899750][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2271.899750][ T10] ipv6_add_addr+0x411/0x2000 [ 2271.899750][ T10] inet6_addr_add+0x30e/0xa40 [ 2271.899750][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2271.899750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.899750][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.899750][ T10] netlink_unicast+0x449/0x710 [ 2271.899750][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.899750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.899750][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.899750][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.899750][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.899750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.899750][ T10] [ 2271.902246][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2271.902246][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2271.902246][ T10] ipv6_find_idev+0x102/0x170 [ 2271.902246][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.902246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.902246][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.902246][ T10] netlink_unicast+0x449/0x710 [ 2271.902246][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.902246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.902246][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.902246][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.902246][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.902246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.902246][ T10] [ 2271.903947][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2271.903947][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2271.903947][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2271.903947][ T10] ipv6_find_idev+0x102/0x170 [ 2271.903947][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2271.903947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2271.903947][ T10] netlink_rcv_skb+0x130/0x360 [ 2271.903947][ T10] netlink_unicast+0x449/0x710 [ 2271.903947][ T10] netlink_sendmsg+0x723/0xbe0 [ 2271.903947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2271.903947][ T10] ___sys_sendmsg+0xee/0x170 [ 2271.903947][ T10] __sys_sendmsg+0xcd/0x170 [ 2271.903947][ T10] do_syscall_64+0xc6/0x1e0 [ 2271.903947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2271.903947][ T10] [ 2282.147776][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2282.148254][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2282.148254][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.148254][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.148254][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.148254][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.148254][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.148254][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.148254][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.148254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.148254][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.148254][ T10] netlink_unicast+0x449/0x710 [ 2282.148254][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.148254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.148254][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.148254][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.148254][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.148254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.148254][ T10] [ 2282.150281][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2282.150281][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.150281][ T10] ipv6_find_idev+0x102/0x170 [ 2282.150281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.150281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.150281][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.150281][ T10] netlink_unicast+0x449/0x710 [ 2282.150281][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.150281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.150281][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.150281][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.150281][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.150281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.150281][ T10] [ 2282.151802][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2282.151802][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.151802][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.151802][ T10] ipv6_find_idev+0x102/0x170 [ 2282.151802][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.151802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.151802][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.151802][ T10] netlink_unicast+0x449/0x710 [ 2282.151802][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.151802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.151802][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.151802][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.151802][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.151802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.151802][ T10] [ 2282.153488][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2282.153776][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2282.153776][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.153776][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.153776][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.153776][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.153776][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.153776][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.153776][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.153776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.153776][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.153776][ T10] netlink_unicast+0x449/0x710 [ 2282.153776][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.153776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.153776][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.153776][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.153776][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.153776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.153776][ T10] [ 2282.155747][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2282.155747][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.155747][ T10] ipv6_find_idev+0x102/0x170 [ 2282.155747][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.155747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.155747][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.155747][ T10] netlink_unicast+0x449/0x710 [ 2282.155747][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.155747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.155747][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.155747][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.155747][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.155747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.155747][ T10] [ 2282.157282][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2282.157282][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.157282][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.157282][ T10] ipv6_find_idev+0x102/0x170 [ 2282.157282][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.157282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.157282][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.157282][ T10] netlink_unicast+0x449/0x710 [ 2282.157282][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.157282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.157282][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.157282][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.157282][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.157282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.157282][ T10] [ 2282.158973][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2282.159249][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2282.159249][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.159249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.159249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.159249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.159249][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.159249][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.159249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.159249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.159249][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.159249][ T10] netlink_unicast+0x449/0x710 [ 2282.159249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.159249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.159249][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.159249][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.159249][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.159249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.159249][ T10] [ 2282.161213][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2282.161213][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.161213][ T10] ipv6_find_idev+0x102/0x170 [ 2282.161213][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.161213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.161213][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.161213][ T10] netlink_unicast+0x449/0x710 [ 2282.161213][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.161213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.161213][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.161213][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.161213][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.161213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.161213][ T10] [ 2282.162709][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2282.162709][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.162709][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.162709][ T10] ipv6_find_idev+0x102/0x170 [ 2282.162709][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.162709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.162709][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.162709][ T10] netlink_unicast+0x449/0x710 [ 2282.162709][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.162709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.162709][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.162709][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.162709][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.162709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.162709][ T10] [ 2282.164356][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2282.164619][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2282.164619][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.164619][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.164619][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.164619][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.164619][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.164619][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.164619][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.164619][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.164619][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.164619][ T10] netlink_unicast+0x449/0x710 [ 2282.164619][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.164619][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.164619][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.164619][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.164619][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.164619][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.164619][ T10] [ 2282.166572][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2282.166572][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.166572][ T10] ipv6_find_idev+0x102/0x170 [ 2282.166572][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.166572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.166572][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.166572][ T10] netlink_unicast+0x449/0x710 [ 2282.166572][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.166572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.166572][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.166572][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.166572][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.166572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.166572][ T10] [ 2282.168053][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2282.168053][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.168053][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.168053][ T10] ipv6_find_idev+0x102/0x170 [ 2282.168053][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.168053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.168053][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.168053][ T10] netlink_unicast+0x449/0x710 [ 2282.168053][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.168053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.168053][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.168053][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.168053][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.168053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.168053][ T10] [ 2282.170111][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2282.170375][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2282.170375][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.170375][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.170375][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.170375][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.170375][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.170375][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.170375][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.170375][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.170375][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.170375][ T10] netlink_unicast+0x449/0x710 [ 2282.170375][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.170375][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.170375][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.170375][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.170375][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.170375][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.170375][ T10] [ 2282.172337][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2282.172337][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.172337][ T10] ipv6_find_idev+0x102/0x170 [ 2282.172337][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.172337][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.172337][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.172337][ T10] netlink_unicast+0x449/0x710 [ 2282.172337][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.172337][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.172337][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.172337][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.172337][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.172337][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.172337][ T10] [ 2282.173853][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2282.173853][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.173853][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.173853][ T10] ipv6_find_idev+0x102/0x170 [ 2282.173853][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.173853][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.173853][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.173853][ T10] netlink_unicast+0x449/0x710 [ 2282.173853][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.173853][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.173853][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.173853][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.173853][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.173853][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.173853][ T10] [ 2282.175545][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2282.175865][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2282.175865][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.175865][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.175865][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.175865][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.175865][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.175865][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.175865][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.175865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.175865][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.175865][ T10] netlink_unicast+0x449/0x710 [ 2282.175865][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.175865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.175865][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.175865][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.175865][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.175865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.175865][ T10] [ 2282.177864][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2282.177864][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.177864][ T10] ipv6_find_idev+0x102/0x170 [ 2282.177864][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.177864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.177864][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.177864][ T10] netlink_unicast+0x449/0x710 [ 2282.177864][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.177864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.177864][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.177864][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.177864][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.177864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.177864][ T10] [ 2282.179597][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2282.179597][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.179597][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.179597][ T10] ipv6_find_idev+0x102/0x170 [ 2282.179597][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.179597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.179597][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.179597][ T10] netlink_unicast+0x449/0x710 [ 2282.179597][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.179597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.179597][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.179597][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.179597][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.179597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.179597][ T10] [ 2282.181521][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2282.181837][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2282.181837][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.181837][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.181837][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.181837][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.181837][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.181837][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.181837][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.181837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.181837][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.181837][ T10] netlink_unicast+0x449/0x710 [ 2282.181837][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.181837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.181837][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.181837][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.181837][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.181837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.181837][ T10] [ 2282.183990][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2282.183990][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.183990][ T10] ipv6_find_idev+0x102/0x170 [ 2282.183990][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.183990][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.183990][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.183990][ T10] netlink_unicast+0x449/0x710 [ 2282.183990][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.183990][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.183990][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.183990][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.183990][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.183990][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.183990][ T10] [ 2282.185743][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2282.185743][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.185743][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.185743][ T10] ipv6_find_idev+0x102/0x170 [ 2282.185743][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.185743][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.185743][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.185743][ T10] netlink_unicast+0x449/0x710 [ 2282.185743][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.185743][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.185743][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.185743][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.185743][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.185743][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.185743][ T10] [ 2282.187669][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2282.187939][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2282.187939][ T10] netdev_get_by_index+0x5e/0x80 [ 2282.187939][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2282.187939][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2282.187939][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2282.187939][ T10] ipv6_add_addr+0x411/0x2000 [ 2282.187939][ T10] inet6_addr_add+0x30e/0xa40 [ 2282.187939][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.187939][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.187939][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.187939][ T10] netlink_unicast+0x449/0x710 [ 2282.187939][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.187939][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.187939][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.187939][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.187939][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.187939][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.187939][ T10] [ 2282.190203][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2282.190203][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2282.190203][ T10] ipv6_find_idev+0x102/0x170 [ 2282.190203][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.190203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.190203][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.190203][ T10] netlink_unicast+0x449/0x710 [ 2282.190203][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.190203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.190203][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.190203][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.190203][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.190203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.190203][ T10] [ 2282.191890][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2282.191890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2282.191890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2282.191890][ T10] ipv6_find_idev+0x102/0x170 [ 2282.191890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.191890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.191890][ T10] netlink_rcv_skb+0x130/0x360 [ 2282.191890][ T10] netlink_unicast+0x449/0x710 [ 2282.191890][ T10] netlink_sendmsg+0x723/0xbe0 [ 2282.191890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2282.191890][ T10] ___sys_sendmsg+0xee/0x170 [ 2282.191890][ T10] __sys_sendmsg+0xcd/0x170 [ 2282.191890][ T10] do_syscall_64+0xc6/0x1e0 [ 2282.191890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.191890][ T10] [ 2292.395662][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2292.395986][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2292.395986][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.395986][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.395986][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.395986][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.395986][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.395986][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.395986][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.395986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.395986][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.395986][ T10] netlink_unicast+0x449/0x710 [ 2292.395986][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.395986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.395986][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.395986][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.395986][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.395986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.395986][ T10] [ 2292.398003][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2292.398003][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.398003][ T10] ipv6_find_idev+0x102/0x170 [ 2292.398003][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.398003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.398003][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.398003][ T10] netlink_unicast+0x449/0x710 [ 2292.398003][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.398003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.398003][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.398003][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.398003][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.398003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.398003][ T10] [ 2292.399574][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2292.399574][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.399574][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.399574][ T10] ipv6_find_idev+0x102/0x170 [ 2292.399574][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.399574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.399574][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.399574][ T10] netlink_unicast+0x449/0x710 [ 2292.399574][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.399574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.399574][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.399574][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.399574][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.399574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.399574][ T10] [ 2292.401267][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2292.401534][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2292.401534][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.401534][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.401534][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.401534][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.401534][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.401534][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.401534][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.401534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.401534][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.401534][ T10] netlink_unicast+0x449/0x710 [ 2292.401534][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.401534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.401534][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.401534][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.401534][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.401534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.401534][ T10] [ 2292.403522][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2292.403522][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.403522][ T10] ipv6_find_idev+0x102/0x170 [ 2292.403522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.403522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.403522][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.403522][ T10] netlink_unicast+0x449/0x710 [ 2292.403522][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.403522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.403522][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.403522][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.403522][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.403522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.403522][ T10] [ 2292.405196][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2292.405196][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.405196][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.405196][ T10] ipv6_find_idev+0x102/0x170 [ 2292.405196][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.405196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.405196][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.405196][ T10] netlink_unicast+0x449/0x710 [ 2292.405196][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.405196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.405196][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.405196][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.405196][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.405196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.405196][ T10] [ 2292.406989][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2292.407315][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2292.407315][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.407315][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.407315][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.407315][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.407315][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.407315][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.407315][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.407315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.407315][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.407315][ T10] netlink_unicast+0x449/0x710 [ 2292.407315][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.407315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.407315][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.407315][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.407315][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.407315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.407315][ T10] [ 2292.409539][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2292.409539][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.409539][ T10] ipv6_find_idev+0x102/0x170 [ 2292.409539][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.409539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.409539][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.409539][ T10] netlink_unicast+0x449/0x710 [ 2292.409539][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.409539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.409539][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.409539][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.409539][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.409539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.409539][ T10] [ 2292.411180][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2292.411180][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.411180][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.411180][ T10] ipv6_find_idev+0x102/0x170 [ 2292.411180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.411180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.411180][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.411180][ T10] netlink_unicast+0x449/0x710 [ 2292.411180][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.411180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.411180][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.411180][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.411180][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.411180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.411180][ T10] [ 2292.412957][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2292.413225][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2292.413225][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.413225][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.413225][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.413225][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.413225][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.413225][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.413225][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.413225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.413225][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.413225][ T10] netlink_unicast+0x449/0x710 [ 2292.413225][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.413225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.413225][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.413225][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.413225][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.413225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.413225][ T10] [ 2292.415255][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2292.415255][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.415255][ T10] ipv6_find_idev+0x102/0x170 [ 2292.415255][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.415255][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.415255][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.415255][ T10] netlink_unicast+0x449/0x710 [ 2292.415255][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.415255][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.415255][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.415255][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.415255][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.415255][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.415255][ T10] [ 2292.416776][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2292.416776][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.416776][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.416776][ T10] ipv6_find_idev+0x102/0x170 [ 2292.416776][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.416776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.416776][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.416776][ T10] netlink_unicast+0x449/0x710 [ 2292.416776][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.416776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.416776][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.416776][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.416776][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.416776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.416776][ T10] [ 2292.418888][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2292.419161][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2292.419161][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.419161][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.419161][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.419161][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.419161][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.419161][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.419161][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.419161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.419161][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.419161][ T10] netlink_unicast+0x449/0x710 [ 2292.419161][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.419161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.419161][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.419161][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.419161][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.419161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.419161][ T10] [ 2292.421138][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2292.421138][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.421138][ T10] ipv6_find_idev+0x102/0x170 [ 2292.421138][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.421138][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.421138][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.421138][ T10] netlink_unicast+0x449/0x710 [ 2292.421138][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.421138][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.421138][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.421138][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.421138][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.421138][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.421138][ T10] [ 2292.422674][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2292.422674][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.422674][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.422674][ T10] ipv6_find_idev+0x102/0x170 [ 2292.422674][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.422674][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.422674][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.422674][ T10] netlink_unicast+0x449/0x710 [ 2292.422674][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.422674][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.422674][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.422674][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.422674][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.422674][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.422674][ T10] [ 2292.424395][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2292.424663][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2292.424663][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.424663][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.424663][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.424663][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.424663][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.424663][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.424663][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.424663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.424663][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.424663][ T10] netlink_unicast+0x449/0x710 [ 2292.424663][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.424663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.424663][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.424663][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.424663][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.424663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.424663][ T10] [ 2292.426625][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2292.426625][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.426625][ T10] ipv6_find_idev+0x102/0x170 [ 2292.426625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.426625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.426625][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.426625][ T10] netlink_unicast+0x449/0x710 [ 2292.426625][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.426625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.426625][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.426625][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.426625][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.426625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.426625][ T10] [ 2292.428320][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2292.428320][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.428320][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.428320][ T10] ipv6_find_idev+0x102/0x170 [ 2292.428320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.428320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.428320][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.428320][ T10] netlink_unicast+0x449/0x710 [ 2292.428320][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.428320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.428320][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.428320][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.428320][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.428320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.428320][ T10] [ 2292.430172][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2292.430435][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2292.430435][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.430435][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.430435][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.430435][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.430435][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.430435][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.430435][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.430435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.430435][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.430435][ T10] netlink_unicast+0x449/0x710 [ 2292.430435][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.430435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.430435][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.430435][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.430435][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.430435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.430435][ T10] [ 2292.432595][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2292.432595][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.432595][ T10] ipv6_find_idev+0x102/0x170 [ 2292.432595][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.432595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.432595][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.432595][ T10] netlink_unicast+0x449/0x710 [ 2292.432595][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.432595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.432595][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.432595][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.432595][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.432595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.432595][ T10] [ 2292.434286][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2292.434286][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.434286][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.434286][ T10] ipv6_find_idev+0x102/0x170 [ 2292.434286][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.434286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.434286][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.434286][ T10] netlink_unicast+0x449/0x710 [ 2292.434286][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.434286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.434286][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.434286][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.434286][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.434286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.434286][ T10] [ 2292.436261][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2292.436525][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2292.436525][ T10] netdev_get_by_index+0x5e/0x80 [ 2292.436525][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2292.436525][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2292.436525][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2292.436525][ T10] ipv6_add_addr+0x411/0x2000 [ 2292.436525][ T10] inet6_addr_add+0x30e/0xa40 [ 2292.436525][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.436525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.436525][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.436525][ T10] netlink_unicast+0x449/0x710 [ 2292.436525][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.436525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.436525][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.436525][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.436525][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.436525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.436525][ T10] [ 2292.438711][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2292.438711][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2292.438711][ T10] ipv6_find_idev+0x102/0x170 [ 2292.438711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.438711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.438711][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.438711][ T10] netlink_unicast+0x449/0x710 [ 2292.438711][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.438711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.438711][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.438711][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.438711][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.438711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.438711][ T10] [ 2292.440420][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2292.440420][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2292.440420][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2292.440420][ T10] ipv6_find_idev+0x102/0x170 [ 2292.440420][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.440420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.440420][ T10] netlink_rcv_skb+0x130/0x360 [ 2292.440420][ T10] netlink_unicast+0x449/0x710 [ 2292.440420][ T10] netlink_sendmsg+0x723/0xbe0 [ 2292.440420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2292.440420][ T10] ___sys_sendmsg+0xee/0x170 [ 2292.440420][ T10] __sys_sendmsg+0xcd/0x170 [ 2292.440420][ T10] do_syscall_64+0xc6/0x1e0 [ 2292.440420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.440420][ T10] [ 2302.603755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2302.604178][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2302.604178][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.604178][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.604178][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.604178][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.604178][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.604178][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.604178][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.604178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.604178][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.604178][ T10] netlink_unicast+0x449/0x710 [ 2302.604178][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.604178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.604178][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.604178][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.604178][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.604178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.604178][ T10] [ 2302.606228][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2302.606228][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.606228][ T10] ipv6_find_idev+0x102/0x170 [ 2302.606228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.606228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.606228][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.606228][ T10] netlink_unicast+0x449/0x710 [ 2302.606228][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.606228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.606228][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.606228][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.606228][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.606228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.606228][ T10] [ 2302.607769][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2302.607769][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.607769][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.607769][ T10] ipv6_find_idev+0x102/0x170 [ 2302.607769][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.607769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.607769][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.607769][ T10] netlink_unicast+0x449/0x710 [ 2302.607769][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.607769][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.607769][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.607769][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.607769][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.607769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.607769][ T10] [ 2302.609462][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2302.609746][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2302.609746][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.609746][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.609746][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.609746][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.609746][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.609746][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.609746][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.609746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.609746][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.609746][ T10] netlink_unicast+0x449/0x710 [ 2302.609746][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.609746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.609746][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.609746][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.609746][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.609746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.609746][ T10] [ 2302.611764][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2302.611764][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.611764][ T10] ipv6_find_idev+0x102/0x170 [ 2302.611764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.611764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.611764][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.611764][ T10] netlink_unicast+0x449/0x710 [ 2302.611764][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.611764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.611764][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.611764][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.611764][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.611764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.611764][ T10] [ 2302.613442][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2302.613442][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.613442][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.613442][ T10] ipv6_find_idev+0x102/0x170 [ 2302.613442][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.613442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.613442][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.613442][ T10] netlink_unicast+0x449/0x710 [ 2302.613442][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.613442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.613442][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.613442][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.613442][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.613442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.613442][ T10] [ 2302.615278][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2302.615572][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2302.615572][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.615572][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.615572][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.615572][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.615572][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.615572][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.615572][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.615572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.615572][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.615572][ T10] netlink_unicast+0x449/0x710 [ 2302.615572][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.615572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.615572][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.615572][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.615572][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.615572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.615572][ T10] [ 2302.617758][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2302.617758][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.617758][ T10] ipv6_find_idev+0x102/0x170 [ 2302.617758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.617758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.617758][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.617758][ T10] netlink_unicast+0x449/0x710 [ 2302.617758][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.617758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.617758][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.617758][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.617758][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.617758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.617758][ T10] [ 2302.619440][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2302.619440][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.619440][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.619440][ T10] ipv6_find_idev+0x102/0x170 [ 2302.619440][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.619440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.619440][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.619440][ T10] netlink_unicast+0x449/0x710 [ 2302.619440][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.619440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.619440][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.619440][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.619440][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.619440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.619440][ T10] [ 2302.621272][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2302.621557][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2302.621557][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.621557][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.621557][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.621557][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.621557][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.621557][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.621557][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.621557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.621557][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.621557][ T10] netlink_unicast+0x449/0x710 [ 2302.621557][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.621557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.621557][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.621557][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.621557][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.621557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.621557][ T10] [ 2302.623732][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2302.623732][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.623732][ T10] ipv6_find_idev+0x102/0x170 [ 2302.623732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.623732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.623732][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.623732][ T10] netlink_unicast+0x449/0x710 [ 2302.623732][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.623732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.623732][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.623732][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.623732][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.623732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.623732][ T10] [ 2302.625408][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2302.625408][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.625408][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.625408][ T10] ipv6_find_idev+0x102/0x170 [ 2302.625408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.625408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.625408][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.625408][ T10] netlink_unicast+0x449/0x710 [ 2302.625408][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.625408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.625408][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.625408][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.625408][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.625408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.625408][ T10] [ 2302.627581][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2302.627902][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2302.627902][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.627902][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.627902][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.627902][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.627902][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.627902][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.627902][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.627902][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.627902][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.627902][ T10] netlink_unicast+0x449/0x710 [ 2302.627902][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.627902][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.627902][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.627902][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.627902][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.627902][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.627902][ T10] [ 2302.629858][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2302.629858][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.629858][ T10] ipv6_find_idev+0x102/0x170 [ 2302.629858][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.629858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.629858][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.629858][ T10] netlink_unicast+0x449/0x710 [ 2302.629858][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.629858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.629858][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.629858][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.629858][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.629858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.629858][ T10] [ 2302.631367][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2302.631367][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.631367][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.631367][ T10] ipv6_find_idev+0x102/0x170 [ 2302.631367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.631367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.631367][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.631367][ T10] netlink_unicast+0x449/0x710 [ 2302.631367][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.631367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.631367][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.631367][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.631367][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.631367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.631367][ T10] [ 2302.633057][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2302.633319][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2302.633319][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.633319][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.633319][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.633319][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.633319][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.633319][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.633319][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.633319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.633319][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.633319][ T10] netlink_unicast+0x449/0x710 [ 2302.633319][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.633319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.633319][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.633319][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.633319][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.633319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.633319][ T10] [ 2302.635417][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2302.635417][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.635417][ T10] ipv6_find_idev+0x102/0x170 [ 2302.635417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.635417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.635417][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.635417][ T10] netlink_unicast+0x449/0x710 [ 2302.635417][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.635417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.635417][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.635417][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.635417][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.635417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.635417][ T10] [ 2302.637111][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2302.637111][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.637111][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.637111][ T10] ipv6_find_idev+0x102/0x170 [ 2302.637111][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.637111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.637111][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.637111][ T10] netlink_unicast+0x449/0x710 [ 2302.637111][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.637111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.637111][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.637111][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.637111][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.637111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.637111][ T10] [ 2302.639048][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2302.639316][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2302.639316][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.639316][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.639316][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.639316][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.639316][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.639316][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.639316][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.639316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.639316][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.639316][ T10] netlink_unicast+0x449/0x710 [ 2302.639316][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.639316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.639316][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.639316][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.639316][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.639316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.639316][ T10] [ 2302.641463][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2302.641463][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.641463][ T10] ipv6_find_idev+0x102/0x170 [ 2302.641463][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.641463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.641463][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.641463][ T10] netlink_unicast+0x449/0x710 [ 2302.641463][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.641463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.641463][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.641463][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.641463][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.641463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.641463][ T10] [ 2302.643103][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2302.643103][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.643103][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.643103][ T10] ipv6_find_idev+0x102/0x170 [ 2302.643103][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.643103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.643103][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.643103][ T10] netlink_unicast+0x449/0x710 [ 2302.643103][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.643103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.643103][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.643103][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.643103][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.643103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.643103][ T10] [ 2302.645045][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2302.645305][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2302.645305][ T10] netdev_get_by_index+0x5e/0x80 [ 2302.645305][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2302.645305][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2302.645305][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2302.645305][ T10] ipv6_add_addr+0x411/0x2000 [ 2302.645305][ T10] inet6_addr_add+0x30e/0xa40 [ 2302.645305][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.645305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.645305][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.645305][ T10] netlink_unicast+0x449/0x710 [ 2302.645305][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.645305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.645305][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.645305][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.645305][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.645305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.645305][ T10] [ 2302.647515][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2302.647515][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2302.647515][ T10] ipv6_find_idev+0x102/0x170 [ 2302.647515][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.647515][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.647515][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.647515][ T10] netlink_unicast+0x449/0x710 [ 2302.647515][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.647515][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.647515][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.647515][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.647515][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.647515][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.647515][ T10] [ 2302.649213][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2302.649213][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2302.649213][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2302.649213][ T10] ipv6_find_idev+0x102/0x170 [ 2302.649213][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.649213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.649213][ T10] netlink_rcv_skb+0x130/0x360 [ 2302.649213][ T10] netlink_unicast+0x449/0x710 [ 2302.649213][ T10] netlink_sendmsg+0x723/0xbe0 [ 2302.649213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2302.649213][ T10] ___sys_sendmsg+0xee/0x170 [ 2302.649213][ T10] __sys_sendmsg+0xcd/0x170 [ 2302.649213][ T10] do_syscall_64+0xc6/0x1e0 [ 2302.649213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.649213][ T10] [ 2312.747751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2312.748198][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2312.748198][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.748198][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.748198][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.748198][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.748198][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.748198][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.748198][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.748198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.748198][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.748198][ T10] netlink_unicast+0x449/0x710 [ 2312.748198][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.748198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.748198][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.748198][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.748198][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.748198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.748198][ T10] [ 2312.750317][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2312.750317][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.750317][ T10] ipv6_find_idev+0x102/0x170 [ 2312.750317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.750317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.750317][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.750317][ T10] netlink_unicast+0x449/0x710 [ 2312.750317][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.750317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.750317][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.750317][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.750317][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.750317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.750317][ T10] [ 2312.751877][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2312.751877][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.751877][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.751877][ T10] ipv6_find_idev+0x102/0x170 [ 2312.751877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.751877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.751877][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.751877][ T10] netlink_unicast+0x449/0x710 [ 2312.751877][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.751877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.751877][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.751877][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.751877][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.751877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.751877][ T10] [ 2312.753570][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2312.753857][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2312.753857][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.753857][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.753857][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.753857][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.753857][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.753857][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.753857][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.753857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.753857][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.753857][ T10] netlink_unicast+0x449/0x710 [ 2312.753857][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.753857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.753857][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.753857][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.753857][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.753857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.753857][ T10] [ 2312.755857][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2312.755857][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.755857][ T10] ipv6_find_idev+0x102/0x170 [ 2312.755857][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.755857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.755857][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.755857][ T10] netlink_unicast+0x449/0x710 [ 2312.755857][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.755857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.755857][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.755857][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.755857][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.755857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.755857][ T10] [ 2312.757393][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2312.757393][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.757393][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.757393][ T10] ipv6_find_idev+0x102/0x170 [ 2312.757393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.757393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.757393][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.757393][ T10] netlink_unicast+0x449/0x710 [ 2312.757393][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.757393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.757393][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.757393][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.757393][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.757393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.757393][ T10] [ 2312.759096][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2312.759379][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2312.759379][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.759379][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.759379][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.759379][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.759379][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.759379][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.759379][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.759379][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.759379][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.759379][ T10] netlink_unicast+0x449/0x710 [ 2312.759379][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.759379][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.759379][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.759379][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.759379][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.759379][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.759379][ T10] [ 2312.761371][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2312.761371][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.761371][ T10] ipv6_find_idev+0x102/0x170 [ 2312.761371][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.761371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.761371][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.761371][ T10] netlink_unicast+0x449/0x710 [ 2312.761371][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.761371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.761371][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.761371][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.761371][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.761371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.761371][ T10] [ 2312.762904][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2312.762904][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.762904][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.762904][ T10] ipv6_find_idev+0x102/0x170 [ 2312.762904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.762904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.762904][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.762904][ T10] netlink_unicast+0x449/0x710 [ 2312.762904][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.762904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.762904][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.762904][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.762904][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.762904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.762904][ T10] [ 2312.764577][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2312.765301][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2312.765301][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.765301][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.765301][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.765301][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.765301][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.765301][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.765301][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.765301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.765301][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.765301][ T10] netlink_unicast+0x449/0x710 [ 2312.765301][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.765301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.765301][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.765301][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.765301][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.765301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.765301][ T10] [ 2312.767269][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2312.767269][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.767269][ T10] ipv6_find_idev+0x102/0x170 [ 2312.767269][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.767269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.767269][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.767269][ T10] netlink_unicast+0x449/0x710 [ 2312.767269][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.767269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.767269][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.767269][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.767269][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.767269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.767269][ T10] [ 2312.768783][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2312.768783][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.768783][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.768783][ T10] ipv6_find_idev+0x102/0x170 [ 2312.768783][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.768783][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.768783][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.768783][ T10] netlink_unicast+0x449/0x710 [ 2312.768783][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.768783][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.768783][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.768783][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.768783][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.768783][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.768783][ T10] [ 2312.770493][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2312.770814][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2312.770814][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.770814][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.770814][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.770814][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.770814][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.770814][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.770814][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.770814][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.770814][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.770814][ T10] netlink_unicast+0x449/0x710 [ 2312.770814][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.770814][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.770814][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.770814][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.770814][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.770814][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.770814][ T10] [ 2312.772799][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2312.772799][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.772799][ T10] ipv6_find_idev+0x102/0x170 [ 2312.772799][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.772799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.772799][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.772799][ T10] netlink_unicast+0x449/0x710 [ 2312.772799][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.772799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.772799][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.772799][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.772799][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.772799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.772799][ T10] [ 2312.774332][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2312.774332][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.774332][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.774332][ T10] ipv6_find_idev+0x102/0x170 [ 2312.774332][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.774332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.774332][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.774332][ T10] netlink_unicast+0x449/0x710 [ 2312.774332][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.774332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.774332][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.774332][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.774332][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.774332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.774332][ T10] [ 2312.776035][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2312.776305][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2312.776305][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.776305][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.776305][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.776305][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.776305][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.776305][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.776305][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.776305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.776305][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.776305][ T10] netlink_unicast+0x449/0x710 [ 2312.776305][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.776305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.776305][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.776305][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.776305][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.776305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.776305][ T10] [ 2312.778338][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2312.778338][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.778338][ T10] ipv6_find_idev+0x102/0x170 [ 2312.778338][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.778338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.778338][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.778338][ T10] netlink_unicast+0x449/0x710 [ 2312.778338][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.778338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.778338][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.778338][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.778338][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.778338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.778338][ T10] [ 2312.780100][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2312.780100][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.780100][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.780100][ T10] ipv6_find_idev+0x102/0x170 [ 2312.780100][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.780100][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.780100][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.780100][ T10] netlink_unicast+0x449/0x710 [ 2312.780100][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.780100][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.780100][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.780100][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.780100][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.780100][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.780100][ T10] [ 2312.782069][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2312.782335][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2312.782335][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.782335][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.782335][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.782335][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.782335][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.782335][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.782335][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.782335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.782335][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.782335][ T10] netlink_unicast+0x449/0x710 [ 2312.782335][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.782335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.782335][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.782335][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.782335][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.782335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.782335][ T10] [ 2312.784479][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2312.784479][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.784479][ T10] ipv6_find_idev+0x102/0x170 [ 2312.784479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.784479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.784479][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.784479][ T10] netlink_unicast+0x449/0x710 [ 2312.784479][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.784479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.784479][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.784479][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.784479][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.784479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.784479][ T10] [ 2312.786155][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2312.786155][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.786155][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.786155][ T10] ipv6_find_idev+0x102/0x170 [ 2312.786155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.786155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.786155][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.786155][ T10] netlink_unicast+0x449/0x710 [ 2312.786155][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.786155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.786155][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.786155][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.786155][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.786155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.786155][ T10] [ 2312.788094][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2312.788367][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2312.788367][ T10] netdev_get_by_index+0x5e/0x80 [ 2312.788367][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2312.788367][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2312.788367][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2312.788367][ T10] ipv6_add_addr+0x411/0x2000 [ 2312.788367][ T10] inet6_addr_add+0x30e/0xa40 [ 2312.788367][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2312.788367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.788367][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.788367][ T10] netlink_unicast+0x449/0x710 [ 2312.788367][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.788367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.788367][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.788367][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.788367][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.788367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.788367][ T10] [ 2312.790572][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2312.790572][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2312.790572][ T10] ipv6_find_idev+0x102/0x170 [ 2312.790572][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.790572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.790572][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.790572][ T10] netlink_unicast+0x449/0x710 [ 2312.790572][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.790572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.790572][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.790572][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.790572][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.790572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.790572][ T10] [ 2312.792268][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2312.792268][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2312.792268][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2312.792268][ T10] ipv6_find_idev+0x102/0x170 [ 2312.792268][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2312.792268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2312.792268][ T10] netlink_rcv_skb+0x130/0x360 [ 2312.792268][ T10] netlink_unicast+0x449/0x710 [ 2312.792268][ T10] netlink_sendmsg+0x723/0xbe0 [ 2312.792268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2312.792268][ T10] ___sys_sendmsg+0xee/0x170 [ 2312.792268][ T10] __sys_sendmsg+0xcd/0x170 [ 2312.792268][ T10] do_syscall_64+0xc6/0x1e0 [ 2312.792268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2312.792268][ T10] [ 2322.867749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2322.868184][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2322.868184][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.868184][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.868184][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.868184][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.868184][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.868184][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.868184][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.868184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.868184][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.868184][ T10] netlink_unicast+0x449/0x710 [ 2322.868184][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.868184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.868184][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.868184][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.868184][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.868184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.868184][ T10] [ 2322.870215][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2322.870215][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.870215][ T10] ipv6_find_idev+0x102/0x170 [ 2322.870215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.870215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.870215][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.870215][ T10] netlink_unicast+0x449/0x710 [ 2322.870215][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.870215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.870215][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.870215][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.870215][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.870215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.870215][ T10] [ 2322.871743][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2322.871743][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.871743][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.871743][ T10] ipv6_find_idev+0x102/0x170 [ 2322.871743][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.871743][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.871743][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.871743][ T10] netlink_unicast+0x449/0x710 [ 2322.871743][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.871743][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.871743][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.871743][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.871743][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.871743][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.871743][ T10] [ 2322.873427][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2322.873716][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2322.873716][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.873716][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.873716][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.873716][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.873716][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.873716][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.873716][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.873716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.873716][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.873716][ T10] netlink_unicast+0x449/0x710 [ 2322.873716][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.873716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.873716][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.873716][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.873716][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.873716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.873716][ T10] [ 2322.875695][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2322.875695][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.875695][ T10] ipv6_find_idev+0x102/0x170 [ 2322.875695][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.875695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.875695][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.875695][ T10] netlink_unicast+0x449/0x710 [ 2322.875695][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.875695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.875695][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.875695][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.875695][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.875695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.875695][ T10] [ 2322.877236][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2322.877236][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.877236][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.877236][ T10] ipv6_find_idev+0x102/0x170 [ 2322.877236][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.877236][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.877236][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.877236][ T10] netlink_unicast+0x449/0x710 [ 2322.877236][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.877236][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.877236][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.877236][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.877236][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.877236][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.877236][ T10] [ 2322.878902][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2322.879179][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2322.879179][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.879179][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.879179][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.879179][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.879179][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.879179][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.879179][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.879179][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.879179][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.879179][ T10] netlink_unicast+0x449/0x710 [ 2322.879179][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.879179][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.879179][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.879179][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.879179][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.879179][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.879179][ T10] [ 2322.881151][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2322.881151][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.881151][ T10] ipv6_find_idev+0x102/0x170 [ 2322.881151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.881151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.881151][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.881151][ T10] netlink_unicast+0x449/0x710 [ 2322.881151][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.881151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.881151][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.881151][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.881151][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.881151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.881151][ T10] [ 2322.882676][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2322.882676][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.882676][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.882676][ T10] ipv6_find_idev+0x102/0x170 [ 2322.882676][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.882676][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.882676][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.882676][ T10] netlink_unicast+0x449/0x710 [ 2322.882676][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.882676][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.882676][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.882676][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.882676][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.882676][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.882676][ T10] [ 2322.884348][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2322.884610][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2322.884610][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.884610][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.884610][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.884610][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.884610][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.884610][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.884610][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.884610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.884610][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.884610][ T10] netlink_unicast+0x449/0x710 [ 2322.884610][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.884610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.884610][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.884610][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.884610][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.884610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.884610][ T10] [ 2322.886588][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2322.886588][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.886588][ T10] ipv6_find_idev+0x102/0x170 [ 2322.886588][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.886588][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.886588][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.886588][ T10] netlink_unicast+0x449/0x710 [ 2322.886588][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.886588][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.886588][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.886588][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.886588][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.886588][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.886588][ T10] [ 2322.888127][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2322.888127][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.888127][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.888127][ T10] ipv6_find_idev+0x102/0x170 [ 2322.888127][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.888127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.888127][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.888127][ T10] netlink_unicast+0x449/0x710 [ 2322.888127][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.888127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.888127][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.888127][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.888127][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.888127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.888127][ T10] [ 2322.890217][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2322.890481][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2322.890481][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.890481][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.890481][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.890481][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.890481][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.890481][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.890481][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.890481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.890481][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.890481][ T10] netlink_unicast+0x449/0x710 [ 2322.890481][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.890481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.890481][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.890481][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.890481][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.890481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.890481][ T10] [ 2322.892427][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2322.892427][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.892427][ T10] ipv6_find_idev+0x102/0x170 [ 2322.892427][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.892427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.892427][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.892427][ T10] netlink_unicast+0x449/0x710 [ 2322.892427][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.892427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.892427][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.892427][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.892427][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.892427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.892427][ T10] [ 2322.893976][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2322.893976][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.893976][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.893976][ T10] ipv6_find_idev+0x102/0x170 [ 2322.893976][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.893976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.893976][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.893976][ T10] netlink_unicast+0x449/0x710 [ 2322.893976][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.893976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.893976][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.893976][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.893976][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.893976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.893976][ T10] [ 2322.895703][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2322.895980][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2322.895980][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.895980][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.895980][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.895980][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.895980][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.895980][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.895980][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.895980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.895980][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.895980][ T10] netlink_unicast+0x449/0x710 [ 2322.895980][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.895980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.895980][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.895980][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.895980][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.895980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.895980][ T10] [ 2322.898172][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2322.898172][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.898172][ T10] ipv6_find_idev+0x102/0x170 [ 2322.898172][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.898172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.898172][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.898172][ T10] netlink_unicast+0x449/0x710 [ 2322.898172][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.898172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.898172][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.898172][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.898172][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.898172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.898172][ T10] [ 2322.899948][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2322.899948][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.899948][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.899948][ T10] ipv6_find_idev+0x102/0x170 [ 2322.899948][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.899948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.899948][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.899948][ T10] netlink_unicast+0x449/0x710 [ 2322.899948][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.899948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.899948][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.899948][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.899948][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.899948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.899948][ T10] [ 2322.901864][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2322.902138][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2322.902138][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.902138][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.902138][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.902138][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.902138][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.902138][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.902138][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.902138][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.902138][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.902138][ T10] netlink_unicast+0x449/0x710 [ 2322.902138][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.902138][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.902138][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.902138][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.902138][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.902138][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.902138][ T10] [ 2322.904348][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2322.904348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.904348][ T10] ipv6_find_idev+0x102/0x170 [ 2322.904348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.904348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.904348][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.904348][ T10] netlink_unicast+0x449/0x710 [ 2322.904348][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.904348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.904348][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.904348][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.904348][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.904348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.904348][ T10] [ 2322.905998][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2322.905998][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.905998][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.905998][ T10] ipv6_find_idev+0x102/0x170 [ 2322.905998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.905998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.905998][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.905998][ T10] netlink_unicast+0x449/0x710 [ 2322.905998][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.905998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.905998][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.905998][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.905998][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.905998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.905998][ T10] [ 2322.908007][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2322.908270][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2322.908270][ T10] netdev_get_by_index+0x5e/0x80 [ 2322.908270][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2322.908270][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2322.908270][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2322.908270][ T10] ipv6_add_addr+0x411/0x2000 [ 2322.908270][ T10] inet6_addr_add+0x30e/0xa40 [ 2322.908270][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2322.908270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.908270][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.908270][ T10] netlink_unicast+0x449/0x710 [ 2322.908270][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.908270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.908270][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.908270][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.908270][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.908270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.908270][ T10] [ 2322.910503][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2322.910503][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2322.910503][ T10] ipv6_find_idev+0x102/0x170 [ 2322.910503][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.910503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.910503][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.910503][ T10] netlink_unicast+0x449/0x710 [ 2322.910503][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.910503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.910503][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.910503][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.910503][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.910503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.910503][ T10] [ 2322.912227][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2322.912227][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2322.912227][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2322.912227][ T10] ipv6_find_idev+0x102/0x170 [ 2322.912227][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2322.912227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2322.912227][ T10] netlink_rcv_skb+0x130/0x360 [ 2322.912227][ T10] netlink_unicast+0x449/0x710 [ 2322.912227][ T10] netlink_sendmsg+0x723/0xbe0 [ 2322.912227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2322.912227][ T10] ___sys_sendmsg+0xee/0x170 [ 2322.912227][ T10] __sys_sendmsg+0xcd/0x170 [ 2322.912227][ T10] do_syscall_64+0xc6/0x1e0 [ 2322.912227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2322.912227][ T10] [ 2332.979738][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2332.980063][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2332.980063][ T10] netdev_get_by_index+0x5e/0x80 [ 2332.980063][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2332.980063][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2332.980063][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2332.980063][ T10] ipv6_add_addr+0x411/0x2000 [ 2332.980063][ T10] inet6_addr_add+0x30e/0xa40 [ 2332.980063][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2332.980063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.980063][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.980063][ T10] netlink_unicast+0x449/0x710 [ 2332.980063][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.980063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.980063][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.980063][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.980063][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.980063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.980063][ T10] [ 2332.982091][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2332.982091][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2332.982091][ T10] ipv6_find_idev+0x102/0x170 [ 2332.982091][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2332.982091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.982091][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.982091][ T10] netlink_unicast+0x449/0x710 [ 2332.982091][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.982091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.982091][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.982091][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.982091][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.982091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.982091][ T10] [ 2332.983628][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2332.983628][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2332.983628][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2332.983628][ T10] ipv6_find_idev+0x102/0x170 [ 2332.983628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2332.983628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.983628][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.983628][ T10] netlink_unicast+0x449/0x710 [ 2332.983628][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.983628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.983628][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.983628][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.983628][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.983628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.983628][ T10] [ 2332.985313][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2332.985579][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2332.985579][ T10] netdev_get_by_index+0x5e/0x80 [ 2332.985579][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2332.985579][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2332.985579][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2332.985579][ T10] ipv6_add_addr+0x411/0x2000 [ 2332.985579][ T10] inet6_addr_add+0x30e/0xa40 [ 2332.985579][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2332.985579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.985579][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.985579][ T10] netlink_unicast+0x449/0x710 [ 2332.985579][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.985579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.985579][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.985579][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.985579][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.985579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.985579][ T10] [ 2332.987575][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2332.987575][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2332.987575][ T10] ipv6_find_idev+0x102/0x170 [ 2332.987575][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2332.987575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.987575][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.987575][ T10] netlink_unicast+0x449/0x710 [ 2332.987575][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.987575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.987575][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.987575][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.987575][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.987575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.987575][ T10] [ 2332.989151][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2332.989151][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2332.989151][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2332.989151][ T10] ipv6_find_idev+0x102/0x170 [ 2332.989151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2332.989151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.989151][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.989151][ T10] netlink_unicast+0x449/0x710 [ 2332.989151][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.989151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.989151][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.989151][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.989151][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.989151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.989151][ T10] [ 2332.990844][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2332.991111][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2332.991111][ T10] netdev_get_by_index+0x5e/0x80 [ 2332.991111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2332.991111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2332.991111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2332.991111][ T10] ipv6_add_addr+0x411/0x2000 [ 2332.991111][ T10] inet6_addr_add+0x30e/0xa40 [ 2332.991111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2332.991111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.991111][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.991111][ T10] netlink_unicast+0x449/0x710 [ 2332.991111][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.991111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.991111][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.991111][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.991111][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.991111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.991111][ T10] [ 2332.993126][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2332.993126][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2332.993126][ T10] ipv6_find_idev+0x102/0x170 [ 2332.993126][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2332.993126][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.993126][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.993126][ T10] netlink_unicast+0x449/0x710 [ 2332.993126][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.993126][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.993126][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.993126][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.993126][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.993126][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.993126][ T10] [ 2332.994672][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2332.994672][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2332.994672][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2332.994672][ T10] ipv6_find_idev+0x102/0x170 [ 2332.994672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2332.994672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.994672][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.994672][ T10] netlink_unicast+0x449/0x710 [ 2332.994672][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.994672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.994672][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.994672][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.994672][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.994672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.994672][ T10] [ 2332.996355][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2332.996622][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2332.996622][ T10] netdev_get_by_index+0x5e/0x80 [ 2332.996622][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2332.996622][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2332.996622][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2332.996622][ T10] ipv6_add_addr+0x411/0x2000 [ 2332.996622][ T10] inet6_addr_add+0x30e/0xa40 [ 2332.996622][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2332.996622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.996622][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.996622][ T10] netlink_unicast+0x449/0x710 [ 2332.996622][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.996622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.996622][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.996622][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.996622][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.996622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.996622][ T10] [ 2332.998710][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2332.998710][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2332.998710][ T10] ipv6_find_idev+0x102/0x170 [ 2332.998710][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2332.998710][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2332.998710][ T10] netlink_rcv_skb+0x130/0x360 [ 2332.998710][ T10] netlink_unicast+0x449/0x710 [ 2332.998710][ T10] netlink_sendmsg+0x723/0xbe0 [ 2332.998710][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2332.998710][ T10] ___sys_sendmsg+0xee/0x170 [ 2332.998710][ T10] __sys_sendmsg+0xcd/0x170 [ 2332.998710][ T10] do_syscall_64+0xc6/0x1e0 [ 2332.998710][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2332.998710][ T10] [ 2333.000258][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2333.000258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2333.000258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2333.000258][ T10] ipv6_find_idev+0x102/0x170 [ 2333.000258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.000258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.000258][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.000258][ T10] netlink_unicast+0x449/0x710 [ 2333.000258][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.000258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.000258][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.000258][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.000258][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.000258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.000258][ T10] [ 2333.002175][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2333.002437][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2333.002437][ T10] netdev_get_by_index+0x5e/0x80 [ 2333.002437][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2333.002437][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2333.002437][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2333.002437][ T10] ipv6_add_addr+0x411/0x2000 [ 2333.002437][ T10] inet6_addr_add+0x30e/0xa40 [ 2333.002437][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2333.002437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.002437][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.002437][ T10] netlink_unicast+0x449/0x710 [ 2333.002437][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.002437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.002437][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.002437][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.002437][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.002437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.002437][ T10] [ 2333.004644][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2333.004644][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2333.004644][ T10] ipv6_find_idev+0x102/0x170 [ 2333.004644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.004644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.004644][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.004644][ T10] netlink_unicast+0x449/0x710 [ 2333.004644][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.004644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.004644][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.004644][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.004644][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.004644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.004644][ T10] [ 2333.006319][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2333.006319][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2333.006319][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2333.006319][ T10] ipv6_find_idev+0x102/0x170 [ 2333.006319][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.006319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.006319][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.006319][ T10] netlink_unicast+0x449/0x710 [ 2333.006319][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.006319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.006319][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.006319][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.006319][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.006319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.006319][ T10] [ 2333.008467][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2333.008785][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2333.008785][ T10] netdev_get_by_index+0x5e/0x80 [ 2333.008785][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2333.008785][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2333.008785][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2333.008785][ T10] ipv6_add_addr+0x411/0x2000 [ 2333.008785][ T10] inet6_addr_add+0x30e/0xa40 [ 2333.008785][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2333.008785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.008785][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.008785][ T10] netlink_unicast+0x449/0x710 [ 2333.008785][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.008785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.008785][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.008785][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.008785][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.008785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.008785][ T10] [ 2333.010789][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2333.010789][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2333.010789][ T10] ipv6_find_idev+0x102/0x170 [ 2333.010789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.010789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.010789][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.010789][ T10] netlink_unicast+0x449/0x710 [ 2333.010789][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.010789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.010789][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.010789][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.010789][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.010789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.010789][ T10] [ 2333.012392][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2333.012392][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2333.012392][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2333.012392][ T10] ipv6_find_idev+0x102/0x170 [ 2333.012392][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.012392][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.012392][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.012392][ T10] netlink_unicast+0x449/0x710 [ 2333.012392][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.012392][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.012392][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.012392][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.012392][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.012392][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.012392][ T10] [ 2333.014128][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2333.014394][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2333.014394][ T10] netdev_get_by_index+0x5e/0x80 [ 2333.014394][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2333.014394][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2333.014394][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2333.014394][ T10] ipv6_add_addr+0x411/0x2000 [ 2333.014394][ T10] inet6_addr_add+0x30e/0xa40 [ 2333.014394][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2333.014394][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.014394][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.014394][ T10] netlink_unicast+0x449/0x710 [ 2333.014394][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.014394][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.014394][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.014394][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.014394][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.014394][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.014394][ T10] [ 2333.016368][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2333.016368][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2333.016368][ T10] ipv6_find_idev+0x102/0x170 [ 2333.016368][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.016368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.016368][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.016368][ T10] netlink_unicast+0x449/0x710 [ 2333.016368][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.016368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.016368][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.016368][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.016368][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.016368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.016368][ T10] [ 2333.017892][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2333.017892][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2333.017892][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2333.017892][ T10] ipv6_find_idev+0x102/0x170 [ 2333.017892][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.017892][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.017892][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.017892][ T10] netlink_unicast+0x449/0x710 [ 2333.017892][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.017892][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.017892][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.017892][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.017892][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.017892][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.017892][ T10] [ 2333.019586][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2333.019904][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2333.019904][ T10] netdev_get_by_index+0x5e/0x80 [ 2333.019904][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2333.019904][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2333.019904][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2333.019904][ T10] ipv6_add_addr+0x411/0x2000 [ 2333.019904][ T10] inet6_addr_add+0x30e/0xa40 [ 2333.019904][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2333.019904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.019904][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.019904][ T10] netlink_unicast+0x449/0x710 [ 2333.019904][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.019904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.019904][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.019904][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.019904][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.019904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.019904][ T10] [ 2333.021949][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2333.021949][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2333.021949][ T10] ipv6_find_idev+0x102/0x170 [ 2333.021949][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.021949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.021949][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.021949][ T10] netlink_unicast+0x449/0x710 [ 2333.021949][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.021949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.021949][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.021949][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.021949][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.021949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.021949][ T10] [ 2333.023653][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2333.023653][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2333.023653][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2333.023653][ T10] ipv6_find_idev+0x102/0x170 [ 2333.023653][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.023653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.023653][ T10] netlink_rcv_skb+0x130/0x360 [ 2333.023653][ T10] netlink_unicast+0x449/0x710 [ 2333.023653][ T10] netlink_sendmsg+0x723/0xbe0 [ 2333.023653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2333.023653][ T10] ___sys_sendmsg+0xee/0x170 [ 2333.023653][ T10] __sys_sendmsg+0xcd/0x170 [ 2333.023653][ T10] do_syscall_64+0xc6/0x1e0 [ 2333.023653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.023653][ T10] [ 2343.107763][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2343.108185][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2343.108185][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.108185][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.108185][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.108185][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.108185][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.108185][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.108185][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.108185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.108185][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.108185][ T10] netlink_unicast+0x449/0x710 [ 2343.108185][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.108185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.108185][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.108185][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.108185][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.108185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.108185][ T10] [ 2343.110245][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2343.110245][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.110245][ T10] ipv6_find_idev+0x102/0x170 [ 2343.110245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.110245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.110245][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.110245][ T10] netlink_unicast+0x449/0x710 [ 2343.110245][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.110245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.110245][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.110245][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.110245][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.110245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.110245][ T10] [ 2343.111783][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2343.111783][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.111783][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.111783][ T10] ipv6_find_idev+0x102/0x170 [ 2343.111783][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.111783][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.111783][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.111783][ T10] netlink_unicast+0x449/0x710 [ 2343.111783][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.111783][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.111783][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.111783][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.111783][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.111783][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.111783][ T10] [ 2343.113472][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2343.113766][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2343.113766][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.113766][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.113766][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.113766][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.113766][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.113766][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.113766][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.113766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.113766][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.113766][ T10] netlink_unicast+0x449/0x710 [ 2343.113766][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.113766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.113766][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.113766][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.113766][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.113766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.113766][ T10] [ 2343.115755][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2343.115755][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.115755][ T10] ipv6_find_idev+0x102/0x170 [ 2343.115755][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.115755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.115755][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.115755][ T10] netlink_unicast+0x449/0x710 [ 2343.115755][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.115755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.115755][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.115755][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.115755][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.115755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.115755][ T10] [ 2343.117280][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2343.117280][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.117280][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.117280][ T10] ipv6_find_idev+0x102/0x170 [ 2343.117280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.117280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.117280][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.117280][ T10] netlink_unicast+0x449/0x710 [ 2343.117280][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.117280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.117280][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.117280][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.117280][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.117280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.117280][ T10] [ 2343.118998][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2343.119264][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2343.119264][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.119264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.119264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.119264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.119264][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.119264][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.119264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.119264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.119264][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.119264][ T10] netlink_unicast+0x449/0x710 [ 2343.119264][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.119264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.119264][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.119264][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.119264][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.119264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.119264][ T10] [ 2343.121235][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2343.121235][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.121235][ T10] ipv6_find_idev+0x102/0x170 [ 2343.121235][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.121235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.121235][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.121235][ T10] netlink_unicast+0x449/0x710 [ 2343.121235][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.121235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.121235][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.121235][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.121235][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.121235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.121235][ T10] [ 2343.122723][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2343.122723][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.122723][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.122723][ T10] ipv6_find_idev+0x102/0x170 [ 2343.122723][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.122723][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.122723][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.122723][ T10] netlink_unicast+0x449/0x710 [ 2343.122723][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.122723][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.122723][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.122723][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.122723][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.122723][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.122723][ T10] [ 2343.124416][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2343.124687][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2343.124687][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.124687][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.124687][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.124687][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.124687][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.124687][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.124687][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.124687][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.124687][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.124687][ T10] netlink_unicast+0x449/0x710 [ 2343.124687][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.124687][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.124687][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.124687][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.124687][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.124687][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.124687][ T10] [ 2343.126652][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2343.126652][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.126652][ T10] ipv6_find_idev+0x102/0x170 [ 2343.126652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.126652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.126652][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.126652][ T10] netlink_unicast+0x449/0x710 [ 2343.126652][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.126652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.126652][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.126652][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.126652][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.126652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.126652][ T10] [ 2343.128160][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2343.128160][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.128160][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.128160][ T10] ipv6_find_idev+0x102/0x170 [ 2343.128160][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.128160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.128160][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.128160][ T10] netlink_unicast+0x449/0x710 [ 2343.128160][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.128160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.128160][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.128160][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.128160][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.128160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.128160][ T10] [ 2343.129883][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2343.130220][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2343.130220][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.130220][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.130220][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.130220][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.130220][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.130220][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.130220][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.130220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.130220][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.130220][ T10] netlink_unicast+0x449/0x710 [ 2343.130220][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.130220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.130220][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.130220][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.130220][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.130220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.130220][ T10] [ 2343.132197][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2343.132197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.132197][ T10] ipv6_find_idev+0x102/0x170 [ 2343.132197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.132197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.132197][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.132197][ T10] netlink_unicast+0x449/0x710 [ 2343.132197][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.132197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.132197][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.132197][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.132197][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.132197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.132197][ T10] [ 2343.133712][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2343.133712][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.133712][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.133712][ T10] ipv6_find_idev+0x102/0x170 [ 2343.133712][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.133712][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.133712][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.133712][ T10] netlink_unicast+0x449/0x710 [ 2343.133712][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.133712][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.133712][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.133712][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.133712][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.133712][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.133712][ T10] [ 2343.135533][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2343.135849][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2343.135849][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.135849][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.135849][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.135849][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.135849][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.135849][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.135849][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.135849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.135849][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.135849][ T10] netlink_unicast+0x449/0x710 [ 2343.135849][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.135849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.135849][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.135849][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.135849][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.135849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.135849][ T10] [ 2343.138098][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2343.138098][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.138098][ T10] ipv6_find_idev+0x102/0x170 [ 2343.138098][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.138098][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.138098][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.138098][ T10] netlink_unicast+0x449/0x710 [ 2343.138098][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.138098][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.138098][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.138098][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.138098][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.138098][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.138098][ T10] [ 2343.139809][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2343.139809][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.139809][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.139809][ T10] ipv6_find_idev+0x102/0x170 [ 2343.139809][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.139809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.139809][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.139809][ T10] netlink_unicast+0x449/0x710 [ 2343.139809][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.139809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.139809][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.139809][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.139809][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.139809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.139809][ T10] [ 2343.141791][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2343.142058][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2343.142058][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.142058][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.142058][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.142058][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.142058][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.142058][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.142058][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.142058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.142058][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.142058][ T10] netlink_unicast+0x449/0x710 [ 2343.142058][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.142058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.142058][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.142058][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.142058][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.142058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.142058][ T10] [ 2343.144148][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2343.144148][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.144148][ T10] ipv6_find_idev+0x102/0x170 [ 2343.144148][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.144148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.144148][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.144148][ T10] netlink_unicast+0x449/0x710 [ 2343.144148][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.144148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.144148][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.144148][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.144148][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.144148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.144148][ T10] [ 2343.145849][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2343.145849][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.145849][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.145849][ T10] ipv6_find_idev+0x102/0x170 [ 2343.145849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.145849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.145849][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.145849][ T10] netlink_unicast+0x449/0x710 [ 2343.145849][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.145849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.145849][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.145849][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.145849][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.145849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.145849][ T10] [ 2343.147836][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2343.148099][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2343.148099][ T10] netdev_get_by_index+0x5e/0x80 [ 2343.148099][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2343.148099][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2343.148099][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2343.148099][ T10] ipv6_add_addr+0x411/0x2000 [ 2343.148099][ T10] inet6_addr_add+0x30e/0xa40 [ 2343.148099][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.148099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.148099][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.148099][ T10] netlink_unicast+0x449/0x710 [ 2343.148099][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.148099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.148099][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.148099][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.148099][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.148099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.148099][ T10] [ 2343.150274][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2343.150274][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2343.150274][ T10] ipv6_find_idev+0x102/0x170 [ 2343.150274][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.150274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.150274][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.150274][ T10] netlink_unicast+0x449/0x710 [ 2343.150274][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.150274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.150274][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.150274][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.150274][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.150274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.150274][ T10] [ 2343.151982][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2343.151982][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2343.151982][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2343.151982][ T10] ipv6_find_idev+0x102/0x170 [ 2343.151982][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.151982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.151982][ T10] netlink_rcv_skb+0x130/0x360 [ 2343.151982][ T10] netlink_unicast+0x449/0x710 [ 2343.151982][ T10] netlink_sendmsg+0x723/0xbe0 [ 2343.151982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2343.151982][ T10] ___sys_sendmsg+0xee/0x170 [ 2343.151982][ T10] __sys_sendmsg+0xcd/0x170 [ 2343.151982][ T10] do_syscall_64+0xc6/0x1e0 [ 2343.151982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.151982][ T10] [ 2353.276656][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2353.276977][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2353.276977][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.276977][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.276977][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.276977][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.276977][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.276977][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.276977][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.276977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.276977][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.276977][ T10] netlink_unicast+0x449/0x710 [ 2353.276977][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.276977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.276977][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.276977][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.276977][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.276977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.276977][ T10] [ 2353.278989][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2353.278989][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.278989][ T10] ipv6_find_idev+0x102/0x170 [ 2353.278989][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.278989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.278989][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.278989][ T10] netlink_unicast+0x449/0x710 [ 2353.278989][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.278989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.278989][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.278989][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.278989][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.278989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.278989][ T10] [ 2353.280525][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2353.280525][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.280525][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.280525][ T10] ipv6_find_idev+0x102/0x170 [ 2353.280525][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.280525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.280525][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.280525][ T10] netlink_unicast+0x449/0x710 [ 2353.280525][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.280525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.280525][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.280525][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.280525][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.280525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.280525][ T10] [ 2353.282199][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2353.282467][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2353.282467][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.282467][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.282467][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.282467][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.282467][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.282467][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.282467][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.282467][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.282467][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.282467][ T10] netlink_unicast+0x449/0x710 [ 2353.282467][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.282467][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.282467][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.282467][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.282467][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.282467][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.282467][ T10] [ 2353.284507][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2353.284507][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.284507][ T10] ipv6_find_idev+0x102/0x170 [ 2353.284507][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.284507][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.284507][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.284507][ T10] netlink_unicast+0x449/0x710 [ 2353.284507][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.284507][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.284507][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.284507][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.284507][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.284507][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.284507][ T10] [ 2353.286022][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2353.286022][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.286022][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.286022][ T10] ipv6_find_idev+0x102/0x170 [ 2353.286022][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.286022][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.286022][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.286022][ T10] netlink_unicast+0x449/0x710 [ 2353.286022][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.286022][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.286022][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.286022][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.286022][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.286022][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.286022][ T10] [ 2353.287724][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2353.287984][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2353.287984][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.287984][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.287984][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.287984][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.287984][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.287984][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.287984][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.287984][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.287984][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.287984][ T10] netlink_unicast+0x449/0x710 [ 2353.287984][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.287984][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.287984][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.287984][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.287984][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.287984][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.287984][ T10] [ 2353.290089][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2353.290089][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.290089][ T10] ipv6_find_idev+0x102/0x170 [ 2353.290089][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.290089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.290089][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.290089][ T10] netlink_unicast+0x449/0x710 [ 2353.290089][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.290089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.290089][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.290089][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.290089][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.290089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.290089][ T10] [ 2353.291793][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2353.291793][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.291793][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.291793][ T10] ipv6_find_idev+0x102/0x170 [ 2353.291793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.291793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.291793][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.291793][ T10] netlink_unicast+0x449/0x710 [ 2353.291793][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.291793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.291793][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.291793][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.291793][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.291793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.291793][ T10] [ 2353.293588][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2353.293872][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2353.293872][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.293872][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.293872][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.293872][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.293872][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.293872][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.293872][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.293872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.293872][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.293872][ T10] netlink_unicast+0x449/0x710 [ 2353.293872][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.293872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.293872][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.293872][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.293872][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.293872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.293872][ T10] [ 2353.295949][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2353.295949][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.295949][ T10] ipv6_find_idev+0x102/0x170 [ 2353.295949][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.295949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.295949][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.295949][ T10] netlink_unicast+0x449/0x710 [ 2353.295949][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.295949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.295949][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.295949][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.295949][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.295949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.295949][ T10] [ 2353.297579][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2353.297579][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.297579][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.297579][ T10] ipv6_find_idev+0x102/0x170 [ 2353.297579][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.297579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.297579][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.297579][ T10] netlink_unicast+0x449/0x710 [ 2353.297579][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.297579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.297579][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.297579][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.297579][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.297579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.297579][ T10] [ 2353.299375][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2353.299643][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2353.299643][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.299643][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.299643][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.299643][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.299643][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.299643][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.299643][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.299643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.299643][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.299643][ T10] netlink_unicast+0x449/0x710 [ 2353.299643][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.299643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.299643][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.299643][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.299643][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.299643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.299643][ T10] [ 2353.301840][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2353.301840][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.301840][ T10] ipv6_find_idev+0x102/0x170 [ 2353.301840][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.301840][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.301840][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.301840][ T10] netlink_unicast+0x449/0x710 [ 2353.301840][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.301840][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.301840][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.301840][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.301840][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.301840][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.301840][ T10] [ 2353.303574][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2353.303574][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.303574][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.303574][ T10] ipv6_find_idev+0x102/0x170 [ 2353.303574][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.303574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.303574][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.303574][ T10] netlink_unicast+0x449/0x710 [ 2353.303574][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.303574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.303574][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.303574][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.303574][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.303574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.303574][ T10] [ 2353.305794][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2353.306518][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2353.306518][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.306518][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.306518][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.306518][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.306518][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.306518][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.306518][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.306518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.306518][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.306518][ T10] netlink_unicast+0x449/0x710 [ 2353.306518][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.306518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.306518][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.306518][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.306518][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.306518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.306518][ T10] [ 2353.308475][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2353.308475][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.308475][ T10] ipv6_find_idev+0x102/0x170 [ 2353.308475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.308475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.308475][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.308475][ T10] netlink_unicast+0x449/0x710 [ 2353.308475][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.308475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.308475][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.308475][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.308475][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.308475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.308475][ T10] [ 2353.309995][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2353.309995][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.309995][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.309995][ T10] ipv6_find_idev+0x102/0x170 [ 2353.309995][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.309995][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.309995][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.309995][ T10] netlink_unicast+0x449/0x710 [ 2353.309995][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.309995][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.309995][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.309995][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.309995][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.309995][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.309995][ T10] [ 2353.311706][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2353.311969][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2353.311969][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.311969][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.311969][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.311969][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.311969][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.311969][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.311969][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.311969][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.311969][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.311969][ T10] netlink_unicast+0x449/0x710 [ 2353.311969][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.311969][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.311969][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.311969][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.311969][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.311969][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.311969][ T10] [ 2353.314012][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2353.314012][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.314012][ T10] ipv6_find_idev+0x102/0x170 [ 2353.314012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.314012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.314012][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.314012][ T10] netlink_unicast+0x449/0x710 [ 2353.314012][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.314012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.314012][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.314012][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.314012][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.314012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.314012][ T10] [ 2353.315766][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2353.315766][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.315766][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.315766][ T10] ipv6_find_idev+0x102/0x170 [ 2353.315766][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.315766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.315766][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.315766][ T10] netlink_unicast+0x449/0x710 [ 2353.315766][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.315766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.315766][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.315766][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.315766][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.315766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.315766][ T10] [ 2353.317590][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2353.317927][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2353.317927][ T10] netdev_get_by_index+0x5e/0x80 [ 2353.317927][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2353.317927][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2353.317927][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2353.317927][ T10] ipv6_add_addr+0x411/0x2000 [ 2353.317927][ T10] inet6_addr_add+0x30e/0xa40 [ 2353.317927][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.317927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.317927][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.317927][ T10] netlink_unicast+0x449/0x710 [ 2353.317927][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.317927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.317927][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.317927][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.317927][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.317927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.317927][ T10] [ 2353.320007][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2353.320007][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2353.320007][ T10] ipv6_find_idev+0x102/0x170 [ 2353.320007][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.320007][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.320007][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.320007][ T10] netlink_unicast+0x449/0x710 [ 2353.320007][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.320007][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.320007][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.320007][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.320007][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.320007][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.320007][ T10] [ 2353.321639][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2353.321639][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2353.321639][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2353.321639][ T10] ipv6_find_idev+0x102/0x170 [ 2353.321639][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.321639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.321639][ T10] netlink_rcv_skb+0x130/0x360 [ 2353.321639][ T10] netlink_unicast+0x449/0x710 [ 2353.321639][ T10] netlink_sendmsg+0x723/0xbe0 [ 2353.321639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2353.321639][ T10] ___sys_sendmsg+0xee/0x170 [ 2353.321639][ T10] __sys_sendmsg+0xcd/0x170 [ 2353.321639][ T10] do_syscall_64+0xc6/0x1e0 [ 2353.321639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.321639][ T10] [ 2363.380719][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2363.381032][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2363.381032][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.381032][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.381032][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.381032][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.381032][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.381032][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.381032][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.381032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.381032][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.381032][ T10] netlink_unicast+0x449/0x710 [ 2363.381032][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.381032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.381032][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.381032][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.381032][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.381032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.381032][ T10] [ 2363.383014][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2363.383014][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.383014][ T10] ipv6_find_idev+0x102/0x170 [ 2363.383014][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.383014][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.383014][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.383014][ T10] netlink_unicast+0x449/0x710 [ 2363.383014][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.383014][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.383014][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.383014][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.383014][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.383014][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.383014][ T10] [ 2363.384540][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2363.384540][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.384540][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.384540][ T10] ipv6_find_idev+0x102/0x170 [ 2363.384540][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.384540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.384540][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.384540][ T10] netlink_unicast+0x449/0x710 [ 2363.384540][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.384540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.384540][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.384540][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.384540][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.384540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.384540][ T10] [ 2363.386264][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2363.386542][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2363.386542][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.386542][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.386542][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.386542][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.386542][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.386542][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.386542][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.386542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.386542][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.386542][ T10] netlink_unicast+0x449/0x710 [ 2363.386542][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.386542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.386542][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.386542][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.386542][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.386542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.386542][ T10] [ 2363.388543][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2363.388543][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.388543][ T10] ipv6_find_idev+0x102/0x170 [ 2363.388543][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.388543][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.388543][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.388543][ T10] netlink_unicast+0x449/0x710 [ 2363.388543][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.388543][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.388543][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.388543][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.388543][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.388543][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.388543][ T10] [ 2363.390106][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2363.390106][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.390106][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.390106][ T10] ipv6_find_idev+0x102/0x170 [ 2363.390106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.390106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.390106][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.390106][ T10] netlink_unicast+0x449/0x710 [ 2363.390106][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.390106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.390106][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.390106][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.390106][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.390106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.390106][ T10] [ 2363.391846][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2363.392110][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2363.392110][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.392110][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.392110][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.392110][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.392110][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.392110][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.392110][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.392110][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.392110][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.392110][ T10] netlink_unicast+0x449/0x710 [ 2363.392110][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.392110][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.392110][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.392110][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.392110][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.392110][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.392110][ T10] [ 2363.394106][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2363.394106][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.394106][ T10] ipv6_find_idev+0x102/0x170 [ 2363.394106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.394106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.394106][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.394106][ T10] netlink_unicast+0x449/0x710 [ 2363.394106][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.394106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.394106][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.394106][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.394106][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.394106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.394106][ T10] [ 2363.395659][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2363.395659][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.395659][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.395659][ T10] ipv6_find_idev+0x102/0x170 [ 2363.395659][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.395659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.395659][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.395659][ T10] netlink_unicast+0x449/0x710 [ 2363.395659][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.395659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.395659][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.395659][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.395659][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.395659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.395659][ T10] [ 2363.397449][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2363.397792][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2363.397792][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.397792][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.397792][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.397792][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.397792][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.397792][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.397792][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.397792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.397792][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.397792][ T10] netlink_unicast+0x449/0x710 [ 2363.397792][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.397792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.397792][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.397792][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.397792][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.397792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.397792][ T10] [ 2363.399901][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2363.399901][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.399901][ T10] ipv6_find_idev+0x102/0x170 [ 2363.399901][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.399901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.399901][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.399901][ T10] netlink_unicast+0x449/0x710 [ 2363.399901][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.399901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.399901][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.399901][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.399901][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.399901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.399901][ T10] [ 2363.401633][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2363.401633][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.401633][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.401633][ T10] ipv6_find_idev+0x102/0x170 [ 2363.401633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.401633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.401633][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.401633][ T10] netlink_unicast+0x449/0x710 [ 2363.401633][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.401633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.401633][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.401633][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.401633][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.401633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.401633][ T10] [ 2363.403681][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2363.403947][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2363.403947][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.403947][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.403947][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.403947][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.403947][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.403947][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.403947][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.403947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.403947][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.403947][ T10] netlink_unicast+0x449/0x710 [ 2363.403947][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.403947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.403947][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.403947][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.403947][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.403947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.403947][ T10] [ 2363.406146][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2363.406146][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.406146][ T10] ipv6_find_idev+0x102/0x170 [ 2363.406146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.406146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.406146][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.406146][ T10] netlink_unicast+0x449/0x710 [ 2363.406146][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.406146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.406146][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.406146][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.406146][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.406146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.406146][ T10] [ 2363.407875][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2363.407875][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.407875][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.407875][ T10] ipv6_find_idev+0x102/0x170 [ 2363.407875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.407875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.407875][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.407875][ T10] netlink_unicast+0x449/0x710 [ 2363.407875][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.407875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.407875][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.407875][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.407875][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.407875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.407875][ T10] [ 2363.409878][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2363.410144][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2363.410144][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.410144][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.410144][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.410144][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.410144][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.410144][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.410144][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.410144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.410144][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.410144][ T10] netlink_unicast+0x449/0x710 [ 2363.410144][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.410144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.410144][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.410144][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.410144][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.410144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.410144][ T10] [ 2363.412248][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2363.412248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.412248][ T10] ipv6_find_idev+0x102/0x170 [ 2363.412248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.412248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.412248][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.412248][ T10] netlink_unicast+0x449/0x710 [ 2363.412248][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.412248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.412248][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.412248][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.412248][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.412248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.412248][ T10] [ 2363.413862][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2363.413862][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.413862][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.413862][ T10] ipv6_find_idev+0x102/0x170 [ 2363.413862][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.413862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.413862][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.413862][ T10] netlink_unicast+0x449/0x710 [ 2363.413862][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.413862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.413862][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.413862][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.413862][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.413862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.413862][ T10] [ 2363.415679][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2363.415947][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2363.415947][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.415947][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.415947][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.415947][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.415947][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.415947][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.415947][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.415947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.415947][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.415947][ T10] netlink_unicast+0x449/0x710 [ 2363.415947][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.415947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.415947][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.415947][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.415947][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.415947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.415947][ T10] [ 2363.418164][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2363.418164][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.418164][ T10] ipv6_find_idev+0x102/0x170 [ 2363.418164][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.418164][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.418164][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.418164][ T10] netlink_unicast+0x449/0x710 [ 2363.418164][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.418164][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.418164][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.418164][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.418164][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.418164][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.418164][ T10] [ 2363.419868][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2363.419868][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.419868][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.419868][ T10] ipv6_find_idev+0x102/0x170 [ 2363.419868][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.419868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.419868][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.419868][ T10] netlink_unicast+0x449/0x710 [ 2363.419868][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.419868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.419868][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.419868][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.419868][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.419868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.419868][ T10] [ 2363.421711][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2363.421973][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2363.421973][ T10] netdev_get_by_index+0x5e/0x80 [ 2363.421973][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2363.421973][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2363.421973][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2363.421973][ T10] ipv6_add_addr+0x411/0x2000 [ 2363.421973][ T10] inet6_addr_add+0x30e/0xa40 [ 2363.421973][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.421973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.421973][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.421973][ T10] netlink_unicast+0x449/0x710 [ 2363.421973][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.421973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.421973][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.421973][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.421973][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.421973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.421973][ T10] [ 2363.424131][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2363.424131][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2363.424131][ T10] ipv6_find_idev+0x102/0x170 [ 2363.424131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.424131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.424131][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.424131][ T10] netlink_unicast+0x449/0x710 [ 2363.424131][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.424131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.424131][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.424131][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.424131][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.424131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.424131][ T10] [ 2363.425851][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2363.425851][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2363.425851][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2363.425851][ T10] ipv6_find_idev+0x102/0x170 [ 2363.425851][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.425851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.425851][ T10] netlink_rcv_skb+0x130/0x360 [ 2363.425851][ T10] netlink_unicast+0x449/0x710 [ 2363.425851][ T10] netlink_sendmsg+0x723/0xbe0 [ 2363.425851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2363.425851][ T10] ___sys_sendmsg+0xee/0x170 [ 2363.425851][ T10] __sys_sendmsg+0xcd/0x170 [ 2363.425851][ T10] do_syscall_64+0xc6/0x1e0 [ 2363.425851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.425851][ T10] [ 2373.556661][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2373.556978][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2373.556978][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.556978][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.556978][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.556978][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.556978][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.556978][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.556978][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.556978][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.556978][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.556978][ T10] netlink_unicast+0x449/0x710 [ 2373.556978][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.556978][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.556978][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.556978][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.556978][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.556978][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.556978][ T10] [ 2373.559035][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2373.559035][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.559035][ T10] ipv6_find_idev+0x102/0x170 [ 2373.559035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.559035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.559035][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.559035][ T10] netlink_unicast+0x449/0x710 [ 2373.559035][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.559035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.559035][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.559035][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.559035][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.559035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.559035][ T10] [ 2373.560606][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2373.560606][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.560606][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.560606][ T10] ipv6_find_idev+0x102/0x170 [ 2373.560606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.560606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.560606][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.560606][ T10] netlink_unicast+0x449/0x710 [ 2373.560606][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.560606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.560606][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.560606][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.560606][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.560606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.560606][ T10] [ 2373.562296][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2373.562561][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2373.562561][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.562561][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.562561][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.562561][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.562561][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.562561][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.562561][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.562561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.562561][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.562561][ T10] netlink_unicast+0x449/0x710 [ 2373.562561][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.562561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.562561][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.562561][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.562561][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.562561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.562561][ T10] [ 2373.564549][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2373.564549][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.564549][ T10] ipv6_find_idev+0x102/0x170 [ 2373.564549][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.564549][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.564549][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.564549][ T10] netlink_unicast+0x449/0x710 [ 2373.564549][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.564549][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.564549][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.564549][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.564549][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.564549][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.564549][ T10] [ 2373.566102][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2373.566102][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.566102][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.566102][ T10] ipv6_find_idev+0x102/0x170 [ 2373.566102][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.566102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.566102][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.566102][ T10] netlink_unicast+0x449/0x710 [ 2373.566102][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.566102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.566102][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.566102][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.566102][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.566102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.566102][ T10] [ 2373.567764][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2373.568033][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2373.568033][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.568033][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.568033][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.568033][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.568033][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.568033][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.568033][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.568033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.568033][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.568033][ T10] netlink_unicast+0x449/0x710 [ 2373.568033][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.568033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.568033][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.568033][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.568033][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.568033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.568033][ T10] [ 2373.570026][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2373.570026][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.570026][ T10] ipv6_find_idev+0x102/0x170 [ 2373.570026][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.570026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.570026][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.570026][ T10] netlink_unicast+0x449/0x710 [ 2373.570026][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.570026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.570026][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.570026][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.570026][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.570026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.570026][ T10] [ 2373.571571][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2373.571571][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.571571][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.571571][ T10] ipv6_find_idev+0x102/0x170 [ 2373.571571][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.571571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.571571][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.571571][ T10] netlink_unicast+0x449/0x710 [ 2373.571571][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.571571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.571571][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.571571][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.571571][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.571571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.571571][ T10] [ 2373.573248][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2373.573516][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2373.573516][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.573516][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.573516][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.573516][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.573516][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.573516][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.573516][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.573516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.573516][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.573516][ T10] netlink_unicast+0x449/0x710 [ 2373.573516][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.573516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.573516][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.573516][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.573516][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.573516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.573516][ T10] [ 2373.575522][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2373.575522][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.575522][ T10] ipv6_find_idev+0x102/0x170 [ 2373.575522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.575522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.575522][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.575522][ T10] netlink_unicast+0x449/0x710 [ 2373.575522][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.575522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.575522][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.575522][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.575522][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.575522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.575522][ T10] [ 2373.577080][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2373.577080][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.577080][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.577080][ T10] ipv6_find_idev+0x102/0x170 [ 2373.577080][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.577080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.577080][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.577080][ T10] netlink_unicast+0x449/0x710 [ 2373.577080][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.577080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.577080][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.577080][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.577080][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.577080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.577080][ T10] [ 2373.579467][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2373.580082][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2373.580082][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.580082][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.580082][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.580082][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.580082][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.580082][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.580082][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.580082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.580082][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.580082][ T10] netlink_unicast+0x449/0x710 [ 2373.580082][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.580082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.580082][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.580082][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.580082][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.580082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.580082][ T10] [ 2373.582098][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2373.582098][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.582098][ T10] ipv6_find_idev+0x102/0x170 [ 2373.582098][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.582098][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.582098][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.582098][ T10] netlink_unicast+0x449/0x710 [ 2373.582098][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.582098][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.582098][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.582098][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.582098][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.582098][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.582098][ T10] [ 2373.583702][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2373.583702][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.583702][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.583702][ T10] ipv6_find_idev+0x102/0x170 [ 2373.583702][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.583702][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.583702][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.583702][ T10] netlink_unicast+0x449/0x710 [ 2373.583702][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.583702][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.583702][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.583702][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.583702][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.583702][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.583702][ T10] [ 2373.585563][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2373.585880][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2373.585880][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.585880][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.585880][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.585880][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.585880][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.585880][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.585880][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.585880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.585880][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.585880][ T10] netlink_unicast+0x449/0x710 [ 2373.585880][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.585880][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.585880][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.585880][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.585880][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.585880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.585880][ T10] [ 2373.587928][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2373.587928][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.587928][ T10] ipv6_find_idev+0x102/0x170 [ 2373.587928][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.587928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.587928][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.587928][ T10] netlink_unicast+0x449/0x710 [ 2373.587928][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.587928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.587928][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.587928][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.587928][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.587928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.587928][ T10] [ 2373.589521][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2373.589521][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.589521][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.589521][ T10] ipv6_find_idev+0x102/0x170 [ 2373.589521][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.589521][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.589521][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.589521][ T10] netlink_unicast+0x449/0x710 [ 2373.589521][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.589521][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.589521][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.589521][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.589521][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.589521][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.589521][ T10] [ 2373.591236][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2373.591500][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2373.591500][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.591500][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.591500][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.591500][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.591500][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.591500][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.591500][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.591500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.591500][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.591500][ T10] netlink_unicast+0x449/0x710 [ 2373.591500][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.591500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.591500][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.591500][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.591500][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.591500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.591500][ T10] [ 2373.593510][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2373.593510][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.593510][ T10] ipv6_find_idev+0x102/0x170 [ 2373.593510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.593510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.593510][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.593510][ T10] netlink_unicast+0x449/0x710 [ 2373.593510][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.593510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.593510][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.593510][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.593510][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.593510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.593510][ T10] [ 2373.595126][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2373.595126][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.595126][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.595126][ T10] ipv6_find_idev+0x102/0x170 [ 2373.595126][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.595126][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.595126][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.595126][ T10] netlink_unicast+0x449/0x710 [ 2373.595126][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.595126][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.595126][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.595126][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.595126][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.595126][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.595126][ T10] [ 2373.596970][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2373.597235][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2373.597235][ T10] netdev_get_by_index+0x5e/0x80 [ 2373.597235][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2373.597235][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2373.597235][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2373.597235][ T10] ipv6_add_addr+0x411/0x2000 [ 2373.597235][ T10] inet6_addr_add+0x30e/0xa40 [ 2373.597235][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2373.597235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.597235][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.597235][ T10] netlink_unicast+0x449/0x710 [ 2373.597235][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.597235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.597235][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.597235][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.597235][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.597235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.597235][ T10] [ 2373.599474][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2373.599474][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2373.599474][ T10] ipv6_find_idev+0x102/0x170 [ 2373.599474][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.599474][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.599474][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.599474][ T10] netlink_unicast+0x449/0x710 [ 2373.599474][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.599474][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.599474][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.599474][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.599474][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.599474][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.599474][ T10] [ 2373.601219][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2373.601219][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2373.601219][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2373.601219][ T10] ipv6_find_idev+0x102/0x170 [ 2373.601219][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2373.601219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2373.601219][ T10] netlink_rcv_skb+0x130/0x360 [ 2373.601219][ T10] netlink_unicast+0x449/0x710 [ 2373.601219][ T10] netlink_sendmsg+0x723/0xbe0 [ 2373.601219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2373.601219][ T10] ___sys_sendmsg+0xee/0x170 [ 2373.601219][ T10] __sys_sendmsg+0xcd/0x170 [ 2373.601219][ T10] do_syscall_64+0xc6/0x1e0 [ 2373.601219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2373.601219][ T10] [ 2383.659696][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2383.660180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2383.660180][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.660180][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.660180][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.660180][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.660180][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.660180][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.660180][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.660180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.660180][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.660180][ T10] netlink_unicast+0x449/0x710 [ 2383.660180][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.660180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.660180][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.660180][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.660180][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.660180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.660180][ T10] [ 2383.662330][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2383.662330][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.662330][ T10] ipv6_find_idev+0x102/0x170 [ 2383.662330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.662330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.662330][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.662330][ T10] netlink_unicast+0x449/0x710 [ 2383.662330][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.662330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.662330][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.662330][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.662330][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.662330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.662330][ T10] [ 2383.664097][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2383.664097][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.664097][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.664097][ T10] ipv6_find_idev+0x102/0x170 [ 2383.664097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.664097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.664097][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.664097][ T10] netlink_unicast+0x449/0x710 [ 2383.664097][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.664097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.664097][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.664097][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.664097][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.664097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.664097][ T10] [ 2383.666681][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2383.667102][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2383.667102][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.667102][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.667102][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.667102][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.667102][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.667102][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.667102][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.667102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.667102][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.667102][ T10] netlink_unicast+0x449/0x710 [ 2383.667102][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.667102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.667102][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.667102][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.667102][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.667102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.667102][ T10] [ 2383.670239][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2383.670239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.670239][ T10] ipv6_find_idev+0x102/0x170 [ 2383.670239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.670239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.670239][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.670239][ T10] netlink_unicast+0x449/0x710 [ 2383.670239][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.670239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.670239][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.670239][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.670239][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.670239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.670239][ T10] [ 2383.672531][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2383.672531][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.672531][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.672531][ T10] ipv6_find_idev+0x102/0x170 [ 2383.672531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.672531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.672531][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.672531][ T10] netlink_unicast+0x449/0x710 [ 2383.672531][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.672531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.672531][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.672531][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.672531][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.672531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.672531][ T10] [ 2383.675098][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2383.675489][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2383.675489][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.675489][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.675489][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.675489][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.675489][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.675489][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.675489][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.675489][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.675489][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.675489][ T10] netlink_unicast+0x449/0x710 [ 2383.675489][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.675489][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.675489][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.675489][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.675489][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.675489][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.675489][ T10] [ 2383.678973][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2383.678973][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.678973][ T10] ipv6_find_idev+0x102/0x170 [ 2383.678973][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.678973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.678973][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.678973][ T10] netlink_unicast+0x449/0x710 [ 2383.678973][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.678973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.678973][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.678973][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.678973][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.678973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.678973][ T10] [ 2383.681462][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2383.681462][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.681462][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.681462][ T10] ipv6_find_idev+0x102/0x170 [ 2383.681462][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.681462][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.681462][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.681462][ T10] netlink_unicast+0x449/0x710 [ 2383.681462][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.681462][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.681462][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.681462][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.681462][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.681462][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.681462][ T10] [ 2383.684627][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2383.685188][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2383.685188][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.685188][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.685188][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.685188][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.685188][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.685188][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.685188][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.685188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.685188][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.685188][ T10] netlink_unicast+0x449/0x710 [ 2383.685188][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.685188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.685188][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.685188][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.685188][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.685188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.685188][ T10] [ 2383.688347][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2383.688347][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.688347][ T10] ipv6_find_idev+0x102/0x170 [ 2383.688347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.688347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.688347][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.688347][ T10] netlink_unicast+0x449/0x710 [ 2383.688347][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.688347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.688347][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.688347][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.688347][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.688347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.688347][ T10] [ 2383.690998][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2383.690998][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.690998][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.690998][ T10] ipv6_find_idev+0x102/0x170 [ 2383.690998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.690998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.690998][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.690998][ T10] netlink_unicast+0x449/0x710 [ 2383.690998][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.690998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.690998][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.690998][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.690998][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.690998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.690998][ T10] [ 2383.693960][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2383.694381][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2383.694381][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.694381][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.694381][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.694381][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.694381][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.694381][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.694381][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.694381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.694381][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.694381][ T10] netlink_unicast+0x449/0x710 [ 2383.694381][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.694381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.694381][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.694381][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.694381][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.694381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.694381][ T10] [ 2383.697661][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2383.697661][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.697661][ T10] ipv6_find_idev+0x102/0x170 [ 2383.697661][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.697661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.697661][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.697661][ T10] netlink_unicast+0x449/0x710 [ 2383.697661][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.697661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.697661][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.697661][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.697661][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.697661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.697661][ T10] [ 2383.699916][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2383.699916][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.699916][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.699916][ T10] ipv6_find_idev+0x102/0x170 [ 2383.699916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.699916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.699916][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.699916][ T10] netlink_unicast+0x449/0x710 [ 2383.699916][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.699916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.699916][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.699916][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.699916][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.699916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.699916][ T10] [ 2383.702447][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2383.702966][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2383.702966][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.702966][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.702966][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.702966][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.702966][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.702966][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.702966][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.702966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.702966][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.702966][ T10] netlink_unicast+0x449/0x710 [ 2383.702966][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.702966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.702966][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.702966][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.702966][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.702966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.702966][ T10] [ 2383.706247][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2383.706247][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.706247][ T10] ipv6_find_idev+0x102/0x170 [ 2383.706247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.706247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.706247][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.706247][ T10] netlink_unicast+0x449/0x710 [ 2383.706247][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.706247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.706247][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.706247][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.706247][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.706247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.706247][ T10] [ 2383.708977][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2383.708977][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.708977][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.708977][ T10] ipv6_find_idev+0x102/0x170 [ 2383.708977][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.708977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.708977][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.708977][ T10] netlink_unicast+0x449/0x710 [ 2383.708977][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.708977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.708977][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.708977][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.708977][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.708977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.708977][ T10] [ 2383.711909][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2383.712426][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2383.712426][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.712426][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.712426][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.712426][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.712426][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.712426][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.712426][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.712426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.712426][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.712426][ T10] netlink_unicast+0x449/0x710 [ 2383.712426][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.712426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.712426][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.712426][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.712426][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.712426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.712426][ T10] [ 2383.715527][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2383.715527][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.715527][ T10] ipv6_find_idev+0x102/0x170 [ 2383.715527][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.715527][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.715527][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.715527][ T10] netlink_unicast+0x449/0x710 [ 2383.715527][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.715527][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.715527][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.715527][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.715527][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.715527][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.715527][ T10] [ 2383.717771][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2383.717771][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.717771][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.717771][ T10] ipv6_find_idev+0x102/0x170 [ 2383.717771][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.717771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.717771][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.717771][ T10] netlink_unicast+0x449/0x710 [ 2383.717771][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.717771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.717771][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.717771][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.717771][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.717771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.717771][ T10] [ 2383.720459][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2383.720968][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2383.720968][ T10] netdev_get_by_index+0x5e/0x80 [ 2383.720968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2383.720968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2383.720968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2383.720968][ T10] ipv6_add_addr+0x411/0x2000 [ 2383.720968][ T10] inet6_addr_add+0x30e/0xa40 [ 2383.720968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2383.720968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.720968][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.720968][ T10] netlink_unicast+0x449/0x710 [ 2383.720968][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.720968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.720968][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.720968][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.720968][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.720968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.720968][ T10] [ 2383.724461][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2383.724461][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2383.724461][ T10] ipv6_find_idev+0x102/0x170 [ 2383.724461][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.724461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.724461][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.724461][ T10] netlink_unicast+0x449/0x710 [ 2383.724461][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.724461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.724461][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.724461][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.724461][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.724461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.724461][ T10] [ 2383.727287][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2383.727287][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2383.727287][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2383.727287][ T10] ipv6_find_idev+0x102/0x170 [ 2383.727287][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2383.727287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2383.727287][ T10] netlink_rcv_skb+0x130/0x360 [ 2383.727287][ T10] netlink_unicast+0x449/0x710 [ 2383.727287][ T10] netlink_sendmsg+0x723/0xbe0 [ 2383.727287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2383.727287][ T10] ___sys_sendmsg+0xee/0x170 [ 2383.727287][ T10] __sys_sendmsg+0xcd/0x170 [ 2383.727287][ T10] do_syscall_64+0xc6/0x1e0 [ 2383.727287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2383.727287][ T10] [ 2393.883663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2393.884065][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2393.884065][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.884065][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.884065][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.884065][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.884065][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.884065][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.884065][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.884065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.884065][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.884065][ T10] netlink_unicast+0x449/0x710 [ 2393.884065][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.884065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.884065][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.884065][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.884065][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.884065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.884065][ T10] [ 2393.886080][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2393.886080][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.886080][ T10] ipv6_find_idev+0x102/0x170 [ 2393.886080][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.886080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.886080][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.886080][ T10] netlink_unicast+0x449/0x710 [ 2393.886080][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.886080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.886080][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.886080][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.886080][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.886080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.886080][ T10] [ 2393.887668][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2393.887668][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.887668][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.887668][ T10] ipv6_find_idev+0x102/0x170 [ 2393.887668][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.887668][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.887668][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.887668][ T10] netlink_unicast+0x449/0x710 [ 2393.887668][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.887668][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.887668][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.887668][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.887668][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.887668][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.887668][ T10] [ 2393.890053][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2393.890466][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2393.890466][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.890466][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.890466][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.890466][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.890466][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.890466][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.890466][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.890466][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.890466][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.890466][ T10] netlink_unicast+0x449/0x710 [ 2393.890466][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.890466][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.890466][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.890466][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.890466][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.890466][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.890466][ T10] [ 2393.892490][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2393.892490][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.892490][ T10] ipv6_find_idev+0x102/0x170 [ 2393.892490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.892490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.892490][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.892490][ T10] netlink_unicast+0x449/0x710 [ 2393.892490][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.892490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.892490][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.892490][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.892490][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.892490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.892490][ T10] [ 2393.894056][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2393.894056][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.894056][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.894056][ T10] ipv6_find_idev+0x102/0x170 [ 2393.894056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.894056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.894056][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.894056][ T10] netlink_unicast+0x449/0x710 [ 2393.894056][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.894056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.894056][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.894056][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.894056][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.894056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.894056][ T10] [ 2393.895767][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2393.896048][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2393.896048][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.896048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.896048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.896048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.896048][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.896048][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.896048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.896048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.896048][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.896048][ T10] netlink_unicast+0x449/0x710 [ 2393.896048][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.896048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.896048][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.896048][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.896048][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.896048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.896048][ T10] [ 2393.898055][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2393.898055][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.898055][ T10] ipv6_find_idev+0x102/0x170 [ 2393.898055][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.898055][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.898055][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.898055][ T10] netlink_unicast+0x449/0x710 [ 2393.898055][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.898055][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.898055][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.898055][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.898055][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.898055][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.898055][ T10] [ 2393.899598][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2393.899598][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.899598][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.899598][ T10] ipv6_find_idev+0x102/0x170 [ 2393.899598][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.899598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.899598][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.899598][ T10] netlink_unicast+0x449/0x710 [ 2393.899598][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.899598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.899598][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.899598][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.899598][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.899598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.899598][ T10] [ 2393.901333][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2393.901659][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2393.901659][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.901659][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.901659][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.901659][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.901659][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.901659][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.901659][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.901659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.901659][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.901659][ T10] netlink_unicast+0x449/0x710 [ 2393.901659][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.901659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.901659][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.901659][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.901659][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.901659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.901659][ T10] [ 2393.903683][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2393.903683][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.903683][ T10] ipv6_find_idev+0x102/0x170 [ 2393.903683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.903683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.903683][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.903683][ T10] netlink_unicast+0x449/0x710 [ 2393.903683][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.903683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.903683][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.903683][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.903683][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.903683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.903683][ T10] [ 2393.905240][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2393.905240][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.905240][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.905240][ T10] ipv6_find_idev+0x102/0x170 [ 2393.905240][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.905240][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.905240][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.905240][ T10] netlink_unicast+0x449/0x710 [ 2393.905240][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.905240][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.905240][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.905240][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.905240][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.905240][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.905240][ T10] [ 2393.907206][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2393.907595][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2393.907595][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.907595][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.907595][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.907595][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.907595][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.907595][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.907595][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.907595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.907595][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.907595][ T10] netlink_unicast+0x449/0x710 [ 2393.907595][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.907595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.907595][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.907595][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.907595][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.907595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.907595][ T10] [ 2393.909965][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2393.909965][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.909965][ T10] ipv6_find_idev+0x102/0x170 [ 2393.909965][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.909965][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.909965][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.909965][ T10] netlink_unicast+0x449/0x710 [ 2393.909965][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.909965][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.909965][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.909965][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.909965][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.909965][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.909965][ T10] [ 2393.911782][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2393.911782][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.911782][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.911782][ T10] ipv6_find_idev+0x102/0x170 [ 2393.911782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.911782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.911782][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.911782][ T10] netlink_unicast+0x449/0x710 [ 2393.911782][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.911782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.911782][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.911782][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.911782][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.911782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.911782][ T10] [ 2393.913689][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2393.914049][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2393.914049][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.914049][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.914049][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.914049][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.914049][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.914049][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.914049][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.914049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.914049][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.914049][ T10] netlink_unicast+0x449/0x710 [ 2393.914049][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.914049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.914049][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.914049][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.914049][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.914049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.914049][ T10] [ 2393.916248][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2393.916248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.916248][ T10] ipv6_find_idev+0x102/0x170 [ 2393.916248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.916248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.916248][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.916248][ T10] netlink_unicast+0x449/0x710 [ 2393.916248][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.916248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.916248][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.916248][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.916248][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.916248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.916248][ T10] [ 2393.917874][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2393.917874][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.917874][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.917874][ T10] ipv6_find_idev+0x102/0x170 [ 2393.917874][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.917874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.917874][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.917874][ T10] netlink_unicast+0x449/0x710 [ 2393.917874][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.917874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.917874][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.917874][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.917874][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.917874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.917874][ T10] [ 2393.919814][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2393.920128][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2393.920128][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.920128][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.920128][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.920128][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.920128][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.920128][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.920128][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.920128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.920128][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.920128][ T10] netlink_unicast+0x449/0x710 [ 2393.920128][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.920128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.920128][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.920128][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.920128][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.920128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.920128][ T10] [ 2393.922228][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2393.922228][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.922228][ T10] ipv6_find_idev+0x102/0x170 [ 2393.922228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.922228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.922228][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.922228][ T10] netlink_unicast+0x449/0x710 [ 2393.922228][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.922228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.922228][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.922228][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.922228][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.922228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.922228][ T10] [ 2393.923851][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2393.923851][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.923851][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.923851][ T10] ipv6_find_idev+0x102/0x170 [ 2393.923851][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.923851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.923851][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.923851][ T10] netlink_unicast+0x449/0x710 [ 2393.923851][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.923851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.923851][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.923851][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.923851][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.923851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.923851][ T10] [ 2393.925682][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2393.926062][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2393.926062][ T10] netdev_get_by_index+0x5e/0x80 [ 2393.926062][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2393.926062][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2393.926062][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2393.926062][ T10] ipv6_add_addr+0x411/0x2000 [ 2393.926062][ T10] inet6_addr_add+0x30e/0xa40 [ 2393.926062][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2393.926062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.926062][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.926062][ T10] netlink_unicast+0x449/0x710 [ 2393.926062][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.926062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.926062][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.926062][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.926062][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.926062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.926062][ T10] [ 2393.928064][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2393.928064][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2393.928064][ T10] ipv6_find_idev+0x102/0x170 [ 2393.928064][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.928064][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.928064][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.928064][ T10] netlink_unicast+0x449/0x710 [ 2393.928064][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.928064][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.928064][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.928064][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.928064][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.928064][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.928064][ T10] [ 2393.929602][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2393.929602][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2393.929602][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2393.929602][ T10] ipv6_find_idev+0x102/0x170 [ 2393.929602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2393.929602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2393.929602][ T10] netlink_rcv_skb+0x130/0x360 [ 2393.929602][ T10] netlink_unicast+0x449/0x710 [ 2393.929602][ T10] netlink_sendmsg+0x723/0xbe0 [ 2393.929602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2393.929602][ T10] ___sys_sendmsg+0xee/0x170 [ 2393.929602][ T10] __sys_sendmsg+0xcd/0x170 [ 2393.929602][ T10] do_syscall_64+0xc6/0x1e0 [ 2393.929602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2393.929602][ T10] [ 2404.011761][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2404.012101][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2404.012101][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.012101][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.012101][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.012101][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.012101][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.012101][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.012101][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.012101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.012101][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.012101][ T10] netlink_unicast+0x449/0x710 [ 2404.012101][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.012101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.012101][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.012101][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.012101][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.012101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.012101][ T10] [ 2404.014176][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2404.014176][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.014176][ T10] ipv6_find_idev+0x102/0x170 [ 2404.014176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.014176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.014176][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.014176][ T10] netlink_unicast+0x449/0x710 [ 2404.014176][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.014176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.014176][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.014176][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.014176][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.014176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.014176][ T10] [ 2404.015758][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2404.015758][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.015758][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.015758][ T10] ipv6_find_idev+0x102/0x170 [ 2404.015758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.015758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.015758][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.015758][ T10] netlink_unicast+0x449/0x710 [ 2404.015758][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.015758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.015758][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.015758][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.015758][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.015758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.015758][ T10] [ 2404.017696][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2404.017981][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2404.017981][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.017981][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.017981][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.017981][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.017981][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.017981][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.017981][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.017981][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.017981][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.017981][ T10] netlink_unicast+0x449/0x710 [ 2404.017981][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.017981][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.017981][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.017981][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.017981][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.017981][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.017981][ T10] [ 2404.020159][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2404.020159][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.020159][ T10] ipv6_find_idev+0x102/0x170 [ 2404.020159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.020159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.020159][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.020159][ T10] netlink_unicast+0x449/0x710 [ 2404.020159][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.020159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.020159][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.020159][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.020159][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.020159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.020159][ T10] [ 2404.021727][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2404.021727][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.021727][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.021727][ T10] ipv6_find_idev+0x102/0x170 [ 2404.021727][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.021727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.021727][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.021727][ T10] netlink_unicast+0x449/0x710 [ 2404.021727][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.021727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.021727][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.021727][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.021727][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.021727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.021727][ T10] [ 2404.023556][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2404.023899][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2404.023899][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.023899][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.023899][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.023899][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.023899][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.023899][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.023899][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.023899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.023899][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.023899][ T10] netlink_unicast+0x449/0x710 [ 2404.023899][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.023899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.023899][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.023899][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.023899][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.023899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.023899][ T10] [ 2404.026144][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2404.026144][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.026144][ T10] ipv6_find_idev+0x102/0x170 [ 2404.026144][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.026144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.026144][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.026144][ T10] netlink_unicast+0x449/0x710 [ 2404.026144][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.026144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.026144][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.026144][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.026144][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.026144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.026144][ T10] [ 2404.027753][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2404.027753][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.027753][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.027753][ T10] ipv6_find_idev+0x102/0x170 [ 2404.027753][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.027753][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.027753][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.027753][ T10] netlink_unicast+0x449/0x710 [ 2404.027753][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.027753][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.027753][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.027753][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.027753][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.027753][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.027753][ T10] [ 2404.029656][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2404.029914][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2404.029914][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.029914][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.029914][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.029914][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.029914][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.029914][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.029914][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.029914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.029914][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.029914][ T10] netlink_unicast+0x449/0x710 [ 2404.029914][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.029914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.029914][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.029914][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.029914][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.029914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.029914][ T10] [ 2404.031993][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2404.031993][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.031993][ T10] ipv6_find_idev+0x102/0x170 [ 2404.031993][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.031993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.031993][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.031993][ T10] netlink_unicast+0x449/0x710 [ 2404.031993][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.031993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.031993][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.031993][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.031993][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.031993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.031993][ T10] [ 2404.033549][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2404.033549][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.033549][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.033549][ T10] ipv6_find_idev+0x102/0x170 [ 2404.033549][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.033549][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.033549][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.033549][ T10] netlink_unicast+0x449/0x710 [ 2404.033549][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.033549][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.033549][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.033549][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.033549][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.033549][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.033549][ T10] [ 2404.035664][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2404.036268][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2404.036268][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.036268][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.036268][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.036268][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.036268][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.036268][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.036268][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.036268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.036268][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.036268][ T10] netlink_unicast+0x449/0x710 [ 2404.036268][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.036268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.036268][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.036268][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.036268][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.036268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.036268][ T10] [ 2404.038322][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2404.038322][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.038322][ T10] ipv6_find_idev+0x102/0x170 [ 2404.038322][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.038322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.038322][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.038322][ T10] netlink_unicast+0x449/0x710 [ 2404.038322][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.038322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.038322][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.038322][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.038322][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.038322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.038322][ T10] [ 2404.039919][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2404.039919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.039919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.039919][ T10] ipv6_find_idev+0x102/0x170 [ 2404.039919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.039919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.039919][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.039919][ T10] netlink_unicast+0x449/0x710 [ 2404.039919][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.039919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.039919][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.039919][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.039919][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.039919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.039919][ T10] [ 2404.041896][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2404.042163][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2404.042163][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.042163][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.042163][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.042163][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.042163][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.042163][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.042163][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.042163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.042163][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.042163][ T10] netlink_unicast+0x449/0x710 [ 2404.042163][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.042163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.042163][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.042163][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.042163][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.042163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.042163][ T10] [ 2404.044406][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2404.044406][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.044406][ T10] ipv6_find_idev+0x102/0x170 [ 2404.044406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.044406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.044406][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.044406][ T10] netlink_unicast+0x449/0x710 [ 2404.044406][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.044406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.044406][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.044406][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.044406][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.044406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.044406][ T10] [ 2404.046180][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2404.046180][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.046180][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.046180][ T10] ipv6_find_idev+0x102/0x170 [ 2404.046180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.046180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.046180][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.046180][ T10] netlink_unicast+0x449/0x710 [ 2404.046180][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.046180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.046180][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.046180][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.046180][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.046180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.046180][ T10] [ 2404.048104][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2404.048429][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2404.048429][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.048429][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.048429][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.048429][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.048429][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.048429][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.048429][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.048429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.048429][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.048429][ T10] netlink_unicast+0x449/0x710 [ 2404.048429][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.048429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.048429][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.048429][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.048429][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.048429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.048429][ T10] [ 2404.050627][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2404.050627][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.050627][ T10] ipv6_find_idev+0x102/0x170 [ 2404.050627][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.050627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.050627][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.050627][ T10] netlink_unicast+0x449/0x710 [ 2404.050627][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.050627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.050627][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.050627][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.050627][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.050627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.050627][ T10] [ 2404.052291][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2404.052291][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.052291][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.052291][ T10] ipv6_find_idev+0x102/0x170 [ 2404.052291][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.052291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.052291][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.052291][ T10] netlink_unicast+0x449/0x710 [ 2404.052291][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.052291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.052291][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.052291][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.052291][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.052291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.052291][ T10] [ 2404.054175][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2404.054554][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2404.054554][ T10] netdev_get_by_index+0x5e/0x80 [ 2404.054554][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2404.054554][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2404.054554][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2404.054554][ T10] ipv6_add_addr+0x411/0x2000 [ 2404.054554][ T10] inet6_addr_add+0x30e/0xa40 [ 2404.054554][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.054554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.054554][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.054554][ T10] netlink_unicast+0x449/0x710 [ 2404.054554][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.054554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.054554][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.054554][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.054554][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.054554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.054554][ T10] [ 2404.056557][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2404.056557][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2404.056557][ T10] ipv6_find_idev+0x102/0x170 [ 2404.056557][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.056557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.056557][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.056557][ T10] netlink_unicast+0x449/0x710 [ 2404.056557][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.056557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.056557][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.056557][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.056557][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.056557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.056557][ T10] [ 2404.058097][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2404.058097][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2404.058097][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2404.058097][ T10] ipv6_find_idev+0x102/0x170 [ 2404.058097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.058097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.058097][ T10] netlink_rcv_skb+0x130/0x360 [ 2404.058097][ T10] netlink_unicast+0x449/0x710 [ 2404.058097][ T10] netlink_sendmsg+0x723/0xbe0 [ 2404.058097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2404.058097][ T10] ___sys_sendmsg+0xee/0x170 [ 2404.058097][ T10] __sys_sendmsg+0xcd/0x170 [ 2404.058097][ T10] do_syscall_64+0xc6/0x1e0 [ 2404.058097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.058097][ T10] [ 2414.155836][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2414.156258][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2414.156258][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.156258][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.156258][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.156258][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.156258][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.156258][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.156258][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.156258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.156258][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.156258][ T10] netlink_unicast+0x449/0x710 [ 2414.156258][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.156258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.156258][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.156258][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.156258][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.156258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.156258][ T10] [ 2414.158270][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2414.158270][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.158270][ T10] ipv6_find_idev+0x102/0x170 [ 2414.158270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.158270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.158270][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.158270][ T10] netlink_unicast+0x449/0x710 [ 2414.158270][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.158270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.158270][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.158270][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.158270][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.158270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.158270][ T10] [ 2414.159862][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2414.159862][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.159862][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.159862][ T10] ipv6_find_idev+0x102/0x170 [ 2414.159862][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.159862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.159862][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.159862][ T10] netlink_unicast+0x449/0x710 [ 2414.159862][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.159862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.159862][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.159862][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.159862][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.159862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.159862][ T10] [ 2414.161557][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2414.161842][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2414.161842][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.161842][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.161842][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.161842][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.161842][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.161842][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.161842][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.161842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.161842][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.161842][ T10] netlink_unicast+0x449/0x710 [ 2414.161842][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.161842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.161842][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.161842][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.161842][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.161842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.161842][ T10] [ 2414.163822][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2414.163822][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.163822][ T10] ipv6_find_idev+0x102/0x170 [ 2414.163822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.163822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.163822][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.163822][ T10] netlink_unicast+0x449/0x710 [ 2414.163822][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.163822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.163822][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.163822][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.163822][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.163822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.163822][ T10] [ 2414.165364][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2414.165364][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.165364][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.165364][ T10] ipv6_find_idev+0x102/0x170 [ 2414.165364][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.165364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.165364][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.165364][ T10] netlink_unicast+0x449/0x710 [ 2414.165364][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.165364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.165364][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.165364][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.165364][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.165364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.165364][ T10] [ 2414.167026][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2414.167306][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2414.167306][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.167306][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.167306][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.167306][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.167306][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.167306][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.167306][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.167306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.167306][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.167306][ T10] netlink_unicast+0x449/0x710 [ 2414.167306][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.167306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.167306][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.167306][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.167306][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.167306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.167306][ T10] [ 2414.169305][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2414.169305][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.169305][ T10] ipv6_find_idev+0x102/0x170 [ 2414.169305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.169305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.169305][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.169305][ T10] netlink_unicast+0x449/0x710 [ 2414.169305][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.169305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.169305][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.169305][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.169305][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.169305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.169305][ T10] [ 2414.170838][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2414.170838][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.170838][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.170838][ T10] ipv6_find_idev+0x102/0x170 [ 2414.170838][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.170838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.170838][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.170838][ T10] netlink_unicast+0x449/0x710 [ 2414.170838][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.170838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.170838][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.170838][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.170838][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.170838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.170838][ T10] [ 2414.172507][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2414.172831][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2414.172831][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.172831][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.172831][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.172831][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.172831][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.172831][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.172831][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.172831][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.172831][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.172831][ T10] netlink_unicast+0x449/0x710 [ 2414.172831][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.172831][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.172831][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.172831][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.172831][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.172831][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.172831][ T10] [ 2414.174801][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2414.174801][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.174801][ T10] ipv6_find_idev+0x102/0x170 [ 2414.174801][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.174801][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.174801][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.174801][ T10] netlink_unicast+0x449/0x710 [ 2414.174801][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.174801][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.174801][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.174801][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.174801][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.174801][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.174801][ T10] [ 2414.176321][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2414.176321][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.176321][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.176321][ T10] ipv6_find_idev+0x102/0x170 [ 2414.176321][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.176321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.176321][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.176321][ T10] netlink_unicast+0x449/0x710 [ 2414.176321][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.176321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.176321][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.176321][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.176321][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.176321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.176321][ T10] [ 2414.178013][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2414.178277][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2414.178277][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.178277][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.178277][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.178277][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.178277][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.178277][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.178277][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.178277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.178277][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.178277][ T10] netlink_unicast+0x449/0x710 [ 2414.178277][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.178277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.178277][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.178277][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.178277][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.178277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.178277][ T10] [ 2414.180254][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2414.180254][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.180254][ T10] ipv6_find_idev+0x102/0x170 [ 2414.180254][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.180254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.180254][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.180254][ T10] netlink_unicast+0x449/0x710 [ 2414.180254][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.180254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.180254][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.180254][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.180254][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.180254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.180254][ T10] [ 2414.181777][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2414.181777][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.181777][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.181777][ T10] ipv6_find_idev+0x102/0x170 [ 2414.181777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.181777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.181777][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.181777][ T10] netlink_unicast+0x449/0x710 [ 2414.181777][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.181777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.181777][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.181777][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.181777][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.181777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.181777][ T10] [ 2414.183710][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2414.183974][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2414.183974][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.183974][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.183974][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.183974][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.183974][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.183974][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.183974][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.183974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.183974][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.183974][ T10] netlink_unicast+0x449/0x710 [ 2414.183974][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.183974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.183974][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.183974][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.183974][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.183974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.183974][ T10] [ 2414.186197][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2414.186197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.186197][ T10] ipv6_find_idev+0x102/0x170 [ 2414.186197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.186197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.186197][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.186197][ T10] netlink_unicast+0x449/0x710 [ 2414.186197][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.186197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.186197][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.186197][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.186197][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.186197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.186197][ T10] [ 2414.187907][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2414.187907][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.187907][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.187907][ T10] ipv6_find_idev+0x102/0x170 [ 2414.187907][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.187907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.187907][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.187907][ T10] netlink_unicast+0x449/0x710 [ 2414.187907][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.187907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.187907][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.187907][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.187907][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.187907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.187907][ T10] [ 2414.189810][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2414.190076][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2414.190076][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.190076][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.190076][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.190076][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.190076][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.190076][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.190076][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.190076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.190076][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.190076][ T10] netlink_unicast+0x449/0x710 [ 2414.190076][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.190076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.190076][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.190076][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.190076][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.190076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.190076][ T10] [ 2414.192321][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2414.192321][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.192321][ T10] ipv6_find_idev+0x102/0x170 [ 2414.192321][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.192321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.192321][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.192321][ T10] netlink_unicast+0x449/0x710 [ 2414.192321][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.192321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.192321][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.192321][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.192321][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.192321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.192321][ T10] [ 2414.194010][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2414.194010][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.194010][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.194010][ T10] ipv6_find_idev+0x102/0x170 [ 2414.194010][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.194010][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.194010][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.194010][ T10] netlink_unicast+0x449/0x710 [ 2414.194010][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.194010][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.194010][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.194010][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.194010][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.194010][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.194010][ T10] [ 2414.195978][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2414.196237][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2414.196237][ T10] netdev_get_by_index+0x5e/0x80 [ 2414.196237][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2414.196237][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2414.196237][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2414.196237][ T10] ipv6_add_addr+0x411/0x2000 [ 2414.196237][ T10] inet6_addr_add+0x30e/0xa40 [ 2414.196237][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.196237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.196237][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.196237][ T10] netlink_unicast+0x449/0x710 [ 2414.196237][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.196237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.196237][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.196237][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.196237][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.196237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.196237][ T10] [ 2414.198460][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2414.198460][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2414.198460][ T10] ipv6_find_idev+0x102/0x170 [ 2414.198460][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.198460][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.198460][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.198460][ T10] netlink_unicast+0x449/0x710 [ 2414.198460][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.198460][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.198460][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.198460][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.198460][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.198460][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.198460][ T10] [ 2414.200175][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2414.200175][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2414.200175][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2414.200175][ T10] ipv6_find_idev+0x102/0x170 [ 2414.200175][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2414.200175][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.200175][ T10] netlink_rcv_skb+0x130/0x360 [ 2414.200175][ T10] netlink_unicast+0x449/0x710 [ 2414.200175][ T10] netlink_sendmsg+0x723/0xbe0 [ 2414.200175][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2414.200175][ T10] ___sys_sendmsg+0xee/0x170 [ 2414.200175][ T10] __sys_sendmsg+0xcd/0x170 [ 2414.200175][ T10] do_syscall_64+0xc6/0x1e0 [ 2414.200175][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.200175][ T10] [ 2424.315670][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2424.316070][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2424.316070][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.316070][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.316070][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.316070][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.316070][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.316070][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.316070][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.316070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.316070][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.316070][ T10] netlink_unicast+0x449/0x710 [ 2424.316070][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.316070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.316070][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.316070][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.316070][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.316070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.316070][ T10] [ 2424.318092][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2424.318092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.318092][ T10] ipv6_find_idev+0x102/0x170 [ 2424.318092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.318092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.318092][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.318092][ T10] netlink_unicast+0x449/0x710 [ 2424.318092][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.318092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.318092][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.318092][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.318092][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.318092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.318092][ T10] [ 2424.319651][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2424.319651][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.319651][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.319651][ T10] ipv6_find_idev+0x102/0x170 [ 2424.319651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.319651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.319651][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.319651][ T10] netlink_unicast+0x449/0x710 [ 2424.319651][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.319651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.319651][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.319651][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.319651][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.319651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.319651][ T10] [ 2424.321330][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2424.321594][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2424.321594][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.321594][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.321594][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.321594][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.321594][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.321594][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.321594][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.321594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.321594][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.321594][ T10] netlink_unicast+0x449/0x710 [ 2424.321594][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.321594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.321594][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.321594][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.321594][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.321594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.321594][ T10] [ 2424.323594][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2424.323594][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.323594][ T10] ipv6_find_idev+0x102/0x170 [ 2424.323594][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.323594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.323594][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.323594][ T10] netlink_unicast+0x449/0x710 [ 2424.323594][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.323594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.323594][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.323594][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.323594][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.323594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.323594][ T10] [ 2424.325131][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2424.325131][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.325131][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.325131][ T10] ipv6_find_idev+0x102/0x170 [ 2424.325131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.325131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.325131][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.325131][ T10] netlink_unicast+0x449/0x710 [ 2424.325131][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.325131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.325131][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.325131][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.325131][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.325131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.325131][ T10] [ 2424.326811][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2424.327078][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2424.327078][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.327078][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.327078][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.327078][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.327078][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.327078][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.327078][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.327078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.327078][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.327078][ T10] netlink_unicast+0x449/0x710 [ 2424.327078][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.327078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.327078][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.327078][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.327078][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.327078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.327078][ T10] [ 2424.329208][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2424.329208][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.329208][ T10] ipv6_find_idev+0x102/0x170 [ 2424.329208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.329208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.329208][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.329208][ T10] netlink_unicast+0x449/0x710 [ 2424.329208][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.329208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.329208][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.329208][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.329208][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.329208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.329208][ T10] [ 2424.330806][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2424.330806][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.330806][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.330806][ T10] ipv6_find_idev+0x102/0x170 [ 2424.330806][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.330806][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.330806][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.330806][ T10] netlink_unicast+0x449/0x710 [ 2424.330806][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.330806][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.330806][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.330806][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.330806][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.330806][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.330806][ T10] [ 2424.332656][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2424.332976][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2424.332976][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.332976][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.332976][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.332976][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.332976][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.332976][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.332976][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.332976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.332976][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.332976][ T10] netlink_unicast+0x449/0x710 [ 2424.332976][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.332976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.332976][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.332976][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.332976][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.332976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.332976][ T10] [ 2424.335135][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2424.335135][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.335135][ T10] ipv6_find_idev+0x102/0x170 [ 2424.335135][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.335135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.335135][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.335135][ T10] netlink_unicast+0x449/0x710 [ 2424.335135][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.335135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.335135][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.335135][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.335135][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.335135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.335135][ T10] [ 2424.336808][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2424.336808][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.336808][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.336808][ T10] ipv6_find_idev+0x102/0x170 [ 2424.336808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.336808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.336808][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.336808][ T10] netlink_unicast+0x449/0x710 [ 2424.336808][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.336808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.336808][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.336808][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.336808][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.336808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.336808][ T10] [ 2424.338549][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2424.338859][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2424.338859][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.338859][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.338859][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.338859][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.338859][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.338859][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.338859][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.338859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.338859][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.338859][ T10] netlink_unicast+0x449/0x710 [ 2424.338859][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.338859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.338859][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.338859][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.338859][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.338859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.338859][ T10] [ 2424.341011][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2424.341011][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.341011][ T10] ipv6_find_idev+0x102/0x170 [ 2424.341011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.341011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.341011][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.341011][ T10] netlink_unicast+0x449/0x710 [ 2424.341011][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.341011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.341011][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.341011][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.341011][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.341011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.341011][ T10] [ 2424.342683][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2424.342683][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.342683][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.342683][ T10] ipv6_find_idev+0x102/0x170 [ 2424.342683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.342683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.342683][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.342683][ T10] netlink_unicast+0x449/0x710 [ 2424.342683][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.342683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.342683][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.342683][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.342683][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.342683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.342683][ T10] [ 2424.344557][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2424.344884][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2424.344884][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.344884][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.344884][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.344884][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.344884][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.344884][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.344884][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.344884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.344884][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.344884][ T10] netlink_unicast+0x449/0x710 [ 2424.344884][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.344884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.344884][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.344884][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.344884][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.344884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.344884][ T10] [ 2424.346855][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2424.346855][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.346855][ T10] ipv6_find_idev+0x102/0x170 [ 2424.346855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.346855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.346855][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.346855][ T10] netlink_unicast+0x449/0x710 [ 2424.346855][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.346855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.346855][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.346855][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.346855][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.346855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.346855][ T10] [ 2424.348391][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2424.348391][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.348391][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.348391][ T10] ipv6_find_idev+0x102/0x170 [ 2424.348391][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.348391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.348391][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.348391][ T10] netlink_unicast+0x449/0x710 [ 2424.348391][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.348391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.348391][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.348391][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.348391][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.348391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.348391][ T10] [ 2424.350377][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2424.350643][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2424.350643][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.350643][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.350643][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.350643][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.350643][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.350643][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.350643][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.350643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.350643][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.350643][ T10] netlink_unicast+0x449/0x710 [ 2424.350643][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.350643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.350643][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.350643][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.350643][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.350643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.350643][ T10] [ 2424.352617][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2424.352617][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.352617][ T10] ipv6_find_idev+0x102/0x170 [ 2424.352617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.352617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.352617][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.352617][ T10] netlink_unicast+0x449/0x710 [ 2424.352617][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.352617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.352617][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.352617][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.352617][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.352617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.352617][ T10] [ 2424.354199][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2424.354199][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.354199][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.354199][ T10] ipv6_find_idev+0x102/0x170 [ 2424.354199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.354199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.354199][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.354199][ T10] netlink_unicast+0x449/0x710 [ 2424.354199][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.354199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.354199][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.354199][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.354199][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.354199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.354199][ T10] [ 2424.356075][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2424.356351][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2424.356351][ T10] netdev_get_by_index+0x5e/0x80 [ 2424.356351][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2424.356351][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2424.356351][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2424.356351][ T10] ipv6_add_addr+0x411/0x2000 [ 2424.356351][ T10] inet6_addr_add+0x30e/0xa40 [ 2424.356351][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2424.356351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.356351][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.356351][ T10] netlink_unicast+0x449/0x710 [ 2424.356351][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.356351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.356351][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.356351][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.356351][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.356351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.356351][ T10] [ 2424.358535][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2424.358535][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2424.358535][ T10] ipv6_find_idev+0x102/0x170 [ 2424.358535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.358535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.358535][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.358535][ T10] netlink_unicast+0x449/0x710 [ 2424.358535][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.358535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.358535][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.358535][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.358535][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.358535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.358535][ T10] [ 2424.360218][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2424.360218][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2424.360218][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2424.360218][ T10] ipv6_find_idev+0x102/0x170 [ 2424.360218][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2424.360218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2424.360218][ T10] netlink_rcv_skb+0x130/0x360 [ 2424.360218][ T10] netlink_unicast+0x449/0x710 [ 2424.360218][ T10] netlink_sendmsg+0x723/0xbe0 [ 2424.360218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2424.360218][ T10] ___sys_sendmsg+0xee/0x170 [ 2424.360218][ T10] __sys_sendmsg+0xcd/0x170 [ 2424.360218][ T10] do_syscall_64+0xc6/0x1e0 [ 2424.360218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2424.360218][ T10] [ 2434.443744][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2434.444063][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2434.444063][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.444063][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.444063][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.444063][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.444063][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.444063][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.444063][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.444063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.444063][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.444063][ T10] netlink_unicast+0x449/0x710 [ 2434.444063][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.444063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.444063][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.444063][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.444063][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.444063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.444063][ T10] [ 2434.446101][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2434.446101][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.446101][ T10] ipv6_find_idev+0x102/0x170 [ 2434.446101][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.446101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.446101][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.446101][ T10] netlink_unicast+0x449/0x710 [ 2434.446101][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.446101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.446101][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.446101][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.446101][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.446101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.446101][ T10] [ 2434.447663][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2434.447663][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.447663][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.447663][ T10] ipv6_find_idev+0x102/0x170 [ 2434.447663][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.447663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.447663][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.447663][ T10] netlink_unicast+0x449/0x710 [ 2434.447663][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.447663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.447663][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.447663][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.447663][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.447663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.447663][ T10] [ 2434.449364][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2434.449634][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2434.449634][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.449634][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.449634][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.449634][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.449634][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.449634][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.449634][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.449634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.449634][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.449634][ T10] netlink_unicast+0x449/0x710 [ 2434.449634][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.449634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.449634][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.449634][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.449634][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.449634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.449634][ T10] [ 2434.451600][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2434.451600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.451600][ T10] ipv6_find_idev+0x102/0x170 [ 2434.451600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.451600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.451600][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.451600][ T10] netlink_unicast+0x449/0x710 [ 2434.451600][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.451600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.451600][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.451600][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.451600][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.451600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.451600][ T10] [ 2434.453121][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2434.453121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.453121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.453121][ T10] ipv6_find_idev+0x102/0x170 [ 2434.453121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.453121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.453121][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.453121][ T10] netlink_unicast+0x449/0x710 [ 2434.453121][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.453121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.453121][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.453121][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.453121][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.453121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.453121][ T10] [ 2434.454783][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2434.455042][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2434.455042][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.455042][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.455042][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.455042][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.455042][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.455042][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.455042][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.455042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.455042][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.455042][ T10] netlink_unicast+0x449/0x710 [ 2434.455042][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.455042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.455042][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.455042][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.455042][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.455042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.455042][ T10] [ 2434.457043][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2434.457043][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.457043][ T10] ipv6_find_idev+0x102/0x170 [ 2434.457043][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.457043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.457043][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.457043][ T10] netlink_unicast+0x449/0x710 [ 2434.457043][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.457043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.457043][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.457043][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.457043][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.457043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.457043][ T10] [ 2434.458587][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2434.458587][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.458587][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.458587][ T10] ipv6_find_idev+0x102/0x170 [ 2434.458587][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.458587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.458587][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.458587][ T10] netlink_unicast+0x449/0x710 [ 2434.458587][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.458587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.458587][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.458587][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.458587][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.458587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.458587][ T10] [ 2434.460343][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2434.460675][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2434.460675][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.460675][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.460675][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.460675][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.460675][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.460675][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.460675][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.460675][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.460675][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.460675][ T10] netlink_unicast+0x449/0x710 [ 2434.460675][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.460675][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.460675][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.460675][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.460675][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.460675][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.460675][ T10] [ 2434.462845][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2434.462845][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.462845][ T10] ipv6_find_idev+0x102/0x170 [ 2434.462845][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.462845][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.462845][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.462845][ T10] netlink_unicast+0x449/0x710 [ 2434.462845][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.462845][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.462845][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.462845][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.462845][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.462845][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.462845][ T10] [ 2434.464654][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2434.464654][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.464654][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.464654][ T10] ipv6_find_idev+0x102/0x170 [ 2434.464654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.464654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.464654][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.464654][ T10] netlink_unicast+0x449/0x710 [ 2434.464654][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.464654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.464654][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.464654][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.464654][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.464654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.464654][ T10] [ 2434.466524][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2434.467288][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2434.467288][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.467288][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.467288][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.467288][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.467288][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.467288][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.467288][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.467288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.467288][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.467288][ T10] netlink_unicast+0x449/0x710 [ 2434.467288][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.467288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.467288][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.467288][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.467288][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.467288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.467288][ T10] [ 2434.469298][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2434.469298][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.469298][ T10] ipv6_find_idev+0x102/0x170 [ 2434.469298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.469298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.469298][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.469298][ T10] netlink_unicast+0x449/0x710 [ 2434.469298][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.469298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.469298][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.469298][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.469298][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.469298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.469298][ T10] [ 2434.470820][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2434.470820][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.470820][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.470820][ T10] ipv6_find_idev+0x102/0x170 [ 2434.470820][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.470820][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.470820][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.470820][ T10] netlink_unicast+0x449/0x710 [ 2434.470820][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.470820][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.470820][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.470820][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.470820][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.470820][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.470820][ T10] [ 2434.472500][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2434.472811][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2434.472811][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.472811][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.472811][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.472811][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.472811][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.472811][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.472811][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.472811][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.472811][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.472811][ T10] netlink_unicast+0x449/0x710 [ 2434.472811][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.472811][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.472811][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.472811][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.472811][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.472811][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.472811][ T10] [ 2434.474784][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2434.474784][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.474784][ T10] ipv6_find_idev+0x102/0x170 [ 2434.474784][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.474784][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.474784][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.474784][ T10] netlink_unicast+0x449/0x710 [ 2434.474784][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.474784][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.474784][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.474784][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.474784][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.474784][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.474784][ T10] [ 2434.476414][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2434.476414][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.476414][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.476414][ T10] ipv6_find_idev+0x102/0x170 [ 2434.476414][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.476414][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.476414][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.476414][ T10] netlink_unicast+0x449/0x710 [ 2434.476414][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.476414][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.476414][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.476414][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.476414][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.476414][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.476414][ T10] [ 2434.478253][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2434.478590][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2434.478590][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.478590][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.478590][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.478590][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.478590][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.478590][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.478590][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.478590][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.478590][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.478590][ T10] netlink_unicast+0x449/0x710 [ 2434.478590][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.478590][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.478590][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.478590][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.478590][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.478590][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.478590][ T10] [ 2434.480785][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2434.480785][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.480785][ T10] ipv6_find_idev+0x102/0x170 [ 2434.480785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.480785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.480785][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.480785][ T10] netlink_unicast+0x449/0x710 [ 2434.480785][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.480785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.480785][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.480785][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.480785][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.480785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.480785][ T10] [ 2434.482312][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2434.482312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.482312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.482312][ T10] ipv6_find_idev+0x102/0x170 [ 2434.482312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.482312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.482312][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.482312][ T10] netlink_unicast+0x449/0x710 [ 2434.482312][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.482312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.482312][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.482312][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.482312][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.482312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.482312][ T10] [ 2434.484068][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2434.484340][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2434.484340][ T10] netdev_get_by_index+0x5e/0x80 [ 2434.484340][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2434.484340][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2434.484340][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2434.484340][ T10] ipv6_add_addr+0x411/0x2000 [ 2434.484340][ T10] inet6_addr_add+0x30e/0xa40 [ 2434.484340][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2434.484340][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.484340][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.484340][ T10] netlink_unicast+0x449/0x710 [ 2434.484340][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.484340][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.484340][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.484340][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.484340][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.484340][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.484340][ T10] [ 2434.486340][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2434.486340][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2434.486340][ T10] ipv6_find_idev+0x102/0x170 [ 2434.486340][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.486340][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.486340][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.486340][ T10] netlink_unicast+0x449/0x710 [ 2434.486340][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.486340][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.486340][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.486340][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.486340][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.486340][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.486340][ T10] [ 2434.487931][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2434.487931][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2434.487931][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2434.487931][ T10] ipv6_find_idev+0x102/0x170 [ 2434.487931][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2434.487931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2434.487931][ T10] netlink_rcv_skb+0x130/0x360 [ 2434.487931][ T10] netlink_unicast+0x449/0x710 [ 2434.487931][ T10] netlink_sendmsg+0x723/0xbe0 [ 2434.487931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2434.487931][ T10] ___sys_sendmsg+0xee/0x170 [ 2434.487931][ T10] __sys_sendmsg+0xcd/0x170 [ 2434.487931][ T10] do_syscall_64+0xc6/0x1e0 [ 2434.487931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2434.487931][ T10] [ 2444.643763][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2444.644093][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2444.644093][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.644093][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.644093][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.644093][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.644093][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.644093][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.644093][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.644093][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.644093][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.644093][ T10] netlink_unicast+0x449/0x710 [ 2444.644093][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.644093][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.644093][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.644093][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.644093][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.644093][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.644093][ T10] [ 2444.646105][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2444.646105][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.646105][ T10] ipv6_find_idev+0x102/0x170 [ 2444.646105][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.646105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.646105][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.646105][ T10] netlink_unicast+0x449/0x710 [ 2444.646105][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.646105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.646105][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.646105][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.646105][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.646105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.646105][ T10] [ 2444.647654][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2444.647654][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.647654][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.647654][ T10] ipv6_find_idev+0x102/0x170 [ 2444.647654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.647654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.647654][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.647654][ T10] netlink_unicast+0x449/0x710 [ 2444.647654][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.647654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.647654][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.647654][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.647654][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.647654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.647654][ T10] [ 2444.649344][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2444.649603][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2444.649603][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.649603][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.649603][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.649603][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.649603][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.649603][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.649603][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.649603][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.649603][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.649603][ T10] netlink_unicast+0x449/0x710 [ 2444.649603][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.649603][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.649603][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.649603][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.649603][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.649603][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.649603][ T10] [ 2444.651610][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2444.651610][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.651610][ T10] ipv6_find_idev+0x102/0x170 [ 2444.651610][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.651610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.651610][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.651610][ T10] netlink_unicast+0x449/0x710 [ 2444.651610][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.651610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.651610][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.651610][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.651610][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.651610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.651610][ T10] [ 2444.653166][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2444.653166][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.653166][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.653166][ T10] ipv6_find_idev+0x102/0x170 [ 2444.653166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.653166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.653166][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.653166][ T10] netlink_unicast+0x449/0x710 [ 2444.653166][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.653166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.653166][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.653166][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.653166][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.653166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.653166][ T10] [ 2444.654850][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2444.655115][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2444.655115][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.655115][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.655115][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.655115][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.655115][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.655115][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.655115][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.655115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.655115][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.655115][ T10] netlink_unicast+0x449/0x710 [ 2444.655115][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.655115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.655115][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.655115][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.655115][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.655115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.655115][ T10] [ 2444.657087][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2444.657087][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.657087][ T10] ipv6_find_idev+0x102/0x170 [ 2444.657087][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.657087][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.657087][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.657087][ T10] netlink_unicast+0x449/0x710 [ 2444.657087][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.657087][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.657087][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.657087][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.657087][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.657087][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.657087][ T10] [ 2444.658877][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2444.658877][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.658877][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.658877][ T10] ipv6_find_idev+0x102/0x170 [ 2444.658877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.658877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.658877][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.658877][ T10] netlink_unicast+0x449/0x710 [ 2444.658877][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.658877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.658877][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.658877][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.658877][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.658877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.658877][ T10] [ 2444.660668][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2444.660998][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2444.660998][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.660998][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.660998][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.660998][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.660998][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.660998][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.660998][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.660998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.660998][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.660998][ T10] netlink_unicast+0x449/0x710 [ 2444.660998][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.660998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.660998][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.660998][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.660998][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.660998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.660998][ T10] [ 2444.663201][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2444.663201][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.663201][ T10] ipv6_find_idev+0x102/0x170 [ 2444.663201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.663201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.663201][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.663201][ T10] netlink_unicast+0x449/0x710 [ 2444.663201][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.663201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.663201][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.663201][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.663201][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.663201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.663201][ T10] [ 2444.664991][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2444.664991][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.664991][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.664991][ T10] ipv6_find_idev+0x102/0x170 [ 2444.664991][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.664991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.664991][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.664991][ T10] netlink_unicast+0x449/0x710 [ 2444.664991][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.664991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.664991][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.664991][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.664991][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.664991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.664991][ T10] [ 2444.666725][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2444.666993][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2444.666993][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.666993][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.666993][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.666993][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.666993][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.666993][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.666993][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.666993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.666993][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.666993][ T10] netlink_unicast+0x449/0x710 [ 2444.666993][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.666993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.666993][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.666993][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.666993][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.666993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.666993][ T10] [ 2444.669116][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2444.669116][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.669116][ T10] ipv6_find_idev+0x102/0x170 [ 2444.669116][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.669116][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.669116][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.669116][ T10] netlink_unicast+0x449/0x710 [ 2444.669116][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.669116][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.669116][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.669116][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.669116][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.669116][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.669116][ T10] [ 2444.670659][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2444.670659][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.670659][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.670659][ T10] ipv6_find_idev+0x102/0x170 [ 2444.670659][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.670659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.670659][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.670659][ T10] netlink_unicast+0x449/0x710 [ 2444.670659][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.670659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.670659][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.670659][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.670659][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.670659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.670659][ T10] [ 2444.672777][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2444.673048][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2444.673048][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.673048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.673048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.673048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.673048][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.673048][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.673048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.673048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.673048][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.673048][ T10] netlink_unicast+0x449/0x710 [ 2444.673048][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.673048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.673048][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.673048][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.673048][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.673048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.673048][ T10] [ 2444.675037][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2444.675037][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.675037][ T10] ipv6_find_idev+0x102/0x170 [ 2444.675037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.675037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.675037][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.675037][ T10] netlink_unicast+0x449/0x710 [ 2444.675037][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.675037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.675037][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.675037][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.675037][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.675037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.675037][ T10] [ 2444.676895][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2444.676895][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.676895][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.676895][ T10] ipv6_find_idev+0x102/0x170 [ 2444.676895][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.676895][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.676895][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.676895][ T10] netlink_unicast+0x449/0x710 [ 2444.676895][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.676895][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.676895][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.676895][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.676895][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.676895][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.676895][ T10] [ 2444.678850][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2444.679182][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2444.679182][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.679182][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.679182][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.679182][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.679182][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.679182][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.679182][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.679182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.679182][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.679182][ T10] netlink_unicast+0x449/0x710 [ 2444.679182][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.679182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.679182][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.679182][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.679182][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.679182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.679182][ T10] [ 2444.681528][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2444.681528][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.681528][ T10] ipv6_find_idev+0x102/0x170 [ 2444.681528][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.681528][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.681528][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.681528][ T10] netlink_unicast+0x449/0x710 [ 2444.681528][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.681528][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.681528][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.681528][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.681528][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.681528][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.681528][ T10] [ 2444.683250][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2444.683250][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.683250][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.683250][ T10] ipv6_find_idev+0x102/0x170 [ 2444.683250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.683250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.683250][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.683250][ T10] netlink_unicast+0x449/0x710 [ 2444.683250][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.683250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.683250][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.683250][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.683250][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.683250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.683250][ T10] [ 2444.685112][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2444.685375][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2444.685375][ T10] netdev_get_by_index+0x5e/0x80 [ 2444.685375][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2444.685375][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2444.685375][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2444.685375][ T10] ipv6_add_addr+0x411/0x2000 [ 2444.685375][ T10] inet6_addr_add+0x30e/0xa40 [ 2444.685375][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2444.685375][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.685375][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.685375][ T10] netlink_unicast+0x449/0x710 [ 2444.685375][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.685375][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.685375][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.685375][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.685375][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.685375][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.685375][ T10] [ 2444.687568][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2444.687568][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2444.687568][ T10] ipv6_find_idev+0x102/0x170 [ 2444.687568][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.687568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.687568][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.687568][ T10] netlink_unicast+0x449/0x710 [ 2444.687568][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.687568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.687568][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.687568][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.687568][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.687568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.687568][ T10] [ 2444.689244][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2444.689244][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2444.689244][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2444.689244][ T10] ipv6_find_idev+0x102/0x170 [ 2444.689244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2444.689244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2444.689244][ T10] netlink_rcv_skb+0x130/0x360 [ 2444.689244][ T10] netlink_unicast+0x449/0x710 [ 2444.689244][ T10] netlink_sendmsg+0x723/0xbe0 [ 2444.689244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2444.689244][ T10] ___sys_sendmsg+0xee/0x170 [ 2444.689244][ T10] __sys_sendmsg+0xcd/0x170 [ 2444.689244][ T10] do_syscall_64+0xc6/0x1e0 [ 2444.689244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2444.689244][ T10] [ 2454.764836][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2454.765247][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2454.765247][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.765247][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.765247][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.765247][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.765247][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.765247][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.765247][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.765247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.765247][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.765247][ T10] netlink_unicast+0x449/0x710 [ 2454.765247][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.765247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.765247][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.765247][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.765247][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.765247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.765247][ T10] [ 2454.767299][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2454.767299][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.767299][ T10] ipv6_find_idev+0x102/0x170 [ 2454.767299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.767299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.767299][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.767299][ T10] netlink_unicast+0x449/0x710 [ 2454.767299][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.767299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.767299][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.767299][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.767299][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.767299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.767299][ T10] [ 2454.768881][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2454.768881][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.768881][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.768881][ T10] ipv6_find_idev+0x102/0x170 [ 2454.768881][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.768881][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.768881][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.768881][ T10] netlink_unicast+0x449/0x710 [ 2454.768881][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.768881][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.768881][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.768881][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.768881][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.768881][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.768881][ T10] [ 2454.770600][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2454.770885][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2454.770885][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.770885][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.770885][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.770885][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.770885][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.770885][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.770885][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.770885][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.770885][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.770885][ T10] netlink_unicast+0x449/0x710 [ 2454.770885][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.770885][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.770885][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.770885][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.770885][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.770885][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.770885][ T10] [ 2454.772906][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2454.772906][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.772906][ T10] ipv6_find_idev+0x102/0x170 [ 2454.772906][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.772906][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.772906][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.772906][ T10] netlink_unicast+0x449/0x710 [ 2454.772906][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.772906][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.772906][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.772906][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.772906][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.772906][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.772906][ T10] [ 2454.774477][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2454.774477][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.774477][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.774477][ T10] ipv6_find_idev+0x102/0x170 [ 2454.774477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.774477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.774477][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.774477][ T10] netlink_unicast+0x449/0x710 [ 2454.774477][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.774477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.774477][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.774477][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.774477][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.774477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.774477][ T10] [ 2454.776188][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2454.776458][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2454.776458][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.776458][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.776458][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.776458][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.776458][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.776458][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.776458][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.776458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.776458][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.776458][ T10] netlink_unicast+0x449/0x710 [ 2454.776458][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.776458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.776458][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.776458][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.776458][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.776458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.776458][ T10] [ 2454.778492][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2454.778492][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.778492][ T10] ipv6_find_idev+0x102/0x170 [ 2454.778492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.778492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.778492][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.778492][ T10] netlink_unicast+0x449/0x710 [ 2454.778492][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.778492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.778492][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.778492][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.778492][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.778492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.778492][ T10] [ 2454.780048][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2454.780048][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.780048][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.780048][ T10] ipv6_find_idev+0x102/0x170 [ 2454.780048][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.780048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.780048][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.780048][ T10] netlink_unicast+0x449/0x710 [ 2454.780048][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.780048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.780048][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.780048][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.780048][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.780048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.780048][ T10] [ 2454.781724][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2454.781989][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2454.781989][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.781989][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.781989][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.781989][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.781989][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.781989][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.781989][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.781989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.781989][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.781989][ T10] netlink_unicast+0x449/0x710 [ 2454.781989][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.781989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.781989][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.781989][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.781989][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.781989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.781989][ T10] [ 2454.784068][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2454.784068][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.784068][ T10] ipv6_find_idev+0x102/0x170 [ 2454.784068][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.784068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.784068][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.784068][ T10] netlink_unicast+0x449/0x710 [ 2454.784068][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.784068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.784068][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.784068][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.784068][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.784068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.784068][ T10] [ 2454.785704][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2454.785704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.785704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.785704][ T10] ipv6_find_idev+0x102/0x170 [ 2454.785704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.785704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.785704][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.785704][ T10] netlink_unicast+0x449/0x710 [ 2454.785704][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.785704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.785704][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.785704][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.785704][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.785704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.785704][ T10] [ 2454.787591][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2454.788359][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2454.788359][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.788359][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.788359][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.788359][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.788359][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.788359][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.788359][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.788359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.788359][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.788359][ T10] netlink_unicast+0x449/0x710 [ 2454.788359][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.788359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.788359][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.788359][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.788359][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.788359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.788359][ T10] [ 2454.790419][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2454.790419][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.790419][ T10] ipv6_find_idev+0x102/0x170 [ 2454.790419][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.790419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.790419][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.790419][ T10] netlink_unicast+0x449/0x710 [ 2454.790419][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.790419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.790419][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.790419][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.790419][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.790419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.790419][ T10] [ 2454.792055][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2454.792055][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.792055][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.792055][ T10] ipv6_find_idev+0x102/0x170 [ 2454.792055][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.792055][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.792055][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.792055][ T10] netlink_unicast+0x449/0x710 [ 2454.792055][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.792055][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.792055][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.792055][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.792055][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.792055][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.792055][ T10] [ 2454.793927][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2454.794366][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2454.794366][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.794366][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.794366][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.794366][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.794366][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.794366][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.794366][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.794366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.794366][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.794366][ T10] netlink_unicast+0x449/0x710 [ 2454.794366][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.794366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.794366][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.794366][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.794366][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.794366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.794366][ T10] [ 2454.796363][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2454.796363][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.796363][ T10] ipv6_find_idev+0x102/0x170 [ 2454.796363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.796363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.796363][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.796363][ T10] netlink_unicast+0x449/0x710 [ 2454.796363][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.796363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.796363][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.796363][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.796363][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.796363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.796363][ T10] [ 2454.797931][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2454.797931][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.797931][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.797931][ T10] ipv6_find_idev+0x102/0x170 [ 2454.797931][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.797931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.797931][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.797931][ T10] netlink_unicast+0x449/0x710 [ 2454.797931][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.797931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.797931][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.797931][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.797931][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.797931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.797931][ T10] [ 2454.799805][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2454.800117][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2454.800117][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.800117][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.800117][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.800117][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.800117][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.800117][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.800117][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.800117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.800117][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.800117][ T10] netlink_unicast+0x449/0x710 [ 2454.800117][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.800117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.800117][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.800117][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.800117][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.800117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.800117][ T10] [ 2454.802204][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2454.802204][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.802204][ T10] ipv6_find_idev+0x102/0x170 [ 2454.802204][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.802204][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.802204][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.802204][ T10] netlink_unicast+0x449/0x710 [ 2454.802204][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.802204][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.802204][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.802204][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.802204][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.802204][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.802204][ T10] [ 2454.803815][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2454.803815][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.803815][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.803815][ T10] ipv6_find_idev+0x102/0x170 [ 2454.803815][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.803815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.803815][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.803815][ T10] netlink_unicast+0x449/0x710 [ 2454.803815][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.803815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.803815][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.803815][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.803815][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.803815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.803815][ T10] [ 2454.805775][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2454.806082][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2454.806082][ T10] netdev_get_by_index+0x5e/0x80 [ 2454.806082][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2454.806082][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2454.806082][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2454.806082][ T10] ipv6_add_addr+0x411/0x2000 [ 2454.806082][ T10] inet6_addr_add+0x30e/0xa40 [ 2454.806082][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2454.806082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.806082][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.806082][ T10] netlink_unicast+0x449/0x710 [ 2454.806082][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.806082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.806082][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.806082][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.806082][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.806082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.806082][ T10] [ 2454.808102][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2454.808102][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2454.808102][ T10] ipv6_find_idev+0x102/0x170 [ 2454.808102][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.808102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.808102][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.808102][ T10] netlink_unicast+0x449/0x710 [ 2454.808102][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.808102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.808102][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.808102][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.808102][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.808102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.808102][ T10] [ 2454.809666][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2454.809666][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2454.809666][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2454.809666][ T10] ipv6_find_idev+0x102/0x170 [ 2454.809666][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2454.809666][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2454.809666][ T10] netlink_rcv_skb+0x130/0x360 [ 2454.809666][ T10] netlink_unicast+0x449/0x710 [ 2454.809666][ T10] netlink_sendmsg+0x723/0xbe0 [ 2454.809666][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2454.809666][ T10] ___sys_sendmsg+0xee/0x170 [ 2454.809666][ T10] __sys_sendmsg+0xcd/0x170 [ 2454.809666][ T10] do_syscall_64+0xc6/0x1e0 [ 2454.809666][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2454.809666][ T10] [ 2464.956672][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2464.957008][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2464.957008][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.957008][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.957008][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.957008][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.957008][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.957008][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.957008][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.957008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.957008][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.957008][ T10] netlink_unicast+0x449/0x710 [ 2464.957008][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.957008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.957008][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.957008][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.957008][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.957008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.957008][ T10] [ 2464.959062][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2464.959062][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2464.959062][ T10] ipv6_find_idev+0x102/0x170 [ 2464.959062][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.959062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.959062][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.959062][ T10] netlink_unicast+0x449/0x710 [ 2464.959062][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.959062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.959062][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.959062][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.959062][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.959062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.959062][ T10] [ 2464.960641][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2464.960641][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2464.960641][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2464.960641][ T10] ipv6_find_idev+0x102/0x170 [ 2464.960641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.960641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.960641][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.960641][ T10] netlink_unicast+0x449/0x710 [ 2464.960641][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.960641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.960641][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.960641][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.960641][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.960641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.960641][ T10] [ 2464.962359][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2464.962630][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2464.962630][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.962630][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.962630][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.962630][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.962630][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.962630][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.962630][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.962630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.962630][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.962630][ T10] netlink_unicast+0x449/0x710 [ 2464.962630][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.962630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.962630][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.962630][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.962630][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.962630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.962630][ T10] [ 2464.964670][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2464.964670][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2464.964670][ T10] ipv6_find_idev+0x102/0x170 [ 2464.964670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.964670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.964670][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.964670][ T10] netlink_unicast+0x449/0x710 [ 2464.964670][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.964670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.964670][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.964670][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.964670][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.964670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.964670][ T10] [ 2464.966312][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2464.966312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2464.966312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2464.966312][ T10] ipv6_find_idev+0x102/0x170 [ 2464.966312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.966312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.966312][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.966312][ T10] netlink_unicast+0x449/0x710 [ 2464.966312][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.966312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.966312][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.966312][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.966312][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.966312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.966312][ T10] [ 2464.968340][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2464.968613][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2464.968613][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.968613][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.968613][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.968613][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.968613][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.968613][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.968613][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.968613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.968613][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.968613][ T10] netlink_unicast+0x449/0x710 [ 2464.968613][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.968613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.968613][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.968613][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.968613][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.968613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.968613][ T10] [ 2464.970896][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2464.970896][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2464.970896][ T10] ipv6_find_idev+0x102/0x170 [ 2464.970896][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.970896][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.970896][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.970896][ T10] netlink_unicast+0x449/0x710 [ 2464.970896][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.970896][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.970896][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.970896][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.970896][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.970896][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.970896][ T10] [ 2464.972587][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2464.972587][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2464.972587][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2464.972587][ T10] ipv6_find_idev+0x102/0x170 [ 2464.972587][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.972587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.972587][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.972587][ T10] netlink_unicast+0x449/0x710 [ 2464.972587][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.972587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.972587][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.972587][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.972587][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.972587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.972587][ T10] [ 2464.974556][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2464.974829][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2464.974829][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.974829][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.974829][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.974829][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.974829][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.974829][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.974829][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.974829][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.974829][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.974829][ T10] netlink_unicast+0x449/0x710 [ 2464.974829][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.974829][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.974829][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.974829][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.974829][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.974829][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.974829][ T10] [ 2464.976941][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2464.976941][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2464.976941][ T10] ipv6_find_idev+0x102/0x170 [ 2464.976941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.976941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.976941][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.976941][ T10] netlink_unicast+0x449/0x710 [ 2464.976941][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.976941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.976941][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.976941][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.976941][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.976941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.976941][ T10] [ 2464.978513][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2464.978513][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2464.978513][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2464.978513][ T10] ipv6_find_idev+0x102/0x170 [ 2464.978513][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.978513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.978513][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.978513][ T10] netlink_unicast+0x449/0x710 [ 2464.978513][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.978513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.978513][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.978513][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.978513][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.978513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.978513][ T10] [ 2464.980264][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2464.980530][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2464.980530][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.980530][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.980530][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.980530][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.980530][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.980530][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.980530][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.980530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.980530][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.980530][ T10] netlink_unicast+0x449/0x710 [ 2464.980530][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.980530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.980530][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.980530][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.980530][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.980530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.980530][ T10] [ 2464.982703][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2464.982703][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2464.982703][ T10] ipv6_find_idev+0x102/0x170 [ 2464.982703][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.982703][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.982703][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.982703][ T10] netlink_unicast+0x449/0x710 [ 2464.982703][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.982703][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.982703][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.982703][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.982703][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.982703][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.982703][ T10] [ 2464.984442][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2464.984442][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2464.984442][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2464.984442][ T10] ipv6_find_idev+0x102/0x170 [ 2464.984442][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.984442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.984442][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.984442][ T10] netlink_unicast+0x449/0x710 [ 2464.984442][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.984442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.984442][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.984442][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.984442][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.984442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.984442][ T10] [ 2464.986431][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2464.986759][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2464.986759][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.986759][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.986759][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.986759][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.986759][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.986759][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.986759][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.986759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.986759][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.986759][ T10] netlink_unicast+0x449/0x710 [ 2464.986759][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.986759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.986759][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.986759][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.986759][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.986759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.986759][ T10] [ 2464.988752][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2464.988752][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2464.988752][ T10] ipv6_find_idev+0x102/0x170 [ 2464.988752][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.988752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.988752][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.988752][ T10] netlink_unicast+0x449/0x710 [ 2464.988752][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.988752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.988752][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.988752][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.988752][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.988752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.988752][ T10] [ 2464.990321][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2464.990321][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2464.990321][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2464.990321][ T10] ipv6_find_idev+0x102/0x170 [ 2464.990321][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.990321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.990321][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.990321][ T10] netlink_unicast+0x449/0x710 [ 2464.990321][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.990321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.990321][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.990321][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.990321][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.990321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.990321][ T10] [ 2464.992049][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2464.992320][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2464.992320][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.992320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.992320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.992320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.992320][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.992320][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.992320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.992320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.992320][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.992320][ T10] netlink_unicast+0x449/0x710 [ 2464.992320][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.992320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.992320][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.992320][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.992320][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.992320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.992320][ T10] [ 2464.994328][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2464.994328][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2464.994328][ T10] ipv6_find_idev+0x102/0x170 [ 2464.994328][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.994328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.994328][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.994328][ T10] netlink_unicast+0x449/0x710 [ 2464.994328][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.994328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.994328][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.994328][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.994328][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.994328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.994328][ T10] [ 2464.995890][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2464.995890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2464.995890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2464.995890][ T10] ipv6_find_idev+0x102/0x170 [ 2464.995890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2464.995890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.995890][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.995890][ T10] netlink_unicast+0x449/0x710 [ 2464.995890][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.995890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.995890][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.995890][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.995890][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.995890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.995890][ T10] [ 2464.997628][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2464.997960][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2464.997960][ T10] netdev_get_by_index+0x5e/0x80 [ 2464.997960][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2464.997960][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2464.997960][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2464.997960][ T10] ipv6_add_addr+0x411/0x2000 [ 2464.997960][ T10] inet6_addr_add+0x30e/0xa40 [ 2464.997960][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2464.997960][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2464.997960][ T10] netlink_rcv_skb+0x130/0x360 [ 2464.997960][ T10] netlink_unicast+0x449/0x710 [ 2464.997960][ T10] netlink_sendmsg+0x723/0xbe0 [ 2464.997960][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2464.997960][ T10] ___sys_sendmsg+0xee/0x170 [ 2464.997960][ T10] __sys_sendmsg+0xcd/0x170 [ 2464.997960][ T10] do_syscall_64+0xc6/0x1e0 [ 2464.997960][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2464.997960][ T10] [ 2465.000058][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2465.000058][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2465.000058][ T10] ipv6_find_idev+0x102/0x170 [ 2465.000058][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2465.000058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2465.000058][ T10] netlink_rcv_skb+0x130/0x360 [ 2465.000058][ T10] netlink_unicast+0x449/0x710 [ 2465.000058][ T10] netlink_sendmsg+0x723/0xbe0 [ 2465.000058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2465.000058][ T10] ___sys_sendmsg+0xee/0x170 [ 2465.000058][ T10] __sys_sendmsg+0xcd/0x170 [ 2465.000058][ T10] do_syscall_64+0xc6/0x1e0 [ 2465.000058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2465.000058][ T10] [ 2465.001679][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2465.001679][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2465.001679][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2465.001679][ T10] ipv6_find_idev+0x102/0x170 [ 2465.001679][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2465.001679][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2465.001679][ T10] netlink_rcv_skb+0x130/0x360 [ 2465.001679][ T10] netlink_unicast+0x449/0x710 [ 2465.001679][ T10] netlink_sendmsg+0x723/0xbe0 [ 2465.001679][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2465.001679][ T10] ___sys_sendmsg+0xee/0x170 [ 2465.001679][ T10] __sys_sendmsg+0xcd/0x170 [ 2465.001679][ T10] do_syscall_64+0xc6/0x1e0 [ 2465.001679][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2465.001679][ T10] [ 2475.123726][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2475.124064][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2475.124064][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.124064][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.124064][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.124064][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.124064][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.124064][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.124064][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.124064][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.124064][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.124064][ T10] netlink_unicast+0x449/0x710 [ 2475.124064][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.124064][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.124064][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.124064][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.124064][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.124064][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.124064][ T10] [ 2475.126066][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2475.126066][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.126066][ T10] ipv6_find_idev+0x102/0x170 [ 2475.126066][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.126066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.126066][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.126066][ T10] netlink_unicast+0x449/0x710 [ 2475.126066][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.126066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.126066][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.126066][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.126066][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.126066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.126066][ T10] [ 2475.127591][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2475.127591][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.127591][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.127591][ T10] ipv6_find_idev+0x102/0x170 [ 2475.127591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.127591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.127591][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.127591][ T10] netlink_unicast+0x449/0x710 [ 2475.127591][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.127591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.127591][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.127591][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.127591][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.127591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.127591][ T10] [ 2475.129322][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2475.129587][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2475.129587][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.129587][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.129587][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.129587][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.129587][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.129587][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.129587][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.129587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.129587][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.129587][ T10] netlink_unicast+0x449/0x710 [ 2475.129587][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.129587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.129587][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.129587][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.129587][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.129587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.129587][ T10] [ 2475.131552][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2475.131552][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.131552][ T10] ipv6_find_idev+0x102/0x170 [ 2475.131552][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.131552][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.131552][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.131552][ T10] netlink_unicast+0x449/0x710 [ 2475.131552][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.131552][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.131552][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.131552][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.131552][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.131552][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.131552][ T10] [ 2475.133067][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2475.133067][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.133067][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.133067][ T10] ipv6_find_idev+0x102/0x170 [ 2475.133067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.133067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.133067][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.133067][ T10] netlink_unicast+0x449/0x710 [ 2475.133067][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.133067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.133067][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.133067][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.133067][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.133067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.133067][ T10] [ 2475.134739][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2475.135004][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2475.135004][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.135004][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.135004][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.135004][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.135004][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.135004][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.135004][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.135004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.135004][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.135004][ T10] netlink_unicast+0x449/0x710 [ 2475.135004][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.135004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.135004][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.135004][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.135004][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.135004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.135004][ T10] [ 2475.136981][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2475.136981][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.136981][ T10] ipv6_find_idev+0x102/0x170 [ 2475.136981][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.136981][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.136981][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.136981][ T10] netlink_unicast+0x449/0x710 [ 2475.136981][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.136981][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.136981][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.136981][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.136981][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.136981][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.136981][ T10] [ 2475.138509][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2475.138509][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.138509][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.138509][ T10] ipv6_find_idev+0x102/0x170 [ 2475.138509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.138509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.138509][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.138509][ T10] netlink_unicast+0x449/0x710 [ 2475.138509][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.138509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.138509][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.138509][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.138509][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.138509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.138509][ T10] [ 2475.140661][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2475.140928][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2475.140928][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.140928][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.140928][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.140928][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.140928][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.140928][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.140928][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.140928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.140928][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.140928][ T10] netlink_unicast+0x449/0x710 [ 2475.140928][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.140928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.140928][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.140928][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.140928][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.140928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.140928][ T10] [ 2475.142900][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2475.142900][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.142900][ T10] ipv6_find_idev+0x102/0x170 [ 2475.142900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.142900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.142900][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.142900][ T10] netlink_unicast+0x449/0x710 [ 2475.142900][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.142900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.142900][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.142900][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.142900][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.142900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.142900][ T10] [ 2475.144412][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2475.144412][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.144412][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.144412][ T10] ipv6_find_idev+0x102/0x170 [ 2475.144412][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.144412][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.144412][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.144412][ T10] netlink_unicast+0x449/0x710 [ 2475.144412][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.144412][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.144412][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.144412][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.144412][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.144412][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.144412][ T10] [ 2475.146123][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2475.146386][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2475.146386][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.146386][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.146386][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.146386][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.146386][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.146386][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.146386][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.146386][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.146386][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.146386][ T10] netlink_unicast+0x449/0x710 [ 2475.146386][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.146386][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.146386][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.146386][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.146386][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.146386][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.146386][ T10] [ 2475.148490][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2475.148490][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.148490][ T10] ipv6_find_idev+0x102/0x170 [ 2475.148490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.148490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.148490][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.148490][ T10] netlink_unicast+0x449/0x710 [ 2475.148490][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.148490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.148490][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.148490][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.148490][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.148490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.148490][ T10] [ 2475.150185][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2475.150185][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.150185][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.150185][ T10] ipv6_find_idev+0x102/0x170 [ 2475.150185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.150185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.150185][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.150185][ T10] netlink_unicast+0x449/0x710 [ 2475.150185][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.150185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.150185][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.150185][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.150185][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.150185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.150185][ T10] [ 2475.151953][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2475.152218][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2475.152218][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.152218][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.152218][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.152218][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.152218][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.152218][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.152218][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.152218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.152218][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.152218][ T10] netlink_unicast+0x449/0x710 [ 2475.152218][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.152218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.152218][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.152218][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.152218][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.152218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.152218][ T10] [ 2475.154424][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2475.154424][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.154424][ T10] ipv6_find_idev+0x102/0x170 [ 2475.154424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.154424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.154424][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.154424][ T10] netlink_unicast+0x449/0x710 [ 2475.154424][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.154424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.154424][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.154424][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.154424][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.154424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.154424][ T10] [ 2475.156115][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2475.156115][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.156115][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.156115][ T10] ipv6_find_idev+0x102/0x170 [ 2475.156115][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.156115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.156115][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.156115][ T10] netlink_unicast+0x449/0x710 [ 2475.156115][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.156115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.156115][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.156115][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.156115][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.156115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.156115][ T10] [ 2475.157994][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2475.158264][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2475.158264][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.158264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.158264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.158264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.158264][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.158264][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.158264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.158264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.158264][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.158264][ T10] netlink_unicast+0x449/0x710 [ 2475.158264][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.158264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.158264][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.158264][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.158264][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.158264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.158264][ T10] [ 2475.160310][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2475.160310][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.160310][ T10] ipv6_find_idev+0x102/0x170 [ 2475.160310][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.160310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.160310][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.160310][ T10] netlink_unicast+0x449/0x710 [ 2475.160310][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.160310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.160310][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.160310][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.160310][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.160310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.160310][ T10] [ 2475.162074][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2475.162074][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.162074][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.162074][ T10] ipv6_find_idev+0x102/0x170 [ 2475.162074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.162074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.162074][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.162074][ T10] netlink_unicast+0x449/0x710 [ 2475.162074][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.162074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.162074][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.162074][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.162074][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.162074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.162074][ T10] [ 2475.163901][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2475.164237][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2475.164237][ T10] netdev_get_by_index+0x5e/0x80 [ 2475.164237][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2475.164237][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2475.164237][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2475.164237][ T10] ipv6_add_addr+0x411/0x2000 [ 2475.164237][ T10] inet6_addr_add+0x30e/0xa40 [ 2475.164237][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2475.164237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.164237][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.164237][ T10] netlink_unicast+0x449/0x710 [ 2475.164237][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.164237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.164237][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.164237][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.164237][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.164237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.164237][ T10] [ 2475.166199][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2475.166199][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2475.166199][ T10] ipv6_find_idev+0x102/0x170 [ 2475.166199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.166199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.166199][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.166199][ T10] netlink_unicast+0x449/0x710 [ 2475.166199][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.166199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.166199][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.166199][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.166199][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.166199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.166199][ T10] [ 2475.167718][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2475.167718][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2475.167718][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2475.167718][ T10] ipv6_find_idev+0x102/0x170 [ 2475.167718][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2475.167718][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2475.167718][ T10] netlink_rcv_skb+0x130/0x360 [ 2475.167718][ T10] netlink_unicast+0x449/0x710 [ 2475.167718][ T10] netlink_sendmsg+0x723/0xbe0 [ 2475.167718][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2475.167718][ T10] ___sys_sendmsg+0xee/0x170 [ 2475.167718][ T10] __sys_sendmsg+0xcd/0x170 [ 2475.167718][ T10] do_syscall_64+0xc6/0x1e0 [ 2475.167718][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2475.167718][ T10] [ 2485.323778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2485.324164][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2485.324164][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.324164][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.324164][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.324164][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.324164][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.324164][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.324164][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.324164][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.324164][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.324164][ T10] netlink_unicast+0x449/0x710 [ 2485.324164][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.324164][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.324164][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.324164][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.324164][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.324164][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.324164][ T10] [ 2485.326225][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2485.326225][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.326225][ T10] ipv6_find_idev+0x102/0x170 [ 2485.326225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.326225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.326225][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.326225][ T10] netlink_unicast+0x449/0x710 [ 2485.326225][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.326225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.326225][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.326225][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.326225][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.326225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.326225][ T10] [ 2485.327763][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2485.327763][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.327763][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.327763][ T10] ipv6_find_idev+0x102/0x170 [ 2485.327763][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.327763][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.327763][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.327763][ T10] netlink_unicast+0x449/0x710 [ 2485.327763][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.327763][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.327763][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.327763][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.327763][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.327763][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.327763][ T10] [ 2485.329461][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2485.329739][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2485.329739][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.329739][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.329739][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.329739][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.329739][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.329739][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.329739][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.329739][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.329739][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.329739][ T10] netlink_unicast+0x449/0x710 [ 2485.329739][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.329739][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.329739][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.329739][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.329739][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.329739][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.329739][ T10] [ 2485.331695][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2485.331695][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.331695][ T10] ipv6_find_idev+0x102/0x170 [ 2485.331695][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.331695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.331695][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.331695][ T10] netlink_unicast+0x449/0x710 [ 2485.331695][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.331695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.331695][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.331695][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.331695][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.331695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.331695][ T10] [ 2485.333210][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2485.333210][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.333210][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.333210][ T10] ipv6_find_idev+0x102/0x170 [ 2485.333210][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.333210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.333210][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.333210][ T10] netlink_unicast+0x449/0x710 [ 2485.333210][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.333210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.333210][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.333210][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.333210][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.333210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.333210][ T10] [ 2485.334863][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2485.335129][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2485.335129][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.335129][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.335129][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.335129][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.335129][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.335129][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.335129][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.335129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.335129][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.335129][ T10] netlink_unicast+0x449/0x710 [ 2485.335129][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.335129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.335129][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.335129][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.335129][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.335129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.335129][ T10] [ 2485.337136][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2485.337136][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.337136][ T10] ipv6_find_idev+0x102/0x170 [ 2485.337136][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.337136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.337136][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.337136][ T10] netlink_unicast+0x449/0x710 [ 2485.337136][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.337136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.337136][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.337136][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.337136][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.337136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.337136][ T10] [ 2485.338681][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2485.338681][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.338681][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.338681][ T10] ipv6_find_idev+0x102/0x170 [ 2485.338681][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.338681][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.338681][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.338681][ T10] netlink_unicast+0x449/0x710 [ 2485.338681][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.338681][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.338681][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.338681][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.338681][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.338681][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.338681][ T10] [ 2485.340374][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2485.340634][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2485.340634][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.340634][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.340634][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.340634][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.340634][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.340634][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.340634][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.340634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.340634][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.340634][ T10] netlink_unicast+0x449/0x710 [ 2485.340634][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.340634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.340634][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.340634][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.340634][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.340634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.340634][ T10] [ 2485.342628][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2485.342628][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.342628][ T10] ipv6_find_idev+0x102/0x170 [ 2485.342628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.342628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.342628][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.342628][ T10] netlink_unicast+0x449/0x710 [ 2485.342628][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.342628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.342628][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.342628][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.342628][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.342628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.342628][ T10] [ 2485.344293][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2485.344293][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.344293][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.344293][ T10] ipv6_find_idev+0x102/0x170 [ 2485.344293][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.344293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.344293][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.344293][ T10] netlink_unicast+0x449/0x710 [ 2485.344293][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.344293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.344293][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.344293][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.344293][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.344293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.344293][ T10] [ 2485.346259][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2485.346593][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2485.346593][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.346593][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.346593][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.346593][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.346593][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.346593][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.346593][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.346593][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.346593][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.346593][ T10] netlink_unicast+0x449/0x710 [ 2485.346593][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.346593][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.346593][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.346593][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.346593][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.346593][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.346593][ T10] [ 2485.348829][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2485.348829][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.348829][ T10] ipv6_find_idev+0x102/0x170 [ 2485.348829][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.348829][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.348829][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.348829][ T10] netlink_unicast+0x449/0x710 [ 2485.348829][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.348829][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.348829][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.348829][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.348829][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.348829][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.348829][ T10] [ 2485.350437][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2485.350437][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.350437][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.350437][ T10] ipv6_find_idev+0x102/0x170 [ 2485.350437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.350437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.350437][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.350437][ T10] netlink_unicast+0x449/0x710 [ 2485.350437][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.350437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.350437][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.350437][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.350437][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.350437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.350437][ T10] [ 2485.352292][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2485.352565][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2485.352565][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.352565][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.352565][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.352565][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.352565][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.352565][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.352565][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.352565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.352565][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.352565][ T10] netlink_unicast+0x449/0x710 [ 2485.352565][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.352565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.352565][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.352565][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.352565][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.352565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.352565][ T10] [ 2485.354687][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2485.354687][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.354687][ T10] ipv6_find_idev+0x102/0x170 [ 2485.354687][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.354687][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.354687][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.354687][ T10] netlink_unicast+0x449/0x710 [ 2485.354687][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.354687][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.354687][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.354687][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.354687][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.354687][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.354687][ T10] [ 2485.356275][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2485.356275][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.356275][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.356275][ T10] ipv6_find_idev+0x102/0x170 [ 2485.356275][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.356275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.356275][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.356275][ T10] netlink_unicast+0x449/0x710 [ 2485.356275][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.356275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.356275][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.356275][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.356275][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.356275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.356275][ T10] [ 2485.358233][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2485.358519][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2485.358519][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.358519][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.358519][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.358519][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.358519][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.358519][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.358519][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.358519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.358519][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.358519][ T10] netlink_unicast+0x449/0x710 [ 2485.358519][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.358519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.358519][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.358519][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.358519][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.358519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.358519][ T10] [ 2485.360499][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2485.360499][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.360499][ T10] ipv6_find_idev+0x102/0x170 [ 2485.360499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.360499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.360499][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.360499][ T10] netlink_unicast+0x449/0x710 [ 2485.360499][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.360499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.360499][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.360499][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.360499][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.360499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.360499][ T10] [ 2485.362057][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2485.362057][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.362057][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.362057][ T10] ipv6_find_idev+0x102/0x170 [ 2485.362057][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.362057][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.362057][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.362057][ T10] netlink_unicast+0x449/0x710 [ 2485.362057][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.362057][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.362057][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.362057][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.362057][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.362057][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.362057][ T10] [ 2485.363763][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2485.364024][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2485.364024][ T10] netdev_get_by_index+0x5e/0x80 [ 2485.364024][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2485.364024][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2485.364024][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2485.364024][ T10] ipv6_add_addr+0x411/0x2000 [ 2485.364024][ T10] inet6_addr_add+0x30e/0xa40 [ 2485.364024][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2485.364024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.364024][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.364024][ T10] netlink_unicast+0x449/0x710 [ 2485.364024][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.364024][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.364024][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.364024][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.364024][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.364024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.364024][ T10] [ 2485.366030][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2485.366030][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2485.366030][ T10] ipv6_find_idev+0x102/0x170 [ 2485.366030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.366030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.366030][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.366030][ T10] netlink_unicast+0x449/0x710 [ 2485.366030][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.366030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.366030][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.366030][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.366030][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.366030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.366030][ T10] [ 2485.367694][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2485.367694][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2485.367694][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2485.367694][ T10] ipv6_find_idev+0x102/0x170 [ 2485.367694][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2485.367694][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2485.367694][ T10] netlink_rcv_skb+0x130/0x360 [ 2485.367694][ T10] netlink_unicast+0x449/0x710 [ 2485.367694][ T10] netlink_sendmsg+0x723/0xbe0 [ 2485.367694][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2485.367694][ T10] ___sys_sendmsg+0xee/0x170 [ 2485.367694][ T10] __sys_sendmsg+0xcd/0x170 [ 2485.367694][ T10] do_syscall_64+0xc6/0x1e0 [ 2485.367694][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2485.367694][ T10] [ 2495.467748][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2495.468088][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2495.468088][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.468088][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.468088][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.468088][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.468088][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.468088][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.468088][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.468088][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.468088][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.468088][ T10] netlink_unicast+0x449/0x710 [ 2495.468088][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.468088][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.468088][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.468088][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.468088][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.468088][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.468088][ T10] [ 2495.470133][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2495.470133][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.470133][ T10] ipv6_find_idev+0x102/0x170 [ 2495.470133][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.470133][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.470133][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.470133][ T10] netlink_unicast+0x449/0x710 [ 2495.470133][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.470133][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.470133][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.470133][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.470133][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.470133][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.470133][ T10] [ 2495.471672][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2495.471672][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.471672][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.471672][ T10] ipv6_find_idev+0x102/0x170 [ 2495.471672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.471672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.471672][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.471672][ T10] netlink_unicast+0x449/0x710 [ 2495.471672][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.471672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.471672][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.471672][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.471672][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.471672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.471672][ T10] [ 2495.473332][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2495.473594][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2495.473594][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.473594][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.473594][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.473594][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.473594][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.473594][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.473594][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.473594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.473594][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.473594][ T10] netlink_unicast+0x449/0x710 [ 2495.473594][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.473594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.473594][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.473594][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.473594][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.473594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.473594][ T10] [ 2495.475600][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2495.475600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.475600][ T10] ipv6_find_idev+0x102/0x170 [ 2495.475600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.475600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.475600][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.475600][ T10] netlink_unicast+0x449/0x710 [ 2495.475600][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.475600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.475600][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.475600][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.475600][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.475600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.475600][ T10] [ 2495.477156][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2495.477156][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.477156][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.477156][ T10] ipv6_find_idev+0x102/0x170 [ 2495.477156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.477156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.477156][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.477156][ T10] netlink_unicast+0x449/0x710 [ 2495.477156][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.477156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.477156][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.477156][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.477156][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.477156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.477156][ T10] [ 2495.478854][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2495.479116][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2495.479116][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.479116][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.479116][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.479116][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.479116][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.479116][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.479116][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.479116][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.479116][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.479116][ T10] netlink_unicast+0x449/0x710 [ 2495.479116][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.479116][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.479116][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.479116][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.479116][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.479116][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.479116][ T10] [ 2495.481140][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2495.481140][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.481140][ T10] ipv6_find_idev+0x102/0x170 [ 2495.481140][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.481140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.481140][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.481140][ T10] netlink_unicast+0x449/0x710 [ 2495.481140][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.481140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.481140][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.481140][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.481140][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.481140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.481140][ T10] [ 2495.482710][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2495.482710][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.482710][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.482710][ T10] ipv6_find_idev+0x102/0x170 [ 2495.482710][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.482710][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.482710][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.482710][ T10] netlink_unicast+0x449/0x710 [ 2495.482710][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.482710][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.482710][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.482710][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.482710][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.482710][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.482710][ T10] [ 2495.484400][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2495.484740][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2495.484740][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.484740][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.484740][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.484740][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.484740][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.484740][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.484740][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.484740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.484740][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.484740][ T10] netlink_unicast+0x449/0x710 [ 2495.484740][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.484740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.484740][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.484740][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.484740][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.484740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.484740][ T10] [ 2495.486948][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2495.486948][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.486948][ T10] ipv6_find_idev+0x102/0x170 [ 2495.486948][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.486948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.486948][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.486948][ T10] netlink_unicast+0x449/0x710 [ 2495.486948][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.486948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.486948][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.486948][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.486948][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.486948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.486948][ T10] [ 2495.488767][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2495.488767][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.488767][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.488767][ T10] ipv6_find_idev+0x102/0x170 [ 2495.488767][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.488767][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.488767][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.488767][ T10] netlink_unicast+0x449/0x710 [ 2495.488767][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.488767][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.488767][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.488767][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.488767][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.488767][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.488767][ T10] [ 2495.490495][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2495.491198][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2495.491198][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.491198][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.491198][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.491198][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.491198][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.491198][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.491198][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.491198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.491198][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.491198][ T10] netlink_unicast+0x449/0x710 [ 2495.491198][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.491198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.491198][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.491198][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.491198][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.491198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.491198][ T10] [ 2495.493169][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2495.493169][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.493169][ T10] ipv6_find_idev+0x102/0x170 [ 2495.493169][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.493169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.493169][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.493169][ T10] netlink_unicast+0x449/0x710 [ 2495.493169][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.493169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.493169][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.493169][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.493169][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.493169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.493169][ T10] [ 2495.494702][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2495.494702][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.494702][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.494702][ T10] ipv6_find_idev+0x102/0x170 [ 2495.494702][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.494702][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.494702][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.494702][ T10] netlink_unicast+0x449/0x710 [ 2495.494702][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.494702][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.494702][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.494702][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.494702][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.494702][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.494702][ T10] [ 2495.496792][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2495.497115][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2495.497115][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.497115][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.497115][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.497115][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.497115][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.497115][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.497115][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.497115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.497115][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.497115][ T10] netlink_unicast+0x449/0x710 [ 2495.497115][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.497115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.497115][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.497115][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.497115][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.497115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.497115][ T10] [ 2495.499360][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2495.499360][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.499360][ T10] ipv6_find_idev+0x102/0x170 [ 2495.499360][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.499360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.499360][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.499360][ T10] netlink_unicast+0x449/0x710 [ 2495.499360][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.499360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.499360][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.499360][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.499360][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.499360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.499360][ T10] [ 2495.501113][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2495.501113][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.501113][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.501113][ T10] ipv6_find_idev+0x102/0x170 [ 2495.501113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.501113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.501113][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.501113][ T10] netlink_unicast+0x449/0x710 [ 2495.501113][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.501113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.501113][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.501113][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.501113][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.501113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.501113][ T10] [ 2495.502867][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2495.503129][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2495.503129][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.503129][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.503129][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.503129][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.503129][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.503129][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.503129][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.503129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.503129][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.503129][ T10] netlink_unicast+0x449/0x710 [ 2495.503129][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.503129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.503129][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.503129][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.503129][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.503129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.503129][ T10] [ 2495.505500][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2495.505500][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.505500][ T10] ipv6_find_idev+0x102/0x170 [ 2495.505500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.505500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.505500][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.505500][ T10] netlink_unicast+0x449/0x710 [ 2495.505500][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.505500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.505500][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.505500][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.505500][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.505500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.505500][ T10] [ 2495.507176][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2495.507176][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.507176][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.507176][ T10] ipv6_find_idev+0x102/0x170 [ 2495.507176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.507176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.507176][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.507176][ T10] netlink_unicast+0x449/0x710 [ 2495.507176][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.507176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.507176][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.507176][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.507176][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.507176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.507176][ T10] [ 2495.509090][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2495.509354][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2495.509354][ T10] netdev_get_by_index+0x5e/0x80 [ 2495.509354][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2495.509354][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2495.509354][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2495.509354][ T10] ipv6_add_addr+0x411/0x2000 [ 2495.509354][ T10] inet6_addr_add+0x30e/0xa40 [ 2495.509354][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2495.509354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.509354][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.509354][ T10] netlink_unicast+0x449/0x710 [ 2495.509354][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.509354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.509354][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.509354][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.509354][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.509354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.509354][ T10] [ 2495.511643][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2495.511643][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2495.511643][ T10] ipv6_find_idev+0x102/0x170 [ 2495.511643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.511643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.511643][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.511643][ T10] netlink_unicast+0x449/0x710 [ 2495.511643][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.511643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.511643][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.511643][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.511643][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.511643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.511643][ T10] [ 2495.513457][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2495.513457][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2495.513457][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2495.513457][ T10] ipv6_find_idev+0x102/0x170 [ 2495.513457][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2495.513457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2495.513457][ T10] netlink_rcv_skb+0x130/0x360 [ 2495.513457][ T10] netlink_unicast+0x449/0x710 [ 2495.513457][ T10] netlink_sendmsg+0x723/0xbe0 [ 2495.513457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2495.513457][ T10] ___sys_sendmsg+0xee/0x170 [ 2495.513457][ T10] __sys_sendmsg+0xcd/0x170 [ 2495.513457][ T10] do_syscall_64+0xc6/0x1e0 [ 2495.513457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2495.513457][ T10] [ 2505.604764][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2505.605087][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2505.605087][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.605087][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.605087][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.605087][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.605087][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.605087][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.605087][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.605087][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.605087][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.605087][ T10] netlink_unicast+0x449/0x710 [ 2505.605087][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.605087][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.605087][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.605087][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.605087][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.605087][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.605087][ T10] [ 2505.607081][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2505.607081][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.607081][ T10] ipv6_find_idev+0x102/0x170 [ 2505.607081][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.607081][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.607081][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.607081][ T10] netlink_unicast+0x449/0x710 [ 2505.607081][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.607081][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.607081][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.607081][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.607081][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.607081][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.607081][ T10] [ 2505.608643][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2505.608643][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.608643][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.608643][ T10] ipv6_find_idev+0x102/0x170 [ 2505.608643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.608643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.608643][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.608643][ T10] netlink_unicast+0x449/0x710 [ 2505.608643][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.608643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.608643][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.608643][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.608643][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.608643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.608643][ T10] [ 2505.610340][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2505.610609][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2505.610609][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.610609][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.610609][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.610609][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.610609][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.610609][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.610609][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.610609][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.610609][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.610609][ T10] netlink_unicast+0x449/0x710 [ 2505.610609][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.610609][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.610609][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.610609][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.610609][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.610609][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.610609][ T10] [ 2505.612602][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2505.612602][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.612602][ T10] ipv6_find_idev+0x102/0x170 [ 2505.612602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.612602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.612602][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.612602][ T10] netlink_unicast+0x449/0x710 [ 2505.612602][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.612602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.612602][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.612602][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.612602][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.612602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.612602][ T10] [ 2505.614145][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2505.614145][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.614145][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.614145][ T10] ipv6_find_idev+0x102/0x170 [ 2505.614145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.614145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.614145][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.614145][ T10] netlink_unicast+0x449/0x710 [ 2505.614145][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.614145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.614145][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.614145][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.614145][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.614145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.614145][ T10] [ 2505.615803][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2505.616083][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2505.616083][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.616083][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.616083][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.616083][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.616083][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.616083][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.616083][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.616083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.616083][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.616083][ T10] netlink_unicast+0x449/0x710 [ 2505.616083][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.616083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.616083][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.616083][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.616083][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.616083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.616083][ T10] [ 2505.618086][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2505.618086][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.618086][ T10] ipv6_find_idev+0x102/0x170 [ 2505.618086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.618086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.618086][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.618086][ T10] netlink_unicast+0x449/0x710 [ 2505.618086][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.618086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.618086][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.618086][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.618086][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.618086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.618086][ T10] [ 2505.619632][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2505.619632][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.619632][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.619632][ T10] ipv6_find_idev+0x102/0x170 [ 2505.619632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.619632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.619632][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.619632][ T10] netlink_unicast+0x449/0x710 [ 2505.619632][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.619632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.619632][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.619632][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.619632][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.619632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.619632][ T10] [ 2505.621311][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2505.621573][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2505.621573][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.621573][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.621573][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.621573][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.621573][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.621573][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.621573][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.621573][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.621573][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.621573][ T10] netlink_unicast+0x449/0x710 [ 2505.621573][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.621573][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.621573][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.621573][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.621573][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.621573][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.621573][ T10] [ 2505.623535][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2505.623535][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.623535][ T10] ipv6_find_idev+0x102/0x170 [ 2505.623535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.623535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.623535][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.623535][ T10] netlink_unicast+0x449/0x710 [ 2505.623535][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.623535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.623535][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.623535][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.623535][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.623535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.623535][ T10] [ 2505.625060][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2505.625060][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.625060][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.625060][ T10] ipv6_find_idev+0x102/0x170 [ 2505.625060][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.625060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.625060][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.625060][ T10] netlink_unicast+0x449/0x710 [ 2505.625060][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.625060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.625060][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.625060][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.625060][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.625060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.625060][ T10] [ 2505.627148][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2505.627413][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2505.627413][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.627413][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.627413][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.627413][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.627413][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.627413][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.627413][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.627413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.627413][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.627413][ T10] netlink_unicast+0x449/0x710 [ 2505.627413][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.627413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.627413][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.627413][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.627413][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.627413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.627413][ T10] [ 2505.629430][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2505.629430][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.629430][ T10] ipv6_find_idev+0x102/0x170 [ 2505.629430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.629430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.629430][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.629430][ T10] netlink_unicast+0x449/0x710 [ 2505.629430][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.629430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.629430][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.629430][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.629430][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.629430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.629430][ T10] [ 2505.631105][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2505.631105][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.631105][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.631105][ T10] ipv6_find_idev+0x102/0x170 [ 2505.631105][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.631105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.631105][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.631105][ T10] netlink_unicast+0x449/0x710 [ 2505.631105][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.631105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.631105][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.631105][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.631105][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.631105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.631105][ T10] [ 2505.633016][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2505.633287][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2505.633287][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.633287][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.633287][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.633287][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.633287][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.633287][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.633287][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.633287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.633287][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.633287][ T10] netlink_unicast+0x449/0x710 [ 2505.633287][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.633287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.633287][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.633287][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.633287][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.633287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.633287][ T10] [ 2505.635401][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2505.635401][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.635401][ T10] ipv6_find_idev+0x102/0x170 [ 2505.635401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.635401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.635401][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.635401][ T10] netlink_unicast+0x449/0x710 [ 2505.635401][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.635401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.635401][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.635401][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.635401][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.635401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.635401][ T10] [ 2505.636941][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2505.636941][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.636941][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.636941][ T10] ipv6_find_idev+0x102/0x170 [ 2505.636941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.636941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.636941][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.636941][ T10] netlink_unicast+0x449/0x710 [ 2505.636941][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.636941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.636941][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.636941][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.636941][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.636941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.636941][ T10] [ 2505.638853][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2505.639166][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2505.639166][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.639166][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.639166][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.639166][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.639166][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.639166][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.639166][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.639166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.639166][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.639166][ T10] netlink_unicast+0x449/0x710 [ 2505.639166][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.639166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.639166][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.639166][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.639166][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.639166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.639166][ T10] [ 2505.641365][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2505.641365][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.641365][ T10] ipv6_find_idev+0x102/0x170 [ 2505.641365][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.641365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.641365][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.641365][ T10] netlink_unicast+0x449/0x710 [ 2505.641365][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.641365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.641365][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.641365][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.641365][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.641365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.641365][ T10] [ 2505.643074][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2505.643074][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.643074][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.643074][ T10] ipv6_find_idev+0x102/0x170 [ 2505.643074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.643074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.643074][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.643074][ T10] netlink_unicast+0x449/0x710 [ 2505.643074][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.643074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.643074][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.643074][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.643074][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.643074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.643074][ T10] [ 2505.644959][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2505.645223][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2505.645223][ T10] netdev_get_by_index+0x5e/0x80 [ 2505.645223][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2505.645223][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2505.645223][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2505.645223][ T10] ipv6_add_addr+0x411/0x2000 [ 2505.645223][ T10] inet6_addr_add+0x30e/0xa40 [ 2505.645223][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2505.645223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.645223][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.645223][ T10] netlink_unicast+0x449/0x710 [ 2505.645223][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.645223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.645223][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.645223][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.645223][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.645223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.645223][ T10] [ 2505.647353][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2505.647353][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2505.647353][ T10] ipv6_find_idev+0x102/0x170 [ 2505.647353][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.647353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.647353][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.647353][ T10] netlink_unicast+0x449/0x710 [ 2505.647353][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.647353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.647353][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.647353][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.647353][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.647353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.647353][ T10] [ 2505.649030][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2505.649030][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2505.649030][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2505.649030][ T10] ipv6_find_idev+0x102/0x170 [ 2505.649030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2505.649030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2505.649030][ T10] netlink_rcv_skb+0x130/0x360 [ 2505.649030][ T10] netlink_unicast+0x449/0x710 [ 2505.649030][ T10] netlink_sendmsg+0x723/0xbe0 [ 2505.649030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2505.649030][ T10] ___sys_sendmsg+0xee/0x170 [ 2505.649030][ T10] __sys_sendmsg+0xcd/0x170 [ 2505.649030][ T10] do_syscall_64+0xc6/0x1e0 [ 2505.649030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2505.649030][ T10] [ 2515.787768][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2515.788127][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2515.788127][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.788127][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.788127][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.788127][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.788127][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.788127][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.788127][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.788127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.788127][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.788127][ T10] netlink_unicast+0x449/0x710 [ 2515.788127][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.788127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.788127][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.788127][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.788127][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.788127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.788127][ T10] [ 2515.790424][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2515.790424][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.790424][ T10] ipv6_find_idev+0x102/0x170 [ 2515.790424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.790424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.790424][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.790424][ T10] netlink_unicast+0x449/0x710 [ 2515.790424][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.790424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.790424][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.790424][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.790424][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.790424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.790424][ T10] [ 2515.792199][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2515.792199][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.792199][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.792199][ T10] ipv6_find_idev+0x102/0x170 [ 2515.792199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.792199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.792199][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.792199][ T10] netlink_unicast+0x449/0x710 [ 2515.792199][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.792199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.792199][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.792199][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.792199][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.792199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.792199][ T10] [ 2515.794264][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2515.794579][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2515.794579][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.794579][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.794579][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.794579][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.794579][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.794579][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.794579][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.794579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.794579][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.794579][ T10] netlink_unicast+0x449/0x710 [ 2515.794579][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.794579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.794579][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.794579][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.794579][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.794579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.794579][ T10] [ 2515.797079][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2515.797079][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.797079][ T10] ipv6_find_idev+0x102/0x170 [ 2515.797079][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.797079][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.797079][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.797079][ T10] netlink_unicast+0x449/0x710 [ 2515.797079][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.797079][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.797079][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.797079][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.797079][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.797079][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.797079][ T10] [ 2515.799116][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2515.799116][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.799116][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.799116][ T10] ipv6_find_idev+0x102/0x170 [ 2515.799116][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.799116][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.799116][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.799116][ T10] netlink_unicast+0x449/0x710 [ 2515.799116][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.799116][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.799116][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.799116][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.799116][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.799116][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.799116][ T10] [ 2515.801305][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2515.801608][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2515.801608][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.801608][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.801608][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.801608][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.801608][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.801608][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.801608][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.801608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.801608][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.801608][ T10] netlink_unicast+0x449/0x710 [ 2515.801608][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.801608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.801608][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.801608][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.801608][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.801608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.801608][ T10] [ 2515.804005][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2515.804005][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.804005][ T10] ipv6_find_idev+0x102/0x170 [ 2515.804005][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.804005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.804005][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.804005][ T10] netlink_unicast+0x449/0x710 [ 2515.804005][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.804005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.804005][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.804005][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.804005][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.804005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.804005][ T10] [ 2515.805846][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2515.805846][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.805846][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.805846][ T10] ipv6_find_idev+0x102/0x170 [ 2515.805846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.805846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.805846][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.805846][ T10] netlink_unicast+0x449/0x710 [ 2515.805846][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.805846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.805846][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.805846][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.805846][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.805846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.805846][ T10] [ 2515.807997][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2515.808348][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2515.808348][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.808348][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.808348][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.808348][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.808348][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.808348][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.808348][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.808348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.808348][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.808348][ T10] netlink_unicast+0x449/0x710 [ 2515.808348][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.808348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.808348][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.808348][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.808348][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.808348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.808348][ T10] [ 2515.810790][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2515.810790][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.810790][ T10] ipv6_find_idev+0x102/0x170 [ 2515.810790][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.810790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.810790][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.810790][ T10] netlink_unicast+0x449/0x710 [ 2515.810790][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.810790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.810790][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.810790][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.810790][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.810790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.810790][ T10] [ 2515.812757][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2515.812757][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.812757][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.812757][ T10] ipv6_find_idev+0x102/0x170 [ 2515.812757][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.812757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.812757][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.812757][ T10] netlink_unicast+0x449/0x710 [ 2515.812757][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.812757][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.812757][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.812757][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.812757][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.812757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.812757][ T10] [ 2515.814856][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2515.815212][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2515.815212][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.815212][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.815212][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.815212][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.815212][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.815212][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.815212][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.815212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.815212][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.815212][ T10] netlink_unicast+0x449/0x710 [ 2515.815212][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.815212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.815212][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.815212][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.815212][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.815212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.815212][ T10] [ 2515.817579][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2515.817579][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.817579][ T10] ipv6_find_idev+0x102/0x170 [ 2515.817579][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.817579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.817579][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.817579][ T10] netlink_unicast+0x449/0x710 [ 2515.817579][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.817579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.817579][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.817579][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.817579][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.817579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.817579][ T10] [ 2515.819357][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2515.819357][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.819357][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.819357][ T10] ipv6_find_idev+0x102/0x170 [ 2515.819357][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.819357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.819357][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.819357][ T10] netlink_unicast+0x449/0x710 [ 2515.819357][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.819357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.819357][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.819357][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.819357][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.819357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.819357][ T10] [ 2515.821584][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2515.821962][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2515.821962][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.821962][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.821962][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.821962][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.821962][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.821962][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.821962][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.821962][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.821962][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.821962][ T10] netlink_unicast+0x449/0x710 [ 2515.821962][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.821962][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.821962][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.821962][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.821962][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.821962][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.821962][ T10] [ 2515.824539][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2515.824539][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.824539][ T10] ipv6_find_idev+0x102/0x170 [ 2515.824539][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.824539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.824539][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.824539][ T10] netlink_unicast+0x449/0x710 [ 2515.824539][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.824539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.824539][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.824539][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.824539][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.824539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.824539][ T10] [ 2515.826474][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2515.826474][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.826474][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.826474][ T10] ipv6_find_idev+0x102/0x170 [ 2515.826474][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.826474][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.826474][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.826474][ T10] netlink_unicast+0x449/0x710 [ 2515.826474][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.826474][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.826474][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.826474][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.826474][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.826474][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.826474][ T10] [ 2515.828666][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2515.829088][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2515.829088][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.829088][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.829088][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.829088][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.829088][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.829088][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.829088][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.829088][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.829088][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.829088][ T10] netlink_unicast+0x449/0x710 [ 2515.829088][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.829088][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.829088][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.829088][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.829088][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.829088][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.829088][ T10] [ 2515.831447][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2515.831447][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.831447][ T10] ipv6_find_idev+0x102/0x170 [ 2515.831447][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.831447][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.831447][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.831447][ T10] netlink_unicast+0x449/0x710 [ 2515.831447][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.831447][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.831447][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.831447][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.831447][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.831447][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.831447][ T10] [ 2515.833283][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2515.833283][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.833283][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.833283][ T10] ipv6_find_idev+0x102/0x170 [ 2515.833283][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.833283][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.833283][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.833283][ T10] netlink_unicast+0x449/0x710 [ 2515.833283][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.833283][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.833283][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.833283][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.833283][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.833283][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.833283][ T10] [ 2515.835359][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2515.835727][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2515.835727][ T10] netdev_get_by_index+0x5e/0x80 [ 2515.835727][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2515.835727][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2515.835727][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2515.835727][ T10] ipv6_add_addr+0x411/0x2000 [ 2515.835727][ T10] inet6_addr_add+0x30e/0xa40 [ 2515.835727][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2515.835727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.835727][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.835727][ T10] netlink_unicast+0x449/0x710 [ 2515.835727][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.835727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.835727][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.835727][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.835727][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.835727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.835727][ T10] [ 2515.838244][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2515.838244][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2515.838244][ T10] ipv6_find_idev+0x102/0x170 [ 2515.838244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.838244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.838244][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.838244][ T10] netlink_unicast+0x449/0x710 [ 2515.838244][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.838244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.838244][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.838244][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.838244][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.838244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.838244][ T10] [ 2515.840152][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2515.840152][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2515.840152][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2515.840152][ T10] ipv6_find_idev+0x102/0x170 [ 2515.840152][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2515.840152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2515.840152][ T10] netlink_rcv_skb+0x130/0x360 [ 2515.840152][ T10] netlink_unicast+0x449/0x710 [ 2515.840152][ T10] netlink_sendmsg+0x723/0xbe0 [ 2515.840152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2515.840152][ T10] ___sys_sendmsg+0xee/0x170 [ 2515.840152][ T10] __sys_sendmsg+0xcd/0x170 [ 2515.840152][ T10] do_syscall_64+0xc6/0x1e0 [ 2515.840152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2515.840152][ T10] [ 2525.939663][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2525.940035][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2525.940035][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.940035][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.940035][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.940035][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.940035][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.940035][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.940035][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.940035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.940035][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.940035][ T10] netlink_unicast+0x449/0x710 [ 2525.940035][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.940035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.940035][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.940035][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.940035][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.940035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.940035][ T10] [ 2525.942252][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2525.942252][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.942252][ T10] ipv6_find_idev+0x102/0x170 [ 2525.942252][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.942252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.942252][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.942252][ T10] netlink_unicast+0x449/0x710 [ 2525.942252][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.942252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.942252][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.942252][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.942252][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.942252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.942252][ T10] [ 2525.943950][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2525.943950][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.943950][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.943950][ T10] ipv6_find_idev+0x102/0x170 [ 2525.943950][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.943950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.943950][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.943950][ T10] netlink_unicast+0x449/0x710 [ 2525.943950][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.943950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.943950][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.943950][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.943950][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.943950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.943950][ T10] [ 2525.945839][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2525.946135][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2525.946135][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.946135][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.946135][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.946135][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.946135][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.946135][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.946135][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.946135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.946135][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.946135][ T10] netlink_unicast+0x449/0x710 [ 2525.946135][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.946135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.946135][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.946135][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.946135][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.946135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.946135][ T10] [ 2525.948320][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2525.948320][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.948320][ T10] ipv6_find_idev+0x102/0x170 [ 2525.948320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.948320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.948320][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.948320][ T10] netlink_unicast+0x449/0x710 [ 2525.948320][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.948320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.948320][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.948320][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.948320][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.948320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.948320][ T10] [ 2525.950027][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2525.950027][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.950027][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.950027][ T10] ipv6_find_idev+0x102/0x170 [ 2525.950027][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.950027][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.950027][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.950027][ T10] netlink_unicast+0x449/0x710 [ 2525.950027][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.950027][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.950027][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.950027][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.950027][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.950027][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.950027][ T10] [ 2525.951889][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2525.952186][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2525.952186][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.952186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.952186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.952186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.952186][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.952186][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.952186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.952186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.952186][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.952186][ T10] netlink_unicast+0x449/0x710 [ 2525.952186][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.952186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.952186][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.952186][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.952186][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.952186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.952186][ T10] [ 2525.954416][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2525.954416][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.954416][ T10] ipv6_find_idev+0x102/0x170 [ 2525.954416][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.954416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.954416][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.954416][ T10] netlink_unicast+0x449/0x710 [ 2525.954416][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.954416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.954416][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.954416][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.954416][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.954416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.954416][ T10] [ 2525.956097][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2525.956097][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.956097][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.956097][ T10] ipv6_find_idev+0x102/0x170 [ 2525.956097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.956097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.956097][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.956097][ T10] netlink_unicast+0x449/0x710 [ 2525.956097][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.956097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.956097][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.956097][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.956097][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.956097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.956097][ T10] [ 2525.957957][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2525.958261][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2525.958261][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.958261][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.958261][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.958261][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.958261][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.958261][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.958261][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.958261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.958261][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.958261][ T10] netlink_unicast+0x449/0x710 [ 2525.958261][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.958261][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.958261][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.958261][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.958261][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.958261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.958261][ T10] [ 2525.960437][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2525.960437][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.960437][ T10] ipv6_find_idev+0x102/0x170 [ 2525.960437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.960437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.960437][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.960437][ T10] netlink_unicast+0x449/0x710 [ 2525.960437][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.960437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.960437][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.960437][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.960437][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.960437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.960437][ T10] [ 2525.962116][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2525.962116][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.962116][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.962116][ T10] ipv6_find_idev+0x102/0x170 [ 2525.962116][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.962116][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.962116][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.962116][ T10] netlink_unicast+0x449/0x710 [ 2525.962116][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.962116][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.962116][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.962116][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.962116][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.962116][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.962116][ T10] [ 2525.964378][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2525.964739][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2525.964739][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.964739][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.964739][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.964739][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.964739][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.964739][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.964739][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.964739][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.964739][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.964739][ T10] netlink_unicast+0x449/0x710 [ 2525.964739][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.964739][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.964739][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.964739][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.964739][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.964739][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.964739][ T10] [ 2525.966918][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2525.966918][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.966918][ T10] ipv6_find_idev+0x102/0x170 [ 2525.966918][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.966918][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.966918][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.966918][ T10] netlink_unicast+0x449/0x710 [ 2525.966918][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.966918][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.966918][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.966918][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.966918][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.966918][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.966918][ T10] [ 2525.968610][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2525.968610][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.968610][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.968610][ T10] ipv6_find_idev+0x102/0x170 [ 2525.968610][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.968610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.968610][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.968610][ T10] netlink_unicast+0x449/0x710 [ 2525.968610][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.968610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.968610][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.968610][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.968610][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.968610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.968610][ T10] [ 2525.970808][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2525.971227][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2525.971227][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.971227][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.971227][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.971227][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.971227][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.971227][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.971227][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.971227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.971227][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.971227][ T10] netlink_unicast+0x449/0x710 [ 2525.971227][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.971227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.971227][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.971227][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.971227][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.971227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.971227][ T10] [ 2525.973550][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2525.973550][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.973550][ T10] ipv6_find_idev+0x102/0x170 [ 2525.973550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.973550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.973550][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.973550][ T10] netlink_unicast+0x449/0x710 [ 2525.973550][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.973550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.973550][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.973550][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.973550][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.973550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.973550][ T10] [ 2525.975360][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2525.975360][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.975360][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.975360][ T10] ipv6_find_idev+0x102/0x170 [ 2525.975360][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.975360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.975360][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.975360][ T10] netlink_unicast+0x449/0x710 [ 2525.975360][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.975360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.975360][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.975360][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.975360][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.975360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.975360][ T10] [ 2525.977476][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2525.977833][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2525.977833][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.977833][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.977833][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.977833][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.977833][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.977833][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.977833][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.977833][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.977833][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.977833][ T10] netlink_unicast+0x449/0x710 [ 2525.977833][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.977833][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.977833][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.977833][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.977833][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.977833][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.977833][ T10] [ 2525.980203][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2525.980203][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.980203][ T10] ipv6_find_idev+0x102/0x170 [ 2525.980203][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.980203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.980203][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.980203][ T10] netlink_unicast+0x449/0x710 [ 2525.980203][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.980203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.980203][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.980203][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.980203][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.980203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.980203][ T10] [ 2525.982130][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2525.982130][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.982130][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.982130][ T10] ipv6_find_idev+0x102/0x170 [ 2525.982130][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.982130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.982130][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.982130][ T10] netlink_unicast+0x449/0x710 [ 2525.982130][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.982130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.982130][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.982130][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.982130][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.982130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.982130][ T10] [ 2525.984098][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2525.984450][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2525.984450][ T10] netdev_get_by_index+0x5e/0x80 [ 2525.984450][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2525.984450][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2525.984450][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2525.984450][ T10] ipv6_add_addr+0x411/0x2000 [ 2525.984450][ T10] inet6_addr_add+0x30e/0xa40 [ 2525.984450][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2525.984450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.984450][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.984450][ T10] netlink_unicast+0x449/0x710 [ 2525.984450][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.984450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.984450][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.984450][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.984450][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.984450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.984450][ T10] [ 2525.986817][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2525.986817][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2525.986817][ T10] ipv6_find_idev+0x102/0x170 [ 2525.986817][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.986817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.986817][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.986817][ T10] netlink_unicast+0x449/0x710 [ 2525.986817][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.986817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.986817][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.986817][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.986817][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.986817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.986817][ T10] [ 2525.988684][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2525.988684][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2525.988684][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2525.988684][ T10] ipv6_find_idev+0x102/0x170 [ 2525.988684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2525.988684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2525.988684][ T10] netlink_rcv_skb+0x130/0x360 [ 2525.988684][ T10] netlink_unicast+0x449/0x710 [ 2525.988684][ T10] netlink_sendmsg+0x723/0xbe0 [ 2525.988684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2525.988684][ T10] ___sys_sendmsg+0xee/0x170 [ 2525.988684][ T10] __sys_sendmsg+0xcd/0x170 [ 2525.988684][ T10] do_syscall_64+0xc6/0x1e0 [ 2525.988684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2525.988684][ T10] [ 2536.084658][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2536.085028][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2536.085028][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.085028][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.085028][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.085028][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.085028][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.085028][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.085028][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.085028][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.085028][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.085028][ T10] netlink_unicast+0x449/0x710 [ 2536.085028][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.085028][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.085028][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.085028][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.085028][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.085028][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.085028][ T10] [ 2536.087265][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2536.087265][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.087265][ T10] ipv6_find_idev+0x102/0x170 [ 2536.087265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.087265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.087265][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.087265][ T10] netlink_unicast+0x449/0x710 [ 2536.087265][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.087265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.087265][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.087265][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.087265][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.087265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.087265][ T10] [ 2536.088964][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2536.088964][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.088964][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.088964][ T10] ipv6_find_idev+0x102/0x170 [ 2536.088964][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.088964][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.088964][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.088964][ T10] netlink_unicast+0x449/0x710 [ 2536.088964][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.088964][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.088964][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.088964][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.088964][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.088964][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.088964][ T10] [ 2536.090833][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2536.091126][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2536.091126][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.091126][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.091126][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.091126][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.091126][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.091126][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.091126][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.091126][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.091126][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.091126][ T10] netlink_unicast+0x449/0x710 [ 2536.091126][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.091126][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.091126][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.091126][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.091126][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.091126][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.091126][ T10] [ 2536.093295][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2536.093295][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.093295][ T10] ipv6_find_idev+0x102/0x170 [ 2536.093295][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.093295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.093295][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.093295][ T10] netlink_unicast+0x449/0x710 [ 2536.093295][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.093295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.093295][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.093295][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.093295][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.093295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.093295][ T10] [ 2536.094974][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2536.094974][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.094974][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.094974][ T10] ipv6_find_idev+0x102/0x170 [ 2536.094974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.094974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.094974][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.094974][ T10] netlink_unicast+0x449/0x710 [ 2536.094974][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.094974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.094974][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.094974][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.094974][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.094974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.094974][ T10] [ 2536.096887][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2536.097177][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2536.097177][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.097177][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.097177][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.097177][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.097177][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.097177][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.097177][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.097177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.097177][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.097177][ T10] netlink_unicast+0x449/0x710 [ 2536.097177][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.097177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.097177][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.097177][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.097177][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.097177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.097177][ T10] [ 2536.099533][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2536.099533][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.099533][ T10] ipv6_find_idev+0x102/0x170 [ 2536.099533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.099533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.099533][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.099533][ T10] netlink_unicast+0x449/0x710 [ 2536.099533][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.099533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.099533][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.099533][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.099533][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.099533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.099533][ T10] [ 2536.101397][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2536.101397][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.101397][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.101397][ T10] ipv6_find_idev+0x102/0x170 [ 2536.101397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.101397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.101397][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.101397][ T10] netlink_unicast+0x449/0x710 [ 2536.101397][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.101397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.101397][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.101397][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.101397][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.101397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.101397][ T10] [ 2536.103401][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2536.103714][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2536.103714][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.103714][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.103714][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.103714][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.103714][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.103714][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.103714][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.103714][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.103714][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.103714][ T10] netlink_unicast+0x449/0x710 [ 2536.103714][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.103714][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.103714][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.103714][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.103714][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.103714][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.103714][ T10] [ 2536.106095][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2536.106095][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.106095][ T10] ipv6_find_idev+0x102/0x170 [ 2536.106095][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.106095][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.106095][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.106095][ T10] netlink_unicast+0x449/0x710 [ 2536.106095][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.106095][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.106095][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.106095][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.106095][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.106095][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.106095][ T10] [ 2536.107780][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2536.107780][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.107780][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.107780][ T10] ipv6_find_idev+0x102/0x170 [ 2536.107780][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.107780][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.107780][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.107780][ T10] netlink_unicast+0x449/0x710 [ 2536.107780][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.107780][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.107780][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.107780][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.107780][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.107780][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.107780][ T10] [ 2536.109833][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2536.110119][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2536.110119][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.110119][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.110119][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.110119][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.110119][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.110119][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.110119][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.110119][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.110119][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.110119][ T10] netlink_unicast+0x449/0x710 [ 2536.110119][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.110119][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.110119][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.110119][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.110119][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.110119][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.110119][ T10] [ 2536.112565][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2536.112565][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.112565][ T10] ipv6_find_idev+0x102/0x170 [ 2536.112565][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.112565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.112565][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.112565][ T10] netlink_unicast+0x449/0x710 [ 2536.112565][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.112565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.112565][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.112565][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.112565][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.112565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.112565][ T10] [ 2536.114473][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2536.114473][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.114473][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.114473][ T10] ipv6_find_idev+0x102/0x170 [ 2536.114473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.114473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.114473][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.114473][ T10] netlink_unicast+0x449/0x710 [ 2536.114473][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.114473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.114473][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.114473][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.114473][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.114473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.114473][ T10] [ 2536.116487][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2536.116799][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2536.116799][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.116799][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.116799][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.116799][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.116799][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.116799][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.116799][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.116799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.116799][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.116799][ T10] netlink_unicast+0x449/0x710 [ 2536.116799][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.116799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.116799][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.116799][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.116799][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.116799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.116799][ T10] [ 2536.119232][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2536.119232][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.119232][ T10] ipv6_find_idev+0x102/0x170 [ 2536.119232][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.119232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.119232][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.119232][ T10] netlink_unicast+0x449/0x710 [ 2536.119232][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.119232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.119232][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.119232][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.119232][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.119232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.119232][ T10] [ 2536.121129][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2536.121129][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.121129][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.121129][ T10] ipv6_find_idev+0x102/0x170 [ 2536.121129][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.121129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.121129][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.121129][ T10] netlink_unicast+0x449/0x710 [ 2536.121129][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.121129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.121129][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.121129][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.121129][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.121129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.121129][ T10] [ 2536.123586][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2536.124345][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2536.124345][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.124345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.124345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.124345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.124345][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.124345][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.124345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.124345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.124345][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.124345][ T10] netlink_unicast+0x449/0x710 [ 2536.124345][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.124345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.124345][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.124345][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.124345][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.124345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.124345][ T10] [ 2536.126558][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2536.126558][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.126558][ T10] ipv6_find_idev+0x102/0x170 [ 2536.126558][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.126558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.126558][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.126558][ T10] netlink_unicast+0x449/0x710 [ 2536.126558][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.126558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.126558][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.126558][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.126558][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.126558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.126558][ T10] [ 2536.128251][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2536.128251][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.128251][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.128251][ T10] ipv6_find_idev+0x102/0x170 [ 2536.128251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.128251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.128251][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.128251][ T10] netlink_unicast+0x449/0x710 [ 2536.128251][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.128251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.128251][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.128251][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.128251][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.128251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.128251][ T10] [ 2536.130149][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2536.130444][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2536.130444][ T10] netdev_get_by_index+0x5e/0x80 [ 2536.130444][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2536.130444][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2536.130444][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2536.130444][ T10] ipv6_add_addr+0x411/0x2000 [ 2536.130444][ T10] inet6_addr_add+0x30e/0xa40 [ 2536.130444][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2536.130444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.130444][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.130444][ T10] netlink_unicast+0x449/0x710 [ 2536.130444][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.130444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.130444][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.130444][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.130444][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.130444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.130444][ T10] [ 2536.132749][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2536.132749][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2536.132749][ T10] ipv6_find_idev+0x102/0x170 [ 2536.132749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.132749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.132749][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.132749][ T10] netlink_unicast+0x449/0x710 [ 2536.132749][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.132749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.132749][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.132749][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.132749][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.132749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.132749][ T10] [ 2536.134561][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2536.134561][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2536.134561][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2536.134561][ T10] ipv6_find_idev+0x102/0x170 [ 2536.134561][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2536.134561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2536.134561][ T10] netlink_rcv_skb+0x130/0x360 [ 2536.134561][ T10] netlink_unicast+0x449/0x710 [ 2536.134561][ T10] netlink_sendmsg+0x723/0xbe0 [ 2536.134561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2536.134561][ T10] ___sys_sendmsg+0xee/0x170 [ 2536.134561][ T10] __sys_sendmsg+0xcd/0x170 [ 2536.134561][ T10] do_syscall_64+0xc6/0x1e0 [ 2536.134561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2536.134561][ T10] [ 2546.244687][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2546.245028][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2546.245028][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.245028][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.245028][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.245028][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.245028][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.245028][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.245028][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.245028][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.245028][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.245028][ T10] netlink_unicast+0x449/0x710 [ 2546.245028][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.245028][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.245028][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.245028][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.245028][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.245028][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.245028][ T10] [ 2546.247253][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2546.247253][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.247253][ T10] ipv6_find_idev+0x102/0x170 [ 2546.247253][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.247253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.247253][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.247253][ T10] netlink_unicast+0x449/0x710 [ 2546.247253][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.247253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.247253][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.247253][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.247253][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.247253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.247253][ T10] [ 2546.248970][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2546.248970][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.248970][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.248970][ T10] ipv6_find_idev+0x102/0x170 [ 2546.248970][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.248970][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.248970][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.248970][ T10] netlink_unicast+0x449/0x710 [ 2546.248970][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.248970][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.248970][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.248970][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.248970][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.248970][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.248970][ T10] [ 2546.251286][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2546.251580][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2546.251580][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.251580][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.251580][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.251580][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.251580][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.251580][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.251580][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.251580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.251580][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.251580][ T10] netlink_unicast+0x449/0x710 [ 2546.251580][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.251580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.251580][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.251580][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.251580][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.251580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.251580][ T10] [ 2546.253800][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2546.253800][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.253800][ T10] ipv6_find_idev+0x102/0x170 [ 2546.253800][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.253800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.253800][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.253800][ T10] netlink_unicast+0x449/0x710 [ 2546.253800][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.253800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.253800][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.253800][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.253800][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.253800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.253800][ T10] [ 2546.255508][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2546.255508][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.255508][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.255508][ T10] ipv6_find_idev+0x102/0x170 [ 2546.255508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.255508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.255508][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.255508][ T10] netlink_unicast+0x449/0x710 [ 2546.255508][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.255508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.255508][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.255508][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.255508][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.255508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.255508][ T10] [ 2546.257388][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2546.257683][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2546.257683][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.257683][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.257683][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.257683][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.257683][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.257683][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.257683][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.257683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.257683][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.257683][ T10] netlink_unicast+0x449/0x710 [ 2546.257683][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.257683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.257683][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.257683][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.257683][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.257683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.257683][ T10] [ 2546.259913][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2546.259913][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.259913][ T10] ipv6_find_idev+0x102/0x170 [ 2546.259913][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.259913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.259913][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.259913][ T10] netlink_unicast+0x449/0x710 [ 2546.259913][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.259913][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.259913][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.259913][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.259913][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.259913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.259913][ T10] [ 2546.261633][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2546.261633][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.261633][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.261633][ T10] ipv6_find_idev+0x102/0x170 [ 2546.261633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.261633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.261633][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.261633][ T10] netlink_unicast+0x449/0x710 [ 2546.261633][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.261633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.261633][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.261633][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.261633][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.261633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.261633][ T10] [ 2546.264063][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2546.264354][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2546.264354][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.264354][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.264354][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.264354][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.264354][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.264354][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.264354][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.264354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.264354][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.264354][ T10] netlink_unicast+0x449/0x710 [ 2546.264354][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.264354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.264354][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.264354][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.264354][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.264354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.264354][ T10] [ 2546.266705][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2546.266705][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.266705][ T10] ipv6_find_idev+0x102/0x170 [ 2546.266705][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.266705][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.266705][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.266705][ T10] netlink_unicast+0x449/0x710 [ 2546.266705][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.266705][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.266705][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.266705][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.266705][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.266705][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.266705][ T10] [ 2546.268641][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2546.268641][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.268641][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.268641][ T10] ipv6_find_idev+0x102/0x170 [ 2546.268641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.268641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.268641][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.268641][ T10] netlink_unicast+0x449/0x710 [ 2546.268641][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.268641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.268641][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.268641][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.268641][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.268641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.268641][ T10] [ 2546.270702][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2546.270987][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2546.270987][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.270987][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.270987][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.270987][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.270987][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.270987][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.270987][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.270987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.270987][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.270987][ T10] netlink_unicast+0x449/0x710 [ 2546.270987][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.270987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.270987][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.270987][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.270987][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.270987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.270987][ T10] [ 2546.273454][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2546.273454][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.273454][ T10] ipv6_find_idev+0x102/0x170 [ 2546.273454][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.273454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.273454][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.273454][ T10] netlink_unicast+0x449/0x710 [ 2546.273454][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.273454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.273454][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.273454][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.273454][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.273454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.273454][ T10] [ 2546.275398][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2546.275398][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.275398][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.275398][ T10] ipv6_find_idev+0x102/0x170 [ 2546.275398][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.275398][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.275398][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.275398][ T10] netlink_unicast+0x449/0x710 [ 2546.275398][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.275398][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.275398][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.275398][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.275398][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.275398][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.275398][ T10] [ 2546.277984][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2546.278311][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2546.278311][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.278311][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.278311][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.278311][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.278311][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.278311][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.278311][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.278311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.278311][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.278311][ T10] netlink_unicast+0x449/0x710 [ 2546.278311][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.278311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.278311][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.278311][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.278311][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.278311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.278311][ T10] [ 2546.280646][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2546.280646][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.280646][ T10] ipv6_find_idev+0x102/0x170 [ 2546.280646][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.280646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.280646][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.280646][ T10] netlink_unicast+0x449/0x710 [ 2546.280646][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.280646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.280646][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.280646][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.280646][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.280646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.280646][ T10] [ 2546.282483][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2546.282483][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.282483][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.282483][ T10] ipv6_find_idev+0x102/0x170 [ 2546.282483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.282483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.282483][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.282483][ T10] netlink_unicast+0x449/0x710 [ 2546.282483][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.282483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.282483][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.282483][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.282483][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.282483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.282483][ T10] [ 2546.284609][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2546.284961][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2546.284961][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.284961][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.284961][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.284961][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.284961][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.284961][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.284961][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.284961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.284961][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.284961][ T10] netlink_unicast+0x449/0x710 [ 2546.284961][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.284961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.284961][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.284961][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.284961][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.284961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.284961][ T10] [ 2546.287183][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2546.287183][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.287183][ T10] ipv6_find_idev+0x102/0x170 [ 2546.287183][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.287183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.287183][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.287183][ T10] netlink_unicast+0x449/0x710 [ 2546.287183][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.287183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.287183][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.287183][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.287183][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.287183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.287183][ T10] [ 2546.289078][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2546.289078][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.289078][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.289078][ T10] ipv6_find_idev+0x102/0x170 [ 2546.289078][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.289078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.289078][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.289078][ T10] netlink_unicast+0x449/0x710 [ 2546.289078][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.289078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.289078][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.289078][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.289078][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.289078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.289078][ T10] [ 2546.291170][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2546.291457][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2546.291457][ T10] netdev_get_by_index+0x5e/0x80 [ 2546.291457][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2546.291457][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2546.291457][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2546.291457][ T10] ipv6_add_addr+0x411/0x2000 [ 2546.291457][ T10] inet6_addr_add+0x30e/0xa40 [ 2546.291457][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2546.291457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.291457][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.291457][ T10] netlink_unicast+0x449/0x710 [ 2546.291457][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.291457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.291457][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.291457][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.291457][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.291457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.291457][ T10] [ 2546.293841][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2546.293841][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2546.293841][ T10] ipv6_find_idev+0x102/0x170 [ 2546.293841][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.293841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.293841][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.293841][ T10] netlink_unicast+0x449/0x710 [ 2546.293841][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.293841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.293841][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.293841][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.293841][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.293841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.293841][ T10] [ 2546.295551][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2546.295551][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2546.295551][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2546.295551][ T10] ipv6_find_idev+0x102/0x170 [ 2546.295551][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2546.295551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2546.295551][ T10] netlink_rcv_skb+0x130/0x360 [ 2546.295551][ T10] netlink_unicast+0x449/0x710 [ 2546.295551][ T10] netlink_sendmsg+0x723/0xbe0 [ 2546.295551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2546.295551][ T10] ___sys_sendmsg+0xee/0x170 [ 2546.295551][ T10] __sys_sendmsg+0xcd/0x170 [ 2546.295551][ T10] do_syscall_64+0xc6/0x1e0 [ 2546.295551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2546.295551][ T10] [ 2556.427696][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2556.428056][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2556.428056][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.428056][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.428056][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.428056][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.428056][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.428056][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.428056][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.428056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.428056][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.428056][ T10] netlink_unicast+0x449/0x710 [ 2556.428056][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.428056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.428056][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.428056][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.428056][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.428056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.428056][ T10] [ 2556.430292][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2556.430292][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.430292][ T10] ipv6_find_idev+0x102/0x170 [ 2556.430292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.430292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.430292][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.430292][ T10] netlink_unicast+0x449/0x710 [ 2556.430292][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.430292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.430292][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.430292][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.430292][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.430292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.430292][ T10] [ 2556.432045][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2556.432045][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.432045][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.432045][ T10] ipv6_find_idev+0x102/0x170 [ 2556.432045][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.432045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.432045][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.432045][ T10] netlink_unicast+0x449/0x710 [ 2556.432045][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.432045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.432045][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.432045][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.432045][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.432045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.432045][ T10] [ 2556.434432][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2556.434816][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2556.434816][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.434816][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.434816][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.434816][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.434816][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.434816][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.434816][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.434816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.434816][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.434816][ T10] netlink_unicast+0x449/0x710 [ 2556.434816][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.434816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.434816][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.434816][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.434816][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.434816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.434816][ T10] [ 2556.437006][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2556.437006][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.437006][ T10] ipv6_find_idev+0x102/0x170 [ 2556.437006][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.437006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.437006][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.437006][ T10] netlink_unicast+0x449/0x710 [ 2556.437006][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.437006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.437006][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.437006][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.437006][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.437006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.437006][ T10] [ 2556.438713][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2556.438713][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.438713][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.438713][ T10] ipv6_find_idev+0x102/0x170 [ 2556.438713][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.438713][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.438713][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.438713][ T10] netlink_unicast+0x449/0x710 [ 2556.438713][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.438713][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.438713][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.438713][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.438713][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.438713][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.438713][ T10] [ 2556.440867][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2556.441147][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2556.441147][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.441147][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.441147][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.441147][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.441147][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.441147][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.441147][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.441147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.441147][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.441147][ T10] netlink_unicast+0x449/0x710 [ 2556.441147][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.441147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.441147][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.441147][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.441147][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.441147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.441147][ T10] [ 2556.443555][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2556.443555][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.443555][ T10] ipv6_find_idev+0x102/0x170 [ 2556.443555][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.443555][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.443555][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.443555][ T10] netlink_unicast+0x449/0x710 [ 2556.443555][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.443555][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.443555][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.443555][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.443555][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.443555][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.443555][ T10] [ 2556.445526][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2556.445526][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.445526][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.445526][ T10] ipv6_find_idev+0x102/0x170 [ 2556.445526][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.445526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.445526][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.445526][ T10] netlink_unicast+0x449/0x710 [ 2556.445526][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.445526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.445526][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.445526][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.445526][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.445526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.445526][ T10] [ 2556.447680][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2556.447975][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2556.447975][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.447975][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.447975][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.447975][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.447975][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.447975][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.447975][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.447975][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.447975][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.447975][ T10] netlink_unicast+0x449/0x710 [ 2556.447975][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.447975][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.447975][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.447975][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.447975][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.447975][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.447975][ T10] [ 2556.450364][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2556.450364][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.450364][ T10] ipv6_find_idev+0x102/0x170 [ 2556.450364][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.450364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.450364][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.450364][ T10] netlink_unicast+0x449/0x710 [ 2556.450364][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.450364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.450364][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.450364][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.450364][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.450364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.450364][ T10] [ 2556.452294][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2556.452294][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.452294][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.452294][ T10] ipv6_find_idev+0x102/0x170 [ 2556.452294][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.452294][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.452294][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.452294][ T10] netlink_unicast+0x449/0x710 [ 2556.452294][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.452294][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.452294][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.452294][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.452294][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.452294][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.452294][ T10] [ 2556.454458][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2556.454883][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2556.454883][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.454883][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.454883][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.454883][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.454883][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.454883][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.454883][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.454883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.454883][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.454883][ T10] netlink_unicast+0x449/0x710 [ 2556.454883][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.454883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.454883][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.454883][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.454883][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.454883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.454883][ T10] [ 2556.457213][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2556.457213][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.457213][ T10] ipv6_find_idev+0x102/0x170 [ 2556.457213][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.457213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.457213][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.457213][ T10] netlink_unicast+0x449/0x710 [ 2556.457213][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.457213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.457213][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.457213][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.457213][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.457213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.457213][ T10] [ 2556.459095][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2556.459095][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.459095][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.459095][ T10] ipv6_find_idev+0x102/0x170 [ 2556.459095][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.459095][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.459095][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.459095][ T10] netlink_unicast+0x449/0x710 [ 2556.459095][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.459095][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.459095][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.459095][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.459095][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.459095][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.459095][ T10] [ 2556.461201][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2556.461488][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2556.461488][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.461488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.461488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.461488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.461488][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.461488][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.461488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.461488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.461488][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.461488][ T10] netlink_unicast+0x449/0x710 [ 2556.461488][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.461488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.461488][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.461488][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.461488][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.461488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.461488][ T10] [ 2556.463899][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2556.463899][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.463899][ T10] ipv6_find_idev+0x102/0x170 [ 2556.463899][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.463899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.463899][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.463899][ T10] netlink_unicast+0x449/0x710 [ 2556.463899][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.463899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.463899][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.463899][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.463899][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.463899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.463899][ T10] [ 2556.465599][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2556.465599][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.465599][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.465599][ T10] ipv6_find_idev+0x102/0x170 [ 2556.465599][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.465599][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.465599][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.465599][ T10] netlink_unicast+0x449/0x710 [ 2556.465599][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.465599][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.465599][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.465599][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.465599][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.465599][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.465599][ T10] [ 2556.467515][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2556.467842][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2556.467842][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.467842][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.467842][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.467842][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.467842][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.467842][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.467842][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.467842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.467842][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.467842][ T10] netlink_unicast+0x449/0x710 [ 2556.467842][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.467842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.467842][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.467842][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.467842][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.467842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.467842][ T10] [ 2556.470277][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2556.470277][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.470277][ T10] ipv6_find_idev+0x102/0x170 [ 2556.470277][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.470277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.470277][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.470277][ T10] netlink_unicast+0x449/0x710 [ 2556.470277][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.470277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.470277][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.470277][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.470277][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.470277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.470277][ T10] [ 2556.472176][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2556.472176][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.472176][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.472176][ T10] ipv6_find_idev+0x102/0x170 [ 2556.472176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.472176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.472176][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.472176][ T10] netlink_unicast+0x449/0x710 [ 2556.472176][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.472176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.472176][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.472176][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.472176][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.472176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.472176][ T10] [ 2556.474259][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2556.474550][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2556.474550][ T10] netdev_get_by_index+0x5e/0x80 [ 2556.474550][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2556.474550][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2556.474550][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2556.474550][ T10] ipv6_add_addr+0x411/0x2000 [ 2556.474550][ T10] inet6_addr_add+0x30e/0xa40 [ 2556.474550][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2556.474550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.474550][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.474550][ T10] netlink_unicast+0x449/0x710 [ 2556.474550][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.474550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.474550][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.474550][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.474550][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.474550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.474550][ T10] [ 2556.476777][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2556.476777][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2556.476777][ T10] ipv6_find_idev+0x102/0x170 [ 2556.476777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.476777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.476777][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.476777][ T10] netlink_unicast+0x449/0x710 [ 2556.476777][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.476777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.476777][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.476777][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.476777][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.476777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.476777][ T10] [ 2556.478483][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2556.478483][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2556.478483][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2556.478483][ T10] ipv6_find_idev+0x102/0x170 [ 2556.478483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2556.478483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2556.478483][ T10] netlink_rcv_skb+0x130/0x360 [ 2556.478483][ T10] netlink_unicast+0x449/0x710 [ 2556.478483][ T10] netlink_sendmsg+0x723/0xbe0 [ 2556.478483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2556.478483][ T10] ___sys_sendmsg+0xee/0x170 [ 2556.478483][ T10] __sys_sendmsg+0xcd/0x170 [ 2556.478483][ T10] do_syscall_64+0xc6/0x1e0 [ 2556.478483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2556.478483][ T10] [ 2566.635686][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2566.636037][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2566.636037][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.636037][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.636037][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.636037][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.636037][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.636037][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.636037][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.636037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.636037][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.636037][ T10] netlink_unicast+0x449/0x710 [ 2566.636037][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.636037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.636037][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.636037][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.636037][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.636037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.636037][ T10] [ 2566.638284][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2566.638284][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.638284][ T10] ipv6_find_idev+0x102/0x170 [ 2566.638284][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.638284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.638284][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.638284][ T10] netlink_unicast+0x449/0x710 [ 2566.638284][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.638284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.638284][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.638284][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.638284][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.638284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.638284][ T10] [ 2566.639983][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2566.639983][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.639983][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.639983][ T10] ipv6_find_idev+0x102/0x170 [ 2566.639983][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.639983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.639983][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.639983][ T10] netlink_unicast+0x449/0x710 [ 2566.639983][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.639983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.639983][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.639983][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.639983][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.639983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.639983][ T10] [ 2566.641871][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2566.642167][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2566.642167][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.642167][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.642167][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.642167][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.642167][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.642167][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.642167][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.642167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.642167][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.642167][ T10] netlink_unicast+0x449/0x710 [ 2566.642167][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.642167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.642167][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.642167][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.642167][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.642167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.642167][ T10] [ 2566.644429][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2566.644429][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.644429][ T10] ipv6_find_idev+0x102/0x170 [ 2566.644429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.644429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.644429][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.644429][ T10] netlink_unicast+0x449/0x710 [ 2566.644429][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.644429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.644429][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.644429][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.644429][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.644429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.644429][ T10] [ 2566.646143][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2566.646143][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.646143][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.646143][ T10] ipv6_find_idev+0x102/0x170 [ 2566.646143][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.646143][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.646143][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.646143][ T10] netlink_unicast+0x449/0x710 [ 2566.646143][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.646143][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.646143][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.646143][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.646143][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.646143][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.646143][ T10] [ 2566.648027][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2566.648329][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2566.648329][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.648329][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.648329][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.648329][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.648329][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.648329][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.648329][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.648329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.648329][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.648329][ T10] netlink_unicast+0x449/0x710 [ 2566.648329][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.648329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.648329][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.648329][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.648329][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.648329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.648329][ T10] [ 2566.650709][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2566.650709][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.650709][ T10] ipv6_find_idev+0x102/0x170 [ 2566.650709][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.650709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.650709][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.650709][ T10] netlink_unicast+0x449/0x710 [ 2566.650709][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.650709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.650709][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.650709][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.650709][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.650709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.650709][ T10] [ 2566.652710][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2566.652710][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.652710][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.652710][ T10] ipv6_find_idev+0x102/0x170 [ 2566.652710][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.652710][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.652710][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.652710][ T10] netlink_unicast+0x449/0x710 [ 2566.652710][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.652710][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.652710][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.652710][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.652710][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.652710][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.652710][ T10] [ 2566.654807][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2566.655099][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2566.655099][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.655099][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.655099][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.655099][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.655099][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.655099][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.655099][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.655099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.655099][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.655099][ T10] netlink_unicast+0x449/0x710 [ 2566.655099][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.655099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.655099][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.655099][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.655099][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.655099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.655099][ T10] [ 2566.657408][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2566.657408][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.657408][ T10] ipv6_find_idev+0x102/0x170 [ 2566.657408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.657408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.657408][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.657408][ T10] netlink_unicast+0x449/0x710 [ 2566.657408][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.657408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.657408][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.657408][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.657408][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.657408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.657408][ T10] [ 2566.659124][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2566.659124][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.659124][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.659124][ T10] ipv6_find_idev+0x102/0x170 [ 2566.659124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.659124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.659124][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.659124][ T10] netlink_unicast+0x449/0x710 [ 2566.659124][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.659124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.659124][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.659124][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.659124][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.659124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.659124][ T10] [ 2566.661151][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2566.661439][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2566.661439][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.661439][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.661439][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.661439][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.661439][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.661439][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.661439][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.661439][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.661439][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.661439][ T10] netlink_unicast+0x449/0x710 [ 2566.661439][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.661439][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.661439][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.661439][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.661439][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.661439][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.661439][ T10] [ 2566.663884][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2566.663884][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.663884][ T10] ipv6_find_idev+0x102/0x170 [ 2566.663884][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.663884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.663884][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.663884][ T10] netlink_unicast+0x449/0x710 [ 2566.663884][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.663884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.663884][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.663884][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.663884][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.663884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.663884][ T10] [ 2566.665783][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2566.665783][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.665783][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.665783][ T10] ipv6_find_idev+0x102/0x170 [ 2566.665783][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.665783][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.665783][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.665783][ T10] netlink_unicast+0x449/0x710 [ 2566.665783][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.665783][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.665783][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.665783][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.665783][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.665783][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.665783][ T10] [ 2566.667862][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2566.668214][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2566.668214][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.668214][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.668214][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.668214][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.668214][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.668214][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.668214][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.668214][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.668214][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.668214][ T10] netlink_unicast+0x449/0x710 [ 2566.668214][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.668214][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.668214][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.668214][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.668214][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.668214][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.668214][ T10] [ 2566.670488][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2566.670488][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.670488][ T10] ipv6_find_idev+0x102/0x170 [ 2566.670488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.670488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.670488][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.670488][ T10] netlink_unicast+0x449/0x710 [ 2566.670488][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.670488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.670488][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.670488][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.670488][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.670488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.670488][ T10] [ 2566.672209][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2566.672209][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.672209][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.672209][ T10] ipv6_find_idev+0x102/0x170 [ 2566.672209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.672209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.672209][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.672209][ T10] netlink_unicast+0x449/0x710 [ 2566.672209][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.672209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.672209][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.672209][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.672209][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.672209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.672209][ T10] [ 2566.674124][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2566.674415][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2566.674415][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.674415][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.674415][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.674415][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.674415][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.674415][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.674415][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.674415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.674415][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.674415][ T10] netlink_unicast+0x449/0x710 [ 2566.674415][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.674415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.674415][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.674415][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.674415][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.674415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.674415][ T10] [ 2566.676810][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2566.676810][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.676810][ T10] ipv6_find_idev+0x102/0x170 [ 2566.676810][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.676810][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.676810][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.676810][ T10] netlink_unicast+0x449/0x710 [ 2566.676810][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.676810][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.676810][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.676810][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.676810][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.676810][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.676810][ T10] [ 2566.678782][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2566.678782][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.678782][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.678782][ T10] ipv6_find_idev+0x102/0x170 [ 2566.678782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.678782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.678782][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.678782][ T10] netlink_unicast+0x449/0x710 [ 2566.678782][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.678782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.678782][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.678782][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.678782][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.678782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.678782][ T10] [ 2566.680887][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2566.681241][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2566.681241][ T10] netdev_get_by_index+0x5e/0x80 [ 2566.681241][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2566.681241][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2566.681241][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2566.681241][ T10] ipv6_add_addr+0x411/0x2000 [ 2566.681241][ T10] inet6_addr_add+0x30e/0xa40 [ 2566.681241][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2566.681241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.681241][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.681241][ T10] netlink_unicast+0x449/0x710 [ 2566.681241][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.681241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.681241][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.681241][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.681241][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.681241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.681241][ T10] [ 2566.683702][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2566.683702][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2566.683702][ T10] ipv6_find_idev+0x102/0x170 [ 2566.683702][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.683702][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.683702][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.683702][ T10] netlink_unicast+0x449/0x710 [ 2566.683702][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.683702][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.683702][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.683702][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.683702][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.683702][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.683702][ T10] [ 2566.685648][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2566.685648][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2566.685648][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2566.685648][ T10] ipv6_find_idev+0x102/0x170 [ 2566.685648][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2566.685648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2566.685648][ T10] netlink_rcv_skb+0x130/0x360 [ 2566.685648][ T10] netlink_unicast+0x449/0x710 [ 2566.685648][ T10] netlink_sendmsg+0x723/0xbe0 [ 2566.685648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2566.685648][ T10] ___sys_sendmsg+0xee/0x170 [ 2566.685648][ T10] __sys_sendmsg+0xcd/0x170 [ 2566.685648][ T10] do_syscall_64+0xc6/0x1e0 [ 2566.685648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2566.685648][ T10] [ 2576.779742][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2576.780094][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2576.780094][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.780094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.780094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.780094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.780094][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.780094][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.780094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.780094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.780094][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.780094][ T10] netlink_unicast+0x449/0x710 [ 2576.780094][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.780094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.780094][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.780094][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.780094][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.780094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.780094][ T10] [ 2576.782362][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2576.782362][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.782362][ T10] ipv6_find_idev+0x102/0x170 [ 2576.782362][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.782362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.782362][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.782362][ T10] netlink_unicast+0x449/0x710 [ 2576.782362][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.782362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.782362][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.782362][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.782362][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.782362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.782362][ T10] [ 2576.784089][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2576.784089][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.784089][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.784089][ T10] ipv6_find_idev+0x102/0x170 [ 2576.784089][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.784089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.784089][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.784089][ T10] netlink_unicast+0x449/0x710 [ 2576.784089][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.784089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.784089][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.784089][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.784089][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.784089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.784089][ T10] [ 2576.785940][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2576.786235][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2576.786235][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.786235][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.786235][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.786235][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.786235][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.786235][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.786235][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.786235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.786235][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.786235][ T10] netlink_unicast+0x449/0x710 [ 2576.786235][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.786235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.786235][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.786235][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.786235][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.786235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.786235][ T10] [ 2576.788442][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2576.788442][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.788442][ T10] ipv6_find_idev+0x102/0x170 [ 2576.788442][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.788442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.788442][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.788442][ T10] netlink_unicast+0x449/0x710 [ 2576.788442][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.788442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.788442][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.788442][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.788442][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.788442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.788442][ T10] [ 2576.790135][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2576.790135][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.790135][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.790135][ T10] ipv6_find_idev+0x102/0x170 [ 2576.790135][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.790135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.790135][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.790135][ T10] netlink_unicast+0x449/0x710 [ 2576.790135][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.790135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.790135][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.790135][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.790135][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.790135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.790135][ T10] [ 2576.792007][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2576.792291][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2576.792291][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.792291][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.792291][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.792291][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.792291][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.792291][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.792291][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.792291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.792291][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.792291][ T10] netlink_unicast+0x449/0x710 [ 2576.792291][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.792291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.792291][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.792291][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.792291][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.792291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.792291][ T10] [ 2576.794481][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2576.794481][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.794481][ T10] ipv6_find_idev+0x102/0x170 [ 2576.794481][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.794481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.794481][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.794481][ T10] netlink_unicast+0x449/0x710 [ 2576.794481][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.794481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.794481][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.794481][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.794481][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.794481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.794481][ T10] [ 2576.796166][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2576.796166][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.796166][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.796166][ T10] ipv6_find_idev+0x102/0x170 [ 2576.796166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.796166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.796166][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.796166][ T10] netlink_unicast+0x449/0x710 [ 2576.796166][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.796166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.796166][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.796166][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.796166][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.796166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.796166][ T10] [ 2576.798022][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2576.798307][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2576.798307][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.798307][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.798307][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.798307][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.798307][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.798307][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.798307][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.798307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.798307][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.798307][ T10] netlink_unicast+0x449/0x710 [ 2576.798307][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.798307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.798307][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.798307][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.798307][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.798307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.798307][ T10] [ 2576.800497][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2576.800497][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.800497][ T10] ipv6_find_idev+0x102/0x170 [ 2576.800497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.800497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.800497][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.800497][ T10] netlink_unicast+0x449/0x710 [ 2576.800497][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.800497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.800497][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.800497][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.800497][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.800497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.800497][ T10] [ 2576.802200][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2576.802200][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.802200][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.802200][ T10] ipv6_find_idev+0x102/0x170 [ 2576.802200][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.802200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.802200][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.802200][ T10] netlink_unicast+0x449/0x710 [ 2576.802200][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.802200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.802200][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.802200][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.802200][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.802200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.802200][ T10] [ 2576.804101][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2576.804387][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2576.804387][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.804387][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.804387][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.804387][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.804387][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.804387][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.804387][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.804387][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.804387][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.804387][ T10] netlink_unicast+0x449/0x710 [ 2576.804387][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.804387][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.804387][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.804387][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.804387][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.804387][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.804387][ T10] [ 2576.806604][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2576.806604][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.806604][ T10] ipv6_find_idev+0x102/0x170 [ 2576.806604][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.806604][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.806604][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.806604][ T10] netlink_unicast+0x449/0x710 [ 2576.806604][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.806604][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.806604][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.806604][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.806604][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.806604][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.806604][ T10] [ 2576.808480][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2576.808480][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.808480][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.808480][ T10] ipv6_find_idev+0x102/0x170 [ 2576.808480][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.808480][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.808480][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.808480][ T10] netlink_unicast+0x449/0x710 [ 2576.808480][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.808480][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.808480][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.808480][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.808480][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.808480][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.808480][ T10] [ 2576.810610][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2576.810952][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2576.810952][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.810952][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.810952][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.810952][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.810952][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.810952][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.810952][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.810952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.810952][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.810952][ T10] netlink_unicast+0x449/0x710 [ 2576.810952][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.810952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.810952][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.810952][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.810952][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.810952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.810952][ T10] [ 2576.813355][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2576.813355][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.813355][ T10] ipv6_find_idev+0x102/0x170 [ 2576.813355][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.813355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.813355][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.813355][ T10] netlink_unicast+0x449/0x710 [ 2576.813355][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.813355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.813355][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.813355][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.813355][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.813355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.813355][ T10] [ 2576.815250][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2576.815250][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.815250][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.815250][ T10] ipv6_find_idev+0x102/0x170 [ 2576.815250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.815250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.815250][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.815250][ T10] netlink_unicast+0x449/0x710 [ 2576.815250][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.815250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.815250][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.815250][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.815250][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.815250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.815250][ T10] [ 2576.817431][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2576.817774][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2576.817774][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.817774][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.817774][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.817774][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.817774][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.817774][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.817774][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.817774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.817774][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.817774][ T10] netlink_unicast+0x449/0x710 [ 2576.817774][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.817774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.817774][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.817774][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.817774][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.817774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.817774][ T10] [ 2576.820104][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2576.820104][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.820104][ T10] ipv6_find_idev+0x102/0x170 [ 2576.820104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.820104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.820104][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.820104][ T10] netlink_unicast+0x449/0x710 [ 2576.820104][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.820104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.820104][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.820104][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.820104][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.820104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.820104][ T10] [ 2576.821942][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2576.821942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.821942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.821942][ T10] ipv6_find_idev+0x102/0x170 [ 2576.821942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.821942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.821942][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.821942][ T10] netlink_unicast+0x449/0x710 [ 2576.821942][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.821942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.821942][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.821942][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.821942][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.821942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.821942][ T10] [ 2576.823964][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2576.824249][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2576.824249][ T10] netdev_get_by_index+0x5e/0x80 [ 2576.824249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2576.824249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2576.824249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2576.824249][ T10] ipv6_add_addr+0x411/0x2000 [ 2576.824249][ T10] inet6_addr_add+0x30e/0xa40 [ 2576.824249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2576.824249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.824249][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.824249][ T10] netlink_unicast+0x449/0x710 [ 2576.824249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.824249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.824249][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.824249][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.824249][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.824249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.824249][ T10] [ 2576.826525][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2576.826525][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2576.826525][ T10] ipv6_find_idev+0x102/0x170 [ 2576.826525][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.826525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.826525][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.826525][ T10] netlink_unicast+0x449/0x710 [ 2576.826525][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.826525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.826525][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.826525][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.826525][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.826525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.826525][ T10] [ 2576.828322][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2576.828322][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2576.828322][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2576.828322][ T10] ipv6_find_idev+0x102/0x170 [ 2576.828322][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2576.828322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2576.828322][ T10] netlink_rcv_skb+0x130/0x360 [ 2576.828322][ T10] netlink_unicast+0x449/0x710 [ 2576.828322][ T10] netlink_sendmsg+0x723/0xbe0 [ 2576.828322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2576.828322][ T10] ___sys_sendmsg+0xee/0x170 [ 2576.828322][ T10] __sys_sendmsg+0xcd/0x170 [ 2576.828322][ T10] do_syscall_64+0xc6/0x1e0 [ 2576.828322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2576.828322][ T10] [ 2586.940755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2586.941141][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2586.941141][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.941141][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.941141][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.941141][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.941141][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.941141][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.941141][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.941141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.941141][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.941141][ T10] netlink_unicast+0x449/0x710 [ 2586.941141][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.941141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.941141][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.941141][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.941141][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.941141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.941141][ T10] [ 2586.943427][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2586.943427][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.943427][ T10] ipv6_find_idev+0x102/0x170 [ 2586.943427][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.943427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.943427][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.943427][ T10] netlink_unicast+0x449/0x710 [ 2586.943427][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.943427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.943427][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.943427][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.943427][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.943427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.943427][ T10] [ 2586.945201][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2586.945201][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.945201][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.945201][ T10] ipv6_find_idev+0x102/0x170 [ 2586.945201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.945201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.945201][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.945201][ T10] netlink_unicast+0x449/0x710 [ 2586.945201][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.945201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.945201][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.945201][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.945201][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.945201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.945201][ T10] [ 2586.947097][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2586.947397][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2586.947397][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.947397][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.947397][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.947397][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.947397][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.947397][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.947397][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.947397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.947397][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.947397][ T10] netlink_unicast+0x449/0x710 [ 2586.947397][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.947397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.947397][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.947397][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.947397][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.947397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.947397][ T10] [ 2586.949681][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2586.949681][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.949681][ T10] ipv6_find_idev+0x102/0x170 [ 2586.949681][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.949681][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.949681][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.949681][ T10] netlink_unicast+0x449/0x710 [ 2586.949681][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.949681][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.949681][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.949681][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.949681][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.949681][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.949681][ T10] [ 2586.951415][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2586.951415][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.951415][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.951415][ T10] ipv6_find_idev+0x102/0x170 [ 2586.951415][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.951415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.951415][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.951415][ T10] netlink_unicast+0x449/0x710 [ 2586.951415][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.951415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.951415][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.951415][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.951415][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.951415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.951415][ T10] [ 2586.953296][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2586.953588][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2586.953588][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.953588][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.953588][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.953588][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.953588][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.953588][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.953588][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.953588][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.953588][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.953588][ T10] netlink_unicast+0x449/0x710 [ 2586.953588][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.953588][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.953588][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.953588][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.953588][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.953588][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.953588][ T10] [ 2586.955852][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2586.955852][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.955852][ T10] ipv6_find_idev+0x102/0x170 [ 2586.955852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.955852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.955852][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.955852][ T10] netlink_unicast+0x449/0x710 [ 2586.955852][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.955852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.955852][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.955852][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.955852][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.955852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.955852][ T10] [ 2586.957592][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2586.957592][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.957592][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.957592][ T10] ipv6_find_idev+0x102/0x170 [ 2586.957592][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.957592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.957592][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.957592][ T10] netlink_unicast+0x449/0x710 [ 2586.957592][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.957592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.957592][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.957592][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.957592][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.957592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.957592][ T10] [ 2586.959507][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2586.959815][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2586.959815][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.959815][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.959815][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.959815][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.959815][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.959815][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.959815][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.959815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.959815][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.959815][ T10] netlink_unicast+0x449/0x710 [ 2586.959815][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.959815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.959815][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.959815][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.959815][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.959815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.959815][ T10] [ 2586.962095][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2586.962095][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.962095][ T10] ipv6_find_idev+0x102/0x170 [ 2586.962095][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.962095][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.962095][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.962095][ T10] netlink_unicast+0x449/0x710 [ 2586.962095][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.962095][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.962095][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.962095][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.962095][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.962095][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.962095][ T10] [ 2586.963857][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2586.963857][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.963857][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.963857][ T10] ipv6_find_idev+0x102/0x170 [ 2586.963857][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.963857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.963857][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.963857][ T10] netlink_unicast+0x449/0x710 [ 2586.963857][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.963857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.963857][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.963857][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.963857][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.963857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.963857][ T10] [ 2586.965768][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2586.966060][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2586.966060][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.966060][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.966060][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.966060][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.966060][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.966060][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.966060][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.966060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.966060][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.966060][ T10] netlink_unicast+0x449/0x710 [ 2586.966060][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.966060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.966060][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.966060][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.966060][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.966060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.966060][ T10] [ 2586.968324][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2586.968324][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.968324][ T10] ipv6_find_idev+0x102/0x170 [ 2586.968324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.968324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.968324][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.968324][ T10] netlink_unicast+0x449/0x710 [ 2586.968324][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.968324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.968324][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.968324][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.968324][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.968324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.968324][ T10] [ 2586.970084][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2586.970084][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.970084][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.970084][ T10] ipv6_find_idev+0x102/0x170 [ 2586.970084][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.970084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.970084][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.970084][ T10] netlink_unicast+0x449/0x710 [ 2586.970084][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.970084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.970084][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.970084][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.970084][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.970084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.970084][ T10] [ 2586.972511][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2586.972866][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2586.972866][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.972866][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.972866][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.972866][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.972866][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.972866][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.972866][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.972866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.972866][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.972866][ T10] netlink_unicast+0x449/0x710 [ 2586.972866][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.972866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.972866][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.972866][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.972866][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.972866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.972866][ T10] [ 2586.975142][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2586.975142][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.975142][ T10] ipv6_find_idev+0x102/0x170 [ 2586.975142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.975142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.975142][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.975142][ T10] netlink_unicast+0x449/0x710 [ 2586.975142][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.975142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.975142][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.975142][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.975142][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.975142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.975142][ T10] [ 2586.977105][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2586.977105][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.977105][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.977105][ T10] ipv6_find_idev+0x102/0x170 [ 2586.977105][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.977105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.977105][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.977105][ T10] netlink_unicast+0x449/0x710 [ 2586.977105][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.977105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.977105][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.977105][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.977105][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.977105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.977105][ T10] [ 2586.979252][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2586.979595][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2586.979595][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.979595][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.979595][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.979595][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.979595][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.979595][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.979595][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.979595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.979595][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.979595][ T10] netlink_unicast+0x449/0x710 [ 2586.979595][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.979595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.979595][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.979595][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.979595][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.979595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.979595][ T10] [ 2586.981971][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2586.981971][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.981971][ T10] ipv6_find_idev+0x102/0x170 [ 2586.981971][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.981971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.981971][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.981971][ T10] netlink_unicast+0x449/0x710 [ 2586.981971][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.981971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.981971][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.981971][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.981971][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.981971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.981971][ T10] [ 2586.983880][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2586.983880][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.983880][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.983880][ T10] ipv6_find_idev+0x102/0x170 [ 2586.983880][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.983880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.983880][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.983880][ T10] netlink_unicast+0x449/0x710 [ 2586.983880][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.983880][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.983880][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.983880][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.983880][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.983880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.983880][ T10] [ 2586.986126][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2586.986465][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2586.986465][ T10] netdev_get_by_index+0x5e/0x80 [ 2586.986465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2586.986465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2586.986465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2586.986465][ T10] ipv6_add_addr+0x411/0x2000 [ 2586.986465][ T10] inet6_addr_add+0x30e/0xa40 [ 2586.986465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2586.986465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.986465][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.986465][ T10] netlink_unicast+0x449/0x710 [ 2586.986465][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.986465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.986465][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.986465][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.986465][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.986465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.986465][ T10] [ 2586.988765][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2586.988765][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2586.988765][ T10] ipv6_find_idev+0x102/0x170 [ 2586.988765][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.988765][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.988765][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.988765][ T10] netlink_unicast+0x449/0x710 [ 2586.988765][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.988765][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.988765][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.988765][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.988765][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.988765][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.988765][ T10] [ 2586.990511][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2586.990511][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2586.990511][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2586.990511][ T10] ipv6_find_idev+0x102/0x170 [ 2586.990511][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2586.990511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2586.990511][ T10] netlink_rcv_skb+0x130/0x360 [ 2586.990511][ T10] netlink_unicast+0x449/0x710 [ 2586.990511][ T10] netlink_sendmsg+0x723/0xbe0 [ 2586.990511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2586.990511][ T10] ___sys_sendmsg+0xee/0x170 [ 2586.990511][ T10] __sys_sendmsg+0xcd/0x170 [ 2586.990511][ T10] do_syscall_64+0xc6/0x1e0 [ 2586.990511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2586.990511][ T10] [ 2597.123745][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2597.124116][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2597.124116][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.124116][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.124116][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.124116][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.124116][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.124116][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.124116][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.124116][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.124116][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.124116][ T10] netlink_unicast+0x449/0x710 [ 2597.124116][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.124116][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.124116][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.124116][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.124116][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.124116][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.124116][ T10] [ 2597.126429][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2597.126429][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.126429][ T10] ipv6_find_idev+0x102/0x170 [ 2597.126429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.126429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.126429][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.126429][ T10] netlink_unicast+0x449/0x710 [ 2597.126429][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.126429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.126429][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.126429][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.126429][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.126429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.126429][ T10] [ 2597.128212][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2597.128212][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.128212][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.128212][ T10] ipv6_find_idev+0x102/0x170 [ 2597.128212][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.128212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.128212][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.128212][ T10] netlink_unicast+0x449/0x710 [ 2597.128212][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.128212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.128212][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.128212][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.128212][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.128212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.128212][ T10] [ 2597.130151][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2597.130454][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2597.130454][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.130454][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.130454][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.130454][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.130454][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.130454][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.130454][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.130454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.130454][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.130454][ T10] netlink_unicast+0x449/0x710 [ 2597.130454][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.130454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.130454][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.130454][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.130454][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.130454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.130454][ T10] [ 2597.132711][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2597.132711][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.132711][ T10] ipv6_find_idev+0x102/0x170 [ 2597.132711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.132711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.132711][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.132711][ T10] netlink_unicast+0x449/0x710 [ 2597.132711][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.132711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.132711][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.132711][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.132711][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.132711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.132711][ T10] [ 2597.134579][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2597.134579][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.134579][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.134579][ T10] ipv6_find_idev+0x102/0x170 [ 2597.134579][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.134579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.134579][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.134579][ T10] netlink_unicast+0x449/0x710 [ 2597.134579][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.134579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.134579][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.134579][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.134579][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.134579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.134579][ T10] [ 2597.136843][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2597.137142][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2597.137142][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.137142][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.137142][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.137142][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.137142][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.137142][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.137142][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.137142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.137142][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.137142][ T10] netlink_unicast+0x449/0x710 [ 2597.137142][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.137142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.137142][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.137142][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.137142][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.137142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.137142][ T10] [ 2597.139646][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2597.139646][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.139646][ T10] ipv6_find_idev+0x102/0x170 [ 2597.139646][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.139646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.139646][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.139646][ T10] netlink_unicast+0x449/0x710 [ 2597.139646][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.139646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.139646][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.139646][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.139646][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.139646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.139646][ T10] [ 2597.141522][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2597.141522][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.141522][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.141522][ T10] ipv6_find_idev+0x102/0x170 [ 2597.141522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.141522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.141522][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.141522][ T10] netlink_unicast+0x449/0x710 [ 2597.141522][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.141522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.141522][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.141522][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.141522][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.141522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.141522][ T10] [ 2597.143588][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2597.143903][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2597.143903][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.143903][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.143903][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.143903][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.143903][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.143903][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.143903][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.143903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.143903][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.143903][ T10] netlink_unicast+0x449/0x710 [ 2597.143903][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.143903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.143903][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.143903][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.143903][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.143903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.143903][ T10] [ 2597.146459][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2597.146459][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.146459][ T10] ipv6_find_idev+0x102/0x170 [ 2597.146459][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.146459][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.146459][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.146459][ T10] netlink_unicast+0x449/0x710 [ 2597.146459][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.146459][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.146459][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.146459][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.146459][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.146459][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.146459][ T10] [ 2597.148435][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2597.148435][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.148435][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.148435][ T10] ipv6_find_idev+0x102/0x170 [ 2597.148435][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.148435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.148435][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.148435][ T10] netlink_unicast+0x449/0x710 [ 2597.148435][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.148435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.148435][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.148435][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.148435][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.148435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.148435][ T10] [ 2597.150536][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2597.150916][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2597.150916][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.150916][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.150916][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.150916][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.150916][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.150916][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.150916][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.150916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.150916][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.150916][ T10] netlink_unicast+0x449/0x710 [ 2597.150916][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.150916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.150916][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.150916][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.150916][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.150916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.150916][ T10] [ 2597.153249][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2597.153249][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.153249][ T10] ipv6_find_idev+0x102/0x170 [ 2597.153249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.153249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.153249][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.153249][ T10] netlink_unicast+0x449/0x710 [ 2597.153249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.153249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.153249][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.153249][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.153249][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.153249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.153249][ T10] [ 2597.155275][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2597.155275][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.155275][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.155275][ T10] ipv6_find_idev+0x102/0x170 [ 2597.155275][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.155275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.155275][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.155275][ T10] netlink_unicast+0x449/0x710 [ 2597.155275][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.155275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.155275][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.155275][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.155275][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.155275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.155275][ T10] [ 2597.157421][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2597.157773][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2597.157773][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.157773][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.157773][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.157773][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.157773][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.157773][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.157773][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.157773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.157773][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.157773][ T10] netlink_unicast+0x449/0x710 [ 2597.157773][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.157773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.157773][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.157773][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.157773][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.157773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.157773][ T10] [ 2597.160064][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2597.160064][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.160064][ T10] ipv6_find_idev+0x102/0x170 [ 2597.160064][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.160064][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.160064][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.160064][ T10] netlink_unicast+0x449/0x710 [ 2597.160064][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.160064][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.160064][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.160064][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.160064][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.160064][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.160064][ T10] [ 2597.161792][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2597.161792][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.161792][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.161792][ T10] ipv6_find_idev+0x102/0x170 [ 2597.161792][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.161792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.161792][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.161792][ T10] netlink_unicast+0x449/0x710 [ 2597.161792][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.161792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.161792][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.161792][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.161792][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.161792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.161792][ T10] [ 2597.163744][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2597.164094][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2597.164094][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.164094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.164094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.164094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.164094][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.164094][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.164094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.164094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.164094][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.164094][ T10] netlink_unicast+0x449/0x710 [ 2597.164094][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.164094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.164094][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.164094][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.164094][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.164094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.164094][ T10] [ 2597.166331][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2597.166331][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.166331][ T10] ipv6_find_idev+0x102/0x170 [ 2597.166331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.166331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.166331][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.166331][ T10] netlink_unicast+0x449/0x710 [ 2597.166331][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.166331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.166331][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.166331][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.166331][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.166331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.166331][ T10] [ 2597.168081][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2597.168081][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.168081][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.168081][ T10] ipv6_find_idev+0x102/0x170 [ 2597.168081][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.168081][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.168081][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.168081][ T10] netlink_unicast+0x449/0x710 [ 2597.168081][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.168081][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.168081][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.168081][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.168081][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.168081][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.168081][ T10] [ 2597.170097][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2597.170430][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2597.170430][ T10] netdev_get_by_index+0x5e/0x80 [ 2597.170430][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2597.170430][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2597.170430][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2597.170430][ T10] ipv6_add_addr+0x411/0x2000 [ 2597.170430][ T10] inet6_addr_add+0x30e/0xa40 [ 2597.170430][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2597.170430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.170430][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.170430][ T10] netlink_unicast+0x449/0x710 [ 2597.170430][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.170430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.170430][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.170430][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.170430][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.170430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.170430][ T10] [ 2597.172717][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2597.172717][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2597.172717][ T10] ipv6_find_idev+0x102/0x170 [ 2597.172717][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.172717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.172717][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.172717][ T10] netlink_unicast+0x449/0x710 [ 2597.172717][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.172717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.172717][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.172717][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.172717][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.172717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.172717][ T10] [ 2597.174623][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2597.174623][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2597.174623][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2597.174623][ T10] ipv6_find_idev+0x102/0x170 [ 2597.174623][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2597.174623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2597.174623][ T10] netlink_rcv_skb+0x130/0x360 [ 2597.174623][ T10] netlink_unicast+0x449/0x710 [ 2597.174623][ T10] netlink_sendmsg+0x723/0xbe0 [ 2597.174623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2597.174623][ T10] ___sys_sendmsg+0xee/0x170 [ 2597.174623][ T10] __sys_sendmsg+0xcd/0x170 [ 2597.174623][ T10] do_syscall_64+0xc6/0x1e0 [ 2597.174623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2597.174623][ T10] [ 2607.284660][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2607.285021][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2607.285021][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.285021][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.285021][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.285021][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.285021][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.285021][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.285021][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.285021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.285021][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.285021][ T10] netlink_unicast+0x449/0x710 [ 2607.285021][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.285021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.285021][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.285021][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.285021][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.285021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.285021][ T10] [ 2607.287262][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2607.287262][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.287262][ T10] ipv6_find_idev+0x102/0x170 [ 2607.287262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.287262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.287262][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.287262][ T10] netlink_unicast+0x449/0x710 [ 2607.287262][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.287262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.287262][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.287262][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.287262][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.287262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.287262][ T10] [ 2607.289003][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2607.289003][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.289003][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.289003][ T10] ipv6_find_idev+0x102/0x170 [ 2607.289003][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.289003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.289003][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.289003][ T10] netlink_unicast+0x449/0x710 [ 2607.289003][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.289003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.289003][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.289003][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.289003][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.289003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.289003][ T10] [ 2607.290894][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2607.291191][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2607.291191][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.291191][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.291191][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.291191][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.291191][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.291191][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.291191][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.291191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.291191][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.291191][ T10] netlink_unicast+0x449/0x710 [ 2607.291191][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.291191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.291191][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.291191][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.291191][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.291191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.291191][ T10] [ 2607.293396][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2607.293396][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.293396][ T10] ipv6_find_idev+0x102/0x170 [ 2607.293396][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.293396][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.293396][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.293396][ T10] netlink_unicast+0x449/0x710 [ 2607.293396][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.293396][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.293396][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.293396][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.293396][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.293396][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.293396][ T10] [ 2607.295123][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2607.295123][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.295123][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.295123][ T10] ipv6_find_idev+0x102/0x170 [ 2607.295123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.295123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.295123][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.295123][ T10] netlink_unicast+0x449/0x710 [ 2607.295123][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.295123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.295123][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.295123][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.295123][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.295123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.295123][ T10] [ 2607.296989][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2607.297277][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2607.297277][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.297277][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.297277][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.297277][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.297277][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.297277][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.297277][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.297277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.297277][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.297277][ T10] netlink_unicast+0x449/0x710 [ 2607.297277][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.297277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.297277][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.297277][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.297277][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.297277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.297277][ T10] [ 2607.299519][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2607.299519][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.299519][ T10] ipv6_find_idev+0x102/0x170 [ 2607.299519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.299519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.299519][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.299519][ T10] netlink_unicast+0x449/0x710 [ 2607.299519][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.299519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.299519][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.299519][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.299519][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.299519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.299519][ T10] [ 2607.301357][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2607.301357][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.301357][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.301357][ T10] ipv6_find_idev+0x102/0x170 [ 2607.301357][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.301357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.301357][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.301357][ T10] netlink_unicast+0x449/0x710 [ 2607.301357][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.301357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.301357][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.301357][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.301357][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.301357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.301357][ T10] [ 2607.303378][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2607.303669][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2607.303669][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.303669][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.303669][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.303669][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.303669][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.303669][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.303669][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.303669][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.303669][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.303669][ T10] netlink_unicast+0x449/0x710 [ 2607.303669][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.303669][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.303669][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.303669][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.303669][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.303669][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.303669][ T10] [ 2607.305959][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2607.305959][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.305959][ T10] ipv6_find_idev+0x102/0x170 [ 2607.305959][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.305959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.305959][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.305959][ T10] netlink_unicast+0x449/0x710 [ 2607.305959][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.305959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.305959][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.305959][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.305959][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.305959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.305959][ T10] [ 2607.307874][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2607.307874][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.307874][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.307874][ T10] ipv6_find_idev+0x102/0x170 [ 2607.307874][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.307874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.307874][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.307874][ T10] netlink_unicast+0x449/0x710 [ 2607.307874][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.307874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.307874][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.307874][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.307874][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.307874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.307874][ T10] [ 2607.310362][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2607.310657][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2607.310657][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.310657][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.310657][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.310657][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.310657][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.310657][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.310657][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.310657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.310657][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.310657][ T10] netlink_unicast+0x449/0x710 [ 2607.310657][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.310657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.310657][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.310657][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.310657][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.310657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.310657][ T10] [ 2607.312935][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2607.312935][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.312935][ T10] ipv6_find_idev+0x102/0x170 [ 2607.312935][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.312935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.312935][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.312935][ T10] netlink_unicast+0x449/0x710 [ 2607.312935][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.312935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.312935][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.312935][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.312935][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.312935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.312935][ T10] [ 2607.314789][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2607.314789][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.314789][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.314789][ T10] ipv6_find_idev+0x102/0x170 [ 2607.314789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.314789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.314789][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.314789][ T10] netlink_unicast+0x449/0x710 [ 2607.314789][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.314789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.314789][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.314789][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.314789][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.314789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.314789][ T10] [ 2607.316858][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2607.317157][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2607.317157][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.317157][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.317157][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.317157][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.317157][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.317157][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.317157][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.317157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.317157][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.317157][ T10] netlink_unicast+0x449/0x710 [ 2607.317157][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.317157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.317157][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.317157][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.317157][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.317157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.317157][ T10] [ 2607.319451][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2607.319451][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.319451][ T10] ipv6_find_idev+0x102/0x170 [ 2607.319451][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.319451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.319451][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.319451][ T10] netlink_unicast+0x449/0x710 [ 2607.319451][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.319451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.319451][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.319451][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.319451][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.319451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.319451][ T10] [ 2607.321150][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2607.321150][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.321150][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.321150][ T10] ipv6_find_idev+0x102/0x170 [ 2607.321150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.321150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.321150][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.321150][ T10] netlink_unicast+0x449/0x710 [ 2607.321150][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.321150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.321150][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.321150][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.321150][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.321150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.321150][ T10] [ 2607.323130][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2607.323417][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2607.323417][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.323417][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.323417][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.323417][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.323417][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.323417][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.323417][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.323417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.323417][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.323417][ T10] netlink_unicast+0x449/0x710 [ 2607.323417][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.323417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.323417][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.323417][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.323417][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.323417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.323417][ T10] [ 2607.325882][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2607.325882][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.325882][ T10] ipv6_find_idev+0x102/0x170 [ 2607.325882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.325882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.325882][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.325882][ T10] netlink_unicast+0x449/0x710 [ 2607.325882][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.325882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.325882][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.325882][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.325882][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.325882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.325882][ T10] [ 2607.327731][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2607.327731][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.327731][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.327731][ T10] ipv6_find_idev+0x102/0x170 [ 2607.327731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.327731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.327731][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.327731][ T10] netlink_unicast+0x449/0x710 [ 2607.327731][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.327731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.327731][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.327731][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.327731][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.327731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.327731][ T10] [ 2607.329921][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2607.330282][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2607.330282][ T10] netdev_get_by_index+0x5e/0x80 [ 2607.330282][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2607.330282][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2607.330282][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2607.330282][ T10] ipv6_add_addr+0x411/0x2000 [ 2607.330282][ T10] inet6_addr_add+0x30e/0xa40 [ 2607.330282][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2607.330282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.330282][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.330282][ T10] netlink_unicast+0x449/0x710 [ 2607.330282][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.330282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.330282][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.330282][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.330282][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.330282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.330282][ T10] [ 2607.332696][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2607.332696][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2607.332696][ T10] ipv6_find_idev+0x102/0x170 [ 2607.332696][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.332696][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.332696][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.332696][ T10] netlink_unicast+0x449/0x710 [ 2607.332696][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.332696][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.332696][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.332696][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.332696][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.332696][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.332696][ T10] [ 2607.334688][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2607.334688][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2607.334688][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2607.334688][ T10] ipv6_find_idev+0x102/0x170 [ 2607.334688][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2607.334688][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2607.334688][ T10] netlink_rcv_skb+0x130/0x360 [ 2607.334688][ T10] netlink_unicast+0x449/0x710 [ 2607.334688][ T10] netlink_sendmsg+0x723/0xbe0 [ 2607.334688][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2607.334688][ T10] ___sys_sendmsg+0xee/0x170 [ 2607.334688][ T10] __sys_sendmsg+0xcd/0x170 [ 2607.334688][ T10] do_syscall_64+0xc6/0x1e0 [ 2607.334688][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2607.334688][ T10] [ 2617.444843][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2617.445254][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2617.445254][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.445254][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.445254][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.445254][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.445254][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.445254][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.445254][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.445254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.445254][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.445254][ T10] netlink_unicast+0x449/0x710 [ 2617.445254][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.445254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.445254][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.445254][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.445254][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.445254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.445254][ T10] [ 2617.447482][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2617.447482][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.447482][ T10] ipv6_find_idev+0x102/0x170 [ 2617.447482][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.447482][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.447482][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.447482][ T10] netlink_unicast+0x449/0x710 [ 2617.447482][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.447482][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.447482][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.447482][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.447482][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.447482][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.447482][ T10] [ 2617.449204][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2617.449204][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.449204][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.449204][ T10] ipv6_find_idev+0x102/0x170 [ 2617.449204][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.449204][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.449204][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.449204][ T10] netlink_unicast+0x449/0x710 [ 2617.449204][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.449204][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.449204][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.449204][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.449204][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.449204][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.449204][ T10] [ 2617.451076][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2617.451373][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2617.451373][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.451373][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.451373][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.451373][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.451373][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.451373][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.451373][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.451373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.451373][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.451373][ T10] netlink_unicast+0x449/0x710 [ 2617.451373][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.451373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.451373][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.451373][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.451373][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.451373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.451373][ T10] [ 2617.453575][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2617.453575][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.453575][ T10] ipv6_find_idev+0x102/0x170 [ 2617.453575][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.453575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.453575][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.453575][ T10] netlink_unicast+0x449/0x710 [ 2617.453575][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.453575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.453575][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.453575][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.453575][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.453575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.453575][ T10] [ 2617.455272][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2617.455272][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.455272][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.455272][ T10] ipv6_find_idev+0x102/0x170 [ 2617.455272][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.455272][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.455272][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.455272][ T10] netlink_unicast+0x449/0x710 [ 2617.455272][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.455272][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.455272][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.455272][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.455272][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.455272][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.455272][ T10] [ 2617.457109][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2617.457390][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2617.457390][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.457390][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.457390][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.457390][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.457390][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.457390][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.457390][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.457390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.457390][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.457390][ T10] netlink_unicast+0x449/0x710 [ 2617.457390][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.457390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.457390][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.457390][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.457390][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.457390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.457390][ T10] [ 2617.459640][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2617.459640][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.459640][ T10] ipv6_find_idev+0x102/0x170 [ 2617.459640][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.459640][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.459640][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.459640][ T10] netlink_unicast+0x449/0x710 [ 2617.459640][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.459640][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.459640][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.459640][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.459640][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.459640][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.459640][ T10] [ 2617.461373][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2617.461373][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.461373][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.461373][ T10] ipv6_find_idev+0x102/0x170 [ 2617.461373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.461373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.461373][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.461373][ T10] netlink_unicast+0x449/0x710 [ 2617.461373][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.461373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.461373][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.461373][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.461373][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.461373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.461373][ T10] [ 2617.463284][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2617.463641][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2617.463641][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.463641][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.463641][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.463641][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.463641][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.463641][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.463641][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.463641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.463641][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.463641][ T10] netlink_unicast+0x449/0x710 [ 2617.463641][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.463641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.463641][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.463641][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.463641][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.463641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.463641][ T10] [ 2617.466025][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2617.466025][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.466025][ T10] ipv6_find_idev+0x102/0x170 [ 2617.466025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.466025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.466025][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.466025][ T10] netlink_unicast+0x449/0x710 [ 2617.466025][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.466025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.466025][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.466025][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.466025][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.466025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.466025][ T10] [ 2617.467686][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2617.467686][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.467686][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.467686][ T10] ipv6_find_idev+0x102/0x170 [ 2617.467686][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.467686][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.467686][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.467686][ T10] netlink_unicast+0x449/0x710 [ 2617.467686][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.467686][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.467686][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.467686][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.467686][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.467686][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.467686][ T10] [ 2617.469947][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2617.470231][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2617.470231][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.470231][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.470231][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.470231][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.470231][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.470231][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.470231][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.470231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.470231][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.470231][ T10] netlink_unicast+0x449/0x710 [ 2617.470231][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.470231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.470231][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.470231][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.470231][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.470231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.470231][ T10] [ 2617.472413][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2617.472413][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.472413][ T10] ipv6_find_idev+0x102/0x170 [ 2617.472413][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.472413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.472413][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.472413][ T10] netlink_unicast+0x449/0x710 [ 2617.472413][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.472413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.472413][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.472413][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.472413][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.472413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.472413][ T10] [ 2617.474107][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2617.474107][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.474107][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.474107][ T10] ipv6_find_idev+0x102/0x170 [ 2617.474107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.474107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.474107][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.474107][ T10] netlink_unicast+0x449/0x710 [ 2617.474107][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.474107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.474107][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.474107][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.474107][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.474107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.474107][ T10] [ 2617.475997][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2617.476291][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2617.476291][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.476291][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.476291][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.476291][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.476291][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.476291][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.476291][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.476291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.476291][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.476291][ T10] netlink_unicast+0x449/0x710 [ 2617.476291][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.476291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.476291][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.476291][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.476291][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.476291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.476291][ T10] [ 2617.478689][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2617.478689][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.478689][ T10] ipv6_find_idev+0x102/0x170 [ 2617.478689][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.478689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.478689][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.478689][ T10] netlink_unicast+0x449/0x710 [ 2617.478689][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.478689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.478689][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.478689][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.478689][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.478689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.478689][ T10] [ 2617.480515][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2617.480515][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.480515][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.480515][ T10] ipv6_find_idev+0x102/0x170 [ 2617.480515][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.480515][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.480515][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.480515][ T10] netlink_unicast+0x449/0x710 [ 2617.480515][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.480515][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.480515][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.480515][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.480515][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.480515][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.480515][ T10] [ 2617.482607][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2617.483031][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2617.483031][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.483031][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.483031][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.483031][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.483031][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.483031][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.483031][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.483031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.483031][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.483031][ T10] netlink_unicast+0x449/0x710 [ 2617.483031][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.483031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.483031][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.483031][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.483031][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.483031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.483031][ T10] [ 2617.485301][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2617.485301][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.485301][ T10] ipv6_find_idev+0x102/0x170 [ 2617.485301][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.485301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.485301][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.485301][ T10] netlink_unicast+0x449/0x710 [ 2617.485301][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.485301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.485301][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.485301][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.485301][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.485301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.485301][ T10] [ 2617.487220][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2617.487220][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.487220][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.487220][ T10] ipv6_find_idev+0x102/0x170 [ 2617.487220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.487220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.487220][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.487220][ T10] netlink_unicast+0x449/0x710 [ 2617.487220][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.487220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.487220][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.487220][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.487220][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.487220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.487220][ T10] [ 2617.489336][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2617.489627][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2617.489627][ T10] netdev_get_by_index+0x5e/0x80 [ 2617.489627][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2617.489627][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2617.489627][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2617.489627][ T10] ipv6_add_addr+0x411/0x2000 [ 2617.489627][ T10] inet6_addr_add+0x30e/0xa40 [ 2617.489627][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2617.489627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.489627][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.489627][ T10] netlink_unicast+0x449/0x710 [ 2617.489627][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.489627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.489627][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.489627][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.489627][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.489627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.489627][ T10] [ 2617.491907][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2617.491907][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2617.491907][ T10] ipv6_find_idev+0x102/0x170 [ 2617.491907][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.491907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.491907][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.491907][ T10] netlink_unicast+0x449/0x710 [ 2617.491907][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.491907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.491907][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.491907][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.491907][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.491907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.491907][ T10] [ 2617.493576][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2617.493576][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2617.493576][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2617.493576][ T10] ipv6_find_idev+0x102/0x170 [ 2617.493576][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2617.493576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2617.493576][ T10] netlink_rcv_skb+0x130/0x360 [ 2617.493576][ T10] netlink_unicast+0x449/0x710 [ 2617.493576][ T10] netlink_sendmsg+0x723/0xbe0 [ 2617.493576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2617.493576][ T10] ___sys_sendmsg+0xee/0x170 [ 2617.493576][ T10] __sys_sendmsg+0xcd/0x170 [ 2617.493576][ T10] do_syscall_64+0xc6/0x1e0 [ 2617.493576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2617.493576][ T10] [ 2627.636749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2627.637119][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2627.637119][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.637119][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.637119][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.637119][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.637119][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.637119][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.637119][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.637119][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.637119][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.637119][ T10] netlink_unicast+0x449/0x710 [ 2627.637119][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.637119][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.637119][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.637119][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.637119][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.637119][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.637119][ T10] [ 2627.639407][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2627.639407][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.639407][ T10] ipv6_find_idev+0x102/0x170 [ 2627.639407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.639407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.639407][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.639407][ T10] netlink_unicast+0x449/0x710 [ 2627.639407][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.639407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.639407][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.639407][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.639407][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.639407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.639407][ T10] [ 2627.641149][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2627.641149][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.641149][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.641149][ T10] ipv6_find_idev+0x102/0x170 [ 2627.641149][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.641149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.641149][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.641149][ T10] netlink_unicast+0x449/0x710 [ 2627.641149][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.641149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.641149][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.641149][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.641149][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.641149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.641149][ T10] [ 2627.643110][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2627.643411][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2627.643411][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.643411][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.643411][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.643411][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.643411][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.643411][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.643411][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.643411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.643411][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.643411][ T10] netlink_unicast+0x449/0x710 [ 2627.643411][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.643411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.643411][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.643411][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.643411][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.643411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.643411][ T10] [ 2627.645673][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2627.645673][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.645673][ T10] ipv6_find_idev+0x102/0x170 [ 2627.645673][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.645673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.645673][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.645673][ T10] netlink_unicast+0x449/0x710 [ 2627.645673][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.645673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.645673][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.645673][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.645673][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.645673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.645673][ T10] [ 2627.647421][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2627.647421][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.647421][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.647421][ T10] ipv6_find_idev+0x102/0x170 [ 2627.647421][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.647421][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.647421][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.647421][ T10] netlink_unicast+0x449/0x710 [ 2627.647421][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.647421][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.647421][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.647421][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.647421][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.647421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.647421][ T10] [ 2627.649498][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2627.649812][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2627.649812][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.649812][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.649812][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.649812][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.649812][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.649812][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.649812][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.649812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.649812][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.649812][ T10] netlink_unicast+0x449/0x710 [ 2627.649812][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.649812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.649812][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.649812][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.649812][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.649812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.649812][ T10] [ 2627.652269][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2627.652269][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.652269][ T10] ipv6_find_idev+0x102/0x170 [ 2627.652269][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.652269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.652269][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.652269][ T10] netlink_unicast+0x449/0x710 [ 2627.652269][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.652269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.652269][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.652269][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.652269][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.652269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.652269][ T10] [ 2627.654093][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2627.654093][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.654093][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.654093][ T10] ipv6_find_idev+0x102/0x170 [ 2627.654093][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.654093][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.654093][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.654093][ T10] netlink_unicast+0x449/0x710 [ 2627.654093][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.654093][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.654093][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.654093][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.654093][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.654093][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.654093][ T10] [ 2627.656340][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2627.656636][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2627.656636][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.656636][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.656636][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.656636][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.656636][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.656636][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.656636][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.656636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.656636][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.656636][ T10] netlink_unicast+0x449/0x710 [ 2627.656636][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.656636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.656636][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.656636][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.656636][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.656636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.656636][ T10] [ 2627.659035][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2627.659035][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.659035][ T10] ipv6_find_idev+0x102/0x170 [ 2627.659035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.659035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.659035][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.659035][ T10] netlink_unicast+0x449/0x710 [ 2627.659035][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.659035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.659035][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.659035][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.659035][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.659035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.659035][ T10] [ 2627.660774][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2627.660774][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.660774][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.660774][ T10] ipv6_find_idev+0x102/0x170 [ 2627.660774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.660774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.660774][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.660774][ T10] netlink_unicast+0x449/0x710 [ 2627.660774][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.660774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.660774][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.660774][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.660774][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.660774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.660774][ T10] [ 2627.663060][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2627.663688][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2627.663688][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.663688][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.663688][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.663688][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.663688][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.663688][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.663688][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.663688][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.663688][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.663688][ T10] netlink_unicast+0x449/0x710 [ 2627.663688][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.663688][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.663688][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.663688][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.663688][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.663688][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.663688][ T10] [ 2627.665935][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2627.665935][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.665935][ T10] ipv6_find_idev+0x102/0x170 [ 2627.665935][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.665935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.665935][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.665935][ T10] netlink_unicast+0x449/0x710 [ 2627.665935][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.665935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.665935][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.665935][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.665935][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.665935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.665935][ T10] [ 2627.667676][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2627.667676][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.667676][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.667676][ T10] ipv6_find_idev+0x102/0x170 [ 2627.667676][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.667676][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.667676][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.667676][ T10] netlink_unicast+0x449/0x710 [ 2627.667676][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.667676][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.667676][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.667676][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.667676][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.667676][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.667676][ T10] [ 2627.669566][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2627.669923][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2627.669923][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.669923][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.669923][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.669923][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.669923][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.669923][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.669923][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.669923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.669923][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.669923][ T10] netlink_unicast+0x449/0x710 [ 2627.669923][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.669923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.669923][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.669923][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.669923][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.669923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.669923][ T10] [ 2627.672184][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2627.672184][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.672184][ T10] ipv6_find_idev+0x102/0x170 [ 2627.672184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.672184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.672184][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.672184][ T10] netlink_unicast+0x449/0x710 [ 2627.672184][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.672184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.672184][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.672184][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.672184][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.672184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.672184][ T10] [ 2627.673934][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2627.673934][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.673934][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.673934][ T10] ipv6_find_idev+0x102/0x170 [ 2627.673934][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.673934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.673934][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.673934][ T10] netlink_unicast+0x449/0x710 [ 2627.673934][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.673934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.673934][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.673934][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.673934][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.673934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.673934][ T10] [ 2627.675908][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2627.676251][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2627.676251][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.676251][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.676251][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.676251][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.676251][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.676251][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.676251][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.676251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.676251][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.676251][ T10] netlink_unicast+0x449/0x710 [ 2627.676251][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.676251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.676251][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.676251][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.676251][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.676251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.676251][ T10] [ 2627.678563][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2627.678563][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.678563][ T10] ipv6_find_idev+0x102/0x170 [ 2627.678563][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.678563][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.678563][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.678563][ T10] netlink_unicast+0x449/0x710 [ 2627.678563][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.678563][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.678563][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.678563][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.678563][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.678563][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.678563][ T10] [ 2627.680310][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2627.680310][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.680310][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.680310][ T10] ipv6_find_idev+0x102/0x170 [ 2627.680310][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.680310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.680310][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.680310][ T10] netlink_unicast+0x449/0x710 [ 2627.680310][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.680310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.680310][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.680310][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.680310][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.680310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.680310][ T10] [ 2627.682262][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2627.682603][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2627.682603][ T10] netdev_get_by_index+0x5e/0x80 [ 2627.682603][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2627.682603][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2627.682603][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2627.682603][ T10] ipv6_add_addr+0x411/0x2000 [ 2627.682603][ T10] inet6_addr_add+0x30e/0xa40 [ 2627.682603][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2627.682603][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.682603][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.682603][ T10] netlink_unicast+0x449/0x710 [ 2627.682603][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.682603][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.682603][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.682603][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.682603][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.682603][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.682603][ T10] [ 2627.684979][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2627.684979][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2627.684979][ T10] ipv6_find_idev+0x102/0x170 [ 2627.684979][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.684979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.684979][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.684979][ T10] netlink_unicast+0x449/0x710 [ 2627.684979][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.684979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.684979][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.684979][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.684979][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.684979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.684979][ T10] [ 2627.686935][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2627.686935][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2627.686935][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2627.686935][ T10] ipv6_find_idev+0x102/0x170 [ 2627.686935][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2627.686935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2627.686935][ T10] netlink_rcv_skb+0x130/0x360 [ 2627.686935][ T10] netlink_unicast+0x449/0x710 [ 2627.686935][ T10] netlink_sendmsg+0x723/0xbe0 [ 2627.686935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2627.686935][ T10] ___sys_sendmsg+0xee/0x170 [ 2627.686935][ T10] __sys_sendmsg+0xcd/0x170 [ 2627.686935][ T10] do_syscall_64+0xc6/0x1e0 [ 2627.686935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2627.686935][ T10] [ 2637.827757][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2637.828146][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2637.828146][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.828146][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.828146][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.828146][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.828146][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.828146][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.828146][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.828146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.828146][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.828146][ T10] netlink_unicast+0x449/0x710 [ 2637.828146][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.828146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.828146][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.828146][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.828146][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.828146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.828146][ T10] [ 2637.830502][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2637.830502][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.830502][ T10] ipv6_find_idev+0x102/0x170 [ 2637.830502][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.830502][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.830502][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.830502][ T10] netlink_unicast+0x449/0x710 [ 2637.830502][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.830502][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.830502][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.830502][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.830502][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.830502][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.830502][ T10] [ 2637.832249][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2637.832249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.832249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.832249][ T10] ipv6_find_idev+0x102/0x170 [ 2637.832249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.832249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.832249][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.832249][ T10] netlink_unicast+0x449/0x710 [ 2637.832249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.832249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.832249][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.832249][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.832249][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.832249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.832249][ T10] [ 2637.834118][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2637.834416][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2637.834416][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.834416][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.834416][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.834416][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.834416][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.834416][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.834416][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.834416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.834416][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.834416][ T10] netlink_unicast+0x449/0x710 [ 2637.834416][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.834416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.834416][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.834416][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.834416][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.834416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.834416][ T10] [ 2637.836660][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2637.836660][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.836660][ T10] ipv6_find_idev+0x102/0x170 [ 2637.836660][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.836660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.836660][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.836660][ T10] netlink_unicast+0x449/0x710 [ 2637.836660][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.836660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.836660][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.836660][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.836660][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.836660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.836660][ T10] [ 2637.838397][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2637.838397][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.838397][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.838397][ T10] ipv6_find_idev+0x102/0x170 [ 2637.838397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.838397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.838397][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.838397][ T10] netlink_unicast+0x449/0x710 [ 2637.838397][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.838397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.838397][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.838397][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.838397][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.838397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.838397][ T10] [ 2637.840296][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2637.840597][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2637.840597][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.840597][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.840597][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.840597][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.840597][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.840597][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.840597][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.840597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.840597][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.840597][ T10] netlink_unicast+0x449/0x710 [ 2637.840597][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.840597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.840597][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.840597][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.840597][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.840597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.840597][ T10] [ 2637.842895][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2637.842895][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.842895][ T10] ipv6_find_idev+0x102/0x170 [ 2637.842895][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.842895][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.842895][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.842895][ T10] netlink_unicast+0x449/0x710 [ 2637.842895][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.842895][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.842895][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.842895][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.842895][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.842895][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.842895][ T10] [ 2637.844747][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2637.844747][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.844747][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.844747][ T10] ipv6_find_idev+0x102/0x170 [ 2637.844747][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.844747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.844747][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.844747][ T10] netlink_unicast+0x449/0x710 [ 2637.844747][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.844747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.844747][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.844747][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.844747][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.844747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.844747][ T10] [ 2637.846652][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2637.846949][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2637.846949][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.846949][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.846949][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.846949][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.846949][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.846949][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.846949][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.846949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.846949][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.846949][ T10] netlink_unicast+0x449/0x710 [ 2637.846949][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.846949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.846949][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.846949][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.846949][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.846949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.846949][ T10] [ 2637.849486][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2637.849486][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.849486][ T10] ipv6_find_idev+0x102/0x170 [ 2637.849486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.849486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.849486][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.849486][ T10] netlink_unicast+0x449/0x710 [ 2637.849486][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.849486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.849486][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.849486][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.849486][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.849486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.849486][ T10] [ 2637.851509][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2637.851509][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.851509][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.851509][ T10] ipv6_find_idev+0x102/0x170 [ 2637.851509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.851509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.851509][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.851509][ T10] netlink_unicast+0x449/0x710 [ 2637.851509][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.851509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.851509][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.851509][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.851509][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.851509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.851509][ T10] [ 2637.854111][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2637.854410][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2637.854410][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.854410][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.854410][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.854410][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.854410][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.854410][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.854410][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.854410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.854410][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.854410][ T10] netlink_unicast+0x449/0x710 [ 2637.854410][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.854410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.854410][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.854410][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.854410][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.854410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.854410][ T10] [ 2637.856778][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2637.856778][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.856778][ T10] ipv6_find_idev+0x102/0x170 [ 2637.856778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.856778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.856778][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.856778][ T10] netlink_unicast+0x449/0x710 [ 2637.856778][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.856778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.856778][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.856778][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.856778][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.856778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.856778][ T10] [ 2637.858616][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2637.858616][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.858616][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.858616][ T10] ipv6_find_idev+0x102/0x170 [ 2637.858616][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.858616][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.858616][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.858616][ T10] netlink_unicast+0x449/0x710 [ 2637.858616][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.858616][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.858616][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.858616][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.858616][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.858616][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.858616][ T10] [ 2637.860835][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2637.861115][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2637.861115][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.861115][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.861115][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.861115][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.861115][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.861115][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.861115][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.861115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.861115][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.861115][ T10] netlink_unicast+0x449/0x710 [ 2637.861115][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.861115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.861115][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.861115][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.861115][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.861115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.861115][ T10] [ 2637.863380][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2637.863380][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.863380][ T10] ipv6_find_idev+0x102/0x170 [ 2637.863380][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.863380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.863380][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.863380][ T10] netlink_unicast+0x449/0x710 [ 2637.863380][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.863380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.863380][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.863380][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.863380][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.863380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.863380][ T10] [ 2637.865296][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2637.865296][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.865296][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.865296][ T10] ipv6_find_idev+0x102/0x170 [ 2637.865296][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.865296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.865296][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.865296][ T10] netlink_unicast+0x449/0x710 [ 2637.865296][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.865296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.865296][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.865296][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.865296][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.865296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.865296][ T10] [ 2637.867457][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2637.867828][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2637.867828][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.867828][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.867828][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.867828][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.867828][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.867828][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.867828][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.867828][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.867828][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.867828][ T10] netlink_unicast+0x449/0x710 [ 2637.867828][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.867828][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.867828][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.867828][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.867828][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.867828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.867828][ T10] [ 2637.870376][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2637.870376][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.870376][ T10] ipv6_find_idev+0x102/0x170 [ 2637.870376][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.870376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.870376][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.870376][ T10] netlink_unicast+0x449/0x710 [ 2637.870376][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.870376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.870376][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.870376][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.870376][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.870376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.870376][ T10] [ 2637.872391][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2637.872391][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.872391][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.872391][ T10] ipv6_find_idev+0x102/0x170 [ 2637.872391][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.872391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.872391][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.872391][ T10] netlink_unicast+0x449/0x710 [ 2637.872391][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.872391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.872391][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.872391][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.872391][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.872391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.872391][ T10] [ 2637.874616][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2637.874965][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2637.874965][ T10] netdev_get_by_index+0x5e/0x80 [ 2637.874965][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2637.874965][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2637.874965][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2637.874965][ T10] ipv6_add_addr+0x411/0x2000 [ 2637.874965][ T10] inet6_addr_add+0x30e/0xa40 [ 2637.874965][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2637.874965][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.874965][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.874965][ T10] netlink_unicast+0x449/0x710 [ 2637.874965][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.874965][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.874965][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.874965][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.874965][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.874965][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.874965][ T10] [ 2637.877224][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2637.877224][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2637.877224][ T10] ipv6_find_idev+0x102/0x170 [ 2637.877224][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.877224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.877224][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.877224][ T10] netlink_unicast+0x449/0x710 [ 2637.877224][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.877224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.877224][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.877224][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.877224][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.877224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.877224][ T10] [ 2637.879016][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2637.879016][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2637.879016][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2637.879016][ T10] ipv6_find_idev+0x102/0x170 [ 2637.879016][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2637.879016][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2637.879016][ T10] netlink_rcv_skb+0x130/0x360 [ 2637.879016][ T10] netlink_unicast+0x449/0x710 [ 2637.879016][ T10] netlink_sendmsg+0x723/0xbe0 [ 2637.879016][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2637.879016][ T10] ___sys_sendmsg+0xee/0x170 [ 2637.879016][ T10] __sys_sendmsg+0xcd/0x170 [ 2637.879016][ T10] do_syscall_64+0xc6/0x1e0 [ 2637.879016][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2637.879016][ T10] [ 2648.012833][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2648.013304][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2648.013304][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.013304][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.013304][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.013304][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.013304][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.013304][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.013304][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.013304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.013304][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.013304][ T10] netlink_unicast+0x449/0x710 [ 2648.013304][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.013304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.013304][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.013304][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.013304][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.013304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.013304][ T10] [ 2648.015670][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2648.015670][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.015670][ T10] ipv6_find_idev+0x102/0x170 [ 2648.015670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.015670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.015670][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.015670][ T10] netlink_unicast+0x449/0x710 [ 2648.015670][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.015670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.015670][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.015670][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.015670][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.015670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.015670][ T10] [ 2648.017467][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2648.017467][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.017467][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.017467][ T10] ipv6_find_idev+0x102/0x170 [ 2648.017467][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.017467][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.017467][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.017467][ T10] netlink_unicast+0x449/0x710 [ 2648.017467][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.017467][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.017467][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.017467][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.017467][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.017467][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.017467][ T10] [ 2648.019426][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2648.019756][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2648.019756][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.019756][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.019756][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.019756][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.019756][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.019756][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.019756][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.019756][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.019756][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.019756][ T10] netlink_unicast+0x449/0x710 [ 2648.019756][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.019756][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.019756][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.019756][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.019756][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.019756][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.019756][ T10] [ 2648.022051][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2648.022051][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.022051][ T10] ipv6_find_idev+0x102/0x170 [ 2648.022051][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.022051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.022051][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.022051][ T10] netlink_unicast+0x449/0x710 [ 2648.022051][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.022051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.022051][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.022051][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.022051][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.022051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.022051][ T10] [ 2648.023819][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2648.023819][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.023819][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.023819][ T10] ipv6_find_idev+0x102/0x170 [ 2648.023819][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.023819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.023819][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.023819][ T10] netlink_unicast+0x449/0x710 [ 2648.023819][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.023819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.023819][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.023819][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.023819][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.023819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.023819][ T10] [ 2648.025699][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2648.026021][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2648.026021][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.026021][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.026021][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.026021][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.026021][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.026021][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.026021][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.026021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.026021][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.026021][ T10] netlink_unicast+0x449/0x710 [ 2648.026021][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.026021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.026021][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.026021][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.026021][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.026021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.026021][ T10] [ 2648.028381][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2648.028381][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.028381][ T10] ipv6_find_idev+0x102/0x170 [ 2648.028381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.028381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.028381][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.028381][ T10] netlink_unicast+0x449/0x710 [ 2648.028381][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.028381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.028381][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.028381][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.028381][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.028381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.028381][ T10] [ 2648.030121][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2648.030121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.030121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.030121][ T10] ipv6_find_idev+0x102/0x170 [ 2648.030121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.030121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.030121][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.030121][ T10] netlink_unicast+0x449/0x710 [ 2648.030121][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.030121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.030121][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.030121][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.030121][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.030121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.030121][ T10] [ 2648.032420][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2648.032738][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2648.032738][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.032738][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.032738][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.032738][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.032738][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.032738][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.032738][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.032738][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.032738][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.032738][ T10] netlink_unicast+0x449/0x710 [ 2648.032738][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.032738][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.032738][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.032738][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.032738][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.032738][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.032738][ T10] [ 2648.035227][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2648.035227][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.035227][ T10] ipv6_find_idev+0x102/0x170 [ 2648.035227][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.035227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.035227][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.035227][ T10] netlink_unicast+0x449/0x710 [ 2648.035227][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.035227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.035227][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.035227][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.035227][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.035227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.035227][ T10] [ 2648.037174][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2648.037174][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.037174][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.037174][ T10] ipv6_find_idev+0x102/0x170 [ 2648.037174][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.037174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.037174][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.037174][ T10] netlink_unicast+0x449/0x710 [ 2648.037174][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.037174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.037174][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.037174][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.037174][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.037174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.037174][ T10] [ 2648.039289][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2648.039578][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2648.039578][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.039578][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.039578][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.039578][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.039578][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.039578][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.039578][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.039578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.039578][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.039578][ T10] netlink_unicast+0x449/0x710 [ 2648.039578][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.039578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.039578][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.039578][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.039578][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.039578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.039578][ T10] [ 2648.042068][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2648.042068][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.042068][ T10] ipv6_find_idev+0x102/0x170 [ 2648.042068][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.042068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.042068][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.042068][ T10] netlink_unicast+0x449/0x710 [ 2648.042068][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.042068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.042068][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.042068][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.042068][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.042068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.042068][ T10] [ 2648.044047][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2648.044047][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.044047][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.044047][ T10] ipv6_find_idev+0x102/0x170 [ 2648.044047][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.044047][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.044047][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.044047][ T10] netlink_unicast+0x449/0x710 [ 2648.044047][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.044047][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.044047][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.044047][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.044047][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.044047][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.044047][ T10] [ 2648.046111][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2648.046463][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2648.046463][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.046463][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.046463][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.046463][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.046463][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.046463][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.046463][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.046463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.046463][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.046463][ T10] netlink_unicast+0x449/0x710 [ 2648.046463][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.046463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.046463][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.046463][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.046463][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.046463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.046463][ T10] [ 2648.049010][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2648.049010][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.049010][ T10] ipv6_find_idev+0x102/0x170 [ 2648.049010][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.049010][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.049010][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.049010][ T10] netlink_unicast+0x449/0x710 [ 2648.049010][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.049010][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.049010][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.049010][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.049010][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.049010][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.049010][ T10] [ 2648.050952][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2648.050952][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.050952][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.050952][ T10] ipv6_find_idev+0x102/0x170 [ 2648.050952][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.050952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.050952][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.050952][ T10] netlink_unicast+0x449/0x710 [ 2648.050952][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.050952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.050952][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.050952][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.050952][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.050952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.050952][ T10] [ 2648.053094][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2648.053449][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2648.053449][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.053449][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.053449][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.053449][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.053449][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.053449][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.053449][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.053449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.053449][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.053449][ T10] netlink_unicast+0x449/0x710 [ 2648.053449][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.053449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.053449][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.053449][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.053449][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.053449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.053449][ T10] [ 2648.055690][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2648.055690][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.055690][ T10] ipv6_find_idev+0x102/0x170 [ 2648.055690][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.055690][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.055690][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.055690][ T10] netlink_unicast+0x449/0x710 [ 2648.055690][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.055690][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.055690][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.055690][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.055690][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.055690][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.055690][ T10] [ 2648.057542][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2648.057542][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.057542][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.057542][ T10] ipv6_find_idev+0x102/0x170 [ 2648.057542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.057542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.057542][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.057542][ T10] netlink_unicast+0x449/0x710 [ 2648.057542][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.057542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.057542][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.057542][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.057542][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.057542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.057542][ T10] [ 2648.059894][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2648.060231][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2648.060231][ T10] netdev_get_by_index+0x5e/0x80 [ 2648.060231][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2648.060231][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2648.060231][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2648.060231][ T10] ipv6_add_addr+0x411/0x2000 [ 2648.060231][ T10] inet6_addr_add+0x30e/0xa40 [ 2648.060231][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2648.060231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.060231][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.060231][ T10] netlink_unicast+0x449/0x710 [ 2648.060231][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.060231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.060231][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.060231][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.060231][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.060231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.060231][ T10] [ 2648.062878][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2648.062878][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2648.062878][ T10] ipv6_find_idev+0x102/0x170 [ 2648.062878][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.062878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.062878][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.062878][ T10] netlink_unicast+0x449/0x710 [ 2648.062878][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.062878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.062878][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.062878][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.062878][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.062878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.062878][ T10] [ 2648.064837][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2648.064837][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2648.064837][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2648.064837][ T10] ipv6_find_idev+0x102/0x170 [ 2648.064837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2648.064837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2648.064837][ T10] netlink_rcv_skb+0x130/0x360 [ 2648.064837][ T10] netlink_unicast+0x449/0x710 [ 2648.064837][ T10] netlink_sendmsg+0x723/0xbe0 [ 2648.064837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2648.064837][ T10] ___sys_sendmsg+0xee/0x170 [ 2648.064837][ T10] __sys_sendmsg+0xcd/0x170 [ 2648.064837][ T10] do_syscall_64+0xc6/0x1e0 [ 2648.064837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2648.064837][ T10] [ 2658.187687][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2658.188048][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2658.188048][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.188048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.188048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.188048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.188048][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.188048][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.188048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.188048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.188048][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.188048][ T10] netlink_unicast+0x449/0x710 [ 2658.188048][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.188048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.188048][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.188048][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.188048][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.188048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.188048][ T10] [ 2658.190096][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2658.190096][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.190096][ T10] ipv6_find_idev+0x102/0x170 [ 2658.190096][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.190096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.190096][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.190096][ T10] netlink_unicast+0x449/0x710 [ 2658.190096][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.190096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.190096][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.190096][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.190096][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.190096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.190096][ T10] [ 2658.191662][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2658.191662][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.191662][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.191662][ T10] ipv6_find_idev+0x102/0x170 [ 2658.191662][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.191662][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.191662][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.191662][ T10] netlink_unicast+0x449/0x710 [ 2658.191662][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.191662][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.191662][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.191662][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.191662][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.191662][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.191662][ T10] [ 2658.193430][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2658.193720][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2658.193720][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.193720][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.193720][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.193720][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.193720][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.193720][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.193720][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.193720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.193720][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.193720][ T10] netlink_unicast+0x449/0x710 [ 2658.193720][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.193720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.193720][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.193720][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.193720][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.193720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.193720][ T10] [ 2658.195727][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2658.195727][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.195727][ T10] ipv6_find_idev+0x102/0x170 [ 2658.195727][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.195727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.195727][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.195727][ T10] netlink_unicast+0x449/0x710 [ 2658.195727][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.195727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.195727][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.195727][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.195727][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.195727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.195727][ T10] [ 2658.197276][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2658.197276][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.197276][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.197276][ T10] ipv6_find_idev+0x102/0x170 [ 2658.197276][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.197276][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.197276][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.197276][ T10] netlink_unicast+0x449/0x710 [ 2658.197276][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.197276][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.197276][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.197276][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.197276][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.197276][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.197276][ T10] [ 2658.198981][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2658.199261][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2658.199261][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.199261][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.199261][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.199261][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.199261][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.199261][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.199261][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.199261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.199261][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.199261][ T10] netlink_unicast+0x449/0x710 [ 2658.199261][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.199261][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.199261][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.199261][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.199261][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.199261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.199261][ T10] [ 2658.201287][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2658.201287][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.201287][ T10] ipv6_find_idev+0x102/0x170 [ 2658.201287][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.201287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.201287][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.201287][ T10] netlink_unicast+0x449/0x710 [ 2658.201287][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.201287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.201287][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.201287][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.201287][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.201287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.201287][ T10] [ 2658.202816][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2658.202816][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.202816][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.202816][ T10] ipv6_find_idev+0x102/0x170 [ 2658.202816][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.202816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.202816][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.202816][ T10] netlink_unicast+0x449/0x710 [ 2658.202816][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.202816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.202816][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.202816][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.202816][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.202816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.202816][ T10] [ 2658.204508][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2658.204790][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2658.204790][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.204790][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.204790][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.204790][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.204790][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.204790][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.204790][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.204790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.204790][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.204790][ T10] netlink_unicast+0x449/0x710 [ 2658.204790][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.204790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.204790][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.204790][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.204790][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.204790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.204790][ T10] [ 2658.206848][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2658.206848][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.206848][ T10] ipv6_find_idev+0x102/0x170 [ 2658.206848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.206848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.206848][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.206848][ T10] netlink_unicast+0x449/0x710 [ 2658.206848][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.206848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.206848][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.206848][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.206848][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.206848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.206848][ T10] [ 2658.208420][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2658.208420][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.208420][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.208420][ T10] ipv6_find_idev+0x102/0x170 [ 2658.208420][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.208420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.208420][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.208420][ T10] netlink_unicast+0x449/0x710 [ 2658.208420][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.208420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.208420][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.208420][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.208420][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.208420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.208420][ T10] [ 2658.210134][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2658.210458][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2658.210458][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.210458][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.210458][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.210458][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.210458][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.210458][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.210458][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.210458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.210458][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.210458][ T10] netlink_unicast+0x449/0x710 [ 2658.210458][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.210458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.210458][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.210458][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.210458][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.210458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.210458][ T10] [ 2658.212612][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2658.212612][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.212612][ T10] ipv6_find_idev+0x102/0x170 [ 2658.212612][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.212612][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.212612][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.212612][ T10] netlink_unicast+0x449/0x710 [ 2658.212612][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.212612][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.212612][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.212612][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.212612][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.212612][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.212612][ T10] [ 2658.214302][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2658.214302][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.214302][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.214302][ T10] ipv6_find_idev+0x102/0x170 [ 2658.214302][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.214302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.214302][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.214302][ T10] netlink_unicast+0x449/0x710 [ 2658.214302][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.214302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.214302][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.214302][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.214302][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.214302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.214302][ T10] [ 2658.216660][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2658.217000][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2658.217000][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.217000][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.217000][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.217000][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.217000][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.217000][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.217000][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.217000][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.217000][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.217000][ T10] netlink_unicast+0x449/0x710 [ 2658.217000][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.217000][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.217000][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.217000][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.217000][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.217000][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.217000][ T10] [ 2658.219031][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2658.219031][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.219031][ T10] ipv6_find_idev+0x102/0x170 [ 2658.219031][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.219031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.219031][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.219031][ T10] netlink_unicast+0x449/0x710 [ 2658.219031][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.219031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.219031][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.219031][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.219031][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.219031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.219031][ T10] [ 2658.220721][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2658.220721][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.220721][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.220721][ T10] ipv6_find_idev+0x102/0x170 [ 2658.220721][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.220721][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.220721][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.220721][ T10] netlink_unicast+0x449/0x710 [ 2658.220721][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.220721][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.220721][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.220721][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.220721][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.220721][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.220721][ T10] [ 2658.222674][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2658.222957][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2658.222957][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.222957][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.222957][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.222957][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.222957][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.222957][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.222957][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.222957][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.222957][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.222957][ T10] netlink_unicast+0x449/0x710 [ 2658.222957][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.222957][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.222957][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.222957][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.222957][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.222957][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.222957][ T10] [ 2658.225180][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2658.225180][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.225180][ T10] ipv6_find_idev+0x102/0x170 [ 2658.225180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.225180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.225180][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.225180][ T10] netlink_unicast+0x449/0x710 [ 2658.225180][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.225180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.225180][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.225180][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.225180][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.225180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.225180][ T10] [ 2658.226948][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2658.226948][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.226948][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.226948][ T10] ipv6_find_idev+0x102/0x170 [ 2658.226948][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.226948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.226948][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.226948][ T10] netlink_unicast+0x449/0x710 [ 2658.226948][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.226948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.226948][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.226948][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.226948][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.226948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.226948][ T10] [ 2658.228943][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2658.229225][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2658.229225][ T10] netdev_get_by_index+0x5e/0x80 [ 2658.229225][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2658.229225][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2658.229225][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2658.229225][ T10] ipv6_add_addr+0x411/0x2000 [ 2658.229225][ T10] inet6_addr_add+0x30e/0xa40 [ 2658.229225][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2658.229225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.229225][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.229225][ T10] netlink_unicast+0x449/0x710 [ 2658.229225][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.229225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.229225][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.229225][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.229225][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.229225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.229225][ T10] [ 2658.231568][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2658.231568][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2658.231568][ T10] ipv6_find_idev+0x102/0x170 [ 2658.231568][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.231568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.231568][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.231568][ T10] netlink_unicast+0x449/0x710 [ 2658.231568][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.231568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.231568][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.231568][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.231568][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.231568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.231568][ T10] [ 2658.233313][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2658.233313][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2658.233313][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2658.233313][ T10] ipv6_find_idev+0x102/0x170 [ 2658.233313][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2658.233313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2658.233313][ T10] netlink_rcv_skb+0x130/0x360 [ 2658.233313][ T10] netlink_unicast+0x449/0x710 [ 2658.233313][ T10] netlink_sendmsg+0x723/0xbe0 [ 2658.233313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2658.233313][ T10] ___sys_sendmsg+0xee/0x170 [ 2658.233313][ T10] __sys_sendmsg+0xcd/0x170 [ 2658.233313][ T10] do_syscall_64+0xc6/0x1e0 [ 2658.233313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2658.233313][ T10] [ 2668.355665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2668.356041][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2668.356041][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.356041][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.356041][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.356041][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.356041][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.356041][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.356041][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.356041][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.356041][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.356041][ T10] netlink_unicast+0x449/0x710 [ 2668.356041][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.356041][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.356041][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.356041][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.356041][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.356041][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.356041][ T10] [ 2668.358160][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2668.358160][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.358160][ T10] ipv6_find_idev+0x102/0x170 [ 2668.358160][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.358160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.358160][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.358160][ T10] netlink_unicast+0x449/0x710 [ 2668.358160][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.358160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.358160][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.358160][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.358160][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.358160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.358160][ T10] [ 2668.359747][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2668.359747][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.359747][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.359747][ T10] ipv6_find_idev+0x102/0x170 [ 2668.359747][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.359747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.359747][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.359747][ T10] netlink_unicast+0x449/0x710 [ 2668.359747][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.359747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.359747][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.359747][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.359747][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.359747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.359747][ T10] [ 2668.361515][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2668.361979][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2668.361979][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.361979][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.361979][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.361979][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.361979][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.361979][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.361979][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.361979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.361979][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.361979][ T10] netlink_unicast+0x449/0x710 [ 2668.361979][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.361979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.361979][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.361979][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.361979][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.361979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.361979][ T10] [ 2668.364000][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2668.364000][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.364000][ T10] ipv6_find_idev+0x102/0x170 [ 2668.364000][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.364000][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.364000][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.364000][ T10] netlink_unicast+0x449/0x710 [ 2668.364000][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.364000][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.364000][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.364000][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.364000][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.364000][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.364000][ T10] [ 2668.365548][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2668.365548][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.365548][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.365548][ T10] ipv6_find_idev+0x102/0x170 [ 2668.365548][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.365548][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.365548][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.365548][ T10] netlink_unicast+0x449/0x710 [ 2668.365548][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.365548][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.365548][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.365548][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.365548][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.365548][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.365548][ T10] [ 2668.367289][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2668.367606][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2668.367606][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.367606][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.367606][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.367606][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.367606][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.367606][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.367606][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.367606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.367606][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.367606][ T10] netlink_unicast+0x449/0x710 [ 2668.367606][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.367606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.367606][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.367606][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.367606][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.367606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.367606][ T10] [ 2668.369625][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2668.369625][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.369625][ T10] ipv6_find_idev+0x102/0x170 [ 2668.369625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.369625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.369625][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.369625][ T10] netlink_unicast+0x449/0x710 [ 2668.369625][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.369625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.369625][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.369625][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.369625][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.369625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.369625][ T10] [ 2668.371196][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2668.371196][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.371196][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.371196][ T10] ipv6_find_idev+0x102/0x170 [ 2668.371196][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.371196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.371196][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.371196][ T10] netlink_unicast+0x449/0x710 [ 2668.371196][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.371196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.371196][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.371196][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.371196][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.371196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.371196][ T10] [ 2668.372921][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2668.373207][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2668.373207][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.373207][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.373207][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.373207][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.373207][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.373207][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.373207][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.373207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.373207][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.373207][ T10] netlink_unicast+0x449/0x710 [ 2668.373207][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.373207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.373207][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.373207][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.373207][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.373207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.373207][ T10] [ 2668.375265][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2668.375265][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.375265][ T10] ipv6_find_idev+0x102/0x170 [ 2668.375265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.375265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.375265][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.375265][ T10] netlink_unicast+0x449/0x710 [ 2668.375265][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.375265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.375265][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.375265][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.375265][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.375265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.375265][ T10] [ 2668.376847][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2668.376847][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.376847][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.376847][ T10] ipv6_find_idev+0x102/0x170 [ 2668.376847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.376847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.376847][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.376847][ T10] netlink_unicast+0x449/0x710 [ 2668.376847][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.376847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.376847][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.376847][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.376847][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.376847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.376847][ T10] [ 2668.378753][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2668.379066][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2668.379066][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.379066][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.379066][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.379066][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.379066][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.379066][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.379066][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.379066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.379066][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.379066][ T10] netlink_unicast+0x449/0x710 [ 2668.379066][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.379066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.379066][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.379066][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.379066][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.379066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.379066][ T10] [ 2668.381069][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2668.381069][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.381069][ T10] ipv6_find_idev+0x102/0x170 [ 2668.381069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.381069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.381069][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.381069][ T10] netlink_unicast+0x449/0x710 [ 2668.381069][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.381069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.381069][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.381069][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.381069][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.381069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.381069][ T10] [ 2668.382618][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2668.382618][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.382618][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.382618][ T10] ipv6_find_idev+0x102/0x170 [ 2668.382618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.382618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.382618][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.382618][ T10] netlink_unicast+0x449/0x710 [ 2668.382618][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.382618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.382618][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.382618][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.382618][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.382618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.382618][ T10] [ 2668.384594][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2668.385362][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2668.385362][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.385362][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.385362][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.385362][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.385362][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.385362][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.385362][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.385362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.385362][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.385362][ T10] netlink_unicast+0x449/0x710 [ 2668.385362][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.385362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.385362][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.385362][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.385362][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.385362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.385362][ T10] [ 2668.387361][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2668.387361][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.387361][ T10] ipv6_find_idev+0x102/0x170 [ 2668.387361][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.387361][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.387361][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.387361][ T10] netlink_unicast+0x449/0x710 [ 2668.387361][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.387361][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.387361][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.387361][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.387361][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.387361][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.387361][ T10] [ 2668.388939][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2668.388939][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.388939][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.388939][ T10] ipv6_find_idev+0x102/0x170 [ 2668.388939][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.388939][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.388939][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.388939][ T10] netlink_unicast+0x449/0x710 [ 2668.388939][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.388939][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.388939][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.388939][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.388939][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.388939][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.388939][ T10] [ 2668.390701][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2668.390979][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2668.390979][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.390979][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.390979][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.390979][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.390979][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.390979][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.390979][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.390979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.390979][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.390979][ T10] netlink_unicast+0x449/0x710 [ 2668.390979][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.390979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.390979][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.390979][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.390979][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.390979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.390979][ T10] [ 2668.393346][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2668.393346][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.393346][ T10] ipv6_find_idev+0x102/0x170 [ 2668.393346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.393346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.393346][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.393346][ T10] netlink_unicast+0x449/0x710 [ 2668.393346][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.393346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.393346][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.393346][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.393346][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.393346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.393346][ T10] [ 2668.395068][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2668.395068][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.395068][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.395068][ T10] ipv6_find_idev+0x102/0x170 [ 2668.395068][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.395068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.395068][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.395068][ T10] netlink_unicast+0x449/0x710 [ 2668.395068][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.395068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.395068][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.395068][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.395068][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.395068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.395068][ T10] [ 2668.396826][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2668.397097][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2668.397097][ T10] netdev_get_by_index+0x5e/0x80 [ 2668.397097][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2668.397097][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2668.397097][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2668.397097][ T10] ipv6_add_addr+0x411/0x2000 [ 2668.397097][ T10] inet6_addr_add+0x30e/0xa40 [ 2668.397097][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2668.397097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.397097][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.397097][ T10] netlink_unicast+0x449/0x710 [ 2668.397097][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.397097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.397097][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.397097][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.397097][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.397097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.397097][ T10] [ 2668.399378][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2668.399378][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2668.399378][ T10] ipv6_find_idev+0x102/0x170 [ 2668.399378][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.399378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.399378][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.399378][ T10] netlink_unicast+0x449/0x710 [ 2668.399378][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.399378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.399378][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.399378][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.399378][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.399378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.399378][ T10] [ 2668.401135][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2668.401135][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2668.401135][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2668.401135][ T10] ipv6_find_idev+0x102/0x170 [ 2668.401135][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2668.401135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2668.401135][ T10] netlink_rcv_skb+0x130/0x360 [ 2668.401135][ T10] netlink_unicast+0x449/0x710 [ 2668.401135][ T10] netlink_sendmsg+0x723/0xbe0 [ 2668.401135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2668.401135][ T10] ___sys_sendmsg+0xee/0x170 [ 2668.401135][ T10] __sys_sendmsg+0xcd/0x170 [ 2668.401135][ T10] do_syscall_64+0xc6/0x1e0 [ 2668.401135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2668.401135][ T10] [ 2678.572055][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2678.572433][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2678.572433][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.572433][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.572433][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.572433][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.572433][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.572433][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.572433][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.572433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.572433][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.572433][ T10] netlink_unicast+0x449/0x710 [ 2678.572433][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.572433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.572433][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.572433][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.572433][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.572433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.572433][ T10] [ 2678.574632][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2678.574632][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.574632][ T10] ipv6_find_idev+0x102/0x170 [ 2678.574632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.574632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.574632][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.574632][ T10] netlink_unicast+0x449/0x710 [ 2678.574632][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.574632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.574632][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.574632][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.574632][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.574632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.574632][ T10] [ 2678.576331][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2678.576331][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.576331][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.576331][ T10] ipv6_find_idev+0x102/0x170 [ 2678.576331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.576331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.576331][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.576331][ T10] netlink_unicast+0x449/0x710 [ 2678.576331][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.576331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.576331][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.576331][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.576331][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.576331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.576331][ T10] [ 2678.578740][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2678.579029][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2678.579029][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.579029][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.579029][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.579029][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.579029][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.579029][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.579029][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.579029][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.579029][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.579029][ T10] netlink_unicast+0x449/0x710 [ 2678.579029][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.579029][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.579029][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.579029][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.579029][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.579029][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.579029][ T10] [ 2678.581202][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2678.581202][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.581202][ T10] ipv6_find_idev+0x102/0x170 [ 2678.581202][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.581202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.581202][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.581202][ T10] netlink_unicast+0x449/0x710 [ 2678.581202][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.581202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.581202][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.581202][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.581202][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.581202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.581202][ T10] [ 2678.582919][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2678.582919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.582919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.582919][ T10] ipv6_find_idev+0x102/0x170 [ 2678.582919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.582919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.582919][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.582919][ T10] netlink_unicast+0x449/0x710 [ 2678.582919][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.582919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.582919][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.582919][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.582919][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.582919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.582919][ T10] [ 2678.584846][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2678.585134][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2678.585134][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.585134][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.585134][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.585134][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.585134][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.585134][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.585134][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.585134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.585134][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.585134][ T10] netlink_unicast+0x449/0x710 [ 2678.585134][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.585134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.585134][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.585134][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.585134][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.585134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.585134][ T10] [ 2678.587670][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2678.587670][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.587670][ T10] ipv6_find_idev+0x102/0x170 [ 2678.587670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.587670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.587670][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.587670][ T10] netlink_unicast+0x449/0x710 [ 2678.587670][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.587670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.587670][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.587670][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.587670][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.587670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.587670][ T10] [ 2678.589517][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2678.589517][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.589517][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.589517][ T10] ipv6_find_idev+0x102/0x170 [ 2678.589517][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.589517][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.589517][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.589517][ T10] netlink_unicast+0x449/0x710 [ 2678.589517][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.589517][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.589517][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.589517][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.589517][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.589517][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.589517][ T10] [ 2678.592024][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2678.592303][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2678.592303][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.592303][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.592303][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.592303][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.592303][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.592303][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.592303][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.592303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.592303][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.592303][ T10] netlink_unicast+0x449/0x710 [ 2678.592303][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.592303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.592303][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.592303][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.592303][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.592303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.592303][ T10] [ 2678.594731][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2678.594731][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.594731][ T10] ipv6_find_idev+0x102/0x170 [ 2678.594731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.594731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.594731][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.594731][ T10] netlink_unicast+0x449/0x710 [ 2678.594731][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.594731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.594731][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.594731][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.594731][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.594731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.594731][ T10] [ 2678.596671][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2678.596671][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.596671][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.596671][ T10] ipv6_find_idev+0x102/0x170 [ 2678.596671][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.596671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.596671][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.596671][ T10] netlink_unicast+0x449/0x710 [ 2678.596671][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.596671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.596671][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.596671][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.596671][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.596671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.596671][ T10] [ 2678.598800][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2678.599077][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2678.599077][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.599077][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.599077][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.599077][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.599077][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.599077][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.599077][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.599077][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.599077][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.599077][ T10] netlink_unicast+0x449/0x710 [ 2678.599077][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.599077][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.599077][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.599077][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.599077][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.599077][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.599077][ T10] [ 2678.601408][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2678.601408][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.601408][ T10] ipv6_find_idev+0x102/0x170 [ 2678.601408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.601408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.601408][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.601408][ T10] netlink_unicast+0x449/0x710 [ 2678.601408][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.601408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.601408][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.601408][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.601408][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.601408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.601408][ T10] [ 2678.603266][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2678.603266][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.603266][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.603266][ T10] ipv6_find_idev+0x102/0x170 [ 2678.603266][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.603266][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.603266][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.603266][ T10] netlink_unicast+0x449/0x710 [ 2678.603266][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.603266][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.603266][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.603266][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.603266][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.603266][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.603266][ T10] [ 2678.605272][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2678.605554][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2678.605554][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.605554][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.605554][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.605554][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.605554][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.605554][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.605554][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.605554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.605554][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.605554][ T10] netlink_unicast+0x449/0x710 [ 2678.605554][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.605554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.605554][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.605554][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.605554][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.605554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.605554][ T10] [ 2678.608011][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2678.608011][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.608011][ T10] ipv6_find_idev+0x102/0x170 [ 2678.608011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.608011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.608011][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.608011][ T10] netlink_unicast+0x449/0x710 [ 2678.608011][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.608011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.608011][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.608011][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.608011][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.608011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.608011][ T10] [ 2678.609884][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2678.609884][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.609884][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.609884][ T10] ipv6_find_idev+0x102/0x170 [ 2678.609884][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.609884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.609884][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.609884][ T10] netlink_unicast+0x449/0x710 [ 2678.609884][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.609884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.609884][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.609884][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.609884][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.609884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.609884][ T10] [ 2678.611974][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2678.612267][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2678.612267][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.612267][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.612267][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.612267][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.612267][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.612267][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.612267][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.612267][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.612267][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.612267][ T10] netlink_unicast+0x449/0x710 [ 2678.612267][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.612267][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.612267][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.612267][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.612267][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.612267][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.612267][ T10] [ 2678.614630][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2678.614630][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.614630][ T10] ipv6_find_idev+0x102/0x170 [ 2678.614630][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.614630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.614630][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.614630][ T10] netlink_unicast+0x449/0x710 [ 2678.614630][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.614630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.614630][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.614630][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.614630][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.614630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.614630][ T10] [ 2678.616485][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2678.616485][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.616485][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.616485][ T10] ipv6_find_idev+0x102/0x170 [ 2678.616485][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.616485][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.616485][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.616485][ T10] netlink_unicast+0x449/0x710 [ 2678.616485][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.616485][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.616485][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.616485][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.616485][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.616485][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.616485][ T10] [ 2678.618590][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2678.618946][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2678.618946][ T10] netdev_get_by_index+0x5e/0x80 [ 2678.618946][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2678.618946][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2678.618946][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2678.618946][ T10] ipv6_add_addr+0x411/0x2000 [ 2678.618946][ T10] inet6_addr_add+0x30e/0xa40 [ 2678.618946][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2678.618946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.618946][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.618946][ T10] netlink_unicast+0x449/0x710 [ 2678.618946][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.618946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.618946][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.618946][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.618946][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.618946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.618946][ T10] [ 2678.621535][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2678.621535][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2678.621535][ T10] ipv6_find_idev+0x102/0x170 [ 2678.621535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.621535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.621535][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.621535][ T10] netlink_unicast+0x449/0x710 [ 2678.621535][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.621535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.621535][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.621535][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.621535][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.621535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.621535][ T10] [ 2678.623365][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2678.623365][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2678.623365][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2678.623365][ T10] ipv6_find_idev+0x102/0x170 [ 2678.623365][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2678.623365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2678.623365][ T10] netlink_rcv_skb+0x130/0x360 [ 2678.623365][ T10] netlink_unicast+0x449/0x710 [ 2678.623365][ T10] netlink_sendmsg+0x723/0xbe0 [ 2678.623365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2678.623365][ T10] ___sys_sendmsg+0xee/0x170 [ 2678.623365][ T10] __sys_sendmsg+0xcd/0x170 [ 2678.623365][ T10] do_syscall_64+0xc6/0x1e0 [ 2678.623365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2678.623365][ T10] [ 2688.827670][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2688.828037][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2688.828037][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.828037][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.828037][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.828037][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.828037][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.828037][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.828037][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.828037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.828037][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.828037][ T10] netlink_unicast+0x449/0x710 [ 2688.828037][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.828037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.828037][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.828037][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.828037][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.828037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.828037][ T10] [ 2688.830154][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2688.830154][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.830154][ T10] ipv6_find_idev+0x102/0x170 [ 2688.830154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.830154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.830154][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.830154][ T10] netlink_unicast+0x449/0x710 [ 2688.830154][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.830154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.830154][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.830154][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.830154][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.830154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.830154][ T10] [ 2688.831763][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2688.831763][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.831763][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.831763][ T10] ipv6_find_idev+0x102/0x170 [ 2688.831763][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.831763][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.831763][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.831763][ T10] netlink_unicast+0x449/0x710 [ 2688.831763][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.831763][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.831763][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.831763][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.831763][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.831763][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.831763][ T10] [ 2688.833535][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2688.833839][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2688.833839][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.833839][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.833839][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.833839][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.833839][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.833839][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.833839][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.833839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.833839][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.833839][ T10] netlink_unicast+0x449/0x710 [ 2688.833839][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.833839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.833839][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.833839][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.833839][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.833839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.833839][ T10] [ 2688.835872][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2688.835872][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.835872][ T10] ipv6_find_idev+0x102/0x170 [ 2688.835872][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.835872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.835872][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.835872][ T10] netlink_unicast+0x449/0x710 [ 2688.835872][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.835872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.835872][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.835872][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.835872][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.835872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.835872][ T10] [ 2688.837446][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2688.837446][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.837446][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.837446][ T10] ipv6_find_idev+0x102/0x170 [ 2688.837446][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.837446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.837446][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.837446][ T10] netlink_unicast+0x449/0x710 [ 2688.837446][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.837446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.837446][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.837446][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.837446][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.837446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.837446][ T10] [ 2688.839251][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2688.839524][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2688.839524][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.839524][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.839524][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.839524][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.839524][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.839524][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.839524][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.839524][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.839524][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.839524][ T10] netlink_unicast+0x449/0x710 [ 2688.839524][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.839524][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.839524][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.839524][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.839524][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.839524][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.839524][ T10] [ 2688.841639][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2688.841639][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.841639][ T10] ipv6_find_idev+0x102/0x170 [ 2688.841639][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.841639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.841639][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.841639][ T10] netlink_unicast+0x449/0x710 [ 2688.841639][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.841639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.841639][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.841639][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.841639][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.841639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.841639][ T10] [ 2688.843200][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2688.843200][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.843200][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.843200][ T10] ipv6_find_idev+0x102/0x170 [ 2688.843200][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.843200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.843200][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.843200][ T10] netlink_unicast+0x449/0x710 [ 2688.843200][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.843200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.843200][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.843200][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.843200][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.843200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.843200][ T10] [ 2688.845215][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2688.845500][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2688.845500][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.845500][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.845500][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.845500][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.845500][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.845500][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.845500][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.845500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.845500][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.845500][ T10] netlink_unicast+0x449/0x710 [ 2688.845500][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.845500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.845500][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.845500][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.845500][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.845500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.845500][ T10] [ 2688.847553][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2688.847553][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.847553][ T10] ipv6_find_idev+0x102/0x170 [ 2688.847553][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.847553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.847553][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.847553][ T10] netlink_unicast+0x449/0x710 [ 2688.847553][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.847553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.847553][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.847553][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.847553][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.847553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.847553][ T10] [ 2688.849125][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2688.849125][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.849125][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.849125][ T10] ipv6_find_idev+0x102/0x170 [ 2688.849125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.849125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.849125][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.849125][ T10] netlink_unicast+0x449/0x710 [ 2688.849125][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.849125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.849125][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.849125][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.849125][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.849125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.849125][ T10] [ 2688.851120][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2688.851403][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2688.851403][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.851403][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.851403][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.851403][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.851403][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.851403][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.851403][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.851403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.851403][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.851403][ T10] netlink_unicast+0x449/0x710 [ 2688.851403][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.851403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.851403][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.851403][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.851403][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.851403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.851403][ T10] [ 2688.853632][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2688.853632][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.853632][ T10] ipv6_find_idev+0x102/0x170 [ 2688.853632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.853632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.853632][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.853632][ T10] netlink_unicast+0x449/0x710 [ 2688.853632][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.853632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.853632][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.853632][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.853632][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.853632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.853632][ T10] [ 2688.855364][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2688.855364][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.855364][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.855364][ T10] ipv6_find_idev+0x102/0x170 [ 2688.855364][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.855364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.855364][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.855364][ T10] netlink_unicast+0x449/0x710 [ 2688.855364][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.855364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.855364][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.855364][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.855364][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.855364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.855364][ T10] [ 2688.857763][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2688.858531][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2688.858531][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.858531][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.858531][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.858531][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.858531][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.858531][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.858531][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.858531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.858531][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.858531][ T10] netlink_unicast+0x449/0x710 [ 2688.858531][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.858531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.858531][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.858531][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.858531][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.858531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.858531][ T10] [ 2688.860602][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2688.860602][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.860602][ T10] ipv6_find_idev+0x102/0x170 [ 2688.860602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.860602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.860602][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.860602][ T10] netlink_unicast+0x449/0x710 [ 2688.860602][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.860602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.860602][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.860602][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.860602][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.860602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.860602][ T10] [ 2688.862163][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2688.862163][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.862163][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.862163][ T10] ipv6_find_idev+0x102/0x170 [ 2688.862163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.862163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.862163][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.862163][ T10] netlink_unicast+0x449/0x710 [ 2688.862163][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.862163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.862163][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.862163][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.862163][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.862163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.862163][ T10] [ 2688.863914][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2688.864192][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2688.864192][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.864192][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.864192][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.864192][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.864192][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.864192][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.864192][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.864192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.864192][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.864192][ T10] netlink_unicast+0x449/0x710 [ 2688.864192][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.864192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.864192][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.864192][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.864192][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.864192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.864192][ T10] [ 2688.866353][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2688.866353][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.866353][ T10] ipv6_find_idev+0x102/0x170 [ 2688.866353][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.866353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.866353][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.866353][ T10] netlink_unicast+0x449/0x710 [ 2688.866353][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.866353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.866353][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.866353][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.866353][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.866353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.866353][ T10] [ 2688.868113][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2688.868113][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.868113][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.868113][ T10] ipv6_find_idev+0x102/0x170 [ 2688.868113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.868113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.868113][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.868113][ T10] netlink_unicast+0x449/0x710 [ 2688.868113][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.868113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.868113][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.868113][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.868113][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.868113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.868113][ T10] [ 2688.870051][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2688.870332][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2688.870332][ T10] netdev_get_by_index+0x5e/0x80 [ 2688.870332][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2688.870332][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2688.870332][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2688.870332][ T10] ipv6_add_addr+0x411/0x2000 [ 2688.870332][ T10] inet6_addr_add+0x30e/0xa40 [ 2688.870332][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2688.870332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.870332][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.870332][ T10] netlink_unicast+0x449/0x710 [ 2688.870332][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.870332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.870332][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.870332][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.870332][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.870332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.870332][ T10] [ 2688.872587][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2688.872587][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2688.872587][ T10] ipv6_find_idev+0x102/0x170 [ 2688.872587][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.872587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.872587][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.872587][ T10] netlink_unicast+0x449/0x710 [ 2688.872587][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.872587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.872587][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.872587][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.872587][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.872587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.872587][ T10] [ 2688.874279][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2688.874279][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2688.874279][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2688.874279][ T10] ipv6_find_idev+0x102/0x170 [ 2688.874279][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2688.874279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2688.874279][ T10] netlink_rcv_skb+0x130/0x360 [ 2688.874279][ T10] netlink_unicast+0x449/0x710 [ 2688.874279][ T10] netlink_sendmsg+0x723/0xbe0 [ 2688.874279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2688.874279][ T10] ___sys_sendmsg+0xee/0x170 [ 2688.874279][ T10] __sys_sendmsg+0xcd/0x170 [ 2688.874279][ T10] do_syscall_64+0xc6/0x1e0 [ 2688.874279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2688.874279][ T10] [ 2698.980659][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2698.981079][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2698.981079][ T10] netdev_get_by_index+0x5e/0x80 [ 2698.981079][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2698.981079][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2698.981079][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2698.981079][ T10] ipv6_add_addr+0x411/0x2000 [ 2698.981079][ T10] inet6_addr_add+0x30e/0xa40 [ 2698.981079][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2698.981079][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.981079][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.981079][ T10] netlink_unicast+0x449/0x710 [ 2698.981079][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.981079][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.981079][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.981079][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.981079][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.981079][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.981079][ T10] [ 2698.983425][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2698.983425][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2698.983425][ T10] ipv6_find_idev+0x102/0x170 [ 2698.983425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2698.983425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.983425][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.983425][ T10] netlink_unicast+0x449/0x710 [ 2698.983425][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.983425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.983425][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.983425][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.983425][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.983425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.983425][ T10] [ 2698.985238][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2698.985238][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2698.985238][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2698.985238][ T10] ipv6_find_idev+0x102/0x170 [ 2698.985238][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2698.985238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.985238][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.985238][ T10] netlink_unicast+0x449/0x710 [ 2698.985238][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.985238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.985238][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.985238][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.985238][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.985238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.985238][ T10] [ 2698.987133][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2698.987447][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2698.987447][ T10] netdev_get_by_index+0x5e/0x80 [ 2698.987447][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2698.987447][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2698.987447][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2698.987447][ T10] ipv6_add_addr+0x411/0x2000 [ 2698.987447][ T10] inet6_addr_add+0x30e/0xa40 [ 2698.987447][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2698.987447][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.987447][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.987447][ T10] netlink_unicast+0x449/0x710 [ 2698.987447][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.987447][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.987447][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.987447][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.987447][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.987447][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.987447][ T10] [ 2698.989696][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2698.989696][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2698.989696][ T10] ipv6_find_idev+0x102/0x170 [ 2698.989696][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2698.989696][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.989696][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.989696][ T10] netlink_unicast+0x449/0x710 [ 2698.989696][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.989696][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.989696][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.989696][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.989696][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.989696][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.989696][ T10] [ 2698.991463][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2698.991463][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2698.991463][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2698.991463][ T10] ipv6_find_idev+0x102/0x170 [ 2698.991463][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2698.991463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.991463][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.991463][ T10] netlink_unicast+0x449/0x710 [ 2698.991463][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.991463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.991463][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.991463][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.991463][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.991463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.991463][ T10] [ 2698.993328][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2698.993633][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2698.993633][ T10] netdev_get_by_index+0x5e/0x80 [ 2698.993633][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2698.993633][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2698.993633][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2698.993633][ T10] ipv6_add_addr+0x411/0x2000 [ 2698.993633][ T10] inet6_addr_add+0x30e/0xa40 [ 2698.993633][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2698.993633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.993633][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.993633][ T10] netlink_unicast+0x449/0x710 [ 2698.993633][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.993633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.993633][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.993633][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.993633][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.993633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.993633][ T10] [ 2698.995940][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2698.995940][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2698.995940][ T10] ipv6_find_idev+0x102/0x170 [ 2698.995940][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2698.995940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.995940][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.995940][ T10] netlink_unicast+0x449/0x710 [ 2698.995940][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.995940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.995940][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.995940][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.995940][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.995940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.995940][ T10] [ 2698.997953][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2698.997953][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2698.997953][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2698.997953][ T10] ipv6_find_idev+0x102/0x170 [ 2698.997953][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2698.997953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2698.997953][ T10] netlink_rcv_skb+0x130/0x360 [ 2698.997953][ T10] netlink_unicast+0x449/0x710 [ 2698.997953][ T10] netlink_sendmsg+0x723/0xbe0 [ 2698.997953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2698.997953][ T10] ___sys_sendmsg+0xee/0x170 [ 2698.997953][ T10] __sys_sendmsg+0xcd/0x170 [ 2698.997953][ T10] do_syscall_64+0xc6/0x1e0 [ 2698.997953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2698.997953][ T10] [ 2699.000236][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2699.000535][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2699.000535][ T10] netdev_get_by_index+0x5e/0x80 [ 2699.000535][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2699.000535][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2699.000535][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2699.000535][ T10] ipv6_add_addr+0x411/0x2000 [ 2699.000535][ T10] inet6_addr_add+0x30e/0xa40 [ 2699.000535][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2699.000535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.000535][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.000535][ T10] netlink_unicast+0x449/0x710 [ 2699.000535][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.000535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.000535][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.000535][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.000535][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.000535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.000535][ T10] [ 2699.002866][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2699.002866][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2699.002866][ T10] ipv6_find_idev+0x102/0x170 [ 2699.002866][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.002866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.002866][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.002866][ T10] netlink_unicast+0x449/0x710 [ 2699.002866][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.002866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.002866][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.002866][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.002866][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.002866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.002866][ T10] [ 2699.004955][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2699.004955][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2699.004955][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2699.004955][ T10] ipv6_find_idev+0x102/0x170 [ 2699.004955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.004955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.004955][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.004955][ T10] netlink_unicast+0x449/0x710 [ 2699.004955][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.004955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.004955][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.004955][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.004955][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.004955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.004955][ T10] [ 2699.007285][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2699.007682][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2699.007682][ T10] netdev_get_by_index+0x5e/0x80 [ 2699.007682][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2699.007682][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2699.007682][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2699.007682][ T10] ipv6_add_addr+0x411/0x2000 [ 2699.007682][ T10] inet6_addr_add+0x30e/0xa40 [ 2699.007682][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2699.007682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.007682][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.007682][ T10] netlink_unicast+0x449/0x710 [ 2699.007682][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.007682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.007682][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.007682][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.007682][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.007682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.007682][ T10] [ 2699.010383][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2699.010383][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2699.010383][ T10] ipv6_find_idev+0x102/0x170 [ 2699.010383][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.010383][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.010383][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.010383][ T10] netlink_unicast+0x449/0x710 [ 2699.010383][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.010383][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.010383][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.010383][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.010383][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.010383][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.010383][ T10] [ 2699.012410][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2699.012410][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2699.012410][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2699.012410][ T10] ipv6_find_idev+0x102/0x170 [ 2699.012410][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.012410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.012410][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.012410][ T10] netlink_unicast+0x449/0x710 [ 2699.012410][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.012410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.012410][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.012410][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.012410][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.012410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.012410][ T10] [ 2699.014471][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2699.014919][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2699.014919][ T10] netdev_get_by_index+0x5e/0x80 [ 2699.014919][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2699.014919][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2699.014919][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2699.014919][ T10] ipv6_add_addr+0x411/0x2000 [ 2699.014919][ T10] inet6_addr_add+0x30e/0xa40 [ 2699.014919][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2699.014919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.014919][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.014919][ T10] netlink_unicast+0x449/0x710 [ 2699.014919][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.014919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.014919][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.014919][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.014919][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.014919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.014919][ T10] [ 2699.017148][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2699.017148][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2699.017148][ T10] ipv6_find_idev+0x102/0x170 [ 2699.017148][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.017148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.017148][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.017148][ T10] netlink_unicast+0x449/0x710 [ 2699.017148][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.017148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.017148][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.017148][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.017148][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.017148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.017148][ T10] [ 2699.018863][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2699.018863][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2699.018863][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2699.018863][ T10] ipv6_find_idev+0x102/0x170 [ 2699.018863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.018863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.018863][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.018863][ T10] netlink_unicast+0x449/0x710 [ 2699.018863][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.018863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.018863][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.018863][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.018863][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.018863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.018863][ T10] [ 2699.020909][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2699.021191][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2699.021191][ T10] netdev_get_by_index+0x5e/0x80 [ 2699.021191][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2699.021191][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2699.021191][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2699.021191][ T10] ipv6_add_addr+0x411/0x2000 [ 2699.021191][ T10] inet6_addr_add+0x30e/0xa40 [ 2699.021191][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2699.021191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.021191][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.021191][ T10] netlink_unicast+0x449/0x710 [ 2699.021191][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.021191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.021191][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.021191][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.021191][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.021191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.021191][ T10] [ 2699.023802][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2699.023802][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2699.023802][ T10] ipv6_find_idev+0x102/0x170 [ 2699.023802][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.023802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.023802][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.023802][ T10] netlink_unicast+0x449/0x710 [ 2699.023802][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.023802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.023802][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.023802][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.023802][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.023802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.023802][ T10] [ 2699.025986][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2699.025986][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2699.025986][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2699.025986][ T10] ipv6_find_idev+0x102/0x170 [ 2699.025986][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.025986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.025986][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.025986][ T10] netlink_unicast+0x449/0x710 [ 2699.025986][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.025986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.025986][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.025986][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.025986][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.025986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.025986][ T10] [ 2699.028048][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2699.028362][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2699.028362][ T10] netdev_get_by_index+0x5e/0x80 [ 2699.028362][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2699.028362][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2699.028362][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2699.028362][ T10] ipv6_add_addr+0x411/0x2000 [ 2699.028362][ T10] inet6_addr_add+0x30e/0xa40 [ 2699.028362][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2699.028362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.028362][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.028362][ T10] netlink_unicast+0x449/0x710 [ 2699.028362][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.028362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.028362][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.028362][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.028362][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.028362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.028362][ T10] [ 2699.030720][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2699.030720][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2699.030720][ T10] ipv6_find_idev+0x102/0x170 [ 2699.030720][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.030720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.030720][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.030720][ T10] netlink_unicast+0x449/0x710 [ 2699.030720][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.030720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.030720][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.030720][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.030720][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.030720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.030720][ T10] [ 2699.032440][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2699.032440][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2699.032440][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2699.032440][ T10] ipv6_find_idev+0x102/0x170 [ 2699.032440][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2699.032440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2699.032440][ T10] netlink_rcv_skb+0x130/0x360 [ 2699.032440][ T10] netlink_unicast+0x449/0x710 [ 2699.032440][ T10] netlink_sendmsg+0x723/0xbe0 [ 2699.032440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2699.032440][ T10] ___sys_sendmsg+0xee/0x170 [ 2699.032440][ T10] __sys_sendmsg+0xcd/0x170 [ 2699.032440][ T10] do_syscall_64+0xc6/0x1e0 [ 2699.032440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2699.032440][ T10] [ 2709.171748][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2709.172127][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2709.172127][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.172127][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.172127][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.172127][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.172127][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.172127][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.172127][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.172127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.172127][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.172127][ T10] netlink_unicast+0x449/0x710 [ 2709.172127][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.172127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.172127][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.172127][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.172127][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.172127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.172127][ T10] [ 2709.174463][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2709.174463][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.174463][ T10] ipv6_find_idev+0x102/0x170 [ 2709.174463][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.174463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.174463][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.174463][ T10] netlink_unicast+0x449/0x710 [ 2709.174463][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.174463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.174463][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.174463][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.174463][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.174463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.174463][ T10] [ 2709.176248][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2709.176248][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.176248][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.176248][ T10] ipv6_find_idev+0x102/0x170 [ 2709.176248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.176248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.176248][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.176248][ T10] netlink_unicast+0x449/0x710 [ 2709.176248][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.176248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.176248][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.176248][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.176248][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.176248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.176248][ T10] [ 2709.178199][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2709.178502][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2709.178502][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.178502][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.178502][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.178502][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.178502][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.178502][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.178502][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.178502][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.178502][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.178502][ T10] netlink_unicast+0x449/0x710 [ 2709.178502][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.178502][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.178502][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.178502][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.178502][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.178502][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.178502][ T10] [ 2709.180781][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2709.180781][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.180781][ T10] ipv6_find_idev+0x102/0x170 [ 2709.180781][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.180781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.180781][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.180781][ T10] netlink_unicast+0x449/0x710 [ 2709.180781][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.180781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.180781][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.180781][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.180781][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.180781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.180781][ T10] [ 2709.182538][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2709.182538][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.182538][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.182538][ T10] ipv6_find_idev+0x102/0x170 [ 2709.182538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.182538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.182538][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.182538][ T10] netlink_unicast+0x449/0x710 [ 2709.182538][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.182538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.182538][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.182538][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.182538][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.182538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.182538][ T10] [ 2709.184408][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2709.184708][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2709.184708][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.184708][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.184708][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.184708][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.184708][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.184708][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.184708][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.184708][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.184708][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.184708][ T10] netlink_unicast+0x449/0x710 [ 2709.184708][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.184708][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.184708][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.184708][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.184708][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.184708][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.184708][ T10] [ 2709.186901][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2709.186901][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.186901][ T10] ipv6_find_idev+0x102/0x170 [ 2709.186901][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.186901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.186901][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.186901][ T10] netlink_unicast+0x449/0x710 [ 2709.186901][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.186901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.186901][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.186901][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.186901][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.186901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.186901][ T10] [ 2709.188821][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2709.188821][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.188821][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.188821][ T10] ipv6_find_idev+0x102/0x170 [ 2709.188821][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.188821][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.188821][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.188821][ T10] netlink_unicast+0x449/0x710 [ 2709.188821][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.188821][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.188821][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.188821][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.188821][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.188821][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.188821][ T10] [ 2709.190908][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2709.191192][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2709.191192][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.191192][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.191192][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.191192][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.191192][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.191192][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.191192][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.191192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.191192][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.191192][ T10] netlink_unicast+0x449/0x710 [ 2709.191192][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.191192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.191192][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.191192][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.191192][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.191192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.191192][ T10] [ 2709.193573][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2709.193573][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.193573][ T10] ipv6_find_idev+0x102/0x170 [ 2709.193573][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.193573][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.193573][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.193573][ T10] netlink_unicast+0x449/0x710 [ 2709.193573][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.193573][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.193573][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.193573][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.193573][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.193573][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.193573][ T10] [ 2709.195533][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2709.195533][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.195533][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.195533][ T10] ipv6_find_idev+0x102/0x170 [ 2709.195533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.195533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.195533][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.195533][ T10] netlink_unicast+0x449/0x710 [ 2709.195533][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.195533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.195533][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.195533][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.195533][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.195533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.195533][ T10] [ 2709.198110][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2709.198409][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2709.198409][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.198409][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.198409][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.198409][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.198409][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.198409][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.198409][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.198409][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.198409][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.198409][ T10] netlink_unicast+0x449/0x710 [ 2709.198409][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.198409][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.198409][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.198409][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.198409][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.198409][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.198409][ T10] [ 2709.200885][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2709.200885][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.200885][ T10] ipv6_find_idev+0x102/0x170 [ 2709.200885][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.200885][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.200885][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.200885][ T10] netlink_unicast+0x449/0x710 [ 2709.200885][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.200885][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.200885][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.200885][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.200885][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.200885][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.200885][ T10] [ 2709.202819][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2709.202819][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.202819][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.202819][ T10] ipv6_find_idev+0x102/0x170 [ 2709.202819][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.202819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.202819][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.202819][ T10] netlink_unicast+0x449/0x710 [ 2709.202819][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.202819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.202819][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.202819][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.202819][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.202819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.202819][ T10] [ 2709.205017][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2709.205325][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2709.205325][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.205325][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.205325][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.205325][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.205325][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.205325][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.205325][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.205325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.205325][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.205325][ T10] netlink_unicast+0x449/0x710 [ 2709.205325][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.205325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.205325][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.205325][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.205325][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.205325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.205325][ T10] [ 2709.207660][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2709.207660][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.207660][ T10] ipv6_find_idev+0x102/0x170 [ 2709.207660][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.207660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.207660][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.207660][ T10] netlink_unicast+0x449/0x710 [ 2709.207660][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.207660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.207660][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.207660][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.207660][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.207660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.207660][ T10] [ 2709.209387][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2709.209387][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.209387][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.209387][ T10] ipv6_find_idev+0x102/0x170 [ 2709.209387][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.209387][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.209387][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.209387][ T10] netlink_unicast+0x449/0x710 [ 2709.209387][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.209387][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.209387][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.209387][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.209387][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.209387][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.209387][ T10] [ 2709.211312][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2709.211597][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2709.211597][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.211597][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.211597][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.211597][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.211597][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.211597][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.211597][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.211597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.211597][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.211597][ T10] netlink_unicast+0x449/0x710 [ 2709.211597][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.211597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.211597][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.211597][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.211597][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.211597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.211597][ T10] [ 2709.214013][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2709.214013][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.214013][ T10] ipv6_find_idev+0x102/0x170 [ 2709.214013][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.214013][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.214013][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.214013][ T10] netlink_unicast+0x449/0x710 [ 2709.214013][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.214013][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.214013][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.214013][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.214013][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.214013][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.214013][ T10] [ 2709.216052][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2709.216052][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.216052][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.216052][ T10] ipv6_find_idev+0x102/0x170 [ 2709.216052][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.216052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.216052][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.216052][ T10] netlink_unicast+0x449/0x710 [ 2709.216052][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.216052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.216052][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.216052][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.216052][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.216052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.216052][ T10] [ 2709.218243][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2709.218661][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2709.218661][ T10] netdev_get_by_index+0x5e/0x80 [ 2709.218661][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2709.218661][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2709.218661][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2709.218661][ T10] ipv6_add_addr+0x411/0x2000 [ 2709.218661][ T10] inet6_addr_add+0x30e/0xa40 [ 2709.218661][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2709.218661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.218661][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.218661][ T10] netlink_unicast+0x449/0x710 [ 2709.218661][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.218661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.218661][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.218661][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.218661][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.218661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.218661][ T10] [ 2709.221073][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2709.221073][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2709.221073][ T10] ipv6_find_idev+0x102/0x170 [ 2709.221073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.221073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.221073][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.221073][ T10] netlink_unicast+0x449/0x710 [ 2709.221073][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.221073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.221073][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.221073][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.221073][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.221073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.221073][ T10] [ 2709.223111][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2709.223111][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2709.223111][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2709.223111][ T10] ipv6_find_idev+0x102/0x170 [ 2709.223111][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2709.223111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2709.223111][ T10] netlink_rcv_skb+0x130/0x360 [ 2709.223111][ T10] netlink_unicast+0x449/0x710 [ 2709.223111][ T10] netlink_sendmsg+0x723/0xbe0 [ 2709.223111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2709.223111][ T10] ___sys_sendmsg+0xee/0x170 [ 2709.223111][ T10] __sys_sendmsg+0xcd/0x170 [ 2709.223111][ T10] do_syscall_64+0xc6/0x1e0 [ 2709.223111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2709.223111][ T10] [ 2719.348675][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2719.349117][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2719.349117][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.349117][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.349117][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.349117][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.349117][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.349117][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.349117][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.349117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.349117][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.349117][ T10] netlink_unicast+0x449/0x710 [ 2719.349117][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.349117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.349117][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.349117][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.349117][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.349117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.349117][ T10] [ 2719.351316][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2719.351316][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.351316][ T10] ipv6_find_idev+0x102/0x170 [ 2719.351316][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.351316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.351316][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.351316][ T10] netlink_unicast+0x449/0x710 [ 2719.351316][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.351316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.351316][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.351316][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.351316][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.351316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.351316][ T10] [ 2719.352978][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2719.352978][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.352978][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.352978][ T10] ipv6_find_idev+0x102/0x170 [ 2719.352978][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.352978][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.352978][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.352978][ T10] netlink_unicast+0x449/0x710 [ 2719.352978][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.352978][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.352978][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.352978][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.352978][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.352978][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.352978][ T10] [ 2719.354764][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2719.355048][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2719.355048][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.355048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.355048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.355048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.355048][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.355048][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.355048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.355048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.355048][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.355048][ T10] netlink_unicast+0x449/0x710 [ 2719.355048][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.355048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.355048][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.355048][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.355048][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.355048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.355048][ T10] [ 2719.357165][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2719.357165][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.357165][ T10] ipv6_find_idev+0x102/0x170 [ 2719.357165][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.357165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.357165][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.357165][ T10] netlink_unicast+0x449/0x710 [ 2719.357165][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.357165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.357165][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.357165][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.357165][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.357165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.357165][ T10] [ 2719.358822][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2719.358822][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.358822][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.358822][ T10] ipv6_find_idev+0x102/0x170 [ 2719.358822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.358822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.358822][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.358822][ T10] netlink_unicast+0x449/0x710 [ 2719.358822][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.358822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.358822][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.358822][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.358822][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.358822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.358822][ T10] [ 2719.360727][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2719.361006][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2719.361006][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.361006][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.361006][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.361006][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.361006][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.361006][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.361006][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.361006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.361006][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.361006][ T10] netlink_unicast+0x449/0x710 [ 2719.361006][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.361006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.361006][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.361006][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.361006][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.361006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.361006][ T10] [ 2719.363114][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2719.363114][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.363114][ T10] ipv6_find_idev+0x102/0x170 [ 2719.363114][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.363114][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.363114][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.363114][ T10] netlink_unicast+0x449/0x710 [ 2719.363114][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.363114][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.363114][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.363114][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.363114][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.363114][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.363114][ T10] [ 2719.364732][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2719.364732][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.364732][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.364732][ T10] ipv6_find_idev+0x102/0x170 [ 2719.364732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.364732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.364732][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.364732][ T10] netlink_unicast+0x449/0x710 [ 2719.364732][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.364732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.364732][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.364732][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.364732][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.364732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.364732][ T10] [ 2719.366530][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2719.367284][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2719.367284][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.367284][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.367284][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.367284][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.367284][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.367284][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.367284][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.367284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.367284][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.367284][ T10] netlink_unicast+0x449/0x710 [ 2719.367284][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.367284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.367284][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.367284][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.367284][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.367284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.367284][ T10] [ 2719.369392][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2719.369392][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.369392][ T10] ipv6_find_idev+0x102/0x170 [ 2719.369392][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.369392][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.369392][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.369392][ T10] netlink_unicast+0x449/0x710 [ 2719.369392][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.369392][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.369392][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.369392][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.369392][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.369392][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.369392][ T10] [ 2719.371005][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2719.371005][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.371005][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.371005][ T10] ipv6_find_idev+0x102/0x170 [ 2719.371005][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.371005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.371005][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.371005][ T10] netlink_unicast+0x449/0x710 [ 2719.371005][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.371005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.371005][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.371005][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.371005][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.371005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.371005][ T10] [ 2719.372826][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2719.373176][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2719.373176][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.373176][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.373176][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.373176][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.373176][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.373176][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.373176][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.373176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.373176][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.373176][ T10] netlink_unicast+0x449/0x710 [ 2719.373176][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.373176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.373176][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.373176][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.373176][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.373176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.373176][ T10] [ 2719.375341][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2719.375341][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.375341][ T10] ipv6_find_idev+0x102/0x170 [ 2719.375341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.375341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.375341][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.375341][ T10] netlink_unicast+0x449/0x710 [ 2719.375341][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.375341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.375341][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.375341][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.375341][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.375341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.375341][ T10] [ 2719.377160][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2719.377160][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.377160][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.377160][ T10] ipv6_find_idev+0x102/0x170 [ 2719.377160][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.377160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.377160][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.377160][ T10] netlink_unicast+0x449/0x710 [ 2719.377160][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.377160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.377160][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.377160][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.377160][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.377160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.377160][ T10] [ 2719.379188][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2719.379518][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2719.379518][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.379518][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.379518][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.379518][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.379518][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.379518][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.379518][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.379518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.379518][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.379518][ T10] netlink_unicast+0x449/0x710 [ 2719.379518][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.379518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.379518][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.379518][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.379518][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.379518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.379518][ T10] [ 2719.381659][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2719.381659][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.381659][ T10] ipv6_find_idev+0x102/0x170 [ 2719.381659][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.381659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.381659][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.381659][ T10] netlink_unicast+0x449/0x710 [ 2719.381659][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.381659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.381659][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.381659][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.381659][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.381659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.381659][ T10] [ 2719.383366][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2719.383366][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.383366][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.383366][ T10] ipv6_find_idev+0x102/0x170 [ 2719.383366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.383366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.383366][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.383366][ T10] netlink_unicast+0x449/0x710 [ 2719.383366][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.383366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.383366][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.383366][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.383366][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.383366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.383366][ T10] [ 2719.385457][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2719.385800][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2719.385800][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.385800][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.385800][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.385800][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.385800][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.385800][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.385800][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.385800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.385800][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.385800][ T10] netlink_unicast+0x449/0x710 [ 2719.385800][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.385800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.385800][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.385800][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.385800][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.385800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.385800][ T10] [ 2719.388166][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2719.388166][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.388166][ T10] ipv6_find_idev+0x102/0x170 [ 2719.388166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.388166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.388166][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.388166][ T10] netlink_unicast+0x449/0x710 [ 2719.388166][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.388166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.388166][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.388166][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.388166][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.388166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.388166][ T10] [ 2719.389980][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2719.389980][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.389980][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.389980][ T10] ipv6_find_idev+0x102/0x170 [ 2719.389980][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.389980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.389980][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.389980][ T10] netlink_unicast+0x449/0x710 [ 2719.389980][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.389980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.389980][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.389980][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.389980][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.389980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.389980][ T10] [ 2719.391877][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2719.392162][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2719.392162][ T10] netdev_get_by_index+0x5e/0x80 [ 2719.392162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2719.392162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2719.392162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2719.392162][ T10] ipv6_add_addr+0x411/0x2000 [ 2719.392162][ T10] inet6_addr_add+0x30e/0xa40 [ 2719.392162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2719.392162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.392162][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.392162][ T10] netlink_unicast+0x449/0x710 [ 2719.392162][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.392162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.392162][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.392162][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.392162][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.392162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.392162][ T10] [ 2719.394548][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2719.394548][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2719.394548][ T10] ipv6_find_idev+0x102/0x170 [ 2719.394548][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.394548][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.394548][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.394548][ T10] netlink_unicast+0x449/0x710 [ 2719.394548][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.394548][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.394548][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.394548][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.394548][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.394548][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.394548][ T10] [ 2719.396382][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2719.396382][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2719.396382][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2719.396382][ T10] ipv6_find_idev+0x102/0x170 [ 2719.396382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2719.396382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2719.396382][ T10] netlink_rcv_skb+0x130/0x360 [ 2719.396382][ T10] netlink_unicast+0x449/0x710 [ 2719.396382][ T10] netlink_sendmsg+0x723/0xbe0 [ 2719.396382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2719.396382][ T10] ___sys_sendmsg+0xee/0x170 [ 2719.396382][ T10] __sys_sendmsg+0xcd/0x170 [ 2719.396382][ T10] do_syscall_64+0xc6/0x1e0 [ 2719.396382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2719.396382][ T10] [ 2729.571750][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2729.572104][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2729.572104][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.572104][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.572104][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.572104][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.572104][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.572104][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.572104][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.572104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.572104][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.572104][ T10] netlink_unicast+0x449/0x710 [ 2729.572104][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.572104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.572104][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.572104][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.572104][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.572104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.572104][ T10] [ 2729.574273][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2729.574273][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.574273][ T10] ipv6_find_idev+0x102/0x170 [ 2729.574273][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.574273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.574273][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.574273][ T10] netlink_unicast+0x449/0x710 [ 2729.574273][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.574273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.574273][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.574273][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.574273][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.574273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.574273][ T10] [ 2729.575948][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2729.575948][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.575948][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.575948][ T10] ipv6_find_idev+0x102/0x170 [ 2729.575948][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.575948][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.575948][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.575948][ T10] netlink_unicast+0x449/0x710 [ 2729.575948][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.575948][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.575948][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.575948][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.575948][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.575948][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.575948][ T10] [ 2729.577780][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2729.578062][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2729.578062][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.578062][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.578062][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.578062][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.578062][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.578062][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.578062][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.578062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.578062][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.578062][ T10] netlink_unicast+0x449/0x710 [ 2729.578062][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.578062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.578062][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.578062][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.578062][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.578062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.578062][ T10] [ 2729.580174][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2729.580174][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.580174][ T10] ipv6_find_idev+0x102/0x170 [ 2729.580174][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.580174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.580174][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.580174][ T10] netlink_unicast+0x449/0x710 [ 2729.580174][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.580174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.580174][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.580174][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.580174][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.580174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.580174][ T10] [ 2729.581808][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2729.581808][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.581808][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.581808][ T10] ipv6_find_idev+0x102/0x170 [ 2729.581808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.581808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.581808][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.581808][ T10] netlink_unicast+0x449/0x710 [ 2729.581808][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.581808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.581808][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.581808][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.581808][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.581808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.581808][ T10] [ 2729.583572][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2729.583874][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2729.583874][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.583874][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.583874][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.583874][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.583874][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.583874][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.583874][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.583874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.583874][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.583874][ T10] netlink_unicast+0x449/0x710 [ 2729.583874][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.583874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.583874][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.583874][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.583874][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.583874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.583874][ T10] [ 2729.586016][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2729.586016][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.586016][ T10] ipv6_find_idev+0x102/0x170 [ 2729.586016][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.586016][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.586016][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.586016][ T10] netlink_unicast+0x449/0x710 [ 2729.586016][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.586016][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.586016][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.586016][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.586016][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.586016][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.586016][ T10] [ 2729.587604][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2729.587604][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.587604][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.587604][ T10] ipv6_find_idev+0x102/0x170 [ 2729.587604][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.587604][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.587604][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.587604][ T10] netlink_unicast+0x449/0x710 [ 2729.587604][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.587604][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.587604][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.587604][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.587604][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.587604][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.587604][ T10] [ 2729.589330][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2729.589607][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2729.589607][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.589607][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.589607][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.589607][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.589607][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.589607][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.589607][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.589607][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.589607][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.589607][ T10] netlink_unicast+0x449/0x710 [ 2729.589607][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.589607][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.589607][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.589607][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.589607][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.589607][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.589607][ T10] [ 2729.591683][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2729.591683][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.591683][ T10] ipv6_find_idev+0x102/0x170 [ 2729.591683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.591683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.591683][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.591683][ T10] netlink_unicast+0x449/0x710 [ 2729.591683][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.591683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.591683][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.591683][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.591683][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.591683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.591683][ T10] [ 2729.593260][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2729.593260][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.593260][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.593260][ T10] ipv6_find_idev+0x102/0x170 [ 2729.593260][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.593260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.593260][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.593260][ T10] netlink_unicast+0x449/0x710 [ 2729.593260][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.593260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.593260][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.593260][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.593260][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.593260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.593260][ T10] [ 2729.595392][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2729.595666][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2729.595666][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.595666][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.595666][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.595666][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.595666][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.595666][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.595666][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.595666][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.595666][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.595666][ T10] netlink_unicast+0x449/0x710 [ 2729.595666][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.595666][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.595666][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.595666][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.595666][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.595666][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.595666][ T10] [ 2729.597776][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2729.597776][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.597776][ T10] ipv6_find_idev+0x102/0x170 [ 2729.597776][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.597776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.597776][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.597776][ T10] netlink_unicast+0x449/0x710 [ 2729.597776][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.597776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.597776][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.597776][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.597776][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.597776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.597776][ T10] [ 2729.599543][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2729.599543][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.599543][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.599543][ T10] ipv6_find_idev+0x102/0x170 [ 2729.599543][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.599543][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.599543][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.599543][ T10] netlink_unicast+0x449/0x710 [ 2729.599543][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.599543][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.599543][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.599543][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.599543][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.599543][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.599543][ T10] [ 2729.601594][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2729.601926][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2729.601926][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.601926][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.601926][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.601926][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.601926][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.601926][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.601926][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.601926][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.601926][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.601926][ T10] netlink_unicast+0x449/0x710 [ 2729.601926][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.601926][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.601926][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.601926][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.601926][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.601926][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.601926][ T10] [ 2729.604017][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2729.604017][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.604017][ T10] ipv6_find_idev+0x102/0x170 [ 2729.604017][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.604017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.604017][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.604017][ T10] netlink_unicast+0x449/0x710 [ 2729.604017][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.604017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.604017][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.604017][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.604017][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.604017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.604017][ T10] [ 2729.605720][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2729.605720][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.605720][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.605720][ T10] ipv6_find_idev+0x102/0x170 [ 2729.605720][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.605720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.605720][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.605720][ T10] netlink_unicast+0x449/0x710 [ 2729.605720][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.605720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.605720][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.605720][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.605720][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.605720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.605720][ T10] [ 2729.607624][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2729.607956][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2729.607956][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.607956][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.607956][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.607956][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.607956][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.607956][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.607956][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.607956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.607956][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.607956][ T10] netlink_unicast+0x449/0x710 [ 2729.607956][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.607956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.607956][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.607956][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.607956][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.607956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.607956][ T10] [ 2729.610203][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2729.610203][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.610203][ T10] ipv6_find_idev+0x102/0x170 [ 2729.610203][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.610203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.610203][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.610203][ T10] netlink_unicast+0x449/0x710 [ 2729.610203][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.610203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.610203][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.610203][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.610203][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.610203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.610203][ T10] [ 2729.612063][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2729.612063][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.612063][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.612063][ T10] ipv6_find_idev+0x102/0x170 [ 2729.612063][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.612063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.612063][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.612063][ T10] netlink_unicast+0x449/0x710 [ 2729.612063][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.612063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.612063][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.612063][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.612063][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.612063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.612063][ T10] [ 2729.613999][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2729.614287][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2729.614287][ T10] netdev_get_by_index+0x5e/0x80 [ 2729.614287][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2729.614287][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2729.614287][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2729.614287][ T10] ipv6_add_addr+0x411/0x2000 [ 2729.614287][ T10] inet6_addr_add+0x30e/0xa40 [ 2729.614287][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2729.614287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.614287][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.614287][ T10] netlink_unicast+0x449/0x710 [ 2729.614287][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.614287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.614287][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.614287][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.614287][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.614287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.614287][ T10] [ 2729.616577][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2729.616577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2729.616577][ T10] ipv6_find_idev+0x102/0x170 [ 2729.616577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.616577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.616577][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.616577][ T10] netlink_unicast+0x449/0x710 [ 2729.616577][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.616577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.616577][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.616577][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.616577][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.616577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.616577][ T10] [ 2729.618374][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2729.618374][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2729.618374][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2729.618374][ T10] ipv6_find_idev+0x102/0x170 [ 2729.618374][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2729.618374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2729.618374][ T10] netlink_rcv_skb+0x130/0x360 [ 2729.618374][ T10] netlink_unicast+0x449/0x710 [ 2729.618374][ T10] netlink_sendmsg+0x723/0xbe0 [ 2729.618374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2729.618374][ T10] ___sys_sendmsg+0xee/0x170 [ 2729.618374][ T10] __sys_sendmsg+0xcd/0x170 [ 2729.618374][ T10] do_syscall_64+0xc6/0x1e0 [ 2729.618374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2729.618374][ T10] [ 2739.748687][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2739.749061][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2739.749061][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.749061][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.749061][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.749061][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.749061][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.749061][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.749061][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.749061][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.749061][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.749061][ T10] netlink_unicast+0x449/0x710 [ 2739.749061][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.749061][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.749061][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.749061][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.749061][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.749061][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.749061][ T10] [ 2739.751320][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2739.751320][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.751320][ T10] ipv6_find_idev+0x102/0x170 [ 2739.751320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.751320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.751320][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.751320][ T10] netlink_unicast+0x449/0x710 [ 2739.751320][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.751320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.751320][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.751320][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.751320][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.751320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.751320][ T10] [ 2739.753060][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2739.753060][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.753060][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.753060][ T10] ipv6_find_idev+0x102/0x170 [ 2739.753060][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.753060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.753060][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.753060][ T10] netlink_unicast+0x449/0x710 [ 2739.753060][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.753060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.753060][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.753060][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.753060][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.753060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.753060][ T10] [ 2739.755337][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2739.755621][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2739.755621][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.755621][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.755621][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.755621][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.755621][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.755621][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.755621][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.755621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.755621][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.755621][ T10] netlink_unicast+0x449/0x710 [ 2739.755621][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.755621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.755621][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.755621][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.755621][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.755621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.755621][ T10] [ 2739.757834][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2739.757834][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.757834][ T10] ipv6_find_idev+0x102/0x170 [ 2739.757834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.757834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.757834][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.757834][ T10] netlink_unicast+0x449/0x710 [ 2739.757834][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.757834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.757834][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.757834][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.757834][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.757834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.757834][ T10] [ 2739.759548][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2739.759548][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.759548][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.759548][ T10] ipv6_find_idev+0x102/0x170 [ 2739.759548][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.759548][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.759548][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.759548][ T10] netlink_unicast+0x449/0x710 [ 2739.759548][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.759548][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.759548][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.759548][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.759548][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.759548][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.759548][ T10] [ 2739.761531][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2739.762292][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2739.762292][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.762292][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.762292][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.762292][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.762292][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.762292][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.762292][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.762292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.762292][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.762292][ T10] netlink_unicast+0x449/0x710 [ 2739.762292][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.762292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.762292][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.762292][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.762292][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.762292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.762292][ T10] [ 2739.764504][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2739.764504][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.764504][ T10] ipv6_find_idev+0x102/0x170 [ 2739.764504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.764504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.764504][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.764504][ T10] netlink_unicast+0x449/0x710 [ 2739.764504][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.764504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.764504][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.764504][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.764504][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.764504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.764504][ T10] [ 2739.766283][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2739.766283][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.766283][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.766283][ T10] ipv6_find_idev+0x102/0x170 [ 2739.766283][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.766283][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.766283][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.766283][ T10] netlink_unicast+0x449/0x710 [ 2739.766283][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.766283][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.766283][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.766283][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.766283][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.766283][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.766283][ T10] [ 2739.768262][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2739.768558][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2739.768558][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.768558][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.768558][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.768558][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.768558][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.768558][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.768558][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.768558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.768558][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.768558][ T10] netlink_unicast+0x449/0x710 [ 2739.768558][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.768558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.768558][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.768558][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.768558][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.768558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.768558][ T10] [ 2739.770882][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2739.770882][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.770882][ T10] ipv6_find_idev+0x102/0x170 [ 2739.770882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.770882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.770882][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.770882][ T10] netlink_unicast+0x449/0x710 [ 2739.770882][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.770882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.770882][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.770882][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.770882][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.770882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.770882][ T10] [ 2739.772776][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2739.772776][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.772776][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.772776][ T10] ipv6_find_idev+0x102/0x170 [ 2739.772776][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.772776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.772776][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.772776][ T10] netlink_unicast+0x449/0x710 [ 2739.772776][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.772776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.772776][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.772776][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.772776][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.772776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.772776][ T10] [ 2739.775009][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2739.775296][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2739.775296][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.775296][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.775296][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.775296][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.775296][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.775296][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.775296][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.775296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.775296][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.775296][ T10] netlink_unicast+0x449/0x710 [ 2739.775296][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.775296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.775296][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.775296][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.775296][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.775296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.775296][ T10] [ 2739.777837][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2739.777837][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.777837][ T10] ipv6_find_idev+0x102/0x170 [ 2739.777837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.777837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.777837][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.777837][ T10] netlink_unicast+0x449/0x710 [ 2739.777837][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.777837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.777837][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.777837][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.777837][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.777837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.777837][ T10] [ 2739.779720][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2739.779720][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.779720][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.779720][ T10] ipv6_find_idev+0x102/0x170 [ 2739.779720][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.779720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.779720][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.779720][ T10] netlink_unicast+0x449/0x710 [ 2739.779720][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.779720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.779720][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.779720][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.779720][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.779720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.779720][ T10] [ 2739.781873][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2739.782172][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2739.782172][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.782172][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.782172][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.782172][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.782172][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.782172][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.782172][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.782172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.782172][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.782172][ T10] netlink_unicast+0x449/0x710 [ 2739.782172][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.782172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.782172][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.782172][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.782172][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.782172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.782172][ T10] [ 2739.784456][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2739.784456][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.784456][ T10] ipv6_find_idev+0x102/0x170 [ 2739.784456][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.784456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.784456][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.784456][ T10] netlink_unicast+0x449/0x710 [ 2739.784456][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.784456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.784456][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.784456][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.784456][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.784456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.784456][ T10] [ 2739.786249][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2739.786249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.786249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.786249][ T10] ipv6_find_idev+0x102/0x170 [ 2739.786249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.786249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.786249][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.786249][ T10] netlink_unicast+0x449/0x710 [ 2739.786249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.786249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.786249][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.786249][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.786249][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.786249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.786249][ T10] [ 2739.788313][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2739.788689][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2739.788689][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.788689][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.788689][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.788689][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.788689][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.788689][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.788689][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.788689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.788689][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.788689][ T10] netlink_unicast+0x449/0x710 [ 2739.788689][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.788689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.788689][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.788689][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.788689][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.788689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.788689][ T10] [ 2739.791070][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2739.791070][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.791070][ T10] ipv6_find_idev+0x102/0x170 [ 2739.791070][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.791070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.791070][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.791070][ T10] netlink_unicast+0x449/0x710 [ 2739.791070][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.791070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.791070][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.791070][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.791070][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.791070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.791070][ T10] [ 2739.792922][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2739.792922][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.792922][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.792922][ T10] ipv6_find_idev+0x102/0x170 [ 2739.792922][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.792922][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.792922][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.792922][ T10] netlink_unicast+0x449/0x710 [ 2739.792922][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.792922][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.792922][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.792922][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.792922][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.792922][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.792922][ T10] [ 2739.795077][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2739.795359][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2739.795359][ T10] netdev_get_by_index+0x5e/0x80 [ 2739.795359][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2739.795359][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2739.795359][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2739.795359][ T10] ipv6_add_addr+0x411/0x2000 [ 2739.795359][ T10] inet6_addr_add+0x30e/0xa40 [ 2739.795359][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2739.795359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.795359][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.795359][ T10] netlink_unicast+0x449/0x710 [ 2739.795359][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.795359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.795359][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.795359][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.795359][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.795359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.795359][ T10] [ 2739.797876][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2739.797876][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2739.797876][ T10] ipv6_find_idev+0x102/0x170 [ 2739.797876][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.797876][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.797876][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.797876][ T10] netlink_unicast+0x449/0x710 [ 2739.797876][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.797876][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.797876][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.797876][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.797876][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.797876][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.797876][ T10] [ 2739.799775][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2739.799775][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2739.799775][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2739.799775][ T10] ipv6_find_idev+0x102/0x170 [ 2739.799775][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2739.799775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2739.799775][ T10] netlink_rcv_skb+0x130/0x360 [ 2739.799775][ T10] netlink_unicast+0x449/0x710 [ 2739.799775][ T10] netlink_sendmsg+0x723/0xbe0 [ 2739.799775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2739.799775][ T10] ___sys_sendmsg+0xee/0x170 [ 2739.799775][ T10] __sys_sendmsg+0xcd/0x170 [ 2739.799775][ T10] do_syscall_64+0xc6/0x1e0 [ 2739.799775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2739.799775][ T10] [ 2749.956665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2749.957030][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2749.957030][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.957030][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.957030][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.957030][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.957030][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.957030][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.957030][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.957030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.957030][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.957030][ T10] netlink_unicast+0x449/0x710 [ 2749.957030][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.957030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.957030][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.957030][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.957030][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.957030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.957030][ T10] [ 2749.959123][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2749.959123][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2749.959123][ T10] ipv6_find_idev+0x102/0x170 [ 2749.959123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.959123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.959123][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.959123][ T10] netlink_unicast+0x449/0x710 [ 2749.959123][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.959123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.959123][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.959123][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.959123][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.959123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.959123][ T10] [ 2749.960708][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2749.960708][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2749.960708][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2749.960708][ T10] ipv6_find_idev+0x102/0x170 [ 2749.960708][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.960708][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.960708][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.960708][ T10] netlink_unicast+0x449/0x710 [ 2749.960708][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.960708][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.960708][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.960708][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.960708][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.960708][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.960708][ T10] [ 2749.962482][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2749.962801][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2749.962801][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.962801][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.962801][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.962801][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.962801][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.962801][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.962801][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.962801][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.962801][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.962801][ T10] netlink_unicast+0x449/0x710 [ 2749.962801][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.962801][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.962801][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.962801][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.962801][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.962801][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.962801][ T10] [ 2749.964839][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2749.964839][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2749.964839][ T10] ipv6_find_idev+0x102/0x170 [ 2749.964839][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.964839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.964839][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.964839][ T10] netlink_unicast+0x449/0x710 [ 2749.964839][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.964839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.964839][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.964839][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.964839][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.964839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.964839][ T10] [ 2749.966407][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2749.966407][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2749.966407][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2749.966407][ T10] ipv6_find_idev+0x102/0x170 [ 2749.966407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.966407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.966407][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.966407][ T10] netlink_unicast+0x449/0x710 [ 2749.966407][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.966407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.966407][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.966407][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.966407][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.966407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.966407][ T10] [ 2749.968178][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2749.968455][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2749.968455][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.968455][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.968455][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.968455][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.968455][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.968455][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.968455][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.968455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.968455][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.968455][ T10] netlink_unicast+0x449/0x710 [ 2749.968455][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.968455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.968455][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.968455][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.968455][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.968455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.968455][ T10] [ 2749.970494][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2749.970494][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2749.970494][ T10] ipv6_find_idev+0x102/0x170 [ 2749.970494][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.970494][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.970494][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.970494][ T10] netlink_unicast+0x449/0x710 [ 2749.970494][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.970494][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.970494][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.970494][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.970494][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.970494][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.970494][ T10] [ 2749.972049][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2749.972049][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2749.972049][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2749.972049][ T10] ipv6_find_idev+0x102/0x170 [ 2749.972049][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.972049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.972049][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.972049][ T10] netlink_unicast+0x449/0x710 [ 2749.972049][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.972049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.972049][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.972049][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.972049][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.972049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.972049][ T10] [ 2749.973898][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2749.974170][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2749.974170][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.974170][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.974170][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.974170][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.974170][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.974170][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.974170][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.974170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.974170][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.974170][ T10] netlink_unicast+0x449/0x710 [ 2749.974170][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.974170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.974170][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.974170][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.974170][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.974170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.974170][ T10] [ 2749.976258][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2749.976258][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2749.976258][ T10] ipv6_find_idev+0x102/0x170 [ 2749.976258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.976258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.976258][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.976258][ T10] netlink_unicast+0x449/0x710 [ 2749.976258][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.976258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.976258][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.976258][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.976258][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.976258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.976258][ T10] [ 2749.977909][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2749.977909][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2749.977909][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2749.977909][ T10] ipv6_find_idev+0x102/0x170 [ 2749.977909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.977909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.977909][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.977909][ T10] netlink_unicast+0x449/0x710 [ 2749.977909][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.977909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.977909][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.977909][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.977909][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.977909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.977909][ T10] [ 2749.979907][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2749.980263][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2749.980263][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.980263][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.980263][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.980263][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.980263][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.980263][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.980263][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.980263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.980263][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.980263][ T10] netlink_unicast+0x449/0x710 [ 2749.980263][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.980263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.980263][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.980263][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.980263][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.980263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.980263][ T10] [ 2749.982543][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2749.982543][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2749.982543][ T10] ipv6_find_idev+0x102/0x170 [ 2749.982543][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.982543][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.982543][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.982543][ T10] netlink_unicast+0x449/0x710 [ 2749.982543][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.982543][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.982543][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.982543][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.982543][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.982543][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.982543][ T10] [ 2749.984235][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2749.984235][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2749.984235][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2749.984235][ T10] ipv6_find_idev+0x102/0x170 [ 2749.984235][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.984235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.984235][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.984235][ T10] netlink_unicast+0x449/0x710 [ 2749.984235][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.984235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.984235][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.984235][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.984235][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.984235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.984235][ T10] [ 2749.986147][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2749.986423][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2749.986423][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.986423][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.986423][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.986423][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.986423][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.986423][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.986423][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.986423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.986423][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.986423][ T10] netlink_unicast+0x449/0x710 [ 2749.986423][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.986423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.986423][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.986423][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.986423][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.986423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.986423][ T10] [ 2749.988732][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2749.988732][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2749.988732][ T10] ipv6_find_idev+0x102/0x170 [ 2749.988732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.988732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.988732][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.988732][ T10] netlink_unicast+0x449/0x710 [ 2749.988732][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.988732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.988732][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.988732][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.988732][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.988732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.988732][ T10] [ 2749.990486][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2749.990486][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2749.990486][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2749.990486][ T10] ipv6_find_idev+0x102/0x170 [ 2749.990486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.990486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.990486][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.990486][ T10] netlink_unicast+0x449/0x710 [ 2749.990486][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.990486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.990486][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.990486][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.990486][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.990486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.990486][ T10] [ 2749.992831][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2749.993102][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2749.993102][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.993102][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.993102][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.993102][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.993102][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.993102][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.993102][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.993102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.993102][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.993102][ T10] netlink_unicast+0x449/0x710 [ 2749.993102][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.993102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.993102][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.993102][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.993102][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.993102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.993102][ T10] [ 2749.995158][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2749.995158][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2749.995158][ T10] ipv6_find_idev+0x102/0x170 [ 2749.995158][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.995158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.995158][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.995158][ T10] netlink_unicast+0x449/0x710 [ 2749.995158][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.995158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.995158][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.995158][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.995158][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.995158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.995158][ T10] [ 2749.996893][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2749.996893][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2749.996893][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2749.996893][ T10] ipv6_find_idev+0x102/0x170 [ 2749.996893][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2749.996893][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.996893][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.996893][ T10] netlink_unicast+0x449/0x710 [ 2749.996893][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.996893][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.996893][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.996893][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.996893][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.996893][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.996893][ T10] [ 2749.998795][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2749.999076][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2749.999076][ T10] netdev_get_by_index+0x5e/0x80 [ 2749.999076][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2749.999076][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2749.999076][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2749.999076][ T10] ipv6_add_addr+0x411/0x2000 [ 2749.999076][ T10] inet6_addr_add+0x30e/0xa40 [ 2749.999076][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2749.999076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2749.999076][ T10] netlink_rcv_skb+0x130/0x360 [ 2749.999076][ T10] netlink_unicast+0x449/0x710 [ 2749.999076][ T10] netlink_sendmsg+0x723/0xbe0 [ 2749.999076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2749.999076][ T10] ___sys_sendmsg+0xee/0x170 [ 2749.999076][ T10] __sys_sendmsg+0xcd/0x170 [ 2749.999076][ T10] do_syscall_64+0xc6/0x1e0 [ 2749.999076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2749.999076][ T10] [ 2750.001251][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2750.001251][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2750.001251][ T10] ipv6_find_idev+0x102/0x170 [ 2750.001251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2750.001251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2750.001251][ T10] netlink_rcv_skb+0x130/0x360 [ 2750.001251][ T10] netlink_unicast+0x449/0x710 [ 2750.001251][ T10] netlink_sendmsg+0x723/0xbe0 [ 2750.001251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2750.001251][ T10] ___sys_sendmsg+0xee/0x170 [ 2750.001251][ T10] __sys_sendmsg+0xcd/0x170 [ 2750.001251][ T10] do_syscall_64+0xc6/0x1e0 [ 2750.001251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2750.001251][ T10] [ 2750.003078][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2750.003078][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2750.003078][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2750.003078][ T10] ipv6_find_idev+0x102/0x170 [ 2750.003078][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2750.003078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2750.003078][ T10] netlink_rcv_skb+0x130/0x360 [ 2750.003078][ T10] netlink_unicast+0x449/0x710 [ 2750.003078][ T10] netlink_sendmsg+0x723/0xbe0 [ 2750.003078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2750.003078][ T10] ___sys_sendmsg+0xee/0x170 [ 2750.003078][ T10] __sys_sendmsg+0xcd/0x170 [ 2750.003078][ T10] do_syscall_64+0xc6/0x1e0 [ 2750.003078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2750.003078][ T10] [ 2760.149180][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2760.149577][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2760.149577][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.149577][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.149577][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.149577][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.149577][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.149577][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.149577][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.149577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.149577][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.149577][ T10] netlink_unicast+0x449/0x710 [ 2760.149577][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.149577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.149577][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.149577][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.149577][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.149577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.149577][ T10] [ 2760.151972][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2760.151972][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.151972][ T10] ipv6_find_idev+0x102/0x170 [ 2760.151972][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.151972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.151972][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.151972][ T10] netlink_unicast+0x449/0x710 [ 2760.151972][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.151972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.151972][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.151972][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.151972][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.151972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.151972][ T10] [ 2760.153837][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2760.153837][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.153837][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.153837][ T10] ipv6_find_idev+0x102/0x170 [ 2760.153837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.153837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.153837][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.153837][ T10] netlink_unicast+0x449/0x710 [ 2760.153837][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.153837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.153837][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.153837][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.153837][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.153837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.153837][ T10] [ 2760.155942][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2760.156272][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2760.156272][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.156272][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.156272][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.156272][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.156272][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.156272][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.156272][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.156272][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.156272][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.156272][ T10] netlink_unicast+0x449/0x710 [ 2760.156272][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.156272][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.156272][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.156272][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.156272][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.156272][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.156272][ T10] [ 2760.158649][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2760.158649][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.158649][ T10] ipv6_find_idev+0x102/0x170 [ 2760.158649][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.158649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.158649][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.158649][ T10] netlink_unicast+0x449/0x710 [ 2760.158649][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.158649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.158649][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.158649][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.158649][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.158649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.158649][ T10] [ 2760.160471][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2760.160471][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.160471][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.160471][ T10] ipv6_find_idev+0x102/0x170 [ 2760.160471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.160471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.160471][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.160471][ T10] netlink_unicast+0x449/0x710 [ 2760.160471][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.160471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.160471][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.160471][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.160471][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.160471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.160471][ T10] [ 2760.162499][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2760.162855][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2760.162855][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.162855][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.162855][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.162855][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.162855][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.162855][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.162855][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.162855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.162855][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.162855][ T10] netlink_unicast+0x449/0x710 [ 2760.162855][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.162855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.162855][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.162855][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.162855][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.162855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.162855][ T10] [ 2760.165228][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2760.165228][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.165228][ T10] ipv6_find_idev+0x102/0x170 [ 2760.165228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.165228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.165228][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.165228][ T10] netlink_unicast+0x449/0x710 [ 2760.165228][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.165228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.165228][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.165228][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.165228][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.165228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.165228][ T10] [ 2760.167072][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2760.167072][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.167072][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.167072][ T10] ipv6_find_idev+0x102/0x170 [ 2760.167072][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.167072][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.167072][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.167072][ T10] netlink_unicast+0x449/0x710 [ 2760.167072][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.167072][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.167072][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.167072][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.167072][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.167072][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.167072][ T10] [ 2760.169071][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2760.169384][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2760.169384][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.169384][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.169384][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.169384][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.169384][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.169384][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.169384][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.169384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.169384][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.169384][ T10] netlink_unicast+0x449/0x710 [ 2760.169384][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.169384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.169384][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.169384][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.169384][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.169384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.169384][ T10] [ 2760.172187][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2760.172187][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.172187][ T10] ipv6_find_idev+0x102/0x170 [ 2760.172187][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.172187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.172187][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.172187][ T10] netlink_unicast+0x449/0x710 [ 2760.172187][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.172187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.172187][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.172187][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.172187][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.172187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.172187][ T10] [ 2760.174328][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2760.174328][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.174328][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.174328][ T10] ipv6_find_idev+0x102/0x170 [ 2760.174328][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.174328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.174328][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.174328][ T10] netlink_unicast+0x449/0x710 [ 2760.174328][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.174328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.174328][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.174328][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.174328][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.174328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.174328][ T10] [ 2760.176540][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2760.176923][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2760.176923][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.176923][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.176923][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.176923][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.176923][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.176923][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.176923][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.176923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.176923][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.176923][ T10] netlink_unicast+0x449/0x710 [ 2760.176923][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.176923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.176923][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.176923][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.176923][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.176923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.176923][ T10] [ 2760.179443][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2760.179443][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.179443][ T10] ipv6_find_idev+0x102/0x170 [ 2760.179443][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.179443][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.179443][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.179443][ T10] netlink_unicast+0x449/0x710 [ 2760.179443][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.179443][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.179443][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.179443][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.179443][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.179443][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.179443][ T10] [ 2760.181480][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2760.181480][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.181480][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.181480][ T10] ipv6_find_idev+0x102/0x170 [ 2760.181480][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.181480][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.181480][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.181480][ T10] netlink_unicast+0x449/0x710 [ 2760.181480][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.181480][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.181480][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.181480][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.181480][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.181480][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.181480][ T10] [ 2760.183749][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2760.184113][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2760.184113][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.184113][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.184113][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.184113][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.184113][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.184113][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.184113][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.184113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.184113][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.184113][ T10] netlink_unicast+0x449/0x710 [ 2760.184113][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.184113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.184113][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.184113][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.184113][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.184113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.184113][ T10] [ 2760.186582][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2760.186582][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.186582][ T10] ipv6_find_idev+0x102/0x170 [ 2760.186582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.186582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.186582][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.186582][ T10] netlink_unicast+0x449/0x710 [ 2760.186582][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.186582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.186582][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.186582][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.186582][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.186582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.186582][ T10] [ 2760.188654][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2760.188654][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.188654][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.188654][ T10] ipv6_find_idev+0x102/0x170 [ 2760.188654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.188654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.188654][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.188654][ T10] netlink_unicast+0x449/0x710 [ 2760.188654][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.188654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.188654][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.188654][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.188654][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.188654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.188654][ T10] [ 2760.190982][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2760.191345][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2760.191345][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.191345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.191345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.191345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.191345][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.191345][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.191345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.191345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.191345][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.191345][ T10] netlink_unicast+0x449/0x710 [ 2760.191345][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.191345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.191345][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.191345][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.191345][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.191345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.191345][ T10] [ 2760.193785][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2760.193785][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.193785][ T10] ipv6_find_idev+0x102/0x170 [ 2760.193785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.193785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.193785][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.193785][ T10] netlink_unicast+0x449/0x710 [ 2760.193785][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.193785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.193785][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.193785][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.193785][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.193785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.193785][ T10] [ 2760.195762][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2760.195762][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.195762][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.195762][ T10] ipv6_find_idev+0x102/0x170 [ 2760.195762][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.195762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.195762][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.195762][ T10] netlink_unicast+0x449/0x710 [ 2760.195762][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.195762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.195762][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.195762][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.195762][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.195762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.195762][ T10] [ 2760.198219][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2760.198577][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2760.198577][ T10] netdev_get_by_index+0x5e/0x80 [ 2760.198577][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2760.198577][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2760.198577][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2760.198577][ T10] ipv6_add_addr+0x411/0x2000 [ 2760.198577][ T10] inet6_addr_add+0x30e/0xa40 [ 2760.198577][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2760.198577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.198577][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.198577][ T10] netlink_unicast+0x449/0x710 [ 2760.198577][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.198577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.198577][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.198577][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.198577][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.198577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.198577][ T10] [ 2760.201105][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2760.201105][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2760.201105][ T10] ipv6_find_idev+0x102/0x170 [ 2760.201105][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.201105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.201105][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.201105][ T10] netlink_unicast+0x449/0x710 [ 2760.201105][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.201105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.201105][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.201105][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.201105][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.201105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.201105][ T10] [ 2760.203086][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2760.203086][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2760.203086][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2760.203086][ T10] ipv6_find_idev+0x102/0x170 [ 2760.203086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2760.203086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2760.203086][ T10] netlink_rcv_skb+0x130/0x360 [ 2760.203086][ T10] netlink_unicast+0x449/0x710 [ 2760.203086][ T10] netlink_sendmsg+0x723/0xbe0 [ 2760.203086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2760.203086][ T10] ___sys_sendmsg+0xee/0x170 [ 2760.203086][ T10] __sys_sendmsg+0xcd/0x170 [ 2760.203086][ T10] do_syscall_64+0xc6/0x1e0 [ 2760.203086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2760.203086][ T10] [ 2770.403677][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2770.404053][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2770.404053][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.404053][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.404053][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.404053][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.404053][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.404053][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.404053][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.404053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.404053][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.404053][ T10] netlink_unicast+0x449/0x710 [ 2770.404053][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.404053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.404053][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.404053][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.404053][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.404053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.404053][ T10] [ 2770.406166][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2770.406166][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.406166][ T10] ipv6_find_idev+0x102/0x170 [ 2770.406166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.406166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.406166][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.406166][ T10] netlink_unicast+0x449/0x710 [ 2770.406166][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.406166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.406166][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.406166][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.406166][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.406166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.406166][ T10] [ 2770.407823][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2770.407823][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.407823][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.407823][ T10] ipv6_find_idev+0x102/0x170 [ 2770.407823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.407823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.407823][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.407823][ T10] netlink_unicast+0x449/0x710 [ 2770.407823][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.407823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.407823][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.407823][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.407823][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.407823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.407823][ T10] [ 2770.410177][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2770.410839][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2770.410839][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.410839][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.410839][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.410839][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.410839][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.410839][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.410839][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.410839][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.410839][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.410839][ T10] netlink_unicast+0x449/0x710 [ 2770.410839][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.410839][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.410839][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.410839][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.410839][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.410839][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.410839][ T10] [ 2770.412934][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2770.412934][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.412934][ T10] ipv6_find_idev+0x102/0x170 [ 2770.412934][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.412934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.412934][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.412934][ T10] netlink_unicast+0x449/0x710 [ 2770.412934][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.412934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.412934][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.412934][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.412934][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.412934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.412934][ T10] [ 2770.414541][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2770.414541][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.414541][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.414541][ T10] ipv6_find_idev+0x102/0x170 [ 2770.414541][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.414541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.414541][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.414541][ T10] netlink_unicast+0x449/0x710 [ 2770.414541][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.414541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.414541][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.414541][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.414541][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.414541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.414541][ T10] [ 2770.416410][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2770.416781][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2770.416781][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.416781][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.416781][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.416781][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.416781][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.416781][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.416781][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.416781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.416781][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.416781][ T10] netlink_unicast+0x449/0x710 [ 2770.416781][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.416781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.416781][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.416781][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.416781][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.416781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.416781][ T10] [ 2770.418918][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2770.418918][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.418918][ T10] ipv6_find_idev+0x102/0x170 [ 2770.418918][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.418918][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.418918][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.418918][ T10] netlink_unicast+0x449/0x710 [ 2770.418918][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.418918][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.418918][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.418918][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.418918][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.418918][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.418918][ T10] [ 2770.420544][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2770.420544][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.420544][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.420544][ T10] ipv6_find_idev+0x102/0x170 [ 2770.420544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.420544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.420544][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.420544][ T10] netlink_unicast+0x449/0x710 [ 2770.420544][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.420544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.420544][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.420544][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.420544][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.420544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.420544][ T10] [ 2770.422400][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2770.422684][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2770.422684][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.422684][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.422684][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.422684][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.422684][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.422684][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.422684][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.422684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.422684][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.422684][ T10] netlink_unicast+0x449/0x710 [ 2770.422684][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.422684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.422684][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.422684][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.422684][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.422684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.422684][ T10] [ 2770.424929][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2770.424929][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.424929][ T10] ipv6_find_idev+0x102/0x170 [ 2770.424929][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.424929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.424929][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.424929][ T10] netlink_unicast+0x449/0x710 [ 2770.424929][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.424929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.424929][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.424929][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.424929][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.424929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.424929][ T10] [ 2770.426753][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2770.426753][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.426753][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.426753][ T10] ipv6_find_idev+0x102/0x170 [ 2770.426753][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.426753][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.426753][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.426753][ T10] netlink_unicast+0x449/0x710 [ 2770.426753][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.426753][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.426753][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.426753][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.426753][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.426753][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.426753][ T10] [ 2770.428746][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2770.429035][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2770.429035][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.429035][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.429035][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.429035][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.429035][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.429035][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.429035][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.429035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.429035][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.429035][ T10] netlink_unicast+0x449/0x710 [ 2770.429035][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.429035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.429035][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.429035][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.429035][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.429035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.429035][ T10] [ 2770.431359][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2770.431359][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.431359][ T10] ipv6_find_idev+0x102/0x170 [ 2770.431359][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.431359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.431359][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.431359][ T10] netlink_unicast+0x449/0x710 [ 2770.431359][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.431359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.431359][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.431359][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.431359][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.431359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.431359][ T10] [ 2770.433230][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2770.433230][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.433230][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.433230][ T10] ipv6_find_idev+0x102/0x170 [ 2770.433230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.433230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.433230][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.433230][ T10] netlink_unicast+0x449/0x710 [ 2770.433230][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.433230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.433230][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.433230][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.433230][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.433230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.433230][ T10] [ 2770.435198][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2770.435488][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2770.435488][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.435488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.435488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.435488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.435488][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.435488][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.435488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.435488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.435488][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.435488][ T10] netlink_unicast+0x449/0x710 [ 2770.435488][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.435488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.435488][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.435488][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.435488][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.435488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.435488][ T10] [ 2770.437871][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2770.437871][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.437871][ T10] ipv6_find_idev+0x102/0x170 [ 2770.437871][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.437871][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.437871][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.437871][ T10] netlink_unicast+0x449/0x710 [ 2770.437871][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.437871][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.437871][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.437871][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.437871][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.437871][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.437871][ T10] [ 2770.439617][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2770.439617][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.439617][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.439617][ T10] ipv6_find_idev+0x102/0x170 [ 2770.439617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.439617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.439617][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.439617][ T10] netlink_unicast+0x449/0x710 [ 2770.439617][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.439617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.439617][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.439617][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.439617][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.439617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.439617][ T10] [ 2770.441596][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2770.441968][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2770.441968][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.441968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.441968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.441968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.441968][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.441968][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.441968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.441968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.441968][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.441968][ T10] netlink_unicast+0x449/0x710 [ 2770.441968][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.441968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.441968][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.441968][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.441968][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.441968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.441968][ T10] [ 2770.444344][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2770.444344][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.444344][ T10] ipv6_find_idev+0x102/0x170 [ 2770.444344][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.444344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.444344][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.444344][ T10] netlink_unicast+0x449/0x710 [ 2770.444344][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.444344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.444344][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.444344][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.444344][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.444344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.444344][ T10] [ 2770.446174][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2770.446174][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.446174][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.446174][ T10] ipv6_find_idev+0x102/0x170 [ 2770.446174][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.446174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.446174][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.446174][ T10] netlink_unicast+0x449/0x710 [ 2770.446174][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.446174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.446174][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.446174][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.446174][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.446174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.446174][ T10] [ 2770.448228][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2770.448591][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2770.448591][ T10] netdev_get_by_index+0x5e/0x80 [ 2770.448591][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2770.448591][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2770.448591][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2770.448591][ T10] ipv6_add_addr+0x411/0x2000 [ 2770.448591][ T10] inet6_addr_add+0x30e/0xa40 [ 2770.448591][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2770.448591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.448591][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.448591][ T10] netlink_unicast+0x449/0x710 [ 2770.448591][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.448591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.448591][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.448591][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.448591][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.448591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.448591][ T10] [ 2770.450910][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2770.450910][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2770.450910][ T10] ipv6_find_idev+0x102/0x170 [ 2770.450910][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.450910][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.450910][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.450910][ T10] netlink_unicast+0x449/0x710 [ 2770.450910][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.450910][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.450910][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.450910][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.450910][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.450910][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.450910][ T10] [ 2770.452731][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2770.452731][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2770.452731][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2770.452731][ T10] ipv6_find_idev+0x102/0x170 [ 2770.452731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2770.452731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2770.452731][ T10] netlink_rcv_skb+0x130/0x360 [ 2770.452731][ T10] netlink_unicast+0x449/0x710 [ 2770.452731][ T10] netlink_sendmsg+0x723/0xbe0 [ 2770.452731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2770.452731][ T10] ___sys_sendmsg+0xee/0x170 [ 2770.452731][ T10] __sys_sendmsg+0xcd/0x170 [ 2770.452731][ T10] do_syscall_64+0xc6/0x1e0 [ 2770.452731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2770.452731][ T10] [ 2780.563769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2780.564209][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2780.564209][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.564209][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.564209][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.564209][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.564209][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.564209][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.564209][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.564209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.564209][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.564209][ T10] netlink_unicast+0x449/0x710 [ 2780.564209][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.564209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.564209][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.564209][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.564209][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.564209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.564209][ T10] [ 2780.566372][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2780.566372][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.566372][ T10] ipv6_find_idev+0x102/0x170 [ 2780.566372][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.566372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.566372][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.566372][ T10] netlink_unicast+0x449/0x710 [ 2780.566372][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.566372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.566372][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.566372][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.566372][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.566372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.566372][ T10] [ 2780.568070][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2780.568070][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.568070][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.568070][ T10] ipv6_find_idev+0x102/0x170 [ 2780.568070][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.568070][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.568070][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.568070][ T10] netlink_unicast+0x449/0x710 [ 2780.568070][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.568070][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.568070][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.568070][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.568070][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.568070][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.568070][ T10] [ 2780.569923][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2780.570210][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2780.570210][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.570210][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.570210][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.570210][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.570210][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.570210][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.570210][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.570210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.570210][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.570210][ T10] netlink_unicast+0x449/0x710 [ 2780.570210][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.570210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.570210][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.570210][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.570210][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.570210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.570210][ T10] [ 2780.572395][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2780.572395][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.572395][ T10] ipv6_find_idev+0x102/0x170 [ 2780.572395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.572395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.572395][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.572395][ T10] netlink_unicast+0x449/0x710 [ 2780.572395][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.572395][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.572395][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.572395][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.572395][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.572395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.572395][ T10] [ 2780.574083][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2780.574083][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.574083][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.574083][ T10] ipv6_find_idev+0x102/0x170 [ 2780.574083][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.574083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.574083][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.574083][ T10] netlink_unicast+0x449/0x710 [ 2780.574083][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.574083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.574083][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.574083][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.574083][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.574083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.574083][ T10] [ 2780.575918][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2780.576208][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2780.576208][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.576208][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.576208][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.576208][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.576208][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.576208][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.576208][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.576208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.576208][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.576208][ T10] netlink_unicast+0x449/0x710 [ 2780.576208][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.576208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.576208][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.576208][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.576208][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.576208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.576208][ T10] [ 2780.578398][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2780.578398][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.578398][ T10] ipv6_find_idev+0x102/0x170 [ 2780.578398][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.578398][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.578398][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.578398][ T10] netlink_unicast+0x449/0x710 [ 2780.578398][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.578398][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.578398][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.578398][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.578398][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.578398][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.578398][ T10] [ 2780.580064][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2780.580064][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.580064][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.580064][ T10] ipv6_find_idev+0x102/0x170 [ 2780.580064][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.580064][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.580064][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.580064][ T10] netlink_unicast+0x449/0x710 [ 2780.580064][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.580064][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.580064][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.580064][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.580064][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.580064][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.580064][ T10] [ 2780.581971][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2780.582259][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2780.582259][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.582259][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.582259][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.582259][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.582259][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.582259][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.582259][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.582259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.582259][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.582259][ T10] netlink_unicast+0x449/0x710 [ 2780.582259][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.582259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.582259][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.582259][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.582259][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.582259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.582259][ T10] [ 2780.584702][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2780.584702][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.584702][ T10] ipv6_find_idev+0x102/0x170 [ 2780.584702][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.584702][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.584702][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.584702][ T10] netlink_unicast+0x449/0x710 [ 2780.584702][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.584702][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.584702][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.584702][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.584702][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.584702][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.584702][ T10] [ 2780.586390][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2780.586390][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.586390][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.586390][ T10] ipv6_find_idev+0x102/0x170 [ 2780.586390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.586390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.586390][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.586390][ T10] netlink_unicast+0x449/0x710 [ 2780.586390][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.586390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.586390][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.586390][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.586390][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.586390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.586390][ T10] [ 2780.588327][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2780.588608][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2780.588608][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.588608][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.588608][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.588608][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.588608][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.588608][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.588608][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.588608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.588608][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.588608][ T10] netlink_unicast+0x449/0x710 [ 2780.588608][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.588608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.588608][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.588608][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.588608][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.588608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.588608][ T10] [ 2780.590848][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2780.590848][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.590848][ T10] ipv6_find_idev+0x102/0x170 [ 2780.590848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.590848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.590848][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.590848][ T10] netlink_unicast+0x449/0x710 [ 2780.590848][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.590848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.590848][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.590848][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.590848][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.590848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.590848][ T10] [ 2780.592517][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2780.592517][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.592517][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.592517][ T10] ipv6_find_idev+0x102/0x170 [ 2780.592517][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.592517][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.592517][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.592517][ T10] netlink_unicast+0x449/0x710 [ 2780.592517][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.592517][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.592517][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.592517][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.592517][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.592517][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.592517][ T10] [ 2780.594523][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2780.594872][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2780.594872][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.594872][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.594872][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.594872][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.594872][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.594872][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.594872][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.594872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.594872][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.594872][ T10] netlink_unicast+0x449/0x710 [ 2780.594872][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.594872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.594872][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.594872][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.594872][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.594872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.594872][ T10] [ 2780.597222][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2780.597222][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.597222][ T10] ipv6_find_idev+0x102/0x170 [ 2780.597222][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.597222][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.597222][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.597222][ T10] netlink_unicast+0x449/0x710 [ 2780.597222][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.597222][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.597222][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.597222][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.597222][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.597222][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.597222][ T10] [ 2780.599202][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2780.599202][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.599202][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.599202][ T10] ipv6_find_idev+0x102/0x170 [ 2780.599202][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.599202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.599202][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.599202][ T10] netlink_unicast+0x449/0x710 [ 2780.599202][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.599202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.599202][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.599202][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.599202][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.599202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.599202][ T10] [ 2780.601228][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2780.601594][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2780.601594][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.601594][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.601594][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.601594][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.601594][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.601594][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.601594][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.601594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.601594][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.601594][ T10] netlink_unicast+0x449/0x710 [ 2780.601594][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.601594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.601594][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.601594][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.601594][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.601594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.601594][ T10] [ 2780.603749][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2780.603749][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.603749][ T10] ipv6_find_idev+0x102/0x170 [ 2780.603749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.603749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.603749][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.603749][ T10] netlink_unicast+0x449/0x710 [ 2780.603749][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.603749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.603749][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.603749][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.603749][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.603749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.603749][ T10] [ 2780.605437][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2780.605437][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.605437][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.605437][ T10] ipv6_find_idev+0x102/0x170 [ 2780.605437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.605437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.605437][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.605437][ T10] netlink_unicast+0x449/0x710 [ 2780.605437][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.605437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.605437][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.605437][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.605437][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.605437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.605437][ T10] [ 2780.607337][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2780.607625][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2780.607625][ T10] netdev_get_by_index+0x5e/0x80 [ 2780.607625][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2780.607625][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2780.607625][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2780.607625][ T10] ipv6_add_addr+0x411/0x2000 [ 2780.607625][ T10] inet6_addr_add+0x30e/0xa40 [ 2780.607625][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2780.607625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.607625][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.607625][ T10] netlink_unicast+0x449/0x710 [ 2780.607625][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.607625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.607625][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.607625][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.607625][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.607625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.607625][ T10] [ 2780.609801][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2780.609801][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2780.609801][ T10] ipv6_find_idev+0x102/0x170 [ 2780.609801][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.609801][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.609801][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.609801][ T10] netlink_unicast+0x449/0x710 [ 2780.609801][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.609801][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.609801][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.609801][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.609801][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.609801][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.609801][ T10] [ 2780.611597][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2780.611597][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2780.611597][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2780.611597][ T10] ipv6_find_idev+0x102/0x170 [ 2780.611597][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2780.611597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2780.611597][ T10] netlink_rcv_skb+0x130/0x360 [ 2780.611597][ T10] netlink_unicast+0x449/0x710 [ 2780.611597][ T10] netlink_sendmsg+0x723/0xbe0 [ 2780.611597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2780.611597][ T10] ___sys_sendmsg+0xee/0x170 [ 2780.611597][ T10] __sys_sendmsg+0xcd/0x170 [ 2780.611597][ T10] do_syscall_64+0xc6/0x1e0 [ 2780.611597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2780.611597][ T10] [ 2790.715665][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2790.716041][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2790.716041][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.716041][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.716041][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.716041][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.716041][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.716041][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.716041][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.716041][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.716041][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.716041][ T10] netlink_unicast+0x449/0x710 [ 2790.716041][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.716041][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.716041][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.716041][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.716041][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.716041][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.716041][ T10] [ 2790.718229][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2790.718229][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.718229][ T10] ipv6_find_idev+0x102/0x170 [ 2790.718229][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.718229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.718229][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.718229][ T10] netlink_unicast+0x449/0x710 [ 2790.718229][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.718229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.718229][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.718229][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.718229][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.718229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.718229][ T10] [ 2790.719922][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2790.719922][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.719922][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.719922][ T10] ipv6_find_idev+0x102/0x170 [ 2790.719922][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.719922][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.719922][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.719922][ T10] netlink_unicast+0x449/0x710 [ 2790.719922][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.719922][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.719922][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.719922][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.719922][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.719922][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.719922][ T10] [ 2790.721763][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2790.722051][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2790.722051][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.722051][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.722051][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.722051][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.722051][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.722051][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.722051][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.722051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.722051][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.722051][ T10] netlink_unicast+0x449/0x710 [ 2790.722051][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.722051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.722051][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.722051][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.722051][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.722051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.722051][ T10] [ 2790.724216][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2790.724216][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.724216][ T10] ipv6_find_idev+0x102/0x170 [ 2790.724216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.724216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.724216][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.724216][ T10] netlink_unicast+0x449/0x710 [ 2790.724216][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.724216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.724216][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.724216][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.724216][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.724216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.724216][ T10] [ 2790.725860][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2790.725860][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.725860][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.725860][ T10] ipv6_find_idev+0x102/0x170 [ 2790.725860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.725860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.725860][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.725860][ T10] netlink_unicast+0x449/0x710 [ 2790.725860][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.725860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.725860][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.725860][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.725860][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.725860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.725860][ T10] [ 2790.727682][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2790.727976][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2790.727976][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.727976][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.727976][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.727976][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.727976][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.727976][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.727976][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.727976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.727976][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.727976][ T10] netlink_unicast+0x449/0x710 [ 2790.727976][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.727976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.727976][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.727976][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.727976][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.727976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.727976][ T10] [ 2790.730207][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2790.730207][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.730207][ T10] ipv6_find_idev+0x102/0x170 [ 2790.730207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.730207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.730207][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.730207][ T10] netlink_unicast+0x449/0x710 [ 2790.730207][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.730207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.730207][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.730207][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.730207][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.730207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.730207][ T10] [ 2790.731864][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2790.731864][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.731864][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.731864][ T10] ipv6_find_idev+0x102/0x170 [ 2790.731864][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.731864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.731864][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.731864][ T10] netlink_unicast+0x449/0x710 [ 2790.731864][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.731864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.731864][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.731864][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.731864][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.731864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.731864][ T10] [ 2790.733677][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2790.733986][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2790.733986][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.733986][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.733986][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.733986][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.733986][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.733986][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.733986][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.733986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.733986][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.733986][ T10] netlink_unicast+0x449/0x710 [ 2790.733986][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.733986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.733986][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.733986][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.733986][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.733986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.733986][ T10] [ 2790.736223][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2790.736223][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.736223][ T10] ipv6_find_idev+0x102/0x170 [ 2790.736223][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.736223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.736223][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.736223][ T10] netlink_unicast+0x449/0x710 [ 2790.736223][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.736223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.736223][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.736223][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.736223][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.736223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.736223][ T10] [ 2790.737978][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2790.737978][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.737978][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.737978][ T10] ipv6_find_idev+0x102/0x170 [ 2790.737978][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.737978][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.737978][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.737978][ T10] netlink_unicast+0x449/0x710 [ 2790.737978][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.737978][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.737978][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.737978][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.737978][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.737978][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.737978][ T10] [ 2790.740022][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2790.740381][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2790.740381][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.740381][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.740381][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.740381][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.740381][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.740381][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.740381][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.740381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.740381][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.740381][ T10] netlink_unicast+0x449/0x710 [ 2790.740381][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.740381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.740381][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.740381][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.740381][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.740381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.740381][ T10] [ 2790.742736][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2790.742736][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.742736][ T10] ipv6_find_idev+0x102/0x170 [ 2790.742736][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.742736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.742736][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.742736][ T10] netlink_unicast+0x449/0x710 [ 2790.742736][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.742736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.742736][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.742736][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.742736][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.742736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.742736][ T10] [ 2790.744573][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2790.744573][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.744573][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.744573][ T10] ipv6_find_idev+0x102/0x170 [ 2790.744573][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.744573][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.744573][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.744573][ T10] netlink_unicast+0x449/0x710 [ 2790.744573][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.744573][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.744573][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.744573][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.744573][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.744573][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.744573][ T10] [ 2790.746691][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2790.747084][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2790.747084][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.747084][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.747084][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.747084][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.747084][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.747084][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.747084][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.747084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.747084][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.747084][ T10] netlink_unicast+0x449/0x710 [ 2790.747084][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.747084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.747084][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.747084][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.747084][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.747084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.747084][ T10] [ 2790.749215][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2790.749215][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.749215][ T10] ipv6_find_idev+0x102/0x170 [ 2790.749215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.749215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.749215][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.749215][ T10] netlink_unicast+0x449/0x710 [ 2790.749215][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.749215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.749215][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.749215][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.749215][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.749215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.749215][ T10] [ 2790.751056][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2790.751056][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.751056][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.751056][ T10] ipv6_find_idev+0x102/0x170 [ 2790.751056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.751056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.751056][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.751056][ T10] netlink_unicast+0x449/0x710 [ 2790.751056][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.751056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.751056][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.751056][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.751056][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.751056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.751056][ T10] [ 2790.753191][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2790.753482][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2790.753482][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.753482][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.753482][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.753482][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.753482][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.753482][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.753482][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.753482][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.753482][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.753482][ T10] netlink_unicast+0x449/0x710 [ 2790.753482][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.753482][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.753482][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.753482][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.753482][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.753482][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.753482][ T10] [ 2790.755793][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2790.755793][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.755793][ T10] ipv6_find_idev+0x102/0x170 [ 2790.755793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.755793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.755793][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.755793][ T10] netlink_unicast+0x449/0x710 [ 2790.755793][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.755793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.755793][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.755793][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.755793][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.755793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.755793][ T10] [ 2790.757580][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2790.757580][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.757580][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.757580][ T10] ipv6_find_idev+0x102/0x170 [ 2790.757580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.757580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.757580][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.757580][ T10] netlink_unicast+0x449/0x710 [ 2790.757580][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.757580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.757580][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.757580][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.757580][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.757580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.757580][ T10] [ 2790.759680][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2790.759981][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2790.759981][ T10] netdev_get_by_index+0x5e/0x80 [ 2790.759981][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2790.759981][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2790.759981][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2790.759981][ T10] ipv6_add_addr+0x411/0x2000 [ 2790.759981][ T10] inet6_addr_add+0x30e/0xa40 [ 2790.759981][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2790.759981][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.759981][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.759981][ T10] netlink_unicast+0x449/0x710 [ 2790.759981][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.759981][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.759981][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.759981][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.759981][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.759981][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.759981][ T10] [ 2790.762303][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2790.762303][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2790.762303][ T10] ipv6_find_idev+0x102/0x170 [ 2790.762303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.762303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.762303][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.762303][ T10] netlink_unicast+0x449/0x710 [ 2790.762303][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.762303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.762303][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.762303][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.762303][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.762303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.762303][ T10] [ 2790.764135][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2790.764135][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2790.764135][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2790.764135][ T10] ipv6_find_idev+0x102/0x170 [ 2790.764135][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2790.764135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2790.764135][ T10] netlink_rcv_skb+0x130/0x360 [ 2790.764135][ T10] netlink_unicast+0x449/0x710 [ 2790.764135][ T10] netlink_sendmsg+0x723/0xbe0 [ 2790.764135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2790.764135][ T10] ___sys_sendmsg+0xee/0x170 [ 2790.764135][ T10] __sys_sendmsg+0xcd/0x170 [ 2790.764135][ T10] do_syscall_64+0xc6/0x1e0 [ 2790.764135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2790.764135][ T10] [ 2800.899664][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2800.900033][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2800.900033][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.900033][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.900033][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.900033][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.900033][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.900033][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.900033][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.900033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.900033][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.900033][ T10] netlink_unicast+0x449/0x710 [ 2800.900033][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.900033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.900033][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.900033][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.900033][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.900033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.900033][ T10] [ 2800.902177][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2800.902177][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.902177][ T10] ipv6_find_idev+0x102/0x170 [ 2800.902177][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.902177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.902177][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.902177][ T10] netlink_unicast+0x449/0x710 [ 2800.902177][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.902177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.902177][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.902177][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.902177][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.902177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.902177][ T10] [ 2800.903817][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2800.903817][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.903817][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.903817][ T10] ipv6_find_idev+0x102/0x170 [ 2800.903817][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.903817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.903817][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.903817][ T10] netlink_unicast+0x449/0x710 [ 2800.903817][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.903817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.903817][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.903817][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.903817][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.903817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.903817][ T10] [ 2800.905630][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2800.905921][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2800.905921][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.905921][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.905921][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.905921][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.905921][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.905921][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.905921][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.905921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.905921][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.905921][ T10] netlink_unicast+0x449/0x710 [ 2800.905921][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.905921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.905921][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.905921][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.905921][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.905921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.905921][ T10] [ 2800.908032][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2800.908032][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.908032][ T10] ipv6_find_idev+0x102/0x170 [ 2800.908032][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.908032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.908032][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.908032][ T10] netlink_unicast+0x449/0x710 [ 2800.908032][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.908032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.908032][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.908032][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.908032][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.908032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.908032][ T10] [ 2800.909660][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2800.909660][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.909660][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.909660][ T10] ipv6_find_idev+0x102/0x170 [ 2800.909660][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.909660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.909660][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.909660][ T10] netlink_unicast+0x449/0x710 [ 2800.909660][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.909660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.909660][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.909660][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.909660][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.909660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.909660][ T10] [ 2800.911450][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2800.911746][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2800.911746][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.911746][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.911746][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.911746][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.911746][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.911746][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.911746][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.911746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.911746][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.911746][ T10] netlink_unicast+0x449/0x710 [ 2800.911746][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.911746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.911746][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.911746][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.911746][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.911746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.911746][ T10] [ 2800.913894][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2800.913894][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.913894][ T10] ipv6_find_idev+0x102/0x170 [ 2800.913894][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.913894][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.913894][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.913894][ T10] netlink_unicast+0x449/0x710 [ 2800.913894][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.913894][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.913894][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.913894][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.913894][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.913894][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.913894][ T10] [ 2800.915533][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2800.915533][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.915533][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.915533][ T10] ipv6_find_idev+0x102/0x170 [ 2800.915533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.915533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.915533][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.915533][ T10] netlink_unicast+0x449/0x710 [ 2800.915533][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.915533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.915533][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.915533][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.915533][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.915533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.915533][ T10] [ 2800.917330][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2800.917598][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2800.917598][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.917598][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.917598][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.917598][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.917598][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.917598][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.917598][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.917598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.917598][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.917598][ T10] netlink_unicast+0x449/0x710 [ 2800.917598][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.917598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.917598][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.917598][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.917598][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.917598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.917598][ T10] [ 2800.919618][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2800.919618][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.919618][ T10] ipv6_find_idev+0x102/0x170 [ 2800.919618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.919618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.919618][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.919618][ T10] netlink_unicast+0x449/0x710 [ 2800.919618][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.919618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.919618][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.919618][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.919618][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.919618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.919618][ T10] [ 2800.921173][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2800.921173][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.921173][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.921173][ T10] ipv6_find_idev+0x102/0x170 [ 2800.921173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.921173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.921173][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.921173][ T10] netlink_unicast+0x449/0x710 [ 2800.921173][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.921173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.921173][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.921173][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.921173][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.921173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.921173][ T10] [ 2800.922866][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2800.923145][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2800.923145][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.923145][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.923145][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.923145][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.923145][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.923145][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.923145][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.923145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.923145][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.923145][ T10] netlink_unicast+0x449/0x710 [ 2800.923145][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.923145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.923145][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.923145][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.923145][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.923145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.923145][ T10] [ 2800.925158][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2800.925158][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.925158][ T10] ipv6_find_idev+0x102/0x170 [ 2800.925158][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.925158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.925158][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.925158][ T10] netlink_unicast+0x449/0x710 [ 2800.925158][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.925158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.925158][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.925158][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.925158][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.925158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.925158][ T10] [ 2800.926697][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2800.926697][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.926697][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.926697][ T10] ipv6_find_idev+0x102/0x170 [ 2800.926697][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.926697][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.926697][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.926697][ T10] netlink_unicast+0x449/0x710 [ 2800.926697][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.926697][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.926697][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.926697][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.926697][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.926697][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.926697][ T10] [ 2800.929132][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2800.929406][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2800.929406][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.929406][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.929406][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.929406][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.929406][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.929406][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.929406][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.929406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.929406][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.929406][ T10] netlink_unicast+0x449/0x710 [ 2800.929406][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.929406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.929406][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.929406][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.929406][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.929406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.929406][ T10] [ 2800.931417][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2800.931417][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.931417][ T10] ipv6_find_idev+0x102/0x170 [ 2800.931417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.931417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.931417][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.931417][ T10] netlink_unicast+0x449/0x710 [ 2800.931417][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.931417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.931417][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.931417][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.931417][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.931417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.931417][ T10] [ 2800.933027][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2800.933027][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.933027][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.933027][ T10] ipv6_find_idev+0x102/0x170 [ 2800.933027][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.933027][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.933027][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.933027][ T10] netlink_unicast+0x449/0x710 [ 2800.933027][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.933027][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.933027][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.933027][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.933027][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.933027][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.933027][ T10] [ 2800.934902][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2800.935245][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2800.935245][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.935245][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.935245][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.935245][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.935245][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.935245][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.935245][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.935245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.935245][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.935245][ T10] netlink_unicast+0x449/0x710 [ 2800.935245][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.935245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.935245][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.935245][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.935245][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.935245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.935245][ T10] [ 2800.937325][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2800.937325][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.937325][ T10] ipv6_find_idev+0x102/0x170 [ 2800.937325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.937325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.937325][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.937325][ T10] netlink_unicast+0x449/0x710 [ 2800.937325][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.937325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.937325][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.937325][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.937325][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.937325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.937325][ T10] [ 2800.939064][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2800.939064][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.939064][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.939064][ T10] ipv6_find_idev+0x102/0x170 [ 2800.939064][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.939064][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.939064][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.939064][ T10] netlink_unicast+0x449/0x710 [ 2800.939064][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.939064][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.939064][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.939064][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.939064][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.939064][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.939064][ T10] [ 2800.941004][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2800.941280][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2800.941280][ T10] netdev_get_by_index+0x5e/0x80 [ 2800.941280][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2800.941280][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2800.941280][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2800.941280][ T10] ipv6_add_addr+0x411/0x2000 [ 2800.941280][ T10] inet6_addr_add+0x30e/0xa40 [ 2800.941280][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2800.941280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.941280][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.941280][ T10] netlink_unicast+0x449/0x710 [ 2800.941280][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.941280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.941280][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.941280][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.941280][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.941280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.941280][ T10] [ 2800.943519][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2800.943519][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2800.943519][ T10] ipv6_find_idev+0x102/0x170 [ 2800.943519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.943519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.943519][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.943519][ T10] netlink_unicast+0x449/0x710 [ 2800.943519][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.943519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.943519][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.943519][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.943519][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.943519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.943519][ T10] [ 2800.945258][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2800.945258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2800.945258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2800.945258][ T10] ipv6_find_idev+0x102/0x170 [ 2800.945258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2800.945258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2800.945258][ T10] netlink_rcv_skb+0x130/0x360 [ 2800.945258][ T10] netlink_unicast+0x449/0x710 [ 2800.945258][ T10] netlink_sendmsg+0x723/0xbe0 [ 2800.945258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2800.945258][ T10] ___sys_sendmsg+0xee/0x170 [ 2800.945258][ T10] __sys_sendmsg+0xcd/0x170 [ 2800.945258][ T10] do_syscall_64+0xc6/0x1e0 [ 2800.945258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2800.945258][ T10] [ 2811.091778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2811.092270][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2811.092270][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.092270][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.092270][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.092270][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.092270][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.092270][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.092270][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.092270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.092270][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.092270][ T10] netlink_unicast+0x449/0x710 [ 2811.092270][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.092270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.092270][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.092270][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.092270][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.092270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.092270][ T10] [ 2811.094634][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2811.094634][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.094634][ T10] ipv6_find_idev+0x102/0x170 [ 2811.094634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.094634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.094634][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.094634][ T10] netlink_unicast+0x449/0x710 [ 2811.094634][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.094634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.094634][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.094634][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.094634][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.094634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.094634][ T10] [ 2811.096456][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2811.096456][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.096456][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.096456][ T10] ipv6_find_idev+0x102/0x170 [ 2811.096456][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.096456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.096456][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.096456][ T10] netlink_unicast+0x449/0x710 [ 2811.096456][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.096456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.096456][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.096456][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.096456][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.096456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.096456][ T10] [ 2811.098473][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2811.098781][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2811.098781][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.098781][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.098781][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.098781][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.098781][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.098781][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.098781][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.098781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.098781][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.098781][ T10] netlink_unicast+0x449/0x710 [ 2811.098781][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.098781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.098781][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.098781][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.098781][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.098781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.098781][ T10] [ 2811.101074][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2811.101074][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.101074][ T10] ipv6_find_idev+0x102/0x170 [ 2811.101074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.101074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.101074][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.101074][ T10] netlink_unicast+0x449/0x710 [ 2811.101074][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.101074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.101074][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.101074][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.101074][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.101074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.101074][ T10] [ 2811.102878][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2811.102878][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.102878][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.102878][ T10] ipv6_find_idev+0x102/0x170 [ 2811.102878][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.102878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.102878][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.102878][ T10] netlink_unicast+0x449/0x710 [ 2811.102878][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.102878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.102878][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.102878][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.102878][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.102878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.102878][ T10] [ 2811.104785][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2811.105078][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2811.105078][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.105078][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.105078][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.105078][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.105078][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.105078][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.105078][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.105078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.105078][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.105078][ T10] netlink_unicast+0x449/0x710 [ 2811.105078][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.105078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.105078][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.105078][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.105078][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.105078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.105078][ T10] [ 2811.107443][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2811.107443][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.107443][ T10] ipv6_find_idev+0x102/0x170 [ 2811.107443][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.107443][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.107443][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.107443][ T10] netlink_unicast+0x449/0x710 [ 2811.107443][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.107443][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.107443][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.107443][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.107443][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.107443][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.107443][ T10] [ 2811.109265][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2811.109265][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.109265][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.109265][ T10] ipv6_find_idev+0x102/0x170 [ 2811.109265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.109265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.109265][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.109265][ T10] netlink_unicast+0x449/0x710 [ 2811.109265][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.109265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.109265][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.109265][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.109265][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.109265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.109265][ T10] [ 2811.111297][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2811.111599][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2811.111599][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.111599][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.111599][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.111599][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.111599][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.111599][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.111599][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.111599][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.111599][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.111599][ T10] netlink_unicast+0x449/0x710 [ 2811.111599][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.111599][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.111599][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.111599][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.111599][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.111599][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.111599][ T10] [ 2811.113849][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2811.113849][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.113849][ T10] ipv6_find_idev+0x102/0x170 [ 2811.113849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.113849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.113849][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.113849][ T10] netlink_unicast+0x449/0x710 [ 2811.113849][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.113849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.113849][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.113849][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.113849][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.113849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.113849][ T10] [ 2811.115696][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2811.115696][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.115696][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.115696][ T10] ipv6_find_idev+0x102/0x170 [ 2811.115696][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.115696][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.115696][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.115696][ T10] netlink_unicast+0x449/0x710 [ 2811.115696][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.115696][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.115696][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.115696][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.115696][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.115696][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.115696][ T10] [ 2811.117964][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2811.118321][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2811.118321][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.118321][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.118321][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.118321][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.118321][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.118321][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.118321][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.118321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.118321][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.118321][ T10] netlink_unicast+0x449/0x710 [ 2811.118321][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.118321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.118321][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.118321][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.118321][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.118321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.118321][ T10] [ 2811.120807][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2811.120807][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.120807][ T10] ipv6_find_idev+0x102/0x170 [ 2811.120807][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.120807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.120807][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.120807][ T10] netlink_unicast+0x449/0x710 [ 2811.120807][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.120807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.120807][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.120807][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.120807][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.120807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.120807][ T10] [ 2811.122777][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2811.122777][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.122777][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.122777][ T10] ipv6_find_idev+0x102/0x170 [ 2811.122777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.122777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.122777][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.122777][ T10] netlink_unicast+0x449/0x710 [ 2811.122777][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.122777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.122777][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.122777][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.122777][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.122777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.122777][ T10] [ 2811.124947][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2811.125277][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2811.125277][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.125277][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.125277][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.125277][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.125277][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.125277][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.125277][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.125277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.125277][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.125277][ T10] netlink_unicast+0x449/0x710 [ 2811.125277][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.125277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.125277][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.125277][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.125277][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.125277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.125277][ T10] [ 2811.127847][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2811.127847][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.127847][ T10] ipv6_find_idev+0x102/0x170 [ 2811.127847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.127847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.127847][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.127847][ T10] netlink_unicast+0x449/0x710 [ 2811.127847][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.127847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.127847][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.127847][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.127847][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.127847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.127847][ T10] [ 2811.129773][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2811.129773][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.129773][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.129773][ T10] ipv6_find_idev+0x102/0x170 [ 2811.129773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.129773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.129773][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.129773][ T10] netlink_unicast+0x449/0x710 [ 2811.129773][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.129773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.129773][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.129773][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.129773][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.129773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.129773][ T10] [ 2811.132040][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2811.132379][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2811.132379][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.132379][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.132379][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.132379][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.132379][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.132379][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.132379][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.132379][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.132379][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.132379][ T10] netlink_unicast+0x449/0x710 [ 2811.132379][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.132379][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.132379][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.132379][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.132379][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.132379][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.132379][ T10] [ 2811.134935][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2811.134935][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.134935][ T10] ipv6_find_idev+0x102/0x170 [ 2811.134935][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.134935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.134935][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.134935][ T10] netlink_unicast+0x449/0x710 [ 2811.134935][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.134935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.134935][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.134935][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.134935][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.134935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.134935][ T10] [ 2811.136892][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2811.136892][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.136892][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.136892][ T10] ipv6_find_idev+0x102/0x170 [ 2811.136892][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.136892][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.136892][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.136892][ T10] netlink_unicast+0x449/0x710 [ 2811.136892][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.136892][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.136892][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.136892][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.136892][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.136892][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.136892][ T10] [ 2811.139123][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2811.139490][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2811.139490][ T10] netdev_get_by_index+0x5e/0x80 [ 2811.139490][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2811.139490][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2811.139490][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2811.139490][ T10] ipv6_add_addr+0x411/0x2000 [ 2811.139490][ T10] inet6_addr_add+0x30e/0xa40 [ 2811.139490][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2811.139490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.139490][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.139490][ T10] netlink_unicast+0x449/0x710 [ 2811.139490][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.139490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.139490][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.139490][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.139490][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.139490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.139490][ T10] [ 2811.142058][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2811.142058][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2811.142058][ T10] ipv6_find_idev+0x102/0x170 [ 2811.142058][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.142058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.142058][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.142058][ T10] netlink_unicast+0x449/0x710 [ 2811.142058][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.142058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.142058][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.142058][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.142058][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.142058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.142058][ T10] [ 2811.144003][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2811.144003][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2811.144003][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2811.144003][ T10] ipv6_find_idev+0x102/0x170 [ 2811.144003][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2811.144003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2811.144003][ T10] netlink_rcv_skb+0x130/0x360 [ 2811.144003][ T10] netlink_unicast+0x449/0x710 [ 2811.144003][ T10] netlink_sendmsg+0x723/0xbe0 [ 2811.144003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2811.144003][ T10] ___sys_sendmsg+0xee/0x170 [ 2811.144003][ T10] __sys_sendmsg+0xcd/0x170 [ 2811.144003][ T10] do_syscall_64+0xc6/0x1e0 [ 2811.144003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2811.144003][ T10] [ 2821.228785][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2821.229180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2821.229180][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.229180][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.229180][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.229180][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.229180][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.229180][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.229180][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.229180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.229180][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.229180][ T10] netlink_unicast+0x449/0x710 [ 2821.229180][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.229180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.229180][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.229180][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.229180][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.229180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.229180][ T10] [ 2821.231570][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2821.231570][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.231570][ T10] ipv6_find_idev+0x102/0x170 [ 2821.231570][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.231570][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.231570][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.231570][ T10] netlink_unicast+0x449/0x710 [ 2821.231570][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.231570][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.231570][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.231570][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.231570][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.231570][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.231570][ T10] [ 2821.233448][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2821.233448][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.233448][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.233448][ T10] ipv6_find_idev+0x102/0x170 [ 2821.233448][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.233448][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.233448][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.233448][ T10] netlink_unicast+0x449/0x710 [ 2821.233448][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.233448][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.233448][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.233448][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.233448][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.233448][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.233448][ T10] [ 2821.235493][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2821.235821][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2821.235821][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.235821][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.235821][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.235821][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.235821][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.235821][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.235821][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.235821][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.235821][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.235821][ T10] netlink_unicast+0x449/0x710 [ 2821.235821][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.235821][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.235821][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.235821][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.235821][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.235821][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.235821][ T10] [ 2821.238245][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2821.238245][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.238245][ T10] ipv6_find_idev+0x102/0x170 [ 2821.238245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.238245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.238245][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.238245][ T10] netlink_unicast+0x449/0x710 [ 2821.238245][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.238245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.238245][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.238245][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.238245][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.238245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.238245][ T10] [ 2821.240085][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2821.240085][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.240085][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.240085][ T10] ipv6_find_idev+0x102/0x170 [ 2821.240085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.240085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.240085][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.240085][ T10] netlink_unicast+0x449/0x710 [ 2821.240085][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.240085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.240085][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.240085][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.240085][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.240085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.240085][ T10] [ 2821.242083][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2821.242393][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2821.242393][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.242393][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.242393][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.242393][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.242393][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.242393][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.242393][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.242393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.242393][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.242393][ T10] netlink_unicast+0x449/0x710 [ 2821.242393][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.242393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.242393][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.242393][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.242393][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.242393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.242393][ T10] [ 2821.244740][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2821.244740][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.244740][ T10] ipv6_find_idev+0x102/0x170 [ 2821.244740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.244740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.244740][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.244740][ T10] netlink_unicast+0x449/0x710 [ 2821.244740][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.244740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.244740][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.244740][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.244740][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.244740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.244740][ T10] [ 2821.246509][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2821.246509][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.246509][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.246509][ T10] ipv6_find_idev+0x102/0x170 [ 2821.246509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.246509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.246509][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.246509][ T10] netlink_unicast+0x449/0x710 [ 2821.246509][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.246509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.246509][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.246509][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.246509][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.246509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.246509][ T10] [ 2821.248465][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2821.248775][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2821.248775][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.248775][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.248775][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.248775][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.248775][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.248775][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.248775][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.248775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.248775][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.248775][ T10] netlink_unicast+0x449/0x710 [ 2821.248775][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.248775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.248775][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.248775][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.248775][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.248775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.248775][ T10] [ 2821.251205][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2821.251205][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.251205][ T10] ipv6_find_idev+0x102/0x170 [ 2821.251205][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.251205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.251205][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.251205][ T10] netlink_unicast+0x449/0x710 [ 2821.251205][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.251205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.251205][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.251205][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.251205][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.251205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.251205][ T10] [ 2821.253040][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2821.253040][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.253040][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.253040][ T10] ipv6_find_idev+0x102/0x170 [ 2821.253040][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.253040][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.253040][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.253040][ T10] netlink_unicast+0x449/0x710 [ 2821.253040][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.253040][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.253040][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.253040][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.253040][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.253040][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.253040][ T10] [ 2821.255050][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2821.255357][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2821.255357][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.255357][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.255357][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.255357][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.255357][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.255357][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.255357][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.255357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.255357][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.255357][ T10] netlink_unicast+0x449/0x710 [ 2821.255357][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.255357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.255357][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.255357][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.255357][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.255357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.255357][ T10] [ 2821.258083][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2821.258083][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.258083][ T10] ipv6_find_idev+0x102/0x170 [ 2821.258083][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.258083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.258083][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.258083][ T10] netlink_unicast+0x449/0x710 [ 2821.258083][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.258083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.258083][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.258083][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.258083][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.258083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.258083][ T10] [ 2821.259972][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2821.259972][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.259972][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.259972][ T10] ipv6_find_idev+0x102/0x170 [ 2821.259972][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.259972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.259972][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.259972][ T10] netlink_unicast+0x449/0x710 [ 2821.259972][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.259972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.259972][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.259972][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.259972][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.259972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.259972][ T10] [ 2821.262546][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2821.262908][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2821.262908][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.262908][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.262908][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.262908][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.262908][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.262908][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.262908][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.262908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.262908][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.262908][ T10] netlink_unicast+0x449/0x710 [ 2821.262908][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.262908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.262908][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.262908][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.262908][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.262908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.262908][ T10] [ 2821.265383][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2821.265383][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.265383][ T10] ipv6_find_idev+0x102/0x170 [ 2821.265383][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.265383][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.265383][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.265383][ T10] netlink_unicast+0x449/0x710 [ 2821.265383][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.265383][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.265383][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.265383][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.265383][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.265383][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.265383][ T10] [ 2821.267342][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2821.267342][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.267342][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.267342][ T10] ipv6_find_idev+0x102/0x170 [ 2821.267342][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.267342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.267342][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.267342][ T10] netlink_unicast+0x449/0x710 [ 2821.267342][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.267342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.267342][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.267342][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.267342][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.267342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.267342][ T10] [ 2821.269687][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2821.270048][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2821.270048][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.270048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.270048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.270048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.270048][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.270048][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.270048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.270048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.270048][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.270048][ T10] netlink_unicast+0x449/0x710 [ 2821.270048][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.270048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.270048][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.270048][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.270048][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.270048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.270048][ T10] [ 2821.272531][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2821.272531][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.272531][ T10] ipv6_find_idev+0x102/0x170 [ 2821.272531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.272531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.272531][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.272531][ T10] netlink_unicast+0x449/0x710 [ 2821.272531][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.272531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.272531][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.272531][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.272531][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.272531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.272531][ T10] [ 2821.274339][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2821.274339][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.274339][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.274339][ T10] ipv6_find_idev+0x102/0x170 [ 2821.274339][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.274339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.274339][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.274339][ T10] netlink_unicast+0x449/0x710 [ 2821.274339][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.274339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.274339][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.274339][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.274339][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.274339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.274339][ T10] [ 2821.276395][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2821.276749][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2821.276749][ T10] netdev_get_by_index+0x5e/0x80 [ 2821.276749][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2821.276749][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2821.276749][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2821.276749][ T10] ipv6_add_addr+0x411/0x2000 [ 2821.276749][ T10] inet6_addr_add+0x30e/0xa40 [ 2821.276749][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2821.276749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.276749][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.276749][ T10] netlink_unicast+0x449/0x710 [ 2821.276749][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.276749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.276749][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.276749][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.276749][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.276749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.276749][ T10] [ 2821.279153][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2821.279153][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2821.279153][ T10] ipv6_find_idev+0x102/0x170 [ 2821.279153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.279153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.279153][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.279153][ T10] netlink_unicast+0x449/0x710 [ 2821.279153][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.279153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.279153][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.279153][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.279153][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.279153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.279153][ T10] [ 2821.280991][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2821.280991][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2821.280991][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2821.280991][ T10] ipv6_find_idev+0x102/0x170 [ 2821.280991][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2821.280991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2821.280991][ T10] netlink_rcv_skb+0x130/0x360 [ 2821.280991][ T10] netlink_unicast+0x449/0x710 [ 2821.280991][ T10] netlink_sendmsg+0x723/0xbe0 [ 2821.280991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2821.280991][ T10] ___sys_sendmsg+0xee/0x170 [ 2821.280991][ T10] __sys_sendmsg+0xcd/0x170 [ 2821.280991][ T10] do_syscall_64+0xc6/0x1e0 [ 2821.280991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2821.280991][ T10] [ 2831.363827][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2831.364298][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2831.364298][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.364298][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.364298][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.364298][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.364298][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.364298][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.364298][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.364298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.364298][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.364298][ T10] netlink_unicast+0x449/0x710 [ 2831.364298][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.364298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.364298][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.364298][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.364298][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.364298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.364298][ T10] [ 2831.366682][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2831.366682][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.366682][ T10] ipv6_find_idev+0x102/0x170 [ 2831.366682][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.366682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.366682][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.366682][ T10] netlink_unicast+0x449/0x710 [ 2831.366682][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.366682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.366682][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.366682][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.366682][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.366682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.366682][ T10] [ 2831.368519][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2831.368519][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.368519][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.368519][ T10] ipv6_find_idev+0x102/0x170 [ 2831.368519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.368519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.368519][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.368519][ T10] netlink_unicast+0x449/0x710 [ 2831.368519][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.368519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.368519][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.368519][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.368519][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.368519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.368519][ T10] [ 2831.370457][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2831.370764][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2831.370764][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.370764][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.370764][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.370764][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.370764][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.370764][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.370764][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.370764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.370764][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.370764][ T10] netlink_unicast+0x449/0x710 [ 2831.370764][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.370764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.370764][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.370764][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.370764][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.370764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.370764][ T10] [ 2831.373036][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2831.373036][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.373036][ T10] ipv6_find_idev+0x102/0x170 [ 2831.373036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.373036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.373036][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.373036][ T10] netlink_unicast+0x449/0x710 [ 2831.373036][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.373036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.373036][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.373036][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.373036][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.373036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.373036][ T10] [ 2831.374832][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2831.374832][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.374832][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.374832][ T10] ipv6_find_idev+0x102/0x170 [ 2831.374832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.374832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.374832][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.374832][ T10] netlink_unicast+0x449/0x710 [ 2831.374832][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.374832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.374832][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.374832][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.374832][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.374832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.374832][ T10] [ 2831.376753][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2831.377060][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2831.377060][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.377060][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.377060][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.377060][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.377060][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.377060][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.377060][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.377060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.377060][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.377060][ T10] netlink_unicast+0x449/0x710 [ 2831.377060][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.377060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.377060][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.377060][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.377060][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.377060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.377060][ T10] [ 2831.379426][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2831.379426][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.379426][ T10] ipv6_find_idev+0x102/0x170 [ 2831.379426][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.379426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.379426][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.379426][ T10] netlink_unicast+0x449/0x710 [ 2831.379426][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.379426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.379426][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.379426][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.379426][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.379426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.379426][ T10] [ 2831.381214][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2831.381214][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.381214][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.381214][ T10] ipv6_find_idev+0x102/0x170 [ 2831.381214][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.381214][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.381214][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.381214][ T10] netlink_unicast+0x449/0x710 [ 2831.381214][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.381214][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.381214][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.381214][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.381214][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.381214][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.381214][ T10] [ 2831.383165][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2831.383463][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2831.383463][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.383463][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.383463][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.383463][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.383463][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.383463][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.383463][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.383463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.383463][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.383463][ T10] netlink_unicast+0x449/0x710 [ 2831.383463][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.383463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.383463][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.383463][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.383463][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.383463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.383463][ T10] [ 2831.385728][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2831.385728][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.385728][ T10] ipv6_find_idev+0x102/0x170 [ 2831.385728][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.385728][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.385728][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.385728][ T10] netlink_unicast+0x449/0x710 [ 2831.385728][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.385728][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.385728][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.385728][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.385728][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.385728][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.385728][ T10] [ 2831.387480][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2831.387480][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.387480][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.387480][ T10] ipv6_find_idev+0x102/0x170 [ 2831.387480][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.387480][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.387480][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.387480][ T10] netlink_unicast+0x449/0x710 [ 2831.387480][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.387480][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.387480][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.387480][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.387480][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.387480][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.387480][ T10] [ 2831.389390][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2831.389703][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2831.389703][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.389703][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.389703][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.389703][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.389703][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.389703][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.389703][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.389703][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.389703][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.389703][ T10] netlink_unicast+0x449/0x710 [ 2831.389703][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.389703][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.389703][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.389703][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.389703][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.389703][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.389703][ T10] [ 2831.392001][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2831.392001][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.392001][ T10] ipv6_find_idev+0x102/0x170 [ 2831.392001][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.392001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.392001][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.392001][ T10] netlink_unicast+0x449/0x710 [ 2831.392001][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.392001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.392001][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.392001][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.392001][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.392001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.392001][ T10] [ 2831.393804][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2831.393804][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.393804][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.393804][ T10] ipv6_find_idev+0x102/0x170 [ 2831.393804][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.393804][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.393804][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.393804][ T10] netlink_unicast+0x449/0x710 [ 2831.393804][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.393804][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.393804][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.393804][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.393804][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.393804][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.393804][ T10] [ 2831.396067][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2831.396358][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2831.396358][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.396358][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.396358][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.396358][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.396358][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.396358][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.396358][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.396358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.396358][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.396358][ T10] netlink_unicast+0x449/0x710 [ 2831.396358][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.396358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.396358][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.396358][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.396358][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.396358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.396358][ T10] [ 2831.398834][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2831.398834][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.398834][ T10] ipv6_find_idev+0x102/0x170 [ 2831.398834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.398834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.398834][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.398834][ T10] netlink_unicast+0x449/0x710 [ 2831.398834][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.398834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.398834][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.398834][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.398834][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.398834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.398834][ T10] [ 2831.400774][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2831.400774][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.400774][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.400774][ T10] ipv6_find_idev+0x102/0x170 [ 2831.400774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.400774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.400774][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.400774][ T10] netlink_unicast+0x449/0x710 [ 2831.400774][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.400774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.400774][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.400774][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.400774][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.400774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.400774][ T10] [ 2831.402942][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2831.403250][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2831.403250][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.403250][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.403250][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.403250][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.403250][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.403250][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.403250][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.403250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.403250][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.403250][ T10] netlink_unicast+0x449/0x710 [ 2831.403250][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.403250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.403250][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.403250][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.403250][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.403250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.403250][ T10] [ 2831.405752][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2831.405752][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.405752][ T10] ipv6_find_idev+0x102/0x170 [ 2831.405752][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.405752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.405752][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.405752][ T10] netlink_unicast+0x449/0x710 [ 2831.405752][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.405752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.405752][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.405752][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.405752][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.405752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.405752][ T10] [ 2831.407785][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2831.407785][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.407785][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.407785][ T10] ipv6_find_idev+0x102/0x170 [ 2831.407785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.407785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.407785][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.407785][ T10] netlink_unicast+0x449/0x710 [ 2831.407785][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.407785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.407785][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.407785][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.407785][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.407785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.407785][ T10] [ 2831.410058][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2831.410356][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2831.410356][ T10] netdev_get_by_index+0x5e/0x80 [ 2831.410356][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2831.410356][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2831.410356][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2831.410356][ T10] ipv6_add_addr+0x411/0x2000 [ 2831.410356][ T10] inet6_addr_add+0x30e/0xa40 [ 2831.410356][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2831.410356][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.410356][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.410356][ T10] netlink_unicast+0x449/0x710 [ 2831.410356][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.410356][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.410356][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.410356][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.410356][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.410356][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.410356][ T10] [ 2831.412846][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2831.412846][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2831.412846][ T10] ipv6_find_idev+0x102/0x170 [ 2831.412846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.412846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.412846][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.412846][ T10] netlink_unicast+0x449/0x710 [ 2831.412846][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.412846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.412846][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.412846][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.412846][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.412846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.412846][ T10] [ 2831.414801][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2831.414801][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2831.414801][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2831.414801][ T10] ipv6_find_idev+0x102/0x170 [ 2831.414801][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2831.414801][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2831.414801][ T10] netlink_rcv_skb+0x130/0x360 [ 2831.414801][ T10] netlink_unicast+0x449/0x710 [ 2831.414801][ T10] netlink_sendmsg+0x723/0xbe0 [ 2831.414801][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2831.414801][ T10] ___sys_sendmsg+0xee/0x170 [ 2831.414801][ T10] __sys_sendmsg+0xcd/0x170 [ 2831.414801][ T10] do_syscall_64+0xc6/0x1e0 [ 2831.414801][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2831.414801][ T10] [ 2841.533661][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2841.534094][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2841.534094][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.534094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.534094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.534094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.534094][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.534094][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.534094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.534094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.534094][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.534094][ T10] netlink_unicast+0x449/0x710 [ 2841.534094][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.534094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.534094][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.534094][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.534094][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.534094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.534094][ T10] [ 2841.536516][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2841.536516][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.536516][ T10] ipv6_find_idev+0x102/0x170 [ 2841.536516][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.536516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.536516][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.536516][ T10] netlink_unicast+0x449/0x710 [ 2841.536516][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.536516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.536516][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.536516][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.536516][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.536516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.536516][ T10] [ 2841.538295][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2841.538295][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.538295][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.538295][ T10] ipv6_find_idev+0x102/0x170 [ 2841.538295][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.538295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.538295][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.538295][ T10] netlink_unicast+0x449/0x710 [ 2841.538295][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.538295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.538295][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.538295][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.538295][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.538295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.538295][ T10] [ 2841.540234][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2841.540529][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2841.540529][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.540529][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.540529][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.540529][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.540529][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.540529][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.540529][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.540529][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.540529][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.540529][ T10] netlink_unicast+0x449/0x710 [ 2841.540529][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.540529][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.540529][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.540529][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.540529][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.540529][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.540529][ T10] [ 2841.542876][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2841.542876][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.542876][ T10] ipv6_find_idev+0x102/0x170 [ 2841.542876][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.542876][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.542876][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.542876][ T10] netlink_unicast+0x449/0x710 [ 2841.542876][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.542876][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.542876][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.542876][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.542876][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.542876][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.542876][ T10] [ 2841.544632][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2841.544632][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.544632][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.544632][ T10] ipv6_find_idev+0x102/0x170 [ 2841.544632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.544632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.544632][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.544632][ T10] netlink_unicast+0x449/0x710 [ 2841.544632][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.544632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.544632][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.544632][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.544632][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.544632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.544632][ T10] [ 2841.546589][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2841.546982][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2841.546982][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.546982][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.546982][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.546982][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.546982][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.546982][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.546982][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.546982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.546982][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.546982][ T10] netlink_unicast+0x449/0x710 [ 2841.546982][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.546982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.546982][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.546982][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.546982][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.546982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.546982][ T10] [ 2841.549313][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2841.549313][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.549313][ T10] ipv6_find_idev+0x102/0x170 [ 2841.549313][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.549313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.549313][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.549313][ T10] netlink_unicast+0x449/0x710 [ 2841.549313][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.549313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.549313][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.549313][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.549313][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.549313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.549313][ T10] [ 2841.551086][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2841.551086][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.551086][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.551086][ T10] ipv6_find_idev+0x102/0x170 [ 2841.551086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.551086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.551086][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.551086][ T10] netlink_unicast+0x449/0x710 [ 2841.551086][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.551086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.551086][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.551086][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.551086][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.551086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.551086][ T10] [ 2841.553185][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2841.553488][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2841.553488][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.553488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.553488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.553488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.553488][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.553488][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.553488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.553488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.553488][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.553488][ T10] netlink_unicast+0x449/0x710 [ 2841.553488][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.553488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.553488][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.553488][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.553488][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.553488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.553488][ T10] [ 2841.556153][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2841.556153][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.556153][ T10] ipv6_find_idev+0x102/0x170 [ 2841.556153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.556153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.556153][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.556153][ T10] netlink_unicast+0x449/0x710 [ 2841.556153][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.556153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.556153][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.556153][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.556153][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.556153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.556153][ T10] [ 2841.558168][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2841.558168][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.558168][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.558168][ T10] ipv6_find_idev+0x102/0x170 [ 2841.558168][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.558168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.558168][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.558168][ T10] netlink_unicast+0x449/0x710 [ 2841.558168][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.558168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.558168][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.558168][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.558168][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.558168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.558168][ T10] [ 2841.560741][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2841.561044][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2841.561044][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.561044][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.561044][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.561044][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.561044][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.561044][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.561044][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.561044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.561044][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.561044][ T10] netlink_unicast+0x449/0x710 [ 2841.561044][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.561044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.561044][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.561044][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.561044][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.561044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.561044][ T10] [ 2841.563347][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2841.563347][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.563347][ T10] ipv6_find_idev+0x102/0x170 [ 2841.563347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.563347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.563347][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.563347][ T10] netlink_unicast+0x449/0x710 [ 2841.563347][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.563347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.563347][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.563347][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.563347][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.563347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.563347][ T10] [ 2841.565204][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2841.565204][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.565204][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.565204][ T10] ipv6_find_idev+0x102/0x170 [ 2841.565204][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.565204][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.565204][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.565204][ T10] netlink_unicast+0x449/0x710 [ 2841.565204][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.565204][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.565204][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.565204][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.565204][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.565204][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.565204][ T10] [ 2841.567470][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2841.567827][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2841.567827][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.567827][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.567827][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.567827][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.567827][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.567827][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.567827][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.567827][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.567827][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.567827][ T10] netlink_unicast+0x449/0x710 [ 2841.567827][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.567827][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.567827][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.567827][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.567827][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.567827][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.567827][ T10] [ 2841.570140][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2841.570140][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.570140][ T10] ipv6_find_idev+0x102/0x170 [ 2841.570140][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.570140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.570140][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.570140][ T10] netlink_unicast+0x449/0x710 [ 2841.570140][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.570140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.570140][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.570140][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.570140][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.570140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.570140][ T10] [ 2841.571921][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2841.571921][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.571921][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.571921][ T10] ipv6_find_idev+0x102/0x170 [ 2841.571921][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.571921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.571921][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.571921][ T10] netlink_unicast+0x449/0x710 [ 2841.571921][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.571921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.571921][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.571921][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.571921][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.571921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.571921][ T10] [ 2841.573901][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2841.574200][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2841.574200][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.574200][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.574200][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.574200][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.574200][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.574200][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.574200][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.574200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.574200][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.574200][ T10] netlink_unicast+0x449/0x710 [ 2841.574200][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.574200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.574200][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.574200][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.574200][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.574200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.574200][ T10] [ 2841.576530][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2841.576530][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.576530][ T10] ipv6_find_idev+0x102/0x170 [ 2841.576530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.576530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.576530][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.576530][ T10] netlink_unicast+0x449/0x710 [ 2841.576530][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.576530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.576530][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.576530][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.576530][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.576530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.576530][ T10] [ 2841.578319][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2841.578319][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.578319][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.578319][ T10] ipv6_find_idev+0x102/0x170 [ 2841.578319][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.578319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.578319][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.578319][ T10] netlink_unicast+0x449/0x710 [ 2841.578319][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.578319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.578319][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.578319][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.578319][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.578319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.578319][ T10] [ 2841.580319][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2841.580640][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2841.580640][ T10] netdev_get_by_index+0x5e/0x80 [ 2841.580640][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2841.580640][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2841.580640][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2841.580640][ T10] ipv6_add_addr+0x411/0x2000 [ 2841.580640][ T10] inet6_addr_add+0x30e/0xa40 [ 2841.580640][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2841.580640][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.580640][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.580640][ T10] netlink_unicast+0x449/0x710 [ 2841.580640][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.580640][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.580640][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.580640][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.580640][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.580640][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.580640][ T10] [ 2841.583213][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2841.583213][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2841.583213][ T10] ipv6_find_idev+0x102/0x170 [ 2841.583213][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.583213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.583213][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.583213][ T10] netlink_unicast+0x449/0x710 [ 2841.583213][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.583213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.583213][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.583213][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.583213][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.583213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.583213][ T10] [ 2841.585142][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2841.585142][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2841.585142][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2841.585142][ T10] ipv6_find_idev+0x102/0x170 [ 2841.585142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2841.585142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2841.585142][ T10] netlink_rcv_skb+0x130/0x360 [ 2841.585142][ T10] netlink_unicast+0x449/0x710 [ 2841.585142][ T10] netlink_sendmsg+0x723/0xbe0 [ 2841.585142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2841.585142][ T10] ___sys_sendmsg+0xee/0x170 [ 2841.585142][ T10] __sys_sendmsg+0xcd/0x170 [ 2841.585142][ T10] do_syscall_64+0xc6/0x1e0 [ 2841.585142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2841.585142][ T10] [ 2851.635758][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2851.636244][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2851.636244][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.636244][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.636244][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.636244][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.636244][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.636244][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.636244][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.636244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.636244][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.636244][ T10] netlink_unicast+0x449/0x710 [ 2851.636244][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.636244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.636244][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.636244][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.636244][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.636244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.636244][ T10] [ 2851.638441][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2851.638441][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.638441][ T10] ipv6_find_idev+0x102/0x170 [ 2851.638441][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.638441][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.638441][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.638441][ T10] netlink_unicast+0x449/0x710 [ 2851.638441][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.638441][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.638441][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.638441][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.638441][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.638441][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.638441][ T10] [ 2851.640147][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2851.640147][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.640147][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.640147][ T10] ipv6_find_idev+0x102/0x170 [ 2851.640147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.640147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.640147][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.640147][ T10] netlink_unicast+0x449/0x710 [ 2851.640147][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.640147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.640147][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.640147][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.640147][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.640147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.640147][ T10] [ 2851.641953][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2851.642240][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2851.642240][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.642240][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.642240][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.642240][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.642240][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.642240][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.642240][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.642240][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.642240][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.642240][ T10] netlink_unicast+0x449/0x710 [ 2851.642240][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.642240][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.642240][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.642240][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.642240][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.642240][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.642240][ T10] [ 2851.644368][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2851.644368][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.644368][ T10] ipv6_find_idev+0x102/0x170 [ 2851.644368][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.644368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.644368][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.644368][ T10] netlink_unicast+0x449/0x710 [ 2851.644368][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.644368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.644368][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.644368][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.644368][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.644368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.644368][ T10] [ 2851.646011][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2851.646011][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.646011][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.646011][ T10] ipv6_find_idev+0x102/0x170 [ 2851.646011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.646011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.646011][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.646011][ T10] netlink_unicast+0x449/0x710 [ 2851.646011][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.646011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.646011][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.646011][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.646011][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.646011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.646011][ T10] [ 2851.647794][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2851.648068][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2851.648068][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.648068][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.648068][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.648068][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.648068][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.648068][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.648068][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.648068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.648068][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.648068][ T10] netlink_unicast+0x449/0x710 [ 2851.648068][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.648068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.648068][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.648068][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.648068][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.648068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.648068][ T10] [ 2851.650161][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2851.650161][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.650161][ T10] ipv6_find_idev+0x102/0x170 [ 2851.650161][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.650161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.650161][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.650161][ T10] netlink_unicast+0x449/0x710 [ 2851.650161][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.650161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.650161][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.650161][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.650161][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.650161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.650161][ T10] [ 2851.651798][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2851.651798][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.651798][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.651798][ T10] ipv6_find_idev+0x102/0x170 [ 2851.651798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.651798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.651798][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.651798][ T10] netlink_unicast+0x449/0x710 [ 2851.651798][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.651798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.651798][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.651798][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.651798][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.651798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.651798][ T10] [ 2851.653575][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2851.654331][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2851.654331][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.654331][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.654331][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.654331][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.654331][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.654331][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.654331][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.654331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.654331][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.654331][ T10] netlink_unicast+0x449/0x710 [ 2851.654331][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.654331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.654331][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.654331][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.654331][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.654331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.654331][ T10] [ 2851.656420][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2851.656420][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.656420][ T10] ipv6_find_idev+0x102/0x170 [ 2851.656420][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.656420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.656420][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.656420][ T10] netlink_unicast+0x449/0x710 [ 2851.656420][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.656420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.656420][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.656420][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.656420][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.656420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.656420][ T10] [ 2851.658041][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2851.658041][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.658041][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.658041][ T10] ipv6_find_idev+0x102/0x170 [ 2851.658041][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.658041][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.658041][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.658041][ T10] netlink_unicast+0x449/0x710 [ 2851.658041][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.658041][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.658041][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.658041][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.658041][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.658041][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.658041][ T10] [ 2851.659863][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2851.660152][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2851.660152][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.660152][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.660152][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.660152][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.660152][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.660152][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.660152][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.660152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.660152][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.660152][ T10] netlink_unicast+0x449/0x710 [ 2851.660152][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.660152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.660152][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.660152][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.660152][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.660152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.660152][ T10] [ 2851.662256][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2851.662256][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.662256][ T10] ipv6_find_idev+0x102/0x170 [ 2851.662256][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.662256][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.662256][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.662256][ T10] netlink_unicast+0x449/0x710 [ 2851.662256][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.662256][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.662256][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.662256][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.662256][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.662256][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.662256][ T10] [ 2851.663872][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2851.663872][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.663872][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.663872][ T10] ipv6_find_idev+0x102/0x170 [ 2851.663872][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.663872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.663872][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.663872][ T10] netlink_unicast+0x449/0x710 [ 2851.663872][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.663872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.663872][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.663872][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.663872][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.663872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.663872][ T10] [ 2851.665699][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2851.665979][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2851.665979][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.665979][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.665979][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.665979][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.665979][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.665979][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.665979][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.665979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.665979][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.665979][ T10] netlink_unicast+0x449/0x710 [ 2851.665979][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.665979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.665979][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.665979][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.665979][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.665979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.665979][ T10] [ 2851.668211][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2851.668211][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.668211][ T10] ipv6_find_idev+0x102/0x170 [ 2851.668211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.668211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.668211][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.668211][ T10] netlink_unicast+0x449/0x710 [ 2851.668211][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.668211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.668211][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.668211][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.668211][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.668211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.668211][ T10] [ 2851.670082][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2851.670082][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.670082][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.670082][ T10] ipv6_find_idev+0x102/0x170 [ 2851.670082][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.670082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.670082][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.670082][ T10] netlink_unicast+0x449/0x710 [ 2851.670082][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.670082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.670082][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.670082][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.670082][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.670082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.670082][ T10] [ 2851.672145][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2851.672487][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2851.672487][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.672487][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.672487][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.672487][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.672487][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.672487][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.672487][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.672487][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.672487][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.672487][ T10] netlink_unicast+0x449/0x710 [ 2851.672487][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.672487][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.672487][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.672487][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.672487][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.672487][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.672487][ T10] [ 2851.674763][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2851.674763][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.674763][ T10] ipv6_find_idev+0x102/0x170 [ 2851.674763][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.674763][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.674763][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.674763][ T10] netlink_unicast+0x449/0x710 [ 2851.674763][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.674763][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.674763][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.674763][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.674763][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.674763][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.674763][ T10] [ 2851.676552][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2851.676552][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.676552][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.676552][ T10] ipv6_find_idev+0x102/0x170 [ 2851.676552][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.676552][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.676552][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.676552][ T10] netlink_unicast+0x449/0x710 [ 2851.676552][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.676552][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.676552][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.676552][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.676552][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.676552][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.676552][ T10] [ 2851.678546][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2851.678883][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2851.678883][ T10] netdev_get_by_index+0x5e/0x80 [ 2851.678883][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2851.678883][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2851.678883][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2851.678883][ T10] ipv6_add_addr+0x411/0x2000 [ 2851.678883][ T10] inet6_addr_add+0x30e/0xa40 [ 2851.678883][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2851.678883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.678883][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.678883][ T10] netlink_unicast+0x449/0x710 [ 2851.678883][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.678883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.678883][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.678883][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.678883][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.678883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.678883][ T10] [ 2851.681223][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2851.681223][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2851.681223][ T10] ipv6_find_idev+0x102/0x170 [ 2851.681223][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.681223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.681223][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.681223][ T10] netlink_unicast+0x449/0x710 [ 2851.681223][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.681223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.681223][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.681223][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.681223][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.681223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.681223][ T10] [ 2851.683009][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2851.683009][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2851.683009][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2851.683009][ T10] ipv6_find_idev+0x102/0x170 [ 2851.683009][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2851.683009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2851.683009][ T10] netlink_rcv_skb+0x130/0x360 [ 2851.683009][ T10] netlink_unicast+0x449/0x710 [ 2851.683009][ T10] netlink_sendmsg+0x723/0xbe0 [ 2851.683009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2851.683009][ T10] ___sys_sendmsg+0xee/0x170 [ 2851.683009][ T10] __sys_sendmsg+0xcd/0x170 [ 2851.683009][ T10] do_syscall_64+0xc6/0x1e0 [ 2851.683009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2851.683009][ T10] [ 2861.811918][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2861.812284][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2861.812284][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.812284][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.812284][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.812284][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.812284][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.812284][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.812284][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.812284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.812284][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.812284][ T10] netlink_unicast+0x449/0x710 [ 2861.812284][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.812284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.812284][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.812284][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.812284][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.812284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.812284][ T10] [ 2861.814475][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2861.814475][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.814475][ T10] ipv6_find_idev+0x102/0x170 [ 2861.814475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.814475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.814475][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.814475][ T10] netlink_unicast+0x449/0x710 [ 2861.814475][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.814475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.814475][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.814475][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.814475][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.814475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.814475][ T10] [ 2861.816147][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2861.816147][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.816147][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.816147][ T10] ipv6_find_idev+0x102/0x170 [ 2861.816147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.816147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.816147][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.816147][ T10] netlink_unicast+0x449/0x710 [ 2861.816147][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.816147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.816147][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.816147][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.816147][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.816147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.816147][ T10] [ 2861.817993][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2861.818309][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2861.818309][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.818309][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.818309][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.818309][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.818309][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.818309][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.818309][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.818309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.818309][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.818309][ T10] netlink_unicast+0x449/0x710 [ 2861.818309][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.818309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.818309][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.818309][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.818309][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.818309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.818309][ T10] [ 2861.820436][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2861.820436][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.820436][ T10] ipv6_find_idev+0x102/0x170 [ 2861.820436][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.820436][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.820436][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.820436][ T10] netlink_unicast+0x449/0x710 [ 2861.820436][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.820436][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.820436][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.820436][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.820436][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.820436][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.820436][ T10] [ 2861.822057][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2861.822057][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.822057][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.822057][ T10] ipv6_find_idev+0x102/0x170 [ 2861.822057][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.822057][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.822057][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.822057][ T10] netlink_unicast+0x449/0x710 [ 2861.822057][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.822057][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.822057][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.822057][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.822057][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.822057][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.822057][ T10] [ 2861.824055][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2861.824345][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2861.824345][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.824345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.824345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.824345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.824345][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.824345][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.824345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.824345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.824345][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.824345][ T10] netlink_unicast+0x449/0x710 [ 2861.824345][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.824345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.824345][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.824345][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.824345][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.824345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.824345][ T10] [ 2861.826630][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2861.826630][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.826630][ T10] ipv6_find_idev+0x102/0x170 [ 2861.826630][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.826630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.826630][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.826630][ T10] netlink_unicast+0x449/0x710 [ 2861.826630][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.826630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.826630][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.826630][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.826630][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.826630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.826630][ T10] [ 2861.828438][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2861.828438][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.828438][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.828438][ T10] ipv6_find_idev+0x102/0x170 [ 2861.828438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.828438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.828438][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.828438][ T10] netlink_unicast+0x449/0x710 [ 2861.828438][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.828438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.828438][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.828438][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.828438][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.828438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.828438][ T10] [ 2861.830460][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2861.830809][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2861.830809][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.830809][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.830809][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.830809][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.830809][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.830809][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.830809][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.830809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.830809][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.830809][ T10] netlink_unicast+0x449/0x710 [ 2861.830809][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.830809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.830809][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.830809][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.830809][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.830809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.830809][ T10] [ 2861.833065][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2861.833065][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.833065][ T10] ipv6_find_idev+0x102/0x170 [ 2861.833065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.833065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.833065][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.833065][ T10] netlink_unicast+0x449/0x710 [ 2861.833065][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.833065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.833065][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.833065][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.833065][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.833065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.833065][ T10] [ 2861.834806][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2861.834806][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.834806][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.834806][ T10] ipv6_find_idev+0x102/0x170 [ 2861.834806][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.834806][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.834806][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.834806][ T10] netlink_unicast+0x449/0x710 [ 2861.834806][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.834806][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.834806][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.834806][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.834806][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.834806][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.834806][ T10] [ 2861.836805][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2861.837094][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2861.837094][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.837094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.837094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.837094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.837094][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.837094][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.837094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.837094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.837094][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.837094][ T10] netlink_unicast+0x449/0x710 [ 2861.837094][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.837094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.837094][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.837094][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.837094][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.837094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.837094][ T10] [ 2861.839380][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2861.839380][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.839380][ T10] ipv6_find_idev+0x102/0x170 [ 2861.839380][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.839380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.839380][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.839380][ T10] netlink_unicast+0x449/0x710 [ 2861.839380][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.839380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.839380][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.839380][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.839380][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.839380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.839380][ T10] [ 2861.841063][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2861.841063][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.841063][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.841063][ T10] ipv6_find_idev+0x102/0x170 [ 2861.841063][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.841063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.841063][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.841063][ T10] netlink_unicast+0x449/0x710 [ 2861.841063][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.841063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.841063][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.841063][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.841063][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.841063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.841063][ T10] [ 2861.843076][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2861.843370][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2861.843370][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.843370][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.843370][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.843370][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.843370][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.843370][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.843370][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.843370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.843370][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.843370][ T10] netlink_unicast+0x449/0x710 [ 2861.843370][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.843370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.843370][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.843370][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.843370][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.843370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.843370][ T10] [ 2861.845822][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2861.845822][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.845822][ T10] ipv6_find_idev+0x102/0x170 [ 2861.845822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.845822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.845822][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.845822][ T10] netlink_unicast+0x449/0x710 [ 2861.845822][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.845822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.845822][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.845822][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.845822][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.845822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.845822][ T10] [ 2861.847664][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2861.847664][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.847664][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.847664][ T10] ipv6_find_idev+0x102/0x170 [ 2861.847664][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.847664][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.847664][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.847664][ T10] netlink_unicast+0x449/0x710 [ 2861.847664][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.847664][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.847664][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.847664][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.847664][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.847664][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.847664][ T10] [ 2861.849698][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2861.849986][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2861.849986][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.849986][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.849986][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.849986][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.849986][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.849986][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.849986][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.849986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.849986][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.849986][ T10] netlink_unicast+0x449/0x710 [ 2861.849986][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.849986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.849986][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.849986][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.849986][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.849986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.849986][ T10] [ 2861.852348][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2861.852348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.852348][ T10] ipv6_find_idev+0x102/0x170 [ 2861.852348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.852348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.852348][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.852348][ T10] netlink_unicast+0x449/0x710 [ 2861.852348][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.852348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.852348][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.852348][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.852348][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.852348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.852348][ T10] [ 2861.854047][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2861.854047][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.854047][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.854047][ T10] ipv6_find_idev+0x102/0x170 [ 2861.854047][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.854047][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.854047][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.854047][ T10] netlink_unicast+0x449/0x710 [ 2861.854047][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.854047][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.854047][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.854047][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.854047][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.854047][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.854047][ T10] [ 2861.856131][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2861.856425][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2861.856425][ T10] netdev_get_by_index+0x5e/0x80 [ 2861.856425][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2861.856425][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2861.856425][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2861.856425][ T10] ipv6_add_addr+0x411/0x2000 [ 2861.856425][ T10] inet6_addr_add+0x30e/0xa40 [ 2861.856425][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2861.856425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.856425][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.856425][ T10] netlink_unicast+0x449/0x710 [ 2861.856425][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.856425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.856425][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.856425][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.856425][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.856425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.856425][ T10] [ 2861.858650][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2861.858650][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2861.858650][ T10] ipv6_find_idev+0x102/0x170 [ 2861.858650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.858650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.858650][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.858650][ T10] netlink_unicast+0x449/0x710 [ 2861.858650][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.858650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.858650][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.858650][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.858650][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.858650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.858650][ T10] [ 2861.860404][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2861.860404][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2861.860404][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2861.860404][ T10] ipv6_find_idev+0x102/0x170 [ 2861.860404][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2861.860404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2861.860404][ T10] netlink_rcv_skb+0x130/0x360 [ 2861.860404][ T10] netlink_unicast+0x449/0x710 [ 2861.860404][ T10] netlink_sendmsg+0x723/0xbe0 [ 2861.860404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2861.860404][ T10] ___sys_sendmsg+0xee/0x170 [ 2861.860404][ T10] __sys_sendmsg+0xcd/0x170 [ 2861.860404][ T10] do_syscall_64+0xc6/0x1e0 [ 2861.860404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2861.860404][ T10] [ 2872.035673][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2872.036071][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2872.036071][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.036071][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.036071][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.036071][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.036071][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.036071][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.036071][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.036071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.036071][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.036071][ T10] netlink_unicast+0x449/0x710 [ 2872.036071][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.036071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.036071][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.036071][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.036071][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.036071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.036071][ T10] [ 2872.038441][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2872.038441][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.038441][ T10] ipv6_find_idev+0x102/0x170 [ 2872.038441][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.038441][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.038441][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.038441][ T10] netlink_unicast+0x449/0x710 [ 2872.038441][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.038441][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.038441][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.038441][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.038441][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.038441][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.038441][ T10] [ 2872.040267][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2872.040267][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.040267][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.040267][ T10] ipv6_find_idev+0x102/0x170 [ 2872.040267][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.040267][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.040267][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.040267][ T10] netlink_unicast+0x449/0x710 [ 2872.040267][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.040267][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.040267][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.040267][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.040267][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.040267][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.040267][ T10] [ 2872.042299][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2872.042613][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2872.042613][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.042613][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.042613][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.042613][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.042613][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.042613][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.042613][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.042613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.042613][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.042613][ T10] netlink_unicast+0x449/0x710 [ 2872.042613][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.042613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.042613][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.042613][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.042613][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.042613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.042613][ T10] [ 2872.044997][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2872.044997][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.044997][ T10] ipv6_find_idev+0x102/0x170 [ 2872.044997][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.044997][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.044997][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.044997][ T10] netlink_unicast+0x449/0x710 [ 2872.044997][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.044997][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.044997][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.044997][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.044997][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.044997][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.044997][ T10] [ 2872.046837][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2872.046837][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.046837][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.046837][ T10] ipv6_find_idev+0x102/0x170 [ 2872.046837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.046837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.046837][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.046837][ T10] netlink_unicast+0x449/0x710 [ 2872.046837][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.046837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.046837][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.046837][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.046837][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.046837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.046837][ T10] [ 2872.048896][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2872.049291][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2872.049291][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.049291][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.049291][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.049291][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.049291][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.049291][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.049291][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.049291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.049291][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.049291][ T10] netlink_unicast+0x449/0x710 [ 2872.049291][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.049291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.049291][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.049291][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.049291][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.049291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.049291][ T10] [ 2872.051919][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2872.051919][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.051919][ T10] ipv6_find_idev+0x102/0x170 [ 2872.051919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.051919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.051919][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.051919][ T10] netlink_unicast+0x449/0x710 [ 2872.051919][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.051919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.051919][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.051919][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.051919][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.051919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.051919][ T10] [ 2872.053971][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2872.053971][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.053971][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.053971][ T10] ipv6_find_idev+0x102/0x170 [ 2872.053971][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.053971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.053971][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.053971][ T10] netlink_unicast+0x449/0x710 [ 2872.053971][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.053971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.053971][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.053971][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.053971][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.053971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.053971][ T10] [ 2872.056226][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2872.056525][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2872.056525][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.056525][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.056525][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.056525][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.056525][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.056525][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.056525][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.056525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.056525][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.056525][ T10] netlink_unicast+0x449/0x710 [ 2872.056525][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.056525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.056525][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.056525][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.056525][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.056525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.056525][ T10] [ 2872.059155][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2872.059155][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.059155][ T10] ipv6_find_idev+0x102/0x170 [ 2872.059155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.059155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.059155][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.059155][ T10] netlink_unicast+0x449/0x710 [ 2872.059155][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.059155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.059155][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.059155][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.059155][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.059155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.059155][ T10] [ 2872.061189][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2872.061189][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.061189][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.061189][ T10] ipv6_find_idev+0x102/0x170 [ 2872.061189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.061189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.061189][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.061189][ T10] netlink_unicast+0x449/0x710 [ 2872.061189][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.061189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.061189][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.061189][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.061189][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.061189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.061189][ T10] [ 2872.063477][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2872.063886][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2872.063886][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.063886][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.063886][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.063886][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.063886][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.063886][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.063886][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.063886][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.063886][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.063886][ T10] netlink_unicast+0x449/0x710 [ 2872.063886][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.063886][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.063886][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.063886][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.063886][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.063886][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.063886][ T10] [ 2872.066523][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2872.066523][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.066523][ T10] ipv6_find_idev+0x102/0x170 [ 2872.066523][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.066523][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.066523][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.066523][ T10] netlink_unicast+0x449/0x710 [ 2872.066523][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.066523][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.066523][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.066523][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.066523][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.066523][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.066523][ T10] [ 2872.068491][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2872.068491][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.068491][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.068491][ T10] ipv6_find_idev+0x102/0x170 [ 2872.068491][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.068491][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.068491][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.068491][ T10] netlink_unicast+0x449/0x710 [ 2872.068491][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.068491][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.068491][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.068491][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.068491][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.068491][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.068491][ T10] [ 2872.070713][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2872.071121][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2872.071121][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.071121][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.071121][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.071121][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.071121][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.071121][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.071121][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.071121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.071121][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.071121][ T10] netlink_unicast+0x449/0x710 [ 2872.071121][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.071121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.071121][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.071121][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.071121][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.071121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.071121][ T10] [ 2872.073855][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2872.073855][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.073855][ T10] ipv6_find_idev+0x102/0x170 [ 2872.073855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.073855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.073855][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.073855][ T10] netlink_unicast+0x449/0x710 [ 2872.073855][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.073855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.073855][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.073855][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.073855][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.073855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.073855][ T10] [ 2872.075742][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2872.075742][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.075742][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.075742][ T10] ipv6_find_idev+0x102/0x170 [ 2872.075742][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.075742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.075742][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.075742][ T10] netlink_unicast+0x449/0x710 [ 2872.075742][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.075742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.075742][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.075742][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.075742][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.075742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.075742][ T10] [ 2872.077965][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2872.078249][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2872.078249][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.078249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.078249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.078249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.078249][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.078249][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.078249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.078249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.078249][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.078249][ T10] netlink_unicast+0x449/0x710 [ 2872.078249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.078249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.078249][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.078249][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.078249][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.078249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.078249][ T10] [ 2872.080730][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2872.080730][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.080730][ T10] ipv6_find_idev+0x102/0x170 [ 2872.080730][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.080730][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.080730][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.080730][ T10] netlink_unicast+0x449/0x710 [ 2872.080730][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.080730][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.080730][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.080730][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.080730][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.080730][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.080730][ T10] [ 2872.082760][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2872.082760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.082760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.082760][ T10] ipv6_find_idev+0x102/0x170 [ 2872.082760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.082760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.082760][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.082760][ T10] netlink_unicast+0x449/0x710 [ 2872.082760][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.082760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.082760][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.082760][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.082760][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.082760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.082760][ T10] [ 2872.084985][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2872.085362][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2872.085362][ T10] netdev_get_by_index+0x5e/0x80 [ 2872.085362][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2872.085362][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2872.085362][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2872.085362][ T10] ipv6_add_addr+0x411/0x2000 [ 2872.085362][ T10] inet6_addr_add+0x30e/0xa40 [ 2872.085362][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2872.085362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.085362][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.085362][ T10] netlink_unicast+0x449/0x710 [ 2872.085362][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.085362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.085362][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.085362][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.085362][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.085362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.085362][ T10] [ 2872.088246][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2872.088246][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2872.088246][ T10] ipv6_find_idev+0x102/0x170 [ 2872.088246][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.088246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.088246][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.088246][ T10] netlink_unicast+0x449/0x710 [ 2872.088246][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.088246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.088246][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.088246][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.088246][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.088246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.088246][ T10] [ 2872.090201][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2872.090201][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2872.090201][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2872.090201][ T10] ipv6_find_idev+0x102/0x170 [ 2872.090201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2872.090201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2872.090201][ T10] netlink_rcv_skb+0x130/0x360 [ 2872.090201][ T10] netlink_unicast+0x449/0x710 [ 2872.090201][ T10] netlink_sendmsg+0x723/0xbe0 [ 2872.090201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2872.090201][ T10] ___sys_sendmsg+0xee/0x170 [ 2872.090201][ T10] __sys_sendmsg+0xcd/0x170 [ 2872.090201][ T10] do_syscall_64+0xc6/0x1e0 [ 2872.090201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2872.090201][ T10] [ 2882.203686][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2882.204063][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2882.204063][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.204063][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.204063][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.204063][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.204063][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.204063][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.204063][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.204063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.204063][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.204063][ T10] netlink_unicast+0x449/0x710 [ 2882.204063][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.204063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.204063][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.204063][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.204063][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.204063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.204063][ T10] [ 2882.206211][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2882.206211][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.206211][ T10] ipv6_find_idev+0x102/0x170 [ 2882.206211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.206211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.206211][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.206211][ T10] netlink_unicast+0x449/0x710 [ 2882.206211][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.206211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.206211][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.206211][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.206211][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.206211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.206211][ T10] [ 2882.207887][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2882.207887][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.207887][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.207887][ T10] ipv6_find_idev+0x102/0x170 [ 2882.207887][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.207887][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.207887][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.207887][ T10] netlink_unicast+0x449/0x710 [ 2882.207887][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.207887][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.207887][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.207887][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.207887][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.207887][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.207887][ T10] [ 2882.209702][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2882.209992][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2882.209992][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.209992][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.209992][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.209992][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.209992][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.209992][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.209992][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.209992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.209992][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.209992][ T10] netlink_unicast+0x449/0x710 [ 2882.209992][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.209992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.209992][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.209992][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.209992][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.209992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.209992][ T10] [ 2882.212117][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2882.212117][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.212117][ T10] ipv6_find_idev+0x102/0x170 [ 2882.212117][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.212117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.212117][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.212117][ T10] netlink_unicast+0x449/0x710 [ 2882.212117][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.212117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.212117][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.212117][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.212117][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.212117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.212117][ T10] [ 2882.213743][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2882.213743][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.213743][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.213743][ T10] ipv6_find_idev+0x102/0x170 [ 2882.213743][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.213743][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.213743][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.213743][ T10] netlink_unicast+0x449/0x710 [ 2882.213743][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.213743][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.213743][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.213743][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.213743][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.213743][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.213743][ T10] [ 2882.215612][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2882.215931][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2882.215931][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.215931][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.215931][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.215931][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.215931][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.215931][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.215931][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.215931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.215931][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.215931][ T10] netlink_unicast+0x449/0x710 [ 2882.215931][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.215931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.215931][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.215931][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.215931][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.215931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.215931][ T10] [ 2882.218059][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2882.218059][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.218059][ T10] ipv6_find_idev+0x102/0x170 [ 2882.218059][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.218059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.218059][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.218059][ T10] netlink_unicast+0x449/0x710 [ 2882.218059][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.218059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.218059][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.218059][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.218059][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.218059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.218059][ T10] [ 2882.219682][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2882.219682][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.219682][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.219682][ T10] ipv6_find_idev+0x102/0x170 [ 2882.219682][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.219682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.219682][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.219682][ T10] netlink_unicast+0x449/0x710 [ 2882.219682][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.219682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.219682][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.219682][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.219682][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.219682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.219682][ T10] [ 2882.221500][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2882.222284][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2882.222284][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.222284][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.222284][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.222284][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.222284][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.222284][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.222284][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.222284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.222284][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.222284][ T10] netlink_unicast+0x449/0x710 [ 2882.222284][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.222284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.222284][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.222284][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.222284][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.222284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.222284][ T10] [ 2882.224392][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2882.224392][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.224392][ T10] ipv6_find_idev+0x102/0x170 [ 2882.224392][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.224392][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.224392][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.224392][ T10] netlink_unicast+0x449/0x710 [ 2882.224392][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.224392][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.224392][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.224392][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.224392][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.224392][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.224392][ T10] [ 2882.226036][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2882.226036][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.226036][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.226036][ T10] ipv6_find_idev+0x102/0x170 [ 2882.226036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.226036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.226036][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.226036][ T10] netlink_unicast+0x449/0x710 [ 2882.226036][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.226036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.226036][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.226036][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.226036][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.226036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.226036][ T10] [ 2882.227897][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2882.228239][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2882.228239][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.228239][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.228239][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.228239][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.228239][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.228239][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.228239][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.228239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.228239][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.228239][ T10] netlink_unicast+0x449/0x710 [ 2882.228239][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.228239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.228239][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.228239][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.228239][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.228239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.228239][ T10] [ 2882.230360][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2882.230360][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.230360][ T10] ipv6_find_idev+0x102/0x170 [ 2882.230360][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.230360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.230360][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.230360][ T10] netlink_unicast+0x449/0x710 [ 2882.230360][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.230360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.230360][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.230360][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.230360][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.230360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.230360][ T10] [ 2882.231999][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2882.231999][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.231999][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.231999][ T10] ipv6_find_idev+0x102/0x170 [ 2882.231999][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.231999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.231999][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.231999][ T10] netlink_unicast+0x449/0x710 [ 2882.231999][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.231999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.231999][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.231999][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.231999][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.231999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.231999][ T10] [ 2882.233844][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2882.234133][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2882.234133][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.234133][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.234133][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.234133][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.234133][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.234133][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.234133][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.234133][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.234133][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.234133][ T10] netlink_unicast+0x449/0x710 [ 2882.234133][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.234133][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.234133][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.234133][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.234133][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.234133][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.234133][ T10] [ 2882.236256][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2882.236256][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.236256][ T10] ipv6_find_idev+0x102/0x170 [ 2882.236256][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.236256][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.236256][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.236256][ T10] netlink_unicast+0x449/0x710 [ 2882.236256][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.236256][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.236256][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.236256][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.236256][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.236256][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.236256][ T10] [ 2882.238090][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2882.238090][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.238090][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.238090][ T10] ipv6_find_idev+0x102/0x170 [ 2882.238090][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.238090][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.238090][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.238090][ T10] netlink_unicast+0x449/0x710 [ 2882.238090][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.238090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.238090][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.238090][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.238090][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.238090][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.238090][ T10] [ 2882.240135][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2882.240424][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2882.240424][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.240424][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.240424][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.240424][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.240424][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.240424][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.240424][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.240424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.240424][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.240424][ T10] netlink_unicast+0x449/0x710 [ 2882.240424][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.240424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.240424][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.240424][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.240424][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.240424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.240424][ T10] [ 2882.242812][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2882.242812][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.242812][ T10] ipv6_find_idev+0x102/0x170 [ 2882.242812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.242812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.242812][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.242812][ T10] netlink_unicast+0x449/0x710 [ 2882.242812][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.242812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.242812][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.242812][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.242812][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.242812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.242812][ T10] [ 2882.244633][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2882.244633][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.244633][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.244633][ T10] ipv6_find_idev+0x102/0x170 [ 2882.244633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.244633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.244633][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.244633][ T10] netlink_unicast+0x449/0x710 [ 2882.244633][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.244633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.244633][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.244633][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.244633][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.244633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.244633][ T10] [ 2882.246700][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2882.246995][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2882.246995][ T10] netdev_get_by_index+0x5e/0x80 [ 2882.246995][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2882.246995][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2882.246995][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2882.246995][ T10] ipv6_add_addr+0x411/0x2000 [ 2882.246995][ T10] inet6_addr_add+0x30e/0xa40 [ 2882.246995][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2882.246995][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.246995][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.246995][ T10] netlink_unicast+0x449/0x710 [ 2882.246995][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.246995][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.246995][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.246995][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.246995][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.246995][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.246995][ T10] [ 2882.249245][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2882.249245][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2882.249245][ T10] ipv6_find_idev+0x102/0x170 [ 2882.249245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.249245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.249245][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.249245][ T10] netlink_unicast+0x449/0x710 [ 2882.249245][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.249245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.249245][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.249245][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.249245][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.249245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.249245][ T10] [ 2882.251056][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2882.251056][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2882.251056][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2882.251056][ T10] ipv6_find_idev+0x102/0x170 [ 2882.251056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2882.251056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2882.251056][ T10] netlink_rcv_skb+0x130/0x360 [ 2882.251056][ T10] netlink_unicast+0x449/0x710 [ 2882.251056][ T10] netlink_sendmsg+0x723/0xbe0 [ 2882.251056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2882.251056][ T10] ___sys_sendmsg+0xee/0x170 [ 2882.251056][ T10] __sys_sendmsg+0xcd/0x170 [ 2882.251056][ T10] do_syscall_64+0xc6/0x1e0 [ 2882.251056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2882.251056][ T10] [ 2892.331661][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2892.332043][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2892.332043][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.332043][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.332043][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.332043][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.332043][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.332043][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.332043][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.332043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.332043][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.332043][ T10] netlink_unicast+0x449/0x710 [ 2892.332043][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.332043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.332043][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.332043][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.332043][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.332043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.332043][ T10] [ 2892.334388][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2892.334388][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.334388][ T10] ipv6_find_idev+0x102/0x170 [ 2892.334388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.334388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.334388][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.334388][ T10] netlink_unicast+0x449/0x710 [ 2892.334388][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.334388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.334388][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.334388][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.334388][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.334388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.334388][ T10] [ 2892.336159][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2892.336159][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.336159][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.336159][ T10] ipv6_find_idev+0x102/0x170 [ 2892.336159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.336159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.336159][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.336159][ T10] netlink_unicast+0x449/0x710 [ 2892.336159][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.336159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.336159][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.336159][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.336159][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.336159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.336159][ T10] [ 2892.338147][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2892.338458][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2892.338458][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.338458][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.338458][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.338458][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.338458][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.338458][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.338458][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.338458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.338458][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.338458][ T10] netlink_unicast+0x449/0x710 [ 2892.338458][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.338458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.338458][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.338458][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.338458][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.338458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.338458][ T10] [ 2892.341076][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2892.341076][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.341076][ T10] ipv6_find_idev+0x102/0x170 [ 2892.341076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.341076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.341076][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.341076][ T10] netlink_unicast+0x449/0x710 [ 2892.341076][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.341076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.341076][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.341076][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.341076][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.341076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.341076][ T10] [ 2892.343124][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2892.343124][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.343124][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.343124][ T10] ipv6_find_idev+0x102/0x170 [ 2892.343124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.343124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.343124][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.343124][ T10] netlink_unicast+0x449/0x710 [ 2892.343124][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.343124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.343124][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.343124][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.343124][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.343124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.343124][ T10] [ 2892.345314][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2892.345650][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2892.345650][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.345650][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.345650][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.345650][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.345650][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.345650][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.345650][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.345650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.345650][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.345650][ T10] netlink_unicast+0x449/0x710 [ 2892.345650][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.345650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.345650][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.345650][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.345650][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.345650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.345650][ T10] [ 2892.348333][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2892.348333][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.348333][ T10] ipv6_find_idev+0x102/0x170 [ 2892.348333][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.348333][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.348333][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.348333][ T10] netlink_unicast+0x449/0x710 [ 2892.348333][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.348333][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.348333][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.348333][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.348333][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.348333][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.348333][ T10] [ 2892.350413][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2892.350413][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.350413][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.350413][ T10] ipv6_find_idev+0x102/0x170 [ 2892.350413][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.350413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.350413][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.350413][ T10] netlink_unicast+0x449/0x710 [ 2892.350413][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.350413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.350413][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.350413][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.350413][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.350413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.350413][ T10] [ 2892.352593][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2892.353341][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2892.353341][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.353341][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.353341][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.353341][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.353341][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.353341][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.353341][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.353341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.353341][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.353341][ T10] netlink_unicast+0x449/0x710 [ 2892.353341][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.353341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.353341][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.353341][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.353341][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.353341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.353341][ T10] [ 2892.355673][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2892.355673][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.355673][ T10] ipv6_find_idev+0x102/0x170 [ 2892.355673][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.355673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.355673][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.355673][ T10] netlink_unicast+0x449/0x710 [ 2892.355673][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.355673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.355673][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.355673][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.355673][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.355673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.355673][ T10] [ 2892.357608][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2892.357608][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.357608][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.357608][ T10] ipv6_find_idev+0x102/0x170 [ 2892.357608][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.357608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.357608][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.357608][ T10] netlink_unicast+0x449/0x710 [ 2892.357608][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.357608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.357608][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.357608][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.357608][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.357608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.357608][ T10] [ 2892.359813][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2892.360111][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2892.360111][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.360111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.360111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.360111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.360111][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.360111][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.360111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.360111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.360111][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.360111][ T10] netlink_unicast+0x449/0x710 [ 2892.360111][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.360111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.360111][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.360111][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.360111][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.360111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.360111][ T10] [ 2892.362577][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2892.362577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.362577][ T10] ipv6_find_idev+0x102/0x170 [ 2892.362577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.362577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.362577][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.362577][ T10] netlink_unicast+0x449/0x710 [ 2892.362577][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.362577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.362577][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.362577][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.362577][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.362577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.362577][ T10] [ 2892.364550][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2892.364550][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.364550][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.364550][ T10] ipv6_find_idev+0x102/0x170 [ 2892.364550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.364550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.364550][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.364550][ T10] netlink_unicast+0x449/0x710 [ 2892.364550][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.364550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.364550][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.364550][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.364550][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.364550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.364550][ T10] [ 2892.366674][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2892.366977][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2892.366977][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.366977][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.366977][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.366977][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.366977][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.366977][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.366977][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.366977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.366977][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.366977][ T10] netlink_unicast+0x449/0x710 [ 2892.366977][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.366977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.366977][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.366977][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.366977][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.366977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.366977][ T10] [ 2892.369590][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2892.369590][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.369590][ T10] ipv6_find_idev+0x102/0x170 [ 2892.369590][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.369590][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.369590][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.369590][ T10] netlink_unicast+0x449/0x710 [ 2892.369590][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.369590][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.369590][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.369590][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.369590][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.369590][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.369590][ T10] [ 2892.371900][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2892.371900][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.371900][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.371900][ T10] ipv6_find_idev+0x102/0x170 [ 2892.371900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.371900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.371900][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.371900][ T10] netlink_unicast+0x449/0x710 [ 2892.371900][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.371900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.371900][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.371900][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.371900][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.371900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.371900][ T10] [ 2892.374011][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2892.374312][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2892.374312][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.374312][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.374312][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.374312][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.374312][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.374312][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.374312][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.374312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.374312][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.374312][ T10] netlink_unicast+0x449/0x710 [ 2892.374312][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.374312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.374312][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.374312][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.374312][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.374312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.374312][ T10] [ 2892.376810][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2892.376810][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.376810][ T10] ipv6_find_idev+0x102/0x170 [ 2892.376810][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.376810][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.376810][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.376810][ T10] netlink_unicast+0x449/0x710 [ 2892.376810][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.376810][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.376810][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.376810][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.376810][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.376810][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.376810][ T10] [ 2892.378697][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2892.378697][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.378697][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.378697][ T10] ipv6_find_idev+0x102/0x170 [ 2892.378697][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.378697][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.378697][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.378697][ T10] netlink_unicast+0x449/0x710 [ 2892.378697][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.378697][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.378697][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.378697][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.378697][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.378697][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.378697][ T10] [ 2892.380635][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2892.380975][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2892.380975][ T10] netdev_get_by_index+0x5e/0x80 [ 2892.380975][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2892.380975][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2892.380975][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2892.380975][ T10] ipv6_add_addr+0x411/0x2000 [ 2892.380975][ T10] inet6_addr_add+0x30e/0xa40 [ 2892.380975][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2892.380975][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.380975][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.380975][ T10] netlink_unicast+0x449/0x710 [ 2892.380975][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.380975][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.380975][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.380975][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.380975][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.380975][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.380975][ T10] [ 2892.383371][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2892.383371][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2892.383371][ T10] ipv6_find_idev+0x102/0x170 [ 2892.383371][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.383371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.383371][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.383371][ T10] netlink_unicast+0x449/0x710 [ 2892.383371][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.383371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.383371][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.383371][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.383371][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.383371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.383371][ T10] [ 2892.385327][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2892.385327][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2892.385327][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2892.385327][ T10] ipv6_find_idev+0x102/0x170 [ 2892.385327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2892.385327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2892.385327][ T10] netlink_rcv_skb+0x130/0x360 [ 2892.385327][ T10] netlink_unicast+0x449/0x710 [ 2892.385327][ T10] netlink_sendmsg+0x723/0xbe0 [ 2892.385327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2892.385327][ T10] ___sys_sendmsg+0xee/0x170 [ 2892.385327][ T10] __sys_sendmsg+0xcd/0x170 [ 2892.385327][ T10] do_syscall_64+0xc6/0x1e0 [ 2892.385327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2892.385327][ T10] [ 2902.531747][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2902.532110][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2902.532110][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.532110][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.532110][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.532110][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.532110][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.532110][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.532110][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.532110][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.532110][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.532110][ T10] netlink_unicast+0x449/0x710 [ 2902.532110][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.532110][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.532110][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.532110][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.532110][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.532110][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.532110][ T10] [ 2902.534442][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2902.534442][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.534442][ T10] ipv6_find_idev+0x102/0x170 [ 2902.534442][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.534442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.534442][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.534442][ T10] netlink_unicast+0x449/0x710 [ 2902.534442][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.534442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.534442][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.534442][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.534442][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.534442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.534442][ T10] [ 2902.536250][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2902.536250][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.536250][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.536250][ T10] ipv6_find_idev+0x102/0x170 [ 2902.536250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.536250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.536250][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.536250][ T10] netlink_unicast+0x449/0x710 [ 2902.536250][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.536250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.536250][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.536250][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.536250][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.536250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.536250][ T10] [ 2902.538232][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2902.538536][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2902.538536][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.538536][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.538536][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.538536][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.538536][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.538536][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.538536][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.538536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.538536][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.538536][ T10] netlink_unicast+0x449/0x710 [ 2902.538536][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.538536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.538536][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.538536][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.538536][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.538536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.538536][ T10] [ 2902.540917][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2902.540917][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.540917][ T10] ipv6_find_idev+0x102/0x170 [ 2902.540917][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.540917][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.540917][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.540917][ T10] netlink_unicast+0x449/0x710 [ 2902.540917][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.540917][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.540917][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.540917][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.540917][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.540917][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.540917][ T10] [ 2902.542703][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2902.542703][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.542703][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.542703][ T10] ipv6_find_idev+0x102/0x170 [ 2902.542703][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.542703][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.542703][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.542703][ T10] netlink_unicast+0x449/0x710 [ 2902.542703][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.542703][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.542703][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.542703][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.542703][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.542703][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.542703][ T10] [ 2902.544771][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2902.545068][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2902.545068][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.545068][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.545068][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.545068][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.545068][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.545068][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.545068][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.545068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.545068][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.545068][ T10] netlink_unicast+0x449/0x710 [ 2902.545068][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.545068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.545068][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.545068][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.545068][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.545068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.545068][ T10] [ 2902.547688][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2902.547688][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.547688][ T10] ipv6_find_idev+0x102/0x170 [ 2902.547688][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.547688][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.547688][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.547688][ T10] netlink_unicast+0x449/0x710 [ 2902.547688][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.547688][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.547688][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.547688][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.547688][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.547688][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.547688][ T10] [ 2902.549683][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2902.549683][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.549683][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.549683][ T10] ipv6_find_idev+0x102/0x170 [ 2902.549683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.549683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.549683][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.549683][ T10] netlink_unicast+0x449/0x710 [ 2902.549683][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.549683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.549683][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.549683][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.549683][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.549683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.549683][ T10] [ 2902.551836][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2902.552117][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2902.552117][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.552117][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.552117][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.552117][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.552117][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.552117][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.552117][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.552117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.552117][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.552117][ T10] netlink_unicast+0x449/0x710 [ 2902.552117][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.552117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.552117][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.552117][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.552117][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.552117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.552117][ T10] [ 2902.554514][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2902.554514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.554514][ T10] ipv6_find_idev+0x102/0x170 [ 2902.554514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.554514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.554514][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.554514][ T10] netlink_unicast+0x449/0x710 [ 2902.554514][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.554514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.554514][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.554514][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.554514][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.554514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.554514][ T10] [ 2902.556267][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2902.556267][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.556267][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.556267][ T10] ipv6_find_idev+0x102/0x170 [ 2902.556267][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.556267][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.556267][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.556267][ T10] netlink_unicast+0x449/0x710 [ 2902.556267][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.556267][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.556267][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.556267][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.556267][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.556267][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.556267][ T10] [ 2902.558775][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2902.559072][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2902.559072][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.559072][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.559072][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.559072][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.559072][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.559072][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.559072][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.559072][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.559072][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.559072][ T10] netlink_unicast+0x449/0x710 [ 2902.559072][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.559072][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.559072][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.559072][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.559072][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.559072][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.559072][ T10] [ 2902.561359][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2902.561359][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.561359][ T10] ipv6_find_idev+0x102/0x170 [ 2902.561359][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.561359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.561359][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.561359][ T10] netlink_unicast+0x449/0x710 [ 2902.561359][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.561359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.561359][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.561359][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.561359][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.561359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.561359][ T10] [ 2902.563292][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2902.563292][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.563292][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.563292][ T10] ipv6_find_idev+0x102/0x170 [ 2902.563292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.563292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.563292][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.563292][ T10] netlink_unicast+0x449/0x710 [ 2902.563292][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.563292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.563292][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.563292][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.563292][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.563292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.563292][ T10] [ 2902.565482][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2902.565843][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2902.565843][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.565843][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.565843][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.565843][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.565843][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.565843][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.565843][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.565843][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.565843][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.565843][ T10] netlink_unicast+0x449/0x710 [ 2902.565843][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.565843][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.565843][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.565843][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.565843][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.565843][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.565843][ T10] [ 2902.568174][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2902.568174][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.568174][ T10] ipv6_find_idev+0x102/0x170 [ 2902.568174][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.568174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.568174][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.568174][ T10] netlink_unicast+0x449/0x710 [ 2902.568174][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.568174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.568174][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.568174][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.568174][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.568174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.568174][ T10] [ 2902.570044][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2902.570044][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.570044][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.570044][ T10] ipv6_find_idev+0x102/0x170 [ 2902.570044][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.570044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.570044][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.570044][ T10] netlink_unicast+0x449/0x710 [ 2902.570044][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.570044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.570044][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.570044][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.570044][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.570044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.570044][ T10] [ 2902.572254][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2902.572551][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2902.572551][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.572551][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.572551][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.572551][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.572551][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.572551][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.572551][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.572551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.572551][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.572551][ T10] netlink_unicast+0x449/0x710 [ 2902.572551][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.572551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.572551][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.572551][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.572551][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.572551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.572551][ T10] [ 2902.575104][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2902.575104][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.575104][ T10] ipv6_find_idev+0x102/0x170 [ 2902.575104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.575104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.575104][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.575104][ T10] netlink_unicast+0x449/0x710 [ 2902.575104][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.575104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.575104][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.575104][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.575104][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.575104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.575104][ T10] [ 2902.577026][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2902.577026][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.577026][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.577026][ T10] ipv6_find_idev+0x102/0x170 [ 2902.577026][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.577026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.577026][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.577026][ T10] netlink_unicast+0x449/0x710 [ 2902.577026][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.577026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.577026][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.577026][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.577026][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.577026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.577026][ T10] [ 2902.579181][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2902.579547][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2902.579547][ T10] netdev_get_by_index+0x5e/0x80 [ 2902.579547][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2902.579547][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2902.579547][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2902.579547][ T10] ipv6_add_addr+0x411/0x2000 [ 2902.579547][ T10] inet6_addr_add+0x30e/0xa40 [ 2902.579547][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2902.579547][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.579547][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.579547][ T10] netlink_unicast+0x449/0x710 [ 2902.579547][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.579547][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.579547][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.579547][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.579547][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.579547][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.579547][ T10] [ 2902.582197][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2902.582197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2902.582197][ T10] ipv6_find_idev+0x102/0x170 [ 2902.582197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.582197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.582197][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.582197][ T10] netlink_unicast+0x449/0x710 [ 2902.582197][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.582197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.582197][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.582197][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.582197][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.582197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.582197][ T10] [ 2902.584156][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2902.584156][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2902.584156][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2902.584156][ T10] ipv6_find_idev+0x102/0x170 [ 2902.584156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2902.584156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2902.584156][ T10] netlink_rcv_skb+0x130/0x360 [ 2902.584156][ T10] netlink_unicast+0x449/0x710 [ 2902.584156][ T10] netlink_sendmsg+0x723/0xbe0 [ 2902.584156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2902.584156][ T10] ___sys_sendmsg+0xee/0x170 [ 2902.584156][ T10] __sys_sendmsg+0xcd/0x170 [ 2902.584156][ T10] do_syscall_64+0xc6/0x1e0 [ 2902.584156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2902.584156][ T10] [ 2912.691808][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2912.692180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2912.692180][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.692180][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.692180][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.692180][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.692180][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.692180][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.692180][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.692180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.692180][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.692180][ T10] netlink_unicast+0x449/0x710 [ 2912.692180][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.692180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.692180][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.692180][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.692180][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.692180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.692180][ T10] [ 2912.694591][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2912.694591][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.694591][ T10] ipv6_find_idev+0x102/0x170 [ 2912.694591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.694591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.694591][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.694591][ T10] netlink_unicast+0x449/0x710 [ 2912.694591][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.694591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.694591][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.694591][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.694591][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.694591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.694591][ T10] [ 2912.696414][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2912.696414][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.696414][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.696414][ T10] ipv6_find_idev+0x102/0x170 [ 2912.696414][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.696414][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.696414][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.696414][ T10] netlink_unicast+0x449/0x710 [ 2912.696414][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.696414][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.696414][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.696414][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.696414][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.696414][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.696414][ T10] [ 2912.698376][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2912.698678][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2912.698678][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.698678][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.698678][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.698678][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.698678][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.698678][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.698678][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.698678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.698678][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.698678][ T10] netlink_unicast+0x449/0x710 [ 2912.698678][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.698678][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.698678][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.698678][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.698678][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.698678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.698678][ T10] [ 2912.701063][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2912.701063][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.701063][ T10] ipv6_find_idev+0x102/0x170 [ 2912.701063][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.701063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.701063][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.701063][ T10] netlink_unicast+0x449/0x710 [ 2912.701063][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.701063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.701063][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.701063][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.701063][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.701063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.701063][ T10] [ 2912.702974][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2912.702974][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.702974][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.702974][ T10] ipv6_find_idev+0x102/0x170 [ 2912.702974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.702974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.702974][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.702974][ T10] netlink_unicast+0x449/0x710 [ 2912.702974][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.702974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.702974][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.702974][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.702974][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.702974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.702974][ T10] [ 2912.705015][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2912.705321][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2912.705321][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.705321][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.705321][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.705321][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.705321][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.705321][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.705321][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.705321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.705321][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.705321][ T10] netlink_unicast+0x449/0x710 [ 2912.705321][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.705321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.705321][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.705321][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.705321][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.705321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.705321][ T10] [ 2912.707672][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2912.707672][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.707672][ T10] ipv6_find_idev+0x102/0x170 [ 2912.707672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.707672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.707672][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.707672][ T10] netlink_unicast+0x449/0x710 [ 2912.707672][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.707672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.707672][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.707672][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.707672][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.707672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.707672][ T10] [ 2912.709428][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2912.709428][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.709428][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.709428][ T10] ipv6_find_idev+0x102/0x170 [ 2912.709428][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.709428][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.709428][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.709428][ T10] netlink_unicast+0x449/0x710 [ 2912.709428][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.709428][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.709428][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.709428][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.709428][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.709428][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.709428][ T10] [ 2912.711528][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2912.712315][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2912.712315][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.712315][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.712315][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.712315][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.712315][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.712315][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.712315][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.712315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.712315][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.712315][ T10] netlink_unicast+0x449/0x710 [ 2912.712315][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.712315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.712315][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.712315][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.712315][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.712315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.712315][ T10] [ 2912.714612][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2912.714612][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.714612][ T10] ipv6_find_idev+0x102/0x170 [ 2912.714612][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.714612][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.714612][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.714612][ T10] netlink_unicast+0x449/0x710 [ 2912.714612][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.714612][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.714612][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.714612][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.714612][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.714612][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.714612][ T10] [ 2912.716378][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2912.716378][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.716378][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.716378][ T10] ipv6_find_idev+0x102/0x170 [ 2912.716378][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.716378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.716378][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.716378][ T10] netlink_unicast+0x449/0x710 [ 2912.716378][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.716378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.716378][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.716378][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.716378][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.716378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.716378][ T10] [ 2912.718396][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2912.718767][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2912.718767][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.718767][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.718767][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.718767][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.718767][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.718767][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.718767][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.718767][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.718767][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.718767][ T10] netlink_unicast+0x449/0x710 [ 2912.718767][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.718767][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.718767][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.718767][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.718767][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.718767][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.718767][ T10] [ 2912.721077][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2912.721077][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.721077][ T10] ipv6_find_idev+0x102/0x170 [ 2912.721077][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.721077][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.721077][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.721077][ T10] netlink_unicast+0x449/0x710 [ 2912.721077][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.721077][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.721077][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.721077][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.721077][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.721077][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.721077][ T10] [ 2912.722833][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2912.722833][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.722833][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.722833][ T10] ipv6_find_idev+0x102/0x170 [ 2912.722833][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.722833][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.722833][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.722833][ T10] netlink_unicast+0x449/0x710 [ 2912.722833][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.722833][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.722833][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.722833][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.722833][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.722833][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.722833][ T10] [ 2912.724961][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2912.725261][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2912.725261][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.725261][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.725261][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.725261][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.725261][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.725261][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.725261][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.725261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.725261][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.725261][ T10] netlink_unicast+0x449/0x710 [ 2912.725261][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.725261][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.725261][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.725261][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.725261][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.725261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.725261][ T10] [ 2912.727811][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2912.727811][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.727811][ T10] ipv6_find_idev+0x102/0x170 [ 2912.727811][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.727811][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.727811][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.727811][ T10] netlink_unicast+0x449/0x710 [ 2912.727811][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.727811][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.727811][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.727811][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.727811][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.727811][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.727811][ T10] [ 2912.729764][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2912.729764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.729764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.729764][ T10] ipv6_find_idev+0x102/0x170 [ 2912.729764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.729764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.729764][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.729764][ T10] netlink_unicast+0x449/0x710 [ 2912.729764][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.729764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.729764][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.729764][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.729764][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.729764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.729764][ T10] [ 2912.732136][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2912.732431][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2912.732431][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.732431][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.732431][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.732431][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.732431][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.732431][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.732431][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.732431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.732431][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.732431][ T10] netlink_unicast+0x449/0x710 [ 2912.732431][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.732431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.732431][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.732431][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.732431][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.732431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.732431][ T10] [ 2912.734727][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2912.734727][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.734727][ T10] ipv6_find_idev+0x102/0x170 [ 2912.734727][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.734727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.734727][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.734727][ T10] netlink_unicast+0x449/0x710 [ 2912.734727][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.734727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.734727][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.734727][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.734727][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.734727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.734727][ T10] [ 2912.736707][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2912.736707][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.736707][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.736707][ T10] ipv6_find_idev+0x102/0x170 [ 2912.736707][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.736707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.736707][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.736707][ T10] netlink_unicast+0x449/0x710 [ 2912.736707][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.736707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.736707][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.736707][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.736707][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.736707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.736707][ T10] [ 2912.738923][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2912.739218][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2912.739218][ T10] netdev_get_by_index+0x5e/0x80 [ 2912.739218][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2912.739218][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2912.739218][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2912.739218][ T10] ipv6_add_addr+0x411/0x2000 [ 2912.739218][ T10] inet6_addr_add+0x30e/0xa40 [ 2912.739218][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2912.739218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.739218][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.739218][ T10] netlink_unicast+0x449/0x710 [ 2912.739218][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.739218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.739218][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.739218][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.739218][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.739218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.739218][ T10] [ 2912.741634][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2912.741634][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2912.741634][ T10] ipv6_find_idev+0x102/0x170 [ 2912.741634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.741634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.741634][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.741634][ T10] netlink_unicast+0x449/0x710 [ 2912.741634][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.741634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.741634][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.741634][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.741634][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.741634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.741634][ T10] [ 2912.743529][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2912.743529][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2912.743529][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2912.743529][ T10] ipv6_find_idev+0x102/0x170 [ 2912.743529][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2912.743529][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2912.743529][ T10] netlink_rcv_skb+0x130/0x360 [ 2912.743529][ T10] netlink_unicast+0x449/0x710 [ 2912.743529][ T10] netlink_sendmsg+0x723/0xbe0 [ 2912.743529][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2912.743529][ T10] ___sys_sendmsg+0xee/0x170 [ 2912.743529][ T10] __sys_sendmsg+0xcd/0x170 [ 2912.743529][ T10] do_syscall_64+0xc6/0x1e0 [ 2912.743529][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2912.743529][ T10] [ 2922.859817][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2922.860185][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2922.860185][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.860185][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.860185][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.860185][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.860185][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.860185][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.860185][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.860185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.860185][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.860185][ T10] netlink_unicast+0x449/0x710 [ 2922.860185][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.860185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.860185][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.860185][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.860185][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.860185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.860185][ T10] [ 2922.862397][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2922.862397][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.862397][ T10] ipv6_find_idev+0x102/0x170 [ 2922.862397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.862397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.862397][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.862397][ T10] netlink_unicast+0x449/0x710 [ 2922.862397][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.862397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.862397][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.862397][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.862397][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.862397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.862397][ T10] [ 2922.864132][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2922.864132][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.864132][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.864132][ T10] ipv6_find_idev+0x102/0x170 [ 2922.864132][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.864132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.864132][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.864132][ T10] netlink_unicast+0x449/0x710 [ 2922.864132][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.864132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.864132][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.864132][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.864132][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.864132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.864132][ T10] [ 2922.866010][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2922.866296][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2922.866296][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.866296][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.866296][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.866296][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.866296][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.866296][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.866296][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.866296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.866296][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.866296][ T10] netlink_unicast+0x449/0x710 [ 2922.866296][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.866296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.866296][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.866296][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.866296][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.866296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.866296][ T10] [ 2922.868545][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2922.868545][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.868545][ T10] ipv6_find_idev+0x102/0x170 [ 2922.868545][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.868545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.868545][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.868545][ T10] netlink_unicast+0x449/0x710 [ 2922.868545][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.868545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.868545][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.868545][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.868545][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.868545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.868545][ T10] [ 2922.870239][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2922.870239][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.870239][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.870239][ T10] ipv6_find_idev+0x102/0x170 [ 2922.870239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.870239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.870239][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.870239][ T10] netlink_unicast+0x449/0x710 [ 2922.870239][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.870239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.870239][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.870239][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.870239][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.870239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.870239][ T10] [ 2922.872120][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2922.872407][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2922.872407][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.872407][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.872407][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.872407][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.872407][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.872407][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.872407][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.872407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.872407][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.872407][ T10] netlink_unicast+0x449/0x710 [ 2922.872407][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.872407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.872407][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.872407][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.872407][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.872407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.872407][ T10] [ 2922.874576][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2922.874576][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.874576][ T10] ipv6_find_idev+0x102/0x170 [ 2922.874576][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.874576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.874576][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.874576][ T10] netlink_unicast+0x449/0x710 [ 2922.874576][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.874576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.874576][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.874576][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.874576][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.874576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.874576][ T10] [ 2922.876285][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2922.876285][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.876285][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.876285][ T10] ipv6_find_idev+0x102/0x170 [ 2922.876285][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.876285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.876285][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.876285][ T10] netlink_unicast+0x449/0x710 [ 2922.876285][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.876285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.876285][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.876285][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.876285][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.876285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.876285][ T10] [ 2922.878189][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2922.878478][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2922.878478][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.878478][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.878478][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.878478][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.878478][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.878478][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.878478][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.878478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.878478][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.878478][ T10] netlink_unicast+0x449/0x710 [ 2922.878478][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.878478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.878478][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.878478][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.878478][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.878478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.878478][ T10] [ 2922.880700][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2922.880700][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.880700][ T10] ipv6_find_idev+0x102/0x170 [ 2922.880700][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.880700][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.880700][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.880700][ T10] netlink_unicast+0x449/0x710 [ 2922.880700][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.880700][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.880700][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.880700][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.880700][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.880700][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.880700][ T10] [ 2922.882450][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2922.882450][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.882450][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.882450][ T10] ipv6_find_idev+0x102/0x170 [ 2922.882450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.882450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.882450][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.882450][ T10] netlink_unicast+0x449/0x710 [ 2922.882450][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.882450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.882450][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.882450][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.882450][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.882450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.882450][ T10] [ 2922.884723][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2922.885010][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2922.885010][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.885010][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.885010][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.885010][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.885010][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.885010][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.885010][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.885010][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.885010][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.885010][ T10] netlink_unicast+0x449/0x710 [ 2922.885010][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.885010][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.885010][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.885010][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.885010][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.885010][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.885010][ T10] [ 2922.887228][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2922.887228][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.887228][ T10] ipv6_find_idev+0x102/0x170 [ 2922.887228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.887228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.887228][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.887228][ T10] netlink_unicast+0x449/0x710 [ 2922.887228][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.887228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.887228][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.887228][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.887228][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.887228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.887228][ T10] [ 2922.888924][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2922.888924][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.888924][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.888924][ T10] ipv6_find_idev+0x102/0x170 [ 2922.888924][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.888924][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.888924][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.888924][ T10] netlink_unicast+0x449/0x710 [ 2922.888924][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.888924][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.888924][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.888924][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.888924][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.888924][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.888924][ T10] [ 2922.890950][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2922.891241][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2922.891241][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.891241][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.891241][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.891241][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.891241][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.891241][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.891241][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.891241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.891241][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.891241][ T10] netlink_unicast+0x449/0x710 [ 2922.891241][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.891241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.891241][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.891241][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.891241][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.891241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.891241][ T10] [ 2922.893550][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2922.893550][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.893550][ T10] ipv6_find_idev+0x102/0x170 [ 2922.893550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.893550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.893550][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.893550][ T10] netlink_unicast+0x449/0x710 [ 2922.893550][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.893550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.893550][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.893550][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.893550][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.893550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.893550][ T10] [ 2922.895323][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2922.895323][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.895323][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.895323][ T10] ipv6_find_idev+0x102/0x170 [ 2922.895323][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.895323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.895323][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.895323][ T10] netlink_unicast+0x449/0x710 [ 2922.895323][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.895323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.895323][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.895323][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.895323][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.895323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.895323][ T10] [ 2922.897385][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2922.897680][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2922.897680][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.897680][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.897680][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.897680][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.897680][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.897680][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.897680][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.897680][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.897680][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.897680][ T10] netlink_unicast+0x449/0x710 [ 2922.897680][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.897680][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.897680][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.897680][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.897680][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.897680][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.897680][ T10] [ 2922.899991][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2922.899991][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.899991][ T10] ipv6_find_idev+0x102/0x170 [ 2922.899991][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.899991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.899991][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.899991][ T10] netlink_unicast+0x449/0x710 [ 2922.899991][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.899991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.899991][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.899991][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.899991][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.899991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.899991][ T10] [ 2922.901762][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2922.901762][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.901762][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.901762][ T10] ipv6_find_idev+0x102/0x170 [ 2922.901762][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.901762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.901762][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.901762][ T10] netlink_unicast+0x449/0x710 [ 2922.901762][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.901762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.901762][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.901762][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.901762][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.901762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.901762][ T10] [ 2922.903738][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2922.904019][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2922.904019][ T10] netdev_get_by_index+0x5e/0x80 [ 2922.904019][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2922.904019][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2922.904019][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2922.904019][ T10] ipv6_add_addr+0x411/0x2000 [ 2922.904019][ T10] inet6_addr_add+0x30e/0xa40 [ 2922.904019][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2922.904019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.904019][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.904019][ T10] netlink_unicast+0x449/0x710 [ 2922.904019][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.904019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.904019][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.904019][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.904019][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.904019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.904019][ T10] [ 2922.906345][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2922.906345][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2922.906345][ T10] ipv6_find_idev+0x102/0x170 [ 2922.906345][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.906345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.906345][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.906345][ T10] netlink_unicast+0x449/0x710 [ 2922.906345][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.906345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.906345][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.906345][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.906345][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.906345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.906345][ T10] [ 2922.908108][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2922.908108][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2922.908108][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2922.908108][ T10] ipv6_find_idev+0x102/0x170 [ 2922.908108][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2922.908108][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2922.908108][ T10] netlink_rcv_skb+0x130/0x360 [ 2922.908108][ T10] netlink_unicast+0x449/0x710 [ 2922.908108][ T10] netlink_sendmsg+0x723/0xbe0 [ 2922.908108][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2922.908108][ T10] ___sys_sendmsg+0xee/0x170 [ 2922.908108][ T10] __sys_sendmsg+0xcd/0x170 [ 2922.908108][ T10] do_syscall_64+0xc6/0x1e0 [ 2922.908108][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2922.908108][ T10] [ 2933.019669][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2933.020023][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2933.020023][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.020023][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.020023][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.020023][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.020023][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.020023][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.020023][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.020023][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.020023][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.020023][ T10] netlink_unicast+0x449/0x710 [ 2933.020023][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.020023][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.020023][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.020023][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.020023][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.020023][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.020023][ T10] [ 2933.022249][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2933.022249][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.022249][ T10] ipv6_find_idev+0x102/0x170 [ 2933.022249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.022249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.022249][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.022249][ T10] netlink_unicast+0x449/0x710 [ 2933.022249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.022249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.022249][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.022249][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.022249][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.022249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.022249][ T10] [ 2933.023968][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2933.023968][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.023968][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.023968][ T10] ipv6_find_idev+0x102/0x170 [ 2933.023968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.023968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.023968][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.023968][ T10] netlink_unicast+0x449/0x710 [ 2933.023968][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.023968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.023968][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.023968][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.023968][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.023968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.023968][ T10] [ 2933.026408][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2933.026784][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2933.026784][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.026784][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.026784][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.026784][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.026784][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.026784][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.026784][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.026784][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.026784][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.026784][ T10] netlink_unicast+0x449/0x710 [ 2933.026784][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.026784][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.026784][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.026784][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.026784][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.026784][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.026784][ T10] [ 2933.029004][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2933.029004][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.029004][ T10] ipv6_find_idev+0x102/0x170 [ 2933.029004][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.029004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.029004][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.029004][ T10] netlink_unicast+0x449/0x710 [ 2933.029004][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.029004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.029004][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.029004][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.029004][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.029004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.029004][ T10] [ 2933.030731][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2933.030731][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.030731][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.030731][ T10] ipv6_find_idev+0x102/0x170 [ 2933.030731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.030731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.030731][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.030731][ T10] netlink_unicast+0x449/0x710 [ 2933.030731][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.030731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.030731][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.030731][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.030731][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.030731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.030731][ T10] [ 2933.032626][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2933.032982][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2933.032982][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.032982][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.032982][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.032982][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.032982][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.032982][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.032982][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.032982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.032982][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.032982][ T10] netlink_unicast+0x449/0x710 [ 2933.032982][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.032982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.032982][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.032982][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.032982][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.032982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.032982][ T10] [ 2933.035177][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2933.035177][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.035177][ T10] ipv6_find_idev+0x102/0x170 [ 2933.035177][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.035177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.035177][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.035177][ T10] netlink_unicast+0x449/0x710 [ 2933.035177][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.035177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.035177][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.035177][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.035177][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.035177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.035177][ T10] [ 2933.036900][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2933.036900][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.036900][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.036900][ T10] ipv6_find_idev+0x102/0x170 [ 2933.036900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.036900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.036900][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.036900][ T10] netlink_unicast+0x449/0x710 [ 2933.036900][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.036900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.036900][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.036900][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.036900][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.036900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.036900][ T10] [ 2933.038843][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2933.039148][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2933.039148][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.039148][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.039148][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.039148][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.039148][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.039148][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.039148][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.039148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.039148][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.039148][ T10] netlink_unicast+0x449/0x710 [ 2933.039148][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.039148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.039148][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.039148][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.039148][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.039148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.039148][ T10] [ 2933.041375][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2933.041375][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.041375][ T10] ipv6_find_idev+0x102/0x170 [ 2933.041375][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.041375][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.041375][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.041375][ T10] netlink_unicast+0x449/0x710 [ 2933.041375][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.041375][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.041375][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.041375][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.041375][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.041375][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.041375][ T10] [ 2933.043131][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2933.043131][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.043131][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.043131][ T10] ipv6_find_idev+0x102/0x170 [ 2933.043131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.043131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.043131][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.043131][ T10] netlink_unicast+0x449/0x710 [ 2933.043131][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.043131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.043131][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.043131][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.043131][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.043131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.043131][ T10] [ 2933.045243][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2933.045537][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2933.045537][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.045537][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.045537][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.045537][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.045537][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.045537][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.045537][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.045537][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.045537][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.045537][ T10] netlink_unicast+0x449/0x710 [ 2933.045537][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.045537][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.045537][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.045537][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.045537][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.045537][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.045537][ T10] [ 2933.047993][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2933.047993][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.047993][ T10] ipv6_find_idev+0x102/0x170 [ 2933.047993][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.047993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.047993][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.047993][ T10] netlink_unicast+0x449/0x710 [ 2933.047993][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.047993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.047993][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.047993][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.047993][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.047993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.047993][ T10] [ 2933.049863][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2933.049863][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.049863][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.049863][ T10] ipv6_find_idev+0x102/0x170 [ 2933.049863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.049863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.049863][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.049863][ T10] netlink_unicast+0x449/0x710 [ 2933.049863][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.049863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.049863][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.049863][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.049863][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.049863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.049863][ T10] [ 2933.052147][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2933.052465][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2933.052465][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.052465][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.052465][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.052465][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.052465][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.052465][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.052465][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.052465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.052465][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.052465][ T10] netlink_unicast+0x449/0x710 [ 2933.052465][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.052465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.052465][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.052465][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.052465][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.052465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.052465][ T10] [ 2933.054677][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2933.054677][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.054677][ T10] ipv6_find_idev+0x102/0x170 [ 2933.054677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.054677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.054677][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.054677][ T10] netlink_unicast+0x449/0x710 [ 2933.054677][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.054677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.054677][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.054677][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.054677][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.054677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.054677][ T10] [ 2933.056503][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2933.056503][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.056503][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.056503][ T10] ipv6_find_idev+0x102/0x170 [ 2933.056503][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.056503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.056503][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.056503][ T10] netlink_unicast+0x449/0x710 [ 2933.056503][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.056503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.056503][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.056503][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.056503][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.056503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.056503][ T10] [ 2933.058594][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2933.058941][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2933.058941][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.058941][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.058941][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.058941][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.058941][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.058941][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.058941][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.058941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.058941][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.058941][ T10] netlink_unicast+0x449/0x710 [ 2933.058941][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.058941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.058941][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.058941][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.058941][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.058941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.058941][ T10] [ 2933.061388][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2933.061388][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.061388][ T10] ipv6_find_idev+0x102/0x170 [ 2933.061388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.061388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.061388][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.061388][ T10] netlink_unicast+0x449/0x710 [ 2933.061388][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.061388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.061388][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.061388][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.061388][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.061388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.061388][ T10] [ 2933.063249][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2933.063249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.063249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.063249][ T10] ipv6_find_idev+0x102/0x170 [ 2933.063249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.063249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.063249][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.063249][ T10] netlink_unicast+0x449/0x710 [ 2933.063249][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.063249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.063249][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.063249][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.063249][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.063249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.063249][ T10] [ 2933.065522][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2933.065976][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2933.065976][ T10] netdev_get_by_index+0x5e/0x80 [ 2933.065976][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2933.065976][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2933.065976][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2933.065976][ T10] ipv6_add_addr+0x411/0x2000 [ 2933.065976][ T10] inet6_addr_add+0x30e/0xa40 [ 2933.065976][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2933.065976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.065976][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.065976][ T10] netlink_unicast+0x449/0x710 [ 2933.065976][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.065976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.065976][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.065976][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.065976][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.065976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.065976][ T10] [ 2933.068209][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2933.068209][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2933.068209][ T10] ipv6_find_idev+0x102/0x170 [ 2933.068209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.068209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.068209][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.068209][ T10] netlink_unicast+0x449/0x710 [ 2933.068209][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.068209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.068209][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.068209][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.068209][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.068209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.068209][ T10] [ 2933.069994][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2933.069994][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2933.069994][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2933.069994][ T10] ipv6_find_idev+0x102/0x170 [ 2933.069994][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2933.069994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2933.069994][ T10] netlink_rcv_skb+0x130/0x360 [ 2933.069994][ T10] netlink_unicast+0x449/0x710 [ 2933.069994][ T10] netlink_sendmsg+0x723/0xbe0 [ 2933.069994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2933.069994][ T10] ___sys_sendmsg+0xee/0x170 [ 2933.069994][ T10] __sys_sendmsg+0xcd/0x170 [ 2933.069994][ T10] do_syscall_64+0xc6/0x1e0 [ 2933.069994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2933.069994][ T10] [ 2943.163842][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2943.164307][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2943.164307][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.164307][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.164307][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.164307][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.164307][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.164307][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.164307][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.164307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.164307][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.164307][ T10] netlink_unicast+0x449/0x710 [ 2943.164307][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.164307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.164307][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.164307][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.164307][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.164307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.164307][ T10] [ 2943.166600][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2943.166600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.166600][ T10] ipv6_find_idev+0x102/0x170 [ 2943.166600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.166600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.166600][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.166600][ T10] netlink_unicast+0x449/0x710 [ 2943.166600][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.166600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.166600][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.166600][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.166600][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.166600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.166600][ T10] [ 2943.168334][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2943.168334][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.168334][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.168334][ T10] ipv6_find_idev+0x102/0x170 [ 2943.168334][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.168334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.168334][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.168334][ T10] netlink_unicast+0x449/0x710 [ 2943.168334][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.168334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.168334][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.168334][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.168334][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.168334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.168334][ T10] [ 2943.170185][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2943.170501][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2943.170501][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.170501][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.170501][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.170501][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.170501][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.170501][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.170501][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.170501][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.170501][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.170501][ T10] netlink_unicast+0x449/0x710 [ 2943.170501][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.170501][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.170501][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.170501][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.170501][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.170501][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.170501][ T10] [ 2943.172736][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2943.172736][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.172736][ T10] ipv6_find_idev+0x102/0x170 [ 2943.172736][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.172736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.172736][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.172736][ T10] netlink_unicast+0x449/0x710 [ 2943.172736][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.172736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.172736][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.172736][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.172736][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.172736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.172736][ T10] [ 2943.174446][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2943.174446][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.174446][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.174446][ T10] ipv6_find_idev+0x102/0x170 [ 2943.174446][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.174446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.174446][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.174446][ T10] netlink_unicast+0x449/0x710 [ 2943.174446][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.174446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.174446][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.174446][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.174446][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.174446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.174446][ T10] [ 2943.176326][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2943.176615][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2943.176615][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.176615][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.176615][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.176615][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.176615][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.176615][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.176615][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.176615][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.176615][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.176615][ T10] netlink_unicast+0x449/0x710 [ 2943.176615][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.176615][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.176615][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.176615][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.176615][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.176615][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.176615][ T10] [ 2943.178805][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2943.178805][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.178805][ T10] ipv6_find_idev+0x102/0x170 [ 2943.178805][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.178805][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.178805][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.178805][ T10] netlink_unicast+0x449/0x710 [ 2943.178805][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.178805][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.178805][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.178805][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.178805][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.178805][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.178805][ T10] [ 2943.180473][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2943.180473][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.180473][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.180473][ T10] ipv6_find_idev+0x102/0x170 [ 2943.180473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.180473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.180473][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.180473][ T10] netlink_unicast+0x449/0x710 [ 2943.180473][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.180473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.180473][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.180473][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.180473][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.180473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.180473][ T10] [ 2943.182292][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2943.182574][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2943.182574][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.182574][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.182574][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.182574][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.182574][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.182574][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.182574][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.182574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.182574][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.182574][ T10] netlink_unicast+0x449/0x710 [ 2943.182574][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.182574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.182574][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.182574][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.182574][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.182574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.182574][ T10] [ 2943.184769][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2943.184769][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.184769][ T10] ipv6_find_idev+0x102/0x170 [ 2943.184769][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.184769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.184769][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.184769][ T10] netlink_unicast+0x449/0x710 [ 2943.184769][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.184769][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.184769][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.184769][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.184769][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.184769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.184769][ T10] [ 2943.186479][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2943.186479][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.186479][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.186479][ T10] ipv6_find_idev+0x102/0x170 [ 2943.186479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.186479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.186479][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.186479][ T10] netlink_unicast+0x449/0x710 [ 2943.186479][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.186479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.186479][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.186479][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.186479][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.186479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.186479][ T10] [ 2943.188800][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2943.189089][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2943.189089][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.189089][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.189089][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.189089][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.189089][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.189089][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.189089][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.189089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.189089][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.189089][ T10] netlink_unicast+0x449/0x710 [ 2943.189089][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.189089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.189089][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.189089][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.189089][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.189089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.189089][ T10] [ 2943.191290][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2943.191290][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.191290][ T10] ipv6_find_idev+0x102/0x170 [ 2943.191290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.191290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.191290][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.191290][ T10] netlink_unicast+0x449/0x710 [ 2943.191290][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.191290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.191290][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.191290][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.191290][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.191290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.191290][ T10] [ 2943.192957][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2943.192957][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.192957][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.192957][ T10] ipv6_find_idev+0x102/0x170 [ 2943.192957][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.192957][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.192957][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.192957][ T10] netlink_unicast+0x449/0x710 [ 2943.192957][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.192957][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.192957][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.192957][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.192957][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.192957][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.192957][ T10] [ 2943.194834][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2943.195121][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2943.195121][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.195121][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.195121][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.195121][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.195121][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.195121][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.195121][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.195121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.195121][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.195121][ T10] netlink_unicast+0x449/0x710 [ 2943.195121][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.195121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.195121][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.195121][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.195121][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.195121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.195121][ T10] [ 2943.197474][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2943.197474][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.197474][ T10] ipv6_find_idev+0x102/0x170 [ 2943.197474][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.197474][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.197474][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.197474][ T10] netlink_unicast+0x449/0x710 [ 2943.197474][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.197474][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.197474][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.197474][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.197474][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.197474][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.197474][ T10] [ 2943.199371][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2943.199371][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.199371][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.199371][ T10] ipv6_find_idev+0x102/0x170 [ 2943.199371][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.199371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.199371][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.199371][ T10] netlink_unicast+0x449/0x710 [ 2943.199371][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.199371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.199371][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.199371][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.199371][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.199371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.199371][ T10] [ 2943.201444][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2943.201786][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2943.201786][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.201786][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.201786][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.201786][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.201786][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.201786][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.201786][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.201786][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.201786][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.201786][ T10] netlink_unicast+0x449/0x710 [ 2943.201786][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.201786][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.201786][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.201786][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.201786][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.201786][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.201786][ T10] [ 2943.204156][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2943.204156][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.204156][ T10] ipv6_find_idev+0x102/0x170 [ 2943.204156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.204156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.204156][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.204156][ T10] netlink_unicast+0x449/0x710 [ 2943.204156][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.204156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.204156][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.204156][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.204156][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.204156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.204156][ T10] [ 2943.206015][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2943.206015][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.206015][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.206015][ T10] ipv6_find_idev+0x102/0x170 [ 2943.206015][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.206015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.206015][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.206015][ T10] netlink_unicast+0x449/0x710 [ 2943.206015][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.206015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.206015][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.206015][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.206015][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.206015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.206015][ T10] [ 2943.208202][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2943.208492][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2943.208492][ T10] netdev_get_by_index+0x5e/0x80 [ 2943.208492][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2943.208492][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2943.208492][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2943.208492][ T10] ipv6_add_addr+0x411/0x2000 [ 2943.208492][ T10] inet6_addr_add+0x30e/0xa40 [ 2943.208492][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2943.208492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.208492][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.208492][ T10] netlink_unicast+0x449/0x710 [ 2943.208492][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.208492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.208492][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.208492][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.208492][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.208492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.208492][ T10] [ 2943.210890][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2943.210890][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2943.210890][ T10] ipv6_find_idev+0x102/0x170 [ 2943.210890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.210890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.210890][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.210890][ T10] netlink_unicast+0x449/0x710 [ 2943.210890][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.210890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.210890][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.210890][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.210890][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.210890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.210890][ T10] [ 2943.212733][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2943.212733][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2943.212733][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2943.212733][ T10] ipv6_find_idev+0x102/0x170 [ 2943.212733][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2943.212733][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2943.212733][ T10] netlink_rcv_skb+0x130/0x360 [ 2943.212733][ T10] netlink_unicast+0x449/0x710 [ 2943.212733][ T10] netlink_sendmsg+0x723/0xbe0 [ 2943.212733][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2943.212733][ T10] ___sys_sendmsg+0xee/0x170 [ 2943.212733][ T10] __sys_sendmsg+0xcd/0x170 [ 2943.212733][ T10] do_syscall_64+0xc6/0x1e0 [ 2943.212733][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2943.212733][ T10] [ 2953.307824][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2953.308166][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2953.308166][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.308166][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.308166][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.308166][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.308166][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.308166][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.308166][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.308166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.308166][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.308166][ T10] netlink_unicast+0x449/0x710 [ 2953.308166][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.308166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.308166][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.308166][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.308166][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.308166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.308166][ T10] [ 2953.310492][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2953.310492][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.310492][ T10] ipv6_find_idev+0x102/0x170 [ 2953.310492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.310492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.310492][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.310492][ T10] netlink_unicast+0x449/0x710 [ 2953.310492][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.310492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.310492][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.310492][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.310492][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.310492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.310492][ T10] [ 2953.312233][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2953.312233][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.312233][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.312233][ T10] ipv6_find_idev+0x102/0x170 [ 2953.312233][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.312233][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.312233][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.312233][ T10] netlink_unicast+0x449/0x710 [ 2953.312233][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.312233][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.312233][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.312233][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.312233][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.312233][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.312233][ T10] [ 2953.314094][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2953.314413][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2953.314413][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.314413][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.314413][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.314413][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.314413][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.314413][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.314413][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.314413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.314413][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.314413][ T10] netlink_unicast+0x449/0x710 [ 2953.314413][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.314413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.314413][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.314413][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.314413][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.314413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.314413][ T10] [ 2953.316673][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2953.316673][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.316673][ T10] ipv6_find_idev+0x102/0x170 [ 2953.316673][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.316673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.316673][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.316673][ T10] netlink_unicast+0x449/0x710 [ 2953.316673][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.316673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.316673][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.316673][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.316673][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.316673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.316673][ T10] [ 2953.318409][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2953.318409][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.318409][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.318409][ T10] ipv6_find_idev+0x102/0x170 [ 2953.318409][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.318409][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.318409][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.318409][ T10] netlink_unicast+0x449/0x710 [ 2953.318409][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.318409][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.318409][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.318409][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.318409][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.318409][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.318409][ T10] [ 2953.320295][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2953.320583][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2953.320583][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.320583][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.320583][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.320583][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.320583][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.320583][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.320583][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.320583][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.320583][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.320583][ T10] netlink_unicast+0x449/0x710 [ 2953.320583][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.320583][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.320583][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.320583][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.320583][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.320583][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.320583][ T10] [ 2953.322821][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2953.322821][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.322821][ T10] ipv6_find_idev+0x102/0x170 [ 2953.322821][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.322821][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.322821][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.322821][ T10] netlink_unicast+0x449/0x710 [ 2953.322821][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.322821][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.322821][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.322821][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.322821][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.322821][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.322821][ T10] [ 2953.324520][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2953.324520][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.324520][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.324520][ T10] ipv6_find_idev+0x102/0x170 [ 2953.324520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.324520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.324520][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.324520][ T10] netlink_unicast+0x449/0x710 [ 2953.324520][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.324520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.324520][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.324520][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.324520][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.324520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.324520][ T10] [ 2953.326424][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2953.326725][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2953.326725][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.326725][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.326725][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.326725][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.326725][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.326725][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.326725][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.326725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.326725][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.326725][ T10] netlink_unicast+0x449/0x710 [ 2953.326725][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.326725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.326725][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.326725][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.326725][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.326725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.326725][ T10] [ 2953.329011][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2953.329011][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.329011][ T10] ipv6_find_idev+0x102/0x170 [ 2953.329011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.329011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.329011][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.329011][ T10] netlink_unicast+0x449/0x710 [ 2953.329011][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.329011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.329011][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.329011][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.329011][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.329011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.329011][ T10] [ 2953.330916][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2953.330916][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.330916][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.330916][ T10] ipv6_find_idev+0x102/0x170 [ 2953.330916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.330916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.330916][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.330916][ T10] netlink_unicast+0x449/0x710 [ 2953.330916][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.330916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.330916][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.330916][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.330916][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.330916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.330916][ T10] [ 2953.333004][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2953.333293][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2953.333293][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.333293][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.333293][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.333293][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.333293][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.333293][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.333293][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.333293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.333293][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.333293][ T10] netlink_unicast+0x449/0x710 [ 2953.333293][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.333293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.333293][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.333293][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.333293][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.333293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.333293][ T10] [ 2953.335583][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2953.335583][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.335583][ T10] ipv6_find_idev+0x102/0x170 [ 2953.335583][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.335583][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.335583][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.335583][ T10] netlink_unicast+0x449/0x710 [ 2953.335583][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.335583][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.335583][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.335583][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.335583][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.335583][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.335583][ T10] [ 2953.337393][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2953.337393][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.337393][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.337393][ T10] ipv6_find_idev+0x102/0x170 [ 2953.337393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.337393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.337393][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.337393][ T10] netlink_unicast+0x449/0x710 [ 2953.337393][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.337393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.337393][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.337393][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.337393][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.337393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.337393][ T10] [ 2953.340037][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2953.340339][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2953.340339][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.340339][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.340339][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.340339][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.340339][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.340339][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.340339][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.340339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.340339][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.340339][ T10] netlink_unicast+0x449/0x710 [ 2953.340339][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.340339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.340339][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.340339][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.340339][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.340339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.340339][ T10] [ 2953.342542][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2953.342542][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.342542][ T10] ipv6_find_idev+0x102/0x170 [ 2953.342542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.342542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.342542][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.342542][ T10] netlink_unicast+0x449/0x710 [ 2953.342542][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.342542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.342542][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.342542][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.342542][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.342542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.342542][ T10] [ 2953.344369][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2953.344369][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.344369][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.344369][ T10] ipv6_find_idev+0x102/0x170 [ 2953.344369][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.344369][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.344369][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.344369][ T10] netlink_unicast+0x449/0x710 [ 2953.344369][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.344369][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.344369][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.344369][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.344369][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.344369][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.344369][ T10] [ 2953.346429][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2953.346779][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2953.346779][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.346779][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.346779][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.346779][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.346779][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.346779][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.346779][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.346779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.346779][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.346779][ T10] netlink_unicast+0x449/0x710 [ 2953.346779][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.346779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.346779][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.346779][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.346779][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.346779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.346779][ T10] [ 2953.349243][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2953.349243][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.349243][ T10] ipv6_find_idev+0x102/0x170 [ 2953.349243][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.349243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.349243][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.349243][ T10] netlink_unicast+0x449/0x710 [ 2953.349243][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.349243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.349243][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.349243][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.349243][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.349243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.349243][ T10] [ 2953.351284][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2953.351284][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.351284][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.351284][ T10] ipv6_find_idev+0x102/0x170 [ 2953.351284][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.351284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.351284][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.351284][ T10] netlink_unicast+0x449/0x710 [ 2953.351284][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.351284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.351284][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.351284][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.351284][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.351284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.351284][ T10] [ 2953.353441][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2953.353868][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2953.353868][ T10] netdev_get_by_index+0x5e/0x80 [ 2953.353868][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2953.353868][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2953.353868][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2953.353868][ T10] ipv6_add_addr+0x411/0x2000 [ 2953.353868][ T10] inet6_addr_add+0x30e/0xa40 [ 2953.353868][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2953.353868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.353868][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.353868][ T10] netlink_unicast+0x449/0x710 [ 2953.353868][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.353868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.353868][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.353868][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.353868][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.353868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.353868][ T10] [ 2953.356335][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2953.356335][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2953.356335][ T10] ipv6_find_idev+0x102/0x170 [ 2953.356335][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.356335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.356335][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.356335][ T10] netlink_unicast+0x449/0x710 [ 2953.356335][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.356335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.356335][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.356335][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.356335][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.356335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.356335][ T10] [ 2953.358258][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2953.358258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2953.358258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2953.358258][ T10] ipv6_find_idev+0x102/0x170 [ 2953.358258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2953.358258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2953.358258][ T10] netlink_rcv_skb+0x130/0x360 [ 2953.358258][ T10] netlink_unicast+0x449/0x710 [ 2953.358258][ T10] netlink_sendmsg+0x723/0xbe0 [ 2953.358258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2953.358258][ T10] ___sys_sendmsg+0xee/0x170 [ 2953.358258][ T10] __sys_sendmsg+0xcd/0x170 [ 2953.358258][ T10] do_syscall_64+0xc6/0x1e0 [ 2953.358258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2953.358258][ T10] [ 2963.523669][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2963.524021][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2963.524021][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.524021][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.524021][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.524021][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.524021][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.524021][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.524021][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.524021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.524021][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.524021][ T10] netlink_unicast+0x449/0x710 [ 2963.524021][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.524021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.524021][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.524021][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.524021][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.524021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.524021][ T10] [ 2963.526288][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2963.526288][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.526288][ T10] ipv6_find_idev+0x102/0x170 [ 2963.526288][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.526288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.526288][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.526288][ T10] netlink_unicast+0x449/0x710 [ 2963.526288][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.526288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.526288][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.526288][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.526288][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.526288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.526288][ T10] [ 2963.528012][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2963.528012][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.528012][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.528012][ T10] ipv6_find_idev+0x102/0x170 [ 2963.528012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.528012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.528012][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.528012][ T10] netlink_unicast+0x449/0x710 [ 2963.528012][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.528012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.528012][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.528012][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.528012][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.528012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.528012][ T10] [ 2963.530069][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2963.530360][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2963.530360][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.530360][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.530360][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.530360][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.530360][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.530360][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.530360][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.530360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.530360][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.530360][ T10] netlink_unicast+0x449/0x710 [ 2963.530360][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.530360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.530360][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.530360][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.530360][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.530360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.530360][ T10] [ 2963.532612][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2963.532612][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.532612][ T10] ipv6_find_idev+0x102/0x170 [ 2963.532612][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.532612][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.532612][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.532612][ T10] netlink_unicast+0x449/0x710 [ 2963.532612][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.532612][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.532612][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.532612][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.532612][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.532612][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.532612][ T10] [ 2963.534311][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2963.534311][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.534311][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.534311][ T10] ipv6_find_idev+0x102/0x170 [ 2963.534311][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.534311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.534311][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.534311][ T10] netlink_unicast+0x449/0x710 [ 2963.534311][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.534311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.534311][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.534311][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.534311][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.534311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.534311][ T10] [ 2963.536184][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2963.536485][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2963.536485][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.536485][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.536485][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.536485][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.536485][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.536485][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.536485][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.536485][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.536485][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.536485][ T10] netlink_unicast+0x449/0x710 [ 2963.536485][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.536485][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.536485][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.536485][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.536485][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.536485][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.536485][ T10] [ 2963.538727][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2963.538727][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.538727][ T10] ipv6_find_idev+0x102/0x170 [ 2963.538727][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.538727][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.538727][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.538727][ T10] netlink_unicast+0x449/0x710 [ 2963.538727][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.538727][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.538727][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.538727][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.538727][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.538727][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.538727][ T10] [ 2963.540431][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2963.540431][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.540431][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.540431][ T10] ipv6_find_idev+0x102/0x170 [ 2963.540431][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.540431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.540431][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.540431][ T10] netlink_unicast+0x449/0x710 [ 2963.540431][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.540431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.540431][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.540431][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.540431][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.540431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.540431][ T10] [ 2963.542360][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2963.542641][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2963.542641][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.542641][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.542641][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.542641][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.542641][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.542641][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.542641][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.542641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.542641][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.542641][ T10] netlink_unicast+0x449/0x710 [ 2963.542641][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.542641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.542641][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.542641][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.542641][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.542641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.542641][ T10] [ 2963.544879][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2963.544879][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.544879][ T10] ipv6_find_idev+0x102/0x170 [ 2963.544879][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.544879][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.544879][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.544879][ T10] netlink_unicast+0x449/0x710 [ 2963.544879][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.544879][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.544879][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.544879][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.544879][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.544879][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.544879][ T10] [ 2963.546647][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2963.546647][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.546647][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.546647][ T10] ipv6_find_idev+0x102/0x170 [ 2963.546647][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.546647][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.546647][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.546647][ T10] netlink_unicast+0x449/0x710 [ 2963.546647][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.546647][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.546647][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.546647][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.546647][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.546647][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.546647][ T10] [ 2963.548664][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2963.549015][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2963.549015][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.549015][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.549015][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.549015][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.549015][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.549015][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.549015][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.549015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.549015][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.549015][ T10] netlink_unicast+0x449/0x710 [ 2963.549015][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.549015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.549015][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.549015][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.549015][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.549015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.549015][ T10] [ 2963.551433][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2963.551433][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.551433][ T10] ipv6_find_idev+0x102/0x170 [ 2963.551433][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.551433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.551433][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.551433][ T10] netlink_unicast+0x449/0x710 [ 2963.551433][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.551433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.551433][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.551433][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.551433][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.551433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.551433][ T10] [ 2963.553271][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2963.553271][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.553271][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.553271][ T10] ipv6_find_idev+0x102/0x170 [ 2963.553271][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.553271][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.553271][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.553271][ T10] netlink_unicast+0x449/0x710 [ 2963.553271][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.553271][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.553271][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.553271][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.553271][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.553271][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.553271][ T10] [ 2963.555875][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2963.556196][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2963.556196][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.556196][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.556196][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.556196][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.556196][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.556196][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.556196][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.556196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.556196][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.556196][ T10] netlink_unicast+0x449/0x710 [ 2963.556196][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.556196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.556196][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.556196][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.556196][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.556196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.556196][ T10] [ 2963.558452][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2963.558452][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.558452][ T10] ipv6_find_idev+0x102/0x170 [ 2963.558452][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.558452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.558452][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.558452][ T10] netlink_unicast+0x449/0x710 [ 2963.558452][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.558452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.558452][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.558452][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.558452][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.558452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.558452][ T10] [ 2963.560428][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2963.560428][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.560428][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.560428][ T10] ipv6_find_idev+0x102/0x170 [ 2963.560428][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.560428][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.560428][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.560428][ T10] netlink_unicast+0x449/0x710 [ 2963.560428][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.560428][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.560428][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.560428][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.560428][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.560428][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.560428][ T10] [ 2963.562445][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2963.562785][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2963.562785][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.562785][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.562785][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.562785][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.562785][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.562785][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.562785][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.562785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.562785][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.562785][ T10] netlink_unicast+0x449/0x710 [ 2963.562785][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.562785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.562785][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.562785][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.562785][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.562785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.562785][ T10] [ 2963.564991][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2963.564991][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.564991][ T10] ipv6_find_idev+0x102/0x170 [ 2963.564991][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.564991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.564991][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.564991][ T10] netlink_unicast+0x449/0x710 [ 2963.564991][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.564991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.564991][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.564991][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.564991][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.564991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.564991][ T10] [ 2963.566897][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2963.566897][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.566897][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.566897][ T10] ipv6_find_idev+0x102/0x170 [ 2963.566897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.566897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.566897][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.566897][ T10] netlink_unicast+0x449/0x710 [ 2963.566897][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.566897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.566897][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.566897][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.566897][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.566897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.566897][ T10] [ 2963.568988][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2963.569284][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2963.569284][ T10] netdev_get_by_index+0x5e/0x80 [ 2963.569284][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2963.569284][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2963.569284][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2963.569284][ T10] ipv6_add_addr+0x411/0x2000 [ 2963.569284][ T10] inet6_addr_add+0x30e/0xa40 [ 2963.569284][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2963.569284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.569284][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.569284][ T10] netlink_unicast+0x449/0x710 [ 2963.569284][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.569284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.569284][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.569284][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.569284][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.569284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.569284][ T10] [ 2963.571562][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2963.571562][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2963.571562][ T10] ipv6_find_idev+0x102/0x170 [ 2963.571562][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.571562][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.571562][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.571562][ T10] netlink_unicast+0x449/0x710 [ 2963.571562][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.571562][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.571562][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.571562][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.571562][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.571562][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.571562][ T10] [ 2963.573270][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2963.573270][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2963.573270][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2963.573270][ T10] ipv6_find_idev+0x102/0x170 [ 2963.573270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2963.573270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2963.573270][ T10] netlink_rcv_skb+0x130/0x360 [ 2963.573270][ T10] netlink_unicast+0x449/0x710 [ 2963.573270][ T10] netlink_sendmsg+0x723/0xbe0 [ 2963.573270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2963.573270][ T10] ___sys_sendmsg+0xee/0x170 [ 2963.573270][ T10] __sys_sendmsg+0xcd/0x170 [ 2963.573270][ T10] do_syscall_64+0xc6/0x1e0 [ 2963.573270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2963.573270][ T10] [ 2973.731751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2973.732124][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2973.732124][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.732124][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.732124][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.732124][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.732124][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.732124][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.732124][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.732124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.732124][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.732124][ T10] netlink_unicast+0x449/0x710 [ 2973.732124][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.732124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.732124][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.732124][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.732124][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.732124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.732124][ T10] [ 2973.734446][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2973.734446][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.734446][ T10] ipv6_find_idev+0x102/0x170 [ 2973.734446][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.734446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.734446][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.734446][ T10] netlink_unicast+0x449/0x710 [ 2973.734446][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.734446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.734446][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.734446][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.734446][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.734446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.734446][ T10] [ 2973.736284][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2973.736284][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.736284][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.736284][ T10] ipv6_find_idev+0x102/0x170 [ 2973.736284][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.736284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.736284][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.736284][ T10] netlink_unicast+0x449/0x710 [ 2973.736284][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.736284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.736284][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.736284][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.736284][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.736284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.736284][ T10] [ 2973.738276][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2973.738614][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2973.738614][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.738614][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.738614][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.738614][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.738614][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.738614][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.738614][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.738614][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.738614][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.738614][ T10] netlink_unicast+0x449/0x710 [ 2973.738614][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.738614][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.738614][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.738614][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.738614][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.738614][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.738614][ T10] [ 2973.740914][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2973.740914][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.740914][ T10] ipv6_find_idev+0x102/0x170 [ 2973.740914][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.740914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.740914][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.740914][ T10] netlink_unicast+0x449/0x710 [ 2973.740914][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.740914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.740914][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.740914][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.740914][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.740914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.740914][ T10] [ 2973.742658][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2973.742658][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.742658][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.742658][ T10] ipv6_find_idev+0x102/0x170 [ 2973.742658][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.742658][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.742658][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.742658][ T10] netlink_unicast+0x449/0x710 [ 2973.742658][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.742658][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.742658][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.742658][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.742658][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.742658][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.742658][ T10] [ 2973.744565][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2973.744878][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2973.744878][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.744878][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.744878][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.744878][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.744878][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.744878][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.744878][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.744878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.744878][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.744878][ T10] netlink_unicast+0x449/0x710 [ 2973.744878][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.744878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.744878][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.744878][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.744878][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.744878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.744878][ T10] [ 2973.747239][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2973.747239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.747239][ T10] ipv6_find_idev+0x102/0x170 [ 2973.747239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.747239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.747239][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.747239][ T10] netlink_unicast+0x449/0x710 [ 2973.747239][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.747239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.747239][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.747239][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.747239][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.747239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.747239][ T10] [ 2973.749079][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2973.749079][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.749079][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.749079][ T10] ipv6_find_idev+0x102/0x170 [ 2973.749079][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.749079][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.749079][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.749079][ T10] netlink_unicast+0x449/0x710 [ 2973.749079][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.749079][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.749079][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.749079][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.749079][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.749079][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.749079][ T10] [ 2973.751004][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2973.751315][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2973.751315][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.751315][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.751315][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.751315][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.751315][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.751315][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.751315][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.751315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.751315][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.751315][ T10] netlink_unicast+0x449/0x710 [ 2973.751315][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.751315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.751315][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.751315][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.751315][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.751315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.751315][ T10] [ 2973.753748][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2973.753748][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.753748][ T10] ipv6_find_idev+0x102/0x170 [ 2973.753748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.753748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.753748][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.753748][ T10] netlink_unicast+0x449/0x710 [ 2973.753748][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.753748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.753748][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.753748][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.753748][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.753748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.753748][ T10] [ 2973.755763][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2973.755763][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.755763][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.755763][ T10] ipv6_find_idev+0x102/0x170 [ 2973.755763][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.755763][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.755763][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.755763][ T10] netlink_unicast+0x449/0x710 [ 2973.755763][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.755763][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.755763][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.755763][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.755763][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.755763][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.755763][ T10] [ 2973.758337][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2973.758993][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2973.758993][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.758993][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.758993][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.758993][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.758993][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.758993][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.758993][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.758993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.758993][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.758993][ T10] netlink_unicast+0x449/0x710 [ 2973.758993][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.758993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.758993][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.758993][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.758993][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.758993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.758993][ T10] [ 2973.761231][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2973.761231][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.761231][ T10] ipv6_find_idev+0x102/0x170 [ 2973.761231][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.761231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.761231][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.761231][ T10] netlink_unicast+0x449/0x710 [ 2973.761231][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.761231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.761231][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.761231][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.761231][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.761231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.761231][ T10] [ 2973.763056][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2973.763056][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.763056][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.763056][ T10] ipv6_find_idev+0x102/0x170 [ 2973.763056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.763056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.763056][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.763056][ T10] netlink_unicast+0x449/0x710 [ 2973.763056][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.763056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.763056][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.763056][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.763056][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.763056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.763056][ T10] [ 2973.765211][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2973.765578][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2973.765578][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.765578][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.765578][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.765578][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.765578][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.765578][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.765578][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.765578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.765578][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.765578][ T10] netlink_unicast+0x449/0x710 [ 2973.765578][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.765578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.765578][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.765578][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.765578][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.765578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.765578][ T10] [ 2973.767846][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2973.767846][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.767846][ T10] ipv6_find_idev+0x102/0x170 [ 2973.767846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.767846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.767846][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.767846][ T10] netlink_unicast+0x449/0x710 [ 2973.767846][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.767846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.767846][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.767846][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.767846][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.767846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.767846][ T10] [ 2973.769712][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2973.769712][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.769712][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.769712][ T10] ipv6_find_idev+0x102/0x170 [ 2973.769712][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.769712][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.769712][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.769712][ T10] netlink_unicast+0x449/0x710 [ 2973.769712][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.769712][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.769712][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.769712][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.769712][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.769712][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.769712][ T10] [ 2973.771825][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2973.772170][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2973.772170][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.772170][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.772170][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.772170][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.772170][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.772170][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.772170][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.772170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.772170][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.772170][ T10] netlink_unicast+0x449/0x710 [ 2973.772170][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.772170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.772170][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.772170][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.772170][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.772170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.772170][ T10] [ 2973.774584][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2973.774584][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.774584][ T10] ipv6_find_idev+0x102/0x170 [ 2973.774584][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.774584][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.774584][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.774584][ T10] netlink_unicast+0x449/0x710 [ 2973.774584][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.774584][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.774584][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.774584][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.774584][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.774584][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.774584][ T10] [ 2973.776569][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2973.776569][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.776569][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.776569][ T10] ipv6_find_idev+0x102/0x170 [ 2973.776569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.776569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.776569][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.776569][ T10] netlink_unicast+0x449/0x710 [ 2973.776569][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.776569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.776569][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.776569][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.776569][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.776569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.776569][ T10] [ 2973.778760][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2973.779167][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2973.779167][ T10] netdev_get_by_index+0x5e/0x80 [ 2973.779167][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2973.779167][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2973.779167][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2973.779167][ T10] ipv6_add_addr+0x411/0x2000 [ 2973.779167][ T10] inet6_addr_add+0x30e/0xa40 [ 2973.779167][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2973.779167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.779167][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.779167][ T10] netlink_unicast+0x449/0x710 [ 2973.779167][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.779167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.779167][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.779167][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.779167][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.779167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.779167][ T10] [ 2973.781638][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2973.781638][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2973.781638][ T10] ipv6_find_idev+0x102/0x170 [ 2973.781638][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.781638][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.781638][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.781638][ T10] netlink_unicast+0x449/0x710 [ 2973.781638][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.781638][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.781638][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.781638][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.781638][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.781638][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.781638][ T10] [ 2973.783616][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2973.783616][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2973.783616][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2973.783616][ T10] ipv6_find_idev+0x102/0x170 [ 2973.783616][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2973.783616][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2973.783616][ T10] netlink_rcv_skb+0x130/0x360 [ 2973.783616][ T10] netlink_unicast+0x449/0x710 [ 2973.783616][ T10] netlink_sendmsg+0x723/0xbe0 [ 2973.783616][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2973.783616][ T10] ___sys_sendmsg+0xee/0x170 [ 2973.783616][ T10] __sys_sendmsg+0xcd/0x170 [ 2973.783616][ T10] do_syscall_64+0xc6/0x1e0 [ 2973.783616][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2973.783616][ T10] [ 2983.907776][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2983.908161][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2983.908161][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.908161][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.908161][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.908161][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.908161][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.908161][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.908161][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.908161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.908161][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.908161][ T10] netlink_unicast+0x449/0x710 [ 2983.908161][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.908161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.908161][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.908161][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.908161][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.908161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.908161][ T10] [ 2983.910581][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2983.910581][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.910581][ T10] ipv6_find_idev+0x102/0x170 [ 2983.910581][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.910581][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.910581][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.910581][ T10] netlink_unicast+0x449/0x710 [ 2983.910581][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.910581][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.910581][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.910581][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.910581][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.910581][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.910581][ T10] [ 2983.912378][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2983.912378][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.912378][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.912378][ T10] ipv6_find_idev+0x102/0x170 [ 2983.912378][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.912378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.912378][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.912378][ T10] netlink_unicast+0x449/0x710 [ 2983.912378][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.912378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.912378][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.912378][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.912378][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.912378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.912378][ T10] [ 2983.914392][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2983.914716][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2983.914716][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.914716][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.914716][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.914716][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.914716][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.914716][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.914716][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.914716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.914716][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.914716][ T10] netlink_unicast+0x449/0x710 [ 2983.914716][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.914716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.914716][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.914716][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.914716][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.914716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.914716][ T10] [ 2983.917076][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2983.917076][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.917076][ T10] ipv6_find_idev+0x102/0x170 [ 2983.917076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.917076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.917076][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.917076][ T10] netlink_unicast+0x449/0x710 [ 2983.917076][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.917076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.917076][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.917076][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.917076][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.917076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.917076][ T10] [ 2983.918947][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2983.918947][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.918947][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.918947][ T10] ipv6_find_idev+0x102/0x170 [ 2983.918947][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.918947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.918947][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.918947][ T10] netlink_unicast+0x449/0x710 [ 2983.918947][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.918947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.918947][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.918947][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.918947][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.918947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.918947][ T10] [ 2983.920967][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2983.921264][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2983.921264][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.921264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.921264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.921264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.921264][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.921264][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.921264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.921264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.921264][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.921264][ T10] netlink_unicast+0x449/0x710 [ 2983.921264][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.921264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.921264][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.921264][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.921264][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.921264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.921264][ T10] [ 2983.923600][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2983.923600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.923600][ T10] ipv6_find_idev+0x102/0x170 [ 2983.923600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.923600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.923600][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.923600][ T10] netlink_unicast+0x449/0x710 [ 2983.923600][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.923600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.923600][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.923600][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.923600][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.923600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.923600][ T10] [ 2983.925347][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2983.925347][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.925347][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.925347][ T10] ipv6_find_idev+0x102/0x170 [ 2983.925347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.925347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.925347][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.925347][ T10] netlink_unicast+0x449/0x710 [ 2983.925347][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.925347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.925347][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.925347][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.925347][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.925347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.925347][ T10] [ 2983.927336][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2983.927634][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2983.927634][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.927634][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.927634][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.927634][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.927634][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.927634][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.927634][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.927634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.927634][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.927634][ T10] netlink_unicast+0x449/0x710 [ 2983.927634][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.927634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.927634][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.927634][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.927634][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.927634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.927634][ T10] [ 2983.929987][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2983.929987][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.929987][ T10] ipv6_find_idev+0x102/0x170 [ 2983.929987][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.929987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.929987][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.929987][ T10] netlink_unicast+0x449/0x710 [ 2983.929987][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.929987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.929987][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.929987][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.929987][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.929987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.929987][ T10] [ 2983.931945][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2983.931945][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.931945][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.931945][ T10] ipv6_find_idev+0x102/0x170 [ 2983.931945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.931945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.931945][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.931945][ T10] netlink_unicast+0x449/0x710 [ 2983.931945][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.931945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.931945][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.931945][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.931945][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.931945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.931945][ T10] [ 2983.934244][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2983.934639][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2983.934639][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.934639][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.934639][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.934639][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.934639][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.934639][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.934639][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.934639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.934639][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.934639][ T10] netlink_unicast+0x449/0x710 [ 2983.934639][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.934639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.934639][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.934639][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.934639][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.934639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.934639][ T10] [ 2983.937000][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2983.937000][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.937000][ T10] ipv6_find_idev+0x102/0x170 [ 2983.937000][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.937000][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.937000][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.937000][ T10] netlink_unicast+0x449/0x710 [ 2983.937000][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.937000][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.937000][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.937000][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.937000][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.937000][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.937000][ T10] [ 2983.938809][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2983.938809][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.938809][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.938809][ T10] ipv6_find_idev+0x102/0x170 [ 2983.938809][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.938809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.938809][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.938809][ T10] netlink_unicast+0x449/0x710 [ 2983.938809][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.938809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.938809][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.938809][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.938809][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.938809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.938809][ T10] [ 2983.941440][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2983.941817][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2983.941817][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.941817][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.941817][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.941817][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.941817][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.941817][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.941817][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.941817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.941817][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.941817][ T10] netlink_unicast+0x449/0x710 [ 2983.941817][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.941817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.941817][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.941817][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.941817][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.941817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.941817][ T10] [ 2983.944260][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2983.944260][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.944260][ T10] ipv6_find_idev+0x102/0x170 [ 2983.944260][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.944260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.944260][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.944260][ T10] netlink_unicast+0x449/0x710 [ 2983.944260][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.944260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.944260][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.944260][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.944260][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.944260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.944260][ T10] [ 2983.946239][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2983.946239][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.946239][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.946239][ T10] ipv6_find_idev+0x102/0x170 [ 2983.946239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.946239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.946239][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.946239][ T10] netlink_unicast+0x449/0x710 [ 2983.946239][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.946239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.946239][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.946239][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.946239][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.946239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.946239][ T10] [ 2983.948492][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2983.948875][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2983.948875][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.948875][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.948875][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.948875][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.948875][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.948875][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.948875][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.948875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.948875][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.948875][ T10] netlink_unicast+0x449/0x710 [ 2983.948875][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.948875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.948875][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.948875][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.948875][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.948875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.948875][ T10] [ 2983.951439][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2983.951439][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.951439][ T10] ipv6_find_idev+0x102/0x170 [ 2983.951439][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.951439][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.951439][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.951439][ T10] netlink_unicast+0x449/0x710 [ 2983.951439][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.951439][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.951439][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.951439][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.951439][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.951439][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.951439][ T10] [ 2983.953346][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2983.953346][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.953346][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.953346][ T10] ipv6_find_idev+0x102/0x170 [ 2983.953346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.953346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.953346][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.953346][ T10] netlink_unicast+0x449/0x710 [ 2983.953346][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.953346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.953346][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.953346][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.953346][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.953346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.953346][ T10] [ 2983.955427][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2983.955804][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2983.955804][ T10] netdev_get_by_index+0x5e/0x80 [ 2983.955804][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2983.955804][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2983.955804][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2983.955804][ T10] ipv6_add_addr+0x411/0x2000 [ 2983.955804][ T10] inet6_addr_add+0x30e/0xa40 [ 2983.955804][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2983.955804][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.955804][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.955804][ T10] netlink_unicast+0x449/0x710 [ 2983.955804][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.955804][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.955804][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.955804][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.955804][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.955804][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.955804][ T10] [ 2983.958296][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2983.958296][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2983.958296][ T10] ipv6_find_idev+0x102/0x170 [ 2983.958296][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.958296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.958296][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.958296][ T10] netlink_unicast+0x449/0x710 [ 2983.958296][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.958296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.958296][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.958296][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.958296][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.958296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.958296][ T10] [ 2983.960163][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2983.960163][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2983.960163][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2983.960163][ T10] ipv6_find_idev+0x102/0x170 [ 2983.960163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2983.960163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2983.960163][ T10] netlink_rcv_skb+0x130/0x360 [ 2983.960163][ T10] netlink_unicast+0x449/0x710 [ 2983.960163][ T10] netlink_sendmsg+0x723/0xbe0 [ 2983.960163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2983.960163][ T10] ___sys_sendmsg+0xee/0x170 [ 2983.960163][ T10] __sys_sendmsg+0xcd/0x170 [ 2983.960163][ T10] do_syscall_64+0xc6/0x1e0 [ 2983.960163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2983.960163][ T10] [ 2994.187762][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 2994.188250][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2994.188250][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.188250][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.188250][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.188250][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.188250][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.188250][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.188250][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.188250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.188250][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.188250][ T10] netlink_unicast+0x449/0x710 [ 2994.188250][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.188250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.188250][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.188250][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.188250][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.188250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.188250][ T10] [ 2994.190356][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2994.190356][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.190356][ T10] ipv6_find_idev+0x102/0x170 [ 2994.190356][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.190356][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.190356][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.190356][ T10] netlink_unicast+0x449/0x710 [ 2994.190356][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.190356][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.190356][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.190356][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.190356][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.190356][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.190356][ T10] [ 2994.191958][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 2994.191958][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.191958][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.191958][ T10] ipv6_find_idev+0x102/0x170 [ 2994.191958][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.191958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.191958][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.191958][ T10] netlink_unicast+0x449/0x710 [ 2994.191958][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.191958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.191958][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.191958][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.191958][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.191958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.191958][ T10] [ 2994.193702][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 2994.193990][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2994.193990][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.193990][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.193990][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.193990][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.193990][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.193990][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.193990][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.193990][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.193990][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.193990][ T10] netlink_unicast+0x449/0x710 [ 2994.193990][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.193990][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.193990][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.193990][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.193990][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.193990][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.193990][ T10] [ 2994.196085][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2994.196085][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.196085][ T10] ipv6_find_idev+0x102/0x170 [ 2994.196085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.196085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.196085][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.196085][ T10] netlink_unicast+0x449/0x710 [ 2994.196085][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.196085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.196085][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.196085][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.196085][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.196085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.196085][ T10] [ 2994.197672][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 2994.197672][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.197672][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.197672][ T10] ipv6_find_idev+0x102/0x170 [ 2994.197672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.197672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.197672][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.197672][ T10] netlink_unicast+0x449/0x710 [ 2994.197672][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.197672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.197672][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.197672][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.197672][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.197672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.197672][ T10] [ 2994.199416][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 2994.199717][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2994.199717][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.199717][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.199717][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.199717][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.199717][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.199717][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.199717][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.199717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.199717][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.199717][ T10] netlink_unicast+0x449/0x710 [ 2994.199717][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.199717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.199717][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.199717][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.199717][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.199717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.199717][ T10] [ 2994.201761][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2994.201761][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.201761][ T10] ipv6_find_idev+0x102/0x170 [ 2994.201761][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.201761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.201761][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.201761][ T10] netlink_unicast+0x449/0x710 [ 2994.201761][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.201761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.201761][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.201761][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.201761][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.201761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.201761][ T10] [ 2994.203352][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 2994.203352][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.203352][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.203352][ T10] ipv6_find_idev+0x102/0x170 [ 2994.203352][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.203352][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.203352][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.203352][ T10] netlink_unicast+0x449/0x710 [ 2994.203352][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.203352][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.203352][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.203352][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.203352][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.203352][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.203352][ T10] [ 2994.205083][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 2994.205369][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2994.205369][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.205369][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.205369][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.205369][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.205369][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.205369][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.205369][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.205369][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.205369][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.205369][ T10] netlink_unicast+0x449/0x710 [ 2994.205369][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.205369][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.205369][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.205369][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.205369][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.205369][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.205369][ T10] [ 2994.207449][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2994.207449][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.207449][ T10] ipv6_find_idev+0x102/0x170 [ 2994.207449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.207449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.207449][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.207449][ T10] netlink_unicast+0x449/0x710 [ 2994.207449][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.207449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.207449][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.207449][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.207449][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.207449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.207449][ T10] [ 2994.209047][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 2994.209047][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.209047][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.209047][ T10] ipv6_find_idev+0x102/0x170 [ 2994.209047][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.209047][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.209047][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.209047][ T10] netlink_unicast+0x449/0x710 [ 2994.209047][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.209047][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.209047][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.209047][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.209047][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.209047][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.209047][ T10] [ 2994.210863][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 2994.211146][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2994.211146][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.211146][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.211146][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.211146][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.211146][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.211146][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.211146][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.211146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.211146][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.211146][ T10] netlink_unicast+0x449/0x710 [ 2994.211146][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.211146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.211146][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.211146][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.211146][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.211146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.211146][ T10] [ 2994.213225][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2994.213225][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.213225][ T10] ipv6_find_idev+0x102/0x170 [ 2994.213225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.213225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.213225][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.213225][ T10] netlink_unicast+0x449/0x710 [ 2994.213225][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.213225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.213225][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.213225][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.213225][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.213225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.213225][ T10] [ 2994.214860][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 2994.214860][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.214860][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.214860][ T10] ipv6_find_idev+0x102/0x170 [ 2994.214860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.214860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.214860][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.214860][ T10] netlink_unicast+0x449/0x710 [ 2994.214860][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.214860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.214860][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.214860][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.214860][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.214860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.214860][ T10] [ 2994.216849][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 2994.217116][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2994.217116][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.217116][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.217116][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.217116][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.217116][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.217116][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.217116][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.217116][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.217116][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.217116][ T10] netlink_unicast+0x449/0x710 [ 2994.217116][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.217116][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.217116][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.217116][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.217116][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.217116][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.217116][ T10] [ 2994.219372][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2994.219372][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.219372][ T10] ipv6_find_idev+0x102/0x170 [ 2994.219372][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.219372][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.219372][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.219372][ T10] netlink_unicast+0x449/0x710 [ 2994.219372][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.219372][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.219372][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.219372][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.219372][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.219372][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.219372][ T10] [ 2994.221091][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 2994.221091][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.221091][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.221091][ T10] ipv6_find_idev+0x102/0x170 [ 2994.221091][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.221091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.221091][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.221091][ T10] netlink_unicast+0x449/0x710 [ 2994.221091][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.221091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.221091][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.221091][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.221091][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.221091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.221091][ T10] [ 2994.223016][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 2994.223299][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2994.223299][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.223299][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.223299][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.223299][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.223299][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.223299][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.223299][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.223299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.223299][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.223299][ T10] netlink_unicast+0x449/0x710 [ 2994.223299][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.223299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.223299][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.223299][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.223299][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.223299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.223299][ T10] [ 2994.225550][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2994.225550][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.225550][ T10] ipv6_find_idev+0x102/0x170 [ 2994.225550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.225550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.225550][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.225550][ T10] netlink_unicast+0x449/0x710 [ 2994.225550][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.225550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.225550][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.225550][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.225550][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.225550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.225550][ T10] [ 2994.227359][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 2994.227359][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.227359][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.227359][ T10] ipv6_find_idev+0x102/0x170 [ 2994.227359][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.227359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.227359][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.227359][ T10] netlink_unicast+0x449/0x710 [ 2994.227359][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.227359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.227359][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.227359][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.227359][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.227359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.227359][ T10] [ 2994.229280][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 2994.229544][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2994.229544][ T10] netdev_get_by_index+0x5e/0x80 [ 2994.229544][ T10] fib6_nh_init+0x3d8/0x15b0 [ 2994.229544][ T10] ip6_route_info_create+0xf18/0x17d0 [ 2994.229544][ T10] addrconf_f6i_alloc+0x244/0x410 [ 2994.229544][ T10] ipv6_add_addr+0x411/0x2000 [ 2994.229544][ T10] inet6_addr_add+0x30e/0xa40 [ 2994.229544][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 2994.229544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.229544][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.229544][ T10] netlink_unicast+0x449/0x710 [ 2994.229544][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.229544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.229544][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.229544][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.229544][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.229544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.229544][ T10] [ 2994.231792][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2994.231792][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 2994.231792][ T10] ipv6_find_idev+0x102/0x170 [ 2994.231792][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.231792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.231792][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.231792][ T10] netlink_unicast+0x449/0x710 [ 2994.231792][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.231792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.231792][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.231792][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.231792][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.231792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.231792][ T10] [ 2994.233531][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 2994.233531][ T10] neigh_parms_alloc+0x1e5/0x510 [ 2994.233531][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 2994.233531][ T10] ipv6_find_idev+0x102/0x170 [ 2994.233531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 2994.233531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2994.233531][ T10] netlink_rcv_skb+0x130/0x360 [ 2994.233531][ T10] netlink_unicast+0x449/0x710 [ 2994.233531][ T10] netlink_sendmsg+0x723/0xbe0 [ 2994.233531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 2994.233531][ T10] ___sys_sendmsg+0xee/0x170 [ 2994.233531][ T10] __sys_sendmsg+0xcd/0x170 [ 2994.233531][ T10] do_syscall_64+0xc6/0x1e0 [ 2994.233531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2994.233531][ T10] [ 3004.475764][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3004.476217][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3004.476217][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.476217][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.476217][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.476217][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.476217][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.476217][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.476217][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.476217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.476217][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.476217][ T10] netlink_unicast+0x449/0x710 [ 3004.476217][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.476217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.476217][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.476217][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.476217][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.476217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.476217][ T10] [ 3004.478494][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3004.478494][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.478494][ T10] ipv6_find_idev+0x102/0x170 [ 3004.478494][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.478494][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.478494][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.478494][ T10] netlink_unicast+0x449/0x710 [ 3004.478494][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.478494][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.478494][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.478494][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.478494][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.478494][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.478494][ T10] [ 3004.480207][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3004.480207][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.480207][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.480207][ T10] ipv6_find_idev+0x102/0x170 [ 3004.480207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.480207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.480207][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.480207][ T10] netlink_unicast+0x449/0x710 [ 3004.480207][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.480207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.480207][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.480207][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.480207][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.480207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.480207][ T10] [ 3004.482119][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3004.482413][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3004.482413][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.482413][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.482413][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.482413][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.482413][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.482413][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.482413][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.482413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.482413][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.482413][ T10] netlink_unicast+0x449/0x710 [ 3004.482413][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.482413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.482413][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.482413][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.482413][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.482413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.482413][ T10] [ 3004.484646][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3004.484646][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.484646][ T10] ipv6_find_idev+0x102/0x170 [ 3004.484646][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.484646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.484646][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.484646][ T10] netlink_unicast+0x449/0x710 [ 3004.484646][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.484646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.484646][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.484646][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.484646][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.484646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.484646][ T10] [ 3004.486384][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3004.486384][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.486384][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.486384][ T10] ipv6_find_idev+0x102/0x170 [ 3004.486384][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.486384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.486384][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.486384][ T10] netlink_unicast+0x449/0x710 [ 3004.486384][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.486384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.486384][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.486384][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.486384][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.486384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.486384][ T10] [ 3004.488228][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3004.488524][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3004.488524][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.488524][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.488524][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.488524][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.488524][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.488524][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.488524][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.488524][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.488524][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.488524][ T10] netlink_unicast+0x449/0x710 [ 3004.488524][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.488524][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.488524][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.488524][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.488524][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.488524][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.488524][ T10] [ 3004.490737][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3004.490737][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.490737][ T10] ipv6_find_idev+0x102/0x170 [ 3004.490737][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.490737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.490737][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.490737][ T10] netlink_unicast+0x449/0x710 [ 3004.490737][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.490737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.490737][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.490737][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.490737][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.490737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.490737][ T10] [ 3004.492416][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3004.492416][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.492416][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.492416][ T10] ipv6_find_idev+0x102/0x170 [ 3004.492416][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.492416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.492416][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.492416][ T10] netlink_unicast+0x449/0x710 [ 3004.492416][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.492416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.492416][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.492416][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.492416][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.492416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.492416][ T10] [ 3004.494338][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3004.494627][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3004.494627][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.494627][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.494627][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.494627][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.494627][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.494627][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.494627][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.494627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.494627][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.494627][ T10] netlink_unicast+0x449/0x710 [ 3004.494627][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.494627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.494627][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.494627][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.494627][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.494627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.494627][ T10] [ 3004.496904][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3004.496904][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.496904][ T10] ipv6_find_idev+0x102/0x170 [ 3004.496904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.496904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.496904][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.496904][ T10] netlink_unicast+0x449/0x710 [ 3004.496904][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.496904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.496904][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.496904][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.496904][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.496904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.496904][ T10] [ 3004.498591][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3004.498591][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.498591][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.498591][ T10] ipv6_find_idev+0x102/0x170 [ 3004.498591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.498591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.498591][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.498591][ T10] netlink_unicast+0x449/0x710 [ 3004.498591][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.498591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.498591][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.498591][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.498591][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.498591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.498591][ T10] [ 3004.500878][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3004.501169][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3004.501169][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.501169][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.501169][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.501169][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.501169][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.501169][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.501169][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.501169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.501169][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.501169][ T10] netlink_unicast+0x449/0x710 [ 3004.501169][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.501169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.501169][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.501169][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.501169][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.501169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.501169][ T10] [ 3004.503404][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3004.503404][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.503404][ T10] ipv6_find_idev+0x102/0x170 [ 3004.503404][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.503404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.503404][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.503404][ T10] netlink_unicast+0x449/0x710 [ 3004.503404][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.503404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.503404][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.503404][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.503404][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.503404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.503404][ T10] [ 3004.505100][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3004.505100][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.505100][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.505100][ T10] ipv6_find_idev+0x102/0x170 [ 3004.505100][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.505100][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.505100][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.505100][ T10] netlink_unicast+0x449/0x710 [ 3004.505100][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.505100][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.505100][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.505100][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.505100][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.505100][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.505100][ T10] [ 3004.507011][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3004.507301][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3004.507301][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.507301][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.507301][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.507301][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.507301][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.507301][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.507301][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.507301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.507301][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.507301][ T10] netlink_unicast+0x449/0x710 [ 3004.507301][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.507301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.507301][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.507301][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.507301][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.507301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.507301][ T10] [ 3004.509580][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3004.509580][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.509580][ T10] ipv6_find_idev+0x102/0x170 [ 3004.509580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.509580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.509580][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.509580][ T10] netlink_unicast+0x449/0x710 [ 3004.509580][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.509580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.509580][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.509580][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.509580][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.509580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.509580][ T10] [ 3004.511516][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3004.511516][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.511516][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.511516][ T10] ipv6_find_idev+0x102/0x170 [ 3004.511516][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.511516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.511516][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.511516][ T10] netlink_unicast+0x449/0x710 [ 3004.511516][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.511516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.511516][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.511516][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.511516][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.511516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.511516][ T10] [ 3004.513604][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3004.513972][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3004.513972][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.513972][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.513972][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.513972][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.513972][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.513972][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.513972][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.513972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.513972][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.513972][ T10] netlink_unicast+0x449/0x710 [ 3004.513972][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.513972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.513972][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.513972][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.513972][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.513972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.513972][ T10] [ 3004.516320][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3004.516320][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.516320][ T10] ipv6_find_idev+0x102/0x170 [ 3004.516320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.516320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.516320][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.516320][ T10] netlink_unicast+0x449/0x710 [ 3004.516320][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.516320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.516320][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.516320][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.516320][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.516320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.516320][ T10] [ 3004.518223][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3004.518223][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.518223][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.518223][ T10] ipv6_find_idev+0x102/0x170 [ 3004.518223][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.518223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.518223][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.518223][ T10] netlink_unicast+0x449/0x710 [ 3004.518223][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.518223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.518223][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.518223][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.518223][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.518223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.518223][ T10] [ 3004.520353][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3004.520646][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3004.520646][ T10] netdev_get_by_index+0x5e/0x80 [ 3004.520646][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3004.520646][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3004.520646][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3004.520646][ T10] ipv6_add_addr+0x411/0x2000 [ 3004.520646][ T10] inet6_addr_add+0x30e/0xa40 [ 3004.520646][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3004.520646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.520646][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.520646][ T10] netlink_unicast+0x449/0x710 [ 3004.520646][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.520646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.520646][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.520646][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.520646][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.520646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.520646][ T10] [ 3004.523097][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3004.523097][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3004.523097][ T10] ipv6_find_idev+0x102/0x170 [ 3004.523097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.523097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.523097][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.523097][ T10] netlink_unicast+0x449/0x710 [ 3004.523097][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.523097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.523097][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.523097][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.523097][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.523097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.523097][ T10] [ 3004.525029][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3004.525029][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3004.525029][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3004.525029][ T10] ipv6_find_idev+0x102/0x170 [ 3004.525029][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3004.525029][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3004.525029][ T10] netlink_rcv_skb+0x130/0x360 [ 3004.525029][ T10] netlink_unicast+0x449/0x710 [ 3004.525029][ T10] netlink_sendmsg+0x723/0xbe0 [ 3004.525029][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3004.525029][ T10] ___sys_sendmsg+0xee/0x170 [ 3004.525029][ T10] __sys_sendmsg+0xcd/0x170 [ 3004.525029][ T10] do_syscall_64+0xc6/0x1e0 [ 3004.525029][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3004.525029][ T10] [ 3014.763749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3014.764255][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3014.764255][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.764255][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.764255][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.764255][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.764255][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.764255][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.764255][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.764255][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.764255][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.764255][ T10] netlink_unicast+0x449/0x710 [ 3014.764255][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.764255][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.764255][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.764255][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.764255][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.764255][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.764255][ T10] [ 3014.766465][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3014.766465][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.766465][ T10] ipv6_find_idev+0x102/0x170 [ 3014.766465][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.766465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.766465][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.766465][ T10] netlink_unicast+0x449/0x710 [ 3014.766465][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.766465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.766465][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.766465][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.766465][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.766465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.766465][ T10] [ 3014.768170][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3014.768170][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.768170][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.768170][ T10] ipv6_find_idev+0x102/0x170 [ 3014.768170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.768170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.768170][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.768170][ T10] netlink_unicast+0x449/0x710 [ 3014.768170][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.768170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.768170][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.768170][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.768170][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.768170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.768170][ T10] [ 3014.770065][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3014.770356][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3014.770356][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.770356][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.770356][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.770356][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.770356][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.770356][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.770356][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.770356][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.770356][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.770356][ T10] netlink_unicast+0x449/0x710 [ 3014.770356][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.770356][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.770356][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.770356][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.770356][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.770356][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.770356][ T10] [ 3014.772540][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3014.772540][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.772540][ T10] ipv6_find_idev+0x102/0x170 [ 3014.772540][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.772540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.772540][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.772540][ T10] netlink_unicast+0x449/0x710 [ 3014.772540][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.772540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.772540][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.772540][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.772540][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.772540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.772540][ T10] [ 3014.774207][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3014.774207][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.774207][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.774207][ T10] ipv6_find_idev+0x102/0x170 [ 3014.774207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.774207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.774207][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.774207][ T10] netlink_unicast+0x449/0x710 [ 3014.774207][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.774207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.774207][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.774207][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.774207][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.774207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.774207][ T10] [ 3014.776094][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3014.776385][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3014.776385][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.776385][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.776385][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.776385][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.776385][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.776385][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.776385][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.776385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.776385][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.776385][ T10] netlink_unicast+0x449/0x710 [ 3014.776385][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.776385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.776385][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.776385][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.776385][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.776385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.776385][ T10] [ 3014.778588][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3014.778588][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.778588][ T10] ipv6_find_idev+0x102/0x170 [ 3014.778588][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.778588][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.778588][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.778588][ T10] netlink_unicast+0x449/0x710 [ 3014.778588][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.778588][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.778588][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.778588][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.778588][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.778588][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.778588][ T10] [ 3014.780312][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3014.780312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.780312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.780312][ T10] ipv6_find_idev+0x102/0x170 [ 3014.780312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.780312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.780312][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.780312][ T10] netlink_unicast+0x449/0x710 [ 3014.780312][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.780312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.780312][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.780312][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.780312][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.780312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.780312][ T10] [ 3014.782136][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3014.782451][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3014.782451][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.782451][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.782451][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.782451][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.782451][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.782451][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.782451][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.782451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.782451][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.782451][ T10] netlink_unicast+0x449/0x710 [ 3014.782451][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.782451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.782451][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.782451][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.782451][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.782451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.782451][ T10] [ 3014.784669][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3014.784669][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.784669][ T10] ipv6_find_idev+0x102/0x170 [ 3014.784669][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.784669][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.784669][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.784669][ T10] netlink_unicast+0x449/0x710 [ 3014.784669][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.784669][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.784669][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.784669][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.784669][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.784669][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.784669][ T10] [ 3014.786377][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3014.786377][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.786377][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.786377][ T10] ipv6_find_idev+0x102/0x170 [ 3014.786377][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.786377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.786377][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.786377][ T10] netlink_unicast+0x449/0x710 [ 3014.786377][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.786377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.786377][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.786377][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.786377][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.786377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.786377][ T10] [ 3014.788633][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3014.789284][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3014.789284][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.789284][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.789284][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.789284][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.789284][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.789284][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.789284][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.789284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.789284][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.789284][ T10] netlink_unicast+0x449/0x710 [ 3014.789284][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.789284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.789284][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.789284][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.789284][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.789284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.789284][ T10] [ 3014.791473][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3014.791473][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.791473][ T10] ipv6_find_idev+0x102/0x170 [ 3014.791473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.791473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.791473][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.791473][ T10] netlink_unicast+0x449/0x710 [ 3014.791473][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.791473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.791473][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.791473][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.791473][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.791473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.791473][ T10] [ 3014.793189][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3014.793189][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.793189][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.793189][ T10] ipv6_find_idev+0x102/0x170 [ 3014.793189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.793189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.793189][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.793189][ T10] netlink_unicast+0x449/0x710 [ 3014.793189][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.793189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.793189][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.793189][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.793189][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.793189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.793189][ T10] [ 3014.795007][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3014.795311][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3014.795311][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.795311][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.795311][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.795311][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.795311][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.795311][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.795311][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.795311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.795311][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.795311][ T10] netlink_unicast+0x449/0x710 [ 3014.795311][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.795311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.795311][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.795311][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.795311][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.795311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.795311][ T10] [ 3014.797542][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3014.797542][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.797542][ T10] ipv6_find_idev+0x102/0x170 [ 3014.797542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.797542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.797542][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.797542][ T10] netlink_unicast+0x449/0x710 [ 3014.797542][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.797542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.797542][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.797542][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.797542][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.797542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.797542][ T10] [ 3014.799264][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3014.799264][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.799264][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.799264][ T10] ipv6_find_idev+0x102/0x170 [ 3014.799264][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.799264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.799264][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.799264][ T10] netlink_unicast+0x449/0x710 [ 3014.799264][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.799264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.799264][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.799264][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.799264][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.799264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.799264][ T10] [ 3014.801353][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3014.801643][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3014.801643][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.801643][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.801643][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.801643][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.801643][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.801643][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.801643][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.801643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.801643][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.801643][ T10] netlink_unicast+0x449/0x710 [ 3014.801643][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.801643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.801643][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.801643][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.801643][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.801643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.801643][ T10] [ 3014.804127][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3014.804127][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.804127][ T10] ipv6_find_idev+0x102/0x170 [ 3014.804127][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.804127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.804127][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.804127][ T10] netlink_unicast+0x449/0x710 [ 3014.804127][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.804127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.804127][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.804127][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.804127][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.804127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.804127][ T10] [ 3014.806008][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3014.806008][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.806008][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.806008][ T10] ipv6_find_idev+0x102/0x170 [ 3014.806008][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.806008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.806008][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.806008][ T10] netlink_unicast+0x449/0x710 [ 3014.806008][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.806008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.806008][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.806008][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.806008][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.806008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.806008][ T10] [ 3014.808090][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3014.808381][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3014.808381][ T10] netdev_get_by_index+0x5e/0x80 [ 3014.808381][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3014.808381][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3014.808381][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3014.808381][ T10] ipv6_add_addr+0x411/0x2000 [ 3014.808381][ T10] inet6_addr_add+0x30e/0xa40 [ 3014.808381][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3014.808381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.808381][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.808381][ T10] netlink_unicast+0x449/0x710 [ 3014.808381][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.808381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.808381][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.808381][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.808381][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.808381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.808381][ T10] [ 3014.810869][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3014.810869][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3014.810869][ T10] ipv6_find_idev+0x102/0x170 [ 3014.810869][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.810869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.810869][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.810869][ T10] netlink_unicast+0x449/0x710 [ 3014.810869][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.810869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.810869][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.810869][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.810869][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.810869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.810869][ T10] [ 3014.812828][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3014.812828][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3014.812828][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3014.812828][ T10] ipv6_find_idev+0x102/0x170 [ 3014.812828][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3014.812828][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3014.812828][ T10] netlink_rcv_skb+0x130/0x360 [ 3014.812828][ T10] netlink_unicast+0x449/0x710 [ 3014.812828][ T10] netlink_sendmsg+0x723/0xbe0 [ 3014.812828][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3014.812828][ T10] ___sys_sendmsg+0xee/0x170 [ 3014.812828][ T10] __sys_sendmsg+0xcd/0x170 [ 3014.812828][ T10] do_syscall_64+0xc6/0x1e0 [ 3014.812828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3014.812828][ T10] [ 3025.051778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3025.052189][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3025.052189][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.052189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.052189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.052189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.052189][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.052189][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.052189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.052189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.052189][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.052189][ T10] netlink_unicast+0x449/0x710 [ 3025.052189][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.052189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.052189][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.052189][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.052189][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.052189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.052189][ T10] [ 3025.054428][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3025.054428][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.054428][ T10] ipv6_find_idev+0x102/0x170 [ 3025.054428][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.054428][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.054428][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.054428][ T10] netlink_unicast+0x449/0x710 [ 3025.054428][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.054428][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.054428][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.054428][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.054428][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.054428][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.054428][ T10] [ 3025.056207][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3025.056207][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.056207][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.056207][ T10] ipv6_find_idev+0x102/0x170 [ 3025.056207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.056207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.056207][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.056207][ T10] netlink_unicast+0x449/0x710 [ 3025.056207][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.056207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.056207][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.056207][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.056207][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.056207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.056207][ T10] [ 3025.058075][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3025.058381][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3025.058381][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.058381][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.058381][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.058381][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.058381][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.058381][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.058381][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.058381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.058381][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.058381][ T10] netlink_unicast+0x449/0x710 [ 3025.058381][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.058381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.058381][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.058381][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.058381][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.058381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.058381][ T10] [ 3025.060596][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3025.060596][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.060596][ T10] ipv6_find_idev+0x102/0x170 [ 3025.060596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.060596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.060596][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.060596][ T10] netlink_unicast+0x449/0x710 [ 3025.060596][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.060596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.060596][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.060596][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.060596][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.060596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.060596][ T10] [ 3025.062326][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3025.062326][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.062326][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.062326][ T10] ipv6_find_idev+0x102/0x170 [ 3025.062326][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.062326][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.062326][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.062326][ T10] netlink_unicast+0x449/0x710 [ 3025.062326][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.062326][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.062326][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.062326][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.062326][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.062326][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.062326][ T10] [ 3025.064170][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3025.064452][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3025.064452][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.064452][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.064452][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.064452][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.064452][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.064452][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.064452][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.064452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.064452][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.064452][ T10] netlink_unicast+0x449/0x710 [ 3025.064452][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.064452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.064452][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.064452][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.064452][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.064452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.064452][ T10] [ 3025.066677][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3025.066677][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.066677][ T10] ipv6_find_idev+0x102/0x170 [ 3025.066677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.066677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.066677][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.066677][ T10] netlink_unicast+0x449/0x710 [ 3025.066677][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.066677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.066677][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.066677][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.066677][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.066677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.066677][ T10] [ 3025.068367][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3025.068367][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.068367][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.068367][ T10] ipv6_find_idev+0x102/0x170 [ 3025.068367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.068367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.068367][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.068367][ T10] netlink_unicast+0x449/0x710 [ 3025.068367][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.068367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.068367][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.068367][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.068367][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.068367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.068367][ T10] [ 3025.070216][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3025.070510][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3025.070510][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.070510][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.070510][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.070510][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.070510][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.070510][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.070510][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.070510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.070510][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.070510][ T10] netlink_unicast+0x449/0x710 [ 3025.070510][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.070510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.070510][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.070510][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.070510][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.070510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.070510][ T10] [ 3025.072698][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3025.072698][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.072698][ T10] ipv6_find_idev+0x102/0x170 [ 3025.072698][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.072698][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.072698][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.072698][ T10] netlink_unicast+0x449/0x710 [ 3025.072698][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.072698][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.072698][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.072698][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.072698][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.072698][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.072698][ T10] [ 3025.074386][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3025.074386][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.074386][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.074386][ T10] ipv6_find_idev+0x102/0x170 [ 3025.074386][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.074386][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.074386][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.074386][ T10] netlink_unicast+0x449/0x710 [ 3025.074386][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.074386][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.074386][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.074386][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.074386][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.074386][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.074386][ T10] [ 3025.076683][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3025.076979][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3025.076979][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.076979][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.076979][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.076979][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.076979][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.076979][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.076979][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.076979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.076979][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.076979][ T10] netlink_unicast+0x449/0x710 [ 3025.076979][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.076979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.076979][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.076979][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.076979][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.076979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.076979][ T10] [ 3025.079172][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3025.079172][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.079172][ T10] ipv6_find_idev+0x102/0x170 [ 3025.079172][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.079172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.079172][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.079172][ T10] netlink_unicast+0x449/0x710 [ 3025.079172][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.079172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.079172][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.079172][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.079172][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.079172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.079172][ T10] [ 3025.080908][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3025.080908][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.080908][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.080908][ T10] ipv6_find_idev+0x102/0x170 [ 3025.080908][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.080908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.080908][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.080908][ T10] netlink_unicast+0x449/0x710 [ 3025.080908][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.080908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.080908][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.080908][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.080908][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.080908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.080908][ T10] [ 3025.082869][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3025.083156][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3025.083156][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.083156][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.083156][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.083156][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.083156][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.083156][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.083156][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.083156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.083156][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.083156][ T10] netlink_unicast+0x449/0x710 [ 3025.083156][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.083156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.083156][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.083156][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.083156][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.083156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.083156][ T10] [ 3025.085500][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3025.085500][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.085500][ T10] ipv6_find_idev+0x102/0x170 [ 3025.085500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.085500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.085500][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.085500][ T10] netlink_unicast+0x449/0x710 [ 3025.085500][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.085500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.085500][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.085500][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.085500][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.085500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.085500][ T10] [ 3025.087468][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3025.087468][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.087468][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.087468][ T10] ipv6_find_idev+0x102/0x170 [ 3025.087468][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.087468][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.087468][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.087468][ T10] netlink_unicast+0x449/0x710 [ 3025.087468][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.087468][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.087468][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.087468][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.087468][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.087468][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.087468][ T10] [ 3025.089521][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3025.089863][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3025.089863][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.089863][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.089863][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.089863][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.089863][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.089863][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.089863][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.089863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.089863][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.089863][ T10] netlink_unicast+0x449/0x710 [ 3025.089863][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.089863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.089863][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.089863][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.089863][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.089863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.089863][ T10] [ 3025.092270][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3025.092270][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.092270][ T10] ipv6_find_idev+0x102/0x170 [ 3025.092270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.092270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.092270][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.092270][ T10] netlink_unicast+0x449/0x710 [ 3025.092270][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.092270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.092270][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.092270][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.092270][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.092270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.092270][ T10] [ 3025.094136][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3025.094136][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.094136][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.094136][ T10] ipv6_find_idev+0x102/0x170 [ 3025.094136][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.094136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.094136][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.094136][ T10] netlink_unicast+0x449/0x710 [ 3025.094136][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.094136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.094136][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.094136][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.094136][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.094136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.094136][ T10] [ 3025.096278][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3025.096570][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3025.096570][ T10] netdev_get_by_index+0x5e/0x80 [ 3025.096570][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3025.096570][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3025.096570][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3025.096570][ T10] ipv6_add_addr+0x411/0x2000 [ 3025.096570][ T10] inet6_addr_add+0x30e/0xa40 [ 3025.096570][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3025.096570][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.096570][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.096570][ T10] netlink_unicast+0x449/0x710 [ 3025.096570][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.096570][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.096570][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.096570][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.096570][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.096570][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.096570][ T10] [ 3025.099009][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3025.099009][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3025.099009][ T10] ipv6_find_idev+0x102/0x170 [ 3025.099009][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.099009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.099009][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.099009][ T10] netlink_unicast+0x449/0x710 [ 3025.099009][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.099009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.099009][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.099009][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.099009][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.099009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.099009][ T10] [ 3025.100913][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3025.100913][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3025.100913][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3025.100913][ T10] ipv6_find_idev+0x102/0x170 [ 3025.100913][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3025.100913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3025.100913][ T10] netlink_rcv_skb+0x130/0x360 [ 3025.100913][ T10] netlink_unicast+0x449/0x710 [ 3025.100913][ T10] netlink_sendmsg+0x723/0xbe0 [ 3025.100913][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3025.100913][ T10] ___sys_sendmsg+0xee/0x170 [ 3025.100913][ T10] __sys_sendmsg+0xcd/0x170 [ 3025.100913][ T10] do_syscall_64+0xc6/0x1e0 [ 3025.100913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3025.100913][ T10] [ 3035.339770][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3035.340180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3035.340180][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.340180][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.340180][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.340180][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.340180][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.340180][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.340180][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.340180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.340180][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.340180][ T10] netlink_unicast+0x449/0x710 [ 3035.340180][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.340180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.340180][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.340180][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.340180][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.340180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.340180][ T10] [ 3035.342415][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3035.342415][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.342415][ T10] ipv6_find_idev+0x102/0x170 [ 3035.342415][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.342415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.342415][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.342415][ T10] netlink_unicast+0x449/0x710 [ 3035.342415][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.342415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.342415][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.342415][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.342415][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.342415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.342415][ T10] [ 3035.344102][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3035.344102][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.344102][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.344102][ T10] ipv6_find_idev+0x102/0x170 [ 3035.344102][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.344102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.344102][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.344102][ T10] netlink_unicast+0x449/0x710 [ 3035.344102][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.344102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.344102][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.344102][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.344102][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.344102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.344102][ T10] [ 3035.345970][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3035.346271][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3035.346271][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.346271][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.346271][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.346271][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.346271][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.346271][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.346271][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.346271][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.346271][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.346271][ T10] netlink_unicast+0x449/0x710 [ 3035.346271][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.346271][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.346271][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.346271][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.346271][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.346271][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.346271][ T10] [ 3035.348477][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3035.348477][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.348477][ T10] ipv6_find_idev+0x102/0x170 [ 3035.348477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.348477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.348477][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.348477][ T10] netlink_unicast+0x449/0x710 [ 3035.348477][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.348477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.348477][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.348477][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.348477][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.348477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.348477][ T10] [ 3035.350192][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3035.350192][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.350192][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.350192][ T10] ipv6_find_idev+0x102/0x170 [ 3035.350192][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.350192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.350192][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.350192][ T10] netlink_unicast+0x449/0x710 [ 3035.350192][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.350192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.350192][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.350192][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.350192][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.350192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.350192][ T10] [ 3035.352021][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3035.352300][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3035.352300][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.352300][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.352300][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.352300][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.352300][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.352300][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.352300][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.352300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.352300][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.352300][ T10] netlink_unicast+0x449/0x710 [ 3035.352300][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.352300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.352300][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.352300][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.352300][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.352300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.352300][ T10] [ 3035.354471][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3035.354471][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.354471][ T10] ipv6_find_idev+0x102/0x170 [ 3035.354471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.354471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.354471][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.354471][ T10] netlink_unicast+0x449/0x710 [ 3035.354471][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.354471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.354471][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.354471][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.354471][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.354471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.354471][ T10] [ 3035.356168][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3035.356168][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.356168][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.356168][ T10] ipv6_find_idev+0x102/0x170 [ 3035.356168][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.356168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.356168][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.356168][ T10] netlink_unicast+0x449/0x710 [ 3035.356168][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.356168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.356168][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.356168][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.356168][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.356168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.356168][ T10] [ 3035.358042][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3035.358329][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3035.358329][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.358329][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.358329][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.358329][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.358329][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.358329][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.358329][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.358329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.358329][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.358329][ T10] netlink_unicast+0x449/0x710 [ 3035.358329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.358329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.358329][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.358329][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.358329][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.358329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.358329][ T10] [ 3035.360523][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3035.360523][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.360523][ T10] ipv6_find_idev+0x102/0x170 [ 3035.360523][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.360523][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.360523][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.360523][ T10] netlink_unicast+0x449/0x710 [ 3035.360523][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.360523][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.360523][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.360523][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.360523][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.360523][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.360523][ T10] [ 3035.362258][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3035.362258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.362258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.362258][ T10] ipv6_find_idev+0x102/0x170 [ 3035.362258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.362258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.362258][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.362258][ T10] netlink_unicast+0x449/0x710 [ 3035.362258][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.362258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.362258][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.362258][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.362258][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.362258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.362258][ T10] [ 3035.364494][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3035.365103][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3035.365103][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.365103][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.365103][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.365103][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.365103][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.365103][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.365103][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.365103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.365103][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.365103][ T10] netlink_unicast+0x449/0x710 [ 3035.365103][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.365103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.365103][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.365103][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.365103][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.365103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.365103][ T10] [ 3035.367325][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3035.367325][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.367325][ T10] ipv6_find_idev+0x102/0x170 [ 3035.367325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.367325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.367325][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.367325][ T10] netlink_unicast+0x449/0x710 [ 3035.367325][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.367325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.367325][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.367325][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.367325][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.367325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.367325][ T10] [ 3035.369037][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3035.369037][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.369037][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.369037][ T10] ipv6_find_idev+0x102/0x170 [ 3035.369037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.369037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.369037][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.369037][ T10] netlink_unicast+0x449/0x710 [ 3035.369037][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.369037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.369037][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.369037][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.369037][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.369037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.369037][ T10] [ 3035.370911][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3035.371202][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3035.371202][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.371202][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.371202][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.371202][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.371202][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.371202][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.371202][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.371202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.371202][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.371202][ T10] netlink_unicast+0x449/0x710 [ 3035.371202][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.371202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.371202][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.371202][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.371202][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.371202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.371202][ T10] [ 3035.373419][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3035.373419][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.373419][ T10] ipv6_find_idev+0x102/0x170 [ 3035.373419][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.373419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.373419][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.373419][ T10] netlink_unicast+0x449/0x710 [ 3035.373419][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.373419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.373419][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.373419][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.373419][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.373419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.373419][ T10] [ 3035.375161][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3035.375161][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.375161][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.375161][ T10] ipv6_find_idev+0x102/0x170 [ 3035.375161][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.375161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.375161][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.375161][ T10] netlink_unicast+0x449/0x710 [ 3035.375161][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.375161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.375161][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.375161][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.375161][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.375161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.375161][ T10] [ 3035.377323][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3035.377613][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3035.377613][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.377613][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.377613][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.377613][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.377613][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.377613][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.377613][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.377613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.377613][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.377613][ T10] netlink_unicast+0x449/0x710 [ 3035.377613][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.377613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.377613][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.377613][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.377613][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.377613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.377613][ T10] [ 3035.379971][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3035.379971][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.379971][ T10] ipv6_find_idev+0x102/0x170 [ 3035.379971][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.379971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.379971][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.379971][ T10] netlink_unicast+0x449/0x710 [ 3035.379971][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.379971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.379971][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.379971][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.379971][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.379971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.379971][ T10] [ 3035.381859][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3035.381859][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.381859][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.381859][ T10] ipv6_find_idev+0x102/0x170 [ 3035.381859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.381859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.381859][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.381859][ T10] netlink_unicast+0x449/0x710 [ 3035.381859][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.381859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.381859][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.381859][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.381859][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.381859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.381859][ T10] [ 3035.383925][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3035.384210][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3035.384210][ T10] netdev_get_by_index+0x5e/0x80 [ 3035.384210][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3035.384210][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3035.384210][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3035.384210][ T10] ipv6_add_addr+0x411/0x2000 [ 3035.384210][ T10] inet6_addr_add+0x30e/0xa40 [ 3035.384210][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3035.384210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.384210][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.384210][ T10] netlink_unicast+0x449/0x710 [ 3035.384210][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.384210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.384210][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.384210][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.384210][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.384210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.384210][ T10] [ 3035.386656][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3035.386656][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3035.386656][ T10] ipv6_find_idev+0x102/0x170 [ 3035.386656][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.386656][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.386656][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.386656][ T10] netlink_unicast+0x449/0x710 [ 3035.386656][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.386656][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.386656][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.386656][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.386656][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.386656][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.386656][ T10] [ 3035.388591][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3035.388591][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3035.388591][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3035.388591][ T10] ipv6_find_idev+0x102/0x170 [ 3035.388591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3035.388591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3035.388591][ T10] netlink_rcv_skb+0x130/0x360 [ 3035.388591][ T10] netlink_unicast+0x449/0x710 [ 3035.388591][ T10] netlink_sendmsg+0x723/0xbe0 [ 3035.388591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3035.388591][ T10] ___sys_sendmsg+0xee/0x170 [ 3035.388591][ T10] __sys_sendmsg+0xcd/0x170 [ 3035.388591][ T10] do_syscall_64+0xc6/0x1e0 [ 3035.388591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3035.388591][ T10] [ 3045.627752][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3045.628162][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3045.628162][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.628162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.628162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.628162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.628162][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.628162][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.628162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.628162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.628162][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.628162][ T10] netlink_unicast+0x449/0x710 [ 3045.628162][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.628162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.628162][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.628162][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.628162][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.628162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.628162][ T10] [ 3045.630406][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3045.630406][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.630406][ T10] ipv6_find_idev+0x102/0x170 [ 3045.630406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.630406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.630406][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.630406][ T10] netlink_unicast+0x449/0x710 [ 3045.630406][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.630406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.630406][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.630406][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.630406][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.630406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.630406][ T10] [ 3045.632113][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3045.632113][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.632113][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.632113][ T10] ipv6_find_idev+0x102/0x170 [ 3045.632113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.632113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.632113][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.632113][ T10] netlink_unicast+0x449/0x710 [ 3045.632113][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.632113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.632113][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.632113][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.632113][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.632113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.632113][ T10] [ 3045.633960][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3045.634273][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3045.634273][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.634273][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.634273][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.634273][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.634273][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.634273][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.634273][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.634273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.634273][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.634273][ T10] netlink_unicast+0x449/0x710 [ 3045.634273][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.634273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.634273][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.634273][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.634273][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.634273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.634273][ T10] [ 3045.636533][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3045.636533][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.636533][ T10] ipv6_find_idev+0x102/0x170 [ 3045.636533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.636533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.636533][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.636533][ T10] netlink_unicast+0x449/0x710 [ 3045.636533][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.636533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.636533][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.636533][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.636533][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.636533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.636533][ T10] [ 3045.638247][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3045.638247][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.638247][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.638247][ T10] ipv6_find_idev+0x102/0x170 [ 3045.638247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.638247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.638247][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.638247][ T10] netlink_unicast+0x449/0x710 [ 3045.638247][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.638247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.638247][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.638247][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.638247][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.638247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.638247][ T10] [ 3045.640131][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3045.640441][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3045.640441][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.640441][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.640441][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.640441][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.640441][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.640441][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.640441][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.640441][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.640441][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.640441][ T10] netlink_unicast+0x449/0x710 [ 3045.640441][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.640441][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.640441][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.640441][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.640441][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.640441][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.640441][ T10] [ 3045.642665][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3045.642665][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.642665][ T10] ipv6_find_idev+0x102/0x170 [ 3045.642665][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.642665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.642665][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.642665][ T10] netlink_unicast+0x449/0x710 [ 3045.642665][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.642665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.642665][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.642665][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.642665][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.642665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.642665][ T10] [ 3045.644348][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3045.644348][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.644348][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.644348][ T10] ipv6_find_idev+0x102/0x170 [ 3045.644348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.644348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.644348][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.644348][ T10] netlink_unicast+0x449/0x710 [ 3045.644348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.644348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.644348][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.644348][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.644348][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.644348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.644348][ T10] [ 3045.646209][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3045.646498][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3045.646498][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.646498][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.646498][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.646498][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.646498][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.646498][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.646498][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.646498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.646498][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.646498][ T10] netlink_unicast+0x449/0x710 [ 3045.646498][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.646498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.646498][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.646498][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.646498][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.646498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.646498][ T10] [ 3045.648715][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3045.648715][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.648715][ T10] ipv6_find_idev+0x102/0x170 [ 3045.648715][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.648715][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.648715][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.648715][ T10] netlink_unicast+0x449/0x710 [ 3045.648715][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.648715][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.648715][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.648715][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.648715][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.648715][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.648715][ T10] [ 3045.650435][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3045.650435][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.650435][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.650435][ T10] ipv6_find_idev+0x102/0x170 [ 3045.650435][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.650435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.650435][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.650435][ T10] netlink_unicast+0x449/0x710 [ 3045.650435][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.650435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.650435][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.650435][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.650435][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.650435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.650435][ T10] [ 3045.652704][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3045.652991][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3045.652991][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.652991][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.652991][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.652991][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.652991][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.652991][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.652991][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.652991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.652991][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.652991][ T10] netlink_unicast+0x449/0x710 [ 3045.652991][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.652991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.652991][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.652991][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.652991][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.652991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.652991][ T10] [ 3045.655176][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3045.655176][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.655176][ T10] ipv6_find_idev+0x102/0x170 [ 3045.655176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.655176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.655176][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.655176][ T10] netlink_unicast+0x449/0x710 [ 3045.655176][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.655176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.655176][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.655176][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.655176][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.655176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.655176][ T10] [ 3045.656890][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3045.656890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.656890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.656890][ T10] ipv6_find_idev+0x102/0x170 [ 3045.656890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.656890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.656890][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.656890][ T10] netlink_unicast+0x449/0x710 [ 3045.656890][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.656890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.656890][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.656890][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.656890][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.656890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.656890][ T10] [ 3045.658792][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3045.659084][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3045.659084][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.659084][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.659084][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.659084][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.659084][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.659084][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.659084][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.659084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.659084][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.659084][ T10] netlink_unicast+0x449/0x710 [ 3045.659084][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.659084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.659084][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.659084][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.659084][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.659084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.659084][ T10] [ 3045.661416][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3045.661416][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.661416][ T10] ipv6_find_idev+0x102/0x170 [ 3045.661416][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.661416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.661416][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.661416][ T10] netlink_unicast+0x449/0x710 [ 3045.661416][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.661416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.661416][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.661416][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.661416][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.661416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.661416][ T10] [ 3045.663381][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3045.663381][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.663381][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.663381][ T10] ipv6_find_idev+0x102/0x170 [ 3045.663381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.663381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.663381][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.663381][ T10] netlink_unicast+0x449/0x710 [ 3045.663381][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.663381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.663381][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.663381][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.663381][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.663381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.663381][ T10] [ 3045.665491][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3045.665844][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3045.665844][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.665844][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.665844][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.665844][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.665844][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.665844][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.665844][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.665844][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.665844][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.665844][ T10] netlink_unicast+0x449/0x710 [ 3045.665844][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.665844][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.665844][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.665844][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.665844][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.665844][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.665844][ T10] [ 3045.668239][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3045.668239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.668239][ T10] ipv6_find_idev+0x102/0x170 [ 3045.668239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.668239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.668239][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.668239][ T10] netlink_unicast+0x449/0x710 [ 3045.668239][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.668239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.668239][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.668239][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.668239][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.668239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.668239][ T10] [ 3045.670103][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3045.670103][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.670103][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.670103][ T10] ipv6_find_idev+0x102/0x170 [ 3045.670103][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.670103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.670103][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.670103][ T10] netlink_unicast+0x449/0x710 [ 3045.670103][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.670103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.670103][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.670103][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.670103][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.670103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.670103][ T10] [ 3045.672231][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3045.672527][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3045.672527][ T10] netdev_get_by_index+0x5e/0x80 [ 3045.672527][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3045.672527][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3045.672527][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3045.672527][ T10] ipv6_add_addr+0x411/0x2000 [ 3045.672527][ T10] inet6_addr_add+0x30e/0xa40 [ 3045.672527][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3045.672527][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.672527][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.672527][ T10] netlink_unicast+0x449/0x710 [ 3045.672527][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.672527][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.672527][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.672527][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.672527][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.672527][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.672527][ T10] [ 3045.674961][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3045.674961][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3045.674961][ T10] ipv6_find_idev+0x102/0x170 [ 3045.674961][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.674961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.674961][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.674961][ T10] netlink_unicast+0x449/0x710 [ 3045.674961][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.674961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.674961][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.674961][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.674961][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.674961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.674961][ T10] [ 3045.676855][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3045.676855][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3045.676855][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3045.676855][ T10] ipv6_find_idev+0x102/0x170 [ 3045.676855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3045.676855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3045.676855][ T10] netlink_rcv_skb+0x130/0x360 [ 3045.676855][ T10] netlink_unicast+0x449/0x710 [ 3045.676855][ T10] netlink_sendmsg+0x723/0xbe0 [ 3045.676855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3045.676855][ T10] ___sys_sendmsg+0xee/0x170 [ 3045.676855][ T10] __sys_sendmsg+0xcd/0x170 [ 3045.676855][ T10] do_syscall_64+0xc6/0x1e0 [ 3045.676855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3045.676855][ T10] [ 3055.915778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3055.916199][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3055.916199][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.916199][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.916199][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.916199][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.916199][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.916199][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.916199][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.916199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.916199][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.916199][ T10] netlink_unicast+0x449/0x710 [ 3055.916199][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.916199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.916199][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.916199][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.916199][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.916199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.916199][ T10] [ 3055.918434][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3055.918434][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.918434][ T10] ipv6_find_idev+0x102/0x170 [ 3055.918434][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.918434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.918434][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.918434][ T10] netlink_unicast+0x449/0x710 [ 3055.918434][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.918434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.918434][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.918434][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.918434][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.918434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.918434][ T10] [ 3055.920110][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3055.920110][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.920110][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.920110][ T10] ipv6_find_idev+0x102/0x170 [ 3055.920110][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.920110][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.920110][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.920110][ T10] netlink_unicast+0x449/0x710 [ 3055.920110][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.920110][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.920110][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.920110][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.920110][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.920110][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.920110][ T10] [ 3055.922008][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3055.922296][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3055.922296][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.922296][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.922296][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.922296][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.922296][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.922296][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.922296][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.922296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.922296][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.922296][ T10] netlink_unicast+0x449/0x710 [ 3055.922296][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.922296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.922296][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.922296][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.922296][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.922296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.922296][ T10] [ 3055.924489][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3055.924489][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.924489][ T10] ipv6_find_idev+0x102/0x170 [ 3055.924489][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.924489][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.924489][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.924489][ T10] netlink_unicast+0x449/0x710 [ 3055.924489][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.924489][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.924489][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.924489][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.924489][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.924489][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.924489][ T10] [ 3055.926168][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3055.926168][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.926168][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.926168][ T10] ipv6_find_idev+0x102/0x170 [ 3055.926168][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.926168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.926168][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.926168][ T10] netlink_unicast+0x449/0x710 [ 3055.926168][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.926168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.926168][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.926168][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.926168][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.926168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.926168][ T10] [ 3055.928022][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3055.928307][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3055.928307][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.928307][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.928307][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.928307][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.928307][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.928307][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.928307][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.928307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.928307][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.928307][ T10] netlink_unicast+0x449/0x710 [ 3055.928307][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.928307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.928307][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.928307][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.928307][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.928307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.928307][ T10] [ 3055.930544][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3055.930544][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.930544][ T10] ipv6_find_idev+0x102/0x170 [ 3055.930544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.930544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.930544][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.930544][ T10] netlink_unicast+0x449/0x710 [ 3055.930544][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.930544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.930544][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.930544][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.930544][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.930544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.930544][ T10] [ 3055.932269][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3055.932269][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.932269][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.932269][ T10] ipv6_find_idev+0x102/0x170 [ 3055.932269][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.932269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.932269][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.932269][ T10] netlink_unicast+0x449/0x710 [ 3055.932269][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.932269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.932269][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.932269][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.932269][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.932269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.932269][ T10] [ 3055.934161][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3055.934461][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3055.934461][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.934461][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.934461][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.934461][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.934461][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.934461][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.934461][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.934461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.934461][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.934461][ T10] netlink_unicast+0x449/0x710 [ 3055.934461][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.934461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.934461][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.934461][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.934461][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.934461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.934461][ T10] [ 3055.936698][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3055.936698][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.936698][ T10] ipv6_find_idev+0x102/0x170 [ 3055.936698][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.936698][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.936698][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.936698][ T10] netlink_unicast+0x449/0x710 [ 3055.936698][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.936698][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.936698][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.936698][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.936698][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.936698][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.936698][ T10] [ 3055.938417][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3055.938417][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.938417][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.938417][ T10] ipv6_find_idev+0x102/0x170 [ 3055.938417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.938417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.938417][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.938417][ T10] netlink_unicast+0x449/0x710 [ 3055.938417][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.938417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.938417][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.938417][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.938417][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.938417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.938417][ T10] [ 3055.940669][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3055.940954][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3055.940954][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.940954][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.940954][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.940954][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.940954][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.940954][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.940954][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.940954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.940954][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.940954][ T10] netlink_unicast+0x449/0x710 [ 3055.940954][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.940954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.940954][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.940954][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.940954][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.940954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.940954][ T10] [ 3055.943182][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3055.943182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.943182][ T10] ipv6_find_idev+0x102/0x170 [ 3055.943182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.943182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.943182][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.943182][ T10] netlink_unicast+0x449/0x710 [ 3055.943182][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.943182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.943182][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.943182][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.943182][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.943182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.943182][ T10] [ 3055.944889][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3055.944889][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.944889][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.944889][ T10] ipv6_find_idev+0x102/0x170 [ 3055.944889][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.944889][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.944889][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.944889][ T10] netlink_unicast+0x449/0x710 [ 3055.944889][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.944889][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.944889][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.944889][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.944889][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.944889][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.944889][ T10] [ 3055.946797][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3055.947097][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3055.947097][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.947097][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.947097][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.947097][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.947097][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.947097][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.947097][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.947097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.947097][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.947097][ T10] netlink_unicast+0x449/0x710 [ 3055.947097][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.947097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.947097][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.947097][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.947097][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.947097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.947097][ T10] [ 3055.949388][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3055.949388][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.949388][ T10] ipv6_find_idev+0x102/0x170 [ 3055.949388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.949388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.949388][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.949388][ T10] netlink_unicast+0x449/0x710 [ 3055.949388][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.949388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.949388][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.949388][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.949388][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.949388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.949388][ T10] [ 3055.951331][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3055.951331][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.951331][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.951331][ T10] ipv6_find_idev+0x102/0x170 [ 3055.951331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.951331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.951331][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.951331][ T10] netlink_unicast+0x449/0x710 [ 3055.951331][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.951331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.951331][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.951331][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.951331][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.951331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.951331][ T10] [ 3055.953415][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3055.953749][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3055.953749][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.953749][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.953749][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.953749][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.953749][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.953749][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.953749][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.953749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.953749][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.953749][ T10] netlink_unicast+0x449/0x710 [ 3055.953749][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.953749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.953749][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.953749][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.953749][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.953749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.953749][ T10] [ 3055.956131][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3055.956131][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.956131][ T10] ipv6_find_idev+0x102/0x170 [ 3055.956131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.956131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.956131][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.956131][ T10] netlink_unicast+0x449/0x710 [ 3055.956131][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.956131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.956131][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.956131][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.956131][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.956131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.956131][ T10] [ 3055.958043][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3055.958043][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.958043][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.958043][ T10] ipv6_find_idev+0x102/0x170 [ 3055.958043][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.958043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.958043][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.958043][ T10] netlink_unicast+0x449/0x710 [ 3055.958043][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.958043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.958043][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.958043][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.958043][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.958043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.958043][ T10] [ 3055.960246][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3055.960547][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3055.960547][ T10] netdev_get_by_index+0x5e/0x80 [ 3055.960547][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3055.960547][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3055.960547][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3055.960547][ T10] ipv6_add_addr+0x411/0x2000 [ 3055.960547][ T10] inet6_addr_add+0x30e/0xa40 [ 3055.960547][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3055.960547][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.960547][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.960547][ T10] netlink_unicast+0x449/0x710 [ 3055.960547][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.960547][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.960547][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.960547][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.960547][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.960547][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.960547][ T10] [ 3055.963025][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3055.963025][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3055.963025][ T10] ipv6_find_idev+0x102/0x170 [ 3055.963025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.963025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.963025][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.963025][ T10] netlink_unicast+0x449/0x710 [ 3055.963025][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.963025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.963025][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.963025][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.963025][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.963025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.963025][ T10] [ 3055.964928][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3055.964928][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3055.964928][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3055.964928][ T10] ipv6_find_idev+0x102/0x170 [ 3055.964928][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3055.964928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3055.964928][ T10] netlink_rcv_skb+0x130/0x360 [ 3055.964928][ T10] netlink_unicast+0x449/0x710 [ 3055.964928][ T10] netlink_sendmsg+0x723/0xbe0 [ 3055.964928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3055.964928][ T10] ___sys_sendmsg+0xee/0x170 [ 3055.964928][ T10] __sys_sendmsg+0xcd/0x170 [ 3055.964928][ T10] do_syscall_64+0xc6/0x1e0 [ 3055.964928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3055.964928][ T10] [ 3066.203787][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3066.204323][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3066.204323][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.204323][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.204323][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.204323][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.204323][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.204323][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.204323][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.204323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.204323][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.204323][ T10] netlink_unicast+0x449/0x710 [ 3066.204323][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.204323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.204323][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.204323][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.204323][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.204323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.204323][ T10] [ 3066.206384][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3066.206384][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.206384][ T10] ipv6_find_idev+0x102/0x170 [ 3066.206384][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.206384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.206384][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.206384][ T10] netlink_unicast+0x449/0x710 [ 3066.206384][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.206384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.206384][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.206384][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.206384][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.206384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.206384][ T10] [ 3066.207963][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3066.207963][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.207963][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.207963][ T10] ipv6_find_idev+0x102/0x170 [ 3066.207963][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.207963][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.207963][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.207963][ T10] netlink_unicast+0x449/0x710 [ 3066.207963][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.207963][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.207963][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.207963][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.207963][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.207963][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.207963][ T10] [ 3066.209680][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3066.209964][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3066.209964][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.209964][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.209964][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.209964][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.209964][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.209964][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.209964][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.209964][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.209964][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.209964][ T10] netlink_unicast+0x449/0x710 [ 3066.209964][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.209964][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.209964][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.209964][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.209964][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.209964][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.209964][ T10] [ 3066.211968][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3066.211968][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.211968][ T10] ipv6_find_idev+0x102/0x170 [ 3066.211968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.211968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.211968][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.211968][ T10] netlink_unicast+0x449/0x710 [ 3066.211968][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.211968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.211968][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.211968][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.211968][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.211968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.211968][ T10] [ 3066.213525][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3066.213525][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.213525][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.213525][ T10] ipv6_find_idev+0x102/0x170 [ 3066.213525][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.213525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.213525][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.213525][ T10] netlink_unicast+0x449/0x710 [ 3066.213525][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.213525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.213525][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.213525][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.213525][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.213525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.213525][ T10] [ 3066.215231][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3066.215499][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3066.215499][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.215499][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.215499][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.215499][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.215499][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.215499][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.215499][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.215499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.215499][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.215499][ T10] netlink_unicast+0x449/0x710 [ 3066.215499][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.215499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.215499][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.215499][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.215499][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.215499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.215499][ T10] [ 3066.217506][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3066.217506][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.217506][ T10] ipv6_find_idev+0x102/0x170 [ 3066.217506][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.217506][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.217506][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.217506][ T10] netlink_unicast+0x449/0x710 [ 3066.217506][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.217506][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.217506][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.217506][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.217506][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.217506][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.217506][ T10] [ 3066.219061][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3066.219061][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.219061][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.219061][ T10] ipv6_find_idev+0x102/0x170 [ 3066.219061][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.219061][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.219061][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.219061][ T10] netlink_unicast+0x449/0x710 [ 3066.219061][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.219061][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.219061][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.219061][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.219061][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.219061][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.219061][ T10] [ 3066.220769][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3066.221030][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3066.221030][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.221030][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.221030][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.221030][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.221030][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.221030][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.221030][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.221030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.221030][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.221030][ T10] netlink_unicast+0x449/0x710 [ 3066.221030][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.221030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.221030][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.221030][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.221030][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.221030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.221030][ T10] [ 3066.223044][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3066.223044][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.223044][ T10] ipv6_find_idev+0x102/0x170 [ 3066.223044][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.223044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.223044][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.223044][ T10] netlink_unicast+0x449/0x710 [ 3066.223044][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.223044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.223044][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.223044][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.223044][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.223044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.223044][ T10] [ 3066.224587][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3066.224587][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.224587][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.224587][ T10] ipv6_find_idev+0x102/0x170 [ 3066.224587][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.224587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.224587][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.224587][ T10] netlink_unicast+0x449/0x710 [ 3066.224587][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.224587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.224587][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.224587][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.224587][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.224587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.224587][ T10] [ 3066.226712][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3066.226976][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3066.226976][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.226976][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.226976][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.226976][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.226976][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.226976][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.226976][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.226976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.226976][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.226976][ T10] netlink_unicast+0x449/0x710 [ 3066.226976][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.226976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.226976][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.226976][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.226976][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.226976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.226976][ T10] [ 3066.228993][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3066.228993][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.228993][ T10] ipv6_find_idev+0x102/0x170 [ 3066.228993][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.228993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.228993][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.228993][ T10] netlink_unicast+0x449/0x710 [ 3066.228993][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.228993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.228993][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.228993][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.228993][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.228993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.228993][ T10] [ 3066.230537][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3066.230537][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.230537][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.230537][ T10] ipv6_find_idev+0x102/0x170 [ 3066.230537][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.230537][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.230537][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.230537][ T10] netlink_unicast+0x449/0x710 [ 3066.230537][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.230537][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.230537][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.230537][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.230537][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.230537][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.230537][ T10] [ 3066.232285][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3066.232572][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3066.232572][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.232572][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.232572][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.232572][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.232572][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.232572][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.232572][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.232572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.232572][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.232572][ T10] netlink_unicast+0x449/0x710 [ 3066.232572][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.232572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.232572][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.232572][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.232572][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.232572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.232572][ T10] [ 3066.234703][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3066.234703][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.234703][ T10] ipv6_find_idev+0x102/0x170 [ 3066.234703][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.234703][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.234703][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.234703][ T10] netlink_unicast+0x449/0x710 [ 3066.234703][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.234703][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.234703][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.234703][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.234703][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.234703][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.234703][ T10] [ 3066.236446][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3066.236446][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.236446][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.236446][ T10] ipv6_find_idev+0x102/0x170 [ 3066.236446][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.236446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.236446][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.236446][ T10] netlink_unicast+0x449/0x710 [ 3066.236446][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.236446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.236446][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.236446][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.236446][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.236446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.236446][ T10] [ 3066.238470][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3066.238790][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3066.238790][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.238790][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.238790][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.238790][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.238790][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.238790][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.238790][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.238790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.238790][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.238790][ T10] netlink_unicast+0x449/0x710 [ 3066.238790][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.238790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.238790][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.238790][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.238790][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.238790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.238790][ T10] [ 3066.240983][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3066.240983][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.240983][ T10] ipv6_find_idev+0x102/0x170 [ 3066.240983][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.240983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.240983][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.240983][ T10] netlink_unicast+0x449/0x710 [ 3066.240983][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.240983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.240983][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.240983][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.240983][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.240983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.240983][ T10] [ 3066.242709][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3066.242709][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.242709][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.242709][ T10] ipv6_find_idev+0x102/0x170 [ 3066.242709][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.242709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.242709][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.242709][ T10] netlink_unicast+0x449/0x710 [ 3066.242709][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.242709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.242709][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.242709][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.242709][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.242709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.242709][ T10] [ 3066.244611][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3066.244941][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3066.244941][ T10] netdev_get_by_index+0x5e/0x80 [ 3066.244941][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3066.244941][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3066.244941][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3066.244941][ T10] ipv6_add_addr+0x411/0x2000 [ 3066.244941][ T10] inet6_addr_add+0x30e/0xa40 [ 3066.244941][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3066.244941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.244941][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.244941][ T10] netlink_unicast+0x449/0x710 [ 3066.244941][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.244941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.244941][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.244941][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.244941][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.244941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.244941][ T10] [ 3066.247136][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3066.247136][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3066.247136][ T10] ipv6_find_idev+0x102/0x170 [ 3066.247136][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.247136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.247136][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.247136][ T10] netlink_unicast+0x449/0x710 [ 3066.247136][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.247136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.247136][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.247136][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.247136][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.247136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.247136][ T10] [ 3066.248929][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3066.248929][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3066.248929][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3066.248929][ T10] ipv6_find_idev+0x102/0x170 [ 3066.248929][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3066.248929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3066.248929][ T10] netlink_rcv_skb+0x130/0x360 [ 3066.248929][ T10] netlink_unicast+0x449/0x710 [ 3066.248929][ T10] netlink_sendmsg+0x723/0xbe0 [ 3066.248929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3066.248929][ T10] ___sys_sendmsg+0xee/0x170 [ 3066.248929][ T10] __sys_sendmsg+0xcd/0x170 [ 3066.248929][ T10] do_syscall_64+0xc6/0x1e0 [ 3066.248929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3066.248929][ T10] [ 3076.491768][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3076.492287][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3076.492287][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.492287][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.492287][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.492287][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.492287][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.492287][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.492287][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.492287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.492287][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.492287][ T10] netlink_unicast+0x449/0x710 [ 3076.492287][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.492287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.492287][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.492287][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.492287][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.492287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.492287][ T10] [ 3076.494326][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3076.494326][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.494326][ T10] ipv6_find_idev+0x102/0x170 [ 3076.494326][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.494326][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.494326][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.494326][ T10] netlink_unicast+0x449/0x710 [ 3076.494326][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.494326][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.494326][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.494326][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.494326][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.494326][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.494326][ T10] [ 3076.495889][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3076.495889][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.495889][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.495889][ T10] ipv6_find_idev+0x102/0x170 [ 3076.495889][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.495889][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.495889][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.495889][ T10] netlink_unicast+0x449/0x710 [ 3076.495889][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.495889][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.495889][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.495889][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.495889][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.495889][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.495889][ T10] [ 3076.497606][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3076.497895][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3076.497895][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.497895][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.497895][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.497895][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.497895][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.497895][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.497895][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.497895][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.497895][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.497895][ T10] netlink_unicast+0x449/0x710 [ 3076.497895][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.497895][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.497895][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.497895][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.497895][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.497895][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.497895][ T10] [ 3076.499916][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3076.499916][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.499916][ T10] ipv6_find_idev+0x102/0x170 [ 3076.499916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.499916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.499916][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.499916][ T10] netlink_unicast+0x449/0x710 [ 3076.499916][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.499916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.499916][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.499916][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.499916][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.499916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.499916][ T10] [ 3076.501482][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3076.501482][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.501482][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.501482][ T10] ipv6_find_idev+0x102/0x170 [ 3076.501482][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.501482][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.501482][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.501482][ T10] netlink_unicast+0x449/0x710 [ 3076.501482][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.501482][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.501482][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.501482][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.501482][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.501482][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.501482][ T10] [ 3076.503189][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3076.503476][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3076.503476][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.503476][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.503476][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.503476][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.503476][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.503476][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.503476][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.503476][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.503476][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.503476][ T10] netlink_unicast+0x449/0x710 [ 3076.503476][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.503476][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.503476][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.503476][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.503476][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.503476][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.503476][ T10] [ 3076.505482][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3076.505482][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.505482][ T10] ipv6_find_idev+0x102/0x170 [ 3076.505482][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.505482][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.505482][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.505482][ T10] netlink_unicast+0x449/0x710 [ 3076.505482][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.505482][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.505482][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.505482][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.505482][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.505482][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.505482][ T10] [ 3076.507059][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3076.507059][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.507059][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.507059][ T10] ipv6_find_idev+0x102/0x170 [ 3076.507059][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.507059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.507059][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.507059][ T10] netlink_unicast+0x449/0x710 [ 3076.507059][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.507059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.507059][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.507059][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.507059][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.507059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.507059][ T10] [ 3076.508763][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3076.509030][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3076.509030][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.509030][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.509030][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.509030][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.509030][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.509030][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.509030][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.509030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.509030][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.509030][ T10] netlink_unicast+0x449/0x710 [ 3076.509030][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.509030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.509030][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.509030][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.509030][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.509030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.509030][ T10] [ 3076.511038][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3076.511038][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.511038][ T10] ipv6_find_idev+0x102/0x170 [ 3076.511038][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.511038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.511038][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.511038][ T10] netlink_unicast+0x449/0x710 [ 3076.511038][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.511038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.511038][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.511038][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.511038][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.511038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.511038][ T10] [ 3076.512591][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3076.512591][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.512591][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.512591][ T10] ipv6_find_idev+0x102/0x170 [ 3076.512591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.512591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.512591][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.512591][ T10] netlink_unicast+0x449/0x710 [ 3076.512591][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.512591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.512591][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.512591][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.512591][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.512591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.512591][ T10] [ 3076.514696][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3076.514962][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3076.514962][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.514962][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.514962][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.514962][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.514962][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.514962][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.514962][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.514962][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.514962][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.514962][ T10] netlink_unicast+0x449/0x710 [ 3076.514962][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.514962][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.514962][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.514962][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.514962][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.514962][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.514962][ T10] [ 3076.516966][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3076.516966][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.516966][ T10] ipv6_find_idev+0x102/0x170 [ 3076.516966][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.516966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.516966][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.516966][ T10] netlink_unicast+0x449/0x710 [ 3076.516966][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.516966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.516966][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.516966][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.516966][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.516966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.516966][ T10] [ 3076.518525][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3076.518525][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.518525][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.518525][ T10] ipv6_find_idev+0x102/0x170 [ 3076.518525][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.518525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.518525][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.518525][ T10] netlink_unicast+0x449/0x710 [ 3076.518525][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.518525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.518525][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.518525][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.518525][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.518525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.518525][ T10] [ 3076.520266][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3076.520528][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3076.520528][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.520528][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.520528][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.520528][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.520528][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.520528][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.520528][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.520528][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.520528][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.520528][ T10] netlink_unicast+0x449/0x710 [ 3076.520528][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.520528][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.520528][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.520528][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.520528][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.520528][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.520528][ T10] [ 3076.522671][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3076.522671][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.522671][ T10] ipv6_find_idev+0x102/0x170 [ 3076.522671][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.522671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.522671][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.522671][ T10] netlink_unicast+0x449/0x710 [ 3076.522671][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.522671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.522671][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.522671][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.522671][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.522671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.522671][ T10] [ 3076.524406][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3076.524406][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.524406][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.524406][ T10] ipv6_find_idev+0x102/0x170 [ 3076.524406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.524406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.524406][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.524406][ T10] netlink_unicast+0x449/0x710 [ 3076.524406][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.524406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.524406][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.524406][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.524406][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.524406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.524406][ T10] [ 3076.526446][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3076.526779][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3076.526779][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.526779][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.526779][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.526779][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.526779][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.526779][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.526779][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.526779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.526779][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.526779][ T10] netlink_unicast+0x449/0x710 [ 3076.526779][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.526779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.526779][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.526779][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.526779][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.526779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.526779][ T10] [ 3076.528954][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3076.528954][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.528954][ T10] ipv6_find_idev+0x102/0x170 [ 3076.528954][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.528954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.528954][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.528954][ T10] netlink_unicast+0x449/0x710 [ 3076.528954][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.528954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.528954][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.528954][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.528954][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.528954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.528954][ T10] [ 3076.530667][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3076.530667][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.530667][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.530667][ T10] ipv6_find_idev+0x102/0x170 [ 3076.530667][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.530667][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.530667][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.530667][ T10] netlink_unicast+0x449/0x710 [ 3076.530667][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.530667][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.530667][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.530667][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.530667][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.530667][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.530667][ T10] [ 3076.532540][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3076.532877][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3076.532877][ T10] netdev_get_by_index+0x5e/0x80 [ 3076.532877][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3076.532877][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3076.532877][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3076.532877][ T10] ipv6_add_addr+0x411/0x2000 [ 3076.532877][ T10] inet6_addr_add+0x30e/0xa40 [ 3076.532877][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3076.532877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.532877][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.532877][ T10] netlink_unicast+0x449/0x710 [ 3076.532877][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.532877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.532877][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.532877][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.532877][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.532877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.532877][ T10] [ 3076.534953][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3076.534953][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3076.534953][ T10] ipv6_find_idev+0x102/0x170 [ 3076.534953][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.534953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.534953][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.534953][ T10] netlink_unicast+0x449/0x710 [ 3076.534953][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.534953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.534953][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.534953][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.534953][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.534953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.534953][ T10] [ 3076.536670][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3076.536670][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3076.536670][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3076.536670][ T10] ipv6_find_idev+0x102/0x170 [ 3076.536670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3076.536670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3076.536670][ T10] netlink_rcv_skb+0x130/0x360 [ 3076.536670][ T10] netlink_unicast+0x449/0x710 [ 3076.536670][ T10] netlink_sendmsg+0x723/0xbe0 [ 3076.536670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3076.536670][ T10] ___sys_sendmsg+0xee/0x170 [ 3076.536670][ T10] __sys_sendmsg+0xcd/0x170 [ 3076.536670][ T10] do_syscall_64+0xc6/0x1e0 [ 3076.536670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3076.536670][ T10] [ 3086.587788][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3086.588213][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3086.588213][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.588213][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.588213][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.588213][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.588213][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.588213][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.588213][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.588213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.588213][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.588213][ T10] netlink_unicast+0x449/0x710 [ 3086.588213][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.588213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.588213][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.588213][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.588213][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.588213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.588213][ T10] [ 3086.590348][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3086.590348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.590348][ T10] ipv6_find_idev+0x102/0x170 [ 3086.590348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.590348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.590348][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.590348][ T10] netlink_unicast+0x449/0x710 [ 3086.590348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.590348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.590348][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.590348][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.590348][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.590348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.590348][ T10] [ 3086.592006][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3086.592006][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.592006][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.592006][ T10] ipv6_find_idev+0x102/0x170 [ 3086.592006][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.592006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.592006][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.592006][ T10] netlink_unicast+0x449/0x710 [ 3086.592006][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.592006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.592006][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.592006][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.592006][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.592006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.592006][ T10] [ 3086.593747][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3086.594033][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3086.594033][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.594033][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.594033][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.594033][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.594033][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.594033][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.594033][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.594033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.594033][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.594033][ T10] netlink_unicast+0x449/0x710 [ 3086.594033][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.594033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.594033][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.594033][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.594033][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.594033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.594033][ T10] [ 3086.596111][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3086.596111][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.596111][ T10] ipv6_find_idev+0x102/0x170 [ 3086.596111][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.596111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.596111][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.596111][ T10] netlink_unicast+0x449/0x710 [ 3086.596111][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.596111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.596111][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.596111][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.596111][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.596111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.596111][ T10] [ 3086.597704][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3086.597704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.597704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.597704][ T10] ipv6_find_idev+0x102/0x170 [ 3086.597704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.597704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.597704][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.597704][ T10] netlink_unicast+0x449/0x710 [ 3086.597704][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.597704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.597704][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.597704][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.597704][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.597704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.597704][ T10] [ 3086.599420][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3086.599713][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3086.599713][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.599713][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.599713][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.599713][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.599713][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.599713][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.599713][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.599713][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.599713][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.599713][ T10] netlink_unicast+0x449/0x710 [ 3086.599713][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.599713][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.599713][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.599713][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.599713][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.599713][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.599713][ T10] [ 3086.601760][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3086.601760][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.601760][ T10] ipv6_find_idev+0x102/0x170 [ 3086.601760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.601760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.601760][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.601760][ T10] netlink_unicast+0x449/0x710 [ 3086.601760][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.601760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.601760][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.601760][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.601760][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.601760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.601760][ T10] [ 3086.603334][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3086.603334][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.603334][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.603334][ T10] ipv6_find_idev+0x102/0x170 [ 3086.603334][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.603334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.603334][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.603334][ T10] netlink_unicast+0x449/0x710 [ 3086.603334][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.603334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.603334][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.603334][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.603334][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.603334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.603334][ T10] [ 3086.605073][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3086.605342][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3086.605342][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.605342][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.605342][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.605342][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.605342][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.605342][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.605342][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.605342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.605342][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.605342][ T10] netlink_unicast+0x449/0x710 [ 3086.605342][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.605342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.605342][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.605342][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.605342][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.605342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.605342][ T10] [ 3086.607420][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3086.607420][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.607420][ T10] ipv6_find_idev+0x102/0x170 [ 3086.607420][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.607420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.607420][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.607420][ T10] netlink_unicast+0x449/0x710 [ 3086.607420][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.607420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.607420][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.607420][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.607420][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.607420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.607420][ T10] [ 3086.609005][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3086.609005][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.609005][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.609005][ T10] ipv6_find_idev+0x102/0x170 [ 3086.609005][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.609005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.609005][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.609005][ T10] netlink_unicast+0x449/0x710 [ 3086.609005][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.609005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.609005][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.609005][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.609005][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.609005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.609005][ T10] [ 3086.611180][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3086.611456][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3086.611456][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.611456][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.611456][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.611456][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.611456][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.611456][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.611456][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.611456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.611456][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.611456][ T10] netlink_unicast+0x449/0x710 [ 3086.611456][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.611456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.611456][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.611456][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.611456][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.611456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.611456][ T10] [ 3086.613498][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3086.613498][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.613498][ T10] ipv6_find_idev+0x102/0x170 [ 3086.613498][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.613498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.613498][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.613498][ T10] netlink_unicast+0x449/0x710 [ 3086.613498][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.613498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.613498][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.613498][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.613498][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.613498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.613498][ T10] [ 3086.615068][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3086.615068][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.615068][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.615068][ T10] ipv6_find_idev+0x102/0x170 [ 3086.615068][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.615068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.615068][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.615068][ T10] netlink_unicast+0x449/0x710 [ 3086.615068][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.615068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.615068][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.615068][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.615068][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.615068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.615068][ T10] [ 3086.616858][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3086.617134][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3086.617134][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.617134][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.617134][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.617134][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.617134][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.617134][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.617134][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.617134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.617134][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.617134][ T10] netlink_unicast+0x449/0x710 [ 3086.617134][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.617134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.617134][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.617134][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.617134][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.617134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.617134][ T10] [ 3086.619373][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3086.619373][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.619373][ T10] ipv6_find_idev+0x102/0x170 [ 3086.619373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.619373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.619373][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.619373][ T10] netlink_unicast+0x449/0x710 [ 3086.619373][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.619373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.619373][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.619373][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.619373][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.619373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.619373][ T10] [ 3086.621065][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3086.621065][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.621065][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.621065][ T10] ipv6_find_idev+0x102/0x170 [ 3086.621065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.621065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.621065][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.621065][ T10] netlink_unicast+0x449/0x710 [ 3086.621065][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.621065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.621065][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.621065][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.621065][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.621065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.621065][ T10] [ 3086.623080][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3086.623346][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3086.623346][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.623346][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.623346][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.623346][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.623346][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.623346][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.623346][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.623346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.623346][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.623346][ T10] netlink_unicast+0x449/0x710 [ 3086.623346][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.623346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.623346][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.623346][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.623346][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.623346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.623346][ T10] [ 3086.625621][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3086.625621][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.625621][ T10] ipv6_find_idev+0x102/0x170 [ 3086.625621][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.625621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.625621][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.625621][ T10] netlink_unicast+0x449/0x710 [ 3086.625621][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.625621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.625621][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.625621][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.625621][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.625621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.625621][ T10] [ 3086.627380][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3086.627380][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.627380][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.627380][ T10] ipv6_find_idev+0x102/0x170 [ 3086.627380][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.627380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.627380][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.627380][ T10] netlink_unicast+0x449/0x710 [ 3086.627380][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.627380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.627380][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.627380][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.627380][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.627380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.627380][ T10] [ 3086.629385][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3086.629662][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3086.629662][ T10] netdev_get_by_index+0x5e/0x80 [ 3086.629662][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3086.629662][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3086.629662][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3086.629662][ T10] ipv6_add_addr+0x411/0x2000 [ 3086.629662][ T10] inet6_addr_add+0x30e/0xa40 [ 3086.629662][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3086.629662][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.629662][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.629662][ T10] netlink_unicast+0x449/0x710 [ 3086.629662][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.629662][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.629662][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.629662][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.629662][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.629662][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.629662][ T10] [ 3086.631893][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3086.631893][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3086.631893][ T10] ipv6_find_idev+0x102/0x170 [ 3086.631893][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.631893][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.631893][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.631893][ T10] netlink_unicast+0x449/0x710 [ 3086.631893][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.631893][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.631893][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.631893][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.631893][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.631893][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.631893][ T10] [ 3086.633675][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3086.633675][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3086.633675][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3086.633675][ T10] ipv6_find_idev+0x102/0x170 [ 3086.633675][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3086.633675][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3086.633675][ T10] netlink_rcv_skb+0x130/0x360 [ 3086.633675][ T10] netlink_unicast+0x449/0x710 [ 3086.633675][ T10] netlink_sendmsg+0x723/0xbe0 [ 3086.633675][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3086.633675][ T10] ___sys_sendmsg+0xee/0x170 [ 3086.633675][ T10] __sys_sendmsg+0xcd/0x170 [ 3086.633675][ T10] do_syscall_64+0xc6/0x1e0 [ 3086.633675][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3086.633675][ T10] [ 3096.803756][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3096.804269][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3096.804269][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.804269][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.804269][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.804269][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.804269][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.804269][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.804269][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.804269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.804269][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.804269][ T10] netlink_unicast+0x449/0x710 [ 3096.804269][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.804269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.804269][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.804269][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.804269][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.804269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.804269][ T10] [ 3096.806534][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3096.806534][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.806534][ T10] ipv6_find_idev+0x102/0x170 [ 3096.806534][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.806534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.806534][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.806534][ T10] netlink_unicast+0x449/0x710 [ 3096.806534][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.806534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.806534][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.806534][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.806534][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.806534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.806534][ T10] [ 3096.808281][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3096.808281][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.808281][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.808281][ T10] ipv6_find_idev+0x102/0x170 [ 3096.808281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.808281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.808281][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.808281][ T10] netlink_unicast+0x449/0x710 [ 3096.808281][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.808281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.808281][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.808281][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.808281][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.808281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.808281][ T10] [ 3096.810172][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3096.810498][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3096.810498][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.810498][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.810498][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.810498][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.810498][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.810498][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.810498][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.810498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.810498][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.810498][ T10] netlink_unicast+0x449/0x710 [ 3096.810498][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.810498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.810498][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.810498][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.810498][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.810498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.810498][ T10] [ 3096.812711][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3096.812711][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.812711][ T10] ipv6_find_idev+0x102/0x170 [ 3096.812711][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.812711][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.812711][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.812711][ T10] netlink_unicast+0x449/0x710 [ 3096.812711][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.812711][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.812711][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.812711][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.812711][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.812711][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.812711][ T10] [ 3096.814446][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3096.814446][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.814446][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.814446][ T10] ipv6_find_idev+0x102/0x170 [ 3096.814446][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.814446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.814446][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.814446][ T10] netlink_unicast+0x449/0x710 [ 3096.814446][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.814446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.814446][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.814446][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.814446][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.814446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.814446][ T10] [ 3096.816381][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3096.816686][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3096.816686][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.816686][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.816686][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.816686][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.816686][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.816686][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.816686][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.816686][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.816686][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.816686][ T10] netlink_unicast+0x449/0x710 [ 3096.816686][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.816686][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.816686][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.816686][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.816686][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.816686][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.816686][ T10] [ 3096.818973][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3096.818973][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.818973][ T10] ipv6_find_idev+0x102/0x170 [ 3096.818973][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.818973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.818973][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.818973][ T10] netlink_unicast+0x449/0x710 [ 3096.818973][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.818973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.818973][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.818973][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.818973][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.818973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.818973][ T10] [ 3096.820651][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3096.820651][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.820651][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.820651][ T10] ipv6_find_idev+0x102/0x170 [ 3096.820651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.820651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.820651][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.820651][ T10] netlink_unicast+0x449/0x710 [ 3096.820651][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.820651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.820651][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.820651][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.820651][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.820651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.820651][ T10] [ 3096.822530][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3096.822848][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3096.822848][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.822848][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.822848][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.822848][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.822848][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.822848][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.822848][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.822848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.822848][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.822848][ T10] netlink_unicast+0x449/0x710 [ 3096.822848][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.822848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.822848][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.822848][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.822848][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.822848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.822848][ T10] [ 3096.825079][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3096.825079][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.825079][ T10] ipv6_find_idev+0x102/0x170 [ 3096.825079][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.825079][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.825079][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.825079][ T10] netlink_unicast+0x449/0x710 [ 3096.825079][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.825079][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.825079][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.825079][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.825079][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.825079][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.825079][ T10] [ 3096.826823][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3096.826823][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.826823][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.826823][ T10] ipv6_find_idev+0x102/0x170 [ 3096.826823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.826823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.826823][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.826823][ T10] netlink_unicast+0x449/0x710 [ 3096.826823][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.826823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.826823][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.826823][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.826823][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.826823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.826823][ T10] [ 3096.828734][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3096.829032][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3096.829032][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.829032][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.829032][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.829032][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.829032][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.829032][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.829032][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.829032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.829032][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.829032][ T10] netlink_unicast+0x449/0x710 [ 3096.829032][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.829032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.829032][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.829032][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.829032][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.829032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.829032][ T10] [ 3096.831222][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3096.831222][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.831222][ T10] ipv6_find_idev+0x102/0x170 [ 3096.831222][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.831222][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.831222][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.831222][ T10] netlink_unicast+0x449/0x710 [ 3096.831222][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.831222][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.831222][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.831222][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.831222][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.831222][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.831222][ T10] [ 3096.832969][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3096.832969][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.832969][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.832969][ T10] ipv6_find_idev+0x102/0x170 [ 3096.832969][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.832969][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.832969][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.832969][ T10] netlink_unicast+0x449/0x710 [ 3096.832969][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.832969][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.832969][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.832969][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.832969][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.832969][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.832969][ T10] [ 3096.835055][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3096.835345][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3096.835345][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.835345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.835345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.835345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.835345][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.835345][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.835345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.835345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.835345][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.835345][ T10] netlink_unicast+0x449/0x710 [ 3096.835345][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.835345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.835345][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.835345][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.835345][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.835345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.835345][ T10] [ 3096.837875][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3096.837875][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.837875][ T10] ipv6_find_idev+0x102/0x170 [ 3096.837875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.837875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.837875][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.837875][ T10] netlink_unicast+0x449/0x710 [ 3096.837875][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.837875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.837875][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.837875][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.837875][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.837875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.837875][ T10] [ 3096.839834][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3096.839834][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.839834][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.839834][ T10] ipv6_find_idev+0x102/0x170 [ 3096.839834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.839834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.839834][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.839834][ T10] netlink_unicast+0x449/0x710 [ 3096.839834][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.839834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.839834][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.839834][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.839834][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.839834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.839834][ T10] [ 3096.841906][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3096.842205][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3096.842205][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.842205][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.842205][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.842205][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.842205][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.842205][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.842205][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.842205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.842205][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.842205][ T10] netlink_unicast+0x449/0x710 [ 3096.842205][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.842205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.842205][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.842205][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.842205][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.842205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.842205][ T10] [ 3096.844605][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3096.844605][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.844605][ T10] ipv6_find_idev+0x102/0x170 [ 3096.844605][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.844605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.844605][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.844605][ T10] netlink_unicast+0x449/0x710 [ 3096.844605][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.844605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.844605][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.844605][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.844605][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.844605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.844605][ T10] [ 3096.846458][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3096.846458][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.846458][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.846458][ T10] ipv6_find_idev+0x102/0x170 [ 3096.846458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.846458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.846458][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.846458][ T10] netlink_unicast+0x449/0x710 [ 3096.846458][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.846458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.846458][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.846458][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.846458][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.846458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.846458][ T10] [ 3096.848632][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3096.848973][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3096.848973][ T10] netdev_get_by_index+0x5e/0x80 [ 3096.848973][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3096.848973][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3096.848973][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3096.848973][ T10] ipv6_add_addr+0x411/0x2000 [ 3096.848973][ T10] inet6_addr_add+0x30e/0xa40 [ 3096.848973][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3096.848973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.848973][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.848973][ T10] netlink_unicast+0x449/0x710 [ 3096.848973][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.848973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.848973][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.848973][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.848973][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.848973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.848973][ T10] [ 3096.851401][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3096.851401][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3096.851401][ T10] ipv6_find_idev+0x102/0x170 [ 3096.851401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.851401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.851401][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.851401][ T10] netlink_unicast+0x449/0x710 [ 3096.851401][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.851401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.851401][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.851401][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.851401][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.851401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.851401][ T10] [ 3096.853280][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3096.853280][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3096.853280][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3096.853280][ T10] ipv6_find_idev+0x102/0x170 [ 3096.853280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3096.853280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3096.853280][ T10] netlink_rcv_skb+0x130/0x360 [ 3096.853280][ T10] netlink_unicast+0x449/0x710 [ 3096.853280][ T10] netlink_sendmsg+0x723/0xbe0 [ 3096.853280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3096.853280][ T10] ___sys_sendmsg+0xee/0x170 [ 3096.853280][ T10] __sys_sendmsg+0xcd/0x170 [ 3096.853280][ T10] do_syscall_64+0xc6/0x1e0 [ 3096.853280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3096.853280][ T10] [ 3107.107775][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3107.108197][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3107.108197][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.108197][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.108197][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.108197][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.108197][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.108197][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.108197][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.108197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.108197][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.108197][ T10] netlink_unicast+0x449/0x710 [ 3107.108197][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.108197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.108197][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.108197][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.108197][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.108197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.108197][ T10] [ 3107.110457][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3107.110457][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.110457][ T10] ipv6_find_idev+0x102/0x170 [ 3107.110457][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.110457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.110457][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.110457][ T10] netlink_unicast+0x449/0x710 [ 3107.110457][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.110457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.110457][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.110457][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.110457][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.110457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.110457][ T10] [ 3107.112144][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3107.112144][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.112144][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.112144][ T10] ipv6_find_idev+0x102/0x170 [ 3107.112144][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.112144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.112144][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.112144][ T10] netlink_unicast+0x449/0x710 [ 3107.112144][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.112144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.112144][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.112144][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.112144][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.112144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.112144][ T10] [ 3107.113980][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3107.114266][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3107.114266][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.114266][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.114266][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.114266][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.114266][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.114266][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.114266][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.114266][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.114266][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.114266][ T10] netlink_unicast+0x449/0x710 [ 3107.114266][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.114266][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.114266][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.114266][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.114266][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.114266][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.114266][ T10] [ 3107.116503][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3107.116503][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.116503][ T10] ipv6_find_idev+0x102/0x170 [ 3107.116503][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.116503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.116503][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.116503][ T10] netlink_unicast+0x449/0x710 [ 3107.116503][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.116503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.116503][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.116503][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.116503][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.116503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.116503][ T10] [ 3107.118244][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3107.118244][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.118244][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.118244][ T10] ipv6_find_idev+0x102/0x170 [ 3107.118244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.118244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.118244][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.118244][ T10] netlink_unicast+0x449/0x710 [ 3107.118244][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.118244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.118244][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.118244][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.118244][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.118244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.118244][ T10] [ 3107.120091][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3107.120380][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3107.120380][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.120380][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.120380][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.120380][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.120380][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.120380][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.120380][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.120380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.120380][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.120380][ T10] netlink_unicast+0x449/0x710 [ 3107.120380][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.120380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.120380][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.120380][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.120380][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.120380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.120380][ T10] [ 3107.122586][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3107.122586][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.122586][ T10] ipv6_find_idev+0x102/0x170 [ 3107.122586][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.122586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.122586][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.122586][ T10] netlink_unicast+0x449/0x710 [ 3107.122586][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.122586][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.122586][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.122586][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.122586][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.122586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.122586][ T10] [ 3107.124268][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3107.124268][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.124268][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.124268][ T10] ipv6_find_idev+0x102/0x170 [ 3107.124268][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.124268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.124268][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.124268][ T10] netlink_unicast+0x449/0x710 [ 3107.124268][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.124268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.124268][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.124268][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.124268][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.124268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.124268][ T10] [ 3107.126214][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3107.126511][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3107.126511][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.126511][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.126511][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.126511][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.126511][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.126511][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.126511][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.126511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.126511][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.126511][ T10] netlink_unicast+0x449/0x710 [ 3107.126511][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.126511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.126511][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.126511][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.126511][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.126511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.126511][ T10] [ 3107.128766][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3107.128766][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.128766][ T10] ipv6_find_idev+0x102/0x170 [ 3107.128766][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.128766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.128766][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.128766][ T10] netlink_unicast+0x449/0x710 [ 3107.128766][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.128766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.128766][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.128766][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.128766][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.128766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.128766][ T10] [ 3107.130453][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3107.130453][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.130453][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.130453][ T10] ipv6_find_idev+0x102/0x170 [ 3107.130453][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.130453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.130453][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.130453][ T10] netlink_unicast+0x449/0x710 [ 3107.130453][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.130453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.130453][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.130453][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.130453][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.130453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.130453][ T10] [ 3107.132710][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3107.132993][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3107.132993][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.132993][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.132993][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.132993][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.132993][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.132993][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.132993][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.132993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.132993][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.132993][ T10] netlink_unicast+0x449/0x710 [ 3107.132993][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.132993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.132993][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.132993][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.132993][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.132993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.132993][ T10] [ 3107.135187][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3107.135187][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.135187][ T10] ipv6_find_idev+0x102/0x170 [ 3107.135187][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.135187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.135187][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.135187][ T10] netlink_unicast+0x449/0x710 [ 3107.135187][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.135187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.135187][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.135187][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.135187][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.135187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.135187][ T10] [ 3107.136897][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3107.136897][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.136897][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.136897][ T10] ipv6_find_idev+0x102/0x170 [ 3107.136897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.136897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.136897][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.136897][ T10] netlink_unicast+0x449/0x710 [ 3107.136897][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.136897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.136897][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.136897][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.136897][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.136897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.136897][ T10] [ 3107.138805][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3107.139099][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3107.139099][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.139099][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.139099][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.139099][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.139099][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.139099][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.139099][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.139099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.139099][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.139099][ T10] netlink_unicast+0x449/0x710 [ 3107.139099][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.139099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.139099][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.139099][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.139099][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.139099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.139099][ T10] [ 3107.141454][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3107.141454][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.141454][ T10] ipv6_find_idev+0x102/0x170 [ 3107.141454][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.141454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.141454][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.141454][ T10] netlink_unicast+0x449/0x710 [ 3107.141454][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.141454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.141454][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.141454][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.141454][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.141454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.141454][ T10] [ 3107.143320][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3107.143320][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.143320][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.143320][ T10] ipv6_find_idev+0x102/0x170 [ 3107.143320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.143320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.143320][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.143320][ T10] netlink_unicast+0x449/0x710 [ 3107.143320][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.143320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.143320][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.143320][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.143320][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.143320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.143320][ T10] [ 3107.145405][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3107.145752][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3107.145752][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.145752][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.145752][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.145752][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.145752][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.145752][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.145752][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.145752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.145752][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.145752][ T10] netlink_unicast+0x449/0x710 [ 3107.145752][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.145752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.145752][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.145752][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.145752][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.145752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.145752][ T10] [ 3107.148239][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3107.148239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.148239][ T10] ipv6_find_idev+0x102/0x170 [ 3107.148239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.148239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.148239][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.148239][ T10] netlink_unicast+0x449/0x710 [ 3107.148239][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.148239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.148239][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.148239][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.148239][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.148239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.148239][ T10] [ 3107.150117][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3107.150117][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.150117][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.150117][ T10] ipv6_find_idev+0x102/0x170 [ 3107.150117][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.150117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.150117][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.150117][ T10] netlink_unicast+0x449/0x710 [ 3107.150117][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.150117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.150117][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.150117][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.150117][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.150117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.150117][ T10] [ 3107.152297][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3107.152581][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3107.152581][ T10] netdev_get_by_index+0x5e/0x80 [ 3107.152581][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3107.152581][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3107.152581][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3107.152581][ T10] ipv6_add_addr+0x411/0x2000 [ 3107.152581][ T10] inet6_addr_add+0x30e/0xa40 [ 3107.152581][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3107.152581][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.152581][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.152581][ T10] netlink_unicast+0x449/0x710 [ 3107.152581][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.152581][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.152581][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.152581][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.152581][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.152581][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.152581][ T10] [ 3107.154955][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3107.154955][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3107.154955][ T10] ipv6_find_idev+0x102/0x170 [ 3107.154955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.154955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.154955][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.154955][ T10] netlink_unicast+0x449/0x710 [ 3107.154955][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.154955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.154955][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.154955][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.154955][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.154955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.154955][ T10] [ 3107.156866][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3107.156866][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3107.156866][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3107.156866][ T10] ipv6_find_idev+0x102/0x170 [ 3107.156866][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3107.156866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3107.156866][ T10] netlink_rcv_skb+0x130/0x360 [ 3107.156866][ T10] netlink_unicast+0x449/0x710 [ 3107.156866][ T10] netlink_sendmsg+0x723/0xbe0 [ 3107.156866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3107.156866][ T10] ___sys_sendmsg+0xee/0x170 [ 3107.156866][ T10] __sys_sendmsg+0xcd/0x170 [ 3107.156866][ T10] do_syscall_64+0xc6/0x1e0 [ 3107.156866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3107.156866][ T10] [ 3117.411765][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3117.412205][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3117.412205][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.412205][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.412205][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.412205][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.412205][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.412205][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.412205][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.412205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.412205][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.412205][ T10] netlink_unicast+0x449/0x710 [ 3117.412205][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.412205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.412205][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.412205][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.412205][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.412205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.412205][ T10] [ 3117.414496][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3117.414496][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.414496][ T10] ipv6_find_idev+0x102/0x170 [ 3117.414496][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.414496][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.414496][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.414496][ T10] netlink_unicast+0x449/0x710 [ 3117.414496][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.414496][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.414496][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.414496][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.414496][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.414496][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.414496][ T10] [ 3117.416251][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3117.416251][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.416251][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.416251][ T10] ipv6_find_idev+0x102/0x170 [ 3117.416251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.416251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.416251][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.416251][ T10] netlink_unicast+0x449/0x710 [ 3117.416251][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.416251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.416251][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.416251][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.416251][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.416251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.416251][ T10] [ 3117.418138][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3117.418461][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3117.418461][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.418461][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.418461][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.418461][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.418461][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.418461][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.418461][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.418461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.418461][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.418461][ T10] netlink_unicast+0x449/0x710 [ 3117.418461][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.418461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.418461][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.418461][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.418461][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.418461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.418461][ T10] [ 3117.420668][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3117.420668][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.420668][ T10] ipv6_find_idev+0x102/0x170 [ 3117.420668][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.420668][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.420668][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.420668][ T10] netlink_unicast+0x449/0x710 [ 3117.420668][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.420668][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.420668][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.420668][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.420668][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.420668][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.420668][ T10] [ 3117.422423][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3117.422423][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.422423][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.422423][ T10] ipv6_find_idev+0x102/0x170 [ 3117.422423][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.422423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.422423][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.422423][ T10] netlink_unicast+0x449/0x710 [ 3117.422423][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.422423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.422423][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.422423][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.422423][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.422423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.422423][ T10] [ 3117.424360][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3117.424673][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3117.424673][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.424673][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.424673][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.424673][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.424673][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.424673][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.424673][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.424673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.424673][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.424673][ T10] netlink_unicast+0x449/0x710 [ 3117.424673][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.424673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.424673][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.424673][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.424673][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.424673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.424673][ T10] [ 3117.426940][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3117.426940][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.426940][ T10] ipv6_find_idev+0x102/0x170 [ 3117.426940][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.426940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.426940][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.426940][ T10] netlink_unicast+0x449/0x710 [ 3117.426940][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.426940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.426940][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.426940][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.426940][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.426940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.426940][ T10] [ 3117.428638][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3117.428638][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.428638][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.428638][ T10] ipv6_find_idev+0x102/0x170 [ 3117.428638][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.428638][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.428638][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.428638][ T10] netlink_unicast+0x449/0x710 [ 3117.428638][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.428638][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.428638][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.428638][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.428638][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.428638][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.428638][ T10] [ 3117.430537][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3117.430925][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3117.430925][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.430925][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.430925][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.430925][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.430925][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.430925][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.430925][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.430925][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.430925][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.430925][ T10] netlink_unicast+0x449/0x710 [ 3117.430925][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.430925][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.430925][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.430925][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.430925][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.430925][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.430925][ T10] [ 3117.433194][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3117.433194][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.433194][ T10] ipv6_find_idev+0x102/0x170 [ 3117.433194][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.433194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.433194][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.433194][ T10] netlink_unicast+0x449/0x710 [ 3117.433194][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.433194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.433194][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.433194][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.433194][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.433194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.433194][ T10] [ 3117.434911][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3117.434911][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.434911][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.434911][ T10] ipv6_find_idev+0x102/0x170 [ 3117.434911][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.434911][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.434911][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.434911][ T10] netlink_unicast+0x449/0x710 [ 3117.434911][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.434911][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.434911][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.434911][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.434911][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.434911][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.434911][ T10] [ 3117.436877][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3117.437216][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3117.437216][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.437216][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.437216][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.437216][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.437216][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.437216][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.437216][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.437216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.437216][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.437216][ T10] netlink_unicast+0x449/0x710 [ 3117.437216][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.437216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.437216][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.437216][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.437216][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.437216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.437216][ T10] [ 3117.439514][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3117.439514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.439514][ T10] ipv6_find_idev+0x102/0x170 [ 3117.439514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.439514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.439514][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.439514][ T10] netlink_unicast+0x449/0x710 [ 3117.439514][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.439514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.439514][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.439514][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.439514][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.439514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.439514][ T10] [ 3117.441265][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3117.441265][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.441265][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.441265][ T10] ipv6_find_idev+0x102/0x170 [ 3117.441265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.441265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.441265][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.441265][ T10] netlink_unicast+0x449/0x710 [ 3117.441265][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.441265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.441265][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.441265][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.441265][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.441265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.441265][ T10] [ 3117.443408][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3117.443774][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3117.443774][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.443774][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.443774][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.443774][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.443774][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.443774][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.443774][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.443774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.443774][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.443774][ T10] netlink_unicast+0x449/0x710 [ 3117.443774][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.443774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.443774][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.443774][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.443774][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.443774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.443774][ T10] [ 3117.446221][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3117.446221][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.446221][ T10] ipv6_find_idev+0x102/0x170 [ 3117.446221][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.446221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.446221][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.446221][ T10] netlink_unicast+0x449/0x710 [ 3117.446221][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.446221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.446221][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.446221][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.446221][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.446221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.446221][ T10] [ 3117.448011][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3117.448011][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.448011][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.448011][ T10] ipv6_find_idev+0x102/0x170 [ 3117.448011][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.448011][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.448011][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.448011][ T10] netlink_unicast+0x449/0x710 [ 3117.448011][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.448011][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.448011][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.448011][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.448011][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.448011][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.448011][ T10] [ 3117.450165][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3117.450503][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3117.450503][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.450503][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.450503][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.450503][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.450503][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.450503][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.450503][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.450503][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.450503][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.450503][ T10] netlink_unicast+0x449/0x710 [ 3117.450503][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.450503][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.450503][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.450503][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.450503][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.450503][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.450503][ T10] [ 3117.452934][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3117.452934][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.452934][ T10] ipv6_find_idev+0x102/0x170 [ 3117.452934][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.452934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.452934][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.452934][ T10] netlink_unicast+0x449/0x710 [ 3117.452934][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.452934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.452934][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.452934][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.452934][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.452934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.452934][ T10] [ 3117.454870][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3117.454870][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.454870][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.454870][ T10] ipv6_find_idev+0x102/0x170 [ 3117.454870][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.454870][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.454870][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.454870][ T10] netlink_unicast+0x449/0x710 [ 3117.454870][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.454870][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.454870][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.454870][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.454870][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.454870][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.454870][ T10] [ 3117.457044][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3117.457375][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3117.457375][ T10] netdev_get_by_index+0x5e/0x80 [ 3117.457375][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3117.457375][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3117.457375][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3117.457375][ T10] ipv6_add_addr+0x411/0x2000 [ 3117.457375][ T10] inet6_addr_add+0x30e/0xa40 [ 3117.457375][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3117.457375][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.457375][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.457375][ T10] netlink_unicast+0x449/0x710 [ 3117.457375][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.457375][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.457375][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.457375][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.457375][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.457375][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.457375][ T10] [ 3117.459840][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3117.459840][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3117.459840][ T10] ipv6_find_idev+0x102/0x170 [ 3117.459840][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.459840][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.459840][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.459840][ T10] netlink_unicast+0x449/0x710 [ 3117.459840][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.459840][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.459840][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.459840][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.459840][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.459840][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.459840][ T10] [ 3117.461760][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3117.461760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3117.461760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3117.461760][ T10] ipv6_find_idev+0x102/0x170 [ 3117.461760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3117.461760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3117.461760][ T10] netlink_rcv_skb+0x130/0x360 [ 3117.461760][ T10] netlink_unicast+0x449/0x710 [ 3117.461760][ T10] netlink_sendmsg+0x723/0xbe0 [ 3117.461760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3117.461760][ T10] ___sys_sendmsg+0xee/0x170 [ 3117.461760][ T10] __sys_sendmsg+0xcd/0x170 [ 3117.461760][ T10] do_syscall_64+0xc6/0x1e0 [ 3117.461760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3117.461760][ T10] [ 3127.467757][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3127.468174][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3127.468174][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.468174][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.468174][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.468174][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.468174][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.468174][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.468174][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.468174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.468174][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.468174][ T10] netlink_unicast+0x449/0x710 [ 3127.468174][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.468174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.468174][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.468174][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.468174][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.468174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.468174][ T10] [ 3127.470388][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3127.470388][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.470388][ T10] ipv6_find_idev+0x102/0x170 [ 3127.470388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.470388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.470388][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.470388][ T10] netlink_unicast+0x449/0x710 [ 3127.470388][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.470388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.470388][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.470388][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.470388][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.470388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.470388][ T10] [ 3127.472137][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3127.472137][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.472137][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.472137][ T10] ipv6_find_idev+0x102/0x170 [ 3127.472137][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.472137][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.472137][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.472137][ T10] netlink_unicast+0x449/0x710 [ 3127.472137][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.472137][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.472137][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.472137][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.472137][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.472137][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.472137][ T10] [ 3127.473985][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3127.474299][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3127.474299][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.474299][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.474299][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.474299][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.474299][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.474299][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.474299][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.474299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.474299][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.474299][ T10] netlink_unicast+0x449/0x710 [ 3127.474299][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.474299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.474299][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.474299][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.474299][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.474299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.474299][ T10] [ 3127.476498][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3127.476498][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.476498][ T10] ipv6_find_idev+0x102/0x170 [ 3127.476498][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.476498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.476498][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.476498][ T10] netlink_unicast+0x449/0x710 [ 3127.476498][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.476498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.476498][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.476498][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.476498][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.476498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.476498][ T10] [ 3127.478220][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3127.478220][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.478220][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.478220][ T10] ipv6_find_idev+0x102/0x170 [ 3127.478220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.478220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.478220][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.478220][ T10] netlink_unicast+0x449/0x710 [ 3127.478220][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.478220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.478220][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.478220][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.478220][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.478220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.478220][ T10] [ 3127.480112][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3127.480402][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3127.480402][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.480402][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.480402][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.480402][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.480402][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.480402][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.480402][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.480402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.480402][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.480402][ T10] netlink_unicast+0x449/0x710 [ 3127.480402][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.480402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.480402][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.480402][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.480402][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.480402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.480402][ T10] [ 3127.482569][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3127.482569][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.482569][ T10] ipv6_find_idev+0x102/0x170 [ 3127.482569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.482569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.482569][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.482569][ T10] netlink_unicast+0x449/0x710 [ 3127.482569][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.482569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.482569][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.482569][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.482569][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.482569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.482569][ T10] [ 3127.484254][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3127.484254][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.484254][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.484254][ T10] ipv6_find_idev+0x102/0x170 [ 3127.484254][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.484254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.484254][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.484254][ T10] netlink_unicast+0x449/0x710 [ 3127.484254][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.484254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.484254][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.484254][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.484254][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.484254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.484254][ T10] [ 3127.486138][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3127.486424][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3127.486424][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.486424][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.486424][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.486424][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.486424][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.486424][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.486424][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.486424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.486424][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.486424][ T10] netlink_unicast+0x449/0x710 [ 3127.486424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.486424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.486424][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.486424][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.486424][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.486424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.486424][ T10] [ 3127.488601][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3127.488601][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.488601][ T10] ipv6_find_idev+0x102/0x170 [ 3127.488601][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.488601][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.488601][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.488601][ T10] netlink_unicast+0x449/0x710 [ 3127.488601][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.488601][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.488601][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.488601][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.488601][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.488601][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.488601][ T10] [ 3127.490270][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3127.490270][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.490270][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.490270][ T10] ipv6_find_idev+0x102/0x170 [ 3127.490270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.490270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.490270][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.490270][ T10] netlink_unicast+0x449/0x710 [ 3127.490270][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.490270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.490270][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.490270][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.490270][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.490270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.490270][ T10] [ 3127.492554][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3127.492892][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3127.492892][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.492892][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.492892][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.492892][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.492892][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.492892][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.492892][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.492892][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.492892][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.492892][ T10] netlink_unicast+0x449/0x710 [ 3127.492892][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.492892][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.492892][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.492892][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.492892][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.492892][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.492892][ T10] [ 3127.495089][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3127.495089][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.495089][ T10] ipv6_find_idev+0x102/0x170 [ 3127.495089][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.495089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.495089][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.495089][ T10] netlink_unicast+0x449/0x710 [ 3127.495089][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.495089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.495089][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.495089][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.495089][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.495089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.495089][ T10] [ 3127.496820][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3127.496820][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.496820][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.496820][ T10] ipv6_find_idev+0x102/0x170 [ 3127.496820][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.496820][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.496820][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.496820][ T10] netlink_unicast+0x449/0x710 [ 3127.496820][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.496820][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.496820][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.496820][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.496820][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.496820][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.496820][ T10] [ 3127.498708][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3127.498991][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3127.498991][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.498991][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.498991][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.498991][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.498991][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.498991][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.498991][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.498991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.498991][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.498991][ T10] netlink_unicast+0x449/0x710 [ 3127.498991][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.498991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.498991][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.498991][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.498991][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.498991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.498991][ T10] [ 3127.501292][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3127.501292][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.501292][ T10] ipv6_find_idev+0x102/0x170 [ 3127.501292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.501292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.501292][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.501292][ T10] netlink_unicast+0x449/0x710 [ 3127.501292][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.501292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.501292][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.501292][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.501292][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.501292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.501292][ T10] [ 3127.503246][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3127.503246][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.503246][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.503246][ T10] ipv6_find_idev+0x102/0x170 [ 3127.503246][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.503246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.503246][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.503246][ T10] netlink_unicast+0x449/0x710 [ 3127.503246][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.503246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.503246][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.503246][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.503246][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.503246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.503246][ T10] [ 3127.505449][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3127.505791][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3127.505791][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.505791][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.505791][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.505791][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.505791][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.505791][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.505791][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.505791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.505791][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.505791][ T10] netlink_unicast+0x449/0x710 [ 3127.505791][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.505791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.505791][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.505791][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.505791][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.505791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.505791][ T10] [ 3127.508197][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3127.508197][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.508197][ T10] ipv6_find_idev+0x102/0x170 [ 3127.508197][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.508197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.508197][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.508197][ T10] netlink_unicast+0x449/0x710 [ 3127.508197][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.508197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.508197][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.508197][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.508197][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.508197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.508197][ T10] [ 3127.510012][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3127.510012][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.510012][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.510012][ T10] ipv6_find_idev+0x102/0x170 [ 3127.510012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.510012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.510012][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.510012][ T10] netlink_unicast+0x449/0x710 [ 3127.510012][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.510012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.510012][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.510012][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.510012][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.510012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.510012][ T10] [ 3127.512149][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3127.512487][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3127.512487][ T10] netdev_get_by_index+0x5e/0x80 [ 3127.512487][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3127.512487][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3127.512487][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3127.512487][ T10] ipv6_add_addr+0x411/0x2000 [ 3127.512487][ T10] inet6_addr_add+0x30e/0xa40 [ 3127.512487][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3127.512487][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.512487][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.512487][ T10] netlink_unicast+0x449/0x710 [ 3127.512487][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.512487][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.512487][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.512487][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.512487][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.512487][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.512487][ T10] [ 3127.514958][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3127.514958][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3127.514958][ T10] ipv6_find_idev+0x102/0x170 [ 3127.514958][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.514958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.514958][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.514958][ T10] netlink_unicast+0x449/0x710 [ 3127.514958][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.514958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.514958][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.514958][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.514958][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.514958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.514958][ T10] [ 3127.516852][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3127.516852][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3127.516852][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3127.516852][ T10] ipv6_find_idev+0x102/0x170 [ 3127.516852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3127.516852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3127.516852][ T10] netlink_rcv_skb+0x130/0x360 [ 3127.516852][ T10] netlink_unicast+0x449/0x710 [ 3127.516852][ T10] netlink_sendmsg+0x723/0xbe0 [ 3127.516852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3127.516852][ T10] ___sys_sendmsg+0xee/0x170 [ 3127.516852][ T10] __sys_sendmsg+0xcd/0x170 [ 3127.516852][ T10] do_syscall_64+0xc6/0x1e0 [ 3127.516852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3127.516852][ T10] [ 3137.755747][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3137.756174][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3137.756174][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.756174][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.756174][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.756174][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.756174][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.756174][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.756174][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.756174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.756174][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.756174][ T10] netlink_unicast+0x449/0x710 [ 3137.756174][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.756174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.756174][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.756174][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.756174][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.756174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.756174][ T10] [ 3137.758434][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3137.758434][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.758434][ T10] ipv6_find_idev+0x102/0x170 [ 3137.758434][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.758434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.758434][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.758434][ T10] netlink_unicast+0x449/0x710 [ 3137.758434][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.758434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.758434][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.758434][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.758434][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.758434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.758434][ T10] [ 3137.760121][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3137.760121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.760121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.760121][ T10] ipv6_find_idev+0x102/0x170 [ 3137.760121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.760121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.760121][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.760121][ T10] netlink_unicast+0x449/0x710 [ 3137.760121][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.760121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.760121][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.760121][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.760121][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.760121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.760121][ T10] [ 3137.761978][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3137.762277][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3137.762277][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.762277][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.762277][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.762277][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.762277][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.762277][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.762277][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.762277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.762277][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.762277][ T10] netlink_unicast+0x449/0x710 [ 3137.762277][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.762277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.762277][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.762277][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.762277][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.762277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.762277][ T10] [ 3137.764487][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3137.764487][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.764487][ T10] ipv6_find_idev+0x102/0x170 [ 3137.764487][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.764487][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.764487][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.764487][ T10] netlink_unicast+0x449/0x710 [ 3137.764487][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.764487][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.764487][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.764487][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.764487][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.764487][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.764487][ T10] [ 3137.766201][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3137.766201][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.766201][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.766201][ T10] ipv6_find_idev+0x102/0x170 [ 3137.766201][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.766201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.766201][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.766201][ T10] netlink_unicast+0x449/0x710 [ 3137.766201][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.766201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.766201][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.766201][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.766201][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.766201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.766201][ T10] [ 3137.768081][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3137.768383][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3137.768383][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.768383][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.768383][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.768383][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.768383][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.768383][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.768383][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.768383][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.768383][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.768383][ T10] netlink_unicast+0x449/0x710 [ 3137.768383][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.768383][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.768383][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.768383][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.768383][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.768383][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.768383][ T10] [ 3137.770551][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3137.770551][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.770551][ T10] ipv6_find_idev+0x102/0x170 [ 3137.770551][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.770551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.770551][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.770551][ T10] netlink_unicast+0x449/0x710 [ 3137.770551][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.770551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.770551][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.770551][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.770551][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.770551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.770551][ T10] [ 3137.772220][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3137.772220][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.772220][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.772220][ T10] ipv6_find_idev+0x102/0x170 [ 3137.772220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.772220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.772220][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.772220][ T10] netlink_unicast+0x449/0x710 [ 3137.772220][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.772220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.772220][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.772220][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.772220][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.772220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.772220][ T10] [ 3137.774042][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3137.774328][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3137.774328][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.774328][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.774328][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.774328][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.774328][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.774328][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.774328][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.774328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.774328][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.774328][ T10] netlink_unicast+0x449/0x710 [ 3137.774328][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.774328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.774328][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.774328][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.774328][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.774328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.774328][ T10] [ 3137.776544][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3137.776544][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.776544][ T10] ipv6_find_idev+0x102/0x170 [ 3137.776544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.776544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.776544][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.776544][ T10] netlink_unicast+0x449/0x710 [ 3137.776544][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.776544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.776544][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.776544][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.776544][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.776544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.776544][ T10] [ 3137.778266][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3137.778266][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.778266][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.778266][ T10] ipv6_find_idev+0x102/0x170 [ 3137.778266][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.778266][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.778266][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.778266][ T10] netlink_unicast+0x449/0x710 [ 3137.778266][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.778266][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.778266][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.778266][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.778266][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.778266][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.778266][ T10] [ 3137.780539][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3137.781182][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3137.781182][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.781182][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.781182][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.781182][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.781182][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.781182][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.781182][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.781182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.781182][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.781182][ T10] netlink_unicast+0x449/0x710 [ 3137.781182][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.781182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.781182][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.781182][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.781182][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.781182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.781182][ T10] [ 3137.783364][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3137.783364][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.783364][ T10] ipv6_find_idev+0x102/0x170 [ 3137.783364][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.783364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.783364][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.783364][ T10] netlink_unicast+0x449/0x710 [ 3137.783364][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.783364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.783364][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.783364][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.783364][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.783364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.783364][ T10] [ 3137.785052][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3137.785052][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.785052][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.785052][ T10] ipv6_find_idev+0x102/0x170 [ 3137.785052][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.785052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.785052][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.785052][ T10] netlink_unicast+0x449/0x710 [ 3137.785052][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.785052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.785052][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.785052][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.785052][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.785052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.785052][ T10] [ 3137.786917][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3137.787223][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3137.787223][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.787223][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.787223][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.787223][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.787223][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.787223][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.787223][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.787223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.787223][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.787223][ T10] netlink_unicast+0x449/0x710 [ 3137.787223][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.787223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.787223][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.787223][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.787223][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.787223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.787223][ T10] [ 3137.789407][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3137.789407][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.789407][ T10] ipv6_find_idev+0x102/0x170 [ 3137.789407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.789407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.789407][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.789407][ T10] netlink_unicast+0x449/0x710 [ 3137.789407][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.789407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.789407][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.789407][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.789407][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.789407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.789407][ T10] [ 3137.791121][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3137.791121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.791121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.791121][ T10] ipv6_find_idev+0x102/0x170 [ 3137.791121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.791121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.791121][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.791121][ T10] netlink_unicast+0x449/0x710 [ 3137.791121][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.791121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.791121][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.791121][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.791121][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.791121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.791121][ T10] [ 3137.793256][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3137.793535][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3137.793535][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.793535][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.793535][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.793535][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.793535][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.793535][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.793535][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.793535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.793535][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.793535][ T10] netlink_unicast+0x449/0x710 [ 3137.793535][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.793535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.793535][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.793535][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.793535][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.793535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.793535][ T10] [ 3137.796002][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3137.796002][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.796002][ T10] ipv6_find_idev+0x102/0x170 [ 3137.796002][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.796002][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.796002][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.796002][ T10] netlink_unicast+0x449/0x710 [ 3137.796002][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.796002][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.796002][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.796002][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.796002][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.796002][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.796002][ T10] [ 3137.797892][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3137.797892][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.797892][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.797892][ T10] ipv6_find_idev+0x102/0x170 [ 3137.797892][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.797892][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.797892][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.797892][ T10] netlink_unicast+0x449/0x710 [ 3137.797892][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.797892][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.797892][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.797892][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.797892][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.797892][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.797892][ T10] [ 3137.799991][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3137.800323][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3137.800323][ T10] netdev_get_by_index+0x5e/0x80 [ 3137.800323][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3137.800323][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3137.800323][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3137.800323][ T10] ipv6_add_addr+0x411/0x2000 [ 3137.800323][ T10] inet6_addr_add+0x30e/0xa40 [ 3137.800323][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3137.800323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.800323][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.800323][ T10] netlink_unicast+0x449/0x710 [ 3137.800323][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.800323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.800323][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.800323][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.800323][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.800323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.800323][ T10] [ 3137.802677][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3137.802677][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3137.802677][ T10] ipv6_find_idev+0x102/0x170 [ 3137.802677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.802677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.802677][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.802677][ T10] netlink_unicast+0x449/0x710 [ 3137.802677][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.802677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.802677][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.802677][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.802677][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.802677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.802677][ T10] [ 3137.804571][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3137.804571][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3137.804571][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3137.804571][ T10] ipv6_find_idev+0x102/0x170 [ 3137.804571][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3137.804571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3137.804571][ T10] netlink_rcv_skb+0x130/0x360 [ 3137.804571][ T10] netlink_unicast+0x449/0x710 [ 3137.804571][ T10] netlink_sendmsg+0x723/0xbe0 [ 3137.804571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3137.804571][ T10] ___sys_sendmsg+0xee/0x170 [ 3137.804571][ T10] __sys_sendmsg+0xcd/0x170 [ 3137.804571][ T10] do_syscall_64+0xc6/0x1e0 [ 3137.804571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3137.804571][ T10] [ 3148.043709][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3148.044104][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3148.044104][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.044104][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.044104][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.044104][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.044104][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.044104][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.044104][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.044104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.044104][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.044104][ T10] netlink_unicast+0x449/0x710 [ 3148.044104][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.044104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.044104][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.044104][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.044104][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.044104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.044104][ T10] [ 3148.046402][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3148.046402][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.046402][ T10] ipv6_find_idev+0x102/0x170 [ 3148.046402][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.046402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.046402][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.046402][ T10] netlink_unicast+0x449/0x710 [ 3148.046402][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.046402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.046402][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.046402][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.046402][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.046402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.046402][ T10] [ 3148.048117][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3148.048117][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.048117][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.048117][ T10] ipv6_find_idev+0x102/0x170 [ 3148.048117][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.048117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.048117][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.048117][ T10] netlink_unicast+0x449/0x710 [ 3148.048117][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.048117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.048117][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.048117][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.048117][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.048117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.048117][ T10] [ 3148.050019][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3148.050318][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3148.050318][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.050318][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.050318][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.050318][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.050318][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.050318][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.050318][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.050318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.050318][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.050318][ T10] netlink_unicast+0x449/0x710 [ 3148.050318][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.050318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.050318][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.050318][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.050318][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.050318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.050318][ T10] [ 3148.052508][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3148.052508][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.052508][ T10] ipv6_find_idev+0x102/0x170 [ 3148.052508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.052508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.052508][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.052508][ T10] netlink_unicast+0x449/0x710 [ 3148.052508][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.052508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.052508][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.052508][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.052508][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.052508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.052508][ T10] [ 3148.054218][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3148.054218][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.054218][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.054218][ T10] ipv6_find_idev+0x102/0x170 [ 3148.054218][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.054218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.054218][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.054218][ T10] netlink_unicast+0x449/0x710 [ 3148.054218][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.054218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.054218][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.054218][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.054218][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.054218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.054218][ T10] [ 3148.056110][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3148.056398][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3148.056398][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.056398][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.056398][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.056398][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.056398][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.056398][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.056398][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.056398][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.056398][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.056398][ T10] netlink_unicast+0x449/0x710 [ 3148.056398][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.056398][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.056398][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.056398][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.056398][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.056398][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.056398][ T10] [ 3148.058592][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3148.058592][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.058592][ T10] ipv6_find_idev+0x102/0x170 [ 3148.058592][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.058592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.058592][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.058592][ T10] netlink_unicast+0x449/0x710 [ 3148.058592][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.058592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.058592][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.058592][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.058592][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.058592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.058592][ T10] [ 3148.060274][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3148.060274][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.060274][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.060274][ T10] ipv6_find_idev+0x102/0x170 [ 3148.060274][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.060274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.060274][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.060274][ T10] netlink_unicast+0x449/0x710 [ 3148.060274][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.060274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.060274][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.060274][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.060274][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.060274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.060274][ T10] [ 3148.062145][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3148.062426][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3148.062426][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.062426][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.062426][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.062426][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.062426][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.062426][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.062426][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.062426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.062426][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.062426][ T10] netlink_unicast+0x449/0x710 [ 3148.062426][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.062426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.062426][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.062426][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.062426][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.062426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.062426][ T10] [ 3148.064670][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3148.064670][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.064670][ T10] ipv6_find_idev+0x102/0x170 [ 3148.064670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.064670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.064670][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.064670][ T10] netlink_unicast+0x449/0x710 [ 3148.064670][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.064670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.064670][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.064670][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.064670][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.064670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.064670][ T10] [ 3148.066366][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3148.066366][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.066366][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.066366][ T10] ipv6_find_idev+0x102/0x170 [ 3148.066366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.066366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.066366][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.066366][ T10] netlink_unicast+0x449/0x710 [ 3148.066366][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.066366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.066366][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.066366][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.066366][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.066366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.066366][ T10] [ 3148.068607][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3148.069256][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3148.069256][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.069256][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.069256][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.069256][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.069256][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.069256][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.069256][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.069256][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.069256][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.069256][ T10] netlink_unicast+0x449/0x710 [ 3148.069256][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.069256][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.069256][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.069256][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.069256][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.069256][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.069256][ T10] [ 3148.071475][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3148.071475][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.071475][ T10] ipv6_find_idev+0x102/0x170 [ 3148.071475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.071475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.071475][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.071475][ T10] netlink_unicast+0x449/0x710 [ 3148.071475][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.071475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.071475][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.071475][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.071475][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.071475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.071475][ T10] [ 3148.073166][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3148.073166][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.073166][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.073166][ T10] ipv6_find_idev+0x102/0x170 [ 3148.073166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.073166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.073166][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.073166][ T10] netlink_unicast+0x449/0x710 [ 3148.073166][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.073166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.073166][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.073166][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.073166][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.073166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.073166][ T10] [ 3148.075035][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3148.075343][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3148.075343][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.075343][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.075343][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.075343][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.075343][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.075343][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.075343][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.075343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.075343][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.075343][ T10] netlink_unicast+0x449/0x710 [ 3148.075343][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.075343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.075343][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.075343][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.075343][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.075343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.075343][ T10] [ 3148.077589][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3148.077589][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.077589][ T10] ipv6_find_idev+0x102/0x170 [ 3148.077589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.077589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.077589][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.077589][ T10] netlink_unicast+0x449/0x710 [ 3148.077589][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.077589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.077589][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.077589][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.077589][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.077589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.077589][ T10] [ 3148.079362][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3148.079362][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.079362][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.079362][ T10] ipv6_find_idev+0x102/0x170 [ 3148.079362][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.079362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.079362][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.079362][ T10] netlink_unicast+0x449/0x710 [ 3148.079362][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.079362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.079362][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.079362][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.079362][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.079362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.079362][ T10] [ 3148.081481][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3148.081826][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3148.081826][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.081826][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.081826][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.081826][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.081826][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.081826][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.081826][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.081826][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.081826][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.081826][ T10] netlink_unicast+0x449/0x710 [ 3148.081826][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.081826][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.081826][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.081826][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.081826][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.081826][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.081826][ T10] [ 3148.084220][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3148.084220][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.084220][ T10] ipv6_find_idev+0x102/0x170 [ 3148.084220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.084220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.084220][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.084220][ T10] netlink_unicast+0x449/0x710 [ 3148.084220][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.084220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.084220][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.084220][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.084220][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.084220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.084220][ T10] [ 3148.086173][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3148.086173][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.086173][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.086173][ T10] ipv6_find_idev+0x102/0x170 [ 3148.086173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.086173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.086173][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.086173][ T10] netlink_unicast+0x449/0x710 [ 3148.086173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.086173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.086173][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.086173][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.086173][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.086173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.086173][ T10] [ 3148.088284][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3148.088565][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3148.088565][ T10] netdev_get_by_index+0x5e/0x80 [ 3148.088565][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3148.088565][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3148.088565][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3148.088565][ T10] ipv6_add_addr+0x411/0x2000 [ 3148.088565][ T10] inet6_addr_add+0x30e/0xa40 [ 3148.088565][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3148.088565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.088565][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.088565][ T10] netlink_unicast+0x449/0x710 [ 3148.088565][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.088565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.088565][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.088565][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.088565][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.088565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.088565][ T10] [ 3148.090989][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3148.090989][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3148.090989][ T10] ipv6_find_idev+0x102/0x170 [ 3148.090989][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.090989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.090989][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.090989][ T10] netlink_unicast+0x449/0x710 [ 3148.090989][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.090989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.090989][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.090989][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.090989][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.090989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.090989][ T10] [ 3148.092865][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3148.092865][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3148.092865][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3148.092865][ T10] ipv6_find_idev+0x102/0x170 [ 3148.092865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3148.092865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3148.092865][ T10] netlink_rcv_skb+0x130/0x360 [ 3148.092865][ T10] netlink_unicast+0x449/0x710 [ 3148.092865][ T10] netlink_sendmsg+0x723/0xbe0 [ 3148.092865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3148.092865][ T10] ___sys_sendmsg+0xee/0x170 [ 3148.092865][ T10] __sys_sendmsg+0xcd/0x170 [ 3148.092865][ T10] do_syscall_64+0xc6/0x1e0 [ 3148.092865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3148.092865][ T10] [ 3158.331754][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3158.332172][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3158.332172][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.332172][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.332172][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.332172][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.332172][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.332172][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.332172][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.332172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.332172][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.332172][ T10] netlink_unicast+0x449/0x710 [ 3158.332172][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.332172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.332172][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.332172][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.332172][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.332172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.332172][ T10] [ 3158.334450][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3158.334450][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.334450][ T10] ipv6_find_idev+0x102/0x170 [ 3158.334450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.334450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.334450][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.334450][ T10] netlink_unicast+0x449/0x710 [ 3158.334450][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.334450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.334450][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.334450][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.334450][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.334450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.334450][ T10] [ 3158.336173][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3158.336173][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.336173][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.336173][ T10] ipv6_find_idev+0x102/0x170 [ 3158.336173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.336173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.336173][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.336173][ T10] netlink_unicast+0x449/0x710 [ 3158.336173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.336173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.336173][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.336173][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.336173][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.336173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.336173][ T10] [ 3158.338029][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3158.338332][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3158.338332][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.338332][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.338332][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.338332][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.338332][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.338332][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.338332][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.338332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.338332][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.338332][ T10] netlink_unicast+0x449/0x710 [ 3158.338332][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.338332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.338332][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.338332][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.338332][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.338332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.338332][ T10] [ 3158.340520][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3158.340520][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.340520][ T10] ipv6_find_idev+0x102/0x170 [ 3158.340520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.340520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.340520][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.340520][ T10] netlink_unicast+0x449/0x710 [ 3158.340520][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.340520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.340520][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.340520][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.340520][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.340520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.340520][ T10] [ 3158.342236][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3158.342236][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.342236][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.342236][ T10] ipv6_find_idev+0x102/0x170 [ 3158.342236][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.342236][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.342236][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.342236][ T10] netlink_unicast+0x449/0x710 [ 3158.342236][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.342236][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.342236][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.342236][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.342236][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.342236][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.342236][ T10] [ 3158.344132][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3158.344428][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3158.344428][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.344428][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.344428][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.344428][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.344428][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.344428][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.344428][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.344428][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.344428][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.344428][ T10] netlink_unicast+0x449/0x710 [ 3158.344428][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.344428][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.344428][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.344428][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.344428][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.344428][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.344428][ T10] [ 3158.346673][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3158.346673][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.346673][ T10] ipv6_find_idev+0x102/0x170 [ 3158.346673][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.346673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.346673][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.346673][ T10] netlink_unicast+0x449/0x710 [ 3158.346673][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.346673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.346673][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.346673][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.346673][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.346673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.346673][ T10] [ 3158.348368][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3158.348368][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.348368][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.348368][ T10] ipv6_find_idev+0x102/0x170 [ 3158.348368][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.348368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.348368][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.348368][ T10] netlink_unicast+0x449/0x710 [ 3158.348368][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.348368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.348368][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.348368][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.348368][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.348368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.348368][ T10] [ 3158.350197][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3158.350480][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3158.350480][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.350480][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.350480][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.350480][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.350480][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.350480][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.350480][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.350480][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.350480][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.350480][ T10] netlink_unicast+0x449/0x710 [ 3158.350480][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.350480][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.350480][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.350480][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.350480][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.350480][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.350480][ T10] [ 3158.352637][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3158.352637][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.352637][ T10] ipv6_find_idev+0x102/0x170 [ 3158.352637][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.352637][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.352637][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.352637][ T10] netlink_unicast+0x449/0x710 [ 3158.352637][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.352637][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.352637][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.352637][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.352637][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.352637][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.352637][ T10] [ 3158.354449][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3158.354449][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.354449][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.354449][ T10] ipv6_find_idev+0x102/0x170 [ 3158.354449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.354449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.354449][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.354449][ T10] netlink_unicast+0x449/0x710 [ 3158.354449][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.354449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.354449][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.354449][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.354449][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.354449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.354449][ T10] [ 3158.356760][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3158.357051][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3158.357051][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.357051][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.357051][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.357051][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.357051][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.357051][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.357051][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.357051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.357051][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.357051][ T10] netlink_unicast+0x449/0x710 [ 3158.357051][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.357051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.357051][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.357051][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.357051][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.357051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.357051][ T10] [ 3158.359205][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3158.359205][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.359205][ T10] ipv6_find_idev+0x102/0x170 [ 3158.359205][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.359205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.359205][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.359205][ T10] netlink_unicast+0x449/0x710 [ 3158.359205][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.359205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.359205][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.359205][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.359205][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.359205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.359205][ T10] [ 3158.360886][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3158.360886][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.360886][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.360886][ T10] ipv6_find_idev+0x102/0x170 [ 3158.360886][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.360886][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.360886][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.360886][ T10] netlink_unicast+0x449/0x710 [ 3158.360886][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.360886][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.360886][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.360886][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.360886][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.360886][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.360886][ T10] [ 3158.362786][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3158.363061][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3158.363061][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.363061][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.363061][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.363061][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.363061][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.363061][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.363061][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.363061][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.363061][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.363061][ T10] netlink_unicast+0x449/0x710 [ 3158.363061][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.363061][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.363061][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.363061][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.363061][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.363061][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.363061][ T10] [ 3158.365358][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3158.365358][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.365358][ T10] ipv6_find_idev+0x102/0x170 [ 3158.365358][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.365358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.365358][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.365358][ T10] netlink_unicast+0x449/0x710 [ 3158.365358][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.365358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.365358][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.365358][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.365358][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.365358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.365358][ T10] [ 3158.367299][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3158.367299][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.367299][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.367299][ T10] ipv6_find_idev+0x102/0x170 [ 3158.367299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.367299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.367299][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.367299][ T10] netlink_unicast+0x449/0x710 [ 3158.367299][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.367299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.367299][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.367299][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.367299][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.367299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.367299][ T10] [ 3158.369337][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3158.369623][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3158.369623][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.369623][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.369623][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.369623][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.369623][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.369623][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.369623][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.369623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.369623][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.369623][ T10] netlink_unicast+0x449/0x710 [ 3158.369623][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.369623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.369623][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.369623][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.369623][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.369623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.369623][ T10] [ 3158.372036][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3158.372036][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.372036][ T10] ipv6_find_idev+0x102/0x170 [ 3158.372036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.372036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.372036][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.372036][ T10] netlink_unicast+0x449/0x710 [ 3158.372036][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.372036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.372036][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.372036][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.372036][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.372036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.372036][ T10] [ 3158.373859][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3158.373859][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.373859][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.373859][ T10] ipv6_find_idev+0x102/0x170 [ 3158.373859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.373859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.373859][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.373859][ T10] netlink_unicast+0x449/0x710 [ 3158.373859][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.373859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.373859][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.373859][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.373859][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.373859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.373859][ T10] [ 3158.375945][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3158.376229][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3158.376229][ T10] netdev_get_by_index+0x5e/0x80 [ 3158.376229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3158.376229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3158.376229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3158.376229][ T10] ipv6_add_addr+0x411/0x2000 [ 3158.376229][ T10] inet6_addr_add+0x30e/0xa40 [ 3158.376229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3158.376229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.376229][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.376229][ T10] netlink_unicast+0x449/0x710 [ 3158.376229][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.376229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.376229][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.376229][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.376229][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.376229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.376229][ T10] [ 3158.378725][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3158.378725][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3158.378725][ T10] ipv6_find_idev+0x102/0x170 [ 3158.378725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.378725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.378725][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.378725][ T10] netlink_unicast+0x449/0x710 [ 3158.378725][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.378725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.378725][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.378725][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.378725][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.378725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.378725][ T10] [ 3158.380571][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3158.380571][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3158.380571][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3158.380571][ T10] ipv6_find_idev+0x102/0x170 [ 3158.380571][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3158.380571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3158.380571][ T10] netlink_rcv_skb+0x130/0x360 [ 3158.380571][ T10] netlink_unicast+0x449/0x710 [ 3158.380571][ T10] netlink_sendmsg+0x723/0xbe0 [ 3158.380571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3158.380571][ T10] ___sys_sendmsg+0xee/0x170 [ 3158.380571][ T10] __sys_sendmsg+0xcd/0x170 [ 3158.380571][ T10] do_syscall_64+0xc6/0x1e0 [ 3158.380571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3158.380571][ T10] [ 3168.619774][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3168.620256][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3168.620256][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.620256][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.620256][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.620256][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.620256][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.620256][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.620256][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.620256][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.620256][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.620256][ T10] netlink_unicast+0x449/0x710 [ 3168.620256][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.620256][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.620256][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.620256][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.620256][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.620256][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.620256][ T10] [ 3168.622561][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3168.622561][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.622561][ T10] ipv6_find_idev+0x102/0x170 [ 3168.622561][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.622561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.622561][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.622561][ T10] netlink_unicast+0x449/0x710 [ 3168.622561][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.622561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.622561][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.622561][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.622561][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.622561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.622561][ T10] [ 3168.624363][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3168.624363][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.624363][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.624363][ T10] ipv6_find_idev+0x102/0x170 [ 3168.624363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.624363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.624363][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.624363][ T10] netlink_unicast+0x449/0x710 [ 3168.624363][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.624363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.624363][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.624363][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.624363][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.624363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.624363][ T10] [ 3168.626293][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3168.626590][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3168.626590][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.626590][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.626590][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.626590][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.626590][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.626590][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.626590][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.626590][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.626590][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.626590][ T10] netlink_unicast+0x449/0x710 [ 3168.626590][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.626590][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.626590][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.626590][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.626590][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.626590][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.626590][ T10] [ 3168.628841][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3168.628841][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.628841][ T10] ipv6_find_idev+0x102/0x170 [ 3168.628841][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.628841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.628841][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.628841][ T10] netlink_unicast+0x449/0x710 [ 3168.628841][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.628841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.628841][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.628841][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.628841][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.628841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.628841][ T10] [ 3168.630582][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3168.630582][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.630582][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.630582][ T10] ipv6_find_idev+0x102/0x170 [ 3168.630582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.630582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.630582][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.630582][ T10] netlink_unicast+0x449/0x710 [ 3168.630582][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.630582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.630582][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.630582][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.630582][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.630582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.630582][ T10] [ 3168.632499][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3168.632820][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3168.632820][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.632820][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.632820][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.632820][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.632820][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.632820][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.632820][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.632820][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.632820][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.632820][ T10] netlink_unicast+0x449/0x710 [ 3168.632820][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.632820][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.632820][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.632820][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.632820][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.632820][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.632820][ T10] [ 3168.635041][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3168.635041][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.635041][ T10] ipv6_find_idev+0x102/0x170 [ 3168.635041][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.635041][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.635041][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.635041][ T10] netlink_unicast+0x449/0x710 [ 3168.635041][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.635041][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.635041][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.635041][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.635041][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.635041][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.635041][ T10] [ 3168.636812][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3168.636812][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.636812][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.636812][ T10] ipv6_find_idev+0x102/0x170 [ 3168.636812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.636812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.636812][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.636812][ T10] netlink_unicast+0x449/0x710 [ 3168.636812][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.636812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.636812][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.636812][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.636812][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.636812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.636812][ T10] [ 3168.638722][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3168.639021][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3168.639021][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.639021][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.639021][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.639021][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.639021][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.639021][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.639021][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.639021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.639021][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.639021][ T10] netlink_unicast+0x449/0x710 [ 3168.639021][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.639021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.639021][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.639021][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.639021][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.639021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.639021][ T10] [ 3168.641306][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3168.641306][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.641306][ T10] ipv6_find_idev+0x102/0x170 [ 3168.641306][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.641306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.641306][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.641306][ T10] netlink_unicast+0x449/0x710 [ 3168.641306][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.641306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.641306][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.641306][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.641306][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.641306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.641306][ T10] [ 3168.643041][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3168.643041][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.643041][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.643041][ T10] ipv6_find_idev+0x102/0x170 [ 3168.643041][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.643041][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.643041][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.643041][ T10] netlink_unicast+0x449/0x710 [ 3168.643041][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.643041][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.643041][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.643041][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.643041][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.643041][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.643041][ T10] [ 3168.645279][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3168.645925][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3168.645925][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.645925][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.645925][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.645925][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.645925][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.645925][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.645925][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.645925][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.645925][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.645925][ T10] netlink_unicast+0x449/0x710 [ 3168.645925][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.645925][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.645925][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.645925][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.645925][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.645925][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.645925][ T10] [ 3168.648184][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3168.648184][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.648184][ T10] ipv6_find_idev+0x102/0x170 [ 3168.648184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.648184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.648184][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.648184][ T10] netlink_unicast+0x449/0x710 [ 3168.648184][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.648184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.648184][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.648184][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.648184][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.648184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.648184][ T10] [ 3168.649893][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3168.649893][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.649893][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.649893][ T10] ipv6_find_idev+0x102/0x170 [ 3168.649893][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.649893][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.649893][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.649893][ T10] netlink_unicast+0x449/0x710 [ 3168.649893][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.649893][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.649893][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.649893][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.649893][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.649893][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.649893][ T10] [ 3168.651712][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3168.652003][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3168.652003][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.652003][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.652003][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.652003][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.652003][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.652003][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.652003][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.652003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.652003][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.652003][ T10] netlink_unicast+0x449/0x710 [ 3168.652003][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.652003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.652003][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.652003][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.652003][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.652003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.652003][ T10] [ 3168.654301][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3168.654301][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.654301][ T10] ipv6_find_idev+0x102/0x170 [ 3168.654301][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.654301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.654301][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.654301][ T10] netlink_unicast+0x449/0x710 [ 3168.654301][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.654301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.654301][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.654301][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.654301][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.654301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.654301][ T10] [ 3168.656100][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3168.656100][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.656100][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.656100][ T10] ipv6_find_idev+0x102/0x170 [ 3168.656100][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.656100][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.656100][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.656100][ T10] netlink_unicast+0x449/0x710 [ 3168.656100][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.656100][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.656100][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.656100][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.656100][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.656100][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.656100][ T10] [ 3168.658326][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3168.658664][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3168.658664][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.658664][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.658664][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.658664][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.658664][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.658664][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.658664][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.658664][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.658664][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.658664][ T10] netlink_unicast+0x449/0x710 [ 3168.658664][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.658664][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.658664][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.658664][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.658664][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.658664][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.658664][ T10] [ 3168.661106][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3168.661106][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.661106][ T10] ipv6_find_idev+0x102/0x170 [ 3168.661106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.661106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.661106][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.661106][ T10] netlink_unicast+0x449/0x710 [ 3168.661106][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.661106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.661106][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.661106][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.661106][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.661106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.661106][ T10] [ 3168.663048][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3168.663048][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.663048][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.663048][ T10] ipv6_find_idev+0x102/0x170 [ 3168.663048][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.663048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.663048][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.663048][ T10] netlink_unicast+0x449/0x710 [ 3168.663048][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.663048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.663048][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.663048][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.663048][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.663048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.663048][ T10] [ 3168.665181][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3168.665541][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3168.665541][ T10] netdev_get_by_index+0x5e/0x80 [ 3168.665541][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3168.665541][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3168.665541][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3168.665541][ T10] ipv6_add_addr+0x411/0x2000 [ 3168.665541][ T10] inet6_addr_add+0x30e/0xa40 [ 3168.665541][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3168.665541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.665541][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.665541][ T10] netlink_unicast+0x449/0x710 [ 3168.665541][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.665541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.665541][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.665541][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.665541][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.665541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.665541][ T10] [ 3168.667927][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3168.667927][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3168.667927][ T10] ipv6_find_idev+0x102/0x170 [ 3168.667927][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.667927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.667927][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.667927][ T10] netlink_unicast+0x449/0x710 [ 3168.667927][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.667927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.667927][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.667927][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.667927][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.667927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.667927][ T10] [ 3168.669701][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3168.669701][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3168.669701][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3168.669701][ T10] ipv6_find_idev+0x102/0x170 [ 3168.669701][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3168.669701][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3168.669701][ T10] netlink_rcv_skb+0x130/0x360 [ 3168.669701][ T10] netlink_unicast+0x449/0x710 [ 3168.669701][ T10] netlink_sendmsg+0x723/0xbe0 [ 3168.669701][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3168.669701][ T10] ___sys_sendmsg+0xee/0x170 [ 3168.669701][ T10] __sys_sendmsg+0xcd/0x170 [ 3168.669701][ T10] do_syscall_64+0xc6/0x1e0 [ 3168.669701][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3168.669701][ T10] [ 3178.907773][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3178.908262][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3178.908262][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.908262][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.908262][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.908262][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.908262][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.908262][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.908262][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.908262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.908262][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.908262][ T10] netlink_unicast+0x449/0x710 [ 3178.908262][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.908262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.908262][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.908262][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.908262][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.908262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.908262][ T10] [ 3178.910504][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3178.910504][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.910504][ T10] ipv6_find_idev+0x102/0x170 [ 3178.910504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.910504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.910504][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.910504][ T10] netlink_unicast+0x449/0x710 [ 3178.910504][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.910504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.910504][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.910504][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.910504][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.910504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.910504][ T10] [ 3178.912184][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3178.912184][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.912184][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.912184][ T10] ipv6_find_idev+0x102/0x170 [ 3178.912184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.912184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.912184][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.912184][ T10] netlink_unicast+0x449/0x710 [ 3178.912184][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.912184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.912184][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.912184][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.912184][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.912184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.912184][ T10] [ 3178.914027][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3178.914316][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3178.914316][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.914316][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.914316][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.914316][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.914316][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.914316][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.914316][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.914316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.914316][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.914316][ T10] netlink_unicast+0x449/0x710 [ 3178.914316][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.914316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.914316][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.914316][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.914316][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.914316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.914316][ T10] [ 3178.916520][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3178.916520][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.916520][ T10] ipv6_find_idev+0x102/0x170 [ 3178.916520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.916520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.916520][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.916520][ T10] netlink_unicast+0x449/0x710 [ 3178.916520][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.916520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.916520][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.916520][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.916520][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.916520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.916520][ T10] [ 3178.918221][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3178.918221][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.918221][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.918221][ T10] ipv6_find_idev+0x102/0x170 [ 3178.918221][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.918221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.918221][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.918221][ T10] netlink_unicast+0x449/0x710 [ 3178.918221][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.918221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.918221][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.918221][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.918221][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.918221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.918221][ T10] [ 3178.920038][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3178.920320][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3178.920320][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.920320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.920320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.920320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.920320][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.920320][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.920320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.920320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.920320][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.920320][ T10] netlink_unicast+0x449/0x710 [ 3178.920320][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.920320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.920320][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.920320][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.920320][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.920320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.920320][ T10] [ 3178.922508][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3178.922508][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.922508][ T10] ipv6_find_idev+0x102/0x170 [ 3178.922508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.922508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.922508][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.922508][ T10] netlink_unicast+0x449/0x710 [ 3178.922508][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.922508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.922508][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.922508][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.922508][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.922508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.922508][ T10] [ 3178.924198][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3178.924198][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.924198][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.924198][ T10] ipv6_find_idev+0x102/0x170 [ 3178.924198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.924198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.924198][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.924198][ T10] netlink_unicast+0x449/0x710 [ 3178.924198][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.924198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.924198][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.924198][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.924198][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.924198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.924198][ T10] [ 3178.926049][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3178.926342][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3178.926342][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.926342][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.926342][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.926342][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.926342][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.926342][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.926342][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.926342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.926342][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.926342][ T10] netlink_unicast+0x449/0x710 [ 3178.926342][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.926342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.926342][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.926342][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.926342][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.926342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.926342][ T10] [ 3178.928494][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3178.928494][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.928494][ T10] ipv6_find_idev+0x102/0x170 [ 3178.928494][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.928494][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.928494][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.928494][ T10] netlink_unicast+0x449/0x710 [ 3178.928494][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.928494][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.928494][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.928494][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.928494][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.928494][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.928494][ T10] [ 3178.930162][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3178.930162][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.930162][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.930162][ T10] ipv6_find_idev+0x102/0x170 [ 3178.930162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.930162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.930162][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.930162][ T10] netlink_unicast+0x449/0x710 [ 3178.930162][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.930162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.930162][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.930162][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.930162][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.930162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.930162][ T10] [ 3178.932411][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3178.933039][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3178.933039][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.933039][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.933039][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.933039][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.933039][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.933039][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.933039][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.933039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.933039][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.933039][ T10] netlink_unicast+0x449/0x710 [ 3178.933039][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.933039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.933039][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.933039][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.933039][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.933039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.933039][ T10] [ 3178.935302][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3178.935302][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.935302][ T10] ipv6_find_idev+0x102/0x170 [ 3178.935302][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.935302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.935302][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.935302][ T10] netlink_unicast+0x449/0x710 [ 3178.935302][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.935302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.935302][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.935302][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.935302][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.935302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.935302][ T10] [ 3178.937013][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3178.937013][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.937013][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.937013][ T10] ipv6_find_idev+0x102/0x170 [ 3178.937013][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.937013][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.937013][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.937013][ T10] netlink_unicast+0x449/0x710 [ 3178.937013][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.937013][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.937013][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.937013][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.937013][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.937013][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.937013][ T10] [ 3178.938883][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3178.939189][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3178.939189][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.939189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.939189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.939189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.939189][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.939189][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.939189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.939189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.939189][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.939189][ T10] netlink_unicast+0x449/0x710 [ 3178.939189][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.939189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.939189][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.939189][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.939189][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.939189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.939189][ T10] [ 3178.941347][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3178.941347][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.941347][ T10] ipv6_find_idev+0x102/0x170 [ 3178.941347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.941347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.941347][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.941347][ T10] netlink_unicast+0x449/0x710 [ 3178.941347][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.941347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.941347][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.941347][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.941347][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.941347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.941347][ T10] [ 3178.943060][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3178.943060][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.943060][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.943060][ T10] ipv6_find_idev+0x102/0x170 [ 3178.943060][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.943060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.943060][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.943060][ T10] netlink_unicast+0x449/0x710 [ 3178.943060][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.943060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.943060][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.943060][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.943060][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.943060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.943060][ T10] [ 3178.945156][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3178.945451][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3178.945451][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.945451][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.945451][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.945451][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.945451][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.945451][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.945451][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.945451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.945451][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.945451][ T10] netlink_unicast+0x449/0x710 [ 3178.945451][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.945451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.945451][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.945451][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.945451][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.945451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.945451][ T10] [ 3178.947945][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3178.947945][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.947945][ T10] ipv6_find_idev+0x102/0x170 [ 3178.947945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.947945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.947945][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.947945][ T10] netlink_unicast+0x449/0x710 [ 3178.947945][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.947945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.947945][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.947945][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.947945][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.947945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.947945][ T10] [ 3178.949769][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3178.949769][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.949769][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.949769][ T10] ipv6_find_idev+0x102/0x170 [ 3178.949769][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.949769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.949769][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.949769][ T10] netlink_unicast+0x449/0x710 [ 3178.949769][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.949769][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.949769][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.949769][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.949769][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.949769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.949769][ T10] [ 3178.951831][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3178.952163][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3178.952163][ T10] netdev_get_by_index+0x5e/0x80 [ 3178.952163][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3178.952163][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3178.952163][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3178.952163][ T10] ipv6_add_addr+0x411/0x2000 [ 3178.952163][ T10] inet6_addr_add+0x30e/0xa40 [ 3178.952163][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3178.952163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.952163][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.952163][ T10] netlink_unicast+0x449/0x710 [ 3178.952163][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.952163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.952163][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.952163][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.952163][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.952163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.952163][ T10] [ 3178.954549][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3178.954549][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3178.954549][ T10] ipv6_find_idev+0x102/0x170 [ 3178.954549][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.954549][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.954549][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.954549][ T10] netlink_unicast+0x449/0x710 [ 3178.954549][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.954549][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.954549][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.954549][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.954549][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.954549][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.954549][ T10] [ 3178.956425][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3178.956425][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3178.956425][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3178.956425][ T10] ipv6_find_idev+0x102/0x170 [ 3178.956425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3178.956425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3178.956425][ T10] netlink_rcv_skb+0x130/0x360 [ 3178.956425][ T10] netlink_unicast+0x449/0x710 [ 3178.956425][ T10] netlink_sendmsg+0x723/0xbe0 [ 3178.956425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3178.956425][ T10] ___sys_sendmsg+0xee/0x170 [ 3178.956425][ T10] __sys_sendmsg+0xcd/0x170 [ 3178.956425][ T10] do_syscall_64+0xc6/0x1e0 [ 3178.956425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3178.956425][ T10] [ 3189.195749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3189.196173][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3189.196173][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.196173][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.196173][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.196173][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.196173][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.196173][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.196173][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.196173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.196173][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.196173][ T10] netlink_unicast+0x449/0x710 [ 3189.196173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.196173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.196173][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.196173][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.196173][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.196173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.196173][ T10] [ 3189.198364][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3189.198364][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.198364][ T10] ipv6_find_idev+0x102/0x170 [ 3189.198364][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.198364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.198364][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.198364][ T10] netlink_unicast+0x449/0x710 [ 3189.198364][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.198364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.198364][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.198364][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.198364][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.198364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.198364][ T10] [ 3189.200019][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3189.200019][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.200019][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.200019][ T10] ipv6_find_idev+0x102/0x170 [ 3189.200019][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.200019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.200019][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.200019][ T10] netlink_unicast+0x449/0x710 [ 3189.200019][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.200019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.200019][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.200019][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.200019][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.200019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.200019][ T10] [ 3189.201845][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3189.202136][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3189.202136][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.202136][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.202136][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.202136][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.202136][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.202136][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.202136][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.202136][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.202136][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.202136][ T10] netlink_unicast+0x449/0x710 [ 3189.202136][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.202136][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.202136][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.202136][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.202136][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.202136][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.202136][ T10] [ 3189.204348][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3189.204348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.204348][ T10] ipv6_find_idev+0x102/0x170 [ 3189.204348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.204348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.204348][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.204348][ T10] netlink_unicast+0x449/0x710 [ 3189.204348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.204348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.204348][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.204348][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.204348][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.204348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.204348][ T10] [ 3189.206069][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3189.206069][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.206069][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.206069][ T10] ipv6_find_idev+0x102/0x170 [ 3189.206069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.206069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.206069][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.206069][ T10] netlink_unicast+0x449/0x710 [ 3189.206069][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.206069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.206069][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.206069][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.206069][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.206069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.206069][ T10] [ 3189.207905][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3189.208206][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3189.208206][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.208206][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.208206][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.208206][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.208206][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.208206][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.208206][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.208206][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.208206][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.208206][ T10] netlink_unicast+0x449/0x710 [ 3189.208206][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.208206][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.208206][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.208206][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.208206][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.208206][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.208206][ T10] [ 3189.210430][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3189.210430][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.210430][ T10] ipv6_find_idev+0x102/0x170 [ 3189.210430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.210430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.210430][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.210430][ T10] netlink_unicast+0x449/0x710 [ 3189.210430][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.210430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.210430][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.210430][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.210430][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.210430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.210430][ T10] [ 3189.212124][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3189.212124][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.212124][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.212124][ T10] ipv6_find_idev+0x102/0x170 [ 3189.212124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.212124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.212124][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.212124][ T10] netlink_unicast+0x449/0x710 [ 3189.212124][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.212124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.212124][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.212124][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.212124][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.212124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.212124][ T10] [ 3189.214002][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3189.214282][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3189.214282][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.214282][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.214282][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.214282][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.214282][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.214282][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.214282][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.214282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.214282][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.214282][ T10] netlink_unicast+0x449/0x710 [ 3189.214282][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.214282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.214282][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.214282][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.214282][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.214282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.214282][ T10] [ 3189.216472][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3189.216472][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.216472][ T10] ipv6_find_idev+0x102/0x170 [ 3189.216472][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.216472][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.216472][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.216472][ T10] netlink_unicast+0x449/0x710 [ 3189.216472][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.216472][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.216472][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.216472][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.216472][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.216472][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.216472][ T10] [ 3189.218131][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3189.218131][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.218131][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.218131][ T10] ipv6_find_idev+0x102/0x170 [ 3189.218131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.218131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.218131][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.218131][ T10] netlink_unicast+0x449/0x710 [ 3189.218131][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.218131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.218131][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.218131][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.218131][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.218131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.218131][ T10] [ 3189.220365][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3189.220648][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3189.220648][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.220648][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.220648][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.220648][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.220648][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.220648][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.220648][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.220648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.220648][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.220648][ T10] netlink_unicast+0x449/0x710 [ 3189.220648][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.220648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.220648][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.220648][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.220648][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.220648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.220648][ T10] [ 3189.222847][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3189.222847][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.222847][ T10] ipv6_find_idev+0x102/0x170 [ 3189.222847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.222847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.222847][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.222847][ T10] netlink_unicast+0x449/0x710 [ 3189.222847][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.222847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.222847][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.222847][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.222847][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.222847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.222847][ T10] [ 3189.224504][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3189.224504][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.224504][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.224504][ T10] ipv6_find_idev+0x102/0x170 [ 3189.224504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.224504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.224504][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.224504][ T10] netlink_unicast+0x449/0x710 [ 3189.224504][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.224504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.224504][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.224504][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.224504][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.224504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.224504][ T10] [ 3189.226365][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3189.226642][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3189.226642][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.226642][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.226642][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.226642][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.226642][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.226642][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.226642][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.226642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.226642][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.226642][ T10] netlink_unicast+0x449/0x710 [ 3189.226642][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.226642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.226642][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.226642][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.226642][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.226642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.226642][ T10] [ 3189.228971][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3189.228971][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.228971][ T10] ipv6_find_idev+0x102/0x170 [ 3189.228971][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.228971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.228971][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.228971][ T10] netlink_unicast+0x449/0x710 [ 3189.228971][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.228971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.228971][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.228971][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.228971][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.228971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.228971][ T10] [ 3189.230867][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3189.230867][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.230867][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.230867][ T10] ipv6_find_idev+0x102/0x170 [ 3189.230867][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.230867][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.230867][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.230867][ T10] netlink_unicast+0x449/0x710 [ 3189.230867][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.230867][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.230867][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.230867][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.230867][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.230867][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.230867][ T10] [ 3189.232944][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3189.233234][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3189.233234][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.233234][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.233234][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.233234][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.233234][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.233234][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.233234][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.233234][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.233234][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.233234][ T10] netlink_unicast+0x449/0x710 [ 3189.233234][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.233234][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.233234][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.233234][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.233234][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.233234][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.233234][ T10] [ 3189.235670][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3189.235670][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.235670][ T10] ipv6_find_idev+0x102/0x170 [ 3189.235670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.235670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.235670][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.235670][ T10] netlink_unicast+0x449/0x710 [ 3189.235670][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.235670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.235670][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.235670][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.235670][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.235670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.235670][ T10] [ 3189.237563][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3189.237563][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.237563][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.237563][ T10] ipv6_find_idev+0x102/0x170 [ 3189.237563][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.237563][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.237563][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.237563][ T10] netlink_unicast+0x449/0x710 [ 3189.237563][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.237563][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.237563][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.237563][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.237563][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.237563][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.237563][ T10] [ 3189.239653][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3189.239937][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3189.239937][ T10] netdev_get_by_index+0x5e/0x80 [ 3189.239937][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3189.239937][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3189.239937][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3189.239937][ T10] ipv6_add_addr+0x411/0x2000 [ 3189.239937][ T10] inet6_addr_add+0x30e/0xa40 [ 3189.239937][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3189.239937][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.239937][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.239937][ T10] netlink_unicast+0x449/0x710 [ 3189.239937][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.239937][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.239937][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.239937][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.239937][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.239937][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.239937][ T10] [ 3189.242427][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3189.242427][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3189.242427][ T10] ipv6_find_idev+0x102/0x170 [ 3189.242427][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.242427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.242427][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.242427][ T10] netlink_unicast+0x449/0x710 [ 3189.242427][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.242427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.242427][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.242427][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.242427][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.242427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.242427][ T10] [ 3189.244317][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3189.244317][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3189.244317][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3189.244317][ T10] ipv6_find_idev+0x102/0x170 [ 3189.244317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3189.244317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3189.244317][ T10] netlink_rcv_skb+0x130/0x360 [ 3189.244317][ T10] netlink_unicast+0x449/0x710 [ 3189.244317][ T10] netlink_sendmsg+0x723/0xbe0 [ 3189.244317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3189.244317][ T10] ___sys_sendmsg+0xee/0x170 [ 3189.244317][ T10] __sys_sendmsg+0xcd/0x170 [ 3189.244317][ T10] do_syscall_64+0xc6/0x1e0 [ 3189.244317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3189.244317][ T10] [ 3196.195724][ T42] INFO: task modprobe:14797 blocked for more than 122 seconds. [ 3196.196198][ T42] Not tainted 6.8.0-virtme #1 [ 3196.196326][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3196.196559][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 3196.196899][ T42] Call Trace: [ 3196.197002][ T42] [ 3196.197080][ T42] __schedule+0x705/0x1ac0 [ 3196.197219][ T42] ? __pfx___schedule+0x10/0x10 [ 3196.197349][ T42] ? schedule+0x1a5/0x210 [ 3196.197450][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3196.197580][ T42] ? mark_lock+0x38/0x3e0 [ 3196.197687][ T42] ? do_raw_spin_lock+0x131/0x270 [ 3196.198182][ T42] ? schedule+0x1a5/0x210 [ 3196.198291][ T42] schedule+0xdf/0x210 [ 3196.198399][ T42] schedule_preempt_disabled+0x15/0x30 [ 3196.198522][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 3196.198670][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 3196.198833][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3196.198972][ T42] ? lock_acquire+0x1c1/0x220 [ 3196.199095][ T42] ? register_pernet_subsys+0x1a/0x50 [ 3196.199230][ T42] down_write+0x1c9/0x200 [ 3196.199328][ T42] ? __pfx_down_write+0x10/0x10 [ 3196.199459][ T42] ? __lock_release+0x103/0x460 [ 3196.199587][ T42] ? __create_object+0x5e/0xb0 [ 3196.199724][ T42] ? __pfx___lock_release+0x10/0x10 [ 3196.199852][ T42] register_pernet_subsys+0x1a/0x50 [ 3196.199980][ T42] tcf_register_action+0xa3/0x600 [ 3196.200106][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 3196.200277][ T42] do_one_initcall+0xc8/0x3f0 [ 3196.200409][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 3196.200544][ T42] ? __create_object+0x5e/0xb0 [ 3196.200686][ T42] ? kasan_unpoison+0x27/0x60 [ 3196.200817][ T42] do_init_module+0x233/0x740 [ 3196.200953][ T42] load_module+0x16b5/0x2350 [ 3196.201091][ T42] ? __pfx_load_module+0x10/0x10 [ 3196.201229][ T42] ? kernel_read_file+0x3d2/0x520 [ 3196.201362][ T42] ? kernel_read_file+0x300/0x520 [ 3196.201490][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 3196.201632][ T42] ? init_module_from_file+0xd2/0x130 [ 3196.201780][ T42] init_module_from_file+0xd2/0x130 [ 3196.201906][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 3196.202069][ T42] ? __lock_release+0x103/0x460 [ 3196.202196][ T42] ? idempotent_init_module+0x32a/0x620 [ 3196.202330][ T42] ? idempotent_init_module+0x32a/0x620 [ 3196.202455][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 3196.202582][ T42] idempotent_init_module+0x342/0x620 [ 3196.202727][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 3196.202906][ T42] __x64_sys_finit_module+0xbe/0x130 [ 3196.203032][ T42] do_syscall_64+0xc6/0x1e0 [ 3196.203159][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3196.203316][ T42] RIP: 0033:0x7f188f3c6e5d [ 3196.203450][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3196.203657][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 3196.203855][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 3196.204040][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 3196.204226][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 3196.204412][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 3196.204618][ T42] [ 3196.204727][ T42] [ 3196.204727][ T42] Showing all locks held in the system: [ 3196.204909][ T42] 3 locks held by kworker/u16:0/10: [ 3196.205035][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3196.205305][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3196.205525][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 3196.205779][ T42] 1 lock held by khungtaskd/42: [ 3196.205913][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 3196.206149][ T42] 2 locks held by kworker/u20:2/10034: [ 3196.206267][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3196.206514][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3196.206808][ T42] 1 lock held by modprobe/14797: [ 3196.206934][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 3196.207189][ T42] [ 3196.207255][ T42] ============================================= [ 3196.207255][ T42] [ 3199.419759][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3199.420218][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3199.420218][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.420218][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.420218][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.420218][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.420218][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.420218][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.420218][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.420218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.420218][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.420218][ T10] netlink_unicast+0x449/0x710 [ 3199.420218][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.420218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.420218][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.420218][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.420218][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.420218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.420218][ T10] [ 3199.422436][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3199.422436][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.422436][ T10] ipv6_find_idev+0x102/0x170 [ 3199.422436][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.422436][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.422436][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.422436][ T10] netlink_unicast+0x449/0x710 [ 3199.422436][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.422436][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.422436][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.422436][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.422436][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.422436][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.422436][ T10] [ 3199.424176][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3199.424176][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.424176][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.424176][ T10] ipv6_find_idev+0x102/0x170 [ 3199.424176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.424176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.424176][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.424176][ T10] netlink_unicast+0x449/0x710 [ 3199.424176][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.424176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.424176][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.424176][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.424176][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.424176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.424176][ T10] [ 3199.426091][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3199.426410][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3199.426410][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.426410][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.426410][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.426410][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.426410][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.426410][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.426410][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.426410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.426410][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.426410][ T10] netlink_unicast+0x449/0x710 [ 3199.426410][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.426410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.426410][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.426410][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.426410][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.426410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.426410][ T10] [ 3199.428679][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3199.428679][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.428679][ T10] ipv6_find_idev+0x102/0x170 [ 3199.428679][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.428679][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.428679][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.428679][ T10] netlink_unicast+0x449/0x710 [ 3199.428679][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.428679][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.428679][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.428679][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.428679][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.428679][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.428679][ T10] [ 3199.430384][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3199.430384][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.430384][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.430384][ T10] ipv6_find_idev+0x102/0x170 [ 3199.430384][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.430384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.430384][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.430384][ T10] netlink_unicast+0x449/0x710 [ 3199.430384][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.430384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.430384][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.430384][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.430384][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.430384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.430384][ T10] [ 3199.432279][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3199.432575][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3199.432575][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.432575][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.432575][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.432575][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.432575][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.432575][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.432575][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.432575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.432575][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.432575][ T10] netlink_unicast+0x449/0x710 [ 3199.432575][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.432575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.432575][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.432575][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.432575][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.432575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.432575][ T10] [ 3199.434808][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3199.434808][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.434808][ T10] ipv6_find_idev+0x102/0x170 [ 3199.434808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.434808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.434808][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.434808][ T10] netlink_unicast+0x449/0x710 [ 3199.434808][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.434808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.434808][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.434808][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.434808][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.434808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.434808][ T10] [ 3199.436530][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3199.436530][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.436530][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.436530][ T10] ipv6_find_idev+0x102/0x170 [ 3199.436530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.436530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.436530][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.436530][ T10] netlink_unicast+0x449/0x710 [ 3199.436530][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.436530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.436530][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.436530][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.436530][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.436530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.436530][ T10] [ 3199.438446][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3199.439177][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3199.439177][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.439177][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.439177][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.439177][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.439177][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.439177][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.439177][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.439177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.439177][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.439177][ T10] netlink_unicast+0x449/0x710 [ 3199.439177][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.439177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.439177][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.439177][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.439177][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.439177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.439177][ T10] [ 3199.441483][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3199.441483][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.441483][ T10] ipv6_find_idev+0x102/0x170 [ 3199.441483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.441483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.441483][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.441483][ T10] netlink_unicast+0x449/0x710 [ 3199.441483][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.441483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.441483][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.441483][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.441483][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.441483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.441483][ T10] [ 3199.443160][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3199.443160][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.443160][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.443160][ T10] ipv6_find_idev+0x102/0x170 [ 3199.443160][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.443160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.443160][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.443160][ T10] netlink_unicast+0x449/0x710 [ 3199.443160][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.443160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.443160][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.443160][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.443160][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.443160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.443160][ T10] [ 3199.445040][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3199.445398][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3199.445398][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.445398][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.445398][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.445398][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.445398][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.445398][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.445398][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.445398][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.445398][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.445398][ T10] netlink_unicast+0x449/0x710 [ 3199.445398][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.445398][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.445398][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.445398][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.445398][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.445398][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.445398][ T10] [ 3199.447665][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3199.447665][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.447665][ T10] ipv6_find_idev+0x102/0x170 [ 3199.447665][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.447665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.447665][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.447665][ T10] netlink_unicast+0x449/0x710 [ 3199.447665][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.447665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.447665][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.447665][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.447665][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.447665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.447665][ T10] [ 3199.449396][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3199.449396][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.449396][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.449396][ T10] ipv6_find_idev+0x102/0x170 [ 3199.449396][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.449396][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.449396][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.449396][ T10] netlink_unicast+0x449/0x710 [ 3199.449396][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.449396][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.449396][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.449396][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.449396][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.449396][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.449396][ T10] [ 3199.451269][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3199.451607][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3199.451607][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.451607][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.451607][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.451607][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.451607][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.451607][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.451607][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.451607][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.451607][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.451607][ T10] netlink_unicast+0x449/0x710 [ 3199.451607][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.451607][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.451607][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.451607][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.451607][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.451607][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.451607][ T10] [ 3199.453864][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3199.453864][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.453864][ T10] ipv6_find_idev+0x102/0x170 [ 3199.453864][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.453864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.453864][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.453864][ T10] netlink_unicast+0x449/0x710 [ 3199.453864][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.453864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.453864][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.453864][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.453864][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.453864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.453864][ T10] [ 3199.455725][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3199.455725][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.455725][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.455725][ T10] ipv6_find_idev+0x102/0x170 [ 3199.455725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.455725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.455725][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.455725][ T10] netlink_unicast+0x449/0x710 [ 3199.455725][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.455725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.455725][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.455725][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.455725][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.455725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.455725][ T10] [ 3199.457952][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3199.458287][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3199.458287][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.458287][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.458287][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.458287][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.458287][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.458287][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.458287][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.458287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.458287][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.458287][ T10] netlink_unicast+0x449/0x710 [ 3199.458287][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.458287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.458287][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.458287][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.458287][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.458287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.458287][ T10] [ 3199.460679][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3199.460679][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.460679][ T10] ipv6_find_idev+0x102/0x170 [ 3199.460679][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.460679][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.460679][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.460679][ T10] netlink_unicast+0x449/0x710 [ 3199.460679][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.460679][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.460679][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.460679][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.460679][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.460679][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.460679][ T10] [ 3199.462589][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3199.462589][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.462589][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.462589][ T10] ipv6_find_idev+0x102/0x170 [ 3199.462589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.462589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.462589][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.462589][ T10] netlink_unicast+0x449/0x710 [ 3199.462589][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.462589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.462589][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.462589][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.462589][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.462589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.462589][ T10] [ 3199.464766][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3199.465125][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3199.465125][ T10] netdev_get_by_index+0x5e/0x80 [ 3199.465125][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3199.465125][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3199.465125][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3199.465125][ T10] ipv6_add_addr+0x411/0x2000 [ 3199.465125][ T10] inet6_addr_add+0x30e/0xa40 [ 3199.465125][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3199.465125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.465125][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.465125][ T10] netlink_unicast+0x449/0x710 [ 3199.465125][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.465125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.465125][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.465125][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.465125][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.465125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.465125][ T10] [ 3199.467535][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3199.467535][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3199.467535][ T10] ipv6_find_idev+0x102/0x170 [ 3199.467535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.467535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.467535][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.467535][ T10] netlink_unicast+0x449/0x710 [ 3199.467535][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.467535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.467535][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.467535][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.467535][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.467535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.467535][ T10] [ 3199.469572][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3199.469572][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3199.469572][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3199.469572][ T10] ipv6_find_idev+0x102/0x170 [ 3199.469572][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3199.469572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3199.469572][ T10] netlink_rcv_skb+0x130/0x360 [ 3199.469572][ T10] netlink_unicast+0x449/0x710 [ 3199.469572][ T10] netlink_sendmsg+0x723/0xbe0 [ 3199.469572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3199.469572][ T10] ___sys_sendmsg+0xee/0x170 [ 3199.469572][ T10] __sys_sendmsg+0xcd/0x170 [ 3199.469572][ T10] do_syscall_64+0xc6/0x1e0 [ 3199.469572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3199.469572][ T10] [ 3209.707753][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3209.708241][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3209.708241][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.708241][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.708241][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.708241][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.708241][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.708241][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.708241][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.708241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.708241][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.708241][ T10] netlink_unicast+0x449/0x710 [ 3209.708241][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.708241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.708241][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.708241][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.708241][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.708241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.708241][ T10] [ 3209.710577][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3209.710577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.710577][ T10] ipv6_find_idev+0x102/0x170 [ 3209.710577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.710577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.710577][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.710577][ T10] netlink_unicast+0x449/0x710 [ 3209.710577][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.710577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.710577][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.710577][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.710577][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.710577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.710577][ T10] [ 3209.712327][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3209.712327][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.712327][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.712327][ T10] ipv6_find_idev+0x102/0x170 [ 3209.712327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.712327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.712327][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.712327][ T10] netlink_unicast+0x449/0x710 [ 3209.712327][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.712327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.712327][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.712327][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.712327][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.712327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.712327][ T10] [ 3209.714236][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3209.714563][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3209.714563][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.714563][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.714563][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.714563][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.714563][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.714563][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.714563][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.714563][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.714563][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.714563][ T10] netlink_unicast+0x449/0x710 [ 3209.714563][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.714563][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.714563][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.714563][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.714563][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.714563][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.714563][ T10] [ 3209.716835][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3209.716835][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.716835][ T10] ipv6_find_idev+0x102/0x170 [ 3209.716835][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.716835][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.716835][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.716835][ T10] netlink_unicast+0x449/0x710 [ 3209.716835][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.716835][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.716835][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.716835][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.716835][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.716835][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.716835][ T10] [ 3209.718522][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3209.718522][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.718522][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.718522][ T10] ipv6_find_idev+0x102/0x170 [ 3209.718522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.718522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.718522][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.718522][ T10] netlink_unicast+0x449/0x710 [ 3209.718522][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.718522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.718522][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.718522][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.718522][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.718522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.718522][ T10] [ 3209.720428][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3209.720744][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3209.720744][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.720744][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.720744][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.720744][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.720744][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.720744][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.720744][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.720744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.720744][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.720744][ T10] netlink_unicast+0x449/0x710 [ 3209.720744][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.720744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.720744][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.720744][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.720744][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.720744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.720744][ T10] [ 3209.723017][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3209.723017][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.723017][ T10] ipv6_find_idev+0x102/0x170 [ 3209.723017][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.723017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.723017][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.723017][ T10] netlink_unicast+0x449/0x710 [ 3209.723017][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.723017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.723017][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.723017][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.723017][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.723017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.723017][ T10] [ 3209.724781][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3209.724781][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.724781][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.724781][ T10] ipv6_find_idev+0x102/0x170 [ 3209.724781][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.724781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.724781][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.724781][ T10] netlink_unicast+0x449/0x710 [ 3209.724781][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.724781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.724781][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.724781][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.724781][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.724781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.724781][ T10] [ 3209.726703][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3209.727004][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3209.727004][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.727004][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.727004][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.727004][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.727004][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.727004][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.727004][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.727004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.727004][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.727004][ T10] netlink_unicast+0x449/0x710 [ 3209.727004][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.727004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.727004][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.727004][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.727004][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.727004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.727004][ T10] [ 3209.729219][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3209.729219][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.729219][ T10] ipv6_find_idev+0x102/0x170 [ 3209.729219][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.729219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.729219][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.729219][ T10] netlink_unicast+0x449/0x710 [ 3209.729219][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.729219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.729219][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.729219][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.729219][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.729219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.729219][ T10] [ 3209.730877][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3209.730877][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.730877][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.730877][ T10] ipv6_find_idev+0x102/0x170 [ 3209.730877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.730877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.730877][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.730877][ T10] netlink_unicast+0x449/0x710 [ 3209.730877][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.730877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.730877][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.730877][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.730877][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.730877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.730877][ T10] [ 3209.733142][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3209.733792][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3209.733792][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.733792][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.733792][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.733792][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.733792][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.733792][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.733792][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.733792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.733792][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.733792][ T10] netlink_unicast+0x449/0x710 [ 3209.733792][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.733792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.733792][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.733792][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.733792][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.733792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.733792][ T10] [ 3209.736067][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3209.736067][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.736067][ T10] ipv6_find_idev+0x102/0x170 [ 3209.736067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.736067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.736067][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.736067][ T10] netlink_unicast+0x449/0x710 [ 3209.736067][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.736067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.736067][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.736067][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.736067][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.736067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.736067][ T10] [ 3209.737789][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3209.737789][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.737789][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.737789][ T10] ipv6_find_idev+0x102/0x170 [ 3209.737789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.737789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.737789][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.737789][ T10] netlink_unicast+0x449/0x710 [ 3209.737789][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.737789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.737789][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.737789][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.737789][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.737789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.737789][ T10] [ 3209.739729][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3209.740019][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3209.740019][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.740019][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.740019][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.740019][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.740019][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.740019][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.740019][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.740019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.740019][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.740019][ T10] netlink_unicast+0x449/0x710 [ 3209.740019][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.740019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.740019][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.740019][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.740019][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.740019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.740019][ T10] [ 3209.742257][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3209.742257][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.742257][ T10] ipv6_find_idev+0x102/0x170 [ 3209.742257][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.742257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.742257][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.742257][ T10] netlink_unicast+0x449/0x710 [ 3209.742257][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.742257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.742257][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.742257][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.742257][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.742257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.742257][ T10] [ 3209.744045][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3209.744045][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.744045][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.744045][ T10] ipv6_find_idev+0x102/0x170 [ 3209.744045][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.744045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.744045][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.744045][ T10] netlink_unicast+0x449/0x710 [ 3209.744045][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.744045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.744045][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.744045][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.744045][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.744045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.744045][ T10] [ 3209.746173][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3209.746520][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3209.746520][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.746520][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.746520][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.746520][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.746520][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.746520][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.746520][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.746520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.746520][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.746520][ T10] netlink_unicast+0x449/0x710 [ 3209.746520][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.746520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.746520][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.746520][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.746520][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.746520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.746520][ T10] [ 3209.749007][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3209.749007][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.749007][ T10] ipv6_find_idev+0x102/0x170 [ 3209.749007][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.749007][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.749007][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.749007][ T10] netlink_unicast+0x449/0x710 [ 3209.749007][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.749007][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.749007][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.749007][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.749007][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.749007][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.749007][ T10] [ 3209.750940][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3209.750940][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.750940][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.750940][ T10] ipv6_find_idev+0x102/0x170 [ 3209.750940][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.750940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.750940][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.750940][ T10] netlink_unicast+0x449/0x710 [ 3209.750940][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.750940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.750940][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.750940][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.750940][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.750940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.750940][ T10] [ 3209.753114][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3209.753447][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3209.753447][ T10] netdev_get_by_index+0x5e/0x80 [ 3209.753447][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3209.753447][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3209.753447][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3209.753447][ T10] ipv6_add_addr+0x411/0x2000 [ 3209.753447][ T10] inet6_addr_add+0x30e/0xa40 [ 3209.753447][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3209.753447][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.753447][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.753447][ T10] netlink_unicast+0x449/0x710 [ 3209.753447][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.753447][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.753447][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.753447][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.753447][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.753447][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.753447][ T10] [ 3209.755863][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3209.755863][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3209.755863][ T10] ipv6_find_idev+0x102/0x170 [ 3209.755863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.755863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.755863][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.755863][ T10] netlink_unicast+0x449/0x710 [ 3209.755863][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.755863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.755863][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.755863][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.755863][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.755863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.755863][ T10] [ 3209.757722][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3209.757722][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3209.757722][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3209.757722][ T10] ipv6_find_idev+0x102/0x170 [ 3209.757722][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3209.757722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3209.757722][ T10] netlink_rcv_skb+0x130/0x360 [ 3209.757722][ T10] netlink_unicast+0x449/0x710 [ 3209.757722][ T10] netlink_sendmsg+0x723/0xbe0 [ 3209.757722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3209.757722][ T10] ___sys_sendmsg+0xee/0x170 [ 3209.757722][ T10] __sys_sendmsg+0xcd/0x170 [ 3209.757722][ T10] do_syscall_64+0xc6/0x1e0 [ 3209.757722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3209.757722][ T10] [ 3219.995775][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3219.996183][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3219.996183][ T10] netdev_get_by_index+0x5e/0x80 [ 3219.996183][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3219.996183][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3219.996183][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3219.996183][ T10] ipv6_add_addr+0x411/0x2000 [ 3219.996183][ T10] inet6_addr_add+0x30e/0xa40 [ 3219.996183][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3219.996183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3219.996183][ T10] netlink_rcv_skb+0x130/0x360 [ 3219.996183][ T10] netlink_unicast+0x449/0x710 [ 3219.996183][ T10] netlink_sendmsg+0x723/0xbe0 [ 3219.996183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3219.996183][ T10] ___sys_sendmsg+0xee/0x170 [ 3219.996183][ T10] __sys_sendmsg+0xcd/0x170 [ 3219.996183][ T10] do_syscall_64+0xc6/0x1e0 [ 3219.996183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3219.996183][ T10] [ 3219.998406][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3219.998406][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3219.998406][ T10] ipv6_find_idev+0x102/0x170 [ 3219.998406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3219.998406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3219.998406][ T10] netlink_rcv_skb+0x130/0x360 [ 3219.998406][ T10] netlink_unicast+0x449/0x710 [ 3219.998406][ T10] netlink_sendmsg+0x723/0xbe0 [ 3219.998406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3219.998406][ T10] ___sys_sendmsg+0xee/0x170 [ 3219.998406][ T10] __sys_sendmsg+0xcd/0x170 [ 3219.998406][ T10] do_syscall_64+0xc6/0x1e0 [ 3219.998406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3219.998406][ T10] [ 3220.000162][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3220.000162][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.000162][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.000162][ T10] ipv6_find_idev+0x102/0x170 [ 3220.000162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.000162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.000162][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.000162][ T10] netlink_unicast+0x449/0x710 [ 3220.000162][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.000162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.000162][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.000162][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.000162][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.000162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.000162][ T10] [ 3220.002011][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3220.002319][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3220.002319][ T10] netdev_get_by_index+0x5e/0x80 [ 3220.002319][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3220.002319][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3220.002319][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3220.002319][ T10] ipv6_add_addr+0x411/0x2000 [ 3220.002319][ T10] inet6_addr_add+0x30e/0xa40 [ 3220.002319][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3220.002319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.002319][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.002319][ T10] netlink_unicast+0x449/0x710 [ 3220.002319][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.002319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.002319][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.002319][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.002319][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.002319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.002319][ T10] [ 3220.004519][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3220.004519][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3220.004519][ T10] ipv6_find_idev+0x102/0x170 [ 3220.004519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.004519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.004519][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.004519][ T10] netlink_unicast+0x449/0x710 [ 3220.004519][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.004519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.004519][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.004519][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.004519][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.004519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.004519][ T10] [ 3220.006231][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3220.006231][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.006231][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.006231][ T10] ipv6_find_idev+0x102/0x170 [ 3220.006231][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.006231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.006231][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.006231][ T10] netlink_unicast+0x449/0x710 [ 3220.006231][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.006231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.006231][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.006231][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.006231][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.006231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.006231][ T10] [ 3220.008058][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3220.008354][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3220.008354][ T10] netdev_get_by_index+0x5e/0x80 [ 3220.008354][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3220.008354][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3220.008354][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3220.008354][ T10] ipv6_add_addr+0x411/0x2000 [ 3220.008354][ T10] inet6_addr_add+0x30e/0xa40 [ 3220.008354][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3220.008354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.008354][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.008354][ T10] netlink_unicast+0x449/0x710 [ 3220.008354][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.008354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.008354][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.008354][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.008354][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.008354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.008354][ T10] [ 3220.010568][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3220.010568][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3220.010568][ T10] ipv6_find_idev+0x102/0x170 [ 3220.010568][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.010568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.010568][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.010568][ T10] netlink_unicast+0x449/0x710 [ 3220.010568][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.010568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.010568][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.010568][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.010568][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.010568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.010568][ T10] [ 3220.012234][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3220.012234][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.012234][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.012234][ T10] ipv6_find_idev+0x102/0x170 [ 3220.012234][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.012234][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.012234][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.012234][ T10] netlink_unicast+0x449/0x710 [ 3220.012234][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.012234][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.012234][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.012234][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.012234][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.012234][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.012234][ T10] [ 3220.014070][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3220.014371][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3220.014371][ T10] netdev_get_by_index+0x5e/0x80 [ 3220.014371][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3220.014371][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3220.014371][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3220.014371][ T10] ipv6_add_addr+0x411/0x2000 [ 3220.014371][ T10] inet6_addr_add+0x30e/0xa40 [ 3220.014371][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3220.014371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.014371][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.014371][ T10] netlink_unicast+0x449/0x710 [ 3220.014371][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.014371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.014371][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.014371][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.014371][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.014371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.014371][ T10] [ 3220.016575][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3220.016575][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3220.016575][ T10] ipv6_find_idev+0x102/0x170 [ 3220.016575][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.016575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.016575][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.016575][ T10] netlink_unicast+0x449/0x710 [ 3220.016575][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.016575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.016575][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.016575][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.016575][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.016575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.016575][ T10] [ 3220.018253][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3220.018253][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.018253][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.018253][ T10] ipv6_find_idev+0x102/0x170 [ 3220.018253][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.018253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.018253][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.018253][ T10] netlink_unicast+0x449/0x710 [ 3220.018253][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.018253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.018253][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.018253][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.018253][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.018253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.018253][ T10] [ 3220.020123][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3220.020404][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3220.020404][ T10] netdev_get_by_index+0x5e/0x80 [ 3220.020404][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3220.020404][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3220.020404][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3220.020404][ T10] ipv6_add_addr+0x411/0x2000 [ 3220.020404][ T10] inet6_addr_add+0x30e/0xa40 [ 3220.020404][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3220.020404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.020404][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.020404][ T10] netlink_unicast+0x449/0x710 [ 3220.020404][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.020404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.020404][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.020404][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.020404][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.020404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.020404][ T10] [ 3220.022607][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3220.022607][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3220.022607][ T10] ipv6_find_idev+0x102/0x170 [ 3220.022607][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.022607][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.022607][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.022607][ T10] netlink_unicast+0x449/0x710 [ 3220.022607][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.022607][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.022607][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.022607][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.022607][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.022607][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.022607][ T10] [ 3220.024347][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3220.024347][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.024347][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.024347][ T10] ipv6_find_idev+0x102/0x170 [ 3220.024347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.024347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.024347][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.024347][ T10] netlink_unicast+0x449/0x710 [ 3220.024347][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.024347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.024347][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.024347][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.024347][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.024347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.024347][ T10] [ 3220.026446][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3220.026823][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3220.026823][ T10] netdev_get_by_index+0x5e/0x80 [ 3220.026823][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3220.026823][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3220.026823][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3220.026823][ T10] ipv6_add_addr+0x411/0x2000 [ 3220.026823][ T10] inet6_addr_add+0x30e/0xa40 [ 3220.026823][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3220.026823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.026823][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.026823][ T10] netlink_unicast+0x449/0x710 [ 3220.026823][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.026823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.026823][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.026823][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.026823][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.026823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.026823][ T10] [ 3220.029178][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3220.029178][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3220.029178][ T10] ipv6_find_idev+0x102/0x170 [ 3220.029178][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.029178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.029178][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.029178][ T10] netlink_unicast+0x449/0x710 [ 3220.029178][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.029178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.029178][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.029178][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.029178][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.029178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.029178][ T10] [ 3220.031045][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3220.031045][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.031045][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.031045][ T10] ipv6_find_idev+0x102/0x170 [ 3220.031045][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.031045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.031045][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.031045][ T10] netlink_unicast+0x449/0x710 [ 3220.031045][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.031045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.031045][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.031045][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.031045][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.031045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.031045][ T10] [ 3220.033167][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3220.033457][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3220.033457][ T10] netdev_get_by_index+0x5e/0x80 [ 3220.033457][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3220.033457][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3220.033457][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3220.033457][ T10] ipv6_add_addr+0x411/0x2000 [ 3220.033457][ T10] inet6_addr_add+0x30e/0xa40 [ 3220.033457][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3220.033457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.033457][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.033457][ T10] netlink_unicast+0x449/0x710 [ 3220.033457][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.033457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.033457][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.033457][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.033457][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.033457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.033457][ T10] [ 3220.035837][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3220.035837][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3220.035837][ T10] ipv6_find_idev+0x102/0x170 [ 3220.035837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.035837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.035837][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.035837][ T10] netlink_unicast+0x449/0x710 [ 3220.035837][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.035837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.035837][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.035837][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.035837][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.035837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.035837][ T10] [ 3220.037672][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3220.037672][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.037672][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.037672][ T10] ipv6_find_idev+0x102/0x170 [ 3220.037672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.037672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.037672][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.037672][ T10] netlink_unicast+0x449/0x710 [ 3220.037672][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.037672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.037672][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.037672][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.037672][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.037672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.037672][ T10] [ 3220.039722][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3220.040016][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3220.040016][ T10] netdev_get_by_index+0x5e/0x80 [ 3220.040016][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3220.040016][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3220.040016][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3220.040016][ T10] ipv6_add_addr+0x411/0x2000 [ 3220.040016][ T10] inet6_addr_add+0x30e/0xa40 [ 3220.040016][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3220.040016][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.040016][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.040016][ T10] netlink_unicast+0x449/0x710 [ 3220.040016][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.040016][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.040016][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.040016][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.040016][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.040016][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.040016][ T10] [ 3220.042508][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3220.042508][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3220.042508][ T10] ipv6_find_idev+0x102/0x170 [ 3220.042508][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.042508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.042508][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.042508][ T10] netlink_unicast+0x449/0x710 [ 3220.042508][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.042508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.042508][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.042508][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.042508][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.042508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.042508][ T10] [ 3220.044382][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3220.044382][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3220.044382][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3220.044382][ T10] ipv6_find_idev+0x102/0x170 [ 3220.044382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3220.044382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3220.044382][ T10] netlink_rcv_skb+0x130/0x360 [ 3220.044382][ T10] netlink_unicast+0x449/0x710 [ 3220.044382][ T10] netlink_sendmsg+0x723/0xbe0 [ 3220.044382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3220.044382][ T10] ___sys_sendmsg+0xee/0x170 [ 3220.044382][ T10] __sys_sendmsg+0xcd/0x170 [ 3220.044382][ T10] do_syscall_64+0xc6/0x1e0 [ 3220.044382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3220.044382][ T10] [ 3230.283773][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3230.284264][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3230.284264][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.284264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.284264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.284264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.284264][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.284264][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.284264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.284264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.284264][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.284264][ T10] netlink_unicast+0x449/0x710 [ 3230.284264][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.284264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.284264][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.284264][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.284264][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.284264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.284264][ T10] [ 3230.286541][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3230.286541][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.286541][ T10] ipv6_find_idev+0x102/0x170 [ 3230.286541][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.286541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.286541][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.286541][ T10] netlink_unicast+0x449/0x710 [ 3230.286541][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.286541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.286541][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.286541][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.286541][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.286541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.286541][ T10] [ 3230.288262][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3230.288262][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.288262][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.288262][ T10] ipv6_find_idev+0x102/0x170 [ 3230.288262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.288262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.288262][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.288262][ T10] netlink_unicast+0x449/0x710 [ 3230.288262][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.288262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.288262][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.288262][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.288262][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.288262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.288262][ T10] [ 3230.290107][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3230.290400][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3230.290400][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.290400][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.290400][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.290400][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.290400][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.290400][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.290400][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.290400][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.290400][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.290400][ T10] netlink_unicast+0x449/0x710 [ 3230.290400][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.290400][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.290400][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.290400][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.290400][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.290400][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.290400][ T10] [ 3230.292618][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3230.292618][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.292618][ T10] ipv6_find_idev+0x102/0x170 [ 3230.292618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.292618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.292618][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.292618][ T10] netlink_unicast+0x449/0x710 [ 3230.292618][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.292618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.292618][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.292618][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.292618][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.292618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.292618][ T10] [ 3230.294288][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3230.294288][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.294288][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.294288][ T10] ipv6_find_idev+0x102/0x170 [ 3230.294288][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.294288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.294288][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.294288][ T10] netlink_unicast+0x449/0x710 [ 3230.294288][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.294288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.294288][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.294288][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.294288][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.294288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.294288][ T10] [ 3230.296151][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3230.296442][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3230.296442][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.296442][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.296442][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.296442][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.296442][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.296442][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.296442][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.296442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.296442][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.296442][ T10] netlink_unicast+0x449/0x710 [ 3230.296442][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.296442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.296442][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.296442][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.296442][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.296442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.296442][ T10] [ 3230.298585][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3230.298585][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.298585][ T10] ipv6_find_idev+0x102/0x170 [ 3230.298585][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.298585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.298585][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.298585][ T10] netlink_unicast+0x449/0x710 [ 3230.298585][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.298585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.298585][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.298585][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.298585][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.298585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.298585][ T10] [ 3230.300281][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3230.300281][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.300281][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.300281][ T10] ipv6_find_idev+0x102/0x170 [ 3230.300281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.300281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.300281][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.300281][ T10] netlink_unicast+0x449/0x710 [ 3230.300281][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.300281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.300281][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.300281][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.300281][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.300281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.300281][ T10] [ 3230.302152][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3230.302442][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3230.302442][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.302442][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.302442][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.302442][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.302442][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.302442][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.302442][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.302442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.302442][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.302442][ T10] netlink_unicast+0x449/0x710 [ 3230.302442][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.302442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.302442][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.302442][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.302442][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.302442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.302442][ T10] [ 3230.304646][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3230.304646][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.304646][ T10] ipv6_find_idev+0x102/0x170 [ 3230.304646][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.304646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.304646][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.304646][ T10] netlink_unicast+0x449/0x710 [ 3230.304646][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.304646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.304646][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.304646][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.304646][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.304646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.304646][ T10] [ 3230.306341][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3230.306341][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.306341][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.306341][ T10] ipv6_find_idev+0x102/0x170 [ 3230.306341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.306341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.306341][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.306341][ T10] netlink_unicast+0x449/0x710 [ 3230.306341][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.306341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.306341][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.306341][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.306341][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.306341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.306341][ T10] [ 3230.308540][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3230.309179][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3230.309179][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.309179][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.309179][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.309179][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.309179][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.309179][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.309179][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.309179][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.309179][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.309179][ T10] netlink_unicast+0x449/0x710 [ 3230.309179][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.309179][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.309179][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.309179][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.309179][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.309179][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.309179][ T10] [ 3230.311336][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3230.311336][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.311336][ T10] ipv6_find_idev+0x102/0x170 [ 3230.311336][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.311336][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.311336][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.311336][ T10] netlink_unicast+0x449/0x710 [ 3230.311336][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.311336][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.311336][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.311336][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.311336][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.311336][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.311336][ T10] [ 3230.312990][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3230.312990][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.312990][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.312990][ T10] ipv6_find_idev+0x102/0x170 [ 3230.312990][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.312990][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.312990][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.312990][ T10] netlink_unicast+0x449/0x710 [ 3230.312990][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.312990][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.312990][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.312990][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.312990][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.312990][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.312990][ T10] [ 3230.314789][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3230.315113][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3230.315113][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.315113][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.315113][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.315113][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.315113][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.315113][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.315113][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.315113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.315113][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.315113][ T10] netlink_unicast+0x449/0x710 [ 3230.315113][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.315113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.315113][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.315113][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.315113][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.315113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.315113][ T10] [ 3230.317328][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3230.317328][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.317328][ T10] ipv6_find_idev+0x102/0x170 [ 3230.317328][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.317328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.317328][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.317328][ T10] netlink_unicast+0x449/0x710 [ 3230.317328][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.317328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.317328][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.317328][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.317328][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.317328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.317328][ T10] [ 3230.319080][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3230.319080][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.319080][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.319080][ T10] ipv6_find_idev+0x102/0x170 [ 3230.319080][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.319080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.319080][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.319080][ T10] netlink_unicast+0x449/0x710 [ 3230.319080][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.319080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.319080][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.319080][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.319080][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.319080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.319080][ T10] [ 3230.321157][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3230.321444][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3230.321444][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.321444][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.321444][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.321444][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.321444][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.321444][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.321444][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.321444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.321444][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.321444][ T10] netlink_unicast+0x449/0x710 [ 3230.321444][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.321444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.321444][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.321444][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.321444][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.321444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.321444][ T10] [ 3230.323864][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3230.323864][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.323864][ T10] ipv6_find_idev+0x102/0x170 [ 3230.323864][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.323864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.323864][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.323864][ T10] netlink_unicast+0x449/0x710 [ 3230.323864][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.323864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.323864][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.323864][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.323864][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.323864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.323864][ T10] [ 3230.325809][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3230.325809][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.325809][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.325809][ T10] ipv6_find_idev+0x102/0x170 [ 3230.325809][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.325809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.325809][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.325809][ T10] netlink_unicast+0x449/0x710 [ 3230.325809][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.325809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.325809][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.325809][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.325809][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.325809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.325809][ T10] [ 3230.327908][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3230.328188][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3230.328188][ T10] netdev_get_by_index+0x5e/0x80 [ 3230.328188][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3230.328188][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3230.328188][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3230.328188][ T10] ipv6_add_addr+0x411/0x2000 [ 3230.328188][ T10] inet6_addr_add+0x30e/0xa40 [ 3230.328188][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3230.328188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.328188][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.328188][ T10] netlink_unicast+0x449/0x710 [ 3230.328188][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.328188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.328188][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.328188][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.328188][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.328188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.328188][ T10] [ 3230.330605][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3230.330605][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3230.330605][ T10] ipv6_find_idev+0x102/0x170 [ 3230.330605][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.330605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.330605][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.330605][ T10] netlink_unicast+0x449/0x710 [ 3230.330605][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.330605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.330605][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.330605][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.330605][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.330605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.330605][ T10] [ 3230.332450][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3230.332450][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3230.332450][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3230.332450][ T10] ipv6_find_idev+0x102/0x170 [ 3230.332450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3230.332450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3230.332450][ T10] netlink_rcv_skb+0x130/0x360 [ 3230.332450][ T10] netlink_unicast+0x449/0x710 [ 3230.332450][ T10] netlink_sendmsg+0x723/0xbe0 [ 3230.332450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3230.332450][ T10] ___sys_sendmsg+0xee/0x170 [ 3230.332450][ T10] __sys_sendmsg+0xcd/0x170 [ 3230.332450][ T10] do_syscall_64+0xc6/0x1e0 [ 3230.332450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3230.332450][ T10] [ 3240.571755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3240.572226][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3240.572226][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.572226][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.572226][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.572226][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.572226][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.572226][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.572226][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.572226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.572226][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.572226][ T10] netlink_unicast+0x449/0x710 [ 3240.572226][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.572226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.572226][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.572226][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.572226][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.572226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.572226][ T10] [ 3240.574467][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3240.574467][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.574467][ T10] ipv6_find_idev+0x102/0x170 [ 3240.574467][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.574467][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.574467][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.574467][ T10] netlink_unicast+0x449/0x710 [ 3240.574467][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.574467][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.574467][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.574467][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.574467][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.574467][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.574467][ T10] [ 3240.576199][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3240.576199][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.576199][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.576199][ T10] ipv6_find_idev+0x102/0x170 [ 3240.576199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.576199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.576199][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.576199][ T10] netlink_unicast+0x449/0x710 [ 3240.576199][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.576199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.576199][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.576199][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.576199][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.576199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.576199][ T10] [ 3240.578064][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3240.578380][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3240.578380][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.578380][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.578380][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.578380][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.578380][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.578380][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.578380][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.578380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.578380][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.578380][ T10] netlink_unicast+0x449/0x710 [ 3240.578380][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.578380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.578380][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.578380][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.578380][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.578380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.578380][ T10] [ 3240.580527][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3240.580527][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.580527][ T10] ipv6_find_idev+0x102/0x170 [ 3240.580527][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.580527][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.580527][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.580527][ T10] netlink_unicast+0x449/0x710 [ 3240.580527][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.580527][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.580527][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.580527][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.580527][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.580527][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.580527][ T10] [ 3240.582207][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3240.582207][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.582207][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.582207][ T10] ipv6_find_idev+0x102/0x170 [ 3240.582207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.582207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.582207][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.582207][ T10] netlink_unicast+0x449/0x710 [ 3240.582207][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.582207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.582207][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.582207][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.582207][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.582207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.582207][ T10] [ 3240.584020][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3240.584306][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3240.584306][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.584306][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.584306][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.584306][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.584306][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.584306][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.584306][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.584306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.584306][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.584306][ T10] netlink_unicast+0x449/0x710 [ 3240.584306][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.584306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.584306][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.584306][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.584306][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.584306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.584306][ T10] [ 3240.586483][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3240.586483][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.586483][ T10] ipv6_find_idev+0x102/0x170 [ 3240.586483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.586483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.586483][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.586483][ T10] netlink_unicast+0x449/0x710 [ 3240.586483][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.586483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.586483][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.586483][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.586483][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.586483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.586483][ T10] [ 3240.588193][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3240.588193][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.588193][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.588193][ T10] ipv6_find_idev+0x102/0x170 [ 3240.588193][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.588193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.588193][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.588193][ T10] netlink_unicast+0x449/0x710 [ 3240.588193][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.588193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.588193][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.588193][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.588193][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.588193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.588193][ T10] [ 3240.590036][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3240.590339][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3240.590339][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.590339][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.590339][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.590339][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.590339][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.590339][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.590339][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.590339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.590339][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.590339][ T10] netlink_unicast+0x449/0x710 [ 3240.590339][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.590339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.590339][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.590339][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.590339][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.590339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.590339][ T10] [ 3240.592533][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3240.592533][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.592533][ T10] ipv6_find_idev+0x102/0x170 [ 3240.592533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.592533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.592533][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.592533][ T10] netlink_unicast+0x449/0x710 [ 3240.592533][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.592533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.592533][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.592533][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.592533][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.592533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.592533][ T10] [ 3240.594193][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3240.594193][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.594193][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.594193][ T10] ipv6_find_idev+0x102/0x170 [ 3240.594193][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.594193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.594193][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.594193][ T10] netlink_unicast+0x449/0x710 [ 3240.594193][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.594193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.594193][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.594193][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.594193][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.594193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.594193][ T10] [ 3240.596458][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3240.597074][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3240.597074][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.597074][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.597074][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.597074][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.597074][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.597074][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.597074][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.597074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.597074][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.597074][ T10] netlink_unicast+0x449/0x710 [ 3240.597074][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.597074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.597074][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.597074][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.597074][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.597074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.597074][ T10] [ 3240.599240][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3240.599240][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.599240][ T10] ipv6_find_idev+0x102/0x170 [ 3240.599240][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.599240][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.599240][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.599240][ T10] netlink_unicast+0x449/0x710 [ 3240.599240][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.599240][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.599240][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.599240][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.599240][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.599240][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.599240][ T10] [ 3240.600904][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3240.600904][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.600904][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.600904][ T10] ipv6_find_idev+0x102/0x170 [ 3240.600904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.600904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.600904][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.600904][ T10] netlink_unicast+0x449/0x710 [ 3240.600904][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.600904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.600904][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.600904][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.600904][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.600904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.600904][ T10] [ 3240.602763][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3240.603067][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3240.603067][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.603067][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.603067][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.603067][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.603067][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.603067][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.603067][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.603067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.603067][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.603067][ T10] netlink_unicast+0x449/0x710 [ 3240.603067][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.603067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.603067][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.603067][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.603067][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.603067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.603067][ T10] [ 3240.605263][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3240.605263][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.605263][ T10] ipv6_find_idev+0x102/0x170 [ 3240.605263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.605263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.605263][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.605263][ T10] netlink_unicast+0x449/0x710 [ 3240.605263][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.605263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.605263][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.605263][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.605263][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.605263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.605263][ T10] [ 3240.607052][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3240.607052][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.607052][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.607052][ T10] ipv6_find_idev+0x102/0x170 [ 3240.607052][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.607052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.607052][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.607052][ T10] netlink_unicast+0x449/0x710 [ 3240.607052][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.607052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.607052][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.607052][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.607052][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.607052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.607052][ T10] [ 3240.609115][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3240.609391][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3240.609391][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.609391][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.609391][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.609391][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.609391][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.609391][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.609391][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.609391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.609391][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.609391][ T10] netlink_unicast+0x449/0x710 [ 3240.609391][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.609391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.609391][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.609391][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.609391][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.609391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.609391][ T10] [ 3240.611842][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3240.611842][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.611842][ T10] ipv6_find_idev+0x102/0x170 [ 3240.611842][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.611842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.611842][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.611842][ T10] netlink_unicast+0x449/0x710 [ 3240.611842][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.611842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.611842][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.611842][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.611842][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.611842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.611842][ T10] [ 3240.613663][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3240.613663][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.613663][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.613663][ T10] ipv6_find_idev+0x102/0x170 [ 3240.613663][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.613663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.613663][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.613663][ T10] netlink_unicast+0x449/0x710 [ 3240.613663][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.613663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.613663][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.613663][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.613663][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.613663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.613663][ T10] [ 3240.615795][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3240.616075][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3240.616075][ T10] netdev_get_by_index+0x5e/0x80 [ 3240.616075][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3240.616075][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3240.616075][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3240.616075][ T10] ipv6_add_addr+0x411/0x2000 [ 3240.616075][ T10] inet6_addr_add+0x30e/0xa40 [ 3240.616075][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3240.616075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.616075][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.616075][ T10] netlink_unicast+0x449/0x710 [ 3240.616075][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.616075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.616075][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.616075][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.616075][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.616075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.616075][ T10] [ 3240.618512][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3240.618512][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3240.618512][ T10] ipv6_find_idev+0x102/0x170 [ 3240.618512][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.618512][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.618512][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.618512][ T10] netlink_unicast+0x449/0x710 [ 3240.618512][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.618512][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.618512][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.618512][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.618512][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.618512][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.618512][ T10] [ 3240.620377][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3240.620377][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3240.620377][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3240.620377][ T10] ipv6_find_idev+0x102/0x170 [ 3240.620377][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3240.620377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3240.620377][ T10] netlink_rcv_skb+0x130/0x360 [ 3240.620377][ T10] netlink_unicast+0x449/0x710 [ 3240.620377][ T10] netlink_sendmsg+0x723/0xbe0 [ 3240.620377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3240.620377][ T10] ___sys_sendmsg+0xee/0x170 [ 3240.620377][ T10] __sys_sendmsg+0xcd/0x170 [ 3240.620377][ T10] do_syscall_64+0xc6/0x1e0 [ 3240.620377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3240.620377][ T10] [ 3250.859749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3250.860221][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3250.860221][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.860221][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.860221][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.860221][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.860221][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.860221][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.860221][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.860221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.860221][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.860221][ T10] netlink_unicast+0x449/0x710 [ 3250.860221][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.860221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.860221][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.860221][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.860221][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.860221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.860221][ T10] [ 3250.862449][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3250.862449][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.862449][ T10] ipv6_find_idev+0x102/0x170 [ 3250.862449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.862449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.862449][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.862449][ T10] netlink_unicast+0x449/0x710 [ 3250.862449][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.862449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.862449][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.862449][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.862449][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.862449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.862449][ T10] [ 3250.864141][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3250.864141][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.864141][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.864141][ T10] ipv6_find_idev+0x102/0x170 [ 3250.864141][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.864141][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.864141][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.864141][ T10] netlink_unicast+0x449/0x710 [ 3250.864141][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.864141][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.864141][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.864141][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.864141][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.864141][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.864141][ T10] [ 3250.866024][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3250.866319][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3250.866319][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.866319][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.866319][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.866319][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.866319][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.866319][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.866319][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.866319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.866319][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.866319][ T10] netlink_unicast+0x449/0x710 [ 3250.866319][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.866319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.866319][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.866319][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.866319][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.866319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.866319][ T10] [ 3250.868553][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3250.868553][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.868553][ T10] ipv6_find_idev+0x102/0x170 [ 3250.868553][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.868553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.868553][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.868553][ T10] netlink_unicast+0x449/0x710 [ 3250.868553][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.868553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.868553][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.868553][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.868553][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.868553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.868553][ T10] [ 3250.870261][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3250.870261][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.870261][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.870261][ T10] ipv6_find_idev+0x102/0x170 [ 3250.870261][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.870261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.870261][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.870261][ T10] netlink_unicast+0x449/0x710 [ 3250.870261][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.870261][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.870261][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.870261][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.870261][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.870261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.870261][ T10] [ 3250.872133][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3250.872473][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3250.872473][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.872473][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.872473][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.872473][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.872473][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.872473][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.872473][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.872473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.872473][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.872473][ T10] netlink_unicast+0x449/0x710 [ 3250.872473][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.872473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.872473][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.872473][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.872473][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.872473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.872473][ T10] [ 3250.874678][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3250.874678][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.874678][ T10] ipv6_find_idev+0x102/0x170 [ 3250.874678][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.874678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.874678][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.874678][ T10] netlink_unicast+0x449/0x710 [ 3250.874678][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.874678][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.874678][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.874678][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.874678][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.874678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.874678][ T10] [ 3250.876385][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3250.876385][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.876385][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.876385][ T10] ipv6_find_idev+0x102/0x170 [ 3250.876385][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.876385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.876385][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.876385][ T10] netlink_unicast+0x449/0x710 [ 3250.876385][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.876385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.876385][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.876385][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.876385][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.876385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.876385][ T10] [ 3250.878246][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3250.878526][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3250.878526][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.878526][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.878526][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.878526][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.878526][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.878526][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.878526][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.878526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.878526][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.878526][ T10] netlink_unicast+0x449/0x710 [ 3250.878526][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.878526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.878526][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.878526][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.878526][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.878526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.878526][ T10] [ 3250.880804][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3250.880804][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.880804][ T10] ipv6_find_idev+0x102/0x170 [ 3250.880804][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.880804][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.880804][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.880804][ T10] netlink_unicast+0x449/0x710 [ 3250.880804][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.880804][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.880804][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.880804][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.880804][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.880804][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.880804][ T10] [ 3250.882477][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3250.882477][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.882477][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.882477][ T10] ipv6_find_idev+0x102/0x170 [ 3250.882477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.882477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.882477][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.882477][ T10] netlink_unicast+0x449/0x710 [ 3250.882477][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.882477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.882477][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.882477][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.882477][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.882477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.882477][ T10] [ 3250.884704][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3250.885020][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3250.885020][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.885020][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.885020][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.885020][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.885020][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.885020][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.885020][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.885020][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.885020][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.885020][ T10] netlink_unicast+0x449/0x710 [ 3250.885020][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.885020][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.885020][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.885020][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.885020][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.885020][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.885020][ T10] [ 3250.887177][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3250.887177][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.887177][ T10] ipv6_find_idev+0x102/0x170 [ 3250.887177][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.887177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.887177][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.887177][ T10] netlink_unicast+0x449/0x710 [ 3250.887177][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.887177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.887177][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.887177][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.887177][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.887177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.887177][ T10] [ 3250.888867][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3250.888867][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.888867][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.888867][ T10] ipv6_find_idev+0x102/0x170 [ 3250.888867][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.888867][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.888867][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.888867][ T10] netlink_unicast+0x449/0x710 [ 3250.888867][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.888867][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.888867][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.888867][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.888867][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.888867][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.888867][ T10] [ 3250.890753][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3250.891051][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3250.891051][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.891051][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.891051][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.891051][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.891051][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.891051][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.891051][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.891051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.891051][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.891051][ T10] netlink_unicast+0x449/0x710 [ 3250.891051][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.891051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.891051][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.891051][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.891051][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.891051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.891051][ T10] [ 3250.893357][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3250.893357][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.893357][ T10] ipv6_find_idev+0x102/0x170 [ 3250.893357][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.893357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.893357][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.893357][ T10] netlink_unicast+0x449/0x710 [ 3250.893357][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.893357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.893357][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.893357][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.893357][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.893357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.893357][ T10] [ 3250.895211][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3250.895211][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.895211][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.895211][ T10] ipv6_find_idev+0x102/0x170 [ 3250.895211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.895211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.895211][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.895211][ T10] netlink_unicast+0x449/0x710 [ 3250.895211][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.895211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.895211][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.895211][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.895211][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.895211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.895211][ T10] [ 3250.897304][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3250.897595][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3250.897595][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.897595][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.897595][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.897595][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.897595][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.897595][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.897595][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.897595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.897595][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.897595][ T10] netlink_unicast+0x449/0x710 [ 3250.897595][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.897595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.897595][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.897595][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.897595][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.897595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.897595][ T10] [ 3250.900144][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3250.900144][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.900144][ T10] ipv6_find_idev+0x102/0x170 [ 3250.900144][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.900144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.900144][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.900144][ T10] netlink_unicast+0x449/0x710 [ 3250.900144][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.900144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.900144][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.900144][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.900144][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.900144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.900144][ T10] [ 3250.902020][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3250.902020][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.902020][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.902020][ T10] ipv6_find_idev+0x102/0x170 [ 3250.902020][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.902020][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.902020][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.902020][ T10] netlink_unicast+0x449/0x710 [ 3250.902020][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.902020][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.902020][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.902020][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.902020][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.902020][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.902020][ T10] [ 3250.904193][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3250.904483][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3250.904483][ T10] netdev_get_by_index+0x5e/0x80 [ 3250.904483][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3250.904483][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3250.904483][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3250.904483][ T10] ipv6_add_addr+0x411/0x2000 [ 3250.904483][ T10] inet6_addr_add+0x30e/0xa40 [ 3250.904483][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3250.904483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.904483][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.904483][ T10] netlink_unicast+0x449/0x710 [ 3250.904483][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.904483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.904483][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.904483][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.904483][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.904483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.904483][ T10] [ 3250.906947][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3250.906947][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3250.906947][ T10] ipv6_find_idev+0x102/0x170 [ 3250.906947][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.906947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.906947][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.906947][ T10] netlink_unicast+0x449/0x710 [ 3250.906947][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.906947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.906947][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.906947][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.906947][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.906947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.906947][ T10] [ 3250.908847][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3250.908847][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3250.908847][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3250.908847][ T10] ipv6_find_idev+0x102/0x170 [ 3250.908847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3250.908847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3250.908847][ T10] netlink_rcv_skb+0x130/0x360 [ 3250.908847][ T10] netlink_unicast+0x449/0x710 [ 3250.908847][ T10] netlink_sendmsg+0x723/0xbe0 [ 3250.908847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3250.908847][ T10] ___sys_sendmsg+0xee/0x170 [ 3250.908847][ T10] __sys_sendmsg+0xcd/0x170 [ 3250.908847][ T10] do_syscall_64+0xc6/0x1e0 [ 3250.908847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3250.908847][ T10] [ 3261.147751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3261.148190][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3261.148190][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.148190][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.148190][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.148190][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.148190][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.148190][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.148190][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.148190][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.148190][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.148190][ T10] netlink_unicast+0x449/0x710 [ 3261.148190][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.148190][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.148190][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.148190][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.148190][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.148190][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.148190][ T10] [ 3261.150479][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3261.150479][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.150479][ T10] ipv6_find_idev+0x102/0x170 [ 3261.150479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.150479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.150479][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.150479][ T10] netlink_unicast+0x449/0x710 [ 3261.150479][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.150479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.150479][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.150479][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.150479][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.150479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.150479][ T10] [ 3261.152182][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3261.152182][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.152182][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.152182][ T10] ipv6_find_idev+0x102/0x170 [ 3261.152182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.152182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.152182][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.152182][ T10] netlink_unicast+0x449/0x710 [ 3261.152182][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.152182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.152182][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.152182][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.152182][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.152182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.152182][ T10] [ 3261.154059][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3261.154374][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3261.154374][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.154374][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.154374][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.154374][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.154374][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.154374][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.154374][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.154374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.154374][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.154374][ T10] netlink_unicast+0x449/0x710 [ 3261.154374][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.154374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.154374][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.154374][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.154374][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.154374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.154374][ T10] [ 3261.156677][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3261.156677][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.156677][ T10] ipv6_find_idev+0x102/0x170 [ 3261.156677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.156677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.156677][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.156677][ T10] netlink_unicast+0x449/0x710 [ 3261.156677][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.156677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.156677][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.156677][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.156677][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.156677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.156677][ T10] [ 3261.158380][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3261.158380][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.158380][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.158380][ T10] ipv6_find_idev+0x102/0x170 [ 3261.158380][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.158380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.158380][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.158380][ T10] netlink_unicast+0x449/0x710 [ 3261.158380][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.158380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.158380][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.158380][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.158380][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.158380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.158380][ T10] [ 3261.160231][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3261.160536][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3261.160536][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.160536][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.160536][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.160536][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.160536][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.160536][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.160536][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.160536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.160536][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.160536][ T10] netlink_unicast+0x449/0x710 [ 3261.160536][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.160536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.160536][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.160536][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.160536][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.160536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.160536][ T10] [ 3261.162782][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3261.162782][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.162782][ T10] ipv6_find_idev+0x102/0x170 [ 3261.162782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.162782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.162782][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.162782][ T10] netlink_unicast+0x449/0x710 [ 3261.162782][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.162782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.162782][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.162782][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.162782][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.162782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.162782][ T10] [ 3261.164484][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3261.164484][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.164484][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.164484][ T10] ipv6_find_idev+0x102/0x170 [ 3261.164484][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.164484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.164484][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.164484][ T10] netlink_unicast+0x449/0x710 [ 3261.164484][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.164484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.164484][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.164484][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.164484][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.164484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.164484][ T10] [ 3261.166439][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3261.167163][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3261.167163][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.167163][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.167163][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.167163][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.167163][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.167163][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.167163][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.167163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.167163][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.167163][ T10] netlink_unicast+0x449/0x710 [ 3261.167163][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.167163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.167163][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.167163][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.167163][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.167163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.167163][ T10] [ 3261.169406][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3261.169406][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.169406][ T10] ipv6_find_idev+0x102/0x170 [ 3261.169406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.169406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.169406][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.169406][ T10] netlink_unicast+0x449/0x710 [ 3261.169406][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.169406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.169406][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.169406][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.169406][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.169406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.169406][ T10] [ 3261.171067][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3261.171067][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.171067][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.171067][ T10] ipv6_find_idev+0x102/0x170 [ 3261.171067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.171067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.171067][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.171067][ T10] netlink_unicast+0x449/0x710 [ 3261.171067][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.171067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.171067][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.171067][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.171067][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.171067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.171067][ T10] [ 3261.172972][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3261.173309][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3261.173309][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.173309][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.173309][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.173309][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.173309][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.173309][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.173309][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.173309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.173309][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.173309][ T10] netlink_unicast+0x449/0x710 [ 3261.173309][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.173309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.173309][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.173309][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.173309][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.173309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.173309][ T10] [ 3261.175584][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3261.175584][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.175584][ T10] ipv6_find_idev+0x102/0x170 [ 3261.175584][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.175584][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.175584][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.175584][ T10] netlink_unicast+0x449/0x710 [ 3261.175584][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.175584][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.175584][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.175584][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.175584][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.175584][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.175584][ T10] [ 3261.177312][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3261.177312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.177312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.177312][ T10] ipv6_find_idev+0x102/0x170 [ 3261.177312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.177312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.177312][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.177312][ T10] netlink_unicast+0x449/0x710 [ 3261.177312][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.177312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.177312][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.177312][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.177312][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.177312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.177312][ T10] [ 3261.179294][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3261.179640][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3261.179640][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.179640][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.179640][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.179640][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.179640][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.179640][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.179640][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.179640][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.179640][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.179640][ T10] netlink_unicast+0x449/0x710 [ 3261.179640][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.179640][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.179640][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.179640][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.179640][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.179640][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.179640][ T10] [ 3261.181815][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3261.181815][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.181815][ T10] ipv6_find_idev+0x102/0x170 [ 3261.181815][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.181815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.181815][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.181815][ T10] netlink_unicast+0x449/0x710 [ 3261.181815][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.181815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.181815][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.181815][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.181815][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.181815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.181815][ T10] [ 3261.183577][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3261.183577][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.183577][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.183577][ T10] ipv6_find_idev+0x102/0x170 [ 3261.183577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.183577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.183577][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.183577][ T10] netlink_unicast+0x449/0x710 [ 3261.183577][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.183577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.183577][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.183577][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.183577][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.183577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.183577][ T10] [ 3261.185755][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3261.186109][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3261.186109][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.186109][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.186109][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.186109][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.186109][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.186109][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.186109][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.186109][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.186109][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.186109][ T10] netlink_unicast+0x449/0x710 [ 3261.186109][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.186109][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.186109][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.186109][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.186109][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.186109][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.186109][ T10] [ 3261.188506][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3261.188506][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.188506][ T10] ipv6_find_idev+0x102/0x170 [ 3261.188506][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.188506][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.188506][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.188506][ T10] netlink_unicast+0x449/0x710 [ 3261.188506][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.188506][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.188506][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.188506][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.188506][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.188506][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.188506][ T10] [ 3261.190319][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3261.190319][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.190319][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.190319][ T10] ipv6_find_idev+0x102/0x170 [ 3261.190319][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.190319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.190319][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.190319][ T10] netlink_unicast+0x449/0x710 [ 3261.190319][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.190319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.190319][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.190319][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.190319][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.190319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.190319][ T10] [ 3261.192497][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3261.192873][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3261.192873][ T10] netdev_get_by_index+0x5e/0x80 [ 3261.192873][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3261.192873][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3261.192873][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3261.192873][ T10] ipv6_add_addr+0x411/0x2000 [ 3261.192873][ T10] inet6_addr_add+0x30e/0xa40 [ 3261.192873][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.192873][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.192873][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.192873][ T10] netlink_unicast+0x449/0x710 [ 3261.192873][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.192873][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.192873][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.192873][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.192873][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.192873][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.192873][ T10] [ 3261.195313][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3261.195313][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3261.195313][ T10] ipv6_find_idev+0x102/0x170 [ 3261.195313][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.195313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.195313][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.195313][ T10] netlink_unicast+0x449/0x710 [ 3261.195313][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.195313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.195313][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.195313][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.195313][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.195313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.195313][ T10] [ 3261.197344][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3261.197344][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3261.197344][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3261.197344][ T10] ipv6_find_idev+0x102/0x170 [ 3261.197344][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.197344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.197344][ T10] netlink_rcv_skb+0x130/0x360 [ 3261.197344][ T10] netlink_unicast+0x449/0x710 [ 3261.197344][ T10] netlink_sendmsg+0x723/0xbe0 [ 3261.197344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3261.197344][ T10] ___sys_sendmsg+0xee/0x170 [ 3261.197344][ T10] __sys_sendmsg+0xcd/0x170 [ 3261.197344][ T10] do_syscall_64+0xc6/0x1e0 [ 3261.197344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.197344][ T10] [ 3271.435765][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3271.436214][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3271.436214][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.436214][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.436214][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.436214][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.436214][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.436214][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.436214][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.436214][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.436214][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.436214][ T10] netlink_unicast+0x449/0x710 [ 3271.436214][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.436214][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.436214][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.436214][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.436214][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.436214][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.436214][ T10] [ 3271.438510][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3271.438510][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.438510][ T10] ipv6_find_idev+0x102/0x170 [ 3271.438510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.438510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.438510][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.438510][ T10] netlink_unicast+0x449/0x710 [ 3271.438510][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.438510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.438510][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.438510][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.438510][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.438510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.438510][ T10] [ 3271.440191][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3271.440191][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.440191][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.440191][ T10] ipv6_find_idev+0x102/0x170 [ 3271.440191][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.440191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.440191][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.440191][ T10] netlink_unicast+0x449/0x710 [ 3271.440191][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.440191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.440191][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.440191][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.440191][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.440191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.440191][ T10] [ 3271.442061][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3271.442353][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3271.442353][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.442353][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.442353][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.442353][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.442353][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.442353][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.442353][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.442353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.442353][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.442353][ T10] netlink_unicast+0x449/0x710 [ 3271.442353][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.442353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.442353][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.442353][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.442353][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.442353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.442353][ T10] [ 3271.444575][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3271.444575][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.444575][ T10] ipv6_find_idev+0x102/0x170 [ 3271.444575][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.444575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.444575][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.444575][ T10] netlink_unicast+0x449/0x710 [ 3271.444575][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.444575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.444575][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.444575][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.444575][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.444575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.444575][ T10] [ 3271.446298][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3271.446298][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.446298][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.446298][ T10] ipv6_find_idev+0x102/0x170 [ 3271.446298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.446298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.446298][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.446298][ T10] netlink_unicast+0x449/0x710 [ 3271.446298][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.446298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.446298][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.446298][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.446298][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.446298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.446298][ T10] [ 3271.448233][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3271.448533][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3271.448533][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.448533][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.448533][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.448533][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.448533][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.448533][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.448533][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.448533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.448533][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.448533][ T10] netlink_unicast+0x449/0x710 [ 3271.448533][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.448533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.448533][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.448533][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.448533][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.448533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.448533][ T10] [ 3271.450786][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3271.450786][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.450786][ T10] ipv6_find_idev+0x102/0x170 [ 3271.450786][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.450786][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.450786][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.450786][ T10] netlink_unicast+0x449/0x710 [ 3271.450786][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.450786][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.450786][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.450786][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.450786][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.450786][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.450786][ T10] [ 3271.452475][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3271.452475][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.452475][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.452475][ T10] ipv6_find_idev+0x102/0x170 [ 3271.452475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.452475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.452475][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.452475][ T10] netlink_unicast+0x449/0x710 [ 3271.452475][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.452475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.452475][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.452475][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.452475][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.452475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.452475][ T10] [ 3271.454293][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3271.454596][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3271.454596][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.454596][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.454596][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.454596][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.454596][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.454596][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.454596][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.454596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.454596][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.454596][ T10] netlink_unicast+0x449/0x710 [ 3271.454596][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.454596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.454596][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.454596][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.454596][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.454596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.454596][ T10] [ 3271.456900][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3271.456900][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.456900][ T10] ipv6_find_idev+0x102/0x170 [ 3271.456900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.456900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.456900][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.456900][ T10] netlink_unicast+0x449/0x710 [ 3271.456900][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.456900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.456900][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.456900][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.456900][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.456900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.456900][ T10] [ 3271.458607][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3271.458607][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.458607][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.458607][ T10] ipv6_find_idev+0x102/0x170 [ 3271.458607][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.458607][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.458607][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.458607][ T10] netlink_unicast+0x449/0x710 [ 3271.458607][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.458607][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.458607][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.458607][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.458607][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.458607][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.458607][ T10] [ 3271.460987][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3271.461610][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3271.461610][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.461610][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.461610][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.461610][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.461610][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.461610][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.461610][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.461610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.461610][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.461610][ T10] netlink_unicast+0x449/0x710 [ 3271.461610][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.461610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.461610][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.461610][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.461610][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.461610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.461610][ T10] [ 3271.463851][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3271.463851][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.463851][ T10] ipv6_find_idev+0x102/0x170 [ 3271.463851][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.463851][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.463851][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.463851][ T10] netlink_unicast+0x449/0x710 [ 3271.463851][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.463851][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.463851][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.463851][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.463851][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.463851][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.463851][ T10] [ 3271.465615][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3271.465615][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.465615][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.465615][ T10] ipv6_find_idev+0x102/0x170 [ 3271.465615][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.465615][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.465615][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.465615][ T10] netlink_unicast+0x449/0x710 [ 3271.465615][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.465615][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.465615][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.465615][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.465615][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.465615][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.465615][ T10] [ 3271.467548][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3271.467911][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3271.467911][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.467911][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.467911][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.467911][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.467911][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.467911][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.467911][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.467911][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.467911][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.467911][ T10] netlink_unicast+0x449/0x710 [ 3271.467911][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.467911][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.467911][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.467911][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.467911][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.467911][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.467911][ T10] [ 3271.470171][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3271.470171][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.470171][ T10] ipv6_find_idev+0x102/0x170 [ 3271.470171][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.470171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.470171][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.470171][ T10] netlink_unicast+0x449/0x710 [ 3271.470171][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.470171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.470171][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.470171][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.470171][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.470171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.470171][ T10] [ 3271.471899][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3271.471899][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.471899][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.471899][ T10] ipv6_find_idev+0x102/0x170 [ 3271.471899][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.471899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.471899][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.471899][ T10] netlink_unicast+0x449/0x710 [ 3271.471899][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.471899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.471899][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.471899][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.471899][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.471899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.471899][ T10] [ 3271.474116][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3271.474449][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3271.474449][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.474449][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.474449][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.474449][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.474449][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.474449][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.474449][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.474449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.474449][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.474449][ T10] netlink_unicast+0x449/0x710 [ 3271.474449][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.474449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.474449][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.474449][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.474449][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.474449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.474449][ T10] [ 3271.477000][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3271.477000][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.477000][ T10] ipv6_find_idev+0x102/0x170 [ 3271.477000][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.477000][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.477000][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.477000][ T10] netlink_unicast+0x449/0x710 [ 3271.477000][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.477000][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.477000][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.477000][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.477000][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.477000][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.477000][ T10] [ 3271.478888][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3271.478888][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.478888][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.478888][ T10] ipv6_find_idev+0x102/0x170 [ 3271.478888][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.478888][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.478888][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.478888][ T10] netlink_unicast+0x449/0x710 [ 3271.478888][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.478888][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.478888][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.478888][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.478888][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.478888][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.478888][ T10] [ 3271.480980][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3271.481310][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3271.481310][ T10] netdev_get_by_index+0x5e/0x80 [ 3271.481310][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3271.481310][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3271.481310][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3271.481310][ T10] ipv6_add_addr+0x411/0x2000 [ 3271.481310][ T10] inet6_addr_add+0x30e/0xa40 [ 3271.481310][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3271.481310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.481310][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.481310][ T10] netlink_unicast+0x449/0x710 [ 3271.481310][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.481310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.481310][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.481310][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.481310][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.481310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.481310][ T10] [ 3271.483672][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3271.483672][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3271.483672][ T10] ipv6_find_idev+0x102/0x170 [ 3271.483672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.483672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.483672][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.483672][ T10] netlink_unicast+0x449/0x710 [ 3271.483672][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.483672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.483672][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.483672][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.483672][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.483672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.483672][ T10] [ 3271.485573][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3271.485573][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3271.485573][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3271.485573][ T10] ipv6_find_idev+0x102/0x170 [ 3271.485573][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3271.485573][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3271.485573][ T10] netlink_rcv_skb+0x130/0x360 [ 3271.485573][ T10] netlink_unicast+0x449/0x710 [ 3271.485573][ T10] netlink_sendmsg+0x723/0xbe0 [ 3271.485573][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3271.485573][ T10] ___sys_sendmsg+0xee/0x170 [ 3271.485573][ T10] __sys_sendmsg+0xcd/0x170 [ 3271.485573][ T10] do_syscall_64+0xc6/0x1e0 [ 3271.485573][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3271.485573][ T10] [ 3281.499769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3281.500214][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3281.500214][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.500214][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.500214][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.500214][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.500214][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.500214][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.500214][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.500214][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.500214][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.500214][ T10] netlink_unicast+0x449/0x710 [ 3281.500214][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.500214][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.500214][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.500214][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.500214][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.500214][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.500214][ T10] [ 3281.502277][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3281.502277][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.502277][ T10] ipv6_find_idev+0x102/0x170 [ 3281.502277][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.502277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.502277][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.502277][ T10] netlink_unicast+0x449/0x710 [ 3281.502277][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.502277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.502277][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.502277][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.502277][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.502277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.502277][ T10] [ 3281.503823][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3281.503823][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.503823][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.503823][ T10] ipv6_find_idev+0x102/0x170 [ 3281.503823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.503823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.503823][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.503823][ T10] netlink_unicast+0x449/0x710 [ 3281.503823][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.503823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.503823][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.503823][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.503823][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.503823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.503823][ T10] [ 3281.505547][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3281.505849][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3281.505849][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.505849][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.505849][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.505849][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.505849][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.505849][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.505849][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.505849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.505849][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.505849][ T10] netlink_unicast+0x449/0x710 [ 3281.505849][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.505849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.505849][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.505849][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.505849][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.505849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.505849][ T10] [ 3281.507871][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3281.507871][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.507871][ T10] ipv6_find_idev+0x102/0x170 [ 3281.507871][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.507871][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.507871][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.507871][ T10] netlink_unicast+0x449/0x710 [ 3281.507871][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.507871][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.507871][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.507871][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.507871][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.507871][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.507871][ T10] [ 3281.509431][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3281.509431][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.509431][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.509431][ T10] ipv6_find_idev+0x102/0x170 [ 3281.509431][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.509431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.509431][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.509431][ T10] netlink_unicast+0x449/0x710 [ 3281.509431][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.509431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.509431][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.509431][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.509431][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.509431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.509431][ T10] [ 3281.511142][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3281.511413][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3281.511413][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.511413][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.511413][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.511413][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.511413][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.511413][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.511413][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.511413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.511413][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.511413][ T10] netlink_unicast+0x449/0x710 [ 3281.511413][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.511413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.511413][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.511413][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.511413][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.511413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.511413][ T10] [ 3281.513438][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3281.513438][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.513438][ T10] ipv6_find_idev+0x102/0x170 [ 3281.513438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.513438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.513438][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.513438][ T10] netlink_unicast+0x449/0x710 [ 3281.513438][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.513438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.513438][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.513438][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.513438][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.513438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.513438][ T10] [ 3281.515006][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3281.515006][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.515006][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.515006][ T10] ipv6_find_idev+0x102/0x170 [ 3281.515006][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.515006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.515006][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.515006][ T10] netlink_unicast+0x449/0x710 [ 3281.515006][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.515006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.515006][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.515006][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.515006][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.515006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.515006][ T10] [ 3281.516704][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3281.516986][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3281.516986][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.516986][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.516986][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.516986][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.516986][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.516986][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.516986][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.516986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.516986][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.516986][ T10] netlink_unicast+0x449/0x710 [ 3281.516986][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.516986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.516986][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.516986][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.516986][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.516986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.516986][ T10] [ 3281.518992][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3281.518992][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.518992][ T10] ipv6_find_idev+0x102/0x170 [ 3281.518992][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.518992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.518992][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.518992][ T10] netlink_unicast+0x449/0x710 [ 3281.518992][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.518992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.518992][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.518992][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.518992][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.518992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.518992][ T10] [ 3281.520544][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3281.520544][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.520544][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.520544][ T10] ipv6_find_idev+0x102/0x170 [ 3281.520544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.520544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.520544][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.520544][ T10] netlink_unicast+0x449/0x710 [ 3281.520544][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.520544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.520544][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.520544][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.520544][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.520544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.520544][ T10] [ 3281.522634][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3281.523322][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3281.523322][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.523322][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.523322][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.523322][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.523322][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.523322][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.523322][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.523322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.523322][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.523322][ T10] netlink_unicast+0x449/0x710 [ 3281.523322][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.523322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.523322][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.523322][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.523322][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.523322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.523322][ T10] [ 3281.525329][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3281.525329][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.525329][ T10] ipv6_find_idev+0x102/0x170 [ 3281.525329][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.525329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.525329][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.525329][ T10] netlink_unicast+0x449/0x710 [ 3281.525329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.525329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.525329][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.525329][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.525329][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.525329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.525329][ T10] [ 3281.526882][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3281.526882][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.526882][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.526882][ T10] ipv6_find_idev+0x102/0x170 [ 3281.526882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.526882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.526882][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.526882][ T10] netlink_unicast+0x449/0x710 [ 3281.526882][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.526882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.526882][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.526882][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.526882][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.526882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.526882][ T10] [ 3281.528563][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3281.528889][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3281.528889][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.528889][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.528889][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.528889][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.528889][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.528889][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.528889][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.528889][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.528889][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.528889][ T10] netlink_unicast+0x449/0x710 [ 3281.528889][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.528889][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.528889][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.528889][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.528889][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.528889][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.528889][ T10] [ 3281.530904][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3281.530904][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.530904][ T10] ipv6_find_idev+0x102/0x170 [ 3281.530904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.530904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.530904][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.530904][ T10] netlink_unicast+0x449/0x710 [ 3281.530904][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.530904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.530904][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.530904][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.530904][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.530904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.530904][ T10] [ 3281.532479][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3281.532479][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.532479][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.532479][ T10] ipv6_find_idev+0x102/0x170 [ 3281.532479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.532479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.532479][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.532479][ T10] netlink_unicast+0x449/0x710 [ 3281.532479][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.532479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.532479][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.532479][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.532479][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.532479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.532479][ T10] [ 3281.534465][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3281.534798][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3281.534798][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.534798][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.534798][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.534798][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.534798][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.534798][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.534798][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.534798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.534798][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.534798][ T10] netlink_unicast+0x449/0x710 [ 3281.534798][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.534798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.534798][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.534798][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.534798][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.534798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.534798][ T10] [ 3281.536991][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3281.536991][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.536991][ T10] ipv6_find_idev+0x102/0x170 [ 3281.536991][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.536991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.536991][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.536991][ T10] netlink_unicast+0x449/0x710 [ 3281.536991][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.536991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.536991][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.536991][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.536991][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.536991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.536991][ T10] [ 3281.538748][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3281.538748][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.538748][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.538748][ T10] ipv6_find_idev+0x102/0x170 [ 3281.538748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.538748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.538748][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.538748][ T10] netlink_unicast+0x449/0x710 [ 3281.538748][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.538748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.538748][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.538748][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.538748][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.538748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.538748][ T10] [ 3281.540694][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3281.540960][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3281.540960][ T10] netdev_get_by_index+0x5e/0x80 [ 3281.540960][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3281.540960][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3281.540960][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3281.540960][ T10] ipv6_add_addr+0x411/0x2000 [ 3281.540960][ T10] inet6_addr_add+0x30e/0xa40 [ 3281.540960][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3281.540960][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.540960][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.540960][ T10] netlink_unicast+0x449/0x710 [ 3281.540960][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.540960][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.540960][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.540960][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.540960][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.540960][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.540960][ T10] [ 3281.543126][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3281.543126][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3281.543126][ T10] ipv6_find_idev+0x102/0x170 [ 3281.543126][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.543126][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.543126][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.543126][ T10] netlink_unicast+0x449/0x710 [ 3281.543126][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.543126][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.543126][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.543126][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.543126][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.543126][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.543126][ T10] [ 3281.544844][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3281.544844][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3281.544844][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3281.544844][ T10] ipv6_find_idev+0x102/0x170 [ 3281.544844][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3281.544844][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3281.544844][ T10] netlink_rcv_skb+0x130/0x360 [ 3281.544844][ T10] netlink_unicast+0x449/0x710 [ 3281.544844][ T10] netlink_sendmsg+0x723/0xbe0 [ 3281.544844][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3281.544844][ T10] ___sys_sendmsg+0xee/0x170 [ 3281.544844][ T10] __sys_sendmsg+0xcd/0x170 [ 3281.544844][ T10] do_syscall_64+0xc6/0x1e0 [ 3281.544844][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3281.544844][ T10] [ 3291.787755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3291.788217][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3291.788217][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.788217][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.788217][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.788217][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.788217][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.788217][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.788217][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.788217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.788217][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.788217][ T10] netlink_unicast+0x449/0x710 [ 3291.788217][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.788217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.788217][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.788217][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.788217][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.788217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.788217][ T10] [ 3291.790257][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3291.790257][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.790257][ T10] ipv6_find_idev+0x102/0x170 [ 3291.790257][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.790257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.790257][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.790257][ T10] netlink_unicast+0x449/0x710 [ 3291.790257][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.790257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.790257][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.790257][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.790257][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.790257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.790257][ T10] [ 3291.791827][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3291.791827][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.791827][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.791827][ T10] ipv6_find_idev+0x102/0x170 [ 3291.791827][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.791827][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.791827][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.791827][ T10] netlink_unicast+0x449/0x710 [ 3291.791827][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.791827][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.791827][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.791827][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.791827][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.791827][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.791827][ T10] [ 3291.793549][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3291.793842][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3291.793842][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.793842][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.793842][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.793842][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.793842][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.793842][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.793842][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.793842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.793842][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.793842][ T10] netlink_unicast+0x449/0x710 [ 3291.793842][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.793842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.793842][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.793842][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.793842][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.793842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.793842][ T10] [ 3291.795875][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3291.795875][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.795875][ T10] ipv6_find_idev+0x102/0x170 [ 3291.795875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.795875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.795875][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.795875][ T10] netlink_unicast+0x449/0x710 [ 3291.795875][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.795875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.795875][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.795875][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.795875][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.795875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.795875][ T10] [ 3291.797419][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3291.797419][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.797419][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.797419][ T10] ipv6_find_idev+0x102/0x170 [ 3291.797419][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.797419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.797419][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.797419][ T10] netlink_unicast+0x449/0x710 [ 3291.797419][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.797419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.797419][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.797419][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.797419][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.797419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.797419][ T10] [ 3291.799123][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3291.799414][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3291.799414][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.799414][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.799414][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.799414][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.799414][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.799414][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.799414][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.799414][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.799414][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.799414][ T10] netlink_unicast+0x449/0x710 [ 3291.799414][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.799414][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.799414][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.799414][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.799414][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.799414][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.799414][ T10] [ 3291.801424][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3291.801424][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.801424][ T10] ipv6_find_idev+0x102/0x170 [ 3291.801424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.801424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.801424][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.801424][ T10] netlink_unicast+0x449/0x710 [ 3291.801424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.801424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.801424][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.801424][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.801424][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.801424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.801424][ T10] [ 3291.802971][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3291.802971][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.802971][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.802971][ T10] ipv6_find_idev+0x102/0x170 [ 3291.802971][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.802971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.802971][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.802971][ T10] netlink_unicast+0x449/0x710 [ 3291.802971][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.802971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.802971][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.802971][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.802971][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.802971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.802971][ T10] [ 3291.805076][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3291.805350][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3291.805350][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.805350][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.805350][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.805350][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.805350][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.805350][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.805350][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.805350][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.805350][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.805350][ T10] netlink_unicast+0x449/0x710 [ 3291.805350][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.805350][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.805350][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.805350][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.805350][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.805350][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.805350][ T10] [ 3291.807351][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3291.807351][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.807351][ T10] ipv6_find_idev+0x102/0x170 [ 3291.807351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.807351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.807351][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.807351][ T10] netlink_unicast+0x449/0x710 [ 3291.807351][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.807351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.807351][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.807351][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.807351][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.807351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.807351][ T10] [ 3291.808897][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3291.808897][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.808897][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.808897][ T10] ipv6_find_idev+0x102/0x170 [ 3291.808897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.808897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.808897][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.808897][ T10] netlink_unicast+0x449/0x710 [ 3291.808897][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.808897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.808897][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.808897][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.808897][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.808897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.808897][ T10] [ 3291.810628][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3291.810957][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3291.810957][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.810957][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.810957][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.810957][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.810957][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.810957][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.810957][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.810957][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.810957][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.810957][ T10] netlink_unicast+0x449/0x710 [ 3291.810957][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.810957][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.810957][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.810957][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.810957][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.810957][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.810957][ T10] [ 3291.812976][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3291.812976][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.812976][ T10] ipv6_find_idev+0x102/0x170 [ 3291.812976][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.812976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.812976][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.812976][ T10] netlink_unicast+0x449/0x710 [ 3291.812976][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.812976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.812976][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.812976][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.812976][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.812976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.812976][ T10] [ 3291.814522][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3291.814522][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.814522][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.814522][ T10] ipv6_find_idev+0x102/0x170 [ 3291.814522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.814522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.814522][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.814522][ T10] netlink_unicast+0x449/0x710 [ 3291.814522][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.814522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.814522][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.814522][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.814522][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.814522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.814522][ T10] [ 3291.816326][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3291.816592][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3291.816592][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.816592][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.816592][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.816592][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.816592][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.816592][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.816592][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.816592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.816592][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.816592][ T10] netlink_unicast+0x449/0x710 [ 3291.816592][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.816592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.816592][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.816592][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.816592][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.816592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.816592][ T10] [ 3291.818651][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3291.818651][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.818651][ T10] ipv6_find_idev+0x102/0x170 [ 3291.818651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.818651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.818651][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.818651][ T10] netlink_unicast+0x449/0x710 [ 3291.818651][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.818651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.818651][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.818651][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.818651][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.818651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.818651][ T10] [ 3291.820395][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3291.820395][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.820395][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.820395][ T10] ipv6_find_idev+0x102/0x170 [ 3291.820395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.820395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.820395][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.820395][ T10] netlink_unicast+0x449/0x710 [ 3291.820395][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.820395][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.820395][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.820395][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.820395][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.820395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.820395][ T10] [ 3291.822440][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3291.822761][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3291.822761][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.822761][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.822761][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.822761][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.822761][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.822761][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.822761][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.822761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.822761][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.822761][ T10] netlink_unicast+0x449/0x710 [ 3291.822761][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.822761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.822761][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.822761][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.822761][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.822761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.822761][ T10] [ 3291.824966][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3291.824966][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.824966][ T10] ipv6_find_idev+0x102/0x170 [ 3291.824966][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.824966][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.824966][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.824966][ T10] netlink_unicast+0x449/0x710 [ 3291.824966][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.824966][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.824966][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.824966][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.824966][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.824966][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.824966][ T10] [ 3291.826685][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3291.826685][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.826685][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.826685][ T10] ipv6_find_idev+0x102/0x170 [ 3291.826685][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.826685][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.826685][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.826685][ T10] netlink_unicast+0x449/0x710 [ 3291.826685][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.826685][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.826685][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.826685][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.826685][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.826685][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.826685][ T10] [ 3291.828600][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3291.828930][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3291.828930][ T10] netdev_get_by_index+0x5e/0x80 [ 3291.828930][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3291.828930][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3291.828930][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3291.828930][ T10] ipv6_add_addr+0x411/0x2000 [ 3291.828930][ T10] inet6_addr_add+0x30e/0xa40 [ 3291.828930][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3291.828930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.828930][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.828930][ T10] netlink_unicast+0x449/0x710 [ 3291.828930][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.828930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.828930][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.828930][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.828930][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.828930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.828930][ T10] [ 3291.831115][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3291.831115][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3291.831115][ T10] ipv6_find_idev+0x102/0x170 [ 3291.831115][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.831115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.831115][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.831115][ T10] netlink_unicast+0x449/0x710 [ 3291.831115][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.831115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.831115][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.831115][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.831115][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.831115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.831115][ T10] [ 3291.832918][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3291.832918][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3291.832918][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3291.832918][ T10] ipv6_find_idev+0x102/0x170 [ 3291.832918][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3291.832918][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3291.832918][ T10] netlink_rcv_skb+0x130/0x360 [ 3291.832918][ T10] netlink_unicast+0x449/0x710 [ 3291.832918][ T10] netlink_sendmsg+0x723/0xbe0 [ 3291.832918][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3291.832918][ T10] ___sys_sendmsg+0xee/0x170 [ 3291.832918][ T10] __sys_sendmsg+0xcd/0x170 [ 3291.832918][ T10] do_syscall_64+0xc6/0x1e0 [ 3291.832918][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3291.832918][ T10] [ 3302.075764][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3302.076200][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3302.076200][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.076200][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.076200][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.076200][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.076200][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.076200][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.076200][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.076200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.076200][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.076200][ T10] netlink_unicast+0x449/0x710 [ 3302.076200][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.076200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.076200][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.076200][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.076200][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.076200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.076200][ T10] [ 3302.078277][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3302.078277][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.078277][ T10] ipv6_find_idev+0x102/0x170 [ 3302.078277][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.078277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.078277][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.078277][ T10] netlink_unicast+0x449/0x710 [ 3302.078277][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.078277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.078277][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.078277][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.078277][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.078277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.078277][ T10] [ 3302.079840][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3302.079840][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.079840][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.079840][ T10] ipv6_find_idev+0x102/0x170 [ 3302.079840][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.079840][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.079840][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.079840][ T10] netlink_unicast+0x449/0x710 [ 3302.079840][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.079840][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.079840][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.079840][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.079840][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.079840][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.079840][ T10] [ 3302.081550][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3302.081849][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3302.081849][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.081849][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.081849][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.081849][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.081849][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.081849][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.081849][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.081849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.081849][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.081849][ T10] netlink_unicast+0x449/0x710 [ 3302.081849][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.081849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.081849][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.081849][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.081849][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.081849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.081849][ T10] [ 3302.083855][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3302.083855][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.083855][ T10] ipv6_find_idev+0x102/0x170 [ 3302.083855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.083855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.083855][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.083855][ T10] netlink_unicast+0x449/0x710 [ 3302.083855][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.083855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.083855][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.083855][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.083855][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.083855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.083855][ T10] [ 3302.085538][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3302.085538][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.085538][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.085538][ T10] ipv6_find_idev+0x102/0x170 [ 3302.085538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.085538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.085538][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.085538][ T10] netlink_unicast+0x449/0x710 [ 3302.085538][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.085538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.085538][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.085538][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.085538][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.085538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.085538][ T10] [ 3302.087250][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3302.087515][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3302.087515][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.087515][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.087515][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.087515][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.087515][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.087515][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.087515][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.087515][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.087515][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.087515][ T10] netlink_unicast+0x449/0x710 [ 3302.087515][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.087515][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.087515][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.087515][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.087515][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.087515][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.087515][ T10] [ 3302.089537][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3302.089537][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.089537][ T10] ipv6_find_idev+0x102/0x170 [ 3302.089537][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.089537][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.089537][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.089537][ T10] netlink_unicast+0x449/0x710 [ 3302.089537][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.089537][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.089537][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.089537][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.089537][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.089537][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.089537][ T10] [ 3302.091089][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3302.091089][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.091089][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.091089][ T10] ipv6_find_idev+0x102/0x170 [ 3302.091089][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.091089][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.091089][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.091089][ T10] netlink_unicast+0x449/0x710 [ 3302.091089][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.091089][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.091089][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.091089][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.091089][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.091089][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.091089][ T10] [ 3302.092789][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3302.093063][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3302.093063][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.093063][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.093063][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.093063][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.093063][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.093063][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.093063][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.093063][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.093063][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.093063][ T10] netlink_unicast+0x449/0x710 [ 3302.093063][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.093063][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.093063][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.093063][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.093063][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.093063][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.093063][ T10] [ 3302.095130][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3302.095130][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.095130][ T10] ipv6_find_idev+0x102/0x170 [ 3302.095130][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.095130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.095130][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.095130][ T10] netlink_unicast+0x449/0x710 [ 3302.095130][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.095130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.095130][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.095130][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.095130][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.095130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.095130][ T10] [ 3302.096682][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3302.096682][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.096682][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.096682][ T10] ipv6_find_idev+0x102/0x170 [ 3302.096682][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.096682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.096682][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.096682][ T10] netlink_unicast+0x449/0x710 [ 3302.096682][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.096682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.096682][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.096682][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.096682][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.096682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.096682][ T10] [ 3302.098417][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3302.098766][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3302.098766][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.098766][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.098766][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.098766][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.098766][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.098766][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.098766][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.098766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.098766][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.098766][ T10] netlink_unicast+0x449/0x710 [ 3302.098766][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.098766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.098766][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.098766][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.098766][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.098766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.098766][ T10] [ 3302.100783][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3302.100783][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.100783][ T10] ipv6_find_idev+0x102/0x170 [ 3302.100783][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.100783][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.100783][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.100783][ T10] netlink_unicast+0x449/0x710 [ 3302.100783][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.100783][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.100783][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.100783][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.100783][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.100783][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.100783][ T10] [ 3302.102329][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3302.102329][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.102329][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.102329][ T10] ipv6_find_idev+0x102/0x170 [ 3302.102329][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.102329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.102329][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.102329][ T10] netlink_unicast+0x449/0x710 [ 3302.102329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.102329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.102329][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.102329][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.102329][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.102329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.102329][ T10] [ 3302.104505][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3302.104833][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3302.104833][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.104833][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.104833][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.104833][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.104833][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.104833][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.104833][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.104833][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.104833][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.104833][ T10] netlink_unicast+0x449/0x710 [ 3302.104833][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.104833][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.104833][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.104833][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.104833][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.104833][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.104833][ T10] [ 3302.107036][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3302.107036][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.107036][ T10] ipv6_find_idev+0x102/0x170 [ 3302.107036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.107036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.107036][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.107036][ T10] netlink_unicast+0x449/0x710 [ 3302.107036][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.107036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.107036][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.107036][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.107036][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.107036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.107036][ T10] [ 3302.108761][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3302.108761][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.108761][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.108761][ T10] ipv6_find_idev+0x102/0x170 [ 3302.108761][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.108761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.108761][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.108761][ T10] netlink_unicast+0x449/0x710 [ 3302.108761][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.108761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.108761][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.108761][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.108761][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.108761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.108761][ T10] [ 3302.110705][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3302.110968][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3302.110968][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.110968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.110968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.110968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.110968][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.110968][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.110968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.110968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.110968][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.110968][ T10] netlink_unicast+0x449/0x710 [ 3302.110968][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.110968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.110968][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.110968][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.110968][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.110968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.110968][ T10] [ 3302.113208][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3302.113208][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.113208][ T10] ipv6_find_idev+0x102/0x170 [ 3302.113208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.113208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.113208][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.113208][ T10] netlink_unicast+0x449/0x710 [ 3302.113208][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.113208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.113208][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.113208][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.113208][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.113208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.113208][ T10] [ 3302.114882][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3302.114882][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.114882][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.114882][ T10] ipv6_find_idev+0x102/0x170 [ 3302.114882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.114882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.114882][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.114882][ T10] netlink_unicast+0x449/0x710 [ 3302.114882][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.114882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.114882][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.114882][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.114882][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.114882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.114882][ T10] [ 3302.116917][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3302.117179][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3302.117179][ T10] netdev_get_by_index+0x5e/0x80 [ 3302.117179][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3302.117179][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3302.117179][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3302.117179][ T10] ipv6_add_addr+0x411/0x2000 [ 3302.117179][ T10] inet6_addr_add+0x30e/0xa40 [ 3302.117179][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.117179][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.117179][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.117179][ T10] netlink_unicast+0x449/0x710 [ 3302.117179][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.117179][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.117179][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.117179][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.117179][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.117179][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.117179][ T10] [ 3302.119374][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3302.119374][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3302.119374][ T10] ipv6_find_idev+0x102/0x170 [ 3302.119374][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.119374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.119374][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.119374][ T10] netlink_unicast+0x449/0x710 [ 3302.119374][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.119374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.119374][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.119374][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.119374][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.119374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.119374][ T10] [ 3302.121102][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3302.121102][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3302.121102][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3302.121102][ T10] ipv6_find_idev+0x102/0x170 [ 3302.121102][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.121102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.121102][ T10] netlink_rcv_skb+0x130/0x360 [ 3302.121102][ T10] netlink_unicast+0x449/0x710 [ 3302.121102][ T10] netlink_sendmsg+0x723/0xbe0 [ 3302.121102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3302.121102][ T10] ___sys_sendmsg+0xee/0x170 [ 3302.121102][ T10] __sys_sendmsg+0xcd/0x170 [ 3302.121102][ T10] do_syscall_64+0xc6/0x1e0 [ 3302.121102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.121102][ T10] [ 3312.363776][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3312.364270][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3312.364270][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.364270][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.364270][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.364270][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.364270][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.364270][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.364270][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.364270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.364270][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.364270][ T10] netlink_unicast+0x449/0x710 [ 3312.364270][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.364270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.364270][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.364270][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.364270][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.364270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.364270][ T10] [ 3312.366338][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3312.366338][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.366338][ T10] ipv6_find_idev+0x102/0x170 [ 3312.366338][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.366338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.366338][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.366338][ T10] netlink_unicast+0x449/0x710 [ 3312.366338][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.366338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.366338][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.366338][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.366338][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.366338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.366338][ T10] [ 3312.367891][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3312.367891][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.367891][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.367891][ T10] ipv6_find_idev+0x102/0x170 [ 3312.367891][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.367891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.367891][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.367891][ T10] netlink_unicast+0x449/0x710 [ 3312.367891][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.367891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.367891][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.367891][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.367891][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.367891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.367891][ T10] [ 3312.369593][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3312.369892][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3312.369892][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.369892][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.369892][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.369892][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.369892][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.369892][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.369892][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.369892][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.369892][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.369892][ T10] netlink_unicast+0x449/0x710 [ 3312.369892][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.369892][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.369892][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.369892][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.369892][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.369892][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.369892][ T10] [ 3312.371909][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3312.371909][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.371909][ T10] ipv6_find_idev+0x102/0x170 [ 3312.371909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.371909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.371909][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.371909][ T10] netlink_unicast+0x449/0x710 [ 3312.371909][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.371909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.371909][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.371909][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.371909][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.371909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.371909][ T10] [ 3312.373466][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3312.373466][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.373466][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.373466][ T10] ipv6_find_idev+0x102/0x170 [ 3312.373466][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.373466][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.373466][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.373466][ T10] netlink_unicast+0x449/0x710 [ 3312.373466][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.373466][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.373466][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.373466][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.373466][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.373466][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.373466][ T10] [ 3312.375173][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3312.375449][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3312.375449][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.375449][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.375449][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.375449][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.375449][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.375449][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.375449][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.375449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.375449][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.375449][ T10] netlink_unicast+0x449/0x710 [ 3312.375449][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.375449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.375449][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.375449][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.375449][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.375449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.375449][ T10] [ 3312.377460][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3312.377460][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.377460][ T10] ipv6_find_idev+0x102/0x170 [ 3312.377460][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.377460][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.377460][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.377460][ T10] netlink_unicast+0x449/0x710 [ 3312.377460][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.377460][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.377460][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.377460][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.377460][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.377460][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.377460][ T10] [ 3312.379012][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3312.379012][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.379012][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.379012][ T10] ipv6_find_idev+0x102/0x170 [ 3312.379012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.379012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.379012][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.379012][ T10] netlink_unicast+0x449/0x710 [ 3312.379012][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.379012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.379012][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.379012][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.379012][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.379012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.379012][ T10] [ 3312.380723][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3312.380985][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3312.380985][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.380985][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.380985][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.380985][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.380985][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.380985][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.380985][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.380985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.380985][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.380985][ T10] netlink_unicast+0x449/0x710 [ 3312.380985][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.380985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.380985][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.380985][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.380985][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.380985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.380985][ T10] [ 3312.382999][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3312.382999][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.382999][ T10] ipv6_find_idev+0x102/0x170 [ 3312.382999][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.382999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.382999][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.382999][ T10] netlink_unicast+0x449/0x710 [ 3312.382999][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.382999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.382999][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.382999][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.382999][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.382999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.382999][ T10] [ 3312.384544][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3312.384544][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.384544][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.384544][ T10] ipv6_find_idev+0x102/0x170 [ 3312.384544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.384544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.384544][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.384544][ T10] netlink_unicast+0x449/0x710 [ 3312.384544][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.384544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.384544][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.384544][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.384544][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.384544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.384544][ T10] [ 3312.386682][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3312.386951][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3312.386951][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.386951][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.386951][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.386951][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.386951][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.386951][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.386951][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.386951][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.386951][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.386951][ T10] netlink_unicast+0x449/0x710 [ 3312.386951][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.386951][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.386951][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.386951][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.386951][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.386951][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.386951][ T10] [ 3312.389218][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3312.389218][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.389218][ T10] ipv6_find_idev+0x102/0x170 [ 3312.389218][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.389218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.389218][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.389218][ T10] netlink_unicast+0x449/0x710 [ 3312.389218][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.389218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.389218][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.389218][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.389218][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.389218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.389218][ T10] [ 3312.390755][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3312.390755][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.390755][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.390755][ T10] ipv6_find_idev+0x102/0x170 [ 3312.390755][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.390755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.390755][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.390755][ T10] netlink_unicast+0x449/0x710 [ 3312.390755][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.390755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.390755][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.390755][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.390755][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.390755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.390755][ T10] [ 3312.392507][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3312.392836][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3312.392836][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.392836][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.392836][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.392836][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.392836][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.392836][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.392836][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.392836][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.392836][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.392836][ T10] netlink_unicast+0x449/0x710 [ 3312.392836][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.392836][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.392836][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.392836][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.392836][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.392836][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.392836][ T10] [ 3312.394979][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3312.394979][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.394979][ T10] ipv6_find_idev+0x102/0x170 [ 3312.394979][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.394979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.394979][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.394979][ T10] netlink_unicast+0x449/0x710 [ 3312.394979][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.394979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.394979][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.394979][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.394979][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.394979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.394979][ T10] [ 3312.396759][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3312.396759][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.396759][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.396759][ T10] ipv6_find_idev+0x102/0x170 [ 3312.396759][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.396759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.396759][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.396759][ T10] netlink_unicast+0x449/0x710 [ 3312.396759][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.396759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.396759][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.396759][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.396759][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.396759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.396759][ T10] [ 3312.398663][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3312.398941][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3312.398941][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.398941][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.398941][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.398941][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.398941][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.398941][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.398941][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.398941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.398941][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.398941][ T10] netlink_unicast+0x449/0x710 [ 3312.398941][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.398941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.398941][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.398941][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.398941][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.398941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.398941][ T10] [ 3312.401185][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3312.401185][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.401185][ T10] ipv6_find_idev+0x102/0x170 [ 3312.401185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.401185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.401185][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.401185][ T10] netlink_unicast+0x449/0x710 [ 3312.401185][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.401185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.401185][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.401185][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.401185][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.401185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.401185][ T10] [ 3312.402914][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3312.402914][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.402914][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.402914][ T10] ipv6_find_idev+0x102/0x170 [ 3312.402914][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.402914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.402914][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.402914][ T10] netlink_unicast+0x449/0x710 [ 3312.402914][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.402914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.402914][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.402914][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.402914][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.402914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.402914][ T10] [ 3312.404823][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3312.405085][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3312.405085][ T10] netdev_get_by_index+0x5e/0x80 [ 3312.405085][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3312.405085][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3312.405085][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3312.405085][ T10] ipv6_add_addr+0x411/0x2000 [ 3312.405085][ T10] inet6_addr_add+0x30e/0xa40 [ 3312.405085][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3312.405085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.405085][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.405085][ T10] netlink_unicast+0x449/0x710 [ 3312.405085][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.405085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.405085][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.405085][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.405085][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.405085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.405085][ T10] [ 3312.407374][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3312.407374][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3312.407374][ T10] ipv6_find_idev+0x102/0x170 [ 3312.407374][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.407374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.407374][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.407374][ T10] netlink_unicast+0x449/0x710 [ 3312.407374][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.407374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.407374][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.407374][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.407374][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.407374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.407374][ T10] [ 3312.409091][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3312.409091][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3312.409091][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3312.409091][ T10] ipv6_find_idev+0x102/0x170 [ 3312.409091][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3312.409091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3312.409091][ T10] netlink_rcv_skb+0x130/0x360 [ 3312.409091][ T10] netlink_unicast+0x449/0x710 [ 3312.409091][ T10] netlink_sendmsg+0x723/0xbe0 [ 3312.409091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3312.409091][ T10] ___sys_sendmsg+0xee/0x170 [ 3312.409091][ T10] __sys_sendmsg+0xcd/0x170 [ 3312.409091][ T10] do_syscall_64+0xc6/0x1e0 [ 3312.409091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3312.409091][ T10] [ 3319.075843][ T42] INFO: task modprobe:14797 blocked for more than 245 seconds. [ 3319.076221][ T42] Not tainted 6.8.0-virtme #1 [ 3319.076344][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3319.076555][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 3319.076846][ T42] Call Trace: [ 3319.076951][ T42] [ 3319.077024][ T42] __schedule+0x705/0x1ac0 [ 3319.077160][ T42] ? __pfx___schedule+0x10/0x10 [ 3319.077285][ T42] ? schedule+0x1a5/0x210 [ 3319.077395][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3319.077531][ T42] ? mark_lock+0x38/0x3e0 [ 3319.077663][ T42] ? do_raw_spin_lock+0x131/0x270 [ 3319.077804][ T42] ? schedule+0x1a5/0x210 [ 3319.077902][ T42] schedule+0xdf/0x210 [ 3319.077999][ T42] schedule_preempt_disabled+0x15/0x30 [ 3319.078122][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 3319.078252][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 3319.078416][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3319.078546][ T42] ? lock_acquire+0x1c1/0x220 [ 3319.078682][ T42] ? register_pernet_subsys+0x1a/0x50 [ 3319.078823][ T42] down_write+0x1c9/0x200 [ 3319.078922][ T42] ? __pfx_down_write+0x10/0x10 [ 3319.079046][ T42] ? __lock_release+0x103/0x460 [ 3319.079170][ T42] ? __create_object+0x5e/0xb0 [ 3319.079302][ T42] ? __pfx___lock_release+0x10/0x10 [ 3319.079430][ T42] register_pernet_subsys+0x1a/0x50 [ 3319.079566][ T42] tcf_register_action+0xa3/0x600 [ 3319.079708][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 3319.079873][ T42] do_one_initcall+0xc8/0x3f0 [ 3319.080001][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 3319.080134][ T42] ? __create_object+0x5e/0xb0 [ 3319.080261][ T42] ? kasan_unpoison+0x27/0x60 [ 3319.080389][ T42] do_init_module+0x233/0x740 [ 3319.080526][ T42] load_module+0x16b5/0x2350 [ 3319.080685][ T42] ? __pfx_load_module+0x10/0x10 [ 3319.080821][ T42] ? kernel_read_file+0x3d2/0x520 [ 3319.080963][ T42] ? kernel_read_file+0x300/0x520 [ 3319.081092][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 3319.081228][ T42] ? init_module_from_file+0xd2/0x130 [ 3319.081353][ T42] init_module_from_file+0xd2/0x130 [ 3319.081477][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 3319.081632][ T42] ? __lock_release+0x103/0x460 [ 3319.081780][ T42] ? idempotent_init_module+0x32a/0x620 [ 3319.081915][ T42] ? idempotent_init_module+0x32a/0x620 [ 3319.082043][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 3319.082172][ T42] idempotent_init_module+0x342/0x620 [ 3319.082301][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 3319.082473][ T42] __x64_sys_finit_module+0xbe/0x130 [ 3319.082605][ T42] do_syscall_64+0xc6/0x1e0 [ 3319.082744][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3319.082903][ T42] RIP: 0033:0x7f188f3c6e5d [ 3319.083036][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3319.083223][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 3319.083427][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 3319.083609][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 3319.083808][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 3319.083997][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 3319.084198][ T42] [ 3319.084293][ T42] [ 3319.084293][ T42] Showing all locks held in the system: [ 3319.084467][ T42] 3 locks held by kworker/u16:0/10: [ 3319.084597][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3319.084862][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3319.085097][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 3319.085322][ T42] 1 lock held by khungtaskd/42: [ 3319.085449][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 3319.085693][ T42] 2 locks held by kworker/u20:2/10034: [ 3319.085832][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3319.086085][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3319.086365][ T42] 1 lock held by modprobe/14797: [ 3319.086484][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 3319.086746][ T42] [ 3319.086808][ T42] ============================================= [ 3319.086808][ T42] [ 3322.491775][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3322.492239][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3322.492239][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.492239][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.492239][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.492239][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.492239][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.492239][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.492239][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.492239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.492239][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.492239][ T10] netlink_unicast+0x449/0x710 [ 3322.492239][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.492239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.492239][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.492239][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.492239][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.492239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.492239][ T10] [ 3322.494452][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3322.494452][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.494452][ T10] ipv6_find_idev+0x102/0x170 [ 3322.494452][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.494452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.494452][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.494452][ T10] netlink_unicast+0x449/0x710 [ 3322.494452][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.494452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.494452][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.494452][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.494452][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.494452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.494452][ T10] [ 3322.496192][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3322.496192][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.496192][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.496192][ T10] ipv6_find_idev+0x102/0x170 [ 3322.496192][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.496192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.496192][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.496192][ T10] netlink_unicast+0x449/0x710 [ 3322.496192][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.496192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.496192][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.496192][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.496192][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.496192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.496192][ T10] [ 3322.498037][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3322.498346][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3322.498346][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.498346][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.498346][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.498346][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.498346][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.498346][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.498346][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.498346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.498346][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.498346][ T10] netlink_unicast+0x449/0x710 [ 3322.498346][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.498346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.498346][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.498346][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.498346][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.498346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.498346][ T10] [ 3322.500530][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3322.500530][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.500530][ T10] ipv6_find_idev+0x102/0x170 [ 3322.500530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.500530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.500530][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.500530][ T10] netlink_unicast+0x449/0x710 [ 3322.500530][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.500530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.500530][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.500530][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.500530][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.500530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.500530][ T10] [ 3322.502215][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3322.502215][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.502215][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.502215][ T10] ipv6_find_idev+0x102/0x170 [ 3322.502215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.502215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.502215][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.502215][ T10] netlink_unicast+0x449/0x710 [ 3322.502215][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.502215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.502215][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.502215][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.502215][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.502215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.502215][ T10] [ 3322.504042][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3322.504329][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3322.504329][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.504329][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.504329][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.504329][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.504329][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.504329][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.504329][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.504329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.504329][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.504329][ T10] netlink_unicast+0x449/0x710 [ 3322.504329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.504329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.504329][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.504329][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.504329][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.504329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.504329][ T10] [ 3322.506514][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3322.506514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.506514][ T10] ipv6_find_idev+0x102/0x170 [ 3322.506514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.506514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.506514][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.506514][ T10] netlink_unicast+0x449/0x710 [ 3322.506514][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.506514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.506514][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.506514][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.506514][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.506514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.506514][ T10] [ 3322.508182][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3322.508182][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.508182][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.508182][ T10] ipv6_find_idev+0x102/0x170 [ 3322.508182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.508182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.508182][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.508182][ T10] netlink_unicast+0x449/0x710 [ 3322.508182][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.508182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.508182][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.508182][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.508182][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.508182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.508182][ T10] [ 3322.510010][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3322.510308][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3322.510308][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.510308][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.510308][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.510308][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.510308][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.510308][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.510308][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.510308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.510308][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.510308][ T10] netlink_unicast+0x449/0x710 [ 3322.510308][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.510308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.510308][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.510308][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.510308][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.510308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.510308][ T10] [ 3322.512509][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3322.512509][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.512509][ T10] ipv6_find_idev+0x102/0x170 [ 3322.512509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.512509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.512509][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.512509][ T10] netlink_unicast+0x449/0x710 [ 3322.512509][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.512509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.512509][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.512509][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.512509][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.512509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.512509][ T10] [ 3322.514206][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3322.514206][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.514206][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.514206][ T10] ipv6_find_idev+0x102/0x170 [ 3322.514206][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.514206][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.514206][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.514206][ T10] netlink_unicast+0x449/0x710 [ 3322.514206][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.514206][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.514206][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.514206][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.514206][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.514206][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.514206][ T10] [ 3322.516459][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3322.517088][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3322.517088][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.517088][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.517088][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.517088][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.517088][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.517088][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.517088][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.517088][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.517088][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.517088][ T10] netlink_unicast+0x449/0x710 [ 3322.517088][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.517088][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.517088][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.517088][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.517088][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.517088][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.517088][ T10] [ 3322.519270][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3322.519270][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.519270][ T10] ipv6_find_idev+0x102/0x170 [ 3322.519270][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.519270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.519270][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.519270][ T10] netlink_unicast+0x449/0x710 [ 3322.519270][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.519270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.519270][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.519270][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.519270][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.519270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.519270][ T10] [ 3322.520946][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3322.520946][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.520946][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.520946][ T10] ipv6_find_idev+0x102/0x170 [ 3322.520946][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.520946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.520946][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.520946][ T10] netlink_unicast+0x449/0x710 [ 3322.520946][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.520946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.520946][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.520946][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.520946][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.520946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.520946][ T10] [ 3322.522797][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3322.523080][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3322.523080][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.523080][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.523080][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.523080][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.523080][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.523080][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.523080][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.523080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.523080][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.523080][ T10] netlink_unicast+0x449/0x710 [ 3322.523080][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.523080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.523080][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.523080][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.523080][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.523080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.523080][ T10] [ 3322.525292][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3322.525292][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.525292][ T10] ipv6_find_idev+0x102/0x170 [ 3322.525292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.525292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.525292][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.525292][ T10] netlink_unicast+0x449/0x710 [ 3322.525292][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.525292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.525292][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.525292][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.525292][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.525292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.525292][ T10] [ 3322.527037][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3322.527037][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.527037][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.527037][ T10] ipv6_find_idev+0x102/0x170 [ 3322.527037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.527037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.527037][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.527037][ T10] netlink_unicast+0x449/0x710 [ 3322.527037][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.527037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.527037][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.527037][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.527037][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.527037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.527037][ T10] [ 3322.529244][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3322.529528][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3322.529528][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.529528][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.529528][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.529528][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.529528][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.529528][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.529528][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.529528][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.529528][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.529528][ T10] netlink_unicast+0x449/0x710 [ 3322.529528][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.529528][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.529528][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.529528][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.529528][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.529528][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.529528][ T10] [ 3322.531892][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3322.531892][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.531892][ T10] ipv6_find_idev+0x102/0x170 [ 3322.531892][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.531892][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.531892][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.531892][ T10] netlink_unicast+0x449/0x710 [ 3322.531892][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.531892][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.531892][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.531892][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.531892][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.531892][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.531892][ T10] [ 3322.533749][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3322.533749][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.533749][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.533749][ T10] ipv6_find_idev+0x102/0x170 [ 3322.533749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.533749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.533749][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.533749][ T10] netlink_unicast+0x449/0x710 [ 3322.533749][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.533749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.533749][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.533749][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.533749][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.533749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.533749][ T10] [ 3322.535878][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3322.536159][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3322.536159][ T10] netdev_get_by_index+0x5e/0x80 [ 3322.536159][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3322.536159][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3322.536159][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3322.536159][ T10] ipv6_add_addr+0x411/0x2000 [ 3322.536159][ T10] inet6_addr_add+0x30e/0xa40 [ 3322.536159][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3322.536159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.536159][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.536159][ T10] netlink_unicast+0x449/0x710 [ 3322.536159][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.536159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.536159][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.536159][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.536159][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.536159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.536159][ T10] [ 3322.538506][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3322.538506][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3322.538506][ T10] ipv6_find_idev+0x102/0x170 [ 3322.538506][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.538506][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.538506][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.538506][ T10] netlink_unicast+0x449/0x710 [ 3322.538506][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.538506][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.538506][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.538506][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.538506][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.538506][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.538506][ T10] [ 3322.540404][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3322.540404][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3322.540404][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3322.540404][ T10] ipv6_find_idev+0x102/0x170 [ 3322.540404][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3322.540404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3322.540404][ T10] netlink_rcv_skb+0x130/0x360 [ 3322.540404][ T10] netlink_unicast+0x449/0x710 [ 3322.540404][ T10] netlink_sendmsg+0x723/0xbe0 [ 3322.540404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3322.540404][ T10] ___sys_sendmsg+0xee/0x170 [ 3322.540404][ T10] __sys_sendmsg+0xcd/0x170 [ 3322.540404][ T10] do_syscall_64+0xc6/0x1e0 [ 3322.540404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3322.540404][ T10] [ 3332.699827][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3332.700344][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3332.700344][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.700344][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.700344][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.700344][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.700344][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.700344][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.700344][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.700344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.700344][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.700344][ T10] netlink_unicast+0x449/0x710 [ 3332.700344][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.700344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.700344][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.700344][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.700344][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.700344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.700344][ T10] [ 3332.702636][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3332.702636][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.702636][ T10] ipv6_find_idev+0x102/0x170 [ 3332.702636][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.702636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.702636][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.702636][ T10] netlink_unicast+0x449/0x710 [ 3332.702636][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.702636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.702636][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.702636][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.702636][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.702636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.702636][ T10] [ 3332.704361][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3332.704361][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.704361][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.704361][ T10] ipv6_find_idev+0x102/0x170 [ 3332.704361][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.704361][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.704361][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.704361][ T10] netlink_unicast+0x449/0x710 [ 3332.704361][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.704361][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.704361][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.704361][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.704361][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.704361][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.704361][ T10] [ 3332.706320][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3332.706623][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3332.706623][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.706623][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.706623][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.706623][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.706623][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.706623][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.706623][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.706623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.706623][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.706623][ T10] netlink_unicast+0x449/0x710 [ 3332.706623][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.706623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.706623][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.706623][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.706623][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.706623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.706623][ T10] [ 3332.708977][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3332.708977][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.708977][ T10] ipv6_find_idev+0x102/0x170 [ 3332.708977][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.708977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.708977][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.708977][ T10] netlink_unicast+0x449/0x710 [ 3332.708977][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.708977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.708977][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.708977][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.708977][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.708977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.708977][ T10] [ 3332.710742][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3332.710742][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.710742][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.710742][ T10] ipv6_find_idev+0x102/0x170 [ 3332.710742][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.710742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.710742][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.710742][ T10] netlink_unicast+0x449/0x710 [ 3332.710742][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.710742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.710742][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.710742][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.710742][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.710742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.710742][ T10] [ 3332.712654][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3332.712968][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3332.712968][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.712968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.712968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.712968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.712968][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.712968][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.712968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.712968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.712968][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.712968][ T10] netlink_unicast+0x449/0x710 [ 3332.712968][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.712968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.712968][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.712968][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.712968][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.712968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.712968][ T10] [ 3332.715265][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3332.715265][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.715265][ T10] ipv6_find_idev+0x102/0x170 [ 3332.715265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.715265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.715265][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.715265][ T10] netlink_unicast+0x449/0x710 [ 3332.715265][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.715265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.715265][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.715265][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.715265][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.715265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.715265][ T10] [ 3332.717031][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3332.717031][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.717031][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.717031][ T10] ipv6_find_idev+0x102/0x170 [ 3332.717031][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.717031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.717031][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.717031][ T10] netlink_unicast+0x449/0x710 [ 3332.717031][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.717031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.717031][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.717031][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.717031][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.717031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.717031][ T10] [ 3332.718985][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3332.719302][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3332.719302][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.719302][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.719302][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.719302][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.719302][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.719302][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.719302][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.719302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.719302][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.719302][ T10] netlink_unicast+0x449/0x710 [ 3332.719302][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.719302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.719302][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.719302][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.719302][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.719302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.719302][ T10] [ 3332.721492][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3332.721492][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.721492][ T10] ipv6_find_idev+0x102/0x170 [ 3332.721492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.721492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.721492][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.721492][ T10] netlink_unicast+0x449/0x710 [ 3332.721492][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.721492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.721492][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.721492][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.721492][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.721492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.721492][ T10] [ 3332.723235][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3332.723235][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.723235][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.723235][ T10] ipv6_find_idev+0x102/0x170 [ 3332.723235][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.723235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.723235][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.723235][ T10] netlink_unicast+0x449/0x710 [ 3332.723235][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.723235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.723235][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.723235][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.723235][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.723235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.723235][ T10] [ 3332.725557][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3332.726196][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3332.726196][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.726196][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.726196][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.726196][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.726196][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.726196][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.726196][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.726196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.726196][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.726196][ T10] netlink_unicast+0x449/0x710 [ 3332.726196][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.726196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.726196][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.726196][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.726196][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.726196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.726196][ T10] [ 3332.728458][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3332.728458][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.728458][ T10] ipv6_find_idev+0x102/0x170 [ 3332.728458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.728458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.728458][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.728458][ T10] netlink_unicast+0x449/0x710 [ 3332.728458][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.728458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.728458][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.728458][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.728458][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.728458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.728458][ T10] [ 3332.730112][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3332.730112][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.730112][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.730112][ T10] ipv6_find_idev+0x102/0x170 [ 3332.730112][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.730112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.730112][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.730112][ T10] netlink_unicast+0x449/0x710 [ 3332.730112][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.730112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.730112][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.730112][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.730112][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.730112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.730112][ T10] [ 3332.731950][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3332.732239][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3332.732239][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.732239][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.732239][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.732239][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.732239][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.732239][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.732239][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.732239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.732239][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.732239][ T10] netlink_unicast+0x449/0x710 [ 3332.732239][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.732239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.732239][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.732239][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.732239][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.732239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.732239][ T10] [ 3332.734519][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3332.734519][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.734519][ T10] ipv6_find_idev+0x102/0x170 [ 3332.734519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.734519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.734519][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.734519][ T10] netlink_unicast+0x449/0x710 [ 3332.734519][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.734519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.734519][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.734519][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.734519][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.734519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.734519][ T10] [ 3332.736334][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3332.736334][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.736334][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.736334][ T10] ipv6_find_idev+0x102/0x170 [ 3332.736334][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.736334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.736334][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.736334][ T10] netlink_unicast+0x449/0x710 [ 3332.736334][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.736334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.736334][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.736334][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.736334][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.736334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.736334][ T10] [ 3332.738514][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3332.738857][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3332.738857][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.738857][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.738857][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.738857][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.738857][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.738857][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.738857][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.738857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.738857][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.738857][ T10] netlink_unicast+0x449/0x710 [ 3332.738857][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.738857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.738857][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.738857][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.738857][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.738857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.738857][ T10] [ 3332.741348][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3332.741348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.741348][ T10] ipv6_find_idev+0x102/0x170 [ 3332.741348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.741348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.741348][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.741348][ T10] netlink_unicast+0x449/0x710 [ 3332.741348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.741348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.741348][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.741348][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.741348][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.741348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.741348][ T10] [ 3332.743244][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3332.743244][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.743244][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.743244][ T10] ipv6_find_idev+0x102/0x170 [ 3332.743244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.743244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.743244][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.743244][ T10] netlink_unicast+0x449/0x710 [ 3332.743244][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.743244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.743244][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.743244][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.743244][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.743244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.743244][ T10] [ 3332.745426][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3332.745775][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3332.745775][ T10] netdev_get_by_index+0x5e/0x80 [ 3332.745775][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3332.745775][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3332.745775][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3332.745775][ T10] ipv6_add_addr+0x411/0x2000 [ 3332.745775][ T10] inet6_addr_add+0x30e/0xa40 [ 3332.745775][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3332.745775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.745775][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.745775][ T10] netlink_unicast+0x449/0x710 [ 3332.745775][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.745775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.745775][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.745775][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.745775][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.745775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.745775][ T10] [ 3332.748211][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3332.748211][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3332.748211][ T10] ipv6_find_idev+0x102/0x170 [ 3332.748211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.748211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.748211][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.748211][ T10] netlink_unicast+0x449/0x710 [ 3332.748211][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.748211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.748211][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.748211][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.748211][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.748211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.748211][ T10] [ 3332.750113][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3332.750113][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3332.750113][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3332.750113][ T10] ipv6_find_idev+0x102/0x170 [ 3332.750113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3332.750113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3332.750113][ T10] netlink_rcv_skb+0x130/0x360 [ 3332.750113][ T10] netlink_unicast+0x449/0x710 [ 3332.750113][ T10] netlink_sendmsg+0x723/0xbe0 [ 3332.750113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3332.750113][ T10] ___sys_sendmsg+0xee/0x170 [ 3332.750113][ T10] __sys_sendmsg+0xcd/0x170 [ 3332.750113][ T10] do_syscall_64+0xc6/0x1e0 [ 3332.750113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3332.750113][ T10] [ 3342.987801][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3342.988270][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3342.988270][ T10] netdev_get_by_index+0x5e/0x80 [ 3342.988270][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3342.988270][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3342.988270][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3342.988270][ T10] ipv6_add_addr+0x411/0x2000 [ 3342.988270][ T10] inet6_addr_add+0x30e/0xa40 [ 3342.988270][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3342.988270][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3342.988270][ T10] netlink_rcv_skb+0x130/0x360 [ 3342.988270][ T10] netlink_unicast+0x449/0x710 [ 3342.988270][ T10] netlink_sendmsg+0x723/0xbe0 [ 3342.988270][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3342.988270][ T10] ___sys_sendmsg+0xee/0x170 [ 3342.988270][ T10] __sys_sendmsg+0xcd/0x170 [ 3342.988270][ T10] do_syscall_64+0xc6/0x1e0 [ 3342.988270][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3342.988270][ T10] [ 3342.990535][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3342.990535][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3342.990535][ T10] ipv6_find_idev+0x102/0x170 [ 3342.990535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3342.990535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3342.990535][ T10] netlink_rcv_skb+0x130/0x360 [ 3342.990535][ T10] netlink_unicast+0x449/0x710 [ 3342.990535][ T10] netlink_sendmsg+0x723/0xbe0 [ 3342.990535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3342.990535][ T10] ___sys_sendmsg+0xee/0x170 [ 3342.990535][ T10] __sys_sendmsg+0xcd/0x170 [ 3342.990535][ T10] do_syscall_64+0xc6/0x1e0 [ 3342.990535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3342.990535][ T10] [ 3342.992235][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3342.992235][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3342.992235][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3342.992235][ T10] ipv6_find_idev+0x102/0x170 [ 3342.992235][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3342.992235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3342.992235][ T10] netlink_rcv_skb+0x130/0x360 [ 3342.992235][ T10] netlink_unicast+0x449/0x710 [ 3342.992235][ T10] netlink_sendmsg+0x723/0xbe0 [ 3342.992235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3342.992235][ T10] ___sys_sendmsg+0xee/0x170 [ 3342.992235][ T10] __sys_sendmsg+0xcd/0x170 [ 3342.992235][ T10] do_syscall_64+0xc6/0x1e0 [ 3342.992235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3342.992235][ T10] [ 3342.994113][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3342.994407][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3342.994407][ T10] netdev_get_by_index+0x5e/0x80 [ 3342.994407][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3342.994407][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3342.994407][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3342.994407][ T10] ipv6_add_addr+0x411/0x2000 [ 3342.994407][ T10] inet6_addr_add+0x30e/0xa40 [ 3342.994407][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3342.994407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3342.994407][ T10] netlink_rcv_skb+0x130/0x360 [ 3342.994407][ T10] netlink_unicast+0x449/0x710 [ 3342.994407][ T10] netlink_sendmsg+0x723/0xbe0 [ 3342.994407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3342.994407][ T10] ___sys_sendmsg+0xee/0x170 [ 3342.994407][ T10] __sys_sendmsg+0xcd/0x170 [ 3342.994407][ T10] do_syscall_64+0xc6/0x1e0 [ 3342.994407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3342.994407][ T10] [ 3342.996625][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3342.996625][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3342.996625][ T10] ipv6_find_idev+0x102/0x170 [ 3342.996625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3342.996625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3342.996625][ T10] netlink_rcv_skb+0x130/0x360 [ 3342.996625][ T10] netlink_unicast+0x449/0x710 [ 3342.996625][ T10] netlink_sendmsg+0x723/0xbe0 [ 3342.996625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3342.996625][ T10] ___sys_sendmsg+0xee/0x170 [ 3342.996625][ T10] __sys_sendmsg+0xcd/0x170 [ 3342.996625][ T10] do_syscall_64+0xc6/0x1e0 [ 3342.996625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3342.996625][ T10] [ 3342.998317][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3342.998317][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3342.998317][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3342.998317][ T10] ipv6_find_idev+0x102/0x170 [ 3342.998317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3342.998317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3342.998317][ T10] netlink_rcv_skb+0x130/0x360 [ 3342.998317][ T10] netlink_unicast+0x449/0x710 [ 3342.998317][ T10] netlink_sendmsg+0x723/0xbe0 [ 3342.998317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3342.998317][ T10] ___sys_sendmsg+0xee/0x170 [ 3342.998317][ T10] __sys_sendmsg+0xcd/0x170 [ 3342.998317][ T10] do_syscall_64+0xc6/0x1e0 [ 3342.998317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3342.998317][ T10] [ 3343.000172][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3343.000477][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3343.000477][ T10] netdev_get_by_index+0x5e/0x80 [ 3343.000477][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3343.000477][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3343.000477][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3343.000477][ T10] ipv6_add_addr+0x411/0x2000 [ 3343.000477][ T10] inet6_addr_add+0x30e/0xa40 [ 3343.000477][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.000477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.000477][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.000477][ T10] netlink_unicast+0x449/0x710 [ 3343.000477][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.000477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.000477][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.000477][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.000477][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.000477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.000477][ T10] [ 3343.002646][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3343.002646][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3343.002646][ T10] ipv6_find_idev+0x102/0x170 [ 3343.002646][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.002646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.002646][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.002646][ T10] netlink_unicast+0x449/0x710 [ 3343.002646][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.002646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.002646][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.002646][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.002646][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.002646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.002646][ T10] [ 3343.004315][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3343.004315][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3343.004315][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3343.004315][ T10] ipv6_find_idev+0x102/0x170 [ 3343.004315][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.004315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.004315][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.004315][ T10] netlink_unicast+0x449/0x710 [ 3343.004315][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.004315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.004315][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.004315][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.004315][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.004315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.004315][ T10] [ 3343.006171][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3343.006454][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3343.006454][ T10] netdev_get_by_index+0x5e/0x80 [ 3343.006454][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3343.006454][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3343.006454][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3343.006454][ T10] ipv6_add_addr+0x411/0x2000 [ 3343.006454][ T10] inet6_addr_add+0x30e/0xa40 [ 3343.006454][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.006454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.006454][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.006454][ T10] netlink_unicast+0x449/0x710 [ 3343.006454][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.006454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.006454][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.006454][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.006454][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.006454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.006454][ T10] [ 3343.008644][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3343.008644][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3343.008644][ T10] ipv6_find_idev+0x102/0x170 [ 3343.008644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.008644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.008644][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.008644][ T10] netlink_unicast+0x449/0x710 [ 3343.008644][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.008644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.008644][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.008644][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.008644][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.008644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.008644][ T10] [ 3343.010300][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3343.010300][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3343.010300][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3343.010300][ T10] ipv6_find_idev+0x102/0x170 [ 3343.010300][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.010300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.010300][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.010300][ T10] netlink_unicast+0x449/0x710 [ 3343.010300][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.010300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.010300][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.010300][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.010300][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.010300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.010300][ T10] [ 3343.012534][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3343.013155][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3343.013155][ T10] netdev_get_by_index+0x5e/0x80 [ 3343.013155][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3343.013155][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3343.013155][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3343.013155][ T10] ipv6_add_addr+0x411/0x2000 [ 3343.013155][ T10] inet6_addr_add+0x30e/0xa40 [ 3343.013155][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.013155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.013155][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.013155][ T10] netlink_unicast+0x449/0x710 [ 3343.013155][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.013155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.013155][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.013155][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.013155][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.013155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.013155][ T10] [ 3343.015377][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3343.015377][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3343.015377][ T10] ipv6_find_idev+0x102/0x170 [ 3343.015377][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.015377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.015377][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.015377][ T10] netlink_unicast+0x449/0x710 [ 3343.015377][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.015377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.015377][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.015377][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.015377][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.015377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.015377][ T10] [ 3343.017073][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3343.017073][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3343.017073][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3343.017073][ T10] ipv6_find_idev+0x102/0x170 [ 3343.017073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.017073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.017073][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.017073][ T10] netlink_unicast+0x449/0x710 [ 3343.017073][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.017073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.017073][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.017073][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.017073][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.017073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.017073][ T10] [ 3343.018970][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3343.019254][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3343.019254][ T10] netdev_get_by_index+0x5e/0x80 [ 3343.019254][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3343.019254][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3343.019254][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3343.019254][ T10] ipv6_add_addr+0x411/0x2000 [ 3343.019254][ T10] inet6_addr_add+0x30e/0xa40 [ 3343.019254][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.019254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.019254][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.019254][ T10] netlink_unicast+0x449/0x710 [ 3343.019254][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.019254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.019254][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.019254][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.019254][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.019254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.019254][ T10] [ 3343.021458][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3343.021458][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3343.021458][ T10] ipv6_find_idev+0x102/0x170 [ 3343.021458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.021458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.021458][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.021458][ T10] netlink_unicast+0x449/0x710 [ 3343.021458][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.021458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.021458][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.021458][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.021458][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.021458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.021458][ T10] [ 3343.023259][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3343.023259][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3343.023259][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3343.023259][ T10] ipv6_find_idev+0x102/0x170 [ 3343.023259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.023259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.023259][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.023259][ T10] netlink_unicast+0x449/0x710 [ 3343.023259][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.023259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.023259][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.023259][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.023259][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.023259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.023259][ T10] [ 3343.025332][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3343.025619][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3343.025619][ T10] netdev_get_by_index+0x5e/0x80 [ 3343.025619][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3343.025619][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3343.025619][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3343.025619][ T10] ipv6_add_addr+0x411/0x2000 [ 3343.025619][ T10] inet6_addr_add+0x30e/0xa40 [ 3343.025619][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.025619][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.025619][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.025619][ T10] netlink_unicast+0x449/0x710 [ 3343.025619][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.025619][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.025619][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.025619][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.025619][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.025619][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.025619][ T10] [ 3343.028046][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3343.028046][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3343.028046][ T10] ipv6_find_idev+0x102/0x170 [ 3343.028046][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.028046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.028046][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.028046][ T10] netlink_unicast+0x449/0x710 [ 3343.028046][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.028046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.028046][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.028046][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.028046][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.028046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.028046][ T10] [ 3343.029807][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3343.029807][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3343.029807][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3343.029807][ T10] ipv6_find_idev+0x102/0x170 [ 3343.029807][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.029807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.029807][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.029807][ T10] netlink_unicast+0x449/0x710 [ 3343.029807][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.029807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.029807][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.029807][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.029807][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.029807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.029807][ T10] [ 3343.031789][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3343.032082][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3343.032082][ T10] netdev_get_by_index+0x5e/0x80 [ 3343.032082][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3343.032082][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3343.032082][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3343.032082][ T10] ipv6_add_addr+0x411/0x2000 [ 3343.032082][ T10] inet6_addr_add+0x30e/0xa40 [ 3343.032082][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.032082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.032082][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.032082][ T10] netlink_unicast+0x449/0x710 [ 3343.032082][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.032082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.032082][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.032082][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.032082][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.032082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.032082][ T10] [ 3343.034317][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3343.034317][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3343.034317][ T10] ipv6_find_idev+0x102/0x170 [ 3343.034317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.034317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.034317][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.034317][ T10] netlink_unicast+0x449/0x710 [ 3343.034317][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.034317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.034317][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.034317][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.034317][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.034317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.034317][ T10] [ 3343.036108][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3343.036108][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3343.036108][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3343.036108][ T10] ipv6_find_idev+0x102/0x170 [ 3343.036108][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.036108][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.036108][ T10] netlink_rcv_skb+0x130/0x360 [ 3343.036108][ T10] netlink_unicast+0x449/0x710 [ 3343.036108][ T10] netlink_sendmsg+0x723/0xbe0 [ 3343.036108][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3343.036108][ T10] ___sys_sendmsg+0xee/0x170 [ 3343.036108][ T10] __sys_sendmsg+0xcd/0x170 [ 3343.036108][ T10] do_syscall_64+0xc6/0x1e0 [ 3343.036108][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.036108][ T10] [ 3353.275769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3353.276249][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3353.276249][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.276249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.276249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.276249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.276249][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.276249][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.276249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.276249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.276249][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.276249][ T10] netlink_unicast+0x449/0x710 [ 3353.276249][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.276249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.276249][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.276249][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.276249][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.276249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.276249][ T10] [ 3353.278462][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3353.278462][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.278462][ T10] ipv6_find_idev+0x102/0x170 [ 3353.278462][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.278462][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.278462][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.278462][ T10] netlink_unicast+0x449/0x710 [ 3353.278462][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.278462][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.278462][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.278462][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.278462][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.278462][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.278462][ T10] [ 3353.280170][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3353.280170][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.280170][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.280170][ T10] ipv6_find_idev+0x102/0x170 [ 3353.280170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.280170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.280170][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.280170][ T10] netlink_unicast+0x449/0x710 [ 3353.280170][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.280170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.280170][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.280170][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.280170][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.280170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.280170][ T10] [ 3353.282021][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3353.282320][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3353.282320][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.282320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.282320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.282320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.282320][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.282320][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.282320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.282320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.282320][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.282320][ T10] netlink_unicast+0x449/0x710 [ 3353.282320][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.282320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.282320][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.282320][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.282320][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.282320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.282320][ T10] [ 3353.284546][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3353.284546][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.284546][ T10] ipv6_find_idev+0x102/0x170 [ 3353.284546][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.284546][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.284546][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.284546][ T10] netlink_unicast+0x449/0x710 [ 3353.284546][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.284546][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.284546][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.284546][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.284546][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.284546][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.284546][ T10] [ 3353.286250][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3353.286250][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.286250][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.286250][ T10] ipv6_find_idev+0x102/0x170 [ 3353.286250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.286250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.286250][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.286250][ T10] netlink_unicast+0x449/0x710 [ 3353.286250][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.286250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.286250][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.286250][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.286250][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.286250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.286250][ T10] [ 3353.288154][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3353.288440][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3353.288440][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.288440][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.288440][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.288440][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.288440][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.288440][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.288440][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.288440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.288440][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.288440][ T10] netlink_unicast+0x449/0x710 [ 3353.288440][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.288440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.288440][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.288440][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.288440][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.288440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.288440][ T10] [ 3353.290699][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3353.290699][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.290699][ T10] ipv6_find_idev+0x102/0x170 [ 3353.290699][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.290699][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.290699][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.290699][ T10] netlink_unicast+0x449/0x710 [ 3353.290699][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.290699][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.290699][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.290699][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.290699][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.290699][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.290699][ T10] [ 3353.292358][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3353.292358][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.292358][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.292358][ T10] ipv6_find_idev+0x102/0x170 [ 3353.292358][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.292358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.292358][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.292358][ T10] netlink_unicast+0x449/0x710 [ 3353.292358][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.292358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.292358][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.292358][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.292358][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.292358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.292358][ T10] [ 3353.294214][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3353.294525][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3353.294525][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.294525][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.294525][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.294525][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.294525][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.294525][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.294525][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.294525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.294525][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.294525][ T10] netlink_unicast+0x449/0x710 [ 3353.294525][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.294525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.294525][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.294525][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.294525][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.294525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.294525][ T10] [ 3353.296709][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3353.296709][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.296709][ T10] ipv6_find_idev+0x102/0x170 [ 3353.296709][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.296709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.296709][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.296709][ T10] netlink_unicast+0x449/0x710 [ 3353.296709][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.296709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.296709][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.296709][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.296709][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.296709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.296709][ T10] [ 3353.298422][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3353.298422][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.298422][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.298422][ T10] ipv6_find_idev+0x102/0x170 [ 3353.298422][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.298422][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.298422][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.298422][ T10] netlink_unicast+0x449/0x710 [ 3353.298422][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.298422][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.298422][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.298422][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.298422][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.298422][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.298422][ T10] [ 3353.300681][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3353.300979][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3353.300979][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.300979][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.300979][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.300979][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.300979][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.300979][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.300979][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.300979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.300979][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.300979][ T10] netlink_unicast+0x449/0x710 [ 3353.300979][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.300979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.300979][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.300979][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.300979][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.300979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.300979][ T10] [ 3353.303173][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3353.303173][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.303173][ T10] ipv6_find_idev+0x102/0x170 [ 3353.303173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.303173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.303173][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.303173][ T10] netlink_unicast+0x449/0x710 [ 3353.303173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.303173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.303173][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.303173][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.303173][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.303173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.303173][ T10] [ 3353.304880][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3353.304880][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.304880][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.304880][ T10] ipv6_find_idev+0x102/0x170 [ 3353.304880][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.304880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.304880][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.304880][ T10] netlink_unicast+0x449/0x710 [ 3353.304880][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.304880][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.304880][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.304880][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.304880][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.304880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.304880][ T10] [ 3353.306765][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3353.307042][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3353.307042][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.307042][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.307042][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.307042][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.307042][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.307042][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.307042][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.307042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.307042][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.307042][ T10] netlink_unicast+0x449/0x710 [ 3353.307042][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.307042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.307042][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.307042][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.307042][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.307042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.307042][ T10] [ 3353.309451][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3353.309451][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.309451][ T10] ipv6_find_idev+0x102/0x170 [ 3353.309451][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.309451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.309451][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.309451][ T10] netlink_unicast+0x449/0x710 [ 3353.309451][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.309451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.309451][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.309451][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.309451][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.309451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.309451][ T10] [ 3353.311299][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3353.311299][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.311299][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.311299][ T10] ipv6_find_idev+0x102/0x170 [ 3353.311299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.311299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.311299][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.311299][ T10] netlink_unicast+0x449/0x710 [ 3353.311299][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.311299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.311299][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.311299][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.311299][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.311299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.311299][ T10] [ 3353.313322][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3353.313602][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3353.313602][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.313602][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.313602][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.313602][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.313602][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.313602][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.313602][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.313602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.313602][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.313602][ T10] netlink_unicast+0x449/0x710 [ 3353.313602][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.313602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.313602][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.313602][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.313602][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.313602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.313602][ T10] [ 3353.316050][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3353.316050][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.316050][ T10] ipv6_find_idev+0x102/0x170 [ 3353.316050][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.316050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.316050][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.316050][ T10] netlink_unicast+0x449/0x710 [ 3353.316050][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.316050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.316050][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.316050][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.316050][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.316050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.316050][ T10] [ 3353.317954][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3353.317954][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.317954][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.317954][ T10] ipv6_find_idev+0x102/0x170 [ 3353.317954][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.317954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.317954][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.317954][ T10] netlink_unicast+0x449/0x710 [ 3353.317954][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.317954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.317954][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.317954][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.317954][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.317954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.317954][ T10] [ 3353.320124][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3353.320419][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3353.320419][ T10] netdev_get_by_index+0x5e/0x80 [ 3353.320419][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3353.320419][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3353.320419][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3353.320419][ T10] ipv6_add_addr+0x411/0x2000 [ 3353.320419][ T10] inet6_addr_add+0x30e/0xa40 [ 3353.320419][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.320419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.320419][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.320419][ T10] netlink_unicast+0x449/0x710 [ 3353.320419][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.320419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.320419][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.320419][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.320419][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.320419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.320419][ T10] [ 3353.322777][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3353.322777][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3353.322777][ T10] ipv6_find_idev+0x102/0x170 [ 3353.322777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.322777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.322777][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.322777][ T10] netlink_unicast+0x449/0x710 [ 3353.322777][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.322777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.322777][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.322777][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.322777][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.322777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.322777][ T10] [ 3353.324668][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3353.324668][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3353.324668][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3353.324668][ T10] ipv6_find_idev+0x102/0x170 [ 3353.324668][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.324668][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.324668][ T10] netlink_rcv_skb+0x130/0x360 [ 3353.324668][ T10] netlink_unicast+0x449/0x710 [ 3353.324668][ T10] netlink_sendmsg+0x723/0xbe0 [ 3353.324668][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3353.324668][ T10] ___sys_sendmsg+0xee/0x170 [ 3353.324668][ T10] __sys_sendmsg+0xcd/0x170 [ 3353.324668][ T10] do_syscall_64+0xc6/0x1e0 [ 3353.324668][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.324668][ T10] [ 3363.579752][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3363.580220][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3363.580220][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.580220][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.580220][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.580220][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.580220][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.580220][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.580220][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.580220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.580220][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.580220][ T10] netlink_unicast+0x449/0x710 [ 3363.580220][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.580220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.580220][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.580220][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.580220][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.580220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.580220][ T10] [ 3363.582411][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3363.582411][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.582411][ T10] ipv6_find_idev+0x102/0x170 [ 3363.582411][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.582411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.582411][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.582411][ T10] netlink_unicast+0x449/0x710 [ 3363.582411][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.582411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.582411][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.582411][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.582411][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.582411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.582411][ T10] [ 3363.584093][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3363.584093][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.584093][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.584093][ T10] ipv6_find_idev+0x102/0x170 [ 3363.584093][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.584093][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.584093][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.584093][ T10] netlink_unicast+0x449/0x710 [ 3363.584093][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.584093][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.584093][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.584093][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.584093][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.584093][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.584093][ T10] [ 3363.585917][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3363.586220][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3363.586220][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.586220][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.586220][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.586220][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.586220][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.586220][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.586220][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.586220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.586220][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.586220][ T10] netlink_unicast+0x449/0x710 [ 3363.586220][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.586220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.586220][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.586220][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.586220][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.586220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.586220][ T10] [ 3363.588421][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3363.588421][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.588421][ T10] ipv6_find_idev+0x102/0x170 [ 3363.588421][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.588421][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.588421][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.588421][ T10] netlink_unicast+0x449/0x710 [ 3363.588421][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.588421][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.588421][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.588421][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.588421][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.588421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.588421][ T10] [ 3363.590125][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3363.590125][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.590125][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.590125][ T10] ipv6_find_idev+0x102/0x170 [ 3363.590125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.590125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.590125][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.590125][ T10] netlink_unicast+0x449/0x710 [ 3363.590125][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.590125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.590125][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.590125][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.590125][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.590125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.590125][ T10] [ 3363.591978][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3363.592260][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3363.592260][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.592260][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.592260][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.592260][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.592260][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.592260][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.592260][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.592260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.592260][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.592260][ T10] netlink_unicast+0x449/0x710 [ 3363.592260][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.592260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.592260][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.592260][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.592260][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.592260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.592260][ T10] [ 3363.594504][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3363.594504][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.594504][ T10] ipv6_find_idev+0x102/0x170 [ 3363.594504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.594504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.594504][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.594504][ T10] netlink_unicast+0x449/0x710 [ 3363.594504][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.594504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.594504][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.594504][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.594504][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.594504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.594504][ T10] [ 3363.596209][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3363.596209][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.596209][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.596209][ T10] ipv6_find_idev+0x102/0x170 [ 3363.596209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.596209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.596209][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.596209][ T10] netlink_unicast+0x449/0x710 [ 3363.596209][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.596209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.596209][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.596209][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.596209][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.596209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.596209][ T10] [ 3363.598062][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3363.598366][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3363.598366][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.598366][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.598366][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.598366][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.598366][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.598366][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.598366][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.598366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.598366][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.598366][ T10] netlink_unicast+0x449/0x710 [ 3363.598366][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.598366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.598366][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.598366][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.598366][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.598366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.598366][ T10] [ 3363.600576][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3363.600576][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.600576][ T10] ipv6_find_idev+0x102/0x170 [ 3363.600576][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.600576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.600576][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.600576][ T10] netlink_unicast+0x449/0x710 [ 3363.600576][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.600576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.600576][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.600576][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.600576][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.600576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.600576][ T10] [ 3363.602293][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3363.602293][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.602293][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.602293][ T10] ipv6_find_idev+0x102/0x170 [ 3363.602293][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.602293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.602293][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.602293][ T10] netlink_unicast+0x449/0x710 [ 3363.602293][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.602293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.602293][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.602293][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.602293][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.602293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.602293][ T10] [ 3363.604582][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3363.605215][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3363.605215][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.605215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.605215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.605215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.605215][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.605215][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.605215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.605215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.605215][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.605215][ T10] netlink_unicast+0x449/0x710 [ 3363.605215][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.605215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.605215][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.605215][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.605215][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.605215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.605215][ T10] [ 3363.607382][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3363.607382][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.607382][ T10] ipv6_find_idev+0x102/0x170 [ 3363.607382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.607382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.607382][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.607382][ T10] netlink_unicast+0x449/0x710 [ 3363.607382][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.607382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.607382][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.607382][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.607382][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.607382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.607382][ T10] [ 3363.609068][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3363.609068][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.609068][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.609068][ T10] ipv6_find_idev+0x102/0x170 [ 3363.609068][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.609068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.609068][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.609068][ T10] netlink_unicast+0x449/0x710 [ 3363.609068][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.609068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.609068][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.609068][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.609068][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.609068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.609068][ T10] [ 3363.610892][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3363.611173][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3363.611173][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.611173][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.611173][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.611173][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.611173][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.611173][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.611173][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.611173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.611173][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.611173][ T10] netlink_unicast+0x449/0x710 [ 3363.611173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.611173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.611173][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.611173][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.611173][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.611173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.611173][ T10] [ 3363.613405][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3363.613405][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.613405][ T10] ipv6_find_idev+0x102/0x170 [ 3363.613405][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.613405][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.613405][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.613405][ T10] netlink_unicast+0x449/0x710 [ 3363.613405][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.613405][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.613405][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.613405][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.613405][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.613405][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.613405][ T10] [ 3363.615208][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3363.615208][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.615208][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.615208][ T10] ipv6_find_idev+0x102/0x170 [ 3363.615208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.615208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.615208][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.615208][ T10] netlink_unicast+0x449/0x710 [ 3363.615208][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.615208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.615208][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.615208][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.615208][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.615208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.615208][ T10] [ 3363.617356][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3363.617644][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3363.617644][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.617644][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.617644][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.617644][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.617644][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.617644][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.617644][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.617644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.617644][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.617644][ T10] netlink_unicast+0x449/0x710 [ 3363.617644][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.617644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.617644][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.617644][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.617644][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.617644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.617644][ T10] [ 3363.620080][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3363.620080][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.620080][ T10] ipv6_find_idev+0x102/0x170 [ 3363.620080][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.620080][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.620080][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.620080][ T10] netlink_unicast+0x449/0x710 [ 3363.620080][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.620080][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.620080][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.620080][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.620080][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.620080][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.620080][ T10] [ 3363.621893][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3363.621893][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.621893][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.621893][ T10] ipv6_find_idev+0x102/0x170 [ 3363.621893][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.621893][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.621893][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.621893][ T10] netlink_unicast+0x449/0x710 [ 3363.621893][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.621893][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.621893][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.621893][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.621893][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.621893][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.621893][ T10] [ 3363.624013][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3363.624295][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3363.624295][ T10] netdev_get_by_index+0x5e/0x80 [ 3363.624295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3363.624295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3363.624295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3363.624295][ T10] ipv6_add_addr+0x411/0x2000 [ 3363.624295][ T10] inet6_addr_add+0x30e/0xa40 [ 3363.624295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3363.624295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.624295][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.624295][ T10] netlink_unicast+0x449/0x710 [ 3363.624295][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.624295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.624295][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.624295][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.624295][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.624295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.624295][ T10] [ 3363.626691][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3363.626691][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3363.626691][ T10] ipv6_find_idev+0x102/0x170 [ 3363.626691][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.626691][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.626691][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.626691][ T10] netlink_unicast+0x449/0x710 [ 3363.626691][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.626691][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.626691][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.626691][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.626691][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.626691][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.626691][ T10] [ 3363.628606][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3363.628606][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3363.628606][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3363.628606][ T10] ipv6_find_idev+0x102/0x170 [ 3363.628606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3363.628606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3363.628606][ T10] netlink_rcv_skb+0x130/0x360 [ 3363.628606][ T10] netlink_unicast+0x449/0x710 [ 3363.628606][ T10] netlink_sendmsg+0x723/0xbe0 [ 3363.628606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3363.628606][ T10] ___sys_sendmsg+0xee/0x170 [ 3363.628606][ T10] __sys_sendmsg+0xcd/0x170 [ 3363.628606][ T10] do_syscall_64+0xc6/0x1e0 [ 3363.628606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3363.628606][ T10] [ 3373.867760][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3373.868224][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3373.868224][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.868224][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.868224][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.868224][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.868224][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.868224][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.868224][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.868224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.868224][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.868224][ T10] netlink_unicast+0x449/0x710 [ 3373.868224][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.868224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.868224][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.868224][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.868224][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.868224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.868224][ T10] [ 3373.870457][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3373.870457][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.870457][ T10] ipv6_find_idev+0x102/0x170 [ 3373.870457][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.870457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.870457][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.870457][ T10] netlink_unicast+0x449/0x710 [ 3373.870457][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.870457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.870457][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.870457][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.870457][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.870457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.870457][ T10] [ 3373.872165][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3373.872165][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.872165][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.872165][ T10] ipv6_find_idev+0x102/0x170 [ 3373.872165][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.872165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.872165][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.872165][ T10] netlink_unicast+0x449/0x710 [ 3373.872165][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.872165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.872165][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.872165][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.872165][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.872165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.872165][ T10] [ 3373.874047][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3373.874345][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3373.874345][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.874345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.874345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.874345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.874345][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.874345][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.874345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.874345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.874345][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.874345][ T10] netlink_unicast+0x449/0x710 [ 3373.874345][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.874345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.874345][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.874345][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.874345][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.874345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.874345][ T10] [ 3373.876561][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3373.876561][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.876561][ T10] ipv6_find_idev+0x102/0x170 [ 3373.876561][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.876561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.876561][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.876561][ T10] netlink_unicast+0x449/0x710 [ 3373.876561][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.876561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.876561][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.876561][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.876561][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.876561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.876561][ T10] [ 3373.878259][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3373.878259][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.878259][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.878259][ T10] ipv6_find_idev+0x102/0x170 [ 3373.878259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.878259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.878259][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.878259][ T10] netlink_unicast+0x449/0x710 [ 3373.878259][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.878259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.878259][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.878259][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.878259][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.878259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.878259][ T10] [ 3373.880142][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3373.880427][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3373.880427][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.880427][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.880427][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.880427][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.880427][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.880427][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.880427][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.880427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.880427][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.880427][ T10] netlink_unicast+0x449/0x710 [ 3373.880427][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.880427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.880427][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.880427][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.880427][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.880427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.880427][ T10] [ 3373.882604][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3373.882604][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.882604][ T10] ipv6_find_idev+0x102/0x170 [ 3373.882604][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.882604][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.882604][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.882604][ T10] netlink_unicast+0x449/0x710 [ 3373.882604][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.882604][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.882604][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.882604][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.882604][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.882604][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.882604][ T10] [ 3373.884315][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3373.884315][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.884315][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.884315][ T10] ipv6_find_idev+0x102/0x170 [ 3373.884315][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.884315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.884315][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.884315][ T10] netlink_unicast+0x449/0x710 [ 3373.884315][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.884315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.884315][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.884315][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.884315][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.884315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.884315][ T10] [ 3373.886168][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3373.886449][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3373.886449][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.886449][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.886449][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.886449][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.886449][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.886449][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.886449][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.886449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.886449][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.886449][ T10] netlink_unicast+0x449/0x710 [ 3373.886449][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.886449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.886449][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.886449][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.886449][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.886449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.886449][ T10] [ 3373.888598][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3373.888598][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.888598][ T10] ipv6_find_idev+0x102/0x170 [ 3373.888598][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.888598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.888598][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.888598][ T10] netlink_unicast+0x449/0x710 [ 3373.888598][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.888598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.888598][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.888598][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.888598][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.888598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.888598][ T10] [ 3373.890296][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3373.890296][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.890296][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.890296][ T10] ipv6_find_idev+0x102/0x170 [ 3373.890296][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.890296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.890296][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.890296][ T10] netlink_unicast+0x449/0x710 [ 3373.890296][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.890296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.890296][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.890296][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.890296][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.890296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.890296][ T10] [ 3373.892578][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3373.893218][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3373.893218][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.893218][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.893218][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.893218][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.893218][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.893218][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.893218][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.893218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.893218][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.893218][ T10] netlink_unicast+0x449/0x710 [ 3373.893218][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.893218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.893218][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.893218][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.893218][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.893218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.893218][ T10] [ 3373.895435][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3373.895435][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.895435][ T10] ipv6_find_idev+0x102/0x170 [ 3373.895435][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.895435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.895435][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.895435][ T10] netlink_unicast+0x449/0x710 [ 3373.895435][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.895435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.895435][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.895435][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.895435][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.895435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.895435][ T10] [ 3373.897119][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3373.897119][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.897119][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.897119][ T10] ipv6_find_idev+0x102/0x170 [ 3373.897119][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.897119][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.897119][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.897119][ T10] netlink_unicast+0x449/0x710 [ 3373.897119][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.897119][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.897119][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.897119][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.897119][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.897119][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.897119][ T10] [ 3373.898927][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3373.899216][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3373.899216][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.899216][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.899216][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.899216][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.899216][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.899216][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.899216][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.899216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.899216][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.899216][ T10] netlink_unicast+0x449/0x710 [ 3373.899216][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.899216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.899216][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.899216][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.899216][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.899216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.899216][ T10] [ 3373.901373][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3373.901373][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.901373][ T10] ipv6_find_idev+0x102/0x170 [ 3373.901373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.901373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.901373][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.901373][ T10] netlink_unicast+0x449/0x710 [ 3373.901373][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.901373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.901373][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.901373][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.901373][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.901373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.901373][ T10] [ 3373.903183][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3373.903183][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.903183][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.903183][ T10] ipv6_find_idev+0x102/0x170 [ 3373.903183][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.903183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.903183][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.903183][ T10] netlink_unicast+0x449/0x710 [ 3373.903183][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.903183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.903183][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.903183][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.903183][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.903183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.903183][ T10] [ 3373.905257][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3373.905549][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3373.905549][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.905549][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.905549][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.905549][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.905549][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.905549][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.905549][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.905549][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.905549][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.905549][ T10] netlink_unicast+0x449/0x710 [ 3373.905549][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.905549][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.905549][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.905549][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.905549][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.905549][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.905549][ T10] [ 3373.907996][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3373.907996][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.907996][ T10] ipv6_find_idev+0x102/0x170 [ 3373.907996][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.907996][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.907996][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.907996][ T10] netlink_unicast+0x449/0x710 [ 3373.907996][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.907996][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.907996][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.907996][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.907996][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.907996][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.907996][ T10] [ 3373.909779][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3373.909779][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.909779][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.909779][ T10] ipv6_find_idev+0x102/0x170 [ 3373.909779][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.909779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.909779][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.909779][ T10] netlink_unicast+0x449/0x710 [ 3373.909779][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.909779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.909779][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.909779][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.909779][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.909779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.909779][ T10] [ 3373.911857][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3373.912134][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3373.912134][ T10] netdev_get_by_index+0x5e/0x80 [ 3373.912134][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3373.912134][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3373.912134][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3373.912134][ T10] ipv6_add_addr+0x411/0x2000 [ 3373.912134][ T10] inet6_addr_add+0x30e/0xa40 [ 3373.912134][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3373.912134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.912134][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.912134][ T10] netlink_unicast+0x449/0x710 [ 3373.912134][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.912134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.912134][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.912134][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.912134][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.912134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.912134][ T10] [ 3373.914533][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3373.914533][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3373.914533][ T10] ipv6_find_idev+0x102/0x170 [ 3373.914533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.914533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.914533][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.914533][ T10] netlink_unicast+0x449/0x710 [ 3373.914533][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.914533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.914533][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.914533][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.914533][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.914533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.914533][ T10] [ 3373.916380][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3373.916380][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3373.916380][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3373.916380][ T10] ipv6_find_idev+0x102/0x170 [ 3373.916380][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3373.916380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3373.916380][ T10] netlink_rcv_skb+0x130/0x360 [ 3373.916380][ T10] netlink_unicast+0x449/0x710 [ 3373.916380][ T10] netlink_sendmsg+0x723/0xbe0 [ 3373.916380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3373.916380][ T10] ___sys_sendmsg+0xee/0x170 [ 3373.916380][ T10] __sys_sendmsg+0xcd/0x170 [ 3373.916380][ T10] do_syscall_64+0xc6/0x1e0 [ 3373.916380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3373.916380][ T10] [ 3384.155750][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3384.156237][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3384.156237][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.156237][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.156237][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.156237][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.156237][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.156237][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.156237][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.156237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.156237][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.156237][ T10] netlink_unicast+0x449/0x710 [ 3384.156237][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.156237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.156237][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.156237][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.156237][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.156237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.156237][ T10] [ 3384.158540][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3384.158540][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.158540][ T10] ipv6_find_idev+0x102/0x170 [ 3384.158540][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.158540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.158540][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.158540][ T10] netlink_unicast+0x449/0x710 [ 3384.158540][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.158540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.158540][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.158540][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.158540][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.158540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.158540][ T10] [ 3384.160252][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3384.160252][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.160252][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.160252][ T10] ipv6_find_idev+0x102/0x170 [ 3384.160252][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.160252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.160252][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.160252][ T10] netlink_unicast+0x449/0x710 [ 3384.160252][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.160252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.160252][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.160252][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.160252][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.160252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.160252][ T10] [ 3384.162232][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3384.162529][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3384.162529][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.162529][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.162529][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.162529][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.162529][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.162529][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.162529][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.162529][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.162529][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.162529][ T10] netlink_unicast+0x449/0x710 [ 3384.162529][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.162529][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.162529][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.162529][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.162529][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.162529][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.162529][ T10] [ 3384.164798][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3384.164798][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.164798][ T10] ipv6_find_idev+0x102/0x170 [ 3384.164798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.164798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.164798][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.164798][ T10] netlink_unicast+0x449/0x710 [ 3384.164798][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.164798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.164798][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.164798][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.164798][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.164798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.164798][ T10] [ 3384.166530][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3384.166530][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.166530][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.166530][ T10] ipv6_find_idev+0x102/0x170 [ 3384.166530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.166530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.166530][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.166530][ T10] netlink_unicast+0x449/0x710 [ 3384.166530][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.166530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.166530][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.166530][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.166530][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.166530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.166530][ T10] [ 3384.168399][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3384.168722][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3384.168722][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.168722][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.168722][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.168722][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.168722][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.168722][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.168722][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.168722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.168722][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.168722][ T10] netlink_unicast+0x449/0x710 [ 3384.168722][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.168722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.168722][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.168722][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.168722][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.168722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.168722][ T10] [ 3384.170962][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3384.170962][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.170962][ T10] ipv6_find_idev+0x102/0x170 [ 3384.170962][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.170962][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.170962][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.170962][ T10] netlink_unicast+0x449/0x710 [ 3384.170962][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.170962][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.170962][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.170962][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.170962][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.170962][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.170962][ T10] [ 3384.172669][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3384.172669][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.172669][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.172669][ T10] ipv6_find_idev+0x102/0x170 [ 3384.172669][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.172669][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.172669][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.172669][ T10] netlink_unicast+0x449/0x710 [ 3384.172669][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.172669][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.172669][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.172669][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.172669][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.172669][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.172669][ T10] [ 3384.174603][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3384.175333][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3384.175333][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.175333][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.175333][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.175333][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.175333][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.175333][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.175333][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.175333][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.175333][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.175333][ T10] netlink_unicast+0x449/0x710 [ 3384.175333][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.175333][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.175333][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.175333][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.175333][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.175333][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.175333][ T10] [ 3384.177623][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3384.177623][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.177623][ T10] ipv6_find_idev+0x102/0x170 [ 3384.177623][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.177623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.177623][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.177623][ T10] netlink_unicast+0x449/0x710 [ 3384.177623][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.177623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.177623][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.177623][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.177623][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.177623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.177623][ T10] [ 3384.179363][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3384.179363][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.179363][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.179363][ T10] ipv6_find_idev+0x102/0x170 [ 3384.179363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.179363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.179363][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.179363][ T10] netlink_unicast+0x449/0x710 [ 3384.179363][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.179363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.179363][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.179363][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.179363][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.179363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.179363][ T10] [ 3384.181317][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3384.181659][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3384.181659][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.181659][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.181659][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.181659][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.181659][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.181659][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.181659][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.181659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.181659][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.181659][ T10] netlink_unicast+0x449/0x710 [ 3384.181659][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.181659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.181659][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.181659][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.181659][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.181659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.181659][ T10] [ 3384.183923][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3384.183923][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.183923][ T10] ipv6_find_idev+0x102/0x170 [ 3384.183923][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.183923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.183923][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.183923][ T10] netlink_unicast+0x449/0x710 [ 3384.183923][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.183923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.183923][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.183923][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.183923][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.183923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.183923][ T10] [ 3384.185704][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3384.185704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.185704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.185704][ T10] ipv6_find_idev+0x102/0x170 [ 3384.185704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.185704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.185704][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.185704][ T10] netlink_unicast+0x449/0x710 [ 3384.185704][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.185704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.185704][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.185704][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.185704][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.185704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.185704][ T10] [ 3384.187575][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3384.187919][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3384.187919][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.187919][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.187919][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.187919][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.187919][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.187919][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.187919][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.187919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.187919][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.187919][ T10] netlink_unicast+0x449/0x710 [ 3384.187919][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.187919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.187919][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.187919][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.187919][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.187919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.187919][ T10] [ 3384.190172][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3384.190172][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.190172][ T10] ipv6_find_idev+0x102/0x170 [ 3384.190172][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.190172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.190172][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.190172][ T10] netlink_unicast+0x449/0x710 [ 3384.190172][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.190172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.190172][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.190172][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.190172][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.190172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.190172][ T10] [ 3384.192128][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3384.192128][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.192128][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.192128][ T10] ipv6_find_idev+0x102/0x170 [ 3384.192128][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.192128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.192128][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.192128][ T10] netlink_unicast+0x449/0x710 [ 3384.192128][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.192128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.192128][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.192128][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.192128][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.192128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.192128][ T10] [ 3384.194340][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3384.194690][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3384.194690][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.194690][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.194690][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.194690][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.194690][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.194690][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.194690][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.194690][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.194690][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.194690][ T10] netlink_unicast+0x449/0x710 [ 3384.194690][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.194690][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.194690][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.194690][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.194690][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.194690][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.194690][ T10] [ 3384.197129][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3384.197129][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.197129][ T10] ipv6_find_idev+0x102/0x170 [ 3384.197129][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.197129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.197129][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.197129][ T10] netlink_unicast+0x449/0x710 [ 3384.197129][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.197129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.197129][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.197129][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.197129][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.197129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.197129][ T10] [ 3384.198945][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3384.198945][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.198945][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.198945][ T10] ipv6_find_idev+0x102/0x170 [ 3384.198945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.198945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.198945][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.198945][ T10] netlink_unicast+0x449/0x710 [ 3384.198945][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.198945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.198945][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.198945][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.198945][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.198945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.198945][ T10] [ 3384.201076][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3384.201402][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3384.201402][ T10] netdev_get_by_index+0x5e/0x80 [ 3384.201402][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3384.201402][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3384.201402][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3384.201402][ T10] ipv6_add_addr+0x411/0x2000 [ 3384.201402][ T10] inet6_addr_add+0x30e/0xa40 [ 3384.201402][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.201402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.201402][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.201402][ T10] netlink_unicast+0x449/0x710 [ 3384.201402][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.201402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.201402][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.201402][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.201402][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.201402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.201402][ T10] [ 3384.203803][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3384.203803][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3384.203803][ T10] ipv6_find_idev+0x102/0x170 [ 3384.203803][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.203803][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.203803][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.203803][ T10] netlink_unicast+0x449/0x710 [ 3384.203803][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.203803][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.203803][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.203803][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.203803][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.203803][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.203803][ T10] [ 3384.205737][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3384.205737][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3384.205737][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3384.205737][ T10] ipv6_find_idev+0x102/0x170 [ 3384.205737][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.205737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.205737][ T10] netlink_rcv_skb+0x130/0x360 [ 3384.205737][ T10] netlink_unicast+0x449/0x710 [ 3384.205737][ T10] netlink_sendmsg+0x723/0xbe0 [ 3384.205737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3384.205737][ T10] ___sys_sendmsg+0xee/0x170 [ 3384.205737][ T10] __sys_sendmsg+0xcd/0x170 [ 3384.205737][ T10] do_syscall_64+0xc6/0x1e0 [ 3384.205737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.205737][ T10] [ 3394.443779][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3394.444310][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3394.444310][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.444310][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.444310][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.444310][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.444310][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.444310][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.444310][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.444310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.444310][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.444310][ T10] netlink_unicast+0x449/0x710 [ 3394.444310][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.444310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.444310][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.444310][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.444310][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.444310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.444310][ T10] [ 3394.446570][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3394.446570][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.446570][ T10] ipv6_find_idev+0x102/0x170 [ 3394.446570][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.446570][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.446570][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.446570][ T10] netlink_unicast+0x449/0x710 [ 3394.446570][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.446570][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.446570][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.446570][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.446570][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.446570][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.446570][ T10] [ 3394.448368][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3394.448368][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.448368][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.448368][ T10] ipv6_find_idev+0x102/0x170 [ 3394.448368][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.448368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.448368][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.448368][ T10] netlink_unicast+0x449/0x710 [ 3394.448368][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.448368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.448368][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.448368][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.448368][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.448368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.448368][ T10] [ 3394.450274][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3394.450562][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3394.450562][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.450562][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.450562][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.450562][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.450562][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.450562][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.450562][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.450562][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.450562][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.450562][ T10] netlink_unicast+0x449/0x710 [ 3394.450562][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.450562][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.450562][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.450562][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.450562][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.450562][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.450562][ T10] [ 3394.452788][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3394.452788][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.452788][ T10] ipv6_find_idev+0x102/0x170 [ 3394.452788][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.452788][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.452788][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.452788][ T10] netlink_unicast+0x449/0x710 [ 3394.452788][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.452788][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.452788][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.452788][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.452788][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.452788][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.452788][ T10] [ 3394.454537][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3394.454537][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.454537][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.454537][ T10] ipv6_find_idev+0x102/0x170 [ 3394.454537][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.454537][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.454537][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.454537][ T10] netlink_unicast+0x449/0x710 [ 3394.454537][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.454537][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.454537][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.454537][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.454537][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.454537][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.454537][ T10] [ 3394.456442][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3394.456779][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3394.456779][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.456779][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.456779][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.456779][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.456779][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.456779][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.456779][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.456779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.456779][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.456779][ T10] netlink_unicast+0x449/0x710 [ 3394.456779][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.456779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.456779][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.456779][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.456779][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.456779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.456779][ T10] [ 3394.459053][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3394.459053][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.459053][ T10] ipv6_find_idev+0x102/0x170 [ 3394.459053][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.459053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.459053][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.459053][ T10] netlink_unicast+0x449/0x710 [ 3394.459053][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.459053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.459053][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.459053][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.459053][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.459053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.459053][ T10] [ 3394.460780][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3394.460780][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.460780][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.460780][ T10] ipv6_find_idev+0x102/0x170 [ 3394.460780][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.460780][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.460780][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.460780][ T10] netlink_unicast+0x449/0x710 [ 3394.460780][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.460780][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.460780][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.460780][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.460780][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.460780][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.460780][ T10] [ 3394.462631][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3394.463363][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3394.463363][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.463363][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.463363][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.463363][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.463363][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.463363][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.463363][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.463363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.463363][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.463363][ T10] netlink_unicast+0x449/0x710 [ 3394.463363][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.463363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.463363][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.463363][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.463363][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.463363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.463363][ T10] [ 3394.465641][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3394.465641][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.465641][ T10] ipv6_find_idev+0x102/0x170 [ 3394.465641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.465641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.465641][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.465641][ T10] netlink_unicast+0x449/0x710 [ 3394.465641][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.465641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.465641][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.465641][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.465641][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.465641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.465641][ T10] [ 3394.467351][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3394.467351][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.467351][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.467351][ T10] ipv6_find_idev+0x102/0x170 [ 3394.467351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.467351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.467351][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.467351][ T10] netlink_unicast+0x449/0x710 [ 3394.467351][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.467351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.467351][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.467351][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.467351][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.467351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.467351][ T10] [ 3394.469283][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3394.469615][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3394.469615][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.469615][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.469615][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.469615][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.469615][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.469615][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.469615][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.469615][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.469615][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.469615][ T10] netlink_unicast+0x449/0x710 [ 3394.469615][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.469615][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.469615][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.469615][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.469615][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.469615][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.469615][ T10] [ 3394.471882][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3394.471882][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.471882][ T10] ipv6_find_idev+0x102/0x170 [ 3394.471882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.471882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.471882][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.471882][ T10] netlink_unicast+0x449/0x710 [ 3394.471882][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.471882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.471882][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.471882][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.471882][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.471882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.471882][ T10] [ 3394.473618][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3394.473618][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.473618][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.473618][ T10] ipv6_find_idev+0x102/0x170 [ 3394.473618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.473618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.473618][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.473618][ T10] netlink_unicast+0x449/0x710 [ 3394.473618][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.473618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.473618][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.473618][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.473618][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.473618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.473618][ T10] [ 3394.475582][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3394.475922][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3394.475922][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.475922][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.475922][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.475922][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.475922][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.475922][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.475922][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.475922][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.475922][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.475922][ T10] netlink_unicast+0x449/0x710 [ 3394.475922][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.475922][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.475922][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.475922][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.475922][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.475922][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.475922][ T10] [ 3394.478173][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3394.478173][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.478173][ T10] ipv6_find_idev+0x102/0x170 [ 3394.478173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.478173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.478173][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.478173][ T10] netlink_unicast+0x449/0x710 [ 3394.478173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.478173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.478173][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.478173][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.478173][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.478173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.478173][ T10] [ 3394.480120][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3394.480120][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.480120][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.480120][ T10] ipv6_find_idev+0x102/0x170 [ 3394.480120][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.480120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.480120][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.480120][ T10] netlink_unicast+0x449/0x710 [ 3394.480120][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.480120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.480120][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.480120][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.480120][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.480120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.480120][ T10] [ 3394.482378][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3394.482749][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3394.482749][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.482749][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.482749][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.482749][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.482749][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.482749][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.482749][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.482749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.482749][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.482749][ T10] netlink_unicast+0x449/0x710 [ 3394.482749][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.482749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.482749][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.482749][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.482749][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.482749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.482749][ T10] [ 3394.485216][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3394.485216][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.485216][ T10] ipv6_find_idev+0x102/0x170 [ 3394.485216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.485216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.485216][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.485216][ T10] netlink_unicast+0x449/0x710 [ 3394.485216][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.485216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.485216][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.485216][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.485216][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.485216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.485216][ T10] [ 3394.487095][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3394.487095][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.487095][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.487095][ T10] ipv6_find_idev+0x102/0x170 [ 3394.487095][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.487095][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.487095][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.487095][ T10] netlink_unicast+0x449/0x710 [ 3394.487095][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.487095][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.487095][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.487095][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.487095][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.487095][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.487095][ T10] [ 3394.489160][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3394.489484][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3394.489484][ T10] netdev_get_by_index+0x5e/0x80 [ 3394.489484][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3394.489484][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3394.489484][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3394.489484][ T10] ipv6_add_addr+0x411/0x2000 [ 3394.489484][ T10] inet6_addr_add+0x30e/0xa40 [ 3394.489484][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.489484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.489484][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.489484][ T10] netlink_unicast+0x449/0x710 [ 3394.489484][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.489484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.489484][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.489484][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.489484][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.489484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.489484][ T10] [ 3394.491901][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3394.491901][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3394.491901][ T10] ipv6_find_idev+0x102/0x170 [ 3394.491901][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.491901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.491901][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.491901][ T10] netlink_unicast+0x449/0x710 [ 3394.491901][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.491901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.491901][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.491901][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.491901][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.491901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.491901][ T10] [ 3394.493759][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3394.493759][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3394.493759][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3394.493759][ T10] ipv6_find_idev+0x102/0x170 [ 3394.493759][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.493759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.493759][ T10] netlink_rcv_skb+0x130/0x360 [ 3394.493759][ T10] netlink_unicast+0x449/0x710 [ 3394.493759][ T10] netlink_sendmsg+0x723/0xbe0 [ 3394.493759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3394.493759][ T10] ___sys_sendmsg+0xee/0x170 [ 3394.493759][ T10] __sys_sendmsg+0xcd/0x170 [ 3394.493759][ T10] do_syscall_64+0xc6/0x1e0 [ 3394.493759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.493759][ T10] [ 3404.731829][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3404.732300][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3404.732300][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.732300][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.732300][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.732300][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.732300][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.732300][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.732300][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.732300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.732300][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.732300][ T10] netlink_unicast+0x449/0x710 [ 3404.732300][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.732300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.732300][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.732300][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.732300][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.732300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.732300][ T10] [ 3404.734513][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3404.734513][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.734513][ T10] ipv6_find_idev+0x102/0x170 [ 3404.734513][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.734513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.734513][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.734513][ T10] netlink_unicast+0x449/0x710 [ 3404.734513][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.734513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.734513][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.734513][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.734513][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.734513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.734513][ T10] [ 3404.736257][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3404.736257][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.736257][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.736257][ T10] ipv6_find_idev+0x102/0x170 [ 3404.736257][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.736257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.736257][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.736257][ T10] netlink_unicast+0x449/0x710 [ 3404.736257][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.736257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.736257][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.736257][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.736257][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.736257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.736257][ T10] [ 3404.738121][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3404.738446][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3404.738446][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.738446][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.738446][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.738446][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.738446][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.738446][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.738446][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.738446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.738446][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.738446][ T10] netlink_unicast+0x449/0x710 [ 3404.738446][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.738446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.738446][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.738446][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.738446][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.738446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.738446][ T10] [ 3404.740623][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3404.740623][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.740623][ T10] ipv6_find_idev+0x102/0x170 [ 3404.740623][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.740623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.740623][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.740623][ T10] netlink_unicast+0x449/0x710 [ 3404.740623][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.740623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.740623][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.740623][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.740623][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.740623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.740623][ T10] [ 3404.742321][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3404.742321][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.742321][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.742321][ T10] ipv6_find_idev+0x102/0x170 [ 3404.742321][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.742321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.742321][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.742321][ T10] netlink_unicast+0x449/0x710 [ 3404.742321][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.742321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.742321][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.742321][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.742321][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.742321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.742321][ T10] [ 3404.744142][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3404.744446][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3404.744446][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.744446][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.744446][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.744446][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.744446][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.744446][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.744446][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.744446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.744446][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.744446][ T10] netlink_unicast+0x449/0x710 [ 3404.744446][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.744446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.744446][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.744446][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.744446][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.744446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.744446][ T10] [ 3404.746688][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3404.746688][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.746688][ T10] ipv6_find_idev+0x102/0x170 [ 3404.746688][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.746688][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.746688][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.746688][ T10] netlink_unicast+0x449/0x710 [ 3404.746688][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.746688][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.746688][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.746688][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.746688][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.746688][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.746688][ T10] [ 3404.748347][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3404.748347][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.748347][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.748347][ T10] ipv6_find_idev+0x102/0x170 [ 3404.748347][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.748347][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.748347][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.748347][ T10] netlink_unicast+0x449/0x710 [ 3404.748347][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.748347][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.748347][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.748347][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.748347][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.748347][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.748347][ T10] [ 3404.750200][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3404.750488][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3404.750488][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.750488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.750488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.750488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.750488][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.750488][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.750488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.750488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.750488][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.750488][ T10] netlink_unicast+0x449/0x710 [ 3404.750488][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.750488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.750488][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.750488][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.750488][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.750488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.750488][ T10] [ 3404.752678][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3404.752678][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.752678][ T10] ipv6_find_idev+0x102/0x170 [ 3404.752678][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.752678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.752678][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.752678][ T10] netlink_unicast+0x449/0x710 [ 3404.752678][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.752678][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.752678][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.752678][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.752678][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.752678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.752678][ T10] [ 3404.754377][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3404.754377][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.754377][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.754377][ T10] ipv6_find_idev+0x102/0x170 [ 3404.754377][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.754377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.754377][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.754377][ T10] netlink_unicast+0x449/0x710 [ 3404.754377][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.754377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.754377][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.754377][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.754377][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.754377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.754377][ T10] [ 3404.756961][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3404.757257][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3404.757257][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.757257][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.757257][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.757257][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.757257][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.757257][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.757257][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.757257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.757257][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.757257][ T10] netlink_unicast+0x449/0x710 [ 3404.757257][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.757257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.757257][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.757257][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.757257][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.757257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.757257][ T10] [ 3404.759469][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3404.759469][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.759469][ T10] ipv6_find_idev+0x102/0x170 [ 3404.759469][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.759469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.759469][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.759469][ T10] netlink_unicast+0x449/0x710 [ 3404.759469][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.759469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.759469][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.759469][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.759469][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.759469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.759469][ T10] [ 3404.761142][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3404.761142][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.761142][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.761142][ T10] ipv6_find_idev+0x102/0x170 [ 3404.761142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.761142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.761142][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.761142][ T10] netlink_unicast+0x449/0x710 [ 3404.761142][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.761142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.761142][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.761142][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.761142][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.761142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.761142][ T10] [ 3404.763012][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3404.763303][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3404.763303][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.763303][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.763303][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.763303][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.763303][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.763303][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.763303][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.763303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.763303][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.763303][ T10] netlink_unicast+0x449/0x710 [ 3404.763303][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.763303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.763303][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.763303][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.763303][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.763303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.763303][ T10] [ 3404.765507][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3404.765507][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.765507][ T10] ipv6_find_idev+0x102/0x170 [ 3404.765507][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.765507][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.765507][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.765507][ T10] netlink_unicast+0x449/0x710 [ 3404.765507][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.765507][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.765507][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.765507][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.765507][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.765507][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.765507][ T10] [ 3404.767308][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3404.767308][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.767308][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.767308][ T10] ipv6_find_idev+0x102/0x170 [ 3404.767308][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.767308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.767308][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.767308][ T10] netlink_unicast+0x449/0x710 [ 3404.767308][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.767308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.767308][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.767308][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.767308][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.767308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.767308][ T10] [ 3404.769402][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3404.769744][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3404.769744][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.769744][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.769744][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.769744][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.769744][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.769744][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.769744][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.769744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.769744][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.769744][ T10] netlink_unicast+0x449/0x710 [ 3404.769744][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.769744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.769744][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.769744][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.769744][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.769744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.769744][ T10] [ 3404.772172][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3404.772172][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.772172][ T10] ipv6_find_idev+0x102/0x170 [ 3404.772172][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.772172][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.772172][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.772172][ T10] netlink_unicast+0x449/0x710 [ 3404.772172][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.772172][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.772172][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.772172][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.772172][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.772172][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.772172][ T10] [ 3404.774019][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3404.774019][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.774019][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.774019][ T10] ipv6_find_idev+0x102/0x170 [ 3404.774019][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.774019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.774019][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.774019][ T10] netlink_unicast+0x449/0x710 [ 3404.774019][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.774019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.774019][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.774019][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.774019][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.774019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.774019][ T10] [ 3404.776089][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3404.776370][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3404.776370][ T10] netdev_get_by_index+0x5e/0x80 [ 3404.776370][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3404.776370][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3404.776370][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3404.776370][ T10] ipv6_add_addr+0x411/0x2000 [ 3404.776370][ T10] inet6_addr_add+0x30e/0xa40 [ 3404.776370][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.776370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.776370][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.776370][ T10] netlink_unicast+0x449/0x710 [ 3404.776370][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.776370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.776370][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.776370][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.776370][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.776370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.776370][ T10] [ 3404.778767][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3404.778767][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3404.778767][ T10] ipv6_find_idev+0x102/0x170 [ 3404.778767][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.778767][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.778767][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.778767][ T10] netlink_unicast+0x449/0x710 [ 3404.778767][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.778767][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.778767][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.778767][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.778767][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.778767][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.778767][ T10] [ 3404.780671][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3404.780671][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3404.780671][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3404.780671][ T10] ipv6_find_idev+0x102/0x170 [ 3404.780671][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.780671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.780671][ T10] netlink_rcv_skb+0x130/0x360 [ 3404.780671][ T10] netlink_unicast+0x449/0x710 [ 3404.780671][ T10] netlink_sendmsg+0x723/0xbe0 [ 3404.780671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3404.780671][ T10] ___sys_sendmsg+0xee/0x170 [ 3404.780671][ T10] __sys_sendmsg+0xcd/0x170 [ 3404.780671][ T10] do_syscall_64+0xc6/0x1e0 [ 3404.780671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.780671][ T10] [ 3414.891748][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3414.892225][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3414.892225][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.892225][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.892225][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.892225][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.892225][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.892225][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.892225][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.892225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.892225][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.892225][ T10] netlink_unicast+0x449/0x710 [ 3414.892225][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.892225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.892225][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.892225][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.892225][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.892225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.892225][ T10] [ 3414.894459][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3414.894459][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.894459][ T10] ipv6_find_idev+0x102/0x170 [ 3414.894459][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.894459][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.894459][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.894459][ T10] netlink_unicast+0x449/0x710 [ 3414.894459][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.894459][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.894459][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.894459][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.894459][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.894459][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.894459][ T10] [ 3414.896173][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3414.896173][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.896173][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.896173][ T10] ipv6_find_idev+0x102/0x170 [ 3414.896173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.896173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.896173][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.896173][ T10] netlink_unicast+0x449/0x710 [ 3414.896173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.896173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.896173][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.896173][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.896173][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.896173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.896173][ T10] [ 3414.898039][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3414.898341][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3414.898341][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.898341][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.898341][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.898341][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.898341][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.898341][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.898341][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.898341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.898341][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.898341][ T10] netlink_unicast+0x449/0x710 [ 3414.898341][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.898341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.898341][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.898341][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.898341][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.898341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.898341][ T10] [ 3414.900535][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3414.900535][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.900535][ T10] ipv6_find_idev+0x102/0x170 [ 3414.900535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.900535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.900535][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.900535][ T10] netlink_unicast+0x449/0x710 [ 3414.900535][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.900535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.900535][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.900535][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.900535][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.900535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.900535][ T10] [ 3414.902192][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3414.902192][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.902192][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.902192][ T10] ipv6_find_idev+0x102/0x170 [ 3414.902192][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.902192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.902192][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.902192][ T10] netlink_unicast+0x449/0x710 [ 3414.902192][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.902192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.902192][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.902192][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.902192][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.902192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.902192][ T10] [ 3414.904032][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3414.904320][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3414.904320][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.904320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.904320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.904320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.904320][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.904320][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.904320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.904320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.904320][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.904320][ T10] netlink_unicast+0x449/0x710 [ 3414.904320][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.904320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.904320][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.904320][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.904320][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.904320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.904320][ T10] [ 3414.906509][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3414.906509][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.906509][ T10] ipv6_find_idev+0x102/0x170 [ 3414.906509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.906509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.906509][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.906509][ T10] netlink_unicast+0x449/0x710 [ 3414.906509][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.906509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.906509][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.906509][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.906509][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.906509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.906509][ T10] [ 3414.908167][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3414.908167][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.908167][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.908167][ T10] ipv6_find_idev+0x102/0x170 [ 3414.908167][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.908167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.908167][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.908167][ T10] netlink_unicast+0x449/0x710 [ 3414.908167][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.908167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.908167][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.908167][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.908167][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.908167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.908167][ T10] [ 3414.910010][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3414.910298][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3414.910298][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.910298][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.910298][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.910298][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.910298][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.910298][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.910298][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.910298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.910298][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.910298][ T10] netlink_unicast+0x449/0x710 [ 3414.910298][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.910298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.910298][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.910298][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.910298][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.910298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.910298][ T10] [ 3414.912460][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3414.912460][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.912460][ T10] ipv6_find_idev+0x102/0x170 [ 3414.912460][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.912460][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.912460][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.912460][ T10] netlink_unicast+0x449/0x710 [ 3414.912460][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.912460][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.912460][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.912460][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.912460][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.912460][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.912460][ T10] [ 3414.914134][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3414.914134][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.914134][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.914134][ T10] ipv6_find_idev+0x102/0x170 [ 3414.914134][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.914134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.914134][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.914134][ T10] netlink_unicast+0x449/0x710 [ 3414.914134][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.914134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.914134][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.914134][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.914134][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.914134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.914134][ T10] [ 3414.916381][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3414.916668][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3414.916668][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.916668][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.916668][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.916668][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.916668][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.916668][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.916668][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.916668][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.916668][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.916668][ T10] netlink_unicast+0x449/0x710 [ 3414.916668][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.916668][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.916668][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.916668][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.916668][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.916668][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.916668][ T10] [ 3414.918832][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3414.918832][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.918832][ T10] ipv6_find_idev+0x102/0x170 [ 3414.918832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.918832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.918832][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.918832][ T10] netlink_unicast+0x449/0x710 [ 3414.918832][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.918832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.918832][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.918832][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.918832][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.918832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.918832][ T10] [ 3414.920479][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3414.920479][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.920479][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.920479][ T10] ipv6_find_idev+0x102/0x170 [ 3414.920479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.920479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.920479][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.920479][ T10] netlink_unicast+0x449/0x710 [ 3414.920479][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.920479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.920479][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.920479][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.920479][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.920479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.920479][ T10] [ 3414.922322][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3414.922629][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3414.922629][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.922629][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.922629][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.922629][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.922629][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.922629][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.922629][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.922629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.922629][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.922629][ T10] netlink_unicast+0x449/0x710 [ 3414.922629][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.922629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.922629][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.922629][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.922629][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.922629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.922629][ T10] [ 3414.925025][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3414.925025][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.925025][ T10] ipv6_find_idev+0x102/0x170 [ 3414.925025][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.925025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.925025][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.925025][ T10] netlink_unicast+0x449/0x710 [ 3414.925025][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.925025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.925025][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.925025][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.925025][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.925025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.925025][ T10] [ 3414.926956][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3414.926956][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.926956][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.926956][ T10] ipv6_find_idev+0x102/0x170 [ 3414.926956][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.926956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.926956][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.926956][ T10] netlink_unicast+0x449/0x710 [ 3414.926956][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.926956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.926956][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.926956][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.926956][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.926956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.926956][ T10] [ 3414.929020][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3414.929330][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3414.929330][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.929330][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.929330][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.929330][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.929330][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.929330][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.929330][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.929330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.929330][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.929330][ T10] netlink_unicast+0x449/0x710 [ 3414.929330][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.929330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.929330][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.929330][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.929330][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.929330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.929330][ T10] [ 3414.931749][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3414.931749][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.931749][ T10] ipv6_find_idev+0x102/0x170 [ 3414.931749][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.931749][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.931749][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.931749][ T10] netlink_unicast+0x449/0x710 [ 3414.931749][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.931749][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.931749][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.931749][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.931749][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.931749][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.931749][ T10] [ 3414.933516][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3414.933516][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.933516][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.933516][ T10] ipv6_find_idev+0x102/0x170 [ 3414.933516][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.933516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.933516][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.933516][ T10] netlink_unicast+0x449/0x710 [ 3414.933516][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.933516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.933516][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.933516][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.933516][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.933516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.933516][ T10] [ 3414.935685][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3414.935968][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3414.935968][ T10] netdev_get_by_index+0x5e/0x80 [ 3414.935968][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3414.935968][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3414.935968][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3414.935968][ T10] ipv6_add_addr+0x411/0x2000 [ 3414.935968][ T10] inet6_addr_add+0x30e/0xa40 [ 3414.935968][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.935968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.935968][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.935968][ T10] netlink_unicast+0x449/0x710 [ 3414.935968][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.935968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.935968][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.935968][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.935968][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.935968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.935968][ T10] [ 3414.938401][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3414.938401][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3414.938401][ T10] ipv6_find_idev+0x102/0x170 [ 3414.938401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.938401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.938401][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.938401][ T10] netlink_unicast+0x449/0x710 [ 3414.938401][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.938401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.938401][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.938401][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.938401][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.938401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.938401][ T10] [ 3414.940249][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3414.940249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3414.940249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3414.940249][ T10] ipv6_find_idev+0x102/0x170 [ 3414.940249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.940249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.940249][ T10] netlink_rcv_skb+0x130/0x360 [ 3414.940249][ T10] netlink_unicast+0x449/0x710 [ 3414.940249][ T10] netlink_sendmsg+0x723/0xbe0 [ 3414.940249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3414.940249][ T10] ___sys_sendmsg+0xee/0x170 [ 3414.940249][ T10] __sys_sendmsg+0xcd/0x170 [ 3414.940249][ T10] do_syscall_64+0xc6/0x1e0 [ 3414.940249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.940249][ T10] [ 3424.979774][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3424.980237][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3424.980237][ T10] netdev_get_by_index+0x5e/0x80 [ 3424.980237][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3424.980237][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3424.980237][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3424.980237][ T10] ipv6_add_addr+0x411/0x2000 [ 3424.980237][ T10] inet6_addr_add+0x30e/0xa40 [ 3424.980237][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3424.980237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.980237][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.980237][ T10] netlink_unicast+0x449/0x710 [ 3424.980237][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.980237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.980237][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.980237][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.980237][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.980237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.980237][ T10] [ 3424.982450][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3424.982450][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3424.982450][ T10] ipv6_find_idev+0x102/0x170 [ 3424.982450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3424.982450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.982450][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.982450][ T10] netlink_unicast+0x449/0x710 [ 3424.982450][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.982450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.982450][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.982450][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.982450][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.982450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.982450][ T10] [ 3424.984131][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3424.984131][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3424.984131][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3424.984131][ T10] ipv6_find_idev+0x102/0x170 [ 3424.984131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3424.984131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.984131][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.984131][ T10] netlink_unicast+0x449/0x710 [ 3424.984131][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.984131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.984131][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.984131][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.984131][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.984131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.984131][ T10] [ 3424.985944][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3424.986221][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3424.986221][ T10] netdev_get_by_index+0x5e/0x80 [ 3424.986221][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3424.986221][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3424.986221][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3424.986221][ T10] ipv6_add_addr+0x411/0x2000 [ 3424.986221][ T10] inet6_addr_add+0x30e/0xa40 [ 3424.986221][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3424.986221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.986221][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.986221][ T10] netlink_unicast+0x449/0x710 [ 3424.986221][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.986221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.986221][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.986221][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.986221][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.986221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.986221][ T10] [ 3424.988458][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3424.988458][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3424.988458][ T10] ipv6_find_idev+0x102/0x170 [ 3424.988458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3424.988458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.988458][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.988458][ T10] netlink_unicast+0x449/0x710 [ 3424.988458][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.988458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.988458][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.988458][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.988458][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.988458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.988458][ T10] [ 3424.990140][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3424.990140][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3424.990140][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3424.990140][ T10] ipv6_find_idev+0x102/0x170 [ 3424.990140][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3424.990140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.990140][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.990140][ T10] netlink_unicast+0x449/0x710 [ 3424.990140][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.990140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.990140][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.990140][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.990140][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.990140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.990140][ T10] [ 3424.992010][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3424.992309][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3424.992309][ T10] netdev_get_by_index+0x5e/0x80 [ 3424.992309][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3424.992309][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3424.992309][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3424.992309][ T10] ipv6_add_addr+0x411/0x2000 [ 3424.992309][ T10] inet6_addr_add+0x30e/0xa40 [ 3424.992309][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3424.992309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.992309][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.992309][ T10] netlink_unicast+0x449/0x710 [ 3424.992309][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.992309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.992309][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.992309][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.992309][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.992309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.992309][ T10] [ 3424.994510][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3424.994510][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3424.994510][ T10] ipv6_find_idev+0x102/0x170 [ 3424.994510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3424.994510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.994510][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.994510][ T10] netlink_unicast+0x449/0x710 [ 3424.994510][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.994510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.994510][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.994510][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.994510][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.994510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.994510][ T10] [ 3424.996184][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3424.996184][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3424.996184][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3424.996184][ T10] ipv6_find_idev+0x102/0x170 [ 3424.996184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3424.996184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.996184][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.996184][ T10] netlink_unicast+0x449/0x710 [ 3424.996184][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.996184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.996184][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.996184][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.996184][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.996184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.996184][ T10] [ 3424.997986][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3424.998263][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3424.998263][ T10] netdev_get_by_index+0x5e/0x80 [ 3424.998263][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3424.998263][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3424.998263][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3424.998263][ T10] ipv6_add_addr+0x411/0x2000 [ 3424.998263][ T10] inet6_addr_add+0x30e/0xa40 [ 3424.998263][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3424.998263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3424.998263][ T10] netlink_rcv_skb+0x130/0x360 [ 3424.998263][ T10] netlink_unicast+0x449/0x710 [ 3424.998263][ T10] netlink_sendmsg+0x723/0xbe0 [ 3424.998263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3424.998263][ T10] ___sys_sendmsg+0xee/0x170 [ 3424.998263][ T10] __sys_sendmsg+0xcd/0x170 [ 3424.998263][ T10] do_syscall_64+0xc6/0x1e0 [ 3424.998263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3424.998263][ T10] [ 3425.000580][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3425.000580][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3425.000580][ T10] ipv6_find_idev+0x102/0x170 [ 3425.000580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.000580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.000580][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.000580][ T10] netlink_unicast+0x449/0x710 [ 3425.000580][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.000580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.000580][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.000580][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.000580][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.000580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.000580][ T10] [ 3425.002275][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3425.002275][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3425.002275][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3425.002275][ T10] ipv6_find_idev+0x102/0x170 [ 3425.002275][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.002275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.002275][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.002275][ T10] netlink_unicast+0x449/0x710 [ 3425.002275][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.002275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.002275][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.002275][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.002275][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.002275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.002275][ T10] [ 3425.004508][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3425.005134][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3425.005134][ T10] netdev_get_by_index+0x5e/0x80 [ 3425.005134][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3425.005134][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3425.005134][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3425.005134][ T10] ipv6_add_addr+0x411/0x2000 [ 3425.005134][ T10] inet6_addr_add+0x30e/0xa40 [ 3425.005134][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3425.005134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.005134][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.005134][ T10] netlink_unicast+0x449/0x710 [ 3425.005134][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.005134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.005134][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.005134][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.005134][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.005134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.005134][ T10] [ 3425.007289][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3425.007289][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3425.007289][ T10] ipv6_find_idev+0x102/0x170 [ 3425.007289][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.007289][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.007289][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.007289][ T10] netlink_unicast+0x449/0x710 [ 3425.007289][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.007289][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.007289][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.007289][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.007289][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.007289][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.007289][ T10] [ 3425.008936][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3425.008936][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3425.008936][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3425.008936][ T10] ipv6_find_idev+0x102/0x170 [ 3425.008936][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.008936][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.008936][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.008936][ T10] netlink_unicast+0x449/0x710 [ 3425.008936][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.008936][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.008936][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.008936][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.008936][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.008936][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.008936][ T10] [ 3425.010765][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3425.011052][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3425.011052][ T10] netdev_get_by_index+0x5e/0x80 [ 3425.011052][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3425.011052][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3425.011052][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3425.011052][ T10] ipv6_add_addr+0x411/0x2000 [ 3425.011052][ T10] inet6_addr_add+0x30e/0xa40 [ 3425.011052][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3425.011052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.011052][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.011052][ T10] netlink_unicast+0x449/0x710 [ 3425.011052][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.011052][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.011052][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.011052][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.011052][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.011052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.011052][ T10] [ 3425.013239][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3425.013239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3425.013239][ T10] ipv6_find_idev+0x102/0x170 [ 3425.013239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.013239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.013239][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.013239][ T10] netlink_unicast+0x449/0x710 [ 3425.013239][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.013239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.013239][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.013239][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.013239][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.013239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.013239][ T10] [ 3425.015030][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3425.015030][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3425.015030][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3425.015030][ T10] ipv6_find_idev+0x102/0x170 [ 3425.015030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.015030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.015030][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.015030][ T10] netlink_unicast+0x449/0x710 [ 3425.015030][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.015030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.015030][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.015030][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.015030][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.015030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.015030][ T10] [ 3425.017159][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3425.017442][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3425.017442][ T10] netdev_get_by_index+0x5e/0x80 [ 3425.017442][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3425.017442][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3425.017442][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3425.017442][ T10] ipv6_add_addr+0x411/0x2000 [ 3425.017442][ T10] inet6_addr_add+0x30e/0xa40 [ 3425.017442][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3425.017442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.017442][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.017442][ T10] netlink_unicast+0x449/0x710 [ 3425.017442][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.017442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.017442][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.017442][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.017442][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.017442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.017442][ T10] [ 3425.019866][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3425.019866][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3425.019866][ T10] ipv6_find_idev+0x102/0x170 [ 3425.019866][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.019866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.019866][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.019866][ T10] netlink_unicast+0x449/0x710 [ 3425.019866][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.019866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.019866][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.019866][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.019866][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.019866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.019866][ T10] [ 3425.021706][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3425.021706][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3425.021706][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3425.021706][ T10] ipv6_find_idev+0x102/0x170 [ 3425.021706][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.021706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.021706][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.021706][ T10] netlink_unicast+0x449/0x710 [ 3425.021706][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.021706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.021706][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.021706][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.021706][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.021706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.021706][ T10] [ 3425.023804][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3425.024094][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3425.024094][ T10] netdev_get_by_index+0x5e/0x80 [ 3425.024094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3425.024094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3425.024094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3425.024094][ T10] ipv6_add_addr+0x411/0x2000 [ 3425.024094][ T10] inet6_addr_add+0x30e/0xa40 [ 3425.024094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3425.024094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.024094][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.024094][ T10] netlink_unicast+0x449/0x710 [ 3425.024094][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.024094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.024094][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.024094][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.024094][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.024094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.024094][ T10] [ 3425.026477][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3425.026477][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3425.026477][ T10] ipv6_find_idev+0x102/0x170 [ 3425.026477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.026477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.026477][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.026477][ T10] netlink_unicast+0x449/0x710 [ 3425.026477][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.026477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.026477][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.026477][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.026477][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.026477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.026477][ T10] [ 3425.028368][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3425.028368][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3425.028368][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3425.028368][ T10] ipv6_find_idev+0x102/0x170 [ 3425.028368][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.028368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.028368][ T10] netlink_rcv_skb+0x130/0x360 [ 3425.028368][ T10] netlink_unicast+0x449/0x710 [ 3425.028368][ T10] netlink_sendmsg+0x723/0xbe0 [ 3425.028368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3425.028368][ T10] ___sys_sendmsg+0xee/0x170 [ 3425.028368][ T10] __sys_sendmsg+0xcd/0x170 [ 3425.028368][ T10] do_syscall_64+0xc6/0x1e0 [ 3425.028368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.028368][ T10] [ 3435.283755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3435.284252][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3435.284252][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.284252][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.284252][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.284252][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.284252][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.284252][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.284252][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.284252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.284252][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.284252][ T10] netlink_unicast+0x449/0x710 [ 3435.284252][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.284252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.284252][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.284252][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.284252][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.284252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.284252][ T10] [ 3435.286558][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3435.286558][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.286558][ T10] ipv6_find_idev+0x102/0x170 [ 3435.286558][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.286558][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.286558][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.286558][ T10] netlink_unicast+0x449/0x710 [ 3435.286558][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.286558][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.286558][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.286558][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.286558][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.286558][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.286558][ T10] [ 3435.288314][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3435.288314][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.288314][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.288314][ T10] ipv6_find_idev+0x102/0x170 [ 3435.288314][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.288314][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.288314][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.288314][ T10] netlink_unicast+0x449/0x710 [ 3435.288314][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.288314][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.288314][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.288314][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.288314][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.288314][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.288314][ T10] [ 3435.290217][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3435.290513][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3435.290513][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.290513][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.290513][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.290513][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.290513][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.290513][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.290513][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.290513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.290513][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.290513][ T10] netlink_unicast+0x449/0x710 [ 3435.290513][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.290513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.290513][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.290513][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.290513][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.290513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.290513][ T10] [ 3435.292773][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3435.292773][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.292773][ T10] ipv6_find_idev+0x102/0x170 [ 3435.292773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.292773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.292773][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.292773][ T10] netlink_unicast+0x449/0x710 [ 3435.292773][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.292773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.292773][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.292773][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.292773][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.292773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.292773][ T10] [ 3435.294516][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3435.294516][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.294516][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.294516][ T10] ipv6_find_idev+0x102/0x170 [ 3435.294516][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.294516][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.294516][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.294516][ T10] netlink_unicast+0x449/0x710 [ 3435.294516][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.294516][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.294516][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.294516][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.294516][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.294516][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.294516][ T10] [ 3435.296437][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3435.296742][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3435.296742][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.296742][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.296742][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.296742][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.296742][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.296742][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.296742][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.296742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.296742][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.296742][ T10] netlink_unicast+0x449/0x710 [ 3435.296742][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.296742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.296742][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.296742][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.296742][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.296742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.296742][ T10] [ 3435.299035][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3435.299035][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.299035][ T10] ipv6_find_idev+0x102/0x170 [ 3435.299035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.299035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.299035][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.299035][ T10] netlink_unicast+0x449/0x710 [ 3435.299035][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.299035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.299035][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.299035][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.299035][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.299035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.299035][ T10] [ 3435.300750][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3435.300750][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.300750][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.300750][ T10] ipv6_find_idev+0x102/0x170 [ 3435.300750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.300750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.300750][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.300750][ T10] netlink_unicast+0x449/0x710 [ 3435.300750][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.300750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.300750][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.300750][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.300750][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.300750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.300750][ T10] [ 3435.302712][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3435.303012][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3435.303012][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.303012][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.303012][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.303012][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.303012][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.303012][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.303012][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.303012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.303012][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.303012][ T10] netlink_unicast+0x449/0x710 [ 3435.303012][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.303012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.303012][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.303012][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.303012][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.303012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.303012][ T10] [ 3435.305263][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3435.305263][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.305263][ T10] ipv6_find_idev+0x102/0x170 [ 3435.305263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.305263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.305263][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.305263][ T10] netlink_unicast+0x449/0x710 [ 3435.305263][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.305263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.305263][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.305263][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.305263][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.305263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.305263][ T10] [ 3435.306962][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3435.306962][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.306962][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.306962][ T10] ipv6_find_idev+0x102/0x170 [ 3435.306962][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.306962][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.306962][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.306962][ T10] netlink_unicast+0x449/0x710 [ 3435.306962][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.306962][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.306962][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.306962][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.306962][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.306962][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.306962][ T10] [ 3435.308869][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3435.309206][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3435.309206][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.309206][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.309206][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.309206][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.309206][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.309206][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.309206][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.309206][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.309206][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.309206][ T10] netlink_unicast+0x449/0x710 [ 3435.309206][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.309206][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.309206][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.309206][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.309206][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.309206][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.309206][ T10] [ 3435.311497][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3435.311497][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.311497][ T10] ipv6_find_idev+0x102/0x170 [ 3435.311497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.311497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.311497][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.311497][ T10] netlink_unicast+0x449/0x710 [ 3435.311497][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.311497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.311497][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.311497][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.311497][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.311497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.311497][ T10] [ 3435.313199][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3435.313199][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.313199][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.313199][ T10] ipv6_find_idev+0x102/0x170 [ 3435.313199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.313199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.313199][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.313199][ T10] netlink_unicast+0x449/0x710 [ 3435.313199][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.313199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.313199][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.313199][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.313199][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.313199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.313199][ T10] [ 3435.315363][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3435.315707][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3435.315707][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.315707][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.315707][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.315707][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.315707][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.315707][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.315707][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.315707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.315707][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.315707][ T10] netlink_unicast+0x449/0x710 [ 3435.315707][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.315707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.315707][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.315707][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.315707][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.315707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.315707][ T10] [ 3435.318091][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3435.318091][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.318091][ T10] ipv6_find_idev+0x102/0x170 [ 3435.318091][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.318091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.318091][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.318091][ T10] netlink_unicast+0x449/0x710 [ 3435.318091][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.318091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.318091][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.318091][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.318091][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.318091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.318091][ T10] [ 3435.320019][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3435.320019][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.320019][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.320019][ T10] ipv6_find_idev+0x102/0x170 [ 3435.320019][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.320019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.320019][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.320019][ T10] netlink_unicast+0x449/0x710 [ 3435.320019][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.320019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.320019][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.320019][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.320019][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.320019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.320019][ T10] [ 3435.322151][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3435.322499][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3435.322499][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.322499][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.322499][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.322499][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.322499][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.322499][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.322499][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.322499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.322499][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.322499][ T10] netlink_unicast+0x449/0x710 [ 3435.322499][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.322499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.322499][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.322499][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.322499][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.322499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.322499][ T10] [ 3435.324908][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3435.324908][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.324908][ T10] ipv6_find_idev+0x102/0x170 [ 3435.324908][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.324908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.324908][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.324908][ T10] netlink_unicast+0x449/0x710 [ 3435.324908][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.324908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.324908][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.324908][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.324908][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.324908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.324908][ T10] [ 3435.326828][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3435.326828][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.326828][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.326828][ T10] ipv6_find_idev+0x102/0x170 [ 3435.326828][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.326828][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.326828][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.326828][ T10] netlink_unicast+0x449/0x710 [ 3435.326828][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.326828][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.326828][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.326828][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.326828][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.326828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.326828][ T10] [ 3435.328964][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3435.329293][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3435.329293][ T10] netdev_get_by_index+0x5e/0x80 [ 3435.329293][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3435.329293][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3435.329293][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3435.329293][ T10] ipv6_add_addr+0x411/0x2000 [ 3435.329293][ T10] inet6_addr_add+0x30e/0xa40 [ 3435.329293][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.329293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.329293][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.329293][ T10] netlink_unicast+0x449/0x710 [ 3435.329293][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.329293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.329293][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.329293][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.329293][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.329293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.329293][ T10] [ 3435.331802][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3435.331802][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3435.331802][ T10] ipv6_find_idev+0x102/0x170 [ 3435.331802][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.331802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.331802][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.331802][ T10] netlink_unicast+0x449/0x710 [ 3435.331802][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.331802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.331802][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.331802][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.331802][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.331802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.331802][ T10] [ 3435.333689][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3435.333689][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3435.333689][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3435.333689][ T10] ipv6_find_idev+0x102/0x170 [ 3435.333689][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.333689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.333689][ T10] netlink_rcv_skb+0x130/0x360 [ 3435.333689][ T10] netlink_unicast+0x449/0x710 [ 3435.333689][ T10] netlink_sendmsg+0x723/0xbe0 [ 3435.333689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3435.333689][ T10] ___sys_sendmsg+0xee/0x170 [ 3435.333689][ T10] __sys_sendmsg+0xcd/0x170 [ 3435.333689][ T10] do_syscall_64+0xc6/0x1e0 [ 3435.333689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.333689][ T10] [ 3441.955787][ T42] INFO: task modprobe:14797 blocked for more than 368 seconds. [ 3441.956150][ T42] Not tainted 6.8.0-virtme #1 [ 3441.956288][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3441.956493][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 3441.956781][ T42] Call Trace: [ 3441.956882][ T42] [ 3441.956954][ T42] __schedule+0x705/0x1ac0 [ 3441.957091][ T42] ? __pfx___schedule+0x10/0x10 [ 3441.957220][ T42] ? schedule+0x1a5/0x210 [ 3441.957318][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3441.957452][ T42] ? mark_lock+0x38/0x3e0 [ 3441.957547][ T42] ? do_raw_spin_lock+0x131/0x270 [ 3441.957696][ T42] ? schedule+0x1a5/0x210 [ 3441.957798][ T42] schedule+0xdf/0x210 [ 3441.957894][ T42] schedule_preempt_disabled+0x15/0x30 [ 3441.958018][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 3441.958148][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 3441.958307][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3441.958444][ T42] ? lock_acquire+0x1c1/0x220 [ 3441.958568][ T42] ? register_pernet_subsys+0x1a/0x50 [ 3441.958712][ T42] down_write+0x1c9/0x200 [ 3441.958809][ T42] ? __pfx_down_write+0x10/0x10 [ 3441.958937][ T42] ? __lock_release+0x103/0x460 [ 3441.959066][ T42] ? __create_object+0x5e/0xb0 [ 3441.959193][ T42] ? __pfx___lock_release+0x10/0x10 [ 3441.959326][ T42] register_pernet_subsys+0x1a/0x50 [ 3441.959457][ T42] tcf_register_action+0xa3/0x600 [ 3441.959588][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 3441.959761][ T42] do_one_initcall+0xc8/0x3f0 [ 3441.959890][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 3441.960021][ T42] ? __create_object+0x5e/0xb0 [ 3441.960166][ T42] ? kasan_unpoison+0x27/0x60 [ 3441.960296][ T42] do_init_module+0x233/0x740 [ 3441.960431][ T42] load_module+0x16b5/0x2350 [ 3441.960576][ T42] ? __pfx_load_module+0x10/0x10 [ 3441.960724][ T42] ? kernel_read_file+0x3d2/0x520 [ 3441.960862][ T42] ? kernel_read_file+0x300/0x520 [ 3441.960995][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 3441.961130][ T42] ? init_module_from_file+0xd2/0x130 [ 3441.961254][ T42] init_module_from_file+0xd2/0x130 [ 3441.961378][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 3441.961532][ T42] ? __lock_release+0x103/0x460 [ 3441.961671][ T42] ? idempotent_init_module+0x32a/0x620 [ 3441.961810][ T42] ? idempotent_init_module+0x32a/0x620 [ 3441.961935][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 3441.962062][ T42] idempotent_init_module+0x342/0x620 [ 3441.962192][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 3441.962366][ T42] __x64_sys_finit_module+0xbe/0x130 [ 3441.962492][ T42] do_syscall_64+0xc6/0x1e0 [ 3441.962628][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3441.962795][ T42] RIP: 0033:0x7f188f3c6e5d [ 3441.962926][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3441.963114][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 3441.963299][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 3441.963488][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 3441.963688][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 3441.963873][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 3441.964078][ T42] [ 3441.964177][ T42] [ 3441.964177][ T42] Showing all locks held in the system: [ 3441.964353][ T42] 3 locks held by kworker/u16:0/10: [ 3441.964476][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3441.964755][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3441.964984][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 3441.965207][ T42] 1 lock held by khungtaskd/42: [ 3441.965326][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 3441.965563][ T42] 2 locks held by kworker/u20:2/10034: [ 3441.965697][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3441.965948][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3441.966227][ T42] 1 lock held by modprobe/14797: [ 3441.966345][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 3441.966983][ T42] [ 3441.967046][ T42] ============================================= [ 3441.967046][ T42] [ 3445.587751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3445.588218][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3445.588218][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.588218][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.588218][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.588218][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.588218][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.588218][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.588218][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.588218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.588218][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.588218][ T10] netlink_unicast+0x449/0x710 [ 3445.588218][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.588218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.588218][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.588218][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.588218][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.588218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.588218][ T10] [ 3445.590445][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3445.590445][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.590445][ T10] ipv6_find_idev+0x102/0x170 [ 3445.590445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.590445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.590445][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.590445][ T10] netlink_unicast+0x449/0x710 [ 3445.590445][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.590445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.590445][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.590445][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.590445][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.590445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.590445][ T10] [ 3445.592125][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3445.592125][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.592125][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.592125][ T10] ipv6_find_idev+0x102/0x170 [ 3445.592125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.592125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.592125][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.592125][ T10] netlink_unicast+0x449/0x710 [ 3445.592125][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.592125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.592125][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.592125][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.592125][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.592125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.592125][ T10] [ 3445.593980][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3445.594295][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3445.594295][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.594295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.594295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.594295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.594295][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.594295][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.594295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.594295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.594295][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.594295][ T10] netlink_unicast+0x449/0x710 [ 3445.594295][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.594295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.594295][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.594295][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.594295][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.594295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.594295][ T10] [ 3445.596486][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3445.596486][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.596486][ T10] ipv6_find_idev+0x102/0x170 [ 3445.596486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.596486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.596486][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.596486][ T10] netlink_unicast+0x449/0x710 [ 3445.596486][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.596486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.596486][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.596486][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.596486][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.596486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.596486][ T10] [ 3445.598145][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3445.598145][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.598145][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.598145][ T10] ipv6_find_idev+0x102/0x170 [ 3445.598145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.598145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.598145][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.598145][ T10] netlink_unicast+0x449/0x710 [ 3445.598145][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.598145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.598145][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.598145][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.598145][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.598145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.598145][ T10] [ 3445.600003][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3445.600298][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3445.600298][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.600298][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.600298][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.600298][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.600298][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.600298][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.600298][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.600298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.600298][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.600298][ T10] netlink_unicast+0x449/0x710 [ 3445.600298][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.600298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.600298][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.600298][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.600298][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.600298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.600298][ T10] [ 3445.602499][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3445.602499][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.602499][ T10] ipv6_find_idev+0x102/0x170 [ 3445.602499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.602499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.602499][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.602499][ T10] netlink_unicast+0x449/0x710 [ 3445.602499][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.602499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.602499][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.602499][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.602499][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.602499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.602499][ T10] [ 3445.604186][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3445.604186][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.604186][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.604186][ T10] ipv6_find_idev+0x102/0x170 [ 3445.604186][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.604186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.604186][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.604186][ T10] netlink_unicast+0x449/0x710 [ 3445.604186][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.604186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.604186][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.604186][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.604186][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.604186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.604186][ T10] [ 3445.606032][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3445.606319][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3445.606319][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.606319][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.606319][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.606319][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.606319][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.606319][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.606319][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.606319][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.606319][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.606319][ T10] netlink_unicast+0x449/0x710 [ 3445.606319][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.606319][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.606319][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.606319][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.606319][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.606319][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.606319][ T10] [ 3445.608537][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3445.608537][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.608537][ T10] ipv6_find_idev+0x102/0x170 [ 3445.608537][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.608537][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.608537][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.608537][ T10] netlink_unicast+0x449/0x710 [ 3445.608537][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.608537][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.608537][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.608537][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.608537][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.608537][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.608537][ T10] [ 3445.610208][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3445.610208][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.610208][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.610208][ T10] ipv6_find_idev+0x102/0x170 [ 3445.610208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.610208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.610208][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.610208][ T10] netlink_unicast+0x449/0x710 [ 3445.610208][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.610208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.610208][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.610208][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.610208][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.610208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.610208][ T10] [ 3445.612466][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3445.613100][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3445.613100][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.613100][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.613100][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.613100][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.613100][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.613100][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.613100][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.613100][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.613100][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.613100][ T10] netlink_unicast+0x449/0x710 [ 3445.613100][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.613100][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.613100][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.613100][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.613100][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.613100][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.613100][ T10] [ 3445.615285][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3445.615285][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.615285][ T10] ipv6_find_idev+0x102/0x170 [ 3445.615285][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.615285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.615285][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.615285][ T10] netlink_unicast+0x449/0x710 [ 3445.615285][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.615285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.615285][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.615285][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.615285][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.615285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.615285][ T10] [ 3445.616978][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3445.616978][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.616978][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.616978][ T10] ipv6_find_idev+0x102/0x170 [ 3445.616978][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.616978][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.616978][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.616978][ T10] netlink_unicast+0x449/0x710 [ 3445.616978][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.616978][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.616978][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.616978][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.616978][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.616978][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.616978][ T10] [ 3445.618807][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3445.619107][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3445.619107][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.619107][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.619107][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.619107][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.619107][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.619107][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.619107][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.619107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.619107][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.619107][ T10] netlink_unicast+0x449/0x710 [ 3445.619107][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.619107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.619107][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.619107][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.619107][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.619107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.619107][ T10] [ 3445.621280][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3445.621280][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.621280][ T10] ipv6_find_idev+0x102/0x170 [ 3445.621280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.621280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.621280][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.621280][ T10] netlink_unicast+0x449/0x710 [ 3445.621280][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.621280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.621280][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.621280][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.621280][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.621280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.621280][ T10] [ 3445.623118][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3445.623118][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.623118][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.623118][ T10] ipv6_find_idev+0x102/0x170 [ 3445.623118][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.623118][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.623118][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.623118][ T10] netlink_unicast+0x449/0x710 [ 3445.623118][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.623118][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.623118][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.623118][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.623118][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.623118][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.623118][ T10] [ 3445.625183][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3445.625469][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3445.625469][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.625469][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.625469][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.625469][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.625469][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.625469][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.625469][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.625469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.625469][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.625469][ T10] netlink_unicast+0x449/0x710 [ 3445.625469][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.625469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.625469][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.625469][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.625469][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.625469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.625469][ T10] [ 3445.627974][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3445.627974][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.627974][ T10] ipv6_find_idev+0x102/0x170 [ 3445.627974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.627974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.627974][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.627974][ T10] netlink_unicast+0x449/0x710 [ 3445.627974][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.627974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.627974][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.627974][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.627974][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.627974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.627974][ T10] [ 3445.629753][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3445.629753][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.629753][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.629753][ T10] ipv6_find_idev+0x102/0x170 [ 3445.629753][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.629753][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.629753][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.629753][ T10] netlink_unicast+0x449/0x710 [ 3445.629753][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.629753][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.629753][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.629753][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.629753][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.629753][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.629753][ T10] [ 3445.631879][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3445.632165][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3445.632165][ T10] netdev_get_by_index+0x5e/0x80 [ 3445.632165][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3445.632165][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3445.632165][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3445.632165][ T10] ipv6_add_addr+0x411/0x2000 [ 3445.632165][ T10] inet6_addr_add+0x30e/0xa40 [ 3445.632165][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.632165][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.632165][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.632165][ T10] netlink_unicast+0x449/0x710 [ 3445.632165][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.632165][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.632165][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.632165][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.632165][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.632165][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.632165][ T10] [ 3445.634577][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3445.634577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3445.634577][ T10] ipv6_find_idev+0x102/0x170 [ 3445.634577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.634577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.634577][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.634577][ T10] netlink_unicast+0x449/0x710 [ 3445.634577][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.634577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.634577][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.634577][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.634577][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.634577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.634577][ T10] [ 3445.636482][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3445.636482][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3445.636482][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3445.636482][ T10] ipv6_find_idev+0x102/0x170 [ 3445.636482][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.636482][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.636482][ T10] netlink_rcv_skb+0x130/0x360 [ 3445.636482][ T10] netlink_unicast+0x449/0x710 [ 3445.636482][ T10] netlink_sendmsg+0x723/0xbe0 [ 3445.636482][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3445.636482][ T10] ___sys_sendmsg+0xee/0x170 [ 3445.636482][ T10] __sys_sendmsg+0xcd/0x170 [ 3445.636482][ T10] do_syscall_64+0xc6/0x1e0 [ 3445.636482][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.636482][ T10] [ 3455.859756][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3455.860221][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3455.860221][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.860221][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.860221][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.860221][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.860221][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.860221][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.860221][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.860221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.860221][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.860221][ T10] netlink_unicast+0x449/0x710 [ 3455.860221][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.860221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.860221][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.860221][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.860221][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.860221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.860221][ T10] [ 3455.862424][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3455.862424][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.862424][ T10] ipv6_find_idev+0x102/0x170 [ 3455.862424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.862424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.862424][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.862424][ T10] netlink_unicast+0x449/0x710 [ 3455.862424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.862424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.862424][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.862424][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.862424][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.862424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.862424][ T10] [ 3455.864183][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3455.864183][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.864183][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.864183][ T10] ipv6_find_idev+0x102/0x170 [ 3455.864183][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.864183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.864183][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.864183][ T10] netlink_unicast+0x449/0x710 [ 3455.864183][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.864183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.864183][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.864183][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.864183][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.864183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.864183][ T10] [ 3455.866095][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3455.866391][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3455.866391][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.866391][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.866391][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.866391][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.866391][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.866391][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.866391][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.866391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.866391][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.866391][ T10] netlink_unicast+0x449/0x710 [ 3455.866391][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.866391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.866391][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.866391][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.866391][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.866391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.866391][ T10] [ 3455.868612][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3455.868612][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.868612][ T10] ipv6_find_idev+0x102/0x170 [ 3455.868612][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.868612][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.868612][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.868612][ T10] netlink_unicast+0x449/0x710 [ 3455.868612][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.868612][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.868612][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.868612][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.868612][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.868612][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.868612][ T10] [ 3455.870312][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3455.870312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.870312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.870312][ T10] ipv6_find_idev+0x102/0x170 [ 3455.870312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.870312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.870312][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.870312][ T10] netlink_unicast+0x449/0x710 [ 3455.870312][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.870312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.870312][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.870312][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.870312][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.870312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.870312][ T10] [ 3455.872243][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3455.872554][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3455.872554][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.872554][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.872554][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.872554][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.872554][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.872554][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.872554][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.872554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.872554][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.872554][ T10] netlink_unicast+0x449/0x710 [ 3455.872554][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.872554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.872554][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.872554][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.872554][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.872554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.872554][ T10] [ 3455.874777][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3455.874777][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.874777][ T10] ipv6_find_idev+0x102/0x170 [ 3455.874777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.874777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.874777][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.874777][ T10] netlink_unicast+0x449/0x710 [ 3455.874777][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.874777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.874777][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.874777][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.874777][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.874777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.874777][ T10] [ 3455.876500][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3455.876500][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.876500][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.876500][ T10] ipv6_find_idev+0x102/0x170 [ 3455.876500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.876500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.876500][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.876500][ T10] netlink_unicast+0x449/0x710 [ 3455.876500][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.876500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.876500][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.876500][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.876500][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.876500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.876500][ T10] [ 3455.878384][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3455.878689][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3455.878689][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.878689][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.878689][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.878689][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.878689][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.878689][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.878689][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.878689][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.878689][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.878689][ T10] netlink_unicast+0x449/0x710 [ 3455.878689][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.878689][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.878689][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.878689][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.878689][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.878689][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.878689][ T10] [ 3455.880909][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3455.880909][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.880909][ T10] ipv6_find_idev+0x102/0x170 [ 3455.880909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.880909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.880909][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.880909][ T10] netlink_unicast+0x449/0x710 [ 3455.880909][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.880909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.880909][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.880909][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.880909][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.880909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.880909][ T10] [ 3455.882589][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3455.882589][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.882589][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.882589][ T10] ipv6_find_idev+0x102/0x170 [ 3455.882589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.882589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.882589][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.882589][ T10] netlink_unicast+0x449/0x710 [ 3455.882589][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.882589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.882589][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.882589][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.882589][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.882589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.882589][ T10] [ 3455.884860][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3455.885511][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3455.885511][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.885511][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.885511][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.885511][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.885511][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.885511][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.885511][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.885511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.885511][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.885511][ T10] netlink_unicast+0x449/0x710 [ 3455.885511][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.885511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.885511][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.885511][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.885511][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.885511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.885511][ T10] [ 3455.887748][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3455.887748][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.887748][ T10] ipv6_find_idev+0x102/0x170 [ 3455.887748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.887748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.887748][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.887748][ T10] netlink_unicast+0x449/0x710 [ 3455.887748][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.887748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.887748][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.887748][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.887748][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.887748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.887748][ T10] [ 3455.889461][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3455.889461][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.889461][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.889461][ T10] ipv6_find_idev+0x102/0x170 [ 3455.889461][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.889461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.889461][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.889461][ T10] netlink_unicast+0x449/0x710 [ 3455.889461][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.889461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.889461][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.889461][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.889461][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.889461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.889461][ T10] [ 3455.891262][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3455.891564][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3455.891564][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.891564][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.891564][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.891564][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.891564][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.891564][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.891564][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.891564][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.891564][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.891564][ T10] netlink_unicast+0x449/0x710 [ 3455.891564][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.891564][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.891564][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.891564][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.891564][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.891564][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.891564][ T10] [ 3455.893746][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3455.893746][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.893746][ T10] ipv6_find_idev+0x102/0x170 [ 3455.893746][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.893746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.893746][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.893746][ T10] netlink_unicast+0x449/0x710 [ 3455.893746][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.893746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.893746][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.893746][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.893746][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.893746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.893746][ T10] [ 3455.895586][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3455.895586][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.895586][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.895586][ T10] ipv6_find_idev+0x102/0x170 [ 3455.895586][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.895586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.895586][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.895586][ T10] netlink_unicast+0x449/0x710 [ 3455.895586][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.895586][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.895586][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.895586][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.895586][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.895586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.895586][ T10] [ 3455.897702][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3455.898039][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3455.898039][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.898039][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.898039][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.898039][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.898039][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.898039][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.898039][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.898039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.898039][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.898039][ T10] netlink_unicast+0x449/0x710 [ 3455.898039][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.898039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.898039][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.898039][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.898039][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.898039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.898039][ T10] [ 3455.900445][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3455.900445][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.900445][ T10] ipv6_find_idev+0x102/0x170 [ 3455.900445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.900445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.900445][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.900445][ T10] netlink_unicast+0x449/0x710 [ 3455.900445][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.900445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.900445][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.900445][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.900445][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.900445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.900445][ T10] [ 3455.902384][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3455.902384][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.902384][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.902384][ T10] ipv6_find_idev+0x102/0x170 [ 3455.902384][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.902384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.902384][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.902384][ T10] netlink_unicast+0x449/0x710 [ 3455.902384][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.902384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.902384][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.902384][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.902384][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.902384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.902384][ T10] [ 3455.904700][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3455.905035][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3455.905035][ T10] netdev_get_by_index+0x5e/0x80 [ 3455.905035][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3455.905035][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3455.905035][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3455.905035][ T10] ipv6_add_addr+0x411/0x2000 [ 3455.905035][ T10] inet6_addr_add+0x30e/0xa40 [ 3455.905035][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.905035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.905035][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.905035][ T10] netlink_unicast+0x449/0x710 [ 3455.905035][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.905035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.905035][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.905035][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.905035][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.905035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.905035][ T10] [ 3455.907421][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3455.907421][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3455.907421][ T10] ipv6_find_idev+0x102/0x170 [ 3455.907421][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.907421][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.907421][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.907421][ T10] netlink_unicast+0x449/0x710 [ 3455.907421][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.907421][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.907421][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.907421][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.907421][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.907421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.907421][ T10] [ 3455.909329][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3455.909329][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3455.909329][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3455.909329][ T10] ipv6_find_idev+0x102/0x170 [ 3455.909329][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.909329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.909329][ T10] netlink_rcv_skb+0x130/0x360 [ 3455.909329][ T10] netlink_unicast+0x449/0x710 [ 3455.909329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3455.909329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3455.909329][ T10] ___sys_sendmsg+0xee/0x170 [ 3455.909329][ T10] __sys_sendmsg+0xcd/0x170 [ 3455.909329][ T10] do_syscall_64+0xc6/0x1e0 [ 3455.909329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.909329][ T10] [ 3466.067769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3466.068257][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3466.068257][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.068257][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.068257][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.068257][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.068257][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.068257][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.068257][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.068257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.068257][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.068257][ T10] netlink_unicast+0x449/0x710 [ 3466.068257][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.068257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.068257][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.068257][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.068257][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.068257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.068257][ T10] [ 3466.070464][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3466.070464][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.070464][ T10] ipv6_find_idev+0x102/0x170 [ 3466.070464][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.070464][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.070464][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.070464][ T10] netlink_unicast+0x449/0x710 [ 3466.070464][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.070464][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.070464][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.070464][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.070464][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.070464][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.070464][ T10] [ 3466.072153][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3466.072153][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.072153][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.072153][ T10] ipv6_find_idev+0x102/0x170 [ 3466.072153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.072153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.072153][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.072153][ T10] netlink_unicast+0x449/0x710 [ 3466.072153][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.072153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.072153][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.072153][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.072153][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.072153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.072153][ T10] [ 3466.074003][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3466.074309][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3466.074309][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.074309][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.074309][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.074309][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.074309][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.074309][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.074309][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.074309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.074309][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.074309][ T10] netlink_unicast+0x449/0x710 [ 3466.074309][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.074309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.074309][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.074309][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.074309][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.074309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.074309][ T10] [ 3466.076512][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3466.076512][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.076512][ T10] ipv6_find_idev+0x102/0x170 [ 3466.076512][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.076512][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.076512][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.076512][ T10] netlink_unicast+0x449/0x710 [ 3466.076512][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.076512][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.076512][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.076512][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.076512][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.076512][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.076512][ T10] [ 3466.078194][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3466.078194][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.078194][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.078194][ T10] ipv6_find_idev+0x102/0x170 [ 3466.078194][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.078194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.078194][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.078194][ T10] netlink_unicast+0x449/0x710 [ 3466.078194][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.078194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.078194][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.078194][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.078194][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.078194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.078194][ T10] [ 3466.080006][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3466.080280][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3466.080280][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.080280][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.080280][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.080280][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.080280][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.080280][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.080280][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.080280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.080280][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.080280][ T10] netlink_unicast+0x449/0x710 [ 3466.080280][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.080280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.080280][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.080280][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.080280][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.080280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.080280][ T10] [ 3466.082466][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3466.082466][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.082466][ T10] ipv6_find_idev+0x102/0x170 [ 3466.082466][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.082466][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.082466][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.082466][ T10] netlink_unicast+0x449/0x710 [ 3466.082466][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.082466][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.082466][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.082466][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.082466][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.082466][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.082466][ T10] [ 3466.084181][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3466.084181][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.084181][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.084181][ T10] ipv6_find_idev+0x102/0x170 [ 3466.084181][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.084181][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.084181][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.084181][ T10] netlink_unicast+0x449/0x710 [ 3466.084181][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.084181][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.084181][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.084181][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.084181][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.084181][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.084181][ T10] [ 3466.086030][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3466.086315][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3466.086315][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.086315][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.086315][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.086315][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.086315][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.086315][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.086315][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.086315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.086315][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.086315][ T10] netlink_unicast+0x449/0x710 [ 3466.086315][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.086315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.086315][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.086315][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.086315][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.086315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.086315][ T10] [ 3466.088465][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3466.088465][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.088465][ T10] ipv6_find_idev+0x102/0x170 [ 3466.088465][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.088465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.088465][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.088465][ T10] netlink_unicast+0x449/0x710 [ 3466.088465][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.088465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.088465][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.088465][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.088465][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.088465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.088465][ T10] [ 3466.090149][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3466.090149][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.090149][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.090149][ T10] ipv6_find_idev+0x102/0x170 [ 3466.090149][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.090149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.090149][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.090149][ T10] netlink_unicast+0x449/0x710 [ 3466.090149][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.090149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.090149][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.090149][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.090149][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.090149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.090149][ T10] [ 3466.092009][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3466.092295][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3466.092295][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.092295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.092295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.092295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.092295][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.092295][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.092295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.092295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.092295][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.092295][ T10] netlink_unicast+0x449/0x710 [ 3466.092295][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.092295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.092295][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.092295][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.092295][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.092295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.092295][ T10] [ 3466.094497][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3466.094497][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.094497][ T10] ipv6_find_idev+0x102/0x170 [ 3466.094497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.094497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.094497][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.094497][ T10] netlink_unicast+0x449/0x710 [ 3466.094497][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.094497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.094497][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.094497][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.094497][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.094497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.094497][ T10] [ 3466.096278][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3466.096278][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.096278][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.096278][ T10] ipv6_find_idev+0x102/0x170 [ 3466.096278][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.096278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.096278][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.096278][ T10] netlink_unicast+0x449/0x710 [ 3466.096278][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.096278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.096278][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.096278][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.096278][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.096278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.096278][ T10] [ 3466.098415][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3466.098758][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3466.098758][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.098758][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.098758][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.098758][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.098758][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.098758][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.098758][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.098758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.098758][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.098758][ T10] netlink_unicast+0x449/0x710 [ 3466.098758][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.098758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.098758][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.098758][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.098758][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.098758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.098758][ T10] [ 3466.101073][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3466.101073][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.101073][ T10] ipv6_find_idev+0x102/0x170 [ 3466.101073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.101073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.101073][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.101073][ T10] netlink_unicast+0x449/0x710 [ 3466.101073][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.101073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.101073][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.101073][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.101073][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.101073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.101073][ T10] [ 3466.102942][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3466.102942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.102942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.102942][ T10] ipv6_find_idev+0x102/0x170 [ 3466.102942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.102942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.102942][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.102942][ T10] netlink_unicast+0x449/0x710 [ 3466.102942][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.102942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.102942][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.102942][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.102942][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.102942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.102942][ T10] [ 3466.105029][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3466.105322][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3466.105322][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.105322][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.105322][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.105322][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.105322][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.105322][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.105322][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.105322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.105322][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.105322][ T10] netlink_unicast+0x449/0x710 [ 3466.105322][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.105322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.105322][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.105322][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.105322][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.105322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.105322][ T10] [ 3466.107705][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3466.107705][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.107705][ T10] ipv6_find_idev+0x102/0x170 [ 3466.107705][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.107705][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.107705][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.107705][ T10] netlink_unicast+0x449/0x710 [ 3466.107705][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.107705][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.107705][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.107705][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.107705][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.107705][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.107705][ T10] [ 3466.109634][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3466.109634][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.109634][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.109634][ T10] ipv6_find_idev+0x102/0x170 [ 3466.109634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.109634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.109634][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.109634][ T10] netlink_unicast+0x449/0x710 [ 3466.109634][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.109634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.109634][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.109634][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.109634][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.109634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.109634][ T10] [ 3466.111707][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3466.111993][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3466.111993][ T10] netdev_get_by_index+0x5e/0x80 [ 3466.111993][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3466.111993][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3466.111993][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3466.111993][ T10] ipv6_add_addr+0x411/0x2000 [ 3466.111993][ T10] inet6_addr_add+0x30e/0xa40 [ 3466.111993][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.111993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.111993][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.111993][ T10] netlink_unicast+0x449/0x710 [ 3466.111993][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.111993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.111993][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.111993][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.111993][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.111993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.111993][ T10] [ 3466.114445][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3466.114445][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3466.114445][ T10] ipv6_find_idev+0x102/0x170 [ 3466.114445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.114445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.114445][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.114445][ T10] netlink_unicast+0x449/0x710 [ 3466.114445][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.114445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.114445][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.114445][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.114445][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.114445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.114445][ T10] [ 3466.116425][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3466.116425][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3466.116425][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3466.116425][ T10] ipv6_find_idev+0x102/0x170 [ 3466.116425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.116425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.116425][ T10] netlink_rcv_skb+0x130/0x360 [ 3466.116425][ T10] netlink_unicast+0x449/0x710 [ 3466.116425][ T10] netlink_sendmsg+0x723/0xbe0 [ 3466.116425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3466.116425][ T10] ___sys_sendmsg+0xee/0x170 [ 3466.116425][ T10] __sys_sendmsg+0xcd/0x170 [ 3466.116425][ T10] do_syscall_64+0xc6/0x1e0 [ 3466.116425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.116425][ T10] [ 3476.355828][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3476.356329][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3476.356329][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.356329][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.356329][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.356329][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.356329][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.356329][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.356329][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.356329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.356329][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.356329][ T10] netlink_unicast+0x449/0x710 [ 3476.356329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.356329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.356329][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.356329][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.356329][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.356329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.356329][ T10] [ 3476.358362][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3476.358362][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.358362][ T10] ipv6_find_idev+0x102/0x170 [ 3476.358362][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.358362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.358362][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.358362][ T10] netlink_unicast+0x449/0x710 [ 3476.358362][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.358362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.358362][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.358362][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.358362][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.358362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.358362][ T10] [ 3476.359912][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3476.359912][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.359912][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.359912][ T10] ipv6_find_idev+0x102/0x170 [ 3476.359912][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.359912][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.359912][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.359912][ T10] netlink_unicast+0x449/0x710 [ 3476.359912][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.359912][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.359912][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.359912][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.359912][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.359912][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.359912][ T10] [ 3476.362117][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3476.362403][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3476.362403][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.362403][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.362403][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.362403][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.362403][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.362403][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.362403][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.362403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.362403][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.362403][ T10] netlink_unicast+0x449/0x710 [ 3476.362403][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.362403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.362403][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.362403][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.362403][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.362403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.362403][ T10] [ 3476.364435][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3476.364435][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.364435][ T10] ipv6_find_idev+0x102/0x170 [ 3476.364435][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.364435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.364435][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.364435][ T10] netlink_unicast+0x449/0x710 [ 3476.364435][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.364435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.364435][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.364435][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.364435][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.364435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.364435][ T10] [ 3476.365980][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3476.365980][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.365980][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.365980][ T10] ipv6_find_idev+0x102/0x170 [ 3476.365980][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.365980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.365980][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.365980][ T10] netlink_unicast+0x449/0x710 [ 3476.365980][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.365980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.365980][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.365980][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.365980][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.365980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.365980][ T10] [ 3476.367657][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3476.367937][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3476.367937][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.367937][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.367937][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.367937][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.367937][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.367937][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.367937][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.367937][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.367937][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.367937][ T10] netlink_unicast+0x449/0x710 [ 3476.367937][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.367937][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.367937][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.367937][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.367937][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.367937][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.367937][ T10] [ 3476.369941][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3476.369941][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.369941][ T10] ipv6_find_idev+0x102/0x170 [ 3476.369941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.369941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.369941][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.369941][ T10] netlink_unicast+0x449/0x710 [ 3476.369941][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.369941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.369941][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.369941][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.369941][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.369941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.369941][ T10] [ 3476.371477][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3476.371477][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.371477][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.371477][ T10] ipv6_find_idev+0x102/0x170 [ 3476.371477][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.371477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.371477][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.371477][ T10] netlink_unicast+0x449/0x710 [ 3476.371477][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.371477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.371477][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.371477][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.371477][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.371477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.371477][ T10] [ 3476.373163][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3476.373424][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3476.373424][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.373424][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.373424][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.373424][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.373424][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.373424][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.373424][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.373424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.373424][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.373424][ T10] netlink_unicast+0x449/0x710 [ 3476.373424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.373424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.373424][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.373424][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.373424][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.373424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.373424][ T10] [ 3476.375438][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3476.375438][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.375438][ T10] ipv6_find_idev+0x102/0x170 [ 3476.375438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.375438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.375438][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.375438][ T10] netlink_unicast+0x449/0x710 [ 3476.375438][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.375438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.375438][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.375438][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.375438][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.375438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.375438][ T10] [ 3476.376972][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3476.376972][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.376972][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.376972][ T10] ipv6_find_idev+0x102/0x170 [ 3476.376972][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.376972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.376972][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.376972][ T10] netlink_unicast+0x449/0x710 [ 3476.376972][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.376972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.376972][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.376972][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.376972][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.376972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.376972][ T10] [ 3476.378663][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3476.378930][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3476.378930][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.378930][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.378930][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.378930][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.378930][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.378930][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.378930][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.378930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.378930][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.378930][ T10] netlink_unicast+0x449/0x710 [ 3476.378930][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.378930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.378930][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.378930][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.378930][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.378930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.378930][ T10] [ 3476.380938][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3476.380938][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.380938][ T10] ipv6_find_idev+0x102/0x170 [ 3476.380938][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.380938][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.380938][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.380938][ T10] netlink_unicast+0x449/0x710 [ 3476.380938][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.380938][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.380938][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.380938][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.380938][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.380938][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.380938][ T10] [ 3476.382540][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3476.382540][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.382540][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.382540][ T10] ipv6_find_idev+0x102/0x170 [ 3476.382540][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.382540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.382540][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.382540][ T10] netlink_unicast+0x449/0x710 [ 3476.382540][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.382540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.382540][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.382540][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.382540][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.382540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.382540][ T10] [ 3476.384583][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3476.384901][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3476.384901][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.384901][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.384901][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.384901][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.384901][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.384901][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.384901][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.384901][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.384901][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.384901][ T10] netlink_unicast+0x449/0x710 [ 3476.384901][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.384901][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.384901][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.384901][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.384901][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.384901][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.384901][ T10] [ 3476.387071][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3476.387071][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.387071][ T10] ipv6_find_idev+0x102/0x170 [ 3476.387071][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.387071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.387071][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.387071][ T10] netlink_unicast+0x449/0x710 [ 3476.387071][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.387071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.387071][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.387071][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.387071][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.387071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.387071][ T10] [ 3476.388774][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3476.388774][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.388774][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.388774][ T10] ipv6_find_idev+0x102/0x170 [ 3476.388774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.388774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.388774][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.388774][ T10] netlink_unicast+0x449/0x710 [ 3476.388774][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.388774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.388774][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.388774][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.388774][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.388774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.388774][ T10] [ 3476.390690][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3476.390960][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3476.390960][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.390960][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.390960][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.390960][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.390960][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.390960][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.390960][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.390960][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.390960][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.390960][ T10] netlink_unicast+0x449/0x710 [ 3476.390960][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.390960][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.390960][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.390960][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.390960][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.390960][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.390960][ T10] [ 3476.393216][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3476.393216][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.393216][ T10] ipv6_find_idev+0x102/0x170 [ 3476.393216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.393216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.393216][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.393216][ T10] netlink_unicast+0x449/0x710 [ 3476.393216][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.393216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.393216][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.393216][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.393216][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.393216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.393216][ T10] [ 3476.395049][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3476.395049][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.395049][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.395049][ T10] ipv6_find_idev+0x102/0x170 [ 3476.395049][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.395049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.395049][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.395049][ T10] netlink_unicast+0x449/0x710 [ 3476.395049][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.395049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.395049][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.395049][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.395049][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.395049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.395049][ T10] [ 3476.396970][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3476.397236][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3476.397236][ T10] netdev_get_by_index+0x5e/0x80 [ 3476.397236][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3476.397236][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3476.397236][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3476.397236][ T10] ipv6_add_addr+0x411/0x2000 [ 3476.397236][ T10] inet6_addr_add+0x30e/0xa40 [ 3476.397236][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.397236][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.397236][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.397236][ T10] netlink_unicast+0x449/0x710 [ 3476.397236][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.397236][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.397236][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.397236][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.397236][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.397236][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.397236][ T10] [ 3476.399463][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3476.399463][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3476.399463][ T10] ipv6_find_idev+0x102/0x170 [ 3476.399463][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.399463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.399463][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.399463][ T10] netlink_unicast+0x449/0x710 [ 3476.399463][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.399463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.399463][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.399463][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.399463][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.399463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.399463][ T10] [ 3476.401107][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3476.401107][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3476.401107][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3476.401107][ T10] ipv6_find_idev+0x102/0x170 [ 3476.401107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.401107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.401107][ T10] netlink_rcv_skb+0x130/0x360 [ 3476.401107][ T10] netlink_unicast+0x449/0x710 [ 3476.401107][ T10] netlink_sendmsg+0x723/0xbe0 [ 3476.401107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3476.401107][ T10] ___sys_sendmsg+0xee/0x170 [ 3476.401107][ T10] __sys_sendmsg+0xcd/0x170 [ 3476.401107][ T10] do_syscall_64+0xc6/0x1e0 [ 3476.401107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.401107][ T10] [ 3486.435754][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3486.436247][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3486.436247][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.436247][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.436247][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.436247][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.436247][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.436247][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.436247][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.436247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.436247][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.436247][ T10] netlink_unicast+0x449/0x710 [ 3486.436247][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.436247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.436247][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.436247][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.436247][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.436247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.436247][ T10] [ 3486.438465][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3486.438465][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.438465][ T10] ipv6_find_idev+0x102/0x170 [ 3486.438465][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.438465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.438465][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.438465][ T10] netlink_unicast+0x449/0x710 [ 3486.438465][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.438465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.438465][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.438465][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.438465][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.438465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.438465][ T10] [ 3486.440185][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3486.440185][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.440185][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.440185][ T10] ipv6_find_idev+0x102/0x170 [ 3486.440185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.440185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.440185][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.440185][ T10] netlink_unicast+0x449/0x710 [ 3486.440185][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.440185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.440185][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.440185][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.440185][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.440185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.440185][ T10] [ 3486.442042][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3486.442328][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3486.442328][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.442328][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.442328][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.442328][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.442328][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.442328][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.442328][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.442328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.442328][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.442328][ T10] netlink_unicast+0x449/0x710 [ 3486.442328][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.442328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.442328][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.442328][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.442328][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.442328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.442328][ T10] [ 3486.444513][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3486.444513][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.444513][ T10] ipv6_find_idev+0x102/0x170 [ 3486.444513][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.444513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.444513][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.444513][ T10] netlink_unicast+0x449/0x710 [ 3486.444513][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.444513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.444513][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.444513][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.444513][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.444513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.444513][ T10] [ 3486.446162][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3486.446162][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.446162][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.446162][ T10] ipv6_find_idev+0x102/0x170 [ 3486.446162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.446162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.446162][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.446162][ T10] netlink_unicast+0x449/0x710 [ 3486.446162][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.446162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.446162][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.446162][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.446162][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.446162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.446162][ T10] [ 3486.447986][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3486.448284][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3486.448284][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.448284][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.448284][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.448284][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.448284][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.448284][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.448284][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.448284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.448284][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.448284][ T10] netlink_unicast+0x449/0x710 [ 3486.448284][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.448284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.448284][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.448284][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.448284][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.448284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.448284][ T10] [ 3486.450490][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3486.450490][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.450490][ T10] ipv6_find_idev+0x102/0x170 [ 3486.450490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.450490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.450490][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.450490][ T10] netlink_unicast+0x449/0x710 [ 3486.450490][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.450490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.450490][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.450490][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.450490][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.450490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.450490][ T10] [ 3486.452177][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3486.452177][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.452177][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.452177][ T10] ipv6_find_idev+0x102/0x170 [ 3486.452177][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.452177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.452177][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.452177][ T10] netlink_unicast+0x449/0x710 [ 3486.452177][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.452177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.452177][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.452177][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.452177][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.452177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.452177][ T10] [ 3486.454027][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3486.454314][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3486.454314][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.454314][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.454314][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.454314][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.454314][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.454314][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.454314][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.454314][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.454314][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.454314][ T10] netlink_unicast+0x449/0x710 [ 3486.454314][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.454314][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.454314][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.454314][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.454314][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.454314][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.454314][ T10] [ 3486.456499][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3486.456499][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.456499][ T10] ipv6_find_idev+0x102/0x170 [ 3486.456499][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.456499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.456499][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.456499][ T10] netlink_unicast+0x449/0x710 [ 3486.456499][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.456499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.456499][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.456499][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.456499][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.456499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.456499][ T10] [ 3486.458204][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3486.458204][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.458204][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.458204][ T10] ipv6_find_idev+0x102/0x170 [ 3486.458204][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.458204][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.458204][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.458204][ T10] netlink_unicast+0x449/0x710 [ 3486.458204][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.458204][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.458204][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.458204][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.458204][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.458204][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.458204][ T10] [ 3486.460493][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3486.461113][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3486.461113][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.461113][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.461113][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.461113][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.461113][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.461113][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.461113][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.461113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.461113][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.461113][ T10] netlink_unicast+0x449/0x710 [ 3486.461113][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.461113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.461113][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.461113][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.461113][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.461113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.461113][ T10] [ 3486.463293][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3486.463293][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.463293][ T10] ipv6_find_idev+0x102/0x170 [ 3486.463293][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.463293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.463293][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.463293][ T10] netlink_unicast+0x449/0x710 [ 3486.463293][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.463293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.463293][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.463293][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.463293][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.463293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.463293][ T10] [ 3486.465003][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3486.465003][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.465003][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.465003][ T10] ipv6_find_idev+0x102/0x170 [ 3486.465003][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.465003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.465003][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.465003][ T10] netlink_unicast+0x449/0x710 [ 3486.465003][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.465003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.465003][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.465003][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.465003][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.465003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.465003][ T10] [ 3486.466823][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3486.467105][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3486.467105][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.467105][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.467105][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.467105][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.467105][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.467105][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.467105][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.467105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.467105][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.467105][ T10] netlink_unicast+0x449/0x710 [ 3486.467105][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.467105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.467105][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.467105][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.467105][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.467105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.467105][ T10] [ 3486.469323][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3486.469323][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.469323][ T10] ipv6_find_idev+0x102/0x170 [ 3486.469323][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.469323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.469323][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.469323][ T10] netlink_unicast+0x449/0x710 [ 3486.469323][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.469323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.469323][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.469323][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.469323][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.469323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.469323][ T10] [ 3486.471007][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3486.471007][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.471007][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.471007][ T10] ipv6_find_idev+0x102/0x170 [ 3486.471007][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.471007][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.471007][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.471007][ T10] netlink_unicast+0x449/0x710 [ 3486.471007][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.471007][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.471007][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.471007][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.471007][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.471007][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.471007][ T10] [ 3486.473140][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3486.473420][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3486.473420][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.473420][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.473420][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.473420][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.473420][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.473420][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.473420][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.473420][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.473420][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.473420][ T10] netlink_unicast+0x449/0x710 [ 3486.473420][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.473420][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.473420][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.473420][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.473420][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.473420][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.473420][ T10] [ 3486.475861][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3486.475861][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.475861][ T10] ipv6_find_idev+0x102/0x170 [ 3486.475861][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.475861][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.475861][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.475861][ T10] netlink_unicast+0x449/0x710 [ 3486.475861][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.475861][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.475861][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.475861][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.475861][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.475861][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.475861][ T10] [ 3486.477684][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3486.477684][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.477684][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.477684][ T10] ipv6_find_idev+0x102/0x170 [ 3486.477684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.477684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.477684][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.477684][ T10] netlink_unicast+0x449/0x710 [ 3486.477684][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.477684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.477684][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.477684][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.477684][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.477684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.477684][ T10] [ 3486.479735][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3486.480013][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3486.480013][ T10] netdev_get_by_index+0x5e/0x80 [ 3486.480013][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3486.480013][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3486.480013][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3486.480013][ T10] ipv6_add_addr+0x411/0x2000 [ 3486.480013][ T10] inet6_addr_add+0x30e/0xa40 [ 3486.480013][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.480013][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.480013][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.480013][ T10] netlink_unicast+0x449/0x710 [ 3486.480013][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.480013][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.480013][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.480013][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.480013][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.480013][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.480013][ T10] [ 3486.482410][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3486.482410][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3486.482410][ T10] ipv6_find_idev+0x102/0x170 [ 3486.482410][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.482410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.482410][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.482410][ T10] netlink_unicast+0x449/0x710 [ 3486.482410][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.482410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.482410][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.482410][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.482410][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.482410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.482410][ T10] [ 3486.484353][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3486.484353][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3486.484353][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3486.484353][ T10] ipv6_find_idev+0x102/0x170 [ 3486.484353][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.484353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.484353][ T10] netlink_rcv_skb+0x130/0x360 [ 3486.484353][ T10] netlink_unicast+0x449/0x710 [ 3486.484353][ T10] netlink_sendmsg+0x723/0xbe0 [ 3486.484353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3486.484353][ T10] ___sys_sendmsg+0xee/0x170 [ 3486.484353][ T10] __sys_sendmsg+0xcd/0x170 [ 3486.484353][ T10] do_syscall_64+0xc6/0x1e0 [ 3486.484353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.484353][ T10] [ 3496.539774][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3496.540254][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3496.540254][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.540254][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.540254][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.540254][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.540254][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.540254][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.540254][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.540254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.540254][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.540254][ T10] netlink_unicast+0x449/0x710 [ 3496.540254][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.540254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.540254][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.540254][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.540254][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.540254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.540254][ T10] [ 3496.542683][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3496.542683][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.542683][ T10] ipv6_find_idev+0x102/0x170 [ 3496.542683][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.542683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.542683][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.542683][ T10] netlink_unicast+0x449/0x710 [ 3496.542683][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.542683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.542683][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.542683][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.542683][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.542683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.542683][ T10] [ 3496.544382][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3496.544382][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.544382][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.544382][ T10] ipv6_find_idev+0x102/0x170 [ 3496.544382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.544382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.544382][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.544382][ T10] netlink_unicast+0x449/0x710 [ 3496.544382][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.544382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.544382][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.544382][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.544382][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.544382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.544382][ T10] [ 3496.546218][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3496.546521][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3496.546521][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.546521][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.546521][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.546521][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.546521][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.546521][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.546521][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.546521][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.546521][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.546521][ T10] netlink_unicast+0x449/0x710 [ 3496.546521][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.546521][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.546521][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.546521][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.546521][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.546521][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.546521][ T10] [ 3496.548732][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3496.548732][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.548732][ T10] ipv6_find_idev+0x102/0x170 [ 3496.548732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.548732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.548732][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.548732][ T10] netlink_unicast+0x449/0x710 [ 3496.548732][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.548732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.548732][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.548732][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.548732][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.548732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.548732][ T10] [ 3496.550430][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3496.550430][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.550430][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.550430][ T10] ipv6_find_idev+0x102/0x170 [ 3496.550430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.550430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.550430][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.550430][ T10] netlink_unicast+0x449/0x710 [ 3496.550430][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.550430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.550430][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.550430][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.550430][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.550430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.550430][ T10] [ 3496.552303][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3496.552598][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3496.552598][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.552598][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.552598][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.552598][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.552598][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.552598][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.552598][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.552598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.552598][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.552598][ T10] netlink_unicast+0x449/0x710 [ 3496.552598][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.552598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.552598][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.552598][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.552598][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.552598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.552598][ T10] [ 3496.554841][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3496.554841][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.554841][ T10] ipv6_find_idev+0x102/0x170 [ 3496.554841][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.554841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.554841][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.554841][ T10] netlink_unicast+0x449/0x710 [ 3496.554841][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.554841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.554841][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.554841][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.554841][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.554841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.554841][ T10] [ 3496.556515][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3496.556515][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.556515][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.556515][ T10] ipv6_find_idev+0x102/0x170 [ 3496.556515][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.556515][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.556515][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.556515][ T10] netlink_unicast+0x449/0x710 [ 3496.556515][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.556515][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.556515][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.556515][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.556515][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.556515][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.556515][ T10] [ 3496.558324][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3496.558630][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3496.558630][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.558630][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.558630][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.558630][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.558630][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.558630][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.558630][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.558630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.558630][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.558630][ T10] netlink_unicast+0x449/0x710 [ 3496.558630][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.558630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.558630][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.558630][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.558630][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.558630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.558630][ T10] [ 3496.560823][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3496.560823][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.560823][ T10] ipv6_find_idev+0x102/0x170 [ 3496.560823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.560823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.560823][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.560823][ T10] netlink_unicast+0x449/0x710 [ 3496.560823][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.560823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.560823][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.560823][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.560823][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.560823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.560823][ T10] [ 3496.562473][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3496.562473][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.562473][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.562473][ T10] ipv6_find_idev+0x102/0x170 [ 3496.562473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.562473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.562473][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.562473][ T10] netlink_unicast+0x449/0x710 [ 3496.562473][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.562473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.562473][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.562473][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.562473][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.562473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.562473][ T10] [ 3496.564727][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3496.565017][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3496.565017][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.565017][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.565017][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.565017][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.565017][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.565017][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.565017][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.565017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.565017][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.565017][ T10] netlink_unicast+0x449/0x710 [ 3496.565017][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.565017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.565017][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.565017][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.565017][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.565017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.565017][ T10] [ 3496.567219][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3496.567219][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.567219][ T10] ipv6_find_idev+0x102/0x170 [ 3496.567219][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.567219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.567219][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.567219][ T10] netlink_unicast+0x449/0x710 [ 3496.567219][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.567219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.567219][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.567219][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.567219][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.567219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.567219][ T10] [ 3496.568913][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3496.568913][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.568913][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.568913][ T10] ipv6_find_idev+0x102/0x170 [ 3496.568913][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.568913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.568913][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.568913][ T10] netlink_unicast+0x449/0x710 [ 3496.568913][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.568913][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.568913][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.568913][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.568913][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.568913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.568913][ T10] [ 3496.570766][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3496.571044][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3496.571044][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.571044][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.571044][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.571044][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.571044][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.571044][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.571044][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.571044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.571044][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.571044][ T10] netlink_unicast+0x449/0x710 [ 3496.571044][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.571044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.571044][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.571044][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.571044][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.571044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.571044][ T10] [ 3496.573305][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3496.573305][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.573305][ T10] ipv6_find_idev+0x102/0x170 [ 3496.573305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.573305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.573305][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.573305][ T10] netlink_unicast+0x449/0x710 [ 3496.573305][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.573305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.573305][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.573305][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.573305][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.573305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.573305][ T10] [ 3496.575224][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3496.575224][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.575224][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.575224][ T10] ipv6_find_idev+0x102/0x170 [ 3496.575224][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.575224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.575224][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.575224][ T10] netlink_unicast+0x449/0x710 [ 3496.575224][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.575224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.575224][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.575224][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.575224][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.575224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.575224][ T10] [ 3496.577340][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3496.577624][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3496.577624][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.577624][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.577624][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.577624][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.577624][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.577624][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.577624][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.577624][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.577624][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.577624][ T10] netlink_unicast+0x449/0x710 [ 3496.577624][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.577624][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.577624][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.577624][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.577624][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.577624][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.577624][ T10] [ 3496.580055][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3496.580055][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.580055][ T10] ipv6_find_idev+0x102/0x170 [ 3496.580055][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.580055][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.580055][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.580055][ T10] netlink_unicast+0x449/0x710 [ 3496.580055][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.580055][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.580055][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.580055][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.580055][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.580055][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.580055][ T10] [ 3496.581950][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3496.581950][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.581950][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.581950][ T10] ipv6_find_idev+0x102/0x170 [ 3496.581950][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.581950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.581950][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.581950][ T10] netlink_unicast+0x449/0x710 [ 3496.581950][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.581950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.581950][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.581950][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.581950][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.581950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.581950][ T10] [ 3496.584024][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3496.584305][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3496.584305][ T10] netdev_get_by_index+0x5e/0x80 [ 3496.584305][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3496.584305][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3496.584305][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3496.584305][ T10] ipv6_add_addr+0x411/0x2000 [ 3496.584305][ T10] inet6_addr_add+0x30e/0xa40 [ 3496.584305][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.584305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.584305][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.584305][ T10] netlink_unicast+0x449/0x710 [ 3496.584305][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.584305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.584305][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.584305][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.584305][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.584305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.584305][ T10] [ 3496.586789][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3496.586789][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3496.586789][ T10] ipv6_find_idev+0x102/0x170 [ 3496.586789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.586789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.586789][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.586789][ T10] netlink_unicast+0x449/0x710 [ 3496.586789][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.586789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.586789][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.586789][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.586789][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.586789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.586789][ T10] [ 3496.588623][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3496.588623][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3496.588623][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3496.588623][ T10] ipv6_find_idev+0x102/0x170 [ 3496.588623][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.588623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.588623][ T10] netlink_rcv_skb+0x130/0x360 [ 3496.588623][ T10] netlink_unicast+0x449/0x710 [ 3496.588623][ T10] netlink_sendmsg+0x723/0xbe0 [ 3496.588623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3496.588623][ T10] ___sys_sendmsg+0xee/0x170 [ 3496.588623][ T10] __sys_sendmsg+0xcd/0x170 [ 3496.588623][ T10] do_syscall_64+0xc6/0x1e0 [ 3496.588623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.588623][ T10] [ 3506.723784][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3506.724275][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3506.724275][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.724275][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.724275][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.724275][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.724275][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.724275][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.724275][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.724275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.724275][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.724275][ T10] netlink_unicast+0x449/0x710 [ 3506.724275][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.724275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.724275][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.724275][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.724275][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.724275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.724275][ T10] [ 3506.726305][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3506.726305][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.726305][ T10] ipv6_find_idev+0x102/0x170 [ 3506.726305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.726305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.726305][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.726305][ T10] netlink_unicast+0x449/0x710 [ 3506.726305][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.726305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.726305][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.726305][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.726305][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.726305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.726305][ T10] [ 3506.727867][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3506.727867][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.727867][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.727867][ T10] ipv6_find_idev+0x102/0x170 [ 3506.727867][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.727867][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.727867][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.727867][ T10] netlink_unicast+0x449/0x710 [ 3506.727867][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.727867][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.727867][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.727867][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.727867][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.727867][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.727867][ T10] [ 3506.729565][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3506.729858][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3506.729858][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.729858][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.729858][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.729858][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.729858][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.729858][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.729858][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.729858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.729858][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.729858][ T10] netlink_unicast+0x449/0x710 [ 3506.729858][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.729858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.729858][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.729858][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.729858][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.729858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.729858][ T10] [ 3506.731848][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3506.731848][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.731848][ T10] ipv6_find_idev+0x102/0x170 [ 3506.731848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.731848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.731848][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.731848][ T10] netlink_unicast+0x449/0x710 [ 3506.731848][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.731848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.731848][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.731848][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.731848][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.731848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.731848][ T10] [ 3506.733387][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3506.733387][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.733387][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.733387][ T10] ipv6_find_idev+0x102/0x170 [ 3506.733387][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.733387][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.733387][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.733387][ T10] netlink_unicast+0x449/0x710 [ 3506.733387][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.733387][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.733387][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.733387][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.733387][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.733387][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.733387][ T10] [ 3506.735090][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3506.735355][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3506.735355][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.735355][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.735355][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.735355][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.735355][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.735355][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.735355][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.735355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.735355][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.735355][ T10] netlink_unicast+0x449/0x710 [ 3506.735355][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.735355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.735355][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.735355][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.735355][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.735355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.735355][ T10] [ 3506.737366][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3506.737366][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.737366][ T10] ipv6_find_idev+0x102/0x170 [ 3506.737366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.737366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.737366][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.737366][ T10] netlink_unicast+0x449/0x710 [ 3506.737366][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.737366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.737366][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.737366][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.737366][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.737366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.737366][ T10] [ 3506.738916][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3506.738916][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.738916][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.738916][ T10] ipv6_find_idev+0x102/0x170 [ 3506.738916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.738916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.738916][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.738916][ T10] netlink_unicast+0x449/0x710 [ 3506.738916][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.738916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.738916][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.738916][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.738916][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.738916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.738916][ T10] [ 3506.740602][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3506.741321][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3506.741321][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.741321][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.741321][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.741321][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.741321][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.741321][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.741321][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.741321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.741321][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.741321][ T10] netlink_unicast+0x449/0x710 [ 3506.741321][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.741321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.741321][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.741321][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.741321][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.741321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.741321][ T10] [ 3506.743305][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3506.743305][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.743305][ T10] ipv6_find_idev+0x102/0x170 [ 3506.743305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.743305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.743305][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.743305][ T10] netlink_unicast+0x449/0x710 [ 3506.743305][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.743305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.743305][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.743305][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.743305][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.743305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.743305][ T10] [ 3506.744842][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3506.744842][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.744842][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.744842][ T10] ipv6_find_idev+0x102/0x170 [ 3506.744842][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.744842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.744842][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.744842][ T10] netlink_unicast+0x449/0x710 [ 3506.744842][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.744842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.744842][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.744842][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.744842][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.744842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.744842][ T10] [ 3506.746562][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3506.746892][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3506.746892][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.746892][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.746892][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.746892][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.746892][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.746892][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.746892][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.746892][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.746892][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.746892][ T10] netlink_unicast+0x449/0x710 [ 3506.746892][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.746892][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.746892][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.746892][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.746892][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.746892][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.746892][ T10] [ 3506.748891][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3506.748891][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.748891][ T10] ipv6_find_idev+0x102/0x170 [ 3506.748891][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.748891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.748891][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.748891][ T10] netlink_unicast+0x449/0x710 [ 3506.748891][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.748891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.748891][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.748891][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.748891][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.748891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.748891][ T10] [ 3506.750424][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3506.750424][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.750424][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.750424][ T10] ipv6_find_idev+0x102/0x170 [ 3506.750424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.750424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.750424][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.750424][ T10] netlink_unicast+0x449/0x710 [ 3506.750424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.750424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.750424][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.750424][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.750424][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.750424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.750424][ T10] [ 3506.752156][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3506.752431][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3506.752431][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.752431][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.752431][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.752431][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.752431][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.752431][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.752431][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.752431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.752431][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.752431][ T10] netlink_unicast+0x449/0x710 [ 3506.752431][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.752431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.752431][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.752431][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.752431][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.752431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.752431][ T10] [ 3506.754488][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3506.754488][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.754488][ T10] ipv6_find_idev+0x102/0x170 [ 3506.754488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.754488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.754488][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.754488][ T10] netlink_unicast+0x449/0x710 [ 3506.754488][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.754488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.754488][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.754488][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.754488][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.754488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.754488][ T10] [ 3506.756262][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3506.756262][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.756262][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.756262][ T10] ipv6_find_idev+0x102/0x170 [ 3506.756262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.756262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.756262][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.756262][ T10] netlink_unicast+0x449/0x710 [ 3506.756262][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.756262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.756262][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.756262][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.756262][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.756262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.756262][ T10] [ 3506.758201][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3506.758475][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3506.758475][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.758475][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.758475][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.758475][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.758475][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.758475][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.758475][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.758475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.758475][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.758475][ T10] netlink_unicast+0x449/0x710 [ 3506.758475][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.758475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.758475][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.758475][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.758475][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.758475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.758475][ T10] [ 3506.760632][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3506.760632][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.760632][ T10] ipv6_find_idev+0x102/0x170 [ 3506.760632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.760632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.760632][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.760632][ T10] netlink_unicast+0x449/0x710 [ 3506.760632][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.760632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.760632][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.760632][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.760632][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.760632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.760632][ T10] [ 3506.762344][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3506.762344][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.762344][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.762344][ T10] ipv6_find_idev+0x102/0x170 [ 3506.762344][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.762344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.762344][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.762344][ T10] netlink_unicast+0x449/0x710 [ 3506.762344][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.762344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.762344][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.762344][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.762344][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.762344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.762344][ T10] [ 3506.764260][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3506.764576][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3506.764576][ T10] netdev_get_by_index+0x5e/0x80 [ 3506.764576][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3506.764576][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3506.764576][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3506.764576][ T10] ipv6_add_addr+0x411/0x2000 [ 3506.764576][ T10] inet6_addr_add+0x30e/0xa40 [ 3506.764576][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3506.764576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.764576][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.764576][ T10] netlink_unicast+0x449/0x710 [ 3506.764576][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.764576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.764576][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.764576][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.764576][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.764576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.764576][ T10] [ 3506.766797][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3506.766797][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3506.766797][ T10] ipv6_find_idev+0x102/0x170 [ 3506.766797][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.766797][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.766797][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.766797][ T10] netlink_unicast+0x449/0x710 [ 3506.766797][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.766797][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.766797][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.766797][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.766797][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.766797][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.766797][ T10] [ 3506.768504][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3506.768504][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3506.768504][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3506.768504][ T10] ipv6_find_idev+0x102/0x170 [ 3506.768504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3506.768504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3506.768504][ T10] netlink_rcv_skb+0x130/0x360 [ 3506.768504][ T10] netlink_unicast+0x449/0x710 [ 3506.768504][ T10] netlink_sendmsg+0x723/0xbe0 [ 3506.768504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3506.768504][ T10] ___sys_sendmsg+0xee/0x170 [ 3506.768504][ T10] __sys_sendmsg+0xcd/0x170 [ 3506.768504][ T10] do_syscall_64+0xc6/0x1e0 [ 3506.768504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3506.768504][ T10] [ 3517.011765][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3517.012260][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3517.012260][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.012260][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.012260][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.012260][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.012260][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.012260][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.012260][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.012260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.012260][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.012260][ T10] netlink_unicast+0x449/0x710 [ 3517.012260][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.012260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.012260][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.012260][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.012260][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.012260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.012260][ T10] [ 3517.014310][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3517.014310][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.014310][ T10] ipv6_find_idev+0x102/0x170 [ 3517.014310][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.014310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.014310][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.014310][ T10] netlink_unicast+0x449/0x710 [ 3517.014310][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.014310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.014310][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.014310][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.014310][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.014310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.014310][ T10] [ 3517.015865][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3517.015865][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.015865][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.015865][ T10] ipv6_find_idev+0x102/0x170 [ 3517.015865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.015865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.015865][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.015865][ T10] netlink_unicast+0x449/0x710 [ 3517.015865][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.015865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.015865][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.015865][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.015865][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.015865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.015865][ T10] [ 3517.017566][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3517.017855][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3517.017855][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.017855][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.017855][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.017855][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.017855][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.017855][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.017855][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.017855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.017855][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.017855][ T10] netlink_unicast+0x449/0x710 [ 3517.017855][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.017855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.017855][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.017855][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.017855][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.017855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.017855][ T10] [ 3517.019864][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3517.019864][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.019864][ T10] ipv6_find_idev+0x102/0x170 [ 3517.019864][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.019864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.019864][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.019864][ T10] netlink_unicast+0x449/0x710 [ 3517.019864][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.019864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.019864][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.019864][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.019864][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.019864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.019864][ T10] [ 3517.021408][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3517.021408][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.021408][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.021408][ T10] ipv6_find_idev+0x102/0x170 [ 3517.021408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.021408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.021408][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.021408][ T10] netlink_unicast+0x449/0x710 [ 3517.021408][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.021408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.021408][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.021408][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.021408][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.021408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.021408][ T10] [ 3517.023094][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3517.023382][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3517.023382][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.023382][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.023382][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.023382][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.023382][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.023382][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.023382][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.023382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.023382][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.023382][ T10] netlink_unicast+0x449/0x710 [ 3517.023382][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.023382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.023382][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.023382][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.023382][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.023382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.023382][ T10] [ 3517.025381][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3517.025381][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.025381][ T10] ipv6_find_idev+0x102/0x170 [ 3517.025381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.025381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.025381][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.025381][ T10] netlink_unicast+0x449/0x710 [ 3517.025381][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.025381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.025381][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.025381][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.025381][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.025381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.025381][ T10] [ 3517.026913][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3517.026913][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.026913][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.026913][ T10] ipv6_find_idev+0x102/0x170 [ 3517.026913][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.026913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.026913][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.026913][ T10] netlink_unicast+0x449/0x710 [ 3517.026913][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.026913][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.026913][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.026913][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.026913][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.026913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.026913][ T10] [ 3517.028611][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3517.029324][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3517.029324][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.029324][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.029324][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.029324][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.029324][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.029324][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.029324][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.029324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.029324][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.029324][ T10] netlink_unicast+0x449/0x710 [ 3517.029324][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.029324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.029324][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.029324][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.029324][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.029324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.029324][ T10] [ 3517.031304][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3517.031304][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.031304][ T10] ipv6_find_idev+0x102/0x170 [ 3517.031304][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.031304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.031304][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.031304][ T10] netlink_unicast+0x449/0x710 [ 3517.031304][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.031304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.031304][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.031304][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.031304][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.031304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.031304][ T10] [ 3517.032830][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3517.032830][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.032830][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.032830][ T10] ipv6_find_idev+0x102/0x170 [ 3517.032830][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.032830][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.032830][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.032830][ T10] netlink_unicast+0x449/0x710 [ 3517.032830][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.032830][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.032830][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.032830][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.032830][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.032830][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.032830][ T10] [ 3517.034558][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3517.034877][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3517.034877][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.034877][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.034877][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.034877][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.034877][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.034877][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.034877][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.034877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.034877][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.034877][ T10] netlink_unicast+0x449/0x710 [ 3517.034877][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.034877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.034877][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.034877][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.034877][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.034877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.034877][ T10] [ 3517.036865][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3517.036865][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.036865][ T10] ipv6_find_idev+0x102/0x170 [ 3517.036865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.036865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.036865][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.036865][ T10] netlink_unicast+0x449/0x710 [ 3517.036865][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.036865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.036865][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.036865][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.036865][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.036865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.036865][ T10] [ 3517.038401][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3517.038401][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.038401][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.038401][ T10] ipv6_find_idev+0x102/0x170 [ 3517.038401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.038401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.038401][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.038401][ T10] netlink_unicast+0x449/0x710 [ 3517.038401][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.038401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.038401][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.038401][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.038401][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.038401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.038401][ T10] [ 3517.040119][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3517.040383][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3517.040383][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.040383][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.040383][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.040383][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.040383][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.040383][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.040383][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.040383][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.040383][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.040383][ T10] netlink_unicast+0x449/0x710 [ 3517.040383][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.040383][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.040383][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.040383][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.040383][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.040383][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.040383][ T10] [ 3517.042432][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3517.042432][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.042432][ T10] ipv6_find_idev+0x102/0x170 [ 3517.042432][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.042432][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.042432][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.042432][ T10] netlink_unicast+0x449/0x710 [ 3517.042432][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.042432][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.042432][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.042432][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.042432][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.042432][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.042432][ T10] [ 3517.044142][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3517.044142][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.044142][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.044142][ T10] ipv6_find_idev+0x102/0x170 [ 3517.044142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.044142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.044142][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.044142][ T10] netlink_unicast+0x449/0x710 [ 3517.044142][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.044142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.044142][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.044142][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.044142][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.044142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.044142][ T10] [ 3517.046163][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3517.046490][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3517.046490][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.046490][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.046490][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.046490][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.046490][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.046490][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.046490][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.046490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.046490][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.046490][ T10] netlink_unicast+0x449/0x710 [ 3517.046490][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.046490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.046490][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.046490][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.046490][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.046490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.046490][ T10] [ 3517.048653][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3517.048653][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.048653][ T10] ipv6_find_idev+0x102/0x170 [ 3517.048653][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.048653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.048653][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.048653][ T10] netlink_unicast+0x449/0x710 [ 3517.048653][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.048653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.048653][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.048653][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.048653][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.048653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.048653][ T10] [ 3517.050363][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3517.050363][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.050363][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.050363][ T10] ipv6_find_idev+0x102/0x170 [ 3517.050363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.050363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.050363][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.050363][ T10] netlink_unicast+0x449/0x710 [ 3517.050363][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.050363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.050363][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.050363][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.050363][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.050363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.050363][ T10] [ 3517.052246][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3517.052512][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3517.052512][ T10] netdev_get_by_index+0x5e/0x80 [ 3517.052512][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3517.052512][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3517.052512][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3517.052512][ T10] ipv6_add_addr+0x411/0x2000 [ 3517.052512][ T10] inet6_addr_add+0x30e/0xa40 [ 3517.052512][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.052512][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.052512][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.052512][ T10] netlink_unicast+0x449/0x710 [ 3517.052512][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.052512][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.052512][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.052512][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.052512][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.052512][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.052512][ T10] [ 3517.054680][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3517.054680][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3517.054680][ T10] ipv6_find_idev+0x102/0x170 [ 3517.054680][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.054680][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.054680][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.054680][ T10] netlink_unicast+0x449/0x710 [ 3517.054680][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.054680][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.054680][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.054680][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.054680][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.054680][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.054680][ T10] [ 3517.056456][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3517.056456][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3517.056456][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3517.056456][ T10] ipv6_find_idev+0x102/0x170 [ 3517.056456][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.056456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.056456][ T10] netlink_rcv_skb+0x130/0x360 [ 3517.056456][ T10] netlink_unicast+0x449/0x710 [ 3517.056456][ T10] netlink_sendmsg+0x723/0xbe0 [ 3517.056456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3517.056456][ T10] ___sys_sendmsg+0xee/0x170 [ 3517.056456][ T10] __sys_sendmsg+0xcd/0x170 [ 3517.056456][ T10] do_syscall_64+0xc6/0x1e0 [ 3517.056456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.056456][ T10] [ 3527.299750][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3527.300231][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3527.300231][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.300231][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.300231][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.300231][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.300231][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.300231][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.300231][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.300231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.300231][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.300231][ T10] netlink_unicast+0x449/0x710 [ 3527.300231][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.300231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.300231][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.300231][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.300231][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.300231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.300231][ T10] [ 3527.302450][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3527.302450][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.302450][ T10] ipv6_find_idev+0x102/0x170 [ 3527.302450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.302450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.302450][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.302450][ T10] netlink_unicast+0x449/0x710 [ 3527.302450][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.302450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.302450][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.302450][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.302450][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.302450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.302450][ T10] [ 3527.304170][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3527.304170][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.304170][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.304170][ T10] ipv6_find_idev+0x102/0x170 [ 3527.304170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.304170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.304170][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.304170][ T10] netlink_unicast+0x449/0x710 [ 3527.304170][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.304170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.304170][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.304170][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.304170][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.304170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.304170][ T10] [ 3527.306040][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3527.306348][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3527.306348][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.306348][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.306348][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.306348][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.306348][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.306348][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.306348][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.306348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.306348][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.306348][ T10] netlink_unicast+0x449/0x710 [ 3527.306348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.306348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.306348][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.306348][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.306348][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.306348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.306348][ T10] [ 3527.308564][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3527.308564][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.308564][ T10] ipv6_find_idev+0x102/0x170 [ 3527.308564][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.308564][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.308564][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.308564][ T10] netlink_unicast+0x449/0x710 [ 3527.308564][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.308564][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.308564][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.308564][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.308564][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.308564][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.308564][ T10] [ 3527.310260][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3527.310260][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.310260][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.310260][ T10] ipv6_find_idev+0x102/0x170 [ 3527.310260][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.310260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.310260][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.310260][ T10] netlink_unicast+0x449/0x710 [ 3527.310260][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.310260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.310260][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.310260][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.310260][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.310260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.310260][ T10] [ 3527.312076][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3527.312357][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3527.312357][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.312357][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.312357][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.312357][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.312357][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.312357][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.312357][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.312357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.312357][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.312357][ T10] netlink_unicast+0x449/0x710 [ 3527.312357][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.312357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.312357][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.312357][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.312357][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.312357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.312357][ T10] [ 3527.314599][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3527.314599][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.314599][ T10] ipv6_find_idev+0x102/0x170 [ 3527.314599][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.314599][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.314599][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.314599][ T10] netlink_unicast+0x449/0x710 [ 3527.314599][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.314599][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.314599][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.314599][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.314599][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.314599][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.314599][ T10] [ 3527.316296][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3527.316296][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.316296][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.316296][ T10] ipv6_find_idev+0x102/0x170 [ 3527.316296][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.316296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.316296][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.316296][ T10] netlink_unicast+0x449/0x710 [ 3527.316296][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.316296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.316296][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.316296][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.316296][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.316296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.316296][ T10] [ 3527.318200][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3527.318481][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3527.318481][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.318481][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.318481][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.318481][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.318481][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.318481][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.318481][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.318481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.318481][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.318481][ T10] netlink_unicast+0x449/0x710 [ 3527.318481][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.318481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.318481][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.318481][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.318481][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.318481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.318481][ T10] [ 3527.320658][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3527.320658][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.320658][ T10] ipv6_find_idev+0x102/0x170 [ 3527.320658][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.320658][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.320658][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.320658][ T10] netlink_unicast+0x449/0x710 [ 3527.320658][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.320658][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.320658][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.320658][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.320658][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.320658][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.320658][ T10] [ 3527.322306][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3527.322306][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.322306][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.322306][ T10] ipv6_find_idev+0x102/0x170 [ 3527.322306][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.322306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.322306][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.322306][ T10] netlink_unicast+0x449/0x710 [ 3527.322306][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.322306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.322306][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.322306][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.322306][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.322306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.322306][ T10] [ 3527.324148][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3527.324440][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3527.324440][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.324440][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.324440][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.324440][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.324440][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.324440][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.324440][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.324440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.324440][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.324440][ T10] netlink_unicast+0x449/0x710 [ 3527.324440][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.324440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.324440][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.324440][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.324440][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.324440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.324440][ T10] [ 3527.326621][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3527.326621][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.326621][ T10] ipv6_find_idev+0x102/0x170 [ 3527.326621][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.326621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.326621][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.326621][ T10] netlink_unicast+0x449/0x710 [ 3527.326621][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.326621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.326621][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.326621][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.326621][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.326621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.326621][ T10] [ 3527.328422][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3527.328422][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.328422][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.328422][ T10] ipv6_find_idev+0x102/0x170 [ 3527.328422][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.328422][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.328422][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.328422][ T10] netlink_unicast+0x449/0x710 [ 3527.328422][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.328422][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.328422][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.328422][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.328422][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.328422][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.328422][ T10] [ 3527.330442][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3527.330776][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3527.330776][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.330776][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.330776][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.330776][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.330776][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.330776][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.330776][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.330776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.330776][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.330776][ T10] netlink_unicast+0x449/0x710 [ 3527.330776][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.330776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.330776][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.330776][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.330776][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.330776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.330776][ T10] [ 3527.333219][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3527.333219][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.333219][ T10] ipv6_find_idev+0x102/0x170 [ 3527.333219][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.333219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.333219][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.333219][ T10] netlink_unicast+0x449/0x710 [ 3527.333219][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.333219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.333219][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.333219][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.333219][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.333219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.333219][ T10] [ 3527.335090][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3527.335090][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.335090][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.335090][ T10] ipv6_find_idev+0x102/0x170 [ 3527.335090][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.335090][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.335090][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.335090][ T10] netlink_unicast+0x449/0x710 [ 3527.335090][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.335090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.335090][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.335090][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.335090][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.335090][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.335090][ T10] [ 3527.337152][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3527.337430][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3527.337430][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.337430][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.337430][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.337430][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.337430][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.337430][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.337430][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.337430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.337430][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.337430][ T10] netlink_unicast+0x449/0x710 [ 3527.337430][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.337430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.337430][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.337430][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.337430][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.337430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.337430][ T10] [ 3527.339854][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3527.339854][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.339854][ T10] ipv6_find_idev+0x102/0x170 [ 3527.339854][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.339854][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.339854][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.339854][ T10] netlink_unicast+0x449/0x710 [ 3527.339854][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.339854][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.339854][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.339854][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.339854][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.339854][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.339854][ T10] [ 3527.341675][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3527.341675][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.341675][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.341675][ T10] ipv6_find_idev+0x102/0x170 [ 3527.341675][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.341675][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.341675][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.341675][ T10] netlink_unicast+0x449/0x710 [ 3527.341675][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.341675][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.341675][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.341675][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.341675][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.341675][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.341675][ T10] [ 3527.343790][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3527.344079][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3527.344079][ T10] netdev_get_by_index+0x5e/0x80 [ 3527.344079][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3527.344079][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3527.344079][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3527.344079][ T10] ipv6_add_addr+0x411/0x2000 [ 3527.344079][ T10] inet6_addr_add+0x30e/0xa40 [ 3527.344079][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.344079][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.344079][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.344079][ T10] netlink_unicast+0x449/0x710 [ 3527.344079][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.344079][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.344079][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.344079][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.344079][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.344079][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.344079][ T10] [ 3527.346523][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3527.346523][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3527.346523][ T10] ipv6_find_idev+0x102/0x170 [ 3527.346523][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.346523][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.346523][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.346523][ T10] netlink_unicast+0x449/0x710 [ 3527.346523][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.346523][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.346523][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.346523][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.346523][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.346523][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.346523][ T10] [ 3527.348437][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3527.348437][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3527.348437][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3527.348437][ T10] ipv6_find_idev+0x102/0x170 [ 3527.348437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.348437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.348437][ T10] netlink_rcv_skb+0x130/0x360 [ 3527.348437][ T10] netlink_unicast+0x449/0x710 [ 3527.348437][ T10] netlink_sendmsg+0x723/0xbe0 [ 3527.348437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3527.348437][ T10] ___sys_sendmsg+0xee/0x170 [ 3527.348437][ T10] __sys_sendmsg+0xcd/0x170 [ 3527.348437][ T10] do_syscall_64+0xc6/0x1e0 [ 3527.348437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.348437][ T10] [ 3537.587753][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3537.588244][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3537.588244][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.588244][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.588244][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.588244][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.588244][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.588244][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.588244][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.588244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.588244][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.588244][ T10] netlink_unicast+0x449/0x710 [ 3537.588244][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.588244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.588244][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.588244][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.588244][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.588244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.588244][ T10] [ 3537.590514][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3537.590514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.590514][ T10] ipv6_find_idev+0x102/0x170 [ 3537.590514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.590514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.590514][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.590514][ T10] netlink_unicast+0x449/0x710 [ 3537.590514][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.590514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.590514][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.590514][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.590514][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.590514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.590514][ T10] [ 3537.592184][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3537.592184][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.592184][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.592184][ T10] ipv6_find_idev+0x102/0x170 [ 3537.592184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.592184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.592184][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.592184][ T10] netlink_unicast+0x449/0x710 [ 3537.592184][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.592184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.592184][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.592184][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.592184][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.592184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.592184][ T10] [ 3537.594094][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3537.594380][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3537.594380][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.594380][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.594380][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.594380][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.594380][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.594380][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.594380][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.594380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.594380][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.594380][ T10] netlink_unicast+0x449/0x710 [ 3537.594380][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.594380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.594380][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.594380][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.594380][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.594380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.594380][ T10] [ 3537.596651][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3537.596651][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.596651][ T10] ipv6_find_idev+0x102/0x170 [ 3537.596651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.596651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.596651][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.596651][ T10] netlink_unicast+0x449/0x710 [ 3537.596651][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.596651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.596651][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.596651][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.596651][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.596651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.596651][ T10] [ 3537.598339][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3537.598339][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.598339][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.598339][ T10] ipv6_find_idev+0x102/0x170 [ 3537.598339][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.598339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.598339][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.598339][ T10] netlink_unicast+0x449/0x710 [ 3537.598339][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.598339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.598339][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.598339][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.598339][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.598339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.598339][ T10] [ 3537.600206][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3537.600492][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3537.600492][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.600492][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.600492][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.600492][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.600492][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.600492][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.600492][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.600492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.600492][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.600492][ T10] netlink_unicast+0x449/0x710 [ 3537.600492][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.600492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.600492][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.600492][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.600492][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.600492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.600492][ T10] [ 3537.602660][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3537.602660][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.602660][ T10] ipv6_find_idev+0x102/0x170 [ 3537.602660][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.602660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.602660][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.602660][ T10] netlink_unicast+0x449/0x710 [ 3537.602660][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.602660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.602660][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.602660][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.602660][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.602660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.602660][ T10] [ 3537.604338][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3537.604338][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.604338][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.604338][ T10] ipv6_find_idev+0x102/0x170 [ 3537.604338][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.604338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.604338][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.604338][ T10] netlink_unicast+0x449/0x710 [ 3537.604338][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.604338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.604338][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.604338][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.604338][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.604338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.604338][ T10] [ 3537.606148][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3537.606424][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3537.606424][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.606424][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.606424][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.606424][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.606424][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.606424][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.606424][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.606424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.606424][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.606424][ T10] netlink_unicast+0x449/0x710 [ 3537.606424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.606424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.606424][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.606424][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.606424][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.606424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.606424][ T10] [ 3537.608610][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3537.608610][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.608610][ T10] ipv6_find_idev+0x102/0x170 [ 3537.608610][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.608610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.608610][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.608610][ T10] netlink_unicast+0x449/0x710 [ 3537.608610][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.608610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.608610][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.608610][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.608610][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.608610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.608610][ T10] [ 3537.610304][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3537.610304][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.610304][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.610304][ T10] ipv6_find_idev+0x102/0x170 [ 3537.610304][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.610304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.610304][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.610304][ T10] netlink_unicast+0x449/0x710 [ 3537.610304][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.610304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.610304][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.610304][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.610304][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.610304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.610304][ T10] [ 3537.612500][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3537.613148][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3537.613148][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.613148][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.613148][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.613148][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.613148][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.613148][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.613148][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.613148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.613148][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.613148][ T10] netlink_unicast+0x449/0x710 [ 3537.613148][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.613148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.613148][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.613148][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.613148][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.613148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.613148][ T10] [ 3537.615327][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3537.615327][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.615327][ T10] ipv6_find_idev+0x102/0x170 [ 3537.615327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.615327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.615327][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.615327][ T10] netlink_unicast+0x449/0x710 [ 3537.615327][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.615327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.615327][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.615327][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.615327][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.615327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.615327][ T10] [ 3537.617031][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3537.617031][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.617031][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.617031][ T10] ipv6_find_idev+0x102/0x170 [ 3537.617031][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.617031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.617031][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.617031][ T10] netlink_unicast+0x449/0x710 [ 3537.617031][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.617031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.617031][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.617031][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.617031][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.617031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.617031][ T10] [ 3537.618889][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3537.619193][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3537.619193][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.619193][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.619193][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.619193][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.619193][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.619193][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.619193][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.619193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.619193][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.619193][ T10] netlink_unicast+0x449/0x710 [ 3537.619193][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.619193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.619193][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.619193][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.619193][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.619193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.619193][ T10] [ 3537.621366][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3537.621366][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.621366][ T10] ipv6_find_idev+0x102/0x170 [ 3537.621366][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.621366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.621366][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.621366][ T10] netlink_unicast+0x449/0x710 [ 3537.621366][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.621366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.621366][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.621366][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.621366][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.621366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.621366][ T10] [ 3537.623157][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3537.623157][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.623157][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.623157][ T10] ipv6_find_idev+0x102/0x170 [ 3537.623157][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.623157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.623157][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.623157][ T10] netlink_unicast+0x449/0x710 [ 3537.623157][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.623157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.623157][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.623157][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.623157][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.623157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.623157][ T10] [ 3537.625332][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3537.625646][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3537.625646][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.625646][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.625646][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.625646][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.625646][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.625646][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.625646][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.625646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.625646][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.625646][ T10] netlink_unicast+0x449/0x710 [ 3537.625646][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.625646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.625646][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.625646][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.625646][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.625646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.625646][ T10] [ 3537.628026][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3537.628026][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.628026][ T10] ipv6_find_idev+0x102/0x170 [ 3537.628026][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.628026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.628026][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.628026][ T10] netlink_unicast+0x449/0x710 [ 3537.628026][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.628026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.628026][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.628026][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.628026][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.628026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.628026][ T10] [ 3537.629881][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3537.629881][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.629881][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.629881][ T10] ipv6_find_idev+0x102/0x170 [ 3537.629881][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.629881][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.629881][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.629881][ T10] netlink_unicast+0x449/0x710 [ 3537.629881][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.629881][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.629881][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.629881][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.629881][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.629881][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.629881][ T10] [ 3537.632011][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3537.632362][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3537.632362][ T10] netdev_get_by_index+0x5e/0x80 [ 3537.632362][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3537.632362][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3537.632362][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3537.632362][ T10] ipv6_add_addr+0x411/0x2000 [ 3537.632362][ T10] inet6_addr_add+0x30e/0xa40 [ 3537.632362][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.632362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.632362][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.632362][ T10] netlink_unicast+0x449/0x710 [ 3537.632362][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.632362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.632362][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.632362][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.632362][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.632362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.632362][ T10] [ 3537.634754][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3537.634754][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3537.634754][ T10] ipv6_find_idev+0x102/0x170 [ 3537.634754][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.634754][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.634754][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.634754][ T10] netlink_unicast+0x449/0x710 [ 3537.634754][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.634754][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.634754][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.634754][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.634754][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.634754][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.634754][ T10] [ 3537.636734][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3537.636734][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3537.636734][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3537.636734][ T10] ipv6_find_idev+0x102/0x170 [ 3537.636734][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.636734][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.636734][ T10] netlink_rcv_skb+0x130/0x360 [ 3537.636734][ T10] netlink_unicast+0x449/0x710 [ 3537.636734][ T10] netlink_sendmsg+0x723/0xbe0 [ 3537.636734][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3537.636734][ T10] ___sys_sendmsg+0xee/0x170 [ 3537.636734][ T10] __sys_sendmsg+0xcd/0x170 [ 3537.636734][ T10] do_syscall_64+0xc6/0x1e0 [ 3537.636734][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.636734][ T10] [ 3547.875754][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3547.876219][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3547.876219][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.876219][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.876219][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.876219][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.876219][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.876219][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.876219][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.876219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.876219][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.876219][ T10] netlink_unicast+0x449/0x710 [ 3547.876219][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.876219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.876219][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.876219][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.876219][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.876219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.876219][ T10] [ 3547.878446][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3547.878446][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.878446][ T10] ipv6_find_idev+0x102/0x170 [ 3547.878446][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.878446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.878446][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.878446][ T10] netlink_unicast+0x449/0x710 [ 3547.878446][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.878446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.878446][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.878446][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.878446][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.878446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.878446][ T10] [ 3547.880162][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3547.880162][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.880162][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.880162][ T10] ipv6_find_idev+0x102/0x170 [ 3547.880162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.880162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.880162][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.880162][ T10] netlink_unicast+0x449/0x710 [ 3547.880162][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.880162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.880162][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.880162][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.880162][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.880162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.880162][ T10] [ 3547.882039][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3547.882320][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3547.882320][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.882320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.882320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.882320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.882320][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.882320][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.882320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.882320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.882320][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.882320][ T10] netlink_unicast+0x449/0x710 [ 3547.882320][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.882320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.882320][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.882320][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.882320][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.882320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.882320][ T10] [ 3547.884559][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3547.884559][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.884559][ T10] ipv6_find_idev+0x102/0x170 [ 3547.884559][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.884559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.884559][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.884559][ T10] netlink_unicast+0x449/0x710 [ 3547.884559][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.884559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.884559][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.884559][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.884559][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.884559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.884559][ T10] [ 3547.886318][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3547.886318][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.886318][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.886318][ T10] ipv6_find_idev+0x102/0x170 [ 3547.886318][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.886318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.886318][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.886318][ T10] netlink_unicast+0x449/0x710 [ 3547.886318][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.886318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.886318][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.886318][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.886318][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.886318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.886318][ T10] [ 3547.888151][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3547.888452][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3547.888452][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.888452][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.888452][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.888452][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.888452][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.888452][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.888452][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.888452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.888452][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.888452][ T10] netlink_unicast+0x449/0x710 [ 3547.888452][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.888452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.888452][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.888452][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.888452][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.888452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.888452][ T10] [ 3547.890644][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3547.890644][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.890644][ T10] ipv6_find_idev+0x102/0x170 [ 3547.890644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.890644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.890644][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.890644][ T10] netlink_unicast+0x449/0x710 [ 3547.890644][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.890644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.890644][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.890644][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.890644][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.890644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.890644][ T10] [ 3547.892381][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3547.892381][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.892381][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.892381][ T10] ipv6_find_idev+0x102/0x170 [ 3547.892381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.892381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.892381][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.892381][ T10] netlink_unicast+0x449/0x710 [ 3547.892381][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.892381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.892381][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.892381][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.892381][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.892381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.892381][ T10] [ 3547.894281][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3547.894566][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3547.894566][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.894566][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.894566][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.894566][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.894566][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.894566][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.894566][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.894566][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.894566][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.894566][ T10] netlink_unicast+0x449/0x710 [ 3547.894566][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.894566][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.894566][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.894566][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.894566][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.894566][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.894566][ T10] [ 3547.896795][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3547.896795][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.896795][ T10] ipv6_find_idev+0x102/0x170 [ 3547.896795][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.896795][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.896795][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.896795][ T10] netlink_unicast+0x449/0x710 [ 3547.896795][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.896795][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.896795][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.896795][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.896795][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.896795][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.896795][ T10] [ 3547.898483][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3547.898483][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.898483][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.898483][ T10] ipv6_find_idev+0x102/0x170 [ 3547.898483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.898483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.898483][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.898483][ T10] netlink_unicast+0x449/0x710 [ 3547.898483][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.898483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.898483][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.898483][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.898483][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.898483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.898483][ T10] [ 3547.900913][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3547.901194][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3547.901194][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.901194][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.901194][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.901194][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.901194][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.901194][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.901194][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.901194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.901194][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.901194][ T10] netlink_unicast+0x449/0x710 [ 3547.901194][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.901194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.901194][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.901194][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.901194][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.901194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.901194][ T10] [ 3547.903406][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3547.903406][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.903406][ T10] ipv6_find_idev+0x102/0x170 [ 3547.903406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.903406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.903406][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.903406][ T10] netlink_unicast+0x449/0x710 [ 3547.903406][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.903406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.903406][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.903406][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.903406][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.903406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.903406][ T10] [ 3547.905151][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3547.905151][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.905151][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.905151][ T10] ipv6_find_idev+0x102/0x170 [ 3547.905151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.905151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.905151][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.905151][ T10] netlink_unicast+0x449/0x710 [ 3547.905151][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.905151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.905151][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.905151][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.905151][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.905151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.905151][ T10] [ 3547.907049][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3547.907333][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3547.907333][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.907333][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.907333][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.907333][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.907333][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.907333][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.907333][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.907333][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.907333][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.907333][ T10] netlink_unicast+0x449/0x710 [ 3547.907333][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.907333][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.907333][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.907333][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.907333][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.907333][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.907333][ T10] [ 3547.909694][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3547.909694][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.909694][ T10] ipv6_find_idev+0x102/0x170 [ 3547.909694][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.909694][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.909694][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.909694][ T10] netlink_unicast+0x449/0x710 [ 3547.909694][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.909694][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.909694][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.909694][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.909694][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.909694][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.909694][ T10] [ 3547.911614][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3547.911614][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.911614][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.911614][ T10] ipv6_find_idev+0x102/0x170 [ 3547.911614][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.911614][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.911614][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.911614][ T10] netlink_unicast+0x449/0x710 [ 3547.911614][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.911614][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.911614][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.911614][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.911614][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.911614][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.911614][ T10] [ 3547.913663][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3547.913959][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3547.913959][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.913959][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.913959][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.913959][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.913959][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.913959][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.913959][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.913959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.913959][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.913959][ T10] netlink_unicast+0x449/0x710 [ 3547.913959][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.913959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.913959][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.913959][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.913959][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.913959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.913959][ T10] [ 3547.916298][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3547.916298][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.916298][ T10] ipv6_find_idev+0x102/0x170 [ 3547.916298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.916298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.916298][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.916298][ T10] netlink_unicast+0x449/0x710 [ 3547.916298][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.916298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.916298][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.916298][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.916298][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.916298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.916298][ T10] [ 3547.918129][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3547.918129][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.918129][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.918129][ T10] ipv6_find_idev+0x102/0x170 [ 3547.918129][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.918129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.918129][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.918129][ T10] netlink_unicast+0x449/0x710 [ 3547.918129][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.918129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.918129][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.918129][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.918129][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.918129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.918129][ T10] [ 3547.920227][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3547.920525][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3547.920525][ T10] netdev_get_by_index+0x5e/0x80 [ 3547.920525][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3547.920525][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3547.920525][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3547.920525][ T10] ipv6_add_addr+0x411/0x2000 [ 3547.920525][ T10] inet6_addr_add+0x30e/0xa40 [ 3547.920525][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3547.920525][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.920525][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.920525][ T10] netlink_unicast+0x449/0x710 [ 3547.920525][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.920525][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.920525][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.920525][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.920525][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.920525][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.920525][ T10] [ 3547.922932][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3547.922932][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3547.922932][ T10] ipv6_find_idev+0x102/0x170 [ 3547.922932][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.922932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.922932][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.922932][ T10] netlink_unicast+0x449/0x710 [ 3547.922932][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.922932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.922932][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.922932][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.922932][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.922932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.922932][ T10] [ 3547.924799][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3547.924799][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3547.924799][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3547.924799][ T10] ipv6_find_idev+0x102/0x170 [ 3547.924799][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3547.924799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3547.924799][ T10] netlink_rcv_skb+0x130/0x360 [ 3547.924799][ T10] netlink_unicast+0x449/0x710 [ 3547.924799][ T10] netlink_sendmsg+0x723/0xbe0 [ 3547.924799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3547.924799][ T10] ___sys_sendmsg+0xee/0x170 [ 3547.924799][ T10] __sys_sendmsg+0xcd/0x170 [ 3547.924799][ T10] do_syscall_64+0xc6/0x1e0 [ 3547.924799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3547.924799][ T10] [ 3558.163754][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3558.164162][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3558.164162][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.164162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.164162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.164162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.164162][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.164162][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.164162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.164162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.164162][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.164162][ T10] netlink_unicast+0x449/0x710 [ 3558.164162][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.164162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.164162][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.164162][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.164162][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.164162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.164162][ T10] [ 3558.166400][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3558.166400][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.166400][ T10] ipv6_find_idev+0x102/0x170 [ 3558.166400][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.166400][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.166400][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.166400][ T10] netlink_unicast+0x449/0x710 [ 3558.166400][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.166400][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.166400][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.166400][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.166400][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.166400][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.166400][ T10] [ 3558.168095][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3558.168095][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.168095][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.168095][ T10] ipv6_find_idev+0x102/0x170 [ 3558.168095][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.168095][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.168095][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.168095][ T10] netlink_unicast+0x449/0x710 [ 3558.168095][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.168095][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.168095][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.168095][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.168095][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.168095][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.168095][ T10] [ 3558.169929][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3558.170229][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3558.170229][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.170229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.170229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.170229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.170229][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.170229][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.170229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.170229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.170229][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.170229][ T10] netlink_unicast+0x449/0x710 [ 3558.170229][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.170229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.170229][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.170229][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.170229][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.170229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.170229][ T10] [ 3558.172403][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3558.172403][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.172403][ T10] ipv6_find_idev+0x102/0x170 [ 3558.172403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.172403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.172403][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.172403][ T10] netlink_unicast+0x449/0x710 [ 3558.172403][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.172403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.172403][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.172403][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.172403][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.172403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.172403][ T10] [ 3558.174067][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3558.174067][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.174067][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.174067][ T10] ipv6_find_idev+0x102/0x170 [ 3558.174067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.174067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.174067][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.174067][ T10] netlink_unicast+0x449/0x710 [ 3558.174067][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.174067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.174067][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.174067][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.174067][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.174067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.174067][ T10] [ 3558.175953][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3558.176249][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3558.176249][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.176249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.176249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.176249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.176249][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.176249][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.176249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.176249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.176249][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.176249][ T10] netlink_unicast+0x449/0x710 [ 3558.176249][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.176249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.176249][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.176249][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.176249][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.176249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.176249][ T10] [ 3558.178408][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3558.178408][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.178408][ T10] ipv6_find_idev+0x102/0x170 [ 3558.178408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.178408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.178408][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.178408][ T10] netlink_unicast+0x449/0x710 [ 3558.178408][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.178408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.178408][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.178408][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.178408][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.178408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.178408][ T10] [ 3558.180097][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3558.180097][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.180097][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.180097][ T10] ipv6_find_idev+0x102/0x170 [ 3558.180097][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.180097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.180097][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.180097][ T10] netlink_unicast+0x449/0x710 [ 3558.180097][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.180097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.180097][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.180097][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.180097][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.180097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.180097][ T10] [ 3558.181911][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3558.182210][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3558.182210][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.182210][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.182210][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.182210][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.182210][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.182210][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.182210][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.182210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.182210][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.182210][ T10] netlink_unicast+0x449/0x710 [ 3558.182210][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.182210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.182210][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.182210][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.182210][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.182210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.182210][ T10] [ 3558.184411][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3558.184411][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.184411][ T10] ipv6_find_idev+0x102/0x170 [ 3558.184411][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.184411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.184411][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.184411][ T10] netlink_unicast+0x449/0x710 [ 3558.184411][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.184411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.184411][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.184411][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.184411][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.184411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.184411][ T10] [ 3558.186099][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3558.186099][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.186099][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.186099][ T10] ipv6_find_idev+0x102/0x170 [ 3558.186099][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.186099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.186099][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.186099][ T10] netlink_unicast+0x449/0x710 [ 3558.186099][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.186099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.186099][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.186099][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.186099][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.186099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.186099][ T10] [ 3558.188013][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3558.188299][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3558.188299][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.188299][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.188299][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.188299][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.188299][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.188299][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.188299][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.188299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.188299][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.188299][ T10] netlink_unicast+0x449/0x710 [ 3558.188299][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.188299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.188299][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.188299][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.188299][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.188299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.188299][ T10] [ 3558.190470][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3558.190470][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.190470][ T10] ipv6_find_idev+0x102/0x170 [ 3558.190470][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.190470][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.190470][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.190470][ T10] netlink_unicast+0x449/0x710 [ 3558.190470][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.190470][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.190470][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.190470][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.190470][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.190470][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.190470][ T10] [ 3558.192180][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3558.192180][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.192180][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.192180][ T10] ipv6_find_idev+0x102/0x170 [ 3558.192180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.192180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.192180][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.192180][ T10] netlink_unicast+0x449/0x710 [ 3558.192180][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.192180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.192180][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.192180][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.192180][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.192180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.192180][ T10] [ 3558.194276][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3558.194609][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3558.194609][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.194609][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.194609][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.194609][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.194609][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.194609][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.194609][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.194609][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.194609][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.194609][ T10] netlink_unicast+0x449/0x710 [ 3558.194609][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.194609][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.194609][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.194609][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.194609][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.194609][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.194609][ T10] [ 3558.197036][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3558.197036][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.197036][ T10] ipv6_find_idev+0x102/0x170 [ 3558.197036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.197036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.197036][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.197036][ T10] netlink_unicast+0x449/0x710 [ 3558.197036][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.197036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.197036][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.197036][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.197036][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.197036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.197036][ T10] [ 3558.198886][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3558.198886][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.198886][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.198886][ T10] ipv6_find_idev+0x102/0x170 [ 3558.198886][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.198886][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.198886][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.198886][ T10] netlink_unicast+0x449/0x710 [ 3558.198886][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.198886][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.198886][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.198886][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.198886][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.198886][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.198886][ T10] [ 3558.201021][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3558.201310][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3558.201310][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.201310][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.201310][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.201310][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.201310][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.201310][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.201310][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.201310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.201310][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.201310][ T10] netlink_unicast+0x449/0x710 [ 3558.201310][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.201310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.201310][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.201310][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.201310][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.201310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.201310][ T10] [ 3558.203654][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3558.203654][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.203654][ T10] ipv6_find_idev+0x102/0x170 [ 3558.203654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.203654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.203654][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.203654][ T10] netlink_unicast+0x449/0x710 [ 3558.203654][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.203654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.203654][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.203654][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.203654][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.203654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.203654][ T10] [ 3558.205513][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3558.205513][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.205513][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.205513][ T10] ipv6_find_idev+0x102/0x170 [ 3558.205513][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.205513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.205513][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.205513][ T10] netlink_unicast+0x449/0x710 [ 3558.205513][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.205513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.205513][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.205513][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.205513][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.205513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.205513][ T10] [ 3558.207599][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3558.207956][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3558.207956][ T10] netdev_get_by_index+0x5e/0x80 [ 3558.207956][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3558.207956][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3558.207956][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3558.207956][ T10] ipv6_add_addr+0x411/0x2000 [ 3558.207956][ T10] inet6_addr_add+0x30e/0xa40 [ 3558.207956][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.207956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.207956][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.207956][ T10] netlink_unicast+0x449/0x710 [ 3558.207956][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.207956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.207956][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.207956][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.207956][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.207956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.207956][ T10] [ 3558.210292][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3558.210292][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3558.210292][ T10] ipv6_find_idev+0x102/0x170 [ 3558.210292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.210292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.210292][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.210292][ T10] netlink_unicast+0x449/0x710 [ 3558.210292][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.210292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.210292][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.210292][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.210292][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.210292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.210292][ T10] [ 3558.212163][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3558.212163][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3558.212163][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3558.212163][ T10] ipv6_find_idev+0x102/0x170 [ 3558.212163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.212163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.212163][ T10] netlink_rcv_skb+0x130/0x360 [ 3558.212163][ T10] netlink_unicast+0x449/0x710 [ 3558.212163][ T10] netlink_sendmsg+0x723/0xbe0 [ 3558.212163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3558.212163][ T10] ___sys_sendmsg+0xee/0x170 [ 3558.212163][ T10] __sys_sendmsg+0xcd/0x170 [ 3558.212163][ T10] do_syscall_64+0xc6/0x1e0 [ 3558.212163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.212163][ T10] [ 3564.835797][ T42] INFO: task modprobe:14797 blocked for more than 491 seconds. [ 3564.836171][ T42] Not tainted 6.8.0-virtme #1 [ 3564.836291][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3564.836499][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 3564.836780][ T42] Call Trace: [ 3564.836885][ T42] [ 3564.836956][ T42] __schedule+0x705/0x1ac0 [ 3564.837097][ T42] ? __pfx___schedule+0x10/0x10 [ 3564.837222][ T42] ? schedule+0x1a5/0x210 [ 3564.837320][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3564.837450][ T42] ? mark_lock+0x38/0x3e0 [ 3564.837546][ T42] ? do_raw_spin_lock+0x131/0x270 [ 3564.837686][ T42] ? schedule+0x1a5/0x210 [ 3564.837792][ T42] schedule+0xdf/0x210 [ 3564.837888][ T42] schedule_preempt_disabled+0x15/0x30 [ 3564.838012][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 3564.838146][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 3564.838304][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3564.838446][ T42] ? lock_acquire+0x1c1/0x220 [ 3564.838576][ T42] ? register_pernet_subsys+0x1a/0x50 [ 3564.838718][ T42] down_write+0x1c9/0x200 [ 3564.838814][ T42] ? __pfx_down_write+0x10/0x10 [ 3564.838942][ T42] ? __lock_release+0x103/0x460 [ 3564.839066][ T42] ? __create_object+0x5e/0xb0 [ 3564.839196][ T42] ? __pfx___lock_release+0x10/0x10 [ 3564.839323][ T42] register_pernet_subsys+0x1a/0x50 [ 3564.839454][ T42] tcf_register_action+0xa3/0x600 [ 3564.839581][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 3564.839749][ T42] do_one_initcall+0xc8/0x3f0 [ 3564.839877][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 3564.840007][ T42] ? __create_object+0x5e/0xb0 [ 3564.840134][ T42] ? kasan_unpoison+0x27/0x60 [ 3564.840268][ T42] do_init_module+0x233/0x740 [ 3564.840402][ T42] load_module+0x16b5/0x2350 [ 3564.840540][ T42] ? __pfx_load_module+0x10/0x10 [ 3564.840687][ T42] ? kernel_read_file+0x3d2/0x520 [ 3564.840820][ T42] ? kernel_read_file+0x300/0x520 [ 3564.840948][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 3564.841087][ T42] ? init_module_from_file+0xd2/0x130 [ 3564.841209][ T42] init_module_from_file+0xd2/0x130 [ 3564.841337][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 3564.841491][ T42] ? __lock_release+0x103/0x460 [ 3564.841617][ T42] ? idempotent_init_module+0x32a/0x620 [ 3564.841758][ T42] ? idempotent_init_module+0x32a/0x620 [ 3564.841887][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 3564.842013][ T42] idempotent_init_module+0x342/0x620 [ 3564.842140][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 3564.842317][ T42] __x64_sys_finit_module+0xbe/0x130 [ 3564.842443][ T42] do_syscall_64+0xc6/0x1e0 [ 3564.842571][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3564.842740][ T42] RIP: 0033:0x7f188f3c6e5d [ 3564.842868][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3564.843055][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 3564.843238][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 3564.843428][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 3564.843629][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 3564.843825][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 3564.844021][ T42] [ 3564.844116][ T42] [ 3564.844116][ T42] Showing all locks held in the system: [ 3564.844296][ T42] 3 locks held by kworker/u16:0/10: [ 3564.844418][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3564.844692][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3564.844914][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 3564.845139][ T42] 1 lock held by khungtaskd/42: [ 3564.845261][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 3564.845490][ T42] 2 locks held by kworker/u20:2/10034: [ 3564.845607][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3564.845865][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3564.846146][ T42] 1 lock held by modprobe/14797: [ 3564.846264][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 3564.846512][ T42] [ 3564.846573][ T42] ============================================= [ 3564.846573][ T42] [ 3568.451764][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3568.452241][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3568.452241][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.452241][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.452241][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.452241][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.452241][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.452241][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.452241][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.452241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.452241][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.452241][ T10] netlink_unicast+0x449/0x710 [ 3568.452241][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.452241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.452241][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.452241][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.452241][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.452241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.452241][ T10] [ 3568.454496][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3568.454496][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.454496][ T10] ipv6_find_idev+0x102/0x170 [ 3568.454496][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.454496][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.454496][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.454496][ T10] netlink_unicast+0x449/0x710 [ 3568.454496][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.454496][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.454496][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.454496][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.454496][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.454496][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.454496][ T10] [ 3568.456180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3568.456180][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.456180][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.456180][ T10] ipv6_find_idev+0x102/0x170 [ 3568.456180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.456180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.456180][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.456180][ T10] netlink_unicast+0x449/0x710 [ 3568.456180][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.456180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.456180][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.456180][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.456180][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.456180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.456180][ T10] [ 3568.457996][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3568.458293][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3568.458293][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.458293][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.458293][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.458293][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.458293][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.458293][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.458293][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.458293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.458293][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.458293][ T10] netlink_unicast+0x449/0x710 [ 3568.458293][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.458293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.458293][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.458293][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.458293][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.458293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.458293][ T10] [ 3568.460539][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3568.460539][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.460539][ T10] ipv6_find_idev+0x102/0x170 [ 3568.460539][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.460539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.460539][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.460539][ T10] netlink_unicast+0x449/0x710 [ 3568.460539][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.460539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.460539][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.460539][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.460539][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.460539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.460539][ T10] [ 3568.462213][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3568.462213][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.462213][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.462213][ T10] ipv6_find_idev+0x102/0x170 [ 3568.462213][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.462213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.462213][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.462213][ T10] netlink_unicast+0x449/0x710 [ 3568.462213][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.462213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.462213][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.462213][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.462213][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.462213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.462213][ T10] [ 3568.464078][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3568.464366][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3568.464366][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.464366][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.464366][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.464366][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.464366][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.464366][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.464366][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.464366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.464366][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.464366][ T10] netlink_unicast+0x449/0x710 [ 3568.464366][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.464366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.464366][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.464366][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.464366][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.464366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.464366][ T10] [ 3568.466564][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3568.466564][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.466564][ T10] ipv6_find_idev+0x102/0x170 [ 3568.466564][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.466564][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.466564][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.466564][ T10] netlink_unicast+0x449/0x710 [ 3568.466564][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.466564][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.466564][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.466564][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.466564][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.466564][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.466564][ T10] [ 3568.468253][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3568.468253][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.468253][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.468253][ T10] ipv6_find_idev+0x102/0x170 [ 3568.468253][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.468253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.468253][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.468253][ T10] netlink_unicast+0x449/0x710 [ 3568.468253][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.468253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.468253][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.468253][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.468253][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.468253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.468253][ T10] [ 3568.470094][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3568.470374][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3568.470374][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.470374][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.470374][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.470374][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.470374][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.470374][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.470374][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.470374][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.470374][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.470374][ T10] netlink_unicast+0x449/0x710 [ 3568.470374][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.470374][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.470374][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.470374][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.470374][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.470374][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.470374][ T10] [ 3568.472613][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3568.472613][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.472613][ T10] ipv6_find_idev+0x102/0x170 [ 3568.472613][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.472613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.472613][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.472613][ T10] netlink_unicast+0x449/0x710 [ 3568.472613][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.472613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.472613][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.472613][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.472613][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.472613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.472613][ T10] [ 3568.474325][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3568.474325][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.474325][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.474325][ T10] ipv6_find_idev+0x102/0x170 [ 3568.474325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.474325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.474325][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.474325][ T10] netlink_unicast+0x449/0x710 [ 3568.474325][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.474325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.474325][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.474325][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.474325][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.474325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.474325][ T10] [ 3568.476597][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3568.477221][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3568.477221][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.477221][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.477221][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.477221][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.477221][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.477221][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.477221][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.477221][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.477221][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.477221][ T10] netlink_unicast+0x449/0x710 [ 3568.477221][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.477221][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.477221][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.477221][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.477221][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.477221][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.477221][ T10] [ 3568.479400][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3568.479400][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.479400][ T10] ipv6_find_idev+0x102/0x170 [ 3568.479400][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.479400][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.479400][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.479400][ T10] netlink_unicast+0x449/0x710 [ 3568.479400][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.479400][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.479400][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.479400][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.479400][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.479400][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.479400][ T10] [ 3568.481084][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3568.481084][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.481084][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.481084][ T10] ipv6_find_idev+0x102/0x170 [ 3568.481084][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.481084][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.481084][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.481084][ T10] netlink_unicast+0x449/0x710 [ 3568.481084][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.481084][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.481084][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.481084][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.481084][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.481084][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.481084][ T10] [ 3568.482914][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3568.483219][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3568.483219][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.483219][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.483219][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.483219][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.483219][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.483219][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.483219][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.483219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.483219][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.483219][ T10] netlink_unicast+0x449/0x710 [ 3568.483219][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.483219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.483219][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.483219][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.483219][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.483219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.483219][ T10] [ 3568.485408][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3568.485408][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.485408][ T10] ipv6_find_idev+0x102/0x170 [ 3568.485408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.485408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.485408][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.485408][ T10] netlink_unicast+0x449/0x710 [ 3568.485408][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.485408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.485408][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.485408][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.485408][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.485408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.485408][ T10] [ 3568.487185][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3568.487185][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.487185][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.487185][ T10] ipv6_find_idev+0x102/0x170 [ 3568.487185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.487185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.487185][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.487185][ T10] netlink_unicast+0x449/0x710 [ 3568.487185][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.487185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.487185][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.487185][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.487185][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.487185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.487185][ T10] [ 3568.489268][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3568.489553][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3568.489553][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.489553][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.489553][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.489553][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.489553][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.489553][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.489553][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.489553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.489553][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.489553][ T10] netlink_unicast+0x449/0x710 [ 3568.489553][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.489553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.489553][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.489553][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.489553][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.489553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.489553][ T10] [ 3568.491932][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3568.491932][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.491932][ T10] ipv6_find_idev+0x102/0x170 [ 3568.491932][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.491932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.491932][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.491932][ T10] netlink_unicast+0x449/0x710 [ 3568.491932][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.491932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.491932][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.491932][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.491932][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.491932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.491932][ T10] [ 3568.493791][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3568.493791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.493791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.493791][ T10] ipv6_find_idev+0x102/0x170 [ 3568.493791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.493791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.493791][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.493791][ T10] netlink_unicast+0x449/0x710 [ 3568.493791][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.493791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.493791][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.493791][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.493791][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.493791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.493791][ T10] [ 3568.495906][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3568.496185][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3568.496185][ T10] netdev_get_by_index+0x5e/0x80 [ 3568.496185][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3568.496185][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3568.496185][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3568.496185][ T10] ipv6_add_addr+0x411/0x2000 [ 3568.496185][ T10] inet6_addr_add+0x30e/0xa40 [ 3568.496185][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.496185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.496185][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.496185][ T10] netlink_unicast+0x449/0x710 [ 3568.496185][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.496185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.496185][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.496185][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.496185][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.496185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.496185][ T10] [ 3568.498530][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3568.498530][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3568.498530][ T10] ipv6_find_idev+0x102/0x170 [ 3568.498530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.498530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.498530][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.498530][ T10] netlink_unicast+0x449/0x710 [ 3568.498530][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.498530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.498530][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.498530][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.498530][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.498530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.498530][ T10] [ 3568.500406][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3568.500406][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3568.500406][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3568.500406][ T10] ipv6_find_idev+0x102/0x170 [ 3568.500406][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.500406][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.500406][ T10] netlink_rcv_skb+0x130/0x360 [ 3568.500406][ T10] netlink_unicast+0x449/0x710 [ 3568.500406][ T10] netlink_sendmsg+0x723/0xbe0 [ 3568.500406][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3568.500406][ T10] ___sys_sendmsg+0xee/0x170 [ 3568.500406][ T10] __sys_sendmsg+0xcd/0x170 [ 3568.500406][ T10] do_syscall_64+0xc6/0x1e0 [ 3568.500406][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.500406][ T10] [ 3578.739761][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3578.740225][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3578.740225][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.740225][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.740225][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.740225][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.740225][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.740225][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.740225][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.740225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.740225][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.740225][ T10] netlink_unicast+0x449/0x710 [ 3578.740225][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.740225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.740225][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.740225][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.740225][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.740225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.740225][ T10] [ 3578.742462][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3578.742462][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.742462][ T10] ipv6_find_idev+0x102/0x170 [ 3578.742462][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.742462][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.742462][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.742462][ T10] netlink_unicast+0x449/0x710 [ 3578.742462][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.742462][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.742462][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.742462][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.742462][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.742462][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.742462][ T10] [ 3578.744189][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3578.744189][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.744189][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.744189][ T10] ipv6_find_idev+0x102/0x170 [ 3578.744189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.744189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.744189][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.744189][ T10] netlink_unicast+0x449/0x710 [ 3578.744189][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.744189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.744189][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.744189][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.744189][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.744189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.744189][ T10] [ 3578.746075][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3578.746370][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3578.746370][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.746370][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.746370][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.746370][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.746370][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.746370][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.746370][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.746370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.746370][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.746370][ T10] netlink_unicast+0x449/0x710 [ 3578.746370][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.746370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.746370][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.746370][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.746370][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.746370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.746370][ T10] [ 3578.748569][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3578.748569][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.748569][ T10] ipv6_find_idev+0x102/0x170 [ 3578.748569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.748569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.748569][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.748569][ T10] netlink_unicast+0x449/0x710 [ 3578.748569][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.748569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.748569][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.748569][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.748569][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.748569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.748569][ T10] [ 3578.750260][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3578.750260][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.750260][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.750260][ T10] ipv6_find_idev+0x102/0x170 [ 3578.750260][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.750260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.750260][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.750260][ T10] netlink_unicast+0x449/0x710 [ 3578.750260][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.750260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.750260][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.750260][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.750260][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.750260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.750260][ T10] [ 3578.752116][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3578.752401][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3578.752401][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.752401][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.752401][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.752401][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.752401][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.752401][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.752401][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.752401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.752401][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.752401][ T10] netlink_unicast+0x449/0x710 [ 3578.752401][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.752401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.752401][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.752401][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.752401][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.752401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.752401][ T10] [ 3578.754613][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3578.754613][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.754613][ T10] ipv6_find_idev+0x102/0x170 [ 3578.754613][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.754613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.754613][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.754613][ T10] netlink_unicast+0x449/0x710 [ 3578.754613][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.754613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.754613][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.754613][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.754613][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.754613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.754613][ T10] [ 3578.756290][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3578.756290][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.756290][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.756290][ T10] ipv6_find_idev+0x102/0x170 [ 3578.756290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.756290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.756290][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.756290][ T10] netlink_unicast+0x449/0x710 [ 3578.756290][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.756290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.756290][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.756290][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.756290][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.756290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.756290][ T10] [ 3578.758152][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3578.758433][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3578.758433][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.758433][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.758433][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.758433][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.758433][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.758433][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.758433][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.758433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.758433][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.758433][ T10] netlink_unicast+0x449/0x710 [ 3578.758433][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.758433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.758433][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.758433][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.758433][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.758433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.758433][ T10] [ 3578.760633][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3578.760633][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.760633][ T10] ipv6_find_idev+0x102/0x170 [ 3578.760633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.760633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.760633][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.760633][ T10] netlink_unicast+0x449/0x710 [ 3578.760633][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.760633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.760633][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.760633][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.760633][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.760633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.760633][ T10] [ 3578.762334][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3578.762334][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.762334][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.762334][ T10] ipv6_find_idev+0x102/0x170 [ 3578.762334][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.762334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.762334][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.762334][ T10] netlink_unicast+0x449/0x710 [ 3578.762334][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.762334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.762334][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.762334][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.762334][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.762334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.762334][ T10] [ 3578.764585][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3578.765210][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3578.765210][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.765210][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.765210][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.765210][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.765210][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.765210][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.765210][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.765210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.765210][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.765210][ T10] netlink_unicast+0x449/0x710 [ 3578.765210][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.765210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.765210][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.765210][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.765210][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.765210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.765210][ T10] [ 3578.767391][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3578.767391][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.767391][ T10] ipv6_find_idev+0x102/0x170 [ 3578.767391][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.767391][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.767391][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.767391][ T10] netlink_unicast+0x449/0x710 [ 3578.767391][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.767391][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.767391][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.767391][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.767391][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.767391][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.767391][ T10] [ 3578.769073][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3578.769073][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.769073][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.769073][ T10] ipv6_find_idev+0x102/0x170 [ 3578.769073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.769073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.769073][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.769073][ T10] netlink_unicast+0x449/0x710 [ 3578.769073][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.769073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.769073][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.769073][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.769073][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.769073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.769073][ T10] [ 3578.770902][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3578.771215][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3578.771215][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.771215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.771215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.771215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.771215][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.771215][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.771215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.771215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.771215][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.771215][ T10] netlink_unicast+0x449/0x710 [ 3578.771215][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.771215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.771215][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.771215][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.771215][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.771215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.771215][ T10] [ 3578.773464][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3578.773464][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.773464][ T10] ipv6_find_idev+0x102/0x170 [ 3578.773464][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.773464][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.773464][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.773464][ T10] netlink_unicast+0x449/0x710 [ 3578.773464][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.773464][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.773464][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.773464][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.773464][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.773464][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.773464][ T10] [ 3578.775308][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3578.775308][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.775308][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.775308][ T10] ipv6_find_idev+0x102/0x170 [ 3578.775308][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.775308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.775308][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.775308][ T10] netlink_unicast+0x449/0x710 [ 3578.775308][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.775308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.775308][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.775308][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.775308][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.775308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.775308][ T10] [ 3578.777323][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3578.777599][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3578.777599][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.777599][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.777599][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.777599][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.777599][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.777599][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.777599][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.777599][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.777599][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.777599][ T10] netlink_unicast+0x449/0x710 [ 3578.777599][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.777599][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.777599][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.777599][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.777599][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.777599][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.777599][ T10] [ 3578.780012][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3578.780012][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.780012][ T10] ipv6_find_idev+0x102/0x170 [ 3578.780012][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.780012][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.780012][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.780012][ T10] netlink_unicast+0x449/0x710 [ 3578.780012][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.780012][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.780012][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.780012][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.780012][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.780012][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.780012][ T10] [ 3578.781881][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3578.781881][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.781881][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.781881][ T10] ipv6_find_idev+0x102/0x170 [ 3578.781881][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.781881][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.781881][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.781881][ T10] netlink_unicast+0x449/0x710 [ 3578.781881][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.781881][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.781881][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.781881][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.781881][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.781881][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.781881][ T10] [ 3578.784004][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3578.784289][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3578.784289][ T10] netdev_get_by_index+0x5e/0x80 [ 3578.784289][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3578.784289][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3578.784289][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3578.784289][ T10] ipv6_add_addr+0x411/0x2000 [ 3578.784289][ T10] inet6_addr_add+0x30e/0xa40 [ 3578.784289][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.784289][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.784289][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.784289][ T10] netlink_unicast+0x449/0x710 [ 3578.784289][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.784289][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.784289][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.784289][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.784289][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.784289][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.784289][ T10] [ 3578.786662][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3578.786662][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3578.786662][ T10] ipv6_find_idev+0x102/0x170 [ 3578.786662][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.786662][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.786662][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.786662][ T10] netlink_unicast+0x449/0x710 [ 3578.786662][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.786662][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.786662][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.786662][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.786662][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.786662][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.786662][ T10] [ 3578.788526][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3578.788526][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3578.788526][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3578.788526][ T10] ipv6_find_idev+0x102/0x170 [ 3578.788526][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.788526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.788526][ T10] netlink_rcv_skb+0x130/0x360 [ 3578.788526][ T10] netlink_unicast+0x449/0x710 [ 3578.788526][ T10] netlink_sendmsg+0x723/0xbe0 [ 3578.788526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3578.788526][ T10] ___sys_sendmsg+0xee/0x170 [ 3578.788526][ T10] __sys_sendmsg+0xcd/0x170 [ 3578.788526][ T10] do_syscall_64+0xc6/0x1e0 [ 3578.788526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.788526][ T10] [ 3589.027776][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3589.028206][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3589.028206][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.028206][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.028206][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.028206][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.028206][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.028206][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.028206][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.028206][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.028206][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.028206][ T10] netlink_unicast+0x449/0x710 [ 3589.028206][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.028206][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.028206][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.028206][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.028206][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.028206][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.028206][ T10] [ 3589.030402][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3589.030402][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.030402][ T10] ipv6_find_idev+0x102/0x170 [ 3589.030402][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.030402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.030402][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.030402][ T10] netlink_unicast+0x449/0x710 [ 3589.030402][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.030402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.030402][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.030402][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.030402][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.030402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.030402][ T10] [ 3589.031919][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3589.031919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.031919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.031919][ T10] ipv6_find_idev+0x102/0x170 [ 3589.031919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.031919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.031919][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.031919][ T10] netlink_unicast+0x449/0x710 [ 3589.031919][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.031919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.031919][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.031919][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.031919][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.031919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.031919][ T10] [ 3589.033577][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3589.033854][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3589.033854][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.033854][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.033854][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.033854][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.033854][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.033854][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.033854][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.033854][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.033854][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.033854][ T10] netlink_unicast+0x449/0x710 [ 3589.033854][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.033854][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.033854][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.033854][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.033854][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.033854][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.033854][ T10] [ 3589.035818][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3589.035818][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.035818][ T10] ipv6_find_idev+0x102/0x170 [ 3589.035818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.035818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.035818][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.035818][ T10] netlink_unicast+0x449/0x710 [ 3589.035818][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.035818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.035818][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.035818][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.035818][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.035818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.035818][ T10] [ 3589.037336][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3589.037336][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.037336][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.037336][ T10] ipv6_find_idev+0x102/0x170 [ 3589.037336][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.037336][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.037336][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.037336][ T10] netlink_unicast+0x449/0x710 [ 3589.037336][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.037336][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.037336][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.037336][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.037336][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.037336][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.037336][ T10] [ 3589.038998][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3589.039259][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3589.039259][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.039259][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.039259][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.039259][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.039259][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.039259][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.039259][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.039259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.039259][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.039259][ T10] netlink_unicast+0x449/0x710 [ 3589.039259][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.039259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.039259][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.039259][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.039259][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.039259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.039259][ T10] [ 3589.041228][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3589.041228][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.041228][ T10] ipv6_find_idev+0x102/0x170 [ 3589.041228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.041228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.041228][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.041228][ T10] netlink_unicast+0x449/0x710 [ 3589.041228][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.041228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.041228][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.041228][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.041228][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.041228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.041228][ T10] [ 3589.042740][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3589.042740][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.042740][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.042740][ T10] ipv6_find_idev+0x102/0x170 [ 3589.042740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.042740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.042740][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.042740][ T10] netlink_unicast+0x449/0x710 [ 3589.042740][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.042740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.042740][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.042740][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.042740][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.042740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.042740][ T10] [ 3589.044406][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3589.044663][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3589.044663][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.044663][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.044663][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.044663][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.044663][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.044663][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.044663][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.044663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.044663][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.044663][ T10] netlink_unicast+0x449/0x710 [ 3589.044663][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.044663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.044663][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.044663][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.044663][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.044663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.044663][ T10] [ 3589.046621][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3589.046621][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.046621][ T10] ipv6_find_idev+0x102/0x170 [ 3589.046621][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.046621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.046621][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.046621][ T10] netlink_unicast+0x449/0x710 [ 3589.046621][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.046621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.046621][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.046621][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.046621][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.046621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.046621][ T10] [ 3589.048152][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3589.048152][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.048152][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.048152][ T10] ipv6_find_idev+0x102/0x170 [ 3589.048152][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.048152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.048152][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.048152][ T10] netlink_unicast+0x449/0x710 [ 3589.048152][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.048152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.048152][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.048152][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.048152][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.048152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.048152][ T10] [ 3589.050190][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3589.050452][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3589.050452][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.050452][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.050452][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.050452][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.050452][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.050452][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.050452][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.050452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.050452][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.050452][ T10] netlink_unicast+0x449/0x710 [ 3589.050452][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.050452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.050452][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.050452][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.050452][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.050452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.050452][ T10] [ 3589.052403][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3589.052403][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.052403][ T10] ipv6_find_idev+0x102/0x170 [ 3589.052403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.052403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.052403][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.052403][ T10] netlink_unicast+0x449/0x710 [ 3589.052403][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.052403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.052403][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.052403][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.052403][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.052403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.052403][ T10] [ 3589.053914][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3589.053914][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.053914][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.053914][ T10] ipv6_find_idev+0x102/0x170 [ 3589.053914][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.053914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.053914][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.053914][ T10] netlink_unicast+0x449/0x710 [ 3589.053914][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.053914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.053914][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.053914][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.053914][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.053914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.053914][ T10] [ 3589.055616][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3589.055932][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3589.055932][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.055932][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.055932][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.055932][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.055932][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.055932][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.055932][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.055932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.055932][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.055932][ T10] netlink_unicast+0x449/0x710 [ 3589.055932][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.055932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.055932][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.055932][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.055932][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.055932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.055932][ T10] [ 3589.058260][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3589.058260][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.058260][ T10] ipv6_find_idev+0x102/0x170 [ 3589.058260][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.058260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.058260][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.058260][ T10] netlink_unicast+0x449/0x710 [ 3589.058260][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.058260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.058260][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.058260][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.058260][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.058260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.058260][ T10] [ 3589.059949][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3589.059949][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.059949][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.059949][ T10] ipv6_find_idev+0x102/0x170 [ 3589.059949][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.059949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.059949][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.059949][ T10] netlink_unicast+0x449/0x710 [ 3589.059949][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.059949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.059949][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.059949][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.059949][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.059949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.059949][ T10] [ 3589.061813][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3589.062071][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3589.062071][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.062071][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.062071][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.062071][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.062071][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.062071][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.062071][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.062071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.062071][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.062071][ T10] netlink_unicast+0x449/0x710 [ 3589.062071][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.062071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.062071][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.062071][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.062071][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.062071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.062071][ T10] [ 3589.064278][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3589.064278][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.064278][ T10] ipv6_find_idev+0x102/0x170 [ 3589.064278][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.064278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.064278][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.064278][ T10] netlink_unicast+0x449/0x710 [ 3589.064278][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.064278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.064278][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.064278][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.064278][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.064278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.064278][ T10] [ 3589.065965][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3589.065965][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.065965][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.065965][ T10] ipv6_find_idev+0x102/0x170 [ 3589.065965][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.065965][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.065965][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.065965][ T10] netlink_unicast+0x449/0x710 [ 3589.065965][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.065965][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.065965][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.065965][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.065965][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.065965][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.065965][ T10] [ 3589.067832][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3589.068091][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3589.068091][ T10] netdev_get_by_index+0x5e/0x80 [ 3589.068091][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3589.068091][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3589.068091][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3589.068091][ T10] ipv6_add_addr+0x411/0x2000 [ 3589.068091][ T10] inet6_addr_add+0x30e/0xa40 [ 3589.068091][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3589.068091][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.068091][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.068091][ T10] netlink_unicast+0x449/0x710 [ 3589.068091][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.068091][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.068091][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.068091][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.068091][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.068091][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.068091][ T10] [ 3589.070289][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3589.070289][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3589.070289][ T10] ipv6_find_idev+0x102/0x170 [ 3589.070289][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.070289][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.070289][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.070289][ T10] netlink_unicast+0x449/0x710 [ 3589.070289][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.070289][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.070289][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.070289][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.070289][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.070289][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.070289][ T10] [ 3589.071968][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3589.071968][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3589.071968][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3589.071968][ T10] ipv6_find_idev+0x102/0x170 [ 3589.071968][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3589.071968][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3589.071968][ T10] netlink_rcv_skb+0x130/0x360 [ 3589.071968][ T10] netlink_unicast+0x449/0x710 [ 3589.071968][ T10] netlink_sendmsg+0x723/0xbe0 [ 3589.071968][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3589.071968][ T10] ___sys_sendmsg+0xee/0x170 [ 3589.071968][ T10] __sys_sendmsg+0xcd/0x170 [ 3589.071968][ T10] do_syscall_64+0xc6/0x1e0 [ 3589.071968][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3589.071968][ T10] [ 3599.315769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3599.316203][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3599.316203][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.316203][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.316203][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.316203][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.316203][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.316203][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.316203][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.316203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.316203][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.316203][ T10] netlink_unicast+0x449/0x710 [ 3599.316203][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.316203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.316203][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.316203][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.316203][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.316203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.316203][ T10] [ 3599.318198][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3599.318198][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.318198][ T10] ipv6_find_idev+0x102/0x170 [ 3599.318198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.318198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.318198][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.318198][ T10] netlink_unicast+0x449/0x710 [ 3599.318198][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.318198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.318198][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.318198][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.318198][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.318198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.318198][ T10] [ 3599.319716][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3599.319716][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.319716][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.319716][ T10] ipv6_find_idev+0x102/0x170 [ 3599.319716][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.319716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.319716][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.319716][ T10] netlink_unicast+0x449/0x710 [ 3599.319716][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.319716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.319716][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.319716][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.319716][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.319716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.319716][ T10] [ 3599.321378][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3599.321642][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3599.321642][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.321642][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.321642][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.321642][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.321642][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.321642][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.321642][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.321642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.321642][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.321642][ T10] netlink_unicast+0x449/0x710 [ 3599.321642][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.321642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.321642][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.321642][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.321642][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.321642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.321642][ T10] [ 3599.323600][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3599.323600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.323600][ T10] ipv6_find_idev+0x102/0x170 [ 3599.323600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.323600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.323600][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.323600][ T10] netlink_unicast+0x449/0x710 [ 3599.323600][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.323600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.323600][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.323600][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.323600][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.323600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.323600][ T10] [ 3599.325106][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3599.325106][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.325106][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.325106][ T10] ipv6_find_idev+0x102/0x170 [ 3599.325106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.325106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.325106][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.325106][ T10] netlink_unicast+0x449/0x710 [ 3599.325106][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.325106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.325106][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.325106][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.325106][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.325106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.325106][ T10] [ 3599.326753][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3599.327018][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3599.327018][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.327018][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.327018][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.327018][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.327018][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.327018][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.327018][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.327018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.327018][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.327018][ T10] netlink_unicast+0x449/0x710 [ 3599.327018][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.327018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.327018][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.327018][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.327018][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.327018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.327018][ T10] [ 3599.328974][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3599.328974][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.328974][ T10] ipv6_find_idev+0x102/0x170 [ 3599.328974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.328974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.328974][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.328974][ T10] netlink_unicast+0x449/0x710 [ 3599.328974][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.328974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.328974][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.328974][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.328974][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.328974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.328974][ T10] [ 3599.330485][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3599.330485][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.330485][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.330485][ T10] ipv6_find_idev+0x102/0x170 [ 3599.330485][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.330485][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.330485][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.330485][ T10] netlink_unicast+0x449/0x710 [ 3599.330485][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.330485][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.330485][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.330485][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.330485][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.330485][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.330485][ T10] [ 3599.332146][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3599.332402][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3599.332402][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.332402][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.332402][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.332402][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.332402][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.332402][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.332402][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.332402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.332402][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.332402][ T10] netlink_unicast+0x449/0x710 [ 3599.332402][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.332402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.332402][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.332402][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.332402][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.332402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.332402][ T10] [ 3599.334358][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3599.334358][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.334358][ T10] ipv6_find_idev+0x102/0x170 [ 3599.334358][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.334358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.334358][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.334358][ T10] netlink_unicast+0x449/0x710 [ 3599.334358][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.334358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.334358][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.334358][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.334358][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.334358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.334358][ T10] [ 3599.335875][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3599.335875][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.335875][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.335875][ T10] ipv6_find_idev+0x102/0x170 [ 3599.335875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.335875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.335875][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.335875][ T10] netlink_unicast+0x449/0x710 [ 3599.335875][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.335875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.335875][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.335875][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.335875][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.335875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.335875][ T10] [ 3599.337572][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3599.337882][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3599.337882][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.337882][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.337882][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.337882][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.337882][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.337882][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.337882][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.337882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.337882][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.337882][ T10] netlink_unicast+0x449/0x710 [ 3599.337882][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.337882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.337882][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.337882][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.337882][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.337882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.337882][ T10] [ 3599.339828][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3599.339828][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.339828][ T10] ipv6_find_idev+0x102/0x170 [ 3599.339828][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.339828][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.339828][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.339828][ T10] netlink_unicast+0x449/0x710 [ 3599.339828][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.339828][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.339828][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.339828][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.339828][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.339828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.339828][ T10] [ 3599.341338][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3599.341338][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.341338][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.341338][ T10] ipv6_find_idev+0x102/0x170 [ 3599.341338][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.341338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.341338][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.341338][ T10] netlink_unicast+0x449/0x710 [ 3599.341338][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.341338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.341338][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.341338][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.341338][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.341338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.341338][ T10] [ 3599.343343][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3599.343630][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3599.343630][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.343630][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.343630][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.343630][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.343630][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.343630][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.343630][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.343630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.343630][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.343630][ T10] netlink_unicast+0x449/0x710 [ 3599.343630][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.343630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.343630][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.343630][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.343630][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.343630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.343630][ T10] [ 3599.345740][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3599.345740][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.345740][ T10] ipv6_find_idev+0x102/0x170 [ 3599.345740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.345740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.345740][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.345740][ T10] netlink_unicast+0x449/0x710 [ 3599.345740][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.345740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.345740][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.345740][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.345740][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.345740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.345740][ T10] [ 3599.347461][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3599.347461][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.347461][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.347461][ T10] ipv6_find_idev+0x102/0x170 [ 3599.347461][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.347461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.347461][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.347461][ T10] netlink_unicast+0x449/0x710 [ 3599.347461][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.347461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.347461][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.347461][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.347461][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.347461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.347461][ T10] [ 3599.349375][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3599.349639][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3599.349639][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.349639][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.349639][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.349639][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.349639][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.349639][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.349639][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.349639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.349639][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.349639][ T10] netlink_unicast+0x449/0x710 [ 3599.349639][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.349639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.349639][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.349639][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.349639][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.349639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.349639][ T10] [ 3599.351795][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3599.351795][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.351795][ T10] ipv6_find_idev+0x102/0x170 [ 3599.351795][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.351795][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.351795][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.351795][ T10] netlink_unicast+0x449/0x710 [ 3599.351795][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.351795][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.351795][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.351795][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.351795][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.351795][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.351795][ T10] [ 3599.353553][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3599.353553][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.353553][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.353553][ T10] ipv6_find_idev+0x102/0x170 [ 3599.353553][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.353553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.353553][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.353553][ T10] netlink_unicast+0x449/0x710 [ 3599.353553][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.353553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.353553][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.353553][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.353553][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.353553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.353553][ T10] [ 3599.355406][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3599.355667][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3599.355667][ T10] netdev_get_by_index+0x5e/0x80 [ 3599.355667][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3599.355667][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3599.355667][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3599.355667][ T10] ipv6_add_addr+0x411/0x2000 [ 3599.355667][ T10] inet6_addr_add+0x30e/0xa40 [ 3599.355667][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.355667][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.355667][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.355667][ T10] netlink_unicast+0x449/0x710 [ 3599.355667][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.355667][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.355667][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.355667][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.355667][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.355667][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.355667][ T10] [ 3599.357849][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3599.357849][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3599.357849][ T10] ipv6_find_idev+0x102/0x170 [ 3599.357849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.357849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.357849][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.357849][ T10] netlink_unicast+0x449/0x710 [ 3599.357849][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.357849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.357849][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.357849][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.357849][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.357849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.357849][ T10] [ 3599.359531][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3599.359531][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3599.359531][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3599.359531][ T10] ipv6_find_idev+0x102/0x170 [ 3599.359531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.359531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.359531][ T10] netlink_rcv_skb+0x130/0x360 [ 3599.359531][ T10] netlink_unicast+0x449/0x710 [ 3599.359531][ T10] netlink_sendmsg+0x723/0xbe0 [ 3599.359531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3599.359531][ T10] ___sys_sendmsg+0xee/0x170 [ 3599.359531][ T10] __sys_sendmsg+0xcd/0x170 [ 3599.359531][ T10] do_syscall_64+0xc6/0x1e0 [ 3599.359531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.359531][ T10] [ 3609.403772][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3609.404193][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3609.404193][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.404193][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.404193][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.404193][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.404193][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.404193][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.404193][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.404193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.404193][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.404193][ T10] netlink_unicast+0x449/0x710 [ 3609.404193][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.404193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.404193][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.404193][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.404193][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.404193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.404193][ T10] [ 3609.406187][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3609.406187][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.406187][ T10] ipv6_find_idev+0x102/0x170 [ 3609.406187][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.406187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.406187][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.406187][ T10] netlink_unicast+0x449/0x710 [ 3609.406187][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.406187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.406187][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.406187][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.406187][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.406187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.406187][ T10] [ 3609.407725][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3609.407725][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.407725][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.407725][ T10] ipv6_find_idev+0x102/0x170 [ 3609.407725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.407725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.407725][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.407725][ T10] netlink_unicast+0x449/0x710 [ 3609.407725][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.407725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.407725][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.407725][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.407725][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.407725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.407725][ T10] [ 3609.409408][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3609.409674][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3609.409674][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.409674][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.409674][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.409674][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.409674][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.409674][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.409674][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.409674][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.409674][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.409674][ T10] netlink_unicast+0x449/0x710 [ 3609.409674][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.409674][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.409674][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.409674][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.409674][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.409674][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.409674][ T10] [ 3609.411748][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3609.411748][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.411748][ T10] ipv6_find_idev+0x102/0x170 [ 3609.411748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.411748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.411748][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.411748][ T10] netlink_unicast+0x449/0x710 [ 3609.411748][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.411748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.411748][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.411748][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.411748][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.411748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.411748][ T10] [ 3609.413276][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3609.413276][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.413276][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.413276][ T10] ipv6_find_idev+0x102/0x170 [ 3609.413276][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.413276][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.413276][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.413276][ T10] netlink_unicast+0x449/0x710 [ 3609.413276][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.413276][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.413276][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.413276][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.413276][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.413276][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.413276][ T10] [ 3609.414926][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3609.415200][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3609.415200][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.415200][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.415200][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.415200][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.415200][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.415200][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.415200][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.415200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.415200][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.415200][ T10] netlink_unicast+0x449/0x710 [ 3609.415200][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.415200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.415200][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.415200][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.415200][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.415200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.415200][ T10] [ 3609.417157][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3609.417157][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.417157][ T10] ipv6_find_idev+0x102/0x170 [ 3609.417157][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.417157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.417157][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.417157][ T10] netlink_unicast+0x449/0x710 [ 3609.417157][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.417157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.417157][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.417157][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.417157][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.417157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.417157][ T10] [ 3609.418677][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3609.418677][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.418677][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.418677][ T10] ipv6_find_idev+0x102/0x170 [ 3609.418677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.418677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.418677][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.418677][ T10] netlink_unicast+0x449/0x710 [ 3609.418677][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.418677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.418677][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.418677][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.418677][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.418677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.418677][ T10] [ 3609.420327][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3609.420589][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3609.420589][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.420589][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.420589][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.420589][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.420589][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.420589][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.420589][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.420589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.420589][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.420589][ T10] netlink_unicast+0x449/0x710 [ 3609.420589][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.420589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.420589][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.420589][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.420589][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.420589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.420589][ T10] [ 3609.422539][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3609.422539][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.422539][ T10] ipv6_find_idev+0x102/0x170 [ 3609.422539][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.422539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.422539][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.422539][ T10] netlink_unicast+0x449/0x710 [ 3609.422539][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.422539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.422539][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.422539][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.422539][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.422539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.422539][ T10] [ 3609.424053][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3609.424053][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.424053][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.424053][ T10] ipv6_find_idev+0x102/0x170 [ 3609.424053][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.424053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.424053][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.424053][ T10] netlink_unicast+0x449/0x710 [ 3609.424053][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.424053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.424053][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.424053][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.424053][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.424053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.424053][ T10] [ 3609.425704][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3609.425971][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3609.425971][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.425971][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.425971][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.425971][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.425971][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.425971][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.425971][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.425971][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.425971][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.425971][ T10] netlink_unicast+0x449/0x710 [ 3609.425971][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.425971][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.425971][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.425971][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.425971][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.425971][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.425971][ T10] [ 3609.427930][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3609.427930][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.427930][ T10] ipv6_find_idev+0x102/0x170 [ 3609.427930][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.427930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.427930][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.427930][ T10] netlink_unicast+0x449/0x710 [ 3609.427930][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.427930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.427930][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.427930][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.427930][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.427930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.427930][ T10] [ 3609.429500][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3609.429500][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.429500][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.429500][ T10] ipv6_find_idev+0x102/0x170 [ 3609.429500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.429500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.429500][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.429500][ T10] netlink_unicast+0x449/0x710 [ 3609.429500][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.429500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.429500][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.429500][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.429500][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.429500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.429500][ T10] [ 3609.431442][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3609.431755][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3609.431755][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.431755][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.431755][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.431755][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.431755][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.431755][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.431755][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.431755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.431755][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.431755][ T10] netlink_unicast+0x449/0x710 [ 3609.431755][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.431755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.431755][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.431755][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.431755][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.431755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.431755][ T10] [ 3609.433903][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3609.433903][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.433903][ T10] ipv6_find_idev+0x102/0x170 [ 3609.433903][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.433903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.433903][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.433903][ T10] netlink_unicast+0x449/0x710 [ 3609.433903][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.433903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.433903][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.433903][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.433903][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.433903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.433903][ T10] [ 3609.435582][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3609.435582][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.435582][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.435582][ T10] ipv6_find_idev+0x102/0x170 [ 3609.435582][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.435582][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.435582][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.435582][ T10] netlink_unicast+0x449/0x710 [ 3609.435582][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.435582][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.435582][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.435582][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.435582][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.435582][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.435582][ T10] [ 3609.437479][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3609.437798][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3609.437798][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.437798][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.437798][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.437798][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.437798][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.437798][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.437798][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.437798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.437798][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.437798][ T10] netlink_unicast+0x449/0x710 [ 3609.437798][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.437798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.437798][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.437798][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.437798][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.437798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.437798][ T10] [ 3609.439957][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3609.439957][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.439957][ T10] ipv6_find_idev+0x102/0x170 [ 3609.439957][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.439957][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.439957][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.439957][ T10] netlink_unicast+0x449/0x710 [ 3609.439957][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.439957][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.439957][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.439957][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.439957][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.439957][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.439957][ T10] [ 3609.441648][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3609.441648][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.441648][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.441648][ T10] ipv6_find_idev+0x102/0x170 [ 3609.441648][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.441648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.441648][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.441648][ T10] netlink_unicast+0x449/0x710 [ 3609.441648][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.441648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.441648][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.441648][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.441648][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.441648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.441648][ T10] [ 3609.443656][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3609.443920][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3609.443920][ T10] netdev_get_by_index+0x5e/0x80 [ 3609.443920][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3609.443920][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3609.443920][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3609.443920][ T10] ipv6_add_addr+0x411/0x2000 [ 3609.443920][ T10] inet6_addr_add+0x30e/0xa40 [ 3609.443920][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.443920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.443920][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.443920][ T10] netlink_unicast+0x449/0x710 [ 3609.443920][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.443920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.443920][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.443920][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.443920][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.443920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.443920][ T10] [ 3609.446309][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3609.446309][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3609.446309][ T10] ipv6_find_idev+0x102/0x170 [ 3609.446309][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.446309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.446309][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.446309][ T10] netlink_unicast+0x449/0x710 [ 3609.446309][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.446309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.446309][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.446309][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.446309][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.446309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.446309][ T10] [ 3609.447961][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3609.447961][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3609.447961][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3609.447961][ T10] ipv6_find_idev+0x102/0x170 [ 3609.447961][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.447961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.447961][ T10] netlink_rcv_skb+0x130/0x360 [ 3609.447961][ T10] netlink_unicast+0x449/0x710 [ 3609.447961][ T10] netlink_sendmsg+0x723/0xbe0 [ 3609.447961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3609.447961][ T10] ___sys_sendmsg+0xee/0x170 [ 3609.447961][ T10] __sys_sendmsg+0xcd/0x170 [ 3609.447961][ T10] do_syscall_64+0xc6/0x1e0 [ 3609.447961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.447961][ T10] [ 3619.691764][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3619.692195][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3619.692195][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.692195][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.692195][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.692195][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.692195][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.692195][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.692195][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.692195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.692195][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.692195][ T10] netlink_unicast+0x449/0x710 [ 3619.692195][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.692195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.692195][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.692195][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.692195][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.692195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.692195][ T10] [ 3619.694182][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3619.694182][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.694182][ T10] ipv6_find_idev+0x102/0x170 [ 3619.694182][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.694182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.694182][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.694182][ T10] netlink_unicast+0x449/0x710 [ 3619.694182][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.694182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.694182][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.694182][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.694182][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.694182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.694182][ T10] [ 3619.695703][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3619.695703][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.695703][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.695703][ T10] ipv6_find_idev+0x102/0x170 [ 3619.695703][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.695703][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.695703][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.695703][ T10] netlink_unicast+0x449/0x710 [ 3619.695703][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.695703][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.695703][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.695703][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.695703][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.695703][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.695703][ T10] [ 3619.697370][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3619.697633][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3619.697633][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.697633][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.697633][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.697633][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.697633][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.697633][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.697633][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.697633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.697633][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.697633][ T10] netlink_unicast+0x449/0x710 [ 3619.697633][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.697633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.697633][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.697633][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.697633][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.697633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.697633][ T10] [ 3619.699594][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3619.699594][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.699594][ T10] ipv6_find_idev+0x102/0x170 [ 3619.699594][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.699594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.699594][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.699594][ T10] netlink_unicast+0x449/0x710 [ 3619.699594][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.699594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.699594][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.699594][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.699594][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.699594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.699594][ T10] [ 3619.701105][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3619.701105][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.701105][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.701105][ T10] ipv6_find_idev+0x102/0x170 [ 3619.701105][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.701105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.701105][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.701105][ T10] netlink_unicast+0x449/0x710 [ 3619.701105][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.701105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.701105][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.701105][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.701105][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.701105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.701105][ T10] [ 3619.702765][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3619.703026][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3619.703026][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.703026][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.703026][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.703026][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.703026][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.703026][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.703026][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.703026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.703026][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.703026][ T10] netlink_unicast+0x449/0x710 [ 3619.703026][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.703026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.703026][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.703026][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.703026][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.703026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.703026][ T10] [ 3619.704994][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3619.704994][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.704994][ T10] ipv6_find_idev+0x102/0x170 [ 3619.704994][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.704994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.704994][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.704994][ T10] netlink_unicast+0x449/0x710 [ 3619.704994][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.704994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.704994][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.704994][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.704994][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.704994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.704994][ T10] [ 3619.706504][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3619.706504][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.706504][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.706504][ T10] ipv6_find_idev+0x102/0x170 [ 3619.706504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.706504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.706504][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.706504][ T10] netlink_unicast+0x449/0x710 [ 3619.706504][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.706504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.706504][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.706504][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.706504][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.706504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.706504][ T10] [ 3619.708159][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3619.708423][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3619.708423][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.708423][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.708423][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.708423][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.708423][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.708423][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.708423][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.708423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.708423][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.708423][ T10] netlink_unicast+0x449/0x710 [ 3619.708423][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.708423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.708423][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.708423][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.708423][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.708423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.708423][ T10] [ 3619.710390][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3619.710390][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.710390][ T10] ipv6_find_idev+0x102/0x170 [ 3619.710390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.710390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.710390][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.710390][ T10] netlink_unicast+0x449/0x710 [ 3619.710390][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.710390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.710390][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.710390][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.710390][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.710390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.710390][ T10] [ 3619.711900][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3619.711900][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.711900][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.711900][ T10] ipv6_find_idev+0x102/0x170 [ 3619.711900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.711900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.711900][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.711900][ T10] netlink_unicast+0x449/0x710 [ 3619.711900][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.711900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.711900][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.711900][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.711900][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.711900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.711900][ T10] [ 3619.713971][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3619.714229][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3619.714229][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.714229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.714229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.714229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.714229][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.714229][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.714229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.714229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.714229][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.714229][ T10] netlink_unicast+0x449/0x710 [ 3619.714229][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.714229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.714229][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.714229][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.714229][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.714229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.714229][ T10] [ 3619.716184][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3619.716184][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.716184][ T10] ipv6_find_idev+0x102/0x170 [ 3619.716184][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.716184][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.716184][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.716184][ T10] netlink_unicast+0x449/0x710 [ 3619.716184][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.716184][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.716184][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.716184][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.716184][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.716184][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.716184][ T10] [ 3619.717697][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3619.717697][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.717697][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.717697][ T10] ipv6_find_idev+0x102/0x170 [ 3619.717697][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.717697][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.717697][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.717697][ T10] netlink_unicast+0x449/0x710 [ 3619.717697][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.717697][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.717697][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.717697][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.717697][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.717697][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.717697][ T10] [ 3619.719391][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3619.719652][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3619.719652][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.719652][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.719652][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.719652][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.719652][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.719652][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.719652][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.719652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.719652][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.719652][ T10] netlink_unicast+0x449/0x710 [ 3619.719652][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.719652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.719652][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.719652][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.719652][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.719652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.719652][ T10] [ 3619.721728][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3619.721728][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.721728][ T10] ipv6_find_idev+0x102/0x170 [ 3619.721728][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.721728][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.721728][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.721728][ T10] netlink_unicast+0x449/0x710 [ 3619.721728][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.721728][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.721728][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.721728][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.721728][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.721728][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.721728][ T10] [ 3619.723478][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3619.723478][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.723478][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.723478][ T10] ipv6_find_idev+0x102/0x170 [ 3619.723478][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.723478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.723478][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.723478][ T10] netlink_unicast+0x449/0x710 [ 3619.723478][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.723478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.723478][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.723478][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.723478][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.723478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.723478][ T10] [ 3619.725382][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3619.725658][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3619.725658][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.725658][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.725658][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.725658][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.725658][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.725658][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.725658][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.725658][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.725658][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.725658][ T10] netlink_unicast+0x449/0x710 [ 3619.725658][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.725658][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.725658][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.725658][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.725658][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.725658][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.725658][ T10] [ 3619.727849][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3619.727849][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.727849][ T10] ipv6_find_idev+0x102/0x170 [ 3619.727849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.727849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.727849][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.727849][ T10] netlink_unicast+0x449/0x710 [ 3619.727849][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.727849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.727849][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.727849][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.727849][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.727849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.727849][ T10] [ 3619.729531][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3619.729531][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.729531][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.729531][ T10] ipv6_find_idev+0x102/0x170 [ 3619.729531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.729531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.729531][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.729531][ T10] netlink_unicast+0x449/0x710 [ 3619.729531][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.729531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.729531][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.729531][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.729531][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.729531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.729531][ T10] [ 3619.731405][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3619.731672][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3619.731672][ T10] netdev_get_by_index+0x5e/0x80 [ 3619.731672][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3619.731672][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3619.731672][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3619.731672][ T10] ipv6_add_addr+0x411/0x2000 [ 3619.731672][ T10] inet6_addr_add+0x30e/0xa40 [ 3619.731672][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.731672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.731672][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.731672][ T10] netlink_unicast+0x449/0x710 [ 3619.731672][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.731672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.731672][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.731672][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.731672][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.731672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.731672][ T10] [ 3619.733816][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3619.733816][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3619.733816][ T10] ipv6_find_idev+0x102/0x170 [ 3619.733816][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.733816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.733816][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.733816][ T10] netlink_unicast+0x449/0x710 [ 3619.733816][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.733816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.733816][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.733816][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.733816][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.733816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.733816][ T10] [ 3619.735393][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3619.735393][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3619.735393][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3619.735393][ T10] ipv6_find_idev+0x102/0x170 [ 3619.735393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.735393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.735393][ T10] netlink_rcv_skb+0x130/0x360 [ 3619.735393][ T10] netlink_unicast+0x449/0x710 [ 3619.735393][ T10] netlink_sendmsg+0x723/0xbe0 [ 3619.735393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3619.735393][ T10] ___sys_sendmsg+0xee/0x170 [ 3619.735393][ T10] __sys_sendmsg+0xcd/0x170 [ 3619.735393][ T10] do_syscall_64+0xc6/0x1e0 [ 3619.735393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.735393][ T10] [ 3629.979769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3629.980663][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3629.980663][ T10] netdev_get_by_index+0x5e/0x80 [ 3629.980663][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3629.980663][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3629.980663][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3629.980663][ T10] ipv6_add_addr+0x411/0x2000 [ 3629.980663][ T10] inet6_addr_add+0x30e/0xa40 [ 3629.980663][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3629.980663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.980663][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.980663][ T10] netlink_unicast+0x449/0x710 [ 3629.980663][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.980663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.980663][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.980663][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.980663][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.980663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.980663][ T10] [ 3629.982704][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3629.982704][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3629.982704][ T10] ipv6_find_idev+0x102/0x170 [ 3629.982704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.982704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.982704][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.982704][ T10] netlink_unicast+0x449/0x710 [ 3629.982704][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.982704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.982704][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.982704][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.982704][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.982704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.982704][ T10] [ 3629.984251][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3629.984251][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3629.984251][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3629.984251][ T10] ipv6_find_idev+0x102/0x170 [ 3629.984251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.984251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.984251][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.984251][ T10] netlink_unicast+0x449/0x710 [ 3629.984251][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.984251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.984251][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.984251][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.984251][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.984251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.984251][ T10] [ 3629.985962][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3629.986227][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3629.986227][ T10] netdev_get_by_index+0x5e/0x80 [ 3629.986227][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3629.986227][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3629.986227][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3629.986227][ T10] ipv6_add_addr+0x411/0x2000 [ 3629.986227][ T10] inet6_addr_add+0x30e/0xa40 [ 3629.986227][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3629.986227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.986227][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.986227][ T10] netlink_unicast+0x449/0x710 [ 3629.986227][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.986227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.986227][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.986227][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.986227][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.986227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.986227][ T10] [ 3629.988211][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3629.988211][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3629.988211][ T10] ipv6_find_idev+0x102/0x170 [ 3629.988211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.988211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.988211][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.988211][ T10] netlink_unicast+0x449/0x710 [ 3629.988211][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.988211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.988211][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.988211][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.988211][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.988211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.988211][ T10] [ 3629.989768][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3629.989768][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3629.989768][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3629.989768][ T10] ipv6_find_idev+0x102/0x170 [ 3629.989768][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.989768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.989768][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.989768][ T10] netlink_unicast+0x449/0x710 [ 3629.989768][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.989768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.989768][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.989768][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.989768][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.989768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.989768][ T10] [ 3629.991459][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3629.991760][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3629.991760][ T10] netdev_get_by_index+0x5e/0x80 [ 3629.991760][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3629.991760][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3629.991760][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3629.991760][ T10] ipv6_add_addr+0x411/0x2000 [ 3629.991760][ T10] inet6_addr_add+0x30e/0xa40 [ 3629.991760][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3629.991760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.991760][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.991760][ T10] netlink_unicast+0x449/0x710 [ 3629.991760][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.991760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.991760][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.991760][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.991760][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.991760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.991760][ T10] [ 3629.993789][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3629.993789][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3629.993789][ T10] ipv6_find_idev+0x102/0x170 [ 3629.993789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.993789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.993789][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.993789][ T10] netlink_unicast+0x449/0x710 [ 3629.993789][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.993789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.993789][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.993789][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.993789][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.993789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.993789][ T10] [ 3629.995298][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3629.995298][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3629.995298][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3629.995298][ T10] ipv6_find_idev+0x102/0x170 [ 3629.995298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.995298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.995298][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.995298][ T10] netlink_unicast+0x449/0x710 [ 3629.995298][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.995298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.995298][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.995298][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.995298][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.995298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.995298][ T10] [ 3629.996955][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3629.997215][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3629.997215][ T10] netdev_get_by_index+0x5e/0x80 [ 3629.997215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3629.997215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3629.997215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3629.997215][ T10] ipv6_add_addr+0x411/0x2000 [ 3629.997215][ T10] inet6_addr_add+0x30e/0xa40 [ 3629.997215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3629.997215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.997215][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.997215][ T10] netlink_unicast+0x449/0x710 [ 3629.997215][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.997215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.997215][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.997215][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.997215][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.997215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.997215][ T10] [ 3629.999229][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3629.999229][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3629.999229][ T10] ipv6_find_idev+0x102/0x170 [ 3629.999229][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.999229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.999229][ T10] netlink_rcv_skb+0x130/0x360 [ 3629.999229][ T10] netlink_unicast+0x449/0x710 [ 3629.999229][ T10] netlink_sendmsg+0x723/0xbe0 [ 3629.999229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3629.999229][ T10] ___sys_sendmsg+0xee/0x170 [ 3629.999229][ T10] __sys_sendmsg+0xcd/0x170 [ 3629.999229][ T10] do_syscall_64+0xc6/0x1e0 [ 3629.999229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.999229][ T10] [ 3630.000755][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3630.000755][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3630.000755][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3630.000755][ T10] ipv6_find_idev+0x102/0x170 [ 3630.000755][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.000755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.000755][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.000755][ T10] netlink_unicast+0x449/0x710 [ 3630.000755][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.000755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.000755][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.000755][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.000755][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.000755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.000755][ T10] [ 3630.003236][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3630.003507][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3630.003507][ T10] netdev_get_by_index+0x5e/0x80 [ 3630.003507][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3630.003507][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3630.003507][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3630.003507][ T10] ipv6_add_addr+0x411/0x2000 [ 3630.003507][ T10] inet6_addr_add+0x30e/0xa40 [ 3630.003507][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3630.003507][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.003507][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.003507][ T10] netlink_unicast+0x449/0x710 [ 3630.003507][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.003507][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.003507][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.003507][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.003507][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.003507][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.003507][ T10] [ 3630.005471][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3630.005471][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3630.005471][ T10] ipv6_find_idev+0x102/0x170 [ 3630.005471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.005471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.005471][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.005471][ T10] netlink_unicast+0x449/0x710 [ 3630.005471][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.005471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.005471][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.005471][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.005471][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.005471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.005471][ T10] [ 3630.007008][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3630.007008][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3630.007008][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3630.007008][ T10] ipv6_find_idev+0x102/0x170 [ 3630.007008][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.007008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.007008][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.007008][ T10] netlink_unicast+0x449/0x710 [ 3630.007008][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.007008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.007008][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.007008][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.007008][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.007008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.007008][ T10] [ 3630.008725][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3630.008987][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3630.008987][ T10] netdev_get_by_index+0x5e/0x80 [ 3630.008987][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3630.008987][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3630.008987][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3630.008987][ T10] ipv6_add_addr+0x411/0x2000 [ 3630.008987][ T10] inet6_addr_add+0x30e/0xa40 [ 3630.008987][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3630.008987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.008987][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.008987][ T10] netlink_unicast+0x449/0x710 [ 3630.008987][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.008987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.008987][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.008987][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.008987][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.008987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.008987][ T10] [ 3630.011101][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3630.011101][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3630.011101][ T10] ipv6_find_idev+0x102/0x170 [ 3630.011101][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.011101][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.011101][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.011101][ T10] netlink_unicast+0x449/0x710 [ 3630.011101][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.011101][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.011101][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.011101][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.011101][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.011101][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.011101][ T10] [ 3630.012853][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3630.012853][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3630.012853][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3630.012853][ T10] ipv6_find_idev+0x102/0x170 [ 3630.012853][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.012853][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.012853][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.012853][ T10] netlink_unicast+0x449/0x710 [ 3630.012853][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.012853][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.012853][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.012853][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.012853][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.012853][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.012853][ T10] [ 3630.014768][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3630.015039][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3630.015039][ T10] netdev_get_by_index+0x5e/0x80 [ 3630.015039][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3630.015039][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3630.015039][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3630.015039][ T10] ipv6_add_addr+0x411/0x2000 [ 3630.015039][ T10] inet6_addr_add+0x30e/0xa40 [ 3630.015039][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3630.015039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.015039][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.015039][ T10] netlink_unicast+0x449/0x710 [ 3630.015039][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.015039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.015039][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.015039][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.015039][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.015039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.015039][ T10] [ 3630.017242][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3630.017242][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3630.017242][ T10] ipv6_find_idev+0x102/0x170 [ 3630.017242][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.017242][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.017242][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.017242][ T10] netlink_unicast+0x449/0x710 [ 3630.017242][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.017242][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.017242][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.017242][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.017242][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.017242][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.017242][ T10] [ 3630.018980][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3630.018980][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3630.018980][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3630.018980][ T10] ipv6_find_idev+0x102/0x170 [ 3630.018980][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.018980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.018980][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.018980][ T10] netlink_unicast+0x449/0x710 [ 3630.018980][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.018980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.018980][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.018980][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.018980][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.018980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.018980][ T10] [ 3630.020858][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3630.021120][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3630.021120][ T10] netdev_get_by_index+0x5e/0x80 [ 3630.021120][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3630.021120][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3630.021120][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3630.021120][ T10] ipv6_add_addr+0x411/0x2000 [ 3630.021120][ T10] inet6_addr_add+0x30e/0xa40 [ 3630.021120][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3630.021120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.021120][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.021120][ T10] netlink_unicast+0x449/0x710 [ 3630.021120][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.021120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.021120][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.021120][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.021120][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.021120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.021120][ T10] [ 3630.023430][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3630.023430][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3630.023430][ T10] ipv6_find_idev+0x102/0x170 [ 3630.023430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.023430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.023430][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.023430][ T10] netlink_unicast+0x449/0x710 [ 3630.023430][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.023430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.023430][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.023430][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.023430][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.023430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.023430][ T10] [ 3630.025123][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3630.025123][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3630.025123][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3630.025123][ T10] ipv6_find_idev+0x102/0x170 [ 3630.025123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3630.025123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3630.025123][ T10] netlink_rcv_skb+0x130/0x360 [ 3630.025123][ T10] netlink_unicast+0x449/0x710 [ 3630.025123][ T10] netlink_sendmsg+0x723/0xbe0 [ 3630.025123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3630.025123][ T10] ___sys_sendmsg+0xee/0x170 [ 3630.025123][ T10] __sys_sendmsg+0xcd/0x170 [ 3630.025123][ T10] do_syscall_64+0xc6/0x1e0 [ 3630.025123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3630.025123][ T10] [ 3640.267837][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3640.268791][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3640.268791][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.268791][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.268791][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.268791][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.268791][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.268791][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.268791][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.268791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.268791][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.268791][ T10] netlink_unicast+0x449/0x710 [ 3640.268791][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.268791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.268791][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.268791][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.268791][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.268791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.268791][ T10] [ 3640.271108][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3640.271108][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.271108][ T10] ipv6_find_idev+0x102/0x170 [ 3640.271108][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.271108][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.271108][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.271108][ T10] netlink_unicast+0x449/0x710 [ 3640.271108][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.271108][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.271108][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.271108][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.271108][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.271108][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.271108][ T10] [ 3640.272720][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3640.272720][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.272720][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.272720][ T10] ipv6_find_idev+0x102/0x170 [ 3640.272720][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.272720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.272720][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.272720][ T10] netlink_unicast+0x449/0x710 [ 3640.272720][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.272720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.272720][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.272720][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.272720][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.272720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.272720][ T10] [ 3640.274492][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3640.274783][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3640.274783][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.274783][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.274783][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.274783][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.274783][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.274783][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.274783][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.274783][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.274783][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.274783][ T10] netlink_unicast+0x449/0x710 [ 3640.274783][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.274783][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.274783][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.274783][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.274783][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.274783][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.274783][ T10] [ 3640.276860][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3640.276860][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.276860][ T10] ipv6_find_idev+0x102/0x170 [ 3640.276860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.276860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.276860][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.276860][ T10] netlink_unicast+0x449/0x710 [ 3640.276860][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.276860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.276860][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.276860][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.276860][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.276860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.276860][ T10] [ 3640.278471][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3640.278471][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.278471][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.278471][ T10] ipv6_find_idev+0x102/0x170 [ 3640.278471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.278471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.278471][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.278471][ T10] netlink_unicast+0x449/0x710 [ 3640.278471][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.278471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.278471][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.278471][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.278471][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.278471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.278471][ T10] [ 3640.280238][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3640.280511][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3640.280511][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.280511][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.280511][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.280511][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.280511][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.280511][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.280511][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.280511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.280511][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.280511][ T10] netlink_unicast+0x449/0x710 [ 3640.280511][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.280511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.280511][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.280511][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.280511][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.280511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.280511][ T10] [ 3640.282595][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3640.282595][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.282595][ T10] ipv6_find_idev+0x102/0x170 [ 3640.282595][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.282595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.282595][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.282595][ T10] netlink_unicast+0x449/0x710 [ 3640.282595][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.282595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.282595][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.282595][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.282595][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.282595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.282595][ T10] [ 3640.284216][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3640.284216][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.284216][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.284216][ T10] ipv6_find_idev+0x102/0x170 [ 3640.284216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.284216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.284216][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.284216][ T10] netlink_unicast+0x449/0x710 [ 3640.284216][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.284216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.284216][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.284216][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.284216][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.284216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.284216][ T10] [ 3640.285999][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3640.286268][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3640.286268][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.286268][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.286268][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.286268][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.286268][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.286268][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.286268][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.286268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.286268][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.286268][ T10] netlink_unicast+0x449/0x710 [ 3640.286268][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.286268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.286268][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.286268][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.286268][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.286268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.286268][ T10] [ 3640.288363][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3640.288363][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.288363][ T10] ipv6_find_idev+0x102/0x170 [ 3640.288363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.288363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.288363][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.288363][ T10] netlink_unicast+0x449/0x710 [ 3640.288363][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.288363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.288363][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.288363][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.288363][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.288363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.288363][ T10] [ 3640.289983][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3640.289983][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.289983][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.289983][ T10] ipv6_find_idev+0x102/0x170 [ 3640.289983][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.289983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.289983][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.289983][ T10] netlink_unicast+0x449/0x710 [ 3640.289983][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.289983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.289983][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.289983][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.289983][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.289983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.289983][ T10] [ 3640.291753][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3640.292023][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3640.292023][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.292023][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.292023][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.292023][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.292023][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.292023][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.292023][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.292023][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.292023][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.292023][ T10] netlink_unicast+0x449/0x710 [ 3640.292023][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.292023][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.292023][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.292023][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.292023][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.292023][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.292023][ T10] [ 3640.294123][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3640.294123][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.294123][ T10] ipv6_find_idev+0x102/0x170 [ 3640.294123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.294123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.294123][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.294123][ T10] netlink_unicast+0x449/0x710 [ 3640.294123][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.294123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.294123][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.294123][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.294123][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.294123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.294123][ T10] [ 3640.295800][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3640.295800][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.295800][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.295800][ T10] ipv6_find_idev+0x102/0x170 [ 3640.295800][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.295800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.295800][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.295800][ T10] netlink_unicast+0x449/0x710 [ 3640.295800][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.295800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.295800][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.295800][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.295800][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.295800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.295800][ T10] [ 3640.298185][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3640.298456][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3640.298456][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.298456][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.298456][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.298456][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.298456][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.298456][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.298456][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.298456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.298456][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.298456][ T10] netlink_unicast+0x449/0x710 [ 3640.298456][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.298456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.298456][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.298456][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.298456][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.298456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.298456][ T10] [ 3640.300533][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3640.300533][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.300533][ T10] ipv6_find_idev+0x102/0x170 [ 3640.300533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.300533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.300533][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.300533][ T10] netlink_unicast+0x449/0x710 [ 3640.300533][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.300533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.300533][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.300533][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.300533][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.300533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.300533][ T10] [ 3640.302262][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3640.302262][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.302262][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.302262][ T10] ipv6_find_idev+0x102/0x170 [ 3640.302262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.302262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.302262][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.302262][ T10] netlink_unicast+0x449/0x710 [ 3640.302262][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.302262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.302262][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.302262][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.302262][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.302262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.302262][ T10] [ 3640.304202][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3640.305073][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3640.305073][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.305073][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.305073][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.305073][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.305073][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.305073][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.305073][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.305073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.305073][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.305073][ T10] netlink_unicast+0x449/0x710 [ 3640.305073][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.305073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.305073][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.305073][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.305073][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.305073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.305073][ T10] [ 3640.307333][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3640.307333][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.307333][ T10] ipv6_find_idev+0x102/0x170 [ 3640.307333][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.307333][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.307333][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.307333][ T10] netlink_unicast+0x449/0x710 [ 3640.307333][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.307333][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.307333][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.307333][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.307333][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.307333][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.307333][ T10] [ 3640.309073][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3640.309073][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.309073][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.309073][ T10] ipv6_find_idev+0x102/0x170 [ 3640.309073][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.309073][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.309073][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.309073][ T10] netlink_unicast+0x449/0x710 [ 3640.309073][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.309073][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.309073][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.309073][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.309073][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.309073][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.309073][ T10] [ 3640.311045][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3640.311320][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3640.311320][ T10] netdev_get_by_index+0x5e/0x80 [ 3640.311320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3640.311320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3640.311320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3640.311320][ T10] ipv6_add_addr+0x411/0x2000 [ 3640.311320][ T10] inet6_addr_add+0x30e/0xa40 [ 3640.311320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3640.311320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.311320][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.311320][ T10] netlink_unicast+0x449/0x710 [ 3640.311320][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.311320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.311320][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.311320][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.311320][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.311320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.311320][ T10] [ 3640.313860][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3640.313860][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3640.313860][ T10] ipv6_find_idev+0x102/0x170 [ 3640.313860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.313860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.313860][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.313860][ T10] netlink_unicast+0x449/0x710 [ 3640.313860][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.313860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.313860][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.313860][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.313860][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.313860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.313860][ T10] [ 3640.315608][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3640.315608][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3640.315608][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3640.315608][ T10] ipv6_find_idev+0x102/0x170 [ 3640.315608][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3640.315608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3640.315608][ T10] netlink_rcv_skb+0x130/0x360 [ 3640.315608][ T10] netlink_unicast+0x449/0x710 [ 3640.315608][ T10] netlink_sendmsg+0x723/0xbe0 [ 3640.315608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3640.315608][ T10] ___sys_sendmsg+0xee/0x170 [ 3640.315608][ T10] __sys_sendmsg+0xcd/0x170 [ 3640.315608][ T10] do_syscall_64+0xc6/0x1e0 [ 3640.315608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3640.315608][ T10] [ 3650.555800][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3650.556346][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3650.556346][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.556346][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.556346][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.556346][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.556346][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.556346][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.556346][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.556346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.556346][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.556346][ T10] netlink_unicast+0x449/0x710 [ 3650.556346][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.556346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.556346][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.556346][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.556346][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.556346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.556346][ T10] [ 3650.558628][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3650.558628][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.558628][ T10] ipv6_find_idev+0x102/0x170 [ 3650.558628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.558628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.558628][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.558628][ T10] netlink_unicast+0x449/0x710 [ 3650.558628][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.558628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.558628][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.558628][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.558628][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.558628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.558628][ T10] [ 3650.560403][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3650.560403][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.560403][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.560403][ T10] ipv6_find_idev+0x102/0x170 [ 3650.560403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.560403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.560403][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.560403][ T10] netlink_unicast+0x449/0x710 [ 3650.560403][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.560403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.560403][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.560403][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.560403][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.560403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.560403][ T10] [ 3650.562311][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3650.562607][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3650.562607][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.562607][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.562607][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.562607][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.562607][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.562607][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.562607][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.562607][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.562607][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.562607][ T10] netlink_unicast+0x449/0x710 [ 3650.562607][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.562607][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.562607][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.562607][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.562607][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.562607][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.562607][ T10] [ 3650.564871][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3650.564871][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.564871][ T10] ipv6_find_idev+0x102/0x170 [ 3650.564871][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.564871][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.564871][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.564871][ T10] netlink_unicast+0x449/0x710 [ 3650.564871][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.564871][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.564871][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.564871][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.564871][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.564871][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.564871][ T10] [ 3650.566591][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3650.566591][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.566591][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.566591][ T10] ipv6_find_idev+0x102/0x170 [ 3650.566591][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.566591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.566591][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.566591][ T10] netlink_unicast+0x449/0x710 [ 3650.566591][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.566591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.566591][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.566591][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.566591][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.566591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.566591][ T10] [ 3650.568476][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3650.568794][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3650.568794][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.568794][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.568794][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.568794][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.568794][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.568794][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.568794][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.568794][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.568794][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.568794][ T10] netlink_unicast+0x449/0x710 [ 3650.568794][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.568794][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.568794][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.568794][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.568794][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.568794][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.568794][ T10] [ 3650.571032][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3650.571032][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.571032][ T10] ipv6_find_idev+0x102/0x170 [ 3650.571032][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.571032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.571032][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.571032][ T10] netlink_unicast+0x449/0x710 [ 3650.571032][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.571032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.571032][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.571032][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.571032][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.571032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.571032][ T10] [ 3650.572777][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3650.572777][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.572777][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.572777][ T10] ipv6_find_idev+0x102/0x170 [ 3650.572777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.572777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.572777][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.572777][ T10] netlink_unicast+0x449/0x710 [ 3650.572777][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.572777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.572777][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.572777][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.572777][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.572777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.572777][ T10] [ 3650.574710][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3650.575007][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3650.575007][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.575007][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.575007][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.575007][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.575007][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.575007][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.575007][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.575007][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.575007][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.575007][ T10] netlink_unicast+0x449/0x710 [ 3650.575007][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.575007][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.575007][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.575007][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.575007][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.575007][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.575007][ T10] [ 3650.577246][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3650.577246][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.577246][ T10] ipv6_find_idev+0x102/0x170 [ 3650.577246][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.577246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.577246][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.577246][ T10] netlink_unicast+0x449/0x710 [ 3650.577246][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.577246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.577246][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.577246][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.577246][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.577246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.577246][ T10] [ 3650.578998][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3650.578998][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.578998][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.578998][ T10] ipv6_find_idev+0x102/0x170 [ 3650.578998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.578998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.578998][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.578998][ T10] netlink_unicast+0x449/0x710 [ 3650.578998][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.578998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.578998][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.578998][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.578998][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.578998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.578998][ T10] [ 3650.580881][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3650.581178][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3650.581178][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.581178][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.581178][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.581178][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.581178][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.581178][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.581178][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.581178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.581178][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.581178][ T10] netlink_unicast+0x449/0x710 [ 3650.581178][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.581178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.581178][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.581178][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.581178][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.581178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.581178][ T10] [ 3650.583426][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3650.583426][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.583426][ T10] ipv6_find_idev+0x102/0x170 [ 3650.583426][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.583426][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.583426][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.583426][ T10] netlink_unicast+0x449/0x710 [ 3650.583426][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.583426][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.583426][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.583426][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.583426][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.583426][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.583426][ T10] [ 3650.585209][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3650.585209][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.585209][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.585209][ T10] ipv6_find_idev+0x102/0x170 [ 3650.585209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.585209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.585209][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.585209][ T10] netlink_unicast+0x449/0x710 [ 3650.585209][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.585209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.585209][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.585209][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.585209][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.585209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.585209][ T10] [ 3650.587402][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3650.587752][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3650.587752][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.587752][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.587752][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.587752][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.587752][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.587752][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.587752][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.587752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.587752][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.587752][ T10] netlink_unicast+0x449/0x710 [ 3650.587752][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.587752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.587752][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.587752][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.587752][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.587752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.587752][ T10] [ 3650.590170][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3650.590170][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.590170][ T10] ipv6_find_idev+0x102/0x170 [ 3650.590170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.590170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.590170][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.590170][ T10] netlink_unicast+0x449/0x710 [ 3650.590170][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.590170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.590170][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.590170][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.590170][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.590170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.590170][ T10] [ 3650.592071][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3650.592071][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.592071][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.592071][ T10] ipv6_find_idev+0x102/0x170 [ 3650.592071][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.592071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.592071][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.592071][ T10] netlink_unicast+0x449/0x710 [ 3650.592071][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.592071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.592071][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.592071][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.592071][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.592071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.592071][ T10] [ 3650.594254][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3650.594591][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3650.594591][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.594591][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.594591][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.594591][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.594591][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.594591][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.594591][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.594591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.594591][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.594591][ T10] netlink_unicast+0x449/0x710 [ 3650.594591][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.594591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.594591][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.594591][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.594591][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.594591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.594591][ T10] [ 3650.597015][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3650.597015][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.597015][ T10] ipv6_find_idev+0x102/0x170 [ 3650.597015][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.597015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.597015][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.597015][ T10] netlink_unicast+0x449/0x710 [ 3650.597015][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.597015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.597015][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.597015][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.597015][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.597015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.597015][ T10] [ 3650.598994][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3650.598994][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.598994][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.598994][ T10] ipv6_find_idev+0x102/0x170 [ 3650.598994][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.598994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.598994][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.598994][ T10] netlink_unicast+0x449/0x710 [ 3650.598994][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.598994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.598994][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.598994][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.598994][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.598994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.598994][ T10] [ 3650.601388][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3650.601745][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3650.601745][ T10] netdev_get_by_index+0x5e/0x80 [ 3650.601745][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3650.601745][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3650.601745][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3650.601745][ T10] ipv6_add_addr+0x411/0x2000 [ 3650.601745][ T10] inet6_addr_add+0x30e/0xa40 [ 3650.601745][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.601745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.601745][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.601745][ T10] netlink_unicast+0x449/0x710 [ 3650.601745][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.601745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.601745][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.601745][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.601745][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.601745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.601745][ T10] [ 3650.604198][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3650.604198][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3650.604198][ T10] ipv6_find_idev+0x102/0x170 [ 3650.604198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.604198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.604198][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.604198][ T10] netlink_unicast+0x449/0x710 [ 3650.604198][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.604198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.604198][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.604198][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.604198][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.604198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.604198][ T10] [ 3650.606114][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3650.606114][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3650.606114][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3650.606114][ T10] ipv6_find_idev+0x102/0x170 [ 3650.606114][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.606114][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.606114][ T10] netlink_rcv_skb+0x130/0x360 [ 3650.606114][ T10] netlink_unicast+0x449/0x710 [ 3650.606114][ T10] netlink_sendmsg+0x723/0xbe0 [ 3650.606114][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3650.606114][ T10] ___sys_sendmsg+0xee/0x170 [ 3650.606114][ T10] __sys_sendmsg+0xcd/0x170 [ 3650.606114][ T10] do_syscall_64+0xc6/0x1e0 [ 3650.606114][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.606114][ T10] [ 3660.843703][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3660.844167][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3660.844167][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.844167][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.844167][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.844167][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.844167][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.844167][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.844167][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.844167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.844167][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.844167][ T10] netlink_unicast+0x449/0x710 [ 3660.844167][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.844167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.844167][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.844167][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.844167][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.844167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.844167][ T10] [ 3660.846457][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3660.846457][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.846457][ T10] ipv6_find_idev+0x102/0x170 [ 3660.846457][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.846457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.846457][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.846457][ T10] netlink_unicast+0x449/0x710 [ 3660.846457][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.846457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.846457][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.846457][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.846457][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.846457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.846457][ T10] [ 3660.848205][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3660.848205][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.848205][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.848205][ T10] ipv6_find_idev+0x102/0x170 [ 3660.848205][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.848205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.848205][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.848205][ T10] netlink_unicast+0x449/0x710 [ 3660.848205][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.848205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.848205][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.848205][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.848205][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.848205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.848205][ T10] [ 3660.850116][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3660.850422][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3660.850422][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.850422][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.850422][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.850422][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.850422][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.850422][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.850422][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.850422][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.850422][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.850422][ T10] netlink_unicast+0x449/0x710 [ 3660.850422][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.850422][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.850422][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.850422][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.850422][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.850422][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.850422][ T10] [ 3660.852677][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3660.852677][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.852677][ T10] ipv6_find_idev+0x102/0x170 [ 3660.852677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.852677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.852677][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.852677][ T10] netlink_unicast+0x449/0x710 [ 3660.852677][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.852677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.852677][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.852677][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.852677][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.852677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.852677][ T10] [ 3660.854437][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3660.854437][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.854437][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.854437][ T10] ipv6_find_idev+0x102/0x170 [ 3660.854437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.854437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.854437][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.854437][ T10] netlink_unicast+0x449/0x710 [ 3660.854437][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.854437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.854437][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.854437][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.854437][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.854437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.854437][ T10] [ 3660.856353][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3660.856648][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3660.856648][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.856648][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.856648][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.856648][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.856648][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.856648][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.856648][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.856648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.856648][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.856648][ T10] netlink_unicast+0x449/0x710 [ 3660.856648][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.856648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.856648][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.856648][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.856648][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.856648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.856648][ T10] [ 3660.858893][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3660.858893][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.858893][ T10] ipv6_find_idev+0x102/0x170 [ 3660.858893][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.858893][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.858893][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.858893][ T10] netlink_unicast+0x449/0x710 [ 3660.858893][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.858893][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.858893][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.858893][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.858893][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.858893][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.858893][ T10] [ 3660.860636][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3660.860636][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.860636][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.860636][ T10] ipv6_find_idev+0x102/0x170 [ 3660.860636][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.860636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.860636][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.860636][ T10] netlink_unicast+0x449/0x710 [ 3660.860636][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.860636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.860636][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.860636][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.860636][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.860636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.860636][ T10] [ 3660.862557][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3660.863294][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3660.863294][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.863294][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.863294][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.863294][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.863294][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.863294][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.863294][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.863294][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.863294][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.863294][ T10] netlink_unicast+0x449/0x710 [ 3660.863294][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.863294][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.863294][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.863294][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.863294][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.863294][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.863294][ T10] [ 3660.865568][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3660.865568][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.865568][ T10] ipv6_find_idev+0x102/0x170 [ 3660.865568][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.865568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.865568][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.865568][ T10] netlink_unicast+0x449/0x710 [ 3660.865568][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.865568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.865568][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.865568][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.865568][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.865568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.865568][ T10] [ 3660.867325][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3660.867325][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.867325][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.867325][ T10] ipv6_find_idev+0x102/0x170 [ 3660.867325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.867325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.867325][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.867325][ T10] netlink_unicast+0x449/0x710 [ 3660.867325][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.867325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.867325][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.867325][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.867325][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.867325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.867325][ T10] [ 3660.869291][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3660.869636][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3660.869636][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.869636][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.869636][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.869636][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.869636][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.869636][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.869636][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.869636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.869636][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.869636][ T10] netlink_unicast+0x449/0x710 [ 3660.869636][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.869636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.869636][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.869636][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.869636][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.869636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.869636][ T10] [ 3660.871889][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3660.871889][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.871889][ T10] ipv6_find_idev+0x102/0x170 [ 3660.871889][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.871889][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.871889][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.871889][ T10] netlink_unicast+0x449/0x710 [ 3660.871889][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.871889][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.871889][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.871889][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.871889][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.871889][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.871889][ T10] [ 3660.873632][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3660.873632][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.873632][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.873632][ T10] ipv6_find_idev+0x102/0x170 [ 3660.873632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.873632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.873632][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.873632][ T10] netlink_unicast+0x449/0x710 [ 3660.873632][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.873632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.873632][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.873632][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.873632][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.873632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.873632][ T10] [ 3660.875563][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3660.875908][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3660.875908][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.875908][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.875908][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.875908][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.875908][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.875908][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.875908][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.875908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.875908][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.875908][ T10] netlink_unicast+0x449/0x710 [ 3660.875908][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.875908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.875908][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.875908][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.875908][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.875908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.875908][ T10] [ 3660.878153][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3660.878153][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.878153][ T10] ipv6_find_idev+0x102/0x170 [ 3660.878153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.878153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.878153][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.878153][ T10] netlink_unicast+0x449/0x710 [ 3660.878153][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.878153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.878153][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.878153][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.878153][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.878153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.878153][ T10] [ 3660.880015][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3660.880015][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.880015][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.880015][ T10] ipv6_find_idev+0x102/0x170 [ 3660.880015][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.880015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.880015][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.880015][ T10] netlink_unicast+0x449/0x710 [ 3660.880015][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.880015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.880015][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.880015][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.880015][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.880015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.880015][ T10] [ 3660.882259][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3660.882595][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3660.882595][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.882595][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.882595][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.882595][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.882595][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.882595][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.882595][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.882595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.882595][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.882595][ T10] netlink_unicast+0x449/0x710 [ 3660.882595][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.882595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.882595][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.882595][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.882595][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.882595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.882595][ T10] [ 3660.885038][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3660.885038][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.885038][ T10] ipv6_find_idev+0x102/0x170 [ 3660.885038][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.885038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.885038][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.885038][ T10] netlink_unicast+0x449/0x710 [ 3660.885038][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.885038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.885038][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.885038][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.885038][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.885038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.885038][ T10] [ 3660.886959][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3660.886959][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.886959][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.886959][ T10] ipv6_find_idev+0x102/0x170 [ 3660.886959][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.886959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.886959][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.886959][ T10] netlink_unicast+0x449/0x710 [ 3660.886959][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.886959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.886959][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.886959][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.886959][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.886959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.886959][ T10] [ 3660.889080][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3660.889430][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3660.889430][ T10] netdev_get_by_index+0x5e/0x80 [ 3660.889430][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3660.889430][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3660.889430][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3660.889430][ T10] ipv6_add_addr+0x411/0x2000 [ 3660.889430][ T10] inet6_addr_add+0x30e/0xa40 [ 3660.889430][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.889430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.889430][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.889430][ T10] netlink_unicast+0x449/0x710 [ 3660.889430][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.889430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.889430][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.889430][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.889430][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.889430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.889430][ T10] [ 3660.891865][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3660.891865][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3660.891865][ T10] ipv6_find_idev+0x102/0x170 [ 3660.891865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.891865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.891865][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.891865][ T10] netlink_unicast+0x449/0x710 [ 3660.891865][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.891865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.891865][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.891865][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.891865][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.891865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.891865][ T10] [ 3660.893863][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3660.893863][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3660.893863][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3660.893863][ T10] ipv6_find_idev+0x102/0x170 [ 3660.893863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.893863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.893863][ T10] netlink_rcv_skb+0x130/0x360 [ 3660.893863][ T10] netlink_unicast+0x449/0x710 [ 3660.893863][ T10] netlink_sendmsg+0x723/0xbe0 [ 3660.893863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3660.893863][ T10] ___sys_sendmsg+0xee/0x170 [ 3660.893863][ T10] __sys_sendmsg+0xcd/0x170 [ 3660.893863][ T10] do_syscall_64+0xc6/0x1e0 [ 3660.893863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.893863][ T10] [ 3671.131730][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3671.132258][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3671.132258][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.132258][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.132258][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.132258][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.132258][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.132258][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.132258][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.132258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.132258][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.132258][ T10] netlink_unicast+0x449/0x710 [ 3671.132258][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.132258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.132258][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.132258][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.132258][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.132258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.132258][ T10] [ 3671.134520][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3671.134520][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.134520][ T10] ipv6_find_idev+0x102/0x170 [ 3671.134520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.134520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.134520][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.134520][ T10] netlink_unicast+0x449/0x710 [ 3671.134520][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.134520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.134520][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.134520][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.134520][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.134520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.134520][ T10] [ 3671.136284][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3671.136284][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.136284][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.136284][ T10] ipv6_find_idev+0x102/0x170 [ 3671.136284][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.136284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.136284][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.136284][ T10] netlink_unicast+0x449/0x710 [ 3671.136284][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.136284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.136284][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.136284][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.136284][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.136284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.136284][ T10] [ 3671.138218][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3671.138545][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3671.138545][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.138545][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.138545][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.138545][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.138545][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.138545][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.138545][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.138545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.138545][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.138545][ T10] netlink_unicast+0x449/0x710 [ 3671.138545][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.138545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.138545][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.138545][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.138545][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.138545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.138545][ T10] [ 3671.141008][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3671.141008][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.141008][ T10] ipv6_find_idev+0x102/0x170 [ 3671.141008][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.141008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.141008][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.141008][ T10] netlink_unicast+0x449/0x710 [ 3671.141008][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.141008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.141008][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.141008][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.141008][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.141008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.141008][ T10] [ 3671.142893][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3671.142893][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.142893][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.142893][ T10] ipv6_find_idev+0x102/0x170 [ 3671.142893][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.142893][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.142893][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.142893][ T10] netlink_unicast+0x449/0x710 [ 3671.142893][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.142893][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.142893][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.142893][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.142893][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.142893][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.142893][ T10] [ 3671.144853][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3671.145149][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3671.145149][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.145149][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.145149][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.145149][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.145149][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.145149][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.145149][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.145149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.145149][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.145149][ T10] netlink_unicast+0x449/0x710 [ 3671.145149][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.145149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.145149][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.145149][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.145149][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.145149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.145149][ T10] [ 3671.147408][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3671.147408][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.147408][ T10] ipv6_find_idev+0x102/0x170 [ 3671.147408][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.147408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.147408][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.147408][ T10] netlink_unicast+0x449/0x710 [ 3671.147408][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.147408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.147408][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.147408][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.147408][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.147408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.147408][ T10] [ 3671.149159][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3671.149159][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.149159][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.149159][ T10] ipv6_find_idev+0x102/0x170 [ 3671.149159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.149159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.149159][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.149159][ T10] netlink_unicast+0x449/0x710 [ 3671.149159][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.149159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.149159][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.149159][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.149159][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.149159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.149159][ T10] [ 3671.151063][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3671.151354][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3671.151354][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.151354][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.151354][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.151354][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.151354][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.151354][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.151354][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.151354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.151354][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.151354][ T10] netlink_unicast+0x449/0x710 [ 3671.151354][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.151354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.151354][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.151354][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.151354][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.151354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.151354][ T10] [ 3671.153788][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3671.153788][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.153788][ T10] ipv6_find_idev+0x102/0x170 [ 3671.153788][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.153788][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.153788][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.153788][ T10] netlink_unicast+0x449/0x710 [ 3671.153788][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.153788][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.153788][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.153788][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.153788][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.153788][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.153788][ T10] [ 3671.155639][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3671.155639][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.155639][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.155639][ T10] ipv6_find_idev+0x102/0x170 [ 3671.155639][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.155639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.155639][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.155639][ T10] netlink_unicast+0x449/0x710 [ 3671.155639][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.155639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.155639][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.155639][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.155639][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.155639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.155639][ T10] [ 3671.158069][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3671.158754][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3671.158754][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.158754][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.158754][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.158754][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.158754][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.158754][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.158754][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.158754][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.158754][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.158754][ T10] netlink_unicast+0x449/0x710 [ 3671.158754][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.158754][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.158754][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.158754][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.158754][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.158754][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.158754][ T10] [ 3671.161137][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3671.161137][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.161137][ T10] ipv6_find_idev+0x102/0x170 [ 3671.161137][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.161137][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.161137][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.161137][ T10] netlink_unicast+0x449/0x710 [ 3671.161137][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.161137][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.161137][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.161137][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.161137][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.161137][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.161137][ T10] [ 3671.162999][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3671.162999][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.162999][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.162999][ T10] ipv6_find_idev+0x102/0x170 [ 3671.162999][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.162999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.162999][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.162999][ T10] netlink_unicast+0x449/0x710 [ 3671.162999][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.162999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.162999][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.162999][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.162999][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.162999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.162999][ T10] [ 3671.165037][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3671.165350][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3671.165350][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.165350][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.165350][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.165350][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.165350][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.165350][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.165350][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.165350][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.165350][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.165350][ T10] netlink_unicast+0x449/0x710 [ 3671.165350][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.165350][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.165350][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.165350][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.165350][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.165350][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.165350][ T10] [ 3671.167642][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3671.167642][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.167642][ T10] ipv6_find_idev+0x102/0x170 [ 3671.167642][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.167642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.167642][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.167642][ T10] netlink_unicast+0x449/0x710 [ 3671.167642][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.167642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.167642][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.167642][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.167642][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.167642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.167642][ T10] [ 3671.169444][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3671.169444][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.169444][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.169444][ T10] ipv6_find_idev+0x102/0x170 [ 3671.169444][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.169444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.169444][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.169444][ T10] netlink_unicast+0x449/0x710 [ 3671.169444][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.169444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.169444][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.169444][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.169444][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.169444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.169444][ T10] [ 3671.171652][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3671.172029][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3671.172029][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.172029][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.172029][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.172029][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.172029][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.172029][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.172029][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.172029][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.172029][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.172029][ T10] netlink_unicast+0x449/0x710 [ 3671.172029][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.172029][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.172029][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.172029][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.172029][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.172029][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.172029][ T10] [ 3671.174692][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3671.174692][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.174692][ T10] ipv6_find_idev+0x102/0x170 [ 3671.174692][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.174692][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.174692][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.174692][ T10] netlink_unicast+0x449/0x710 [ 3671.174692][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.174692][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.174692][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.174692][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.174692][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.174692][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.174692][ T10] [ 3671.176745][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3671.176745][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.176745][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.176745][ T10] ipv6_find_idev+0x102/0x170 [ 3671.176745][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.176745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.176745][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.176745][ T10] netlink_unicast+0x449/0x710 [ 3671.176745][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.176745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.176745][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.176745][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.176745][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.176745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.176745][ T10] [ 3671.179077][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3671.179443][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3671.179443][ T10] netdev_get_by_index+0x5e/0x80 [ 3671.179443][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3671.179443][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3671.179443][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3671.179443][ T10] ipv6_add_addr+0x411/0x2000 [ 3671.179443][ T10] inet6_addr_add+0x30e/0xa40 [ 3671.179443][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3671.179443][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.179443][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.179443][ T10] netlink_unicast+0x449/0x710 [ 3671.179443][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.179443][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.179443][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.179443][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.179443][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.179443][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.179443][ T10] [ 3671.182062][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3671.182062][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3671.182062][ T10] ipv6_find_idev+0x102/0x170 [ 3671.182062][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.182062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.182062][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.182062][ T10] netlink_unicast+0x449/0x710 [ 3671.182062][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.182062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.182062][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.182062][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.182062][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.182062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.182062][ T10] [ 3671.184107][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3671.184107][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3671.184107][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3671.184107][ T10] ipv6_find_idev+0x102/0x170 [ 3671.184107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3671.184107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3671.184107][ T10] netlink_rcv_skb+0x130/0x360 [ 3671.184107][ T10] netlink_unicast+0x449/0x710 [ 3671.184107][ T10] netlink_sendmsg+0x723/0xbe0 [ 3671.184107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3671.184107][ T10] ___sys_sendmsg+0xee/0x170 [ 3671.184107][ T10] __sys_sendmsg+0xcd/0x170 [ 3671.184107][ T10] do_syscall_64+0xc6/0x1e0 [ 3671.184107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3671.184107][ T10] [ 3681.403779][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3681.404285][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3681.404285][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.404285][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.404285][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.404285][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.404285][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.404285][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.404285][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.404285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.404285][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.404285][ T10] netlink_unicast+0x449/0x710 [ 3681.404285][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.404285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.404285][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.404285][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.404285][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.404285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.404285][ T10] [ 3681.406291][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3681.406291][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.406291][ T10] ipv6_find_idev+0x102/0x170 [ 3681.406291][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.406291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.406291][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.406291][ T10] netlink_unicast+0x449/0x710 [ 3681.406291][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.406291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.406291][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.406291][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.406291][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.406291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.406291][ T10] [ 3681.407818][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3681.407818][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.407818][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.407818][ T10] ipv6_find_idev+0x102/0x170 [ 3681.407818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.407818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.407818][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.407818][ T10] netlink_unicast+0x449/0x710 [ 3681.407818][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.407818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.407818][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.407818][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.407818][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.407818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.407818][ T10] [ 3681.409505][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3681.409792][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3681.409792][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.409792][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.409792][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.409792][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.409792][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.409792][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.409792][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.409792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.409792][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.409792][ T10] netlink_unicast+0x449/0x710 [ 3681.409792][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.409792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.409792][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.409792][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.409792][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.409792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.409792][ T10] [ 3681.411764][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3681.411764][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.411764][ T10] ipv6_find_idev+0x102/0x170 [ 3681.411764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.411764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.411764][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.411764][ T10] netlink_unicast+0x449/0x710 [ 3681.411764][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.411764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.411764][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.411764][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.411764][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.411764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.411764][ T10] [ 3681.413294][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3681.413294][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.413294][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.413294][ T10] ipv6_find_idev+0x102/0x170 [ 3681.413294][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.413294][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.413294][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.413294][ T10] netlink_unicast+0x449/0x710 [ 3681.413294][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.413294][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.413294][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.413294][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.413294][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.413294][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.413294][ T10] [ 3681.414953][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3681.415226][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3681.415226][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.415226][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.415226][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.415226][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.415226][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.415226][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.415226][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.415226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.415226][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.415226][ T10] netlink_unicast+0x449/0x710 [ 3681.415226][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.415226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.415226][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.415226][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.415226][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.415226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.415226][ T10] [ 3681.417194][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3681.417194][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.417194][ T10] ipv6_find_idev+0x102/0x170 [ 3681.417194][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.417194][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.417194][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.417194][ T10] netlink_unicast+0x449/0x710 [ 3681.417194][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.417194][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.417194][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.417194][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.417194][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.417194][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.417194][ T10] [ 3681.418720][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3681.418720][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.418720][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.418720][ T10] ipv6_find_idev+0x102/0x170 [ 3681.418720][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.418720][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.418720][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.418720][ T10] netlink_unicast+0x449/0x710 [ 3681.418720][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.418720][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.418720][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.418720][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.418720][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.418720][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.418720][ T10] [ 3681.420387][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3681.420645][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3681.420645][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.420645][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.420645][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.420645][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.420645][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.420645][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.420645][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.420645][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.420645][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.420645][ T10] netlink_unicast+0x449/0x710 [ 3681.420645][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.420645][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.420645][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.420645][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.420645][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.420645][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.420645][ T10] [ 3681.422610][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3681.422610][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.422610][ T10] ipv6_find_idev+0x102/0x170 [ 3681.422610][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.422610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.422610][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.422610][ T10] netlink_unicast+0x449/0x710 [ 3681.422610][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.422610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.422610][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.422610][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.422610][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.422610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.422610][ T10] [ 3681.424127][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3681.424127][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.424127][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.424127][ T10] ipv6_find_idev+0x102/0x170 [ 3681.424127][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.424127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.424127][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.424127][ T10] netlink_unicast+0x449/0x710 [ 3681.424127][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.424127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.424127][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.424127][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.424127][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.424127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.424127][ T10] [ 3681.426195][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3681.426455][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3681.426455][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.426455][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.426455][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.426455][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.426455][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.426455][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.426455][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.426455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.426455][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.426455][ T10] netlink_unicast+0x449/0x710 [ 3681.426455][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.426455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.426455][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.426455][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.426455][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.426455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.426455][ T10] [ 3681.428421][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3681.428421][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.428421][ T10] ipv6_find_idev+0x102/0x170 [ 3681.428421][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.428421][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.428421][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.428421][ T10] netlink_unicast+0x449/0x710 [ 3681.428421][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.428421][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.428421][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.428421][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.428421][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.428421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.428421][ T10] [ 3681.429942][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3681.429942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.429942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.429942][ T10] ipv6_find_idev+0x102/0x170 [ 3681.429942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.429942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.429942][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.429942][ T10] netlink_unicast+0x449/0x710 [ 3681.429942][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.429942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.429942][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.429942][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.429942][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.429942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.429942][ T10] [ 3681.431669][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3681.431929][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3681.431929][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.431929][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.431929][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.431929][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.431929][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.431929][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.431929][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.431929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.431929][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.431929][ T10] netlink_unicast+0x449/0x710 [ 3681.431929][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.431929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.431929][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.431929][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.431929][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.431929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.431929][ T10] [ 3681.434050][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3681.434050][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.434050][ T10] ipv6_find_idev+0x102/0x170 [ 3681.434050][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.434050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.434050][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.434050][ T10] netlink_unicast+0x449/0x710 [ 3681.434050][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.434050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.434050][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.434050][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.434050][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.434050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.434050][ T10] [ 3681.435747][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3681.435747][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.435747][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.435747][ T10] ipv6_find_idev+0x102/0x170 [ 3681.435747][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.435747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.435747][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.435747][ T10] netlink_unicast+0x449/0x710 [ 3681.435747][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.435747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.435747][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.435747][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.435747][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.435747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.435747][ T10] [ 3681.437699][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3681.437961][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3681.437961][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.437961][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.437961][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.437961][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.437961][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.437961][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.437961][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.437961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.437961][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.437961][ T10] netlink_unicast+0x449/0x710 [ 3681.437961][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.437961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.437961][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.437961][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.437961][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.437961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.437961][ T10] [ 3681.440173][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3681.440173][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.440173][ T10] ipv6_find_idev+0x102/0x170 [ 3681.440173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.440173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.440173][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.440173][ T10] netlink_unicast+0x449/0x710 [ 3681.440173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.440173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.440173][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.440173][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.440173][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.440173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.440173][ T10] [ 3681.441883][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3681.441883][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.441883][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.441883][ T10] ipv6_find_idev+0x102/0x170 [ 3681.441883][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.441883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.441883][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.441883][ T10] netlink_unicast+0x449/0x710 [ 3681.441883][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.441883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.441883][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.441883][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.441883][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.441883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.441883][ T10] [ 3681.443826][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3681.444085][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3681.444085][ T10] netdev_get_by_index+0x5e/0x80 [ 3681.444085][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3681.444085][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3681.444085][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3681.444085][ T10] ipv6_add_addr+0x411/0x2000 [ 3681.444085][ T10] inet6_addr_add+0x30e/0xa40 [ 3681.444085][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3681.444085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.444085][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.444085][ T10] netlink_unicast+0x449/0x710 [ 3681.444085][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.444085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.444085][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.444085][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.444085][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.444085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.444085][ T10] [ 3681.446234][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3681.446234][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3681.446234][ T10] ipv6_find_idev+0x102/0x170 [ 3681.446234][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.446234][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.446234][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.446234][ T10] netlink_unicast+0x449/0x710 [ 3681.446234][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.446234][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.446234][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.446234][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.446234][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.446234][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.446234][ T10] [ 3681.447928][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3681.447928][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3681.447928][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3681.447928][ T10] ipv6_find_idev+0x102/0x170 [ 3681.447928][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3681.447928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3681.447928][ T10] netlink_rcv_skb+0x130/0x360 [ 3681.447928][ T10] netlink_unicast+0x449/0x710 [ 3681.447928][ T10] netlink_sendmsg+0x723/0xbe0 [ 3681.447928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3681.447928][ T10] ___sys_sendmsg+0xee/0x170 [ 3681.447928][ T10] __sys_sendmsg+0xcd/0x170 [ 3681.447928][ T10] do_syscall_64+0xc6/0x1e0 [ 3681.447928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3681.447928][ T10] [ 3687.715819][ T42] INFO: task modprobe:14797 blocked for more than 614 seconds. [ 3687.716182][ T42] Not tainted 6.8.0-virtme #1 [ 3687.716316][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3687.716515][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 3687.716798][ T42] Call Trace: [ 3687.716896][ T42] [ 3687.716968][ T42] __schedule+0x705/0x1ac0 [ 3687.717107][ T42] ? __pfx___schedule+0x10/0x10 [ 3687.717233][ T42] ? schedule+0x1a5/0x210 [ 3687.717330][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3687.717465][ T42] ? mark_lock+0x38/0x3e0 [ 3687.717559][ T42] ? do_raw_spin_lock+0x131/0x270 [ 3687.717702][ T42] ? schedule+0x1a5/0x210 [ 3687.717803][ T42] schedule+0xdf/0x210 [ 3687.717905][ T42] schedule_preempt_disabled+0x15/0x30 [ 3687.718027][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 3687.718157][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 3687.718316][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3687.718445][ T42] ? lock_acquire+0x1c1/0x220 [ 3687.718568][ T42] ? register_pernet_subsys+0x1a/0x50 [ 3687.718716][ T42] down_write+0x1c9/0x200 [ 3687.718811][ T42] ? __pfx_down_write+0x10/0x10 [ 3687.718942][ T42] ? __lock_release+0x103/0x460 [ 3687.719065][ T42] ? __create_object+0x5e/0xb0 [ 3687.719193][ T42] ? __pfx___lock_release+0x10/0x10 [ 3687.719320][ T42] register_pernet_subsys+0x1a/0x50 [ 3687.719447][ T42] tcf_register_action+0xa3/0x600 [ 3687.719577][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 3687.719745][ T42] do_one_initcall+0xc8/0x3f0 [ 3687.719872][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 3687.720003][ T42] ? __create_object+0x5e/0xb0 [ 3687.720129][ T42] ? kasan_unpoison+0x27/0x60 [ 3687.720258][ T42] do_init_module+0x233/0x740 [ 3687.720396][ T42] load_module+0x16b5/0x2350 [ 3687.720533][ T42] ? __pfx_load_module+0x10/0x10 [ 3687.720691][ T42] ? kernel_read_file+0x3d2/0x520 [ 3687.720827][ T42] ? kernel_read_file+0x300/0x520 [ 3687.720955][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 3687.721089][ T42] ? init_module_from_file+0xd2/0x130 [ 3687.721217][ T42] init_module_from_file+0xd2/0x130 [ 3687.721340][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 3687.721491][ T42] ? __lock_release+0x103/0x460 [ 3687.721614][ T42] ? idempotent_init_module+0x32a/0x620 [ 3687.721757][ T42] ? idempotent_init_module+0x32a/0x620 [ 3687.721880][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 3687.722010][ T42] idempotent_init_module+0x342/0x620 [ 3687.722138][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 3687.722311][ T42] __x64_sys_finit_module+0xbe/0x130 [ 3687.722437][ T42] do_syscall_64+0xc6/0x1e0 [ 3687.722564][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3687.722727][ T42] RIP: 0033:0x7f188f3c6e5d [ 3687.722873][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3687.723070][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 3687.723257][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 3687.723441][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 3687.723628][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 3687.723820][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 3687.724022][ T42] [ 3687.724117][ T42] [ 3687.724117][ T42] Showing all locks held in the system: [ 3687.724297][ T42] 3 locks held by kworker/u16:0/10: [ 3687.724434][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3687.724708][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3687.724932][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 3687.725160][ T42] 1 lock held by khungtaskd/42: [ 3687.725280][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 3687.725510][ T42] 2 locks held by kworker/u20:2/10034: [ 3687.725627][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3687.725887][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3687.726169][ T42] 1 lock held by modprobe/14797: [ 3687.726286][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 3687.726530][ T42] [ 3687.726593][ T42] ============================================= [ 3687.726593][ T42] [ 3691.699787][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3691.700328][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3691.700328][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.700328][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.700328][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.700328][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.700328][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.700328][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.700328][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.700328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.700328][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.700328][ T10] netlink_unicast+0x449/0x710 [ 3691.700328][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.700328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.700328][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.700328][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.700328][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.700328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.700328][ T10] [ 3691.702463][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3691.702463][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.702463][ T10] ipv6_find_idev+0x102/0x170 [ 3691.702463][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.702463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.702463][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.702463][ T10] netlink_unicast+0x449/0x710 [ 3691.702463][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.702463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.702463][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.702463][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.702463][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.702463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.702463][ T10] [ 3691.704021][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3691.704021][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.704021][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.704021][ T10] ipv6_find_idev+0x102/0x170 [ 3691.704021][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.704021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.704021][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.704021][ T10] netlink_unicast+0x449/0x710 [ 3691.704021][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.704021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.704021][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.704021][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.704021][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.704021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.704021][ T10] [ 3691.705735][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3691.706005][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3691.706005][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.706005][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.706005][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.706005][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.706005][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.706005][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.706005][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.706005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.706005][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.706005][ T10] netlink_unicast+0x449/0x710 [ 3691.706005][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.706005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.706005][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.706005][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.706005][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.706005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.706005][ T10] [ 3691.708017][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3691.708017][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.708017][ T10] ipv6_find_idev+0x102/0x170 [ 3691.708017][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.708017][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.708017][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.708017][ T10] netlink_unicast+0x449/0x710 [ 3691.708017][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.708017][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.708017][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.708017][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.708017][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.708017][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.708017][ T10] [ 3691.709568][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3691.709568][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.709568][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.709568][ T10] ipv6_find_idev+0x102/0x170 [ 3691.709568][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.709568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.709568][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.709568][ T10] netlink_unicast+0x449/0x710 [ 3691.709568][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.709568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.709568][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.709568][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.709568][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.709568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.709568][ T10] [ 3691.711280][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3691.711548][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3691.711548][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.711548][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.711548][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.711548][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.711548][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.711548][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.711548][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.711548][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.711548][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.711548][ T10] netlink_unicast+0x449/0x710 [ 3691.711548][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.711548][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.711548][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.711548][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.711548][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.711548][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.711548][ T10] [ 3691.713538][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3691.713538][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.713538][ T10] ipv6_find_idev+0x102/0x170 [ 3691.713538][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.713538][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.713538][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.713538][ T10] netlink_unicast+0x449/0x710 [ 3691.713538][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.713538][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.713538][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.713538][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.713538][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.713538][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.713538][ T10] [ 3691.715076][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3691.715076][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.715076][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.715076][ T10] ipv6_find_idev+0x102/0x170 [ 3691.715076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.715076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.715076][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.715076][ T10] netlink_unicast+0x449/0x710 [ 3691.715076][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.715076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.715076][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.715076][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.715076][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.715076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.715076][ T10] [ 3691.716752][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3691.717025][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3691.717025][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.717025][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.717025][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.717025][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.717025][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.717025][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.717025][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.717025][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.717025][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.717025][ T10] netlink_unicast+0x449/0x710 [ 3691.717025][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.717025][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.717025][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.717025][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.717025][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.717025][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.717025][ T10] [ 3691.719015][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3691.719015][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.719015][ T10] ipv6_find_idev+0x102/0x170 [ 3691.719015][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.719015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.719015][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.719015][ T10] netlink_unicast+0x449/0x710 [ 3691.719015][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.719015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.719015][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.719015][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.719015][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.719015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.719015][ T10] [ 3691.720542][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3691.720542][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.720542][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.720542][ T10] ipv6_find_idev+0x102/0x170 [ 3691.720542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.720542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.720542][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.720542][ T10] netlink_unicast+0x449/0x710 [ 3691.720542][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.720542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.720542][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.720542][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.720542][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.720542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.720542][ T10] [ 3691.722619][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3691.723232][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3691.723232][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.723232][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.723232][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.723232][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.723232][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.723232][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.723232][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.723232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.723232][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.723232][ T10] netlink_unicast+0x449/0x710 [ 3691.723232][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.723232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.723232][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.723232][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.723232][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.723232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.723232][ T10] [ 3691.725210][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3691.725210][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.725210][ T10] ipv6_find_idev+0x102/0x170 [ 3691.725210][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.725210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.725210][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.725210][ T10] netlink_unicast+0x449/0x710 [ 3691.725210][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.725210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.725210][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.725210][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.725210][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.725210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.725210][ T10] [ 3691.726733][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3691.726733][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.726733][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.726733][ T10] ipv6_find_idev+0x102/0x170 [ 3691.726733][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.726733][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.726733][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.726733][ T10] netlink_unicast+0x449/0x710 [ 3691.726733][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.726733][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.726733][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.726733][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.726733][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.726733][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.726733][ T10] [ 3691.728417][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3691.728752][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3691.728752][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.728752][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.728752][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.728752][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.728752][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.728752][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.728752][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.728752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.728752][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.728752][ T10] netlink_unicast+0x449/0x710 [ 3691.728752][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.728752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.728752][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.728752][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.728752][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.728752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.728752][ T10] [ 3691.730738][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3691.730738][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.730738][ T10] ipv6_find_idev+0x102/0x170 [ 3691.730738][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.730738][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.730738][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.730738][ T10] netlink_unicast+0x449/0x710 [ 3691.730738][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.730738][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.730738][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.730738][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.730738][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.730738][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.730738][ T10] [ 3691.732263][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3691.732263][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.732263][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.732263][ T10] ipv6_find_idev+0x102/0x170 [ 3691.732263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.732263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.732263][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.732263][ T10] netlink_unicast+0x449/0x710 [ 3691.732263][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.732263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.732263][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.732263][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.732263][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.732263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.732263][ T10] [ 3691.734249][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3691.734561][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3691.734561][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.734561][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.734561][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.734561][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.734561][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.734561][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.734561][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.734561][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.734561][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.734561][ T10] netlink_unicast+0x449/0x710 [ 3691.734561][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.734561][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.734561][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.734561][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.734561][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.734561][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.734561][ T10] [ 3691.736718][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3691.736718][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.736718][ T10] ipv6_find_idev+0x102/0x170 [ 3691.736718][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.736718][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.736718][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.736718][ T10] netlink_unicast+0x449/0x710 [ 3691.736718][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.736718][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.736718][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.736718][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.736718][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.736718][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.736718][ T10] [ 3691.738424][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3691.738424][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.738424][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.738424][ T10] ipv6_find_idev+0x102/0x170 [ 3691.738424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.738424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.738424][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.738424][ T10] netlink_unicast+0x449/0x710 [ 3691.738424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.738424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.738424][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.738424][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.738424][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.738424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.738424][ T10] [ 3691.740376][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3691.740707][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3691.740707][ T10] netdev_get_by_index+0x5e/0x80 [ 3691.740707][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3691.740707][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3691.740707][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3691.740707][ T10] ipv6_add_addr+0x411/0x2000 [ 3691.740707][ T10] inet6_addr_add+0x30e/0xa40 [ 3691.740707][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3691.740707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.740707][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.740707][ T10] netlink_unicast+0x449/0x710 [ 3691.740707][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.740707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.740707][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.740707][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.740707][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.740707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.740707][ T10] [ 3691.742861][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3691.742861][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3691.742861][ T10] ipv6_find_idev+0x102/0x170 [ 3691.742861][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.742861][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.742861][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.742861][ T10] netlink_unicast+0x449/0x710 [ 3691.742861][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.742861][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.742861][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.742861][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.742861][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.742861][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.742861][ T10] [ 3691.744569][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3691.744569][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3691.744569][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3691.744569][ T10] ipv6_find_idev+0x102/0x170 [ 3691.744569][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3691.744569][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3691.744569][ T10] netlink_rcv_skb+0x130/0x360 [ 3691.744569][ T10] netlink_unicast+0x449/0x710 [ 3691.744569][ T10] netlink_sendmsg+0x723/0xbe0 [ 3691.744569][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3691.744569][ T10] ___sys_sendmsg+0xee/0x170 [ 3691.744569][ T10] __sys_sendmsg+0xcd/0x170 [ 3691.744569][ T10] do_syscall_64+0xc6/0x1e0 [ 3691.744569][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3691.744569][ T10] [ 3701.995805][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3701.996248][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3701.996248][ T10] netdev_get_by_index+0x5e/0x80 [ 3701.996248][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3701.996248][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3701.996248][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3701.996248][ T10] ipv6_add_addr+0x411/0x2000 [ 3701.996248][ T10] inet6_addr_add+0x30e/0xa40 [ 3701.996248][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3701.996248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3701.996248][ T10] netlink_rcv_skb+0x130/0x360 [ 3701.996248][ T10] netlink_unicast+0x449/0x710 [ 3701.996248][ T10] netlink_sendmsg+0x723/0xbe0 [ 3701.996248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3701.996248][ T10] ___sys_sendmsg+0xee/0x170 [ 3701.996248][ T10] __sys_sendmsg+0xcd/0x170 [ 3701.996248][ T10] do_syscall_64+0xc6/0x1e0 [ 3701.996248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3701.996248][ T10] [ 3701.998254][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3701.998254][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3701.998254][ T10] ipv6_find_idev+0x102/0x170 [ 3701.998254][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3701.998254][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3701.998254][ T10] netlink_rcv_skb+0x130/0x360 [ 3701.998254][ T10] netlink_unicast+0x449/0x710 [ 3701.998254][ T10] netlink_sendmsg+0x723/0xbe0 [ 3701.998254][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3701.998254][ T10] ___sys_sendmsg+0xee/0x170 [ 3701.998254][ T10] __sys_sendmsg+0xcd/0x170 [ 3701.998254][ T10] do_syscall_64+0xc6/0x1e0 [ 3701.998254][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3701.998254][ T10] [ 3701.999781][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3701.999781][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3701.999781][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3701.999781][ T10] ipv6_find_idev+0x102/0x170 [ 3701.999781][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3701.999781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3701.999781][ T10] netlink_rcv_skb+0x130/0x360 [ 3701.999781][ T10] netlink_unicast+0x449/0x710 [ 3701.999781][ T10] netlink_sendmsg+0x723/0xbe0 [ 3701.999781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3701.999781][ T10] ___sys_sendmsg+0xee/0x170 [ 3701.999781][ T10] __sys_sendmsg+0xcd/0x170 [ 3701.999781][ T10] do_syscall_64+0xc6/0x1e0 [ 3701.999781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3701.999781][ T10] [ 3702.001463][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3702.001748][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3702.001748][ T10] netdev_get_by_index+0x5e/0x80 [ 3702.001748][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3702.001748][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3702.001748][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3702.001748][ T10] ipv6_add_addr+0x411/0x2000 [ 3702.001748][ T10] inet6_addr_add+0x30e/0xa40 [ 3702.001748][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3702.001748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.001748][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.001748][ T10] netlink_unicast+0x449/0x710 [ 3702.001748][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.001748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.001748][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.001748][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.001748][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.001748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.001748][ T10] [ 3702.004259][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3702.004259][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3702.004259][ T10] ipv6_find_idev+0x102/0x170 [ 3702.004259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.004259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.004259][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.004259][ T10] netlink_unicast+0x449/0x710 [ 3702.004259][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.004259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.004259][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.004259][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.004259][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.004259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.004259][ T10] [ 3702.005780][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3702.005780][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3702.005780][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3702.005780][ T10] ipv6_find_idev+0x102/0x170 [ 3702.005780][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.005780][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.005780][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.005780][ T10] netlink_unicast+0x449/0x710 [ 3702.005780][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.005780][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.005780][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.005780][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.005780][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.005780][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.005780][ T10] [ 3702.007447][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3702.007729][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3702.007729][ T10] netdev_get_by_index+0x5e/0x80 [ 3702.007729][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3702.007729][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3702.007729][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3702.007729][ T10] ipv6_add_addr+0x411/0x2000 [ 3702.007729][ T10] inet6_addr_add+0x30e/0xa40 [ 3702.007729][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3702.007729][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.007729][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.007729][ T10] netlink_unicast+0x449/0x710 [ 3702.007729][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.007729][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.007729][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.007729][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.007729][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.007729][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.007729][ T10] [ 3702.009714][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3702.009714][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3702.009714][ T10] ipv6_find_idev+0x102/0x170 [ 3702.009714][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.009714][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.009714][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.009714][ T10] netlink_unicast+0x449/0x710 [ 3702.009714][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.009714][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.009714][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.009714][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.009714][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.009714][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.009714][ T10] [ 3702.011237][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3702.011237][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3702.011237][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3702.011237][ T10] ipv6_find_idev+0x102/0x170 [ 3702.011237][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.011237][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.011237][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.011237][ T10] netlink_unicast+0x449/0x710 [ 3702.011237][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.011237][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.011237][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.011237][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.011237][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.011237][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.011237][ T10] [ 3702.012924][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3702.013185][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3702.013185][ T10] netdev_get_by_index+0x5e/0x80 [ 3702.013185][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3702.013185][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3702.013185][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3702.013185][ T10] ipv6_add_addr+0x411/0x2000 [ 3702.013185][ T10] inet6_addr_add+0x30e/0xa40 [ 3702.013185][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3702.013185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.013185][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.013185][ T10] netlink_unicast+0x449/0x710 [ 3702.013185][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.013185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.013185][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.013185][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.013185][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.013185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.013185][ T10] [ 3702.015156][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3702.015156][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3702.015156][ T10] ipv6_find_idev+0x102/0x170 [ 3702.015156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.015156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.015156][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.015156][ T10] netlink_unicast+0x449/0x710 [ 3702.015156][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.015156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.015156][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.015156][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.015156][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.015156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.015156][ T10] [ 3702.016678][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3702.016678][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3702.016678][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3702.016678][ T10] ipv6_find_idev+0x102/0x170 [ 3702.016678][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.016678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.016678][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.016678][ T10] netlink_unicast+0x449/0x710 [ 3702.016678][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.016678][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.016678][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.016678][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.016678][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.016678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.016678][ T10] [ 3702.019120][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3702.019382][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3702.019382][ T10] netdev_get_by_index+0x5e/0x80 [ 3702.019382][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3702.019382][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3702.019382][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3702.019382][ T10] ipv6_add_addr+0x411/0x2000 [ 3702.019382][ T10] inet6_addr_add+0x30e/0xa40 [ 3702.019382][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3702.019382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.019382][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.019382][ T10] netlink_unicast+0x449/0x710 [ 3702.019382][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.019382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.019382][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.019382][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.019382][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.019382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.019382][ T10] [ 3702.021348][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3702.021348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3702.021348][ T10] ipv6_find_idev+0x102/0x170 [ 3702.021348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.021348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.021348][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.021348][ T10] netlink_unicast+0x449/0x710 [ 3702.021348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.021348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.021348][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.021348][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.021348][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.021348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.021348][ T10] [ 3702.022863][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3702.022863][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3702.022863][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3702.022863][ T10] ipv6_find_idev+0x102/0x170 [ 3702.022863][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.022863][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.022863][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.022863][ T10] netlink_unicast+0x449/0x710 [ 3702.022863][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.022863][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.022863][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.022863][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.022863][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.022863][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.022863][ T10] [ 3702.024571][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3702.024898][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3702.024898][ T10] netdev_get_by_index+0x5e/0x80 [ 3702.024898][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3702.024898][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3702.024898][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3702.024898][ T10] ipv6_add_addr+0x411/0x2000 [ 3702.024898][ T10] inet6_addr_add+0x30e/0xa40 [ 3702.024898][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3702.024898][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.024898][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.024898][ T10] netlink_unicast+0x449/0x710 [ 3702.024898][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.024898][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.024898][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.024898][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.024898][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.024898][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.024898][ T10] [ 3702.027092][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3702.027092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3702.027092][ T10] ipv6_find_idev+0x102/0x170 [ 3702.027092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.027092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.027092][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.027092][ T10] netlink_unicast+0x449/0x710 [ 3702.027092][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.027092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.027092][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.027092][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.027092][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.027092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.027092][ T10] [ 3702.028787][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3702.028787][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3702.028787][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3702.028787][ T10] ipv6_find_idev+0x102/0x170 [ 3702.028787][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.028787][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.028787][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.028787][ T10] netlink_unicast+0x449/0x710 [ 3702.028787][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.028787][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.028787][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.028787][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.028787][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.028787][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.028787][ T10] [ 3702.030666][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3702.030933][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3702.030933][ T10] netdev_get_by_index+0x5e/0x80 [ 3702.030933][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3702.030933][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3702.030933][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3702.030933][ T10] ipv6_add_addr+0x411/0x2000 [ 3702.030933][ T10] inet6_addr_add+0x30e/0xa40 [ 3702.030933][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3702.030933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.030933][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.030933][ T10] netlink_unicast+0x449/0x710 [ 3702.030933][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.030933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.030933][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.030933][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.030933][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.030933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.030933][ T10] [ 3702.033142][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3702.033142][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3702.033142][ T10] ipv6_find_idev+0x102/0x170 [ 3702.033142][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.033142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.033142][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.033142][ T10] netlink_unicast+0x449/0x710 [ 3702.033142][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.033142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.033142][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.033142][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.033142][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.033142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.033142][ T10] [ 3702.034854][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3702.034854][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3702.034854][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3702.034854][ T10] ipv6_find_idev+0x102/0x170 [ 3702.034854][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.034854][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.034854][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.034854][ T10] netlink_unicast+0x449/0x710 [ 3702.034854][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.034854][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.034854][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.034854][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.034854][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.034854][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.034854][ T10] [ 3702.036796][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3702.037066][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3702.037066][ T10] netdev_get_by_index+0x5e/0x80 [ 3702.037066][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3702.037066][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3702.037066][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3702.037066][ T10] ipv6_add_addr+0x411/0x2000 [ 3702.037066][ T10] inet6_addr_add+0x30e/0xa40 [ 3702.037066][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3702.037066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.037066][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.037066][ T10] netlink_unicast+0x449/0x710 [ 3702.037066][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.037066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.037066][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.037066][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.037066][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.037066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.037066][ T10] [ 3702.039275][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3702.039275][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3702.039275][ T10] ipv6_find_idev+0x102/0x170 [ 3702.039275][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.039275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.039275][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.039275][ T10] netlink_unicast+0x449/0x710 [ 3702.039275][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.039275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.039275][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.039275][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.039275][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.039275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.039275][ T10] [ 3702.040980][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3702.040980][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3702.040980][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3702.040980][ T10] ipv6_find_idev+0x102/0x170 [ 3702.040980][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3702.040980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3702.040980][ T10] netlink_rcv_skb+0x130/0x360 [ 3702.040980][ T10] netlink_unicast+0x449/0x710 [ 3702.040980][ T10] netlink_sendmsg+0x723/0xbe0 [ 3702.040980][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3702.040980][ T10] ___sys_sendmsg+0xee/0x170 [ 3702.040980][ T10] __sys_sendmsg+0xcd/0x170 [ 3702.040980][ T10] do_syscall_64+0xc6/0x1e0 [ 3702.040980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3702.040980][ T10] [ 3712.115784][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3712.116315][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3712.116315][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.116315][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.116315][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.116315][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.116315][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.116315][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.116315][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.116315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.116315][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.116315][ T10] netlink_unicast+0x449/0x710 [ 3712.116315][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.116315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.116315][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.116315][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.116315][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.116315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.116315][ T10] [ 3712.118329][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3712.118329][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.118329][ T10] ipv6_find_idev+0x102/0x170 [ 3712.118329][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.118329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.118329][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.118329][ T10] netlink_unicast+0x449/0x710 [ 3712.118329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.118329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.118329][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.118329][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.118329][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.118329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.118329][ T10] [ 3712.119864][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3712.119864][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.119864][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.119864][ T10] ipv6_find_idev+0x102/0x170 [ 3712.119864][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.119864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.119864][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.119864][ T10] netlink_unicast+0x449/0x710 [ 3712.119864][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.119864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.119864][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.119864][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.119864][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.119864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.119864][ T10] [ 3712.121574][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3712.121866][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3712.121866][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.121866][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.121866][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.121866][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.121866][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.121866][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.121866][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.121866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.121866][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.121866][ T10] netlink_unicast+0x449/0x710 [ 3712.121866][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.121866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.121866][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.121866][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.121866][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.121866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.121866][ T10] [ 3712.123860][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3712.123860][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.123860][ T10] ipv6_find_idev+0x102/0x170 [ 3712.123860][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.123860][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.123860][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.123860][ T10] netlink_unicast+0x449/0x710 [ 3712.123860][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.123860][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.123860][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.123860][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.123860][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.123860][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.123860][ T10] [ 3712.125395][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3712.125395][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.125395][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.125395][ T10] ipv6_find_idev+0x102/0x170 [ 3712.125395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.125395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.125395][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.125395][ T10] netlink_unicast+0x449/0x710 [ 3712.125395][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.125395][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.125395][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.125395][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.125395][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.125395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.125395][ T10] [ 3712.127086][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3712.127350][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3712.127350][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.127350][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.127350][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.127350][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.127350][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.127350][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.127350][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.127350][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.127350][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.127350][ T10] netlink_unicast+0x449/0x710 [ 3712.127350][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.127350][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.127350][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.127350][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.127350][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.127350][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.127350][ T10] [ 3712.129353][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3712.129353][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.129353][ T10] ipv6_find_idev+0x102/0x170 [ 3712.129353][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.129353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.129353][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.129353][ T10] netlink_unicast+0x449/0x710 [ 3712.129353][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.129353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.129353][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.129353][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.129353][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.129353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.129353][ T10] [ 3712.130997][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3712.130997][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.130997][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.130997][ T10] ipv6_find_idev+0x102/0x170 [ 3712.130997][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.130997][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.130997][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.130997][ T10] netlink_unicast+0x449/0x710 [ 3712.130997][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.130997][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.130997][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.130997][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.130997][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.130997][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.130997][ T10] [ 3712.133054][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3712.133324][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3712.133324][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.133324][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.133324][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.133324][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.133324][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.133324][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.133324][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.133324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.133324][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.133324][ T10] netlink_unicast+0x449/0x710 [ 3712.133324][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.133324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.133324][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.133324][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.133324][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.133324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.133324][ T10] [ 3712.135306][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3712.135306][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.135306][ T10] ipv6_find_idev+0x102/0x170 [ 3712.135306][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.135306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.135306][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.135306][ T10] netlink_unicast+0x449/0x710 [ 3712.135306][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.135306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.135306][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.135306][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.135306][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.135306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.135306][ T10] [ 3712.136833][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3712.136833][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.136833][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.136833][ T10] ipv6_find_idev+0x102/0x170 [ 3712.136833][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.136833][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.136833][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.136833][ T10] netlink_unicast+0x449/0x710 [ 3712.136833][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.136833][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.136833][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.136833][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.136833][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.136833][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.136833][ T10] [ 3712.138922][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3712.139571][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3712.139571][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.139571][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.139571][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.139571][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.139571][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.139571][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.139571][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.139571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.139571][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.139571][ T10] netlink_unicast+0x449/0x710 [ 3712.139571][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.139571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.139571][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.139571][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.139571][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.139571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.139571][ T10] [ 3712.141553][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3712.141553][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.141553][ T10] ipv6_find_idev+0x102/0x170 [ 3712.141553][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.141553][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.141553][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.141553][ T10] netlink_unicast+0x449/0x710 [ 3712.141553][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.141553][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.141553][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.141553][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.141553][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.141553][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.141553][ T10] [ 3712.143085][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3712.143085][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.143085][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.143085][ T10] ipv6_find_idev+0x102/0x170 [ 3712.143085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.143085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.143085][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.143085][ T10] netlink_unicast+0x449/0x710 [ 3712.143085][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.143085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.143085][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.143085][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.143085][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.143085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.143085][ T10] [ 3712.144766][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3712.145034][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3712.145034][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.145034][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.145034][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.145034][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.145034][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.145034][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.145034][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.145034][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.145034][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.145034][ T10] netlink_unicast+0x449/0x710 [ 3712.145034][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.145034][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.145034][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.145034][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.145034][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.145034][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.145034][ T10] [ 3712.147020][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3712.147020][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.147020][ T10] ipv6_find_idev+0x102/0x170 [ 3712.147020][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.147020][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.147020][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.147020][ T10] netlink_unicast+0x449/0x710 [ 3712.147020][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.147020][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.147020][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.147020][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.147020][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.147020][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.147020][ T10] [ 3712.148551][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3712.148551][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.148551][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.148551][ T10] ipv6_find_idev+0x102/0x170 [ 3712.148551][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.148551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.148551][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.148551][ T10] netlink_unicast+0x449/0x710 [ 3712.148551][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.148551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.148551][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.148551][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.148551][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.148551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.148551][ T10] [ 3712.150523][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3712.150844][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3712.150844][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.150844][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.150844][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.150844][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.150844][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.150844][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.150844][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.150844][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.150844][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.150844][ T10] netlink_unicast+0x449/0x710 [ 3712.150844][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.150844][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.150844][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.150844][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.150844][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.150844][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.150844][ T10] [ 3712.153021][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3712.153021][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.153021][ T10] ipv6_find_idev+0x102/0x170 [ 3712.153021][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.153021][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.153021][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.153021][ T10] netlink_unicast+0x449/0x710 [ 3712.153021][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.153021][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.153021][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.153021][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.153021][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.153021][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.153021][ T10] [ 3712.154736][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3712.154736][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.154736][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.154736][ T10] ipv6_find_idev+0x102/0x170 [ 3712.154736][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.154736][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.154736][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.154736][ T10] netlink_unicast+0x449/0x710 [ 3712.154736][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.154736][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.154736][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.154736][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.154736][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.154736][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.154736][ T10] [ 3712.156764][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3712.157085][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3712.157085][ T10] netdev_get_by_index+0x5e/0x80 [ 3712.157085][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3712.157085][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3712.157085][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3712.157085][ T10] ipv6_add_addr+0x411/0x2000 [ 3712.157085][ T10] inet6_addr_add+0x30e/0xa40 [ 3712.157085][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3712.157085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.157085][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.157085][ T10] netlink_unicast+0x449/0x710 [ 3712.157085][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.157085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.157085][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.157085][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.157085][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.157085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.157085][ T10] [ 3712.159247][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3712.159247][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3712.159247][ T10] ipv6_find_idev+0x102/0x170 [ 3712.159247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.159247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.159247][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.159247][ T10] netlink_unicast+0x449/0x710 [ 3712.159247][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.159247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.159247][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.159247][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.159247][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.159247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.159247][ T10] [ 3712.161037][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3712.161037][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3712.161037][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3712.161037][ T10] ipv6_find_idev+0x102/0x170 [ 3712.161037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3712.161037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3712.161037][ T10] netlink_rcv_skb+0x130/0x360 [ 3712.161037][ T10] netlink_unicast+0x449/0x710 [ 3712.161037][ T10] netlink_sendmsg+0x723/0xbe0 [ 3712.161037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3712.161037][ T10] ___sys_sendmsg+0xee/0x170 [ 3712.161037][ T10] __sys_sendmsg+0xcd/0x170 [ 3712.161037][ T10] do_syscall_64+0xc6/0x1e0 [ 3712.161037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3712.161037][ T10] [ 3722.403774][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3722.404300][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3722.404300][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.404300][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.404300][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.404300][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.404300][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.404300][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.404300][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.404300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.404300][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.404300][ T10] netlink_unicast+0x449/0x710 [ 3722.404300][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.404300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.404300][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.404300][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.404300][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.404300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.404300][ T10] [ 3722.406332][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3722.406332][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.406332][ T10] ipv6_find_idev+0x102/0x170 [ 3722.406332][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.406332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.406332][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.406332][ T10] netlink_unicast+0x449/0x710 [ 3722.406332][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.406332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.406332][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.406332][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.406332][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.406332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.406332][ T10] [ 3722.407875][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3722.407875][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.407875][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.407875][ T10] ipv6_find_idev+0x102/0x170 [ 3722.407875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.407875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.407875][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.407875][ T10] netlink_unicast+0x449/0x710 [ 3722.407875][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.407875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.407875][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.407875][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.407875][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.407875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.407875][ T10] [ 3722.409593][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3722.409888][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3722.409888][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.409888][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.409888][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.409888][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.409888][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.409888][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.409888][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.409888][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.409888][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.409888][ T10] netlink_unicast+0x449/0x710 [ 3722.409888][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.409888][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.409888][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.409888][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.409888][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.409888][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.409888][ T10] [ 3722.411887][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3722.411887][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.411887][ T10] ipv6_find_idev+0x102/0x170 [ 3722.411887][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.411887][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.411887][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.411887][ T10] netlink_unicast+0x449/0x710 [ 3722.411887][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.411887][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.411887][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.411887][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.411887][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.411887][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.411887][ T10] [ 3722.413452][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3722.413452][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.413452][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.413452][ T10] ipv6_find_idev+0x102/0x170 [ 3722.413452][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.413452][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.413452][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.413452][ T10] netlink_unicast+0x449/0x710 [ 3722.413452][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.413452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.413452][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.413452][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.413452][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.413452][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.413452][ T10] [ 3722.415150][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3722.415415][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3722.415415][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.415415][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.415415][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.415415][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.415415][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.415415][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.415415][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.415415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.415415][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.415415][ T10] netlink_unicast+0x449/0x710 [ 3722.415415][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.415415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.415415][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.415415][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.415415][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.415415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.415415][ T10] [ 3722.417409][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3722.417409][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.417409][ T10] ipv6_find_idev+0x102/0x170 [ 3722.417409][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.417409][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.417409][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.417409][ T10] netlink_unicast+0x449/0x710 [ 3722.417409][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.417409][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.417409][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.417409][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.417409][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.417409][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.417409][ T10] [ 3722.418943][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3722.418943][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.418943][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.418943][ T10] ipv6_find_idev+0x102/0x170 [ 3722.418943][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.418943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.418943][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.418943][ T10] netlink_unicast+0x449/0x710 [ 3722.418943][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.418943][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.418943][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.418943][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.418943][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.418943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.418943][ T10] [ 3722.420645][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3722.420924][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3722.420924][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.420924][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.420924][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.420924][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.420924][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.420924][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.420924][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.420924][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.420924][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.420924][ T10] netlink_unicast+0x449/0x710 [ 3722.420924][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.420924][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.420924][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.420924][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.420924][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.420924][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.420924][ T10] [ 3722.422921][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3722.422921][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.422921][ T10] ipv6_find_idev+0x102/0x170 [ 3722.422921][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.422921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.422921][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.422921][ T10] netlink_unicast+0x449/0x710 [ 3722.422921][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.422921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.422921][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.422921][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.422921][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.422921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.422921][ T10] [ 3722.424453][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3722.424453][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.424453][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.424453][ T10] ipv6_find_idev+0x102/0x170 [ 3722.424453][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.424453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.424453][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.424453][ T10] netlink_unicast+0x449/0x710 [ 3722.424453][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.424453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.424453][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.424453][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.424453][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.424453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.424453][ T10] [ 3722.426529][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3722.427151][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3722.427151][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.427151][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.427151][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.427151][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.427151][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.427151][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.427151][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.427151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.427151][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.427151][ T10] netlink_unicast+0x449/0x710 [ 3722.427151][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.427151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.427151][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.427151][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.427151][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.427151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.427151][ T10] [ 3722.429132][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3722.429132][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.429132][ T10] ipv6_find_idev+0x102/0x170 [ 3722.429132][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.429132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.429132][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.429132][ T10] netlink_unicast+0x449/0x710 [ 3722.429132][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.429132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.429132][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.429132][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.429132][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.429132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.429132][ T10] [ 3722.430659][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3722.430659][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.430659][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.430659][ T10] ipv6_find_idev+0x102/0x170 [ 3722.430659][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.430659][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.430659][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.430659][ T10] netlink_unicast+0x449/0x710 [ 3722.430659][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.430659][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.430659][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.430659][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.430659][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.430659][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.430659][ T10] [ 3722.432339][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3722.432608][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3722.432608][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.432608][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.432608][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.432608][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.432608][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.432608][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.432608][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.432608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.432608][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.432608][ T10] netlink_unicast+0x449/0x710 [ 3722.432608][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.432608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.432608][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.432608][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.432608][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.432608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.432608][ T10] [ 3722.434611][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3722.434611][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.434611][ T10] ipv6_find_idev+0x102/0x170 [ 3722.434611][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.434611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.434611][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.434611][ T10] netlink_unicast+0x449/0x710 [ 3722.434611][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.434611][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.434611][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.434611][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.434611][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.434611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.434611][ T10] [ 3722.436211][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3722.436211][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.436211][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.436211][ T10] ipv6_find_idev+0x102/0x170 [ 3722.436211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.436211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.436211][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.436211][ T10] netlink_unicast+0x449/0x710 [ 3722.436211][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.436211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.436211][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.436211][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.436211][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.436211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.436211][ T10] [ 3722.438106][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3722.438424][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3722.438424][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.438424][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.438424][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.438424][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.438424][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.438424][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.438424][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.438424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.438424][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.438424][ T10] netlink_unicast+0x449/0x710 [ 3722.438424][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.438424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.438424][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.438424][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.438424][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.438424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.438424][ T10] [ 3722.440639][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3722.440639][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.440639][ T10] ipv6_find_idev+0x102/0x170 [ 3722.440639][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.440639][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.440639][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.440639][ T10] netlink_unicast+0x449/0x710 [ 3722.440639][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.440639][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.440639][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.440639][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.440639][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.440639][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.440639][ T10] [ 3722.442361][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3722.442361][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.442361][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.442361][ T10] ipv6_find_idev+0x102/0x170 [ 3722.442361][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.442361][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.442361][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.442361][ T10] netlink_unicast+0x449/0x710 [ 3722.442361][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.442361][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.442361][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.442361][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.442361][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.442361][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.442361][ T10] [ 3722.444872][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3722.445200][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3722.445200][ T10] netdev_get_by_index+0x5e/0x80 [ 3722.445200][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3722.445200][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3722.445200][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3722.445200][ T10] ipv6_add_addr+0x411/0x2000 [ 3722.445200][ T10] inet6_addr_add+0x30e/0xa40 [ 3722.445200][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3722.445200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.445200][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.445200][ T10] netlink_unicast+0x449/0x710 [ 3722.445200][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.445200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.445200][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.445200][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.445200][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.445200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.445200][ T10] [ 3722.447750][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3722.447750][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3722.447750][ T10] ipv6_find_idev+0x102/0x170 [ 3722.447750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.447750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.447750][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.447750][ T10] netlink_unicast+0x449/0x710 [ 3722.447750][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.447750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.447750][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.447750][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.447750][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.447750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.447750][ T10] [ 3722.449456][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3722.449456][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3722.449456][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3722.449456][ T10] ipv6_find_idev+0x102/0x170 [ 3722.449456][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3722.449456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3722.449456][ T10] netlink_rcv_skb+0x130/0x360 [ 3722.449456][ T10] netlink_unicast+0x449/0x710 [ 3722.449456][ T10] netlink_sendmsg+0x723/0xbe0 [ 3722.449456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3722.449456][ T10] ___sys_sendmsg+0xee/0x170 [ 3722.449456][ T10] __sys_sendmsg+0xcd/0x170 [ 3722.449456][ T10] do_syscall_64+0xc6/0x1e0 [ 3722.449456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3722.449456][ T10] [ 3732.691882][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3732.692396][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3732.692396][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.692396][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.692396][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.692396][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.692396][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.692396][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.692396][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.692396][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.692396][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.692396][ T10] netlink_unicast+0x449/0x710 [ 3732.692396][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.692396][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.692396][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.692396][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.692396][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.692396][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.692396][ T10] [ 3732.694793][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3732.694793][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.694793][ T10] ipv6_find_idev+0x102/0x170 [ 3732.694793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.694793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.694793][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.694793][ T10] netlink_unicast+0x449/0x710 [ 3732.694793][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.694793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.694793][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.694793][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.694793][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.694793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.694793][ T10] [ 3732.696321][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3732.696321][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.696321][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.696321][ T10] ipv6_find_idev+0x102/0x170 [ 3732.696321][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.696321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.696321][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.696321][ T10] netlink_unicast+0x449/0x710 [ 3732.696321][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.696321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.696321][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.696321][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.696321][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.696321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.696321][ T10] [ 3732.698006][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3732.698275][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3732.698275][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.698275][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.698275][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.698275][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.698275][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.698275][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.698275][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.698275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.698275][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.698275][ T10] netlink_unicast+0x449/0x710 [ 3732.698275][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.698275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.698275][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.698275][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.698275][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.698275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.698275][ T10] [ 3732.700247][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3732.700247][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.700247][ T10] ipv6_find_idev+0x102/0x170 [ 3732.700247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.700247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.700247][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.700247][ T10] netlink_unicast+0x449/0x710 [ 3732.700247][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.700247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.700247][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.700247][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.700247][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.700247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.700247][ T10] [ 3732.701768][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3732.701768][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.701768][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.701768][ T10] ipv6_find_idev+0x102/0x170 [ 3732.701768][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.701768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.701768][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.701768][ T10] netlink_unicast+0x449/0x710 [ 3732.701768][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.701768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.701768][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.701768][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.701768][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.701768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.701768][ T10] [ 3732.703449][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3732.703722][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3732.703722][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.703722][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.703722][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.703722][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.703722][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.703722][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.703722][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.703722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.703722][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.703722][ T10] netlink_unicast+0x449/0x710 [ 3732.703722][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.703722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.703722][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.703722][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.703722][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.703722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.703722][ T10] [ 3732.705694][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3732.705694][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.705694][ T10] ipv6_find_idev+0x102/0x170 [ 3732.705694][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.705694][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.705694][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.705694][ T10] netlink_unicast+0x449/0x710 [ 3732.705694][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.705694][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.705694][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.705694][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.705694][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.705694][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.705694][ T10] [ 3732.707212][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3732.707212][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.707212][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.707212][ T10] ipv6_find_idev+0x102/0x170 [ 3732.707212][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.707212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.707212][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.707212][ T10] netlink_unicast+0x449/0x710 [ 3732.707212][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.707212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.707212][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.707212][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.707212][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.707212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.707212][ T10] [ 3732.708881][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3732.709142][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3732.709142][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.709142][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.709142][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.709142][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.709142][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.709142][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.709142][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.709142][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.709142][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.709142][ T10] netlink_unicast+0x449/0x710 [ 3732.709142][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.709142][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.709142][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.709142][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.709142][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.709142][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.709142][ T10] [ 3732.711121][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3732.711121][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.711121][ T10] ipv6_find_idev+0x102/0x170 [ 3732.711121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.711121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.711121][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.711121][ T10] netlink_unicast+0x449/0x710 [ 3732.711121][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.711121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.711121][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.711121][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.711121][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.711121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.711121][ T10] [ 3732.712665][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3732.712665][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.712665][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.712665][ T10] ipv6_find_idev+0x102/0x170 [ 3732.712665][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.712665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.712665][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.712665][ T10] netlink_unicast+0x449/0x710 [ 3732.712665][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.712665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.712665][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.712665][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.712665][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.712665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.712665][ T10] [ 3732.714753][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3732.715014][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3732.715014][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.715014][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.715014][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.715014][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.715014][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.715014][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.715014][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.715014][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.715014][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.715014][ T10] netlink_unicast+0x449/0x710 [ 3732.715014][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.715014][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.715014][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.715014][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.715014][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.715014][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.715014][ T10] [ 3732.716975][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3732.716975][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.716975][ T10] ipv6_find_idev+0x102/0x170 [ 3732.716975][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.716975][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.716975][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.716975][ T10] netlink_unicast+0x449/0x710 [ 3732.716975][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.716975][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.716975][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.716975][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.716975][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.716975][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.716975][ T10] [ 3732.718500][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3732.718500][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.718500][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.718500][ T10] ipv6_find_idev+0x102/0x170 [ 3732.718500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.718500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.718500][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.718500][ T10] netlink_unicast+0x449/0x710 [ 3732.718500][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.718500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.718500][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.718500][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.718500][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.718500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.718500][ T10] [ 3732.720200][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3732.720466][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3732.720466][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.720466][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.720466][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.720466][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.720466][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.720466][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.720466][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.720466][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.720466][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.720466][ T10] netlink_unicast+0x449/0x710 [ 3732.720466][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.720466][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.720466][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.720466][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.720466][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.720466][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.720466][ T10] [ 3732.722566][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3732.722566][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.722566][ T10] ipv6_find_idev+0x102/0x170 [ 3732.722566][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.722566][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.722566][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.722566][ T10] netlink_unicast+0x449/0x710 [ 3732.722566][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.722566][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.722566][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.722566][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.722566][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.722566][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.722566][ T10] [ 3732.724273][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3732.724273][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.724273][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.724273][ T10] ipv6_find_idev+0x102/0x170 [ 3732.724273][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.724273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.724273][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.724273][ T10] netlink_unicast+0x449/0x710 [ 3732.724273][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.724273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.724273][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.724273][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.724273][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.724273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.724273][ T10] [ 3732.726161][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3732.726427][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3732.726427][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.726427][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.726427][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.726427][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.726427][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.726427][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.726427][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.726427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.726427][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.726427][ T10] netlink_unicast+0x449/0x710 [ 3732.726427][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.726427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.726427][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.726427][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.726427][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.726427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.726427][ T10] [ 3732.728643][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3732.728643][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.728643][ T10] ipv6_find_idev+0x102/0x170 [ 3732.728643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.728643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.728643][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.728643][ T10] netlink_unicast+0x449/0x710 [ 3732.728643][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.728643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.728643][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.728643][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.728643][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.728643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.728643][ T10] [ 3732.730338][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3732.730338][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.730338][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.730338][ T10] ipv6_find_idev+0x102/0x170 [ 3732.730338][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.730338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.730338][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.730338][ T10] netlink_unicast+0x449/0x710 [ 3732.730338][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.730338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.730338][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.730338][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.730338][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.730338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.730338][ T10] [ 3732.732273][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3732.732536][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3732.732536][ T10] netdev_get_by_index+0x5e/0x80 [ 3732.732536][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3732.732536][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3732.732536][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3732.732536][ T10] ipv6_add_addr+0x411/0x2000 [ 3732.732536][ T10] inet6_addr_add+0x30e/0xa40 [ 3732.732536][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3732.732536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.732536][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.732536][ T10] netlink_unicast+0x449/0x710 [ 3732.732536][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.732536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.732536][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.732536][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.732536][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.732536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.732536][ T10] [ 3732.734684][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3732.734684][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3732.734684][ T10] ipv6_find_idev+0x102/0x170 [ 3732.734684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.734684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.734684][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.734684][ T10] netlink_unicast+0x449/0x710 [ 3732.734684][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.734684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.734684][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.734684][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.734684][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.734684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.734684][ T10] [ 3732.736383][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3732.736383][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3732.736383][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3732.736383][ T10] ipv6_find_idev+0x102/0x170 [ 3732.736383][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3732.736383][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3732.736383][ T10] netlink_rcv_skb+0x130/0x360 [ 3732.736383][ T10] netlink_unicast+0x449/0x710 [ 3732.736383][ T10] netlink_sendmsg+0x723/0xbe0 [ 3732.736383][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3732.736383][ T10] ___sys_sendmsg+0xee/0x170 [ 3732.736383][ T10] __sys_sendmsg+0xcd/0x170 [ 3732.736383][ T10] do_syscall_64+0xc6/0x1e0 [ 3732.736383][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3732.736383][ T10] [ 3742.987740][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3742.988278][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3742.988278][ T10] netdev_get_by_index+0x5e/0x80 [ 3742.988278][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3742.988278][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3742.988278][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3742.988278][ T10] ipv6_add_addr+0x411/0x2000 [ 3742.988278][ T10] inet6_addr_add+0x30e/0xa40 [ 3742.988278][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3742.988278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3742.988278][ T10] netlink_rcv_skb+0x130/0x360 [ 3742.988278][ T10] netlink_unicast+0x449/0x710 [ 3742.988278][ T10] netlink_sendmsg+0x723/0xbe0 [ 3742.988278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3742.988278][ T10] ___sys_sendmsg+0xee/0x170 [ 3742.988278][ T10] __sys_sendmsg+0xcd/0x170 [ 3742.988278][ T10] do_syscall_64+0xc6/0x1e0 [ 3742.988278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3742.988278][ T10] [ 3742.990713][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3742.990713][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3742.990713][ T10] ipv6_find_idev+0x102/0x170 [ 3742.990713][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3742.990713][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3742.990713][ T10] netlink_rcv_skb+0x130/0x360 [ 3742.990713][ T10] netlink_unicast+0x449/0x710 [ 3742.990713][ T10] netlink_sendmsg+0x723/0xbe0 [ 3742.990713][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3742.990713][ T10] ___sys_sendmsg+0xee/0x170 [ 3742.990713][ T10] __sys_sendmsg+0xcd/0x170 [ 3742.990713][ T10] do_syscall_64+0xc6/0x1e0 [ 3742.990713][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3742.990713][ T10] [ 3742.992447][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3742.992447][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3742.992447][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3742.992447][ T10] ipv6_find_idev+0x102/0x170 [ 3742.992447][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3742.992447][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3742.992447][ T10] netlink_rcv_skb+0x130/0x360 [ 3742.992447][ T10] netlink_unicast+0x449/0x710 [ 3742.992447][ T10] netlink_sendmsg+0x723/0xbe0 [ 3742.992447][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3742.992447][ T10] ___sys_sendmsg+0xee/0x170 [ 3742.992447][ T10] __sys_sendmsg+0xcd/0x170 [ 3742.992447][ T10] do_syscall_64+0xc6/0x1e0 [ 3742.992447][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3742.992447][ T10] [ 3742.994339][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3742.994627][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3742.994627][ T10] netdev_get_by_index+0x5e/0x80 [ 3742.994627][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3742.994627][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3742.994627][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3742.994627][ T10] ipv6_add_addr+0x411/0x2000 [ 3742.994627][ T10] inet6_addr_add+0x30e/0xa40 [ 3742.994627][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3742.994627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3742.994627][ T10] netlink_rcv_skb+0x130/0x360 [ 3742.994627][ T10] netlink_unicast+0x449/0x710 [ 3742.994627][ T10] netlink_sendmsg+0x723/0xbe0 [ 3742.994627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3742.994627][ T10] ___sys_sendmsg+0xee/0x170 [ 3742.994627][ T10] __sys_sendmsg+0xcd/0x170 [ 3742.994627][ T10] do_syscall_64+0xc6/0x1e0 [ 3742.994627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3742.994627][ T10] [ 3742.996793][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3742.996793][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3742.996793][ T10] ipv6_find_idev+0x102/0x170 [ 3742.996793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3742.996793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3742.996793][ T10] netlink_rcv_skb+0x130/0x360 [ 3742.996793][ T10] netlink_unicast+0x449/0x710 [ 3742.996793][ T10] netlink_sendmsg+0x723/0xbe0 [ 3742.996793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3742.996793][ T10] ___sys_sendmsg+0xee/0x170 [ 3742.996793][ T10] __sys_sendmsg+0xcd/0x170 [ 3742.996793][ T10] do_syscall_64+0xc6/0x1e0 [ 3742.996793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3742.996793][ T10] [ 3742.998584][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3742.998584][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3742.998584][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3742.998584][ T10] ipv6_find_idev+0x102/0x170 [ 3742.998584][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3742.998584][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3742.998584][ T10] netlink_rcv_skb+0x130/0x360 [ 3742.998584][ T10] netlink_unicast+0x449/0x710 [ 3742.998584][ T10] netlink_sendmsg+0x723/0xbe0 [ 3742.998584][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3742.998584][ T10] ___sys_sendmsg+0xee/0x170 [ 3742.998584][ T10] __sys_sendmsg+0xcd/0x170 [ 3742.998584][ T10] do_syscall_64+0xc6/0x1e0 [ 3742.998584][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3742.998584][ T10] [ 3743.000529][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3743.000854][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3743.000854][ T10] netdev_get_by_index+0x5e/0x80 [ 3743.000854][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3743.000854][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3743.000854][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3743.000854][ T10] ipv6_add_addr+0x411/0x2000 [ 3743.000854][ T10] inet6_addr_add+0x30e/0xa40 [ 3743.000854][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3743.000854][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.000854][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.000854][ T10] netlink_unicast+0x449/0x710 [ 3743.000854][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.000854][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.000854][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.000854][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.000854][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.000854][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.000854][ T10] [ 3743.003258][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3743.003258][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3743.003258][ T10] ipv6_find_idev+0x102/0x170 [ 3743.003258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.003258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.003258][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.003258][ T10] netlink_unicast+0x449/0x710 [ 3743.003258][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.003258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.003258][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.003258][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.003258][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.003258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.003258][ T10] [ 3743.005081][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3743.005081][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3743.005081][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3743.005081][ T10] ipv6_find_idev+0x102/0x170 [ 3743.005081][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.005081][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.005081][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.005081][ T10] netlink_unicast+0x449/0x710 [ 3743.005081][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.005081][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.005081][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.005081][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.005081][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.005081][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.005081][ T10] [ 3743.007171][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3743.007486][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3743.007486][ T10] netdev_get_by_index+0x5e/0x80 [ 3743.007486][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3743.007486][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3743.007486][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3743.007486][ T10] ipv6_add_addr+0x411/0x2000 [ 3743.007486][ T10] inet6_addr_add+0x30e/0xa40 [ 3743.007486][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3743.007486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.007486][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.007486][ T10] netlink_unicast+0x449/0x710 [ 3743.007486][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.007486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.007486][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.007486][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.007486][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.007486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.007486][ T10] [ 3743.009865][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3743.009865][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3743.009865][ T10] ipv6_find_idev+0x102/0x170 [ 3743.009865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.009865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.009865][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.009865][ T10] netlink_unicast+0x449/0x710 [ 3743.009865][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.009865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.009865][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.009865][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.009865][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.009865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.009865][ T10] [ 3743.011634][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3743.011634][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3743.011634][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3743.011634][ T10] ipv6_find_idev+0x102/0x170 [ 3743.011634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.011634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.011634][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.011634][ T10] netlink_unicast+0x449/0x710 [ 3743.011634][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.011634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.011634][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.011634][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.011634][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.011634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.011634][ T10] [ 3743.014118][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3743.014435][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3743.014435][ T10] netdev_get_by_index+0x5e/0x80 [ 3743.014435][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3743.014435][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3743.014435][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3743.014435][ T10] ipv6_add_addr+0x411/0x2000 [ 3743.014435][ T10] inet6_addr_add+0x30e/0xa40 [ 3743.014435][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3743.014435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.014435][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.014435][ T10] netlink_unicast+0x449/0x710 [ 3743.014435][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.014435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.014435][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.014435][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.014435][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.014435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.014435][ T10] [ 3743.016651][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3743.016651][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3743.016651][ T10] ipv6_find_idev+0x102/0x170 [ 3743.016651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.016651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.016651][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.016651][ T10] netlink_unicast+0x449/0x710 [ 3743.016651][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.016651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.016651][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.016651][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.016651][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.016651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.016651][ T10] [ 3743.018303][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3743.018303][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3743.018303][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3743.018303][ T10] ipv6_find_idev+0x102/0x170 [ 3743.018303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.018303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.018303][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.018303][ T10] netlink_unicast+0x449/0x710 [ 3743.018303][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.018303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.018303][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.018303][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.018303][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.018303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.018303][ T10] [ 3743.020227][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3743.020511][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3743.020511][ T10] netdev_get_by_index+0x5e/0x80 [ 3743.020511][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3743.020511][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3743.020511][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3743.020511][ T10] ipv6_add_addr+0x411/0x2000 [ 3743.020511][ T10] inet6_addr_add+0x30e/0xa40 [ 3743.020511][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3743.020511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.020511][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.020511][ T10] netlink_unicast+0x449/0x710 [ 3743.020511][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.020511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.020511][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.020511][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.020511][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.020511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.020511][ T10] [ 3743.023060][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3743.023060][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3743.023060][ T10] ipv6_find_idev+0x102/0x170 [ 3743.023060][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.023060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.023060][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.023060][ T10] netlink_unicast+0x449/0x710 [ 3743.023060][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.023060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.023060][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.023060][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.023060][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.023060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.023060][ T10] [ 3743.025121][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3743.025121][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3743.025121][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3743.025121][ T10] ipv6_find_idev+0x102/0x170 [ 3743.025121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.025121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.025121][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.025121][ T10] netlink_unicast+0x449/0x710 [ 3743.025121][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.025121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.025121][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.025121][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.025121][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.025121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.025121][ T10] [ 3743.027333][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3743.027660][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3743.027660][ T10] netdev_get_by_index+0x5e/0x80 [ 3743.027660][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3743.027660][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3743.027660][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3743.027660][ T10] ipv6_add_addr+0x411/0x2000 [ 3743.027660][ T10] inet6_addr_add+0x30e/0xa40 [ 3743.027660][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3743.027660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.027660][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.027660][ T10] netlink_unicast+0x449/0x710 [ 3743.027660][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.027660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.027660][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.027660][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.027660][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.027660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.027660][ T10] [ 3743.030223][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3743.030223][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3743.030223][ T10] ipv6_find_idev+0x102/0x170 [ 3743.030223][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.030223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.030223][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.030223][ T10] netlink_unicast+0x449/0x710 [ 3743.030223][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.030223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.030223][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.030223][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.030223][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.030223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.030223][ T10] [ 3743.032146][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3743.032146][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3743.032146][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3743.032146][ T10] ipv6_find_idev+0x102/0x170 [ 3743.032146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.032146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.032146][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.032146][ T10] netlink_unicast+0x449/0x710 [ 3743.032146][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.032146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.032146][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.032146][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.032146][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.032146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.032146][ T10] [ 3743.034426][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3743.034842][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3743.034842][ T10] netdev_get_by_index+0x5e/0x80 [ 3743.034842][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3743.034842][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3743.034842][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3743.034842][ T10] ipv6_add_addr+0x411/0x2000 [ 3743.034842][ T10] inet6_addr_add+0x30e/0xa40 [ 3743.034842][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3743.034842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.034842][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.034842][ T10] netlink_unicast+0x449/0x710 [ 3743.034842][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.034842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.034842][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.034842][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.034842][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.034842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.034842][ T10] [ 3743.037449][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3743.037449][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3743.037449][ T10] ipv6_find_idev+0x102/0x170 [ 3743.037449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.037449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.037449][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.037449][ T10] netlink_unicast+0x449/0x710 [ 3743.037449][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.037449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.037449][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.037449][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.037449][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.037449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.037449][ T10] [ 3743.039469][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3743.039469][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3743.039469][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3743.039469][ T10] ipv6_find_idev+0x102/0x170 [ 3743.039469][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3743.039469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3743.039469][ T10] netlink_rcv_skb+0x130/0x360 [ 3743.039469][ T10] netlink_unicast+0x449/0x710 [ 3743.039469][ T10] netlink_sendmsg+0x723/0xbe0 [ 3743.039469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3743.039469][ T10] ___sys_sendmsg+0xee/0x170 [ 3743.039469][ T10] __sys_sendmsg+0xcd/0x170 [ 3743.039469][ T10] do_syscall_64+0xc6/0x1e0 [ 3743.039469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3743.039469][ T10] [ 3753.147761][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3753.148245][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3753.148245][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.148245][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.148245][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.148245][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.148245][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.148245][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.148245][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.148245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.148245][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.148245][ T10] netlink_unicast+0x449/0x710 [ 3753.148245][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.148245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.148245][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.148245][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.148245][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.148245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.148245][ T10] [ 3753.150487][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3753.150487][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.150487][ T10] ipv6_find_idev+0x102/0x170 [ 3753.150487][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.150487][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.150487][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.150487][ T10] netlink_unicast+0x449/0x710 [ 3753.150487][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.150487][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.150487][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.150487][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.150487][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.150487][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.150487][ T10] [ 3753.152214][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3753.152214][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.152214][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.152214][ T10] ipv6_find_idev+0x102/0x170 [ 3753.152214][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.152214][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.152214][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.152214][ T10] netlink_unicast+0x449/0x710 [ 3753.152214][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.152214][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.152214][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.152214][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.152214][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.152214][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.152214][ T10] [ 3753.154111][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3753.154404][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3753.154404][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.154404][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.154404][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.154404][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.154404][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.154404][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.154404][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.154404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.154404][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.154404][ T10] netlink_unicast+0x449/0x710 [ 3753.154404][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.154404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.154404][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.154404][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.154404][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.154404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.154404][ T10] [ 3753.156617][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3753.156617][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.156617][ T10] ipv6_find_idev+0x102/0x170 [ 3753.156617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.156617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.156617][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.156617][ T10] netlink_unicast+0x449/0x710 [ 3753.156617][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.156617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.156617][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.156617][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.156617][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.156617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.156617][ T10] [ 3753.158316][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3753.158316][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.158316][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.158316][ T10] ipv6_find_idev+0x102/0x170 [ 3753.158316][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.158316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.158316][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.158316][ T10] netlink_unicast+0x449/0x710 [ 3753.158316][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.158316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.158316][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.158316][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.158316][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.158316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.158316][ T10] [ 3753.160175][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3753.160474][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3753.160474][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.160474][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.160474][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.160474][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.160474][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.160474][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.160474][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.160474][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.160474][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.160474][ T10] netlink_unicast+0x449/0x710 [ 3753.160474][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.160474][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.160474][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.160474][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.160474][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.160474][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.160474][ T10] [ 3753.162693][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3753.162693][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.162693][ T10] ipv6_find_idev+0x102/0x170 [ 3753.162693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.162693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.162693][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.162693][ T10] netlink_unicast+0x449/0x710 [ 3753.162693][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.162693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.162693][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.162693][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.162693][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.162693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.162693][ T10] [ 3753.164365][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3753.164365][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.164365][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.164365][ T10] ipv6_find_idev+0x102/0x170 [ 3753.164365][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.164365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.164365][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.164365][ T10] netlink_unicast+0x449/0x710 [ 3753.164365][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.164365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.164365][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.164365][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.164365][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.164365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.164365][ T10] [ 3753.166225][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3753.166509][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3753.166509][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.166509][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.166509][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.166509][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.166509][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.166509][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.166509][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.166509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.166509][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.166509][ T10] netlink_unicast+0x449/0x710 [ 3753.166509][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.166509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.166509][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.166509][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.166509][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.166509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.166509][ T10] [ 3753.168691][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3753.168691][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.168691][ T10] ipv6_find_idev+0x102/0x170 [ 3753.168691][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.168691][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.168691][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.168691][ T10] netlink_unicast+0x449/0x710 [ 3753.168691][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.168691][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.168691][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.168691][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.168691][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.168691][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.168691][ T10] [ 3753.170570][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3753.170570][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.170570][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.170570][ T10] ipv6_find_idev+0x102/0x170 [ 3753.170570][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.170570][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.170570][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.170570][ T10] netlink_unicast+0x449/0x710 [ 3753.170570][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.170570][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.170570][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.170570][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.170570][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.170570][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.170570][ T10] [ 3753.172907][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3753.173203][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3753.173203][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.173203][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.173203][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.173203][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.173203][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.173203][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.173203][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.173203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.173203][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.173203][ T10] netlink_unicast+0x449/0x710 [ 3753.173203][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.173203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.173203][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.173203][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.173203][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.173203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.173203][ T10] [ 3753.175472][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3753.175472][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.175472][ T10] ipv6_find_idev+0x102/0x170 [ 3753.175472][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.175472][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.175472][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.175472][ T10] netlink_unicast+0x449/0x710 [ 3753.175472][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.175472][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.175472][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.175472][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.175472][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.175472][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.175472][ T10] [ 3753.177238][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3753.177238][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.177238][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.177238][ T10] ipv6_find_idev+0x102/0x170 [ 3753.177238][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.177238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.177238][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.177238][ T10] netlink_unicast+0x449/0x710 [ 3753.177238][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.177238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.177238][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.177238][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.177238][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.177238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.177238][ T10] [ 3753.179263][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3753.179566][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3753.179566][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.179566][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.179566][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.179566][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.179566][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.179566][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.179566][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.179566][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.179566][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.179566][ T10] netlink_unicast+0x449/0x710 [ 3753.179566][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.179566][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.179566][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.179566][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.179566][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.179566][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.179566][ T10] [ 3753.182002][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3753.182002][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.182002][ T10] ipv6_find_idev+0x102/0x170 [ 3753.182002][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.182002][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.182002][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.182002][ T10] netlink_unicast+0x449/0x710 [ 3753.182002][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.182002][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.182002][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.182002][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.182002][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.182002][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.182002][ T10] [ 3753.183929][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3753.183929][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.183929][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.183929][ T10] ipv6_find_idev+0x102/0x170 [ 3753.183929][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.183929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.183929][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.183929][ T10] netlink_unicast+0x449/0x710 [ 3753.183929][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.183929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.183929][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.183929][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.183929][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.183929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.183929][ T10] [ 3753.185970][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3753.186278][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3753.186278][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.186278][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.186278][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.186278][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.186278][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.186278][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.186278][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.186278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.186278][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.186278][ T10] netlink_unicast+0x449/0x710 [ 3753.186278][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.186278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.186278][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.186278][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.186278][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.186278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.186278][ T10] [ 3753.188773][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3753.188773][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.188773][ T10] ipv6_find_idev+0x102/0x170 [ 3753.188773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.188773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.188773][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.188773][ T10] netlink_unicast+0x449/0x710 [ 3753.188773][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.188773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.188773][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.188773][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.188773][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.188773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.188773][ T10] [ 3753.190718][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3753.190718][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.190718][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.190718][ T10] ipv6_find_idev+0x102/0x170 [ 3753.190718][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.190718][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.190718][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.190718][ T10] netlink_unicast+0x449/0x710 [ 3753.190718][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.190718][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.190718][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.190718][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.190718][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.190718][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.190718][ T10] [ 3753.192937][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3753.193232][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3753.193232][ T10] netdev_get_by_index+0x5e/0x80 [ 3753.193232][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3753.193232][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3753.193232][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3753.193232][ T10] ipv6_add_addr+0x411/0x2000 [ 3753.193232][ T10] inet6_addr_add+0x30e/0xa40 [ 3753.193232][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3753.193232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.193232][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.193232][ T10] netlink_unicast+0x449/0x710 [ 3753.193232][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.193232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.193232][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.193232][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.193232][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.193232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.193232][ T10] [ 3753.195764][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3753.195764][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3753.195764][ T10] ipv6_find_idev+0x102/0x170 [ 3753.195764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.195764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.195764][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.195764][ T10] netlink_unicast+0x449/0x710 [ 3753.195764][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.195764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.195764][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.195764][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.195764][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.195764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.195764][ T10] [ 3753.197729][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3753.197729][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3753.197729][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3753.197729][ T10] ipv6_find_idev+0x102/0x170 [ 3753.197729][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3753.197729][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3753.197729][ T10] netlink_rcv_skb+0x130/0x360 [ 3753.197729][ T10] netlink_unicast+0x449/0x710 [ 3753.197729][ T10] netlink_sendmsg+0x723/0xbe0 [ 3753.197729][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3753.197729][ T10] ___sys_sendmsg+0xee/0x170 [ 3753.197729][ T10] __sys_sendmsg+0xcd/0x170 [ 3753.197729][ T10] do_syscall_64+0xc6/0x1e0 [ 3753.197729][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3753.197729][ T10] [ 3763.435775][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3763.436282][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3763.436282][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.436282][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.436282][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.436282][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.436282][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.436282][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.436282][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.436282][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.436282][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.436282][ T10] netlink_unicast+0x449/0x710 [ 3763.436282][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.436282][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.436282][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.436282][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.436282][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.436282][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.436282][ T10] [ 3763.438631][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3763.438631][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.438631][ T10] ipv6_find_idev+0x102/0x170 [ 3763.438631][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.438631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.438631][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.438631][ T10] netlink_unicast+0x449/0x710 [ 3763.438631][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.438631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.438631][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.438631][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.438631][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.438631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.438631][ T10] [ 3763.440413][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3763.440413][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.440413][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.440413][ T10] ipv6_find_idev+0x102/0x170 [ 3763.440413][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.440413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.440413][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.440413][ T10] netlink_unicast+0x449/0x710 [ 3763.440413][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.440413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.440413][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.440413][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.440413][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.440413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.440413][ T10] [ 3763.442364][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3763.442688][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3763.442688][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.442688][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.442688][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.442688][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.442688][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.442688][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.442688][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.442688][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.442688][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.442688][ T10] netlink_unicast+0x449/0x710 [ 3763.442688][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.442688][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.442688][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.442688][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.442688][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.442688][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.442688][ T10] [ 3763.444979][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3763.444979][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.444979][ T10] ipv6_find_idev+0x102/0x170 [ 3763.444979][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.444979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.444979][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.444979][ T10] netlink_unicast+0x449/0x710 [ 3763.444979][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.444979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.444979][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.444979][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.444979][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.444979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.444979][ T10] [ 3763.446753][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3763.446753][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.446753][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.446753][ T10] ipv6_find_idev+0x102/0x170 [ 3763.446753][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.446753][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.446753][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.446753][ T10] netlink_unicast+0x449/0x710 [ 3763.446753][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.446753][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.446753][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.446753][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.446753][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.446753][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.446753][ T10] [ 3763.448693][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3763.448993][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3763.448993][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.448993][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.448993][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.448993][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.448993][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.448993][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.448993][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.448993][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.448993][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.448993][ T10] netlink_unicast+0x449/0x710 [ 3763.448993][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.448993][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.448993][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.448993][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.448993][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.448993][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.448993][ T10] [ 3763.451284][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3763.451284][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.451284][ T10] ipv6_find_idev+0x102/0x170 [ 3763.451284][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.451284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.451284][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.451284][ T10] netlink_unicast+0x449/0x710 [ 3763.451284][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.451284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.451284][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.451284][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.451284][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.451284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.451284][ T10] [ 3763.453062][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3763.453062][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.453062][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.453062][ T10] ipv6_find_idev+0x102/0x170 [ 3763.453062][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.453062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.453062][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.453062][ T10] netlink_unicast+0x449/0x710 [ 3763.453062][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.453062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.453062][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.453062][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.453062][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.453062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.453062][ T10] [ 3763.454998][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3763.455290][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3763.455290][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.455290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.455290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.455290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.455290][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.455290][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.455290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.455290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.455290][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.455290][ T10] netlink_unicast+0x449/0x710 [ 3763.455290][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.455290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.455290][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.455290][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.455290][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.455290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.455290][ T10] [ 3763.457592][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3763.457592][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.457592][ T10] ipv6_find_idev+0x102/0x170 [ 3763.457592][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.457592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.457592][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.457592][ T10] netlink_unicast+0x449/0x710 [ 3763.457592][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.457592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.457592][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.457592][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.457592][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.457592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.457592][ T10] [ 3763.459352][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3763.459352][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.459352][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.459352][ T10] ipv6_find_idev+0x102/0x170 [ 3763.459352][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.459352][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.459352][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.459352][ T10] netlink_unicast+0x449/0x710 [ 3763.459352][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.459352][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.459352][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.459352][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.459352][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.459352][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.459352][ T10] [ 3763.461722][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3763.462132][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3763.462132][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.462132][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.462132][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.462132][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.462132][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.462132][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.462132][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.462132][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.462132][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.462132][ T10] netlink_unicast+0x449/0x710 [ 3763.462132][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.462132][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.462132][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.462132][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.462132][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.462132][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.462132][ T10] [ 3763.464363][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3763.464363][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.464363][ T10] ipv6_find_idev+0x102/0x170 [ 3763.464363][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.464363][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.464363][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.464363][ T10] netlink_unicast+0x449/0x710 [ 3763.464363][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.464363][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.464363][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.464363][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.464363][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.464363][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.464363][ T10] [ 3763.466099][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3763.466099][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.466099][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.466099][ T10] ipv6_find_idev+0x102/0x170 [ 3763.466099][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.466099][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.466099][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.466099][ T10] netlink_unicast+0x449/0x710 [ 3763.466099][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.466099][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.466099][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.466099][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.466099][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.466099][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.466099][ T10] [ 3763.468033][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3763.468317][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3763.468317][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.468317][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.468317][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.468317][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.468317][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.468317][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.468317][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.468317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.468317][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.468317][ T10] netlink_unicast+0x449/0x710 [ 3763.468317][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.468317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.468317][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.468317][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.468317][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.468317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.468317][ T10] [ 3763.470698][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3763.470698][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.470698][ T10] ipv6_find_idev+0x102/0x170 [ 3763.470698][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.470698][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.470698][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.470698][ T10] netlink_unicast+0x449/0x710 [ 3763.470698][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.470698][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.470698][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.470698][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.470698][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.470698][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.470698][ T10] [ 3763.472641][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3763.472641][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.472641][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.472641][ T10] ipv6_find_idev+0x102/0x170 [ 3763.472641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.472641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.472641][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.472641][ T10] netlink_unicast+0x449/0x710 [ 3763.472641][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.472641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.472641][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.472641][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.472641][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.472641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.472641][ T10] [ 3763.474721][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3763.475004][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3763.475004][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.475004][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.475004][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.475004][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.475004][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.475004][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.475004][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.475004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.475004][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.475004][ T10] netlink_unicast+0x449/0x710 [ 3763.475004][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.475004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.475004][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.475004][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.475004][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.475004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.475004][ T10] [ 3763.477367][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3763.477367][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.477367][ T10] ipv6_find_idev+0x102/0x170 [ 3763.477367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.477367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.477367][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.477367][ T10] netlink_unicast+0x449/0x710 [ 3763.477367][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.477367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.477367][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.477367][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.477367][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.477367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.477367][ T10] [ 3763.479239][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3763.479239][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.479239][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.479239][ T10] ipv6_find_idev+0x102/0x170 [ 3763.479239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.479239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.479239][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.479239][ T10] netlink_unicast+0x449/0x710 [ 3763.479239][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.479239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.479239][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.479239][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.479239][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.479239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.479239][ T10] [ 3763.481469][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3763.481822][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3763.481822][ T10] netdev_get_by_index+0x5e/0x80 [ 3763.481822][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3763.481822][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3763.481822][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3763.481822][ T10] ipv6_add_addr+0x411/0x2000 [ 3763.481822][ T10] inet6_addr_add+0x30e/0xa40 [ 3763.481822][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3763.481822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.481822][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.481822][ T10] netlink_unicast+0x449/0x710 [ 3763.481822][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.481822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.481822][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.481822][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.481822][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.481822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.481822][ T10] [ 3763.484388][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3763.484388][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3763.484388][ T10] ipv6_find_idev+0x102/0x170 [ 3763.484388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.484388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.484388][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.484388][ T10] netlink_unicast+0x449/0x710 [ 3763.484388][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.484388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.484388][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.484388][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.484388][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.484388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.484388][ T10] [ 3763.486313][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3763.486313][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3763.486313][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3763.486313][ T10] ipv6_find_idev+0x102/0x170 [ 3763.486313][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3763.486313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3763.486313][ T10] netlink_rcv_skb+0x130/0x360 [ 3763.486313][ T10] netlink_unicast+0x449/0x710 [ 3763.486313][ T10] netlink_sendmsg+0x723/0xbe0 [ 3763.486313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3763.486313][ T10] ___sys_sendmsg+0xee/0x170 [ 3763.486313][ T10] __sys_sendmsg+0xcd/0x170 [ 3763.486313][ T10] do_syscall_64+0xc6/0x1e0 [ 3763.486313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3763.486313][ T10] [ 3773.723719][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3773.724238][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3773.724238][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.724238][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.724238][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.724238][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.724238][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.724238][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.724238][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.724238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.724238][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.724238][ T10] netlink_unicast+0x449/0x710 [ 3773.724238][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.724238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.724238][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.724238][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.724238][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.724238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.724238][ T10] [ 3773.726448][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3773.726448][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.726448][ T10] ipv6_find_idev+0x102/0x170 [ 3773.726448][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.726448][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.726448][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.726448][ T10] netlink_unicast+0x449/0x710 [ 3773.726448][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.726448][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.726448][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.726448][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.726448][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.726448][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.726448][ T10] [ 3773.728137][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3773.728137][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.728137][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.728137][ T10] ipv6_find_idev+0x102/0x170 [ 3773.728137][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.728137][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.728137][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.728137][ T10] netlink_unicast+0x449/0x710 [ 3773.728137][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.728137][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.728137][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.728137][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.728137][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.728137][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.728137][ T10] [ 3773.730021][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3773.730312][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3773.730312][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.730312][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.730312][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.730312][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.730312][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.730312][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.730312][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.730312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.730312][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.730312][ T10] netlink_unicast+0x449/0x710 [ 3773.730312][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.730312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.730312][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.730312][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.730312][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.730312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.730312][ T10] [ 3773.733054][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3773.733054][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.733054][ T10] ipv6_find_idev+0x102/0x170 [ 3773.733054][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.733054][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.733054][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.733054][ T10] netlink_unicast+0x449/0x710 [ 3773.733054][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.733054][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.733054][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.733054][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.733054][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.733054][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.733054][ T10] [ 3773.734762][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3773.734762][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.734762][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.734762][ T10] ipv6_find_idev+0x102/0x170 [ 3773.734762][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.734762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.734762][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.734762][ T10] netlink_unicast+0x449/0x710 [ 3773.734762][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.734762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.734762][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.734762][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.734762][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.734762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.734762][ T10] [ 3773.737099][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3773.737398][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3773.737398][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.737398][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.737398][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.737398][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.737398][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.737398][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.737398][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.737398][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.737398][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.737398][ T10] netlink_unicast+0x449/0x710 [ 3773.737398][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.737398][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.737398][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.737398][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.737398][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.737398][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.737398][ T10] [ 3773.739608][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3773.739608][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.739608][ T10] ipv6_find_idev+0x102/0x170 [ 3773.739608][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.739608][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.739608][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.739608][ T10] netlink_unicast+0x449/0x710 [ 3773.739608][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.739608][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.739608][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.739608][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.739608][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.739608][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.739608][ T10] [ 3773.741311][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3773.741311][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.741311][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.741311][ T10] ipv6_find_idev+0x102/0x170 [ 3773.741311][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.741311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.741311][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.741311][ T10] netlink_unicast+0x449/0x710 [ 3773.741311][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.741311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.741311][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.741311][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.741311][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.741311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.741311][ T10] [ 3773.743196][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3773.743488][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3773.743488][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.743488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.743488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.743488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.743488][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.743488][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.743488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.743488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.743488][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.743488][ T10] netlink_unicast+0x449/0x710 [ 3773.743488][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.743488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.743488][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.743488][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.743488][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.743488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.743488][ T10] [ 3773.745697][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3773.745697][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.745697][ T10] ipv6_find_idev+0x102/0x170 [ 3773.745697][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.745697][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.745697][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.745697][ T10] netlink_unicast+0x449/0x710 [ 3773.745697][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.745697][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.745697][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.745697][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.745697][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.745697][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.745697][ T10] [ 3773.747415][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3773.747415][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.747415][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.747415][ T10] ipv6_find_idev+0x102/0x170 [ 3773.747415][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.747415][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.747415][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.747415][ T10] netlink_unicast+0x449/0x710 [ 3773.747415][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.747415][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.747415][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.747415][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.747415][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.747415][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.747415][ T10] [ 3773.749740][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3773.750026][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3773.750026][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.750026][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.750026][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.750026][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.750026][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.750026][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.750026][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.750026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.750026][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.750026][ T10] netlink_unicast+0x449/0x710 [ 3773.750026][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.750026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.750026][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.750026][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.750026][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.750026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.750026][ T10] [ 3773.752226][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3773.752226][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.752226][ T10] ipv6_find_idev+0x102/0x170 [ 3773.752226][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.752226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.752226][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.752226][ T10] netlink_unicast+0x449/0x710 [ 3773.752226][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.752226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.752226][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.752226][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.752226][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.752226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.752226][ T10] [ 3773.753954][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3773.753954][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.753954][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.753954][ T10] ipv6_find_idev+0x102/0x170 [ 3773.753954][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.753954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.753954][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.753954][ T10] netlink_unicast+0x449/0x710 [ 3773.753954][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.753954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.753954][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.753954][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.753954][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.753954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.753954][ T10] [ 3773.755868][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3773.756168][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3773.756168][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.756168][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.756168][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.756168][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.756168][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.756168][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.756168][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.756168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.756168][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.756168][ T10] netlink_unicast+0x449/0x710 [ 3773.756168][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.756168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.756168][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.756168][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.756168][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.756168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.756168][ T10] [ 3773.758585][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3773.758585][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.758585][ T10] ipv6_find_idev+0x102/0x170 [ 3773.758585][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.758585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.758585][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.758585][ T10] netlink_unicast+0x449/0x710 [ 3773.758585][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.758585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.758585][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.758585][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.758585][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.758585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.758585][ T10] [ 3773.760517][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3773.760517][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.760517][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.760517][ T10] ipv6_find_idev+0x102/0x170 [ 3773.760517][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.760517][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.760517][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.760517][ T10] netlink_unicast+0x449/0x710 [ 3773.760517][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.760517][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.760517][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.760517][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.760517][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.760517][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.760517][ T10] [ 3773.762627][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3773.762979][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3773.762979][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.762979][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.762979][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.762979][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.762979][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.762979][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.762979][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.762979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.762979][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.762979][ T10] netlink_unicast+0x449/0x710 [ 3773.762979][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.762979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.762979][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.762979][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.762979][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.762979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.762979][ T10] [ 3773.765346][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3773.765346][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.765346][ T10] ipv6_find_idev+0x102/0x170 [ 3773.765346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.765346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.765346][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.765346][ T10] netlink_unicast+0x449/0x710 [ 3773.765346][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.765346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.765346][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.765346][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.765346][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.765346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.765346][ T10] [ 3773.767241][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3773.767241][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.767241][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.767241][ T10] ipv6_find_idev+0x102/0x170 [ 3773.767241][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.767241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.767241][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.767241][ T10] netlink_unicast+0x449/0x710 [ 3773.767241][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.767241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.767241][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.767241][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.767241][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.767241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.767241][ T10] [ 3773.769317][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3773.769610][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3773.769610][ T10] netdev_get_by_index+0x5e/0x80 [ 3773.769610][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3773.769610][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3773.769610][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3773.769610][ T10] ipv6_add_addr+0x411/0x2000 [ 3773.769610][ T10] inet6_addr_add+0x30e/0xa40 [ 3773.769610][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3773.769610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.769610][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.769610][ T10] netlink_unicast+0x449/0x710 [ 3773.769610][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.769610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.769610][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.769610][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.769610][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.769610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.769610][ T10] [ 3773.772123][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3773.772123][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3773.772123][ T10] ipv6_find_idev+0x102/0x170 [ 3773.772123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.772123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.772123][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.772123][ T10] netlink_unicast+0x449/0x710 [ 3773.772123][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.772123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.772123][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.772123][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.772123][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.772123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.772123][ T10] [ 3773.774035][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3773.774035][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3773.774035][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3773.774035][ T10] ipv6_find_idev+0x102/0x170 [ 3773.774035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3773.774035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3773.774035][ T10] netlink_rcv_skb+0x130/0x360 [ 3773.774035][ T10] netlink_unicast+0x449/0x710 [ 3773.774035][ T10] netlink_sendmsg+0x723/0xbe0 [ 3773.774035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3773.774035][ T10] ___sys_sendmsg+0xee/0x170 [ 3773.774035][ T10] __sys_sendmsg+0xcd/0x170 [ 3773.774035][ T10] do_syscall_64+0xc6/0x1e0 [ 3773.774035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3773.774035][ T10] [ 3784.011722][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3784.012239][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3784.012239][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.012239][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.012239][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.012239][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.012239][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.012239][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.012239][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.012239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.012239][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.012239][ T10] netlink_unicast+0x449/0x710 [ 3784.012239][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.012239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.012239][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.012239][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.012239][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.012239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.012239][ T10] [ 3784.014272][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3784.014272][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.014272][ T10] ipv6_find_idev+0x102/0x170 [ 3784.014272][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.014272][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.014272][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.014272][ T10] netlink_unicast+0x449/0x710 [ 3784.014272][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.014272][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.014272][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.014272][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.014272][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.014272][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.014272][ T10] [ 3784.015815][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3784.015815][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.015815][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.015815][ T10] ipv6_find_idev+0x102/0x170 [ 3784.015815][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.015815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.015815][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.015815][ T10] netlink_unicast+0x449/0x710 [ 3784.015815][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.015815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.015815][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.015815][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.015815][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.015815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.015815][ T10] [ 3784.017525][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3784.017808][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3784.017808][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.017808][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.017808][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.017808][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.017808][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.017808][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.017808][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.017808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.017808][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.017808][ T10] netlink_unicast+0x449/0x710 [ 3784.017808][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.017808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.017808][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.017808][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.017808][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.017808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.017808][ T10] [ 3784.019810][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3784.019810][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.019810][ T10] ipv6_find_idev+0x102/0x170 [ 3784.019810][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.019810][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.019810][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.019810][ T10] netlink_unicast+0x449/0x710 [ 3784.019810][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.019810][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.019810][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.019810][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.019810][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.019810][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.019810][ T10] [ 3784.021355][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3784.021355][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.021355][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.021355][ T10] ipv6_find_idev+0x102/0x170 [ 3784.021355][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.021355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.021355][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.021355][ T10] netlink_unicast+0x449/0x710 [ 3784.021355][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.021355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.021355][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.021355][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.021355][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.021355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.021355][ T10] [ 3784.023054][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3784.023324][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3784.023324][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.023324][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.023324][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.023324][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.023324][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.023324][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.023324][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.023324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.023324][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.023324][ T10] netlink_unicast+0x449/0x710 [ 3784.023324][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.023324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.023324][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.023324][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.023324][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.023324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.023324][ T10] [ 3784.025334][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3784.025334][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.025334][ T10] ipv6_find_idev+0x102/0x170 [ 3784.025334][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.025334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.025334][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.025334][ T10] netlink_unicast+0x449/0x710 [ 3784.025334][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.025334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.025334][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.025334][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.025334][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.025334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.025334][ T10] [ 3784.026985][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3784.026985][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.026985][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.026985][ T10] ipv6_find_idev+0x102/0x170 [ 3784.026985][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.026985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.026985][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.026985][ T10] netlink_unicast+0x449/0x710 [ 3784.026985][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.026985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.026985][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.026985][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.026985][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.026985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.026985][ T10] [ 3784.028753][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3784.029031][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3784.029031][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.029031][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.029031][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.029031][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.029031][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.029031][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.029031][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.029031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.029031][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.029031][ T10] netlink_unicast+0x449/0x710 [ 3784.029031][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.029031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.029031][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.029031][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.029031][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.029031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.029031][ T10] [ 3784.031046][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3784.031046][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.031046][ T10] ipv6_find_idev+0x102/0x170 [ 3784.031046][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.031046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.031046][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.031046][ T10] netlink_unicast+0x449/0x710 [ 3784.031046][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.031046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.031046][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.031046][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.031046][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.031046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.031046][ T10] [ 3784.032613][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3784.032613][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.032613][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.032613][ T10] ipv6_find_idev+0x102/0x170 [ 3784.032613][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.032613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.032613][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.032613][ T10] netlink_unicast+0x449/0x710 [ 3784.032613][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.032613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.032613][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.032613][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.032613][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.032613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.032613][ T10] [ 3784.034739][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3784.035337][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3784.035337][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.035337][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.035337][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.035337][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.035337][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.035337][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.035337][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.035337][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.035337][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.035337][ T10] netlink_unicast+0x449/0x710 [ 3784.035337][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.035337][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.035337][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.035337][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.035337][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.035337][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.035337][ T10] [ 3784.037324][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3784.037324][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.037324][ T10] ipv6_find_idev+0x102/0x170 [ 3784.037324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.037324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.037324][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.037324][ T10] netlink_unicast+0x449/0x710 [ 3784.037324][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.037324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.037324][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.037324][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.037324][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.037324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.037324][ T10] [ 3784.038856][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3784.038856][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.038856][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.038856][ T10] ipv6_find_idev+0x102/0x170 [ 3784.038856][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.038856][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.038856][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.038856][ T10] netlink_unicast+0x449/0x710 [ 3784.038856][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.038856][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.038856][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.038856][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.038856][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.038856][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.038856][ T10] [ 3784.040541][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3784.040864][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3784.040864][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.040864][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.040864][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.040864][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.040864][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.040864][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.040864][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.040864][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.040864][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.040864][ T10] netlink_unicast+0x449/0x710 [ 3784.040864][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.040864][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.040864][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.040864][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.040864][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.040864][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.040864][ T10] [ 3784.042869][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3784.042869][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.042869][ T10] ipv6_find_idev+0x102/0x170 [ 3784.042869][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.042869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.042869][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.042869][ T10] netlink_unicast+0x449/0x710 [ 3784.042869][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.042869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.042869][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.042869][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.042869][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.042869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.042869][ T10] [ 3784.044401][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3784.044401][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.044401][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.044401][ T10] ipv6_find_idev+0x102/0x170 [ 3784.044401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.044401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.044401][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.044401][ T10] netlink_unicast+0x449/0x710 [ 3784.044401][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.044401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.044401][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.044401][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.044401][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.044401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.044401][ T10] [ 3784.046429][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3784.046752][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3784.046752][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.046752][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.046752][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.046752][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.046752][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.046752][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.046752][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.046752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.046752][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.046752][ T10] netlink_unicast+0x449/0x710 [ 3784.046752][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.046752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.046752][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.046752][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.046752][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.046752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.046752][ T10] [ 3784.048919][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3784.048919][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.048919][ T10] ipv6_find_idev+0x102/0x170 [ 3784.048919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.048919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.048919][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.048919][ T10] netlink_unicast+0x449/0x710 [ 3784.048919][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.048919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.048919][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.048919][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.048919][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.048919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.048919][ T10] [ 3784.050628][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3784.050628][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.050628][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.050628][ T10] ipv6_find_idev+0x102/0x170 [ 3784.050628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.050628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.050628][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.050628][ T10] netlink_unicast+0x449/0x710 [ 3784.050628][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.050628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.050628][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.050628][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.050628][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.050628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.050628][ T10] [ 3784.052523][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3784.052846][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3784.052846][ T10] netdev_get_by_index+0x5e/0x80 [ 3784.052846][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3784.052846][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3784.052846][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3784.052846][ T10] ipv6_add_addr+0x411/0x2000 [ 3784.052846][ T10] inet6_addr_add+0x30e/0xa40 [ 3784.052846][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3784.052846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.052846][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.052846][ T10] netlink_unicast+0x449/0x710 [ 3784.052846][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.052846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.052846][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.052846][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.052846][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.052846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.052846][ T10] [ 3784.055009][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3784.055009][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3784.055009][ T10] ipv6_find_idev+0x102/0x170 [ 3784.055009][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.055009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.055009][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.055009][ T10] netlink_unicast+0x449/0x710 [ 3784.055009][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.055009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.055009][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.055009][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.055009][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.055009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.055009][ T10] [ 3784.056721][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3784.056721][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3784.056721][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3784.056721][ T10] ipv6_find_idev+0x102/0x170 [ 3784.056721][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3784.056721][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3784.056721][ T10] netlink_rcv_skb+0x130/0x360 [ 3784.056721][ T10] netlink_unicast+0x449/0x710 [ 3784.056721][ T10] netlink_sendmsg+0x723/0xbe0 [ 3784.056721][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3784.056721][ T10] ___sys_sendmsg+0xee/0x170 [ 3784.056721][ T10] __sys_sendmsg+0xcd/0x170 [ 3784.056721][ T10] do_syscall_64+0xc6/0x1e0 [ 3784.056721][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3784.056721][ T10] [ 3794.299780][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3794.300308][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3794.300308][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.300308][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.300308][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.300308][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.300308][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.300308][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.300308][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.300308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.300308][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.300308][ T10] netlink_unicast+0x449/0x710 [ 3794.300308][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.300308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.300308][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.300308][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.300308][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.300308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.300308][ T10] [ 3794.302327][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3794.302327][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.302327][ T10] ipv6_find_idev+0x102/0x170 [ 3794.302327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.302327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.302327][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.302327][ T10] netlink_unicast+0x449/0x710 [ 3794.302327][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.302327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.302327][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.302327][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.302327][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.302327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.302327][ T10] [ 3794.303882][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3794.303882][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.303882][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.303882][ T10] ipv6_find_idev+0x102/0x170 [ 3794.303882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.303882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.303882][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.303882][ T10] netlink_unicast+0x449/0x710 [ 3794.303882][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.303882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.303882][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.303882][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.303882][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.303882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.303882][ T10] [ 3794.305593][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3794.305880][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3794.305880][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.305880][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.305880][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.305880][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.305880][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.305880][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.305880][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.305880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.305880][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.305880][ T10] netlink_unicast+0x449/0x710 [ 3794.305880][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.305880][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.305880][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.305880][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.305880][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.305880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.305880][ T10] [ 3794.307874][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3794.307874][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.307874][ T10] ipv6_find_idev+0x102/0x170 [ 3794.307874][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.307874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.307874][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.307874][ T10] netlink_unicast+0x449/0x710 [ 3794.307874][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.307874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.307874][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.307874][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.307874][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.307874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.307874][ T10] [ 3794.309419][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3794.309419][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.309419][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.309419][ T10] ipv6_find_idev+0x102/0x170 [ 3794.309419][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.309419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.309419][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.309419][ T10] netlink_unicast+0x449/0x710 [ 3794.309419][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.309419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.309419][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.309419][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.309419][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.309419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.309419][ T10] [ 3794.311106][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3794.311376][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3794.311376][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.311376][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.311376][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.311376][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.311376][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.311376][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.311376][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.311376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.311376][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.311376][ T10] netlink_unicast+0x449/0x710 [ 3794.311376][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.311376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.311376][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.311376][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.311376][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.311376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.311376][ T10] [ 3794.313388][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3794.313388][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.313388][ T10] ipv6_find_idev+0x102/0x170 [ 3794.313388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.313388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.313388][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.313388][ T10] netlink_unicast+0x449/0x710 [ 3794.313388][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.313388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.313388][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.313388][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.313388][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.313388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.313388][ T10] [ 3794.314923][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3794.314923][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.314923][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.314923][ T10] ipv6_find_idev+0x102/0x170 [ 3794.314923][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.314923][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.314923][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.314923][ T10] netlink_unicast+0x449/0x710 [ 3794.314923][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.314923][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.314923][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.314923][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.314923][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.314923][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.314923][ T10] [ 3794.316613][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3794.317310][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3794.317310][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.317310][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.317310][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.317310][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.317310][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.317310][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.317310][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.317310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.317310][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.317310][ T10] netlink_unicast+0x449/0x710 [ 3794.317310][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.317310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.317310][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.317310][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.317310][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.317310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.317310][ T10] [ 3794.319298][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3794.319298][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.319298][ T10] ipv6_find_idev+0x102/0x170 [ 3794.319298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.319298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.319298][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.319298][ T10] netlink_unicast+0x449/0x710 [ 3794.319298][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.319298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.319298][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.319298][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.319298][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.319298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.319298][ T10] [ 3794.320837][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3794.320837][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.320837][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.320837][ T10] ipv6_find_idev+0x102/0x170 [ 3794.320837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.320837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.320837][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.320837][ T10] netlink_unicast+0x449/0x710 [ 3794.320837][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.320837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.320837][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.320837][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.320837][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.320837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.320837][ T10] [ 3794.322620][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3794.322956][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3794.322956][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.322956][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.322956][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.322956][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.322956][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.322956][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.322956][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.322956][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.322956][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.322956][ T10] netlink_unicast+0x449/0x710 [ 3794.322956][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.322956][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.322956][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.322956][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.322956][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.322956][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.322956][ T10] [ 3794.324975][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3794.324975][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.324975][ T10] ipv6_find_idev+0x102/0x170 [ 3794.324975][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.324975][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.324975][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.324975][ T10] netlink_unicast+0x449/0x710 [ 3794.324975][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.324975][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.324975][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.324975][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.324975][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.324975][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.324975][ T10] [ 3794.326515][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3794.326515][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.326515][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.326515][ T10] ipv6_find_idev+0x102/0x170 [ 3794.326515][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.326515][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.326515][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.326515][ T10] netlink_unicast+0x449/0x710 [ 3794.326515][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.326515][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.326515][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.326515][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.326515][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.326515][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.326515][ T10] [ 3794.328240][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3794.328551][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3794.328551][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.328551][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.328551][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.328551][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.328551][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.328551][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.328551][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.328551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.328551][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.328551][ T10] netlink_unicast+0x449/0x710 [ 3794.328551][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.328551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.328551][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.328551][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.328551][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.328551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.328551][ T10] [ 3794.330578][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3794.330578][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.330578][ T10] ipv6_find_idev+0x102/0x170 [ 3794.330578][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.330578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.330578][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.330578][ T10] netlink_unicast+0x449/0x710 [ 3794.330578][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.330578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.330578][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.330578][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.330578][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.330578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.330578][ T10] [ 3794.332297][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3794.332297][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.332297][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.332297][ T10] ipv6_find_idev+0x102/0x170 [ 3794.332297][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.332297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.332297][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.332297][ T10] netlink_unicast+0x449/0x710 [ 3794.332297][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.332297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.332297][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.332297][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.332297][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.332297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.332297][ T10] [ 3794.334334][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3794.334652][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3794.334652][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.334652][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.334652][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.334652][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.334652][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.334652][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.334652][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.334652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.334652][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.334652][ T10] netlink_unicast+0x449/0x710 [ 3794.334652][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.334652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.334652][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.334652][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.334652][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.334652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.334652][ T10] [ 3794.336822][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3794.336822][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.336822][ T10] ipv6_find_idev+0x102/0x170 [ 3794.336822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.336822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.336822][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.336822][ T10] netlink_unicast+0x449/0x710 [ 3794.336822][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.336822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.336822][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.336822][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.336822][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.336822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.336822][ T10] [ 3794.338725][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3794.338725][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.338725][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.338725][ T10] ipv6_find_idev+0x102/0x170 [ 3794.338725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.338725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.338725][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.338725][ T10] netlink_unicast+0x449/0x710 [ 3794.338725][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.338725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.338725][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.338725][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.338725][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.338725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.338725][ T10] [ 3794.340617][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3794.340938][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3794.340938][ T10] netdev_get_by_index+0x5e/0x80 [ 3794.340938][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3794.340938][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3794.340938][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3794.340938][ T10] ipv6_add_addr+0x411/0x2000 [ 3794.340938][ T10] inet6_addr_add+0x30e/0xa40 [ 3794.340938][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3794.340938][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.340938][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.340938][ T10] netlink_unicast+0x449/0x710 [ 3794.340938][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.340938][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.340938][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.340938][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.340938][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.340938][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.340938][ T10] [ 3794.343115][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3794.343115][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3794.343115][ T10] ipv6_find_idev+0x102/0x170 [ 3794.343115][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.343115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.343115][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.343115][ T10] netlink_unicast+0x449/0x710 [ 3794.343115][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.343115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.343115][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.343115][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.343115][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.343115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.343115][ T10] [ 3794.344882][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3794.344882][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3794.344882][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3794.344882][ T10] ipv6_find_idev+0x102/0x170 [ 3794.344882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3794.344882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3794.344882][ T10] netlink_rcv_skb+0x130/0x360 [ 3794.344882][ T10] netlink_unicast+0x449/0x710 [ 3794.344882][ T10] netlink_sendmsg+0x723/0xbe0 [ 3794.344882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3794.344882][ T10] ___sys_sendmsg+0xee/0x170 [ 3794.344882][ T10] __sys_sendmsg+0xcd/0x170 [ 3794.344882][ T10] do_syscall_64+0xc6/0x1e0 [ 3794.344882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3794.344882][ T10] [ 3804.587802][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3804.588291][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3804.588291][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.588291][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.588291][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.588291][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.588291][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.588291][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.588291][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.588291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.588291][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.588291][ T10] netlink_unicast+0x449/0x710 [ 3804.588291][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.588291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.588291][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.588291][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.588291][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.588291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.588291][ T10] [ 3804.590316][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3804.590316][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.590316][ T10] ipv6_find_idev+0x102/0x170 [ 3804.590316][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.590316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.590316][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.590316][ T10] netlink_unicast+0x449/0x710 [ 3804.590316][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.590316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.590316][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.590316][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.590316][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.590316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.590316][ T10] [ 3804.591837][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3804.591837][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.591837][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.591837][ T10] ipv6_find_idev+0x102/0x170 [ 3804.591837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.591837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.591837][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.591837][ T10] netlink_unicast+0x449/0x710 [ 3804.591837][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.591837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.591837][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.591837][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.591837][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.591837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.591837][ T10] [ 3804.593525][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3804.593820][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3804.593820][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.593820][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.593820][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.593820][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.593820][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.593820][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.593820][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.593820][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.593820][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.593820][ T10] netlink_unicast+0x449/0x710 [ 3804.593820][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.593820][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.593820][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.593820][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.593820][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.593820][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.593820][ T10] [ 3804.595771][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3804.595771][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.595771][ T10] ipv6_find_idev+0x102/0x170 [ 3804.595771][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.595771][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.595771][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.595771][ T10] netlink_unicast+0x449/0x710 [ 3804.595771][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.595771][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.595771][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.595771][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.595771][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.595771][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.595771][ T10] [ 3804.597286][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3804.597286][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.597286][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.597286][ T10] ipv6_find_idev+0x102/0x170 [ 3804.597286][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.597286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.597286][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.597286][ T10] netlink_unicast+0x449/0x710 [ 3804.597286][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.597286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.597286][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.597286][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.597286][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.597286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.597286][ T10] [ 3804.598946][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3804.599214][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3804.599214][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.599214][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.599214][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.599214][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.599214][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.599214][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.599214][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.599214][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.599214][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.599214][ T10] netlink_unicast+0x449/0x710 [ 3804.599214][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.599214][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.599214][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.599214][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.599214][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.599214][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.599214][ T10] [ 3804.601169][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3804.601169][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.601169][ T10] ipv6_find_idev+0x102/0x170 [ 3804.601169][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.601169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.601169][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.601169][ T10] netlink_unicast+0x449/0x710 [ 3804.601169][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.601169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.601169][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.601169][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.601169][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.601169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.601169][ T10] [ 3804.602728][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3804.602728][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.602728][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.602728][ T10] ipv6_find_idev+0x102/0x170 [ 3804.602728][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.602728][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.602728][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.602728][ T10] netlink_unicast+0x449/0x710 [ 3804.602728][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.602728][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.602728][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.602728][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.602728][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.602728][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.602728][ T10] [ 3804.604384][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3804.604649][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3804.604649][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.604649][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.604649][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.604649][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.604649][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.604649][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.604649][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.604649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.604649][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.604649][ T10] netlink_unicast+0x449/0x710 [ 3804.604649][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.604649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.604649][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.604649][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.604649][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.604649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.604649][ T10] [ 3804.606600][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3804.606600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.606600][ T10] ipv6_find_idev+0x102/0x170 [ 3804.606600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.606600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.606600][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.606600][ T10] netlink_unicast+0x449/0x710 [ 3804.606600][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.606600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.606600][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.606600][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.606600][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.606600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.606600][ T10] [ 3804.608127][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3804.608127][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.608127][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.608127][ T10] ipv6_find_idev+0x102/0x170 [ 3804.608127][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.608127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.608127][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.608127][ T10] netlink_unicast+0x449/0x710 [ 3804.608127][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.608127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.608127][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.608127][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.608127][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.608127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.608127][ T10] [ 3804.609863][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3804.610123][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3804.610123][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.610123][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.610123][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.610123][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.610123][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.610123][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.610123][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.610123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.610123][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.610123][ T10] netlink_unicast+0x449/0x710 [ 3804.610123][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.610123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.610123][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.610123][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.610123][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.610123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.610123][ T10] [ 3804.612093][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3804.612093][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.612093][ T10] ipv6_find_idev+0x102/0x170 [ 3804.612093][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.612093][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.612093][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.612093][ T10] netlink_unicast+0x449/0x710 [ 3804.612093][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.612093][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.612093][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.612093][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.612093][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.612093][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.612093][ T10] [ 3804.613615][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3804.613615][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.613615][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.613615][ T10] ipv6_find_idev+0x102/0x170 [ 3804.613615][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.613615][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.613615][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.613615][ T10] netlink_unicast+0x449/0x710 [ 3804.613615][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.613615][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.613615][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.613615][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.613615][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.613615][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.613615][ T10] [ 3804.615549][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3804.615865][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3804.615865][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.615865][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.615865][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.615865][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.615865][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.615865][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.615865][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.615865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.615865][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.615865][ T10] netlink_unicast+0x449/0x710 [ 3804.615865][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.615865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.615865][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.615865][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.615865][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.615865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.615865][ T10] [ 3804.618120][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3804.618120][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.618120][ T10] ipv6_find_idev+0x102/0x170 [ 3804.618120][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.618120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.618120][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.618120][ T10] netlink_unicast+0x449/0x710 [ 3804.618120][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.618120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.618120][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.618120][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.618120][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.618120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.618120][ T10] [ 3804.619743][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3804.619743][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.619743][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.619743][ T10] ipv6_find_idev+0x102/0x170 [ 3804.619743][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.619743][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.619743][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.619743][ T10] netlink_unicast+0x449/0x710 [ 3804.619743][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.619743][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.619743][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.619743][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.619743][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.619743][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.619743][ T10] [ 3804.621686][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3804.621947][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3804.621947][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.621947][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.621947][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.621947][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.621947][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.621947][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.621947][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.621947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.621947][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.621947][ T10] netlink_unicast+0x449/0x710 [ 3804.621947][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.621947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.621947][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.621947][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.621947][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.621947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.621947][ T10] [ 3804.624098][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3804.624098][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.624098][ T10] ipv6_find_idev+0x102/0x170 [ 3804.624098][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.624098][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.624098][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.624098][ T10] netlink_unicast+0x449/0x710 [ 3804.624098][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.624098][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.624098][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.624098][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.624098][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.624098][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.624098][ T10] [ 3804.625791][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3804.625791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.625791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.625791][ T10] ipv6_find_idev+0x102/0x170 [ 3804.625791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.625791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.625791][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.625791][ T10] netlink_unicast+0x449/0x710 [ 3804.625791][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.625791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.625791][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.625791][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.625791][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.625791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.625791][ T10] [ 3804.628315][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3804.628581][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3804.628581][ T10] netdev_get_by_index+0x5e/0x80 [ 3804.628581][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3804.628581][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3804.628581][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3804.628581][ T10] ipv6_add_addr+0x411/0x2000 [ 3804.628581][ T10] inet6_addr_add+0x30e/0xa40 [ 3804.628581][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3804.628581][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.628581][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.628581][ T10] netlink_unicast+0x449/0x710 [ 3804.628581][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.628581][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.628581][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.628581][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.628581][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.628581][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.628581][ T10] [ 3804.630719][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3804.630719][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3804.630719][ T10] ipv6_find_idev+0x102/0x170 [ 3804.630719][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.630719][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.630719][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.630719][ T10] netlink_unicast+0x449/0x710 [ 3804.630719][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.630719][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.630719][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.630719][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.630719][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.630719][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.630719][ T10] [ 3804.632411][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3804.632411][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3804.632411][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3804.632411][ T10] ipv6_find_idev+0x102/0x170 [ 3804.632411][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3804.632411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3804.632411][ T10] netlink_rcv_skb+0x130/0x360 [ 3804.632411][ T10] netlink_unicast+0x449/0x710 [ 3804.632411][ T10] netlink_sendmsg+0x723/0xbe0 [ 3804.632411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3804.632411][ T10] ___sys_sendmsg+0xee/0x170 [ 3804.632411][ T10] __sys_sendmsg+0xcd/0x170 [ 3804.632411][ T10] do_syscall_64+0xc6/0x1e0 [ 3804.632411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3804.632411][ T10] [ 3810.595788][ T42] INFO: task modprobe:14797 blocked for more than 737 seconds. [ 3810.596156][ T42] Not tainted 6.8.0-virtme #1 [ 3810.596275][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3810.596488][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 3810.596762][ T42] Call Trace: [ 3810.596861][ T42] [ 3810.596932][ T42] __schedule+0x705/0x1ac0 [ 3810.597071][ T42] ? __pfx___schedule+0x10/0x10 [ 3810.597200][ T42] ? schedule+0x1a5/0x210 [ 3810.597297][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3810.597427][ T42] ? mark_lock+0x38/0x3e0 [ 3810.597521][ T42] ? do_raw_spin_lock+0x131/0x270 [ 3810.597665][ T42] ? schedule+0x1a5/0x210 [ 3810.597769][ T42] schedule+0xdf/0x210 [ 3810.597864][ T42] schedule_preempt_disabled+0x15/0x30 [ 3810.597990][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 3810.598119][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 3810.598276][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3810.598406][ T42] ? lock_acquire+0x1c1/0x220 [ 3810.598528][ T42] ? register_pernet_subsys+0x1a/0x50 [ 3810.598674][ T42] down_write+0x1c9/0x200 [ 3810.598773][ T42] ? __pfx_down_write+0x10/0x10 [ 3810.598898][ T42] ? __lock_release+0x103/0x460 [ 3810.599019][ T42] ? __create_object+0x5e/0xb0 [ 3810.599144][ T42] ? __pfx___lock_release+0x10/0x10 [ 3810.599271][ T42] register_pernet_subsys+0x1a/0x50 [ 3810.599397][ T42] tcf_register_action+0xa3/0x600 [ 3810.599521][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 3810.599696][ T42] do_one_initcall+0xc8/0x3f0 [ 3810.599824][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 3810.599952][ T42] ? __create_object+0x5e/0xb0 [ 3810.600078][ T42] ? kasan_unpoison+0x27/0x60 [ 3810.600205][ T42] do_init_module+0x233/0x740 [ 3810.600337][ T42] load_module+0x16b5/0x2350 [ 3810.600477][ T42] ? __pfx_load_module+0x10/0x10 [ 3810.600601][ T42] ? kernel_read_file+0x3d2/0x520 [ 3810.600743][ T42] ? kernel_read_file+0x300/0x520 [ 3810.600870][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 3810.601000][ T42] ? init_module_from_file+0xd2/0x130 [ 3810.601124][ T42] init_module_from_file+0xd2/0x130 [ 3810.601250][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 3810.601402][ T42] ? __lock_release+0x103/0x460 [ 3810.601524][ T42] ? idempotent_init_module+0x32a/0x620 [ 3810.601681][ T42] ? idempotent_init_module+0x32a/0x620 [ 3810.601809][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 3810.601934][ T42] idempotent_init_module+0x342/0x620 [ 3810.602451][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 3810.602623][ T42] __x64_sys_finit_module+0xbe/0x130 [ 3810.602758][ T42] do_syscall_64+0xc6/0x1e0 [ 3810.602887][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3810.603040][ T42] RIP: 0033:0x7f188f3c6e5d [ 3810.603175][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3810.603363][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 3810.603544][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 3810.603741][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 3810.603921][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 3810.604114][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 3810.604309][ T42] [ 3810.604404][ T42] [ 3810.604404][ T42] Showing all locks held in the system: [ 3810.604575][ T42] 4 locks held by kworker/u16:0/10: [ 3810.604705][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3810.604956][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3810.605175][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 3810.605393][ T42] #3: ffffffff9dd7d980 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4e/0x6e0 [ 3810.605617][ T42] 1 lock held by khungtaskd/42: [ 3810.605756][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 3810.605987][ T42] 2 locks held by kworker/u20:2/10034: [ 3810.606103][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3810.606353][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3810.606624][ T42] 1 lock held by modprobe/14797: [ 3810.606752][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 3810.607001][ T42] [ 3810.607062][ T42] ============================================= [ 3810.607062][ T42] [ 3814.715808][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3814.716297][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3814.716297][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.716297][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.716297][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.716297][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.716297][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.716297][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.716297][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.716297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.716297][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.716297][ T10] netlink_unicast+0x449/0x710 [ 3814.716297][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.716297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.716297][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.716297][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.716297][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.716297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.716297][ T10] [ 3814.718299][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3814.718299][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.718299][ T10] ipv6_find_idev+0x102/0x170 [ 3814.718299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.718299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.718299][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.718299][ T10] netlink_unicast+0x449/0x710 [ 3814.718299][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.718299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.718299][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.718299][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.718299][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.718299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.718299][ T10] [ 3814.719822][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3814.719822][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.719822][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.719822][ T10] ipv6_find_idev+0x102/0x170 [ 3814.719822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.719822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.719822][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.719822][ T10] netlink_unicast+0x449/0x710 [ 3814.719822][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.719822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.719822][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.719822][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.719822][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.719822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.719822][ T10] [ 3814.721490][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3814.721783][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3814.721783][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.721783][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.721783][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.721783][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.721783][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.721783][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.721783][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.721783][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.721783][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.721783][ T10] netlink_unicast+0x449/0x710 [ 3814.721783][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.721783][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.721783][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.721783][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.721783][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.721783][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.721783][ T10] [ 3814.723872][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3814.723872][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.723872][ T10] ipv6_find_idev+0x102/0x170 [ 3814.723872][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.723872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.723872][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.723872][ T10] netlink_unicast+0x449/0x710 [ 3814.723872][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.723872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.723872][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.723872][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.723872][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.723872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.723872][ T10] [ 3814.725393][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3814.725393][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.725393][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.725393][ T10] ipv6_find_idev+0x102/0x170 [ 3814.725393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.725393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.725393][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.725393][ T10] netlink_unicast+0x449/0x710 [ 3814.725393][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.725393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.725393][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.725393][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.725393][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.725393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.725393][ T10] [ 3814.727090][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3814.727357][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3814.727357][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.727357][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.727357][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.727357][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.727357][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.727357][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.727357][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.727357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.727357][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.727357][ T10] netlink_unicast+0x449/0x710 [ 3814.727357][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.727357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.727357][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.727357][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.727357][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.727357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.727357][ T10] [ 3814.729341][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3814.729341][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.729341][ T10] ipv6_find_idev+0x102/0x170 [ 3814.729341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.729341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.729341][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.729341][ T10] netlink_unicast+0x449/0x710 [ 3814.729341][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.729341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.729341][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.729341][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.729341][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.729341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.729341][ T10] [ 3814.730862][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3814.730862][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.730862][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.730862][ T10] ipv6_find_idev+0x102/0x170 [ 3814.730862][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.730862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.730862][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.730862][ T10] netlink_unicast+0x449/0x710 [ 3814.730862][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.730862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.730862][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.730862][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.730862][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.730862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.730862][ T10] [ 3814.732962][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3814.733224][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3814.733224][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.733224][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.733224][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.733224][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.733224][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.733224][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.733224][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.733224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.733224][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.733224][ T10] netlink_unicast+0x449/0x710 [ 3814.733224][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.733224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.733224][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.733224][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.733224][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.733224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.733224][ T10] [ 3814.735231][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3814.735231][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.735231][ T10] ipv6_find_idev+0x102/0x170 [ 3814.735231][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.735231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.735231][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.735231][ T10] netlink_unicast+0x449/0x710 [ 3814.735231][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.735231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.735231][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.735231][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.735231][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.735231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.735231][ T10] [ 3814.736760][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3814.736760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.736760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.736760][ T10] ipv6_find_idev+0x102/0x170 [ 3814.736760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.736760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.736760][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.736760][ T10] netlink_unicast+0x449/0x710 [ 3814.736760][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.736760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.736760][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.736760][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.736760][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.736760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.736760][ T10] [ 3814.738485][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3814.738817][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3814.738817][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.738817][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.738817][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.738817][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.738817][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.738817][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.738817][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.738817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.738817][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.738817][ T10] netlink_unicast+0x449/0x710 [ 3814.738817][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.738817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.738817][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.738817][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.738817][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.738817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.738817][ T10] [ 3814.740796][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3814.740796][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.740796][ T10] ipv6_find_idev+0x102/0x170 [ 3814.740796][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.740796][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.740796][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.740796][ T10] netlink_unicast+0x449/0x710 [ 3814.740796][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.740796][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.740796][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.740796][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.740796][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.740796][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.740796][ T10] [ 3814.742317][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3814.742317][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.742317][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.742317][ T10] ipv6_find_idev+0x102/0x170 [ 3814.742317][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.742317][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.742317][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.742317][ T10] netlink_unicast+0x449/0x710 [ 3814.742317][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.742317][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.742317][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.742317][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.742317][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.742317][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.742317][ T10] [ 3814.744025][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3814.744290][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3814.744290][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.744290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.744290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.744290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.744290][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.744290][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.744290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.744290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.744290][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.744290][ T10] netlink_unicast+0x449/0x710 [ 3814.744290][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.744290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.744290][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.744290][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.744290][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.744290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.744290][ T10] [ 3814.746329][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3814.746329][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.746329][ T10] ipv6_find_idev+0x102/0x170 [ 3814.746329][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.746329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.746329][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.746329][ T10] netlink_unicast+0x449/0x710 [ 3814.746329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.746329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.746329][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.746329][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.746329][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.746329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.746329][ T10] [ 3814.748044][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3814.748044][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.748044][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.748044][ T10] ipv6_find_idev+0x102/0x170 [ 3814.748044][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.748044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.748044][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.748044][ T10] netlink_unicast+0x449/0x710 [ 3814.748044][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.748044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.748044][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.748044][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.748044][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.748044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.748044][ T10] [ 3814.749988][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3814.750253][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3814.750253][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.750253][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.750253][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.750253][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.750253][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.750253][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.750253][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.750253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.750253][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.750253][ T10] netlink_unicast+0x449/0x710 [ 3814.750253][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.750253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.750253][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.750253][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.750253][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.750253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.750253][ T10] [ 3814.752476][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3814.752476][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.752476][ T10] ipv6_find_idev+0x102/0x170 [ 3814.752476][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.752476][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.752476][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.752476][ T10] netlink_unicast+0x449/0x710 [ 3814.752476][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.752476][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.752476][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.752476][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.752476][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.752476][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.752476][ T10] [ 3814.754119][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3814.754119][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.754119][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.754119][ T10] ipv6_find_idev+0x102/0x170 [ 3814.754119][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.754119][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.754119][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.754119][ T10] netlink_unicast+0x449/0x710 [ 3814.754119][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.754119][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.754119][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.754119][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.754119][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.754119][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.754119][ T10] [ 3814.756060][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3814.756345][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3814.756345][ T10] netdev_get_by_index+0x5e/0x80 [ 3814.756345][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3814.756345][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3814.756345][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3814.756345][ T10] ipv6_add_addr+0x411/0x2000 [ 3814.756345][ T10] inet6_addr_add+0x30e/0xa40 [ 3814.756345][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3814.756345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.756345][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.756345][ T10] netlink_unicast+0x449/0x710 [ 3814.756345][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.756345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.756345][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.756345][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.756345][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.756345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.756345][ T10] [ 3814.758492][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3814.758492][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3814.758492][ T10] ipv6_find_idev+0x102/0x170 [ 3814.758492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.758492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.758492][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.758492][ T10] netlink_unicast+0x449/0x710 [ 3814.758492][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.758492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.758492][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.758492][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.758492][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.758492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.758492][ T10] [ 3814.760251][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3814.760251][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3814.760251][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3814.760251][ T10] ipv6_find_idev+0x102/0x170 [ 3814.760251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3814.760251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3814.760251][ T10] netlink_rcv_skb+0x130/0x360 [ 3814.760251][ T10] netlink_unicast+0x449/0x710 [ 3814.760251][ T10] netlink_sendmsg+0x723/0xbe0 [ 3814.760251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3814.760251][ T10] ___sys_sendmsg+0xee/0x170 [ 3814.760251][ T10] __sys_sendmsg+0xcd/0x170 [ 3814.760251][ T10] do_syscall_64+0xc6/0x1e0 [ 3814.760251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3814.760251][ T10] [ 3825.003766][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3825.004281][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3825.004281][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.004281][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.004281][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.004281][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.004281][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.004281][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.004281][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.004281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.004281][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.004281][ T10] netlink_unicast+0x449/0x710 [ 3825.004281][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.004281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.004281][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.004281][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.004281][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.004281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.004281][ T10] [ 3825.006318][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3825.006318][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.006318][ T10] ipv6_find_idev+0x102/0x170 [ 3825.006318][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.006318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.006318][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.006318][ T10] netlink_unicast+0x449/0x710 [ 3825.006318][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.006318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.006318][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.006318][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.006318][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.006318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.006318][ T10] [ 3825.007894][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3825.007894][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.007894][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.007894][ T10] ipv6_find_idev+0x102/0x170 [ 3825.007894][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.007894][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.007894][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.007894][ T10] netlink_unicast+0x449/0x710 [ 3825.007894][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.007894][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.007894][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.007894][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.007894][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.007894][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.007894][ T10] [ 3825.009630][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3825.009920][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3825.009920][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.009920][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.009920][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.009920][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.009920][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.009920][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.009920][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.009920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.009920][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.009920][ T10] netlink_unicast+0x449/0x710 [ 3825.009920][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.009920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.009920][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.009920][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.009920][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.009920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.009920][ T10] [ 3825.011930][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3825.011930][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.011930][ T10] ipv6_find_idev+0x102/0x170 [ 3825.011930][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.011930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.011930][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.011930][ T10] netlink_unicast+0x449/0x710 [ 3825.011930][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.011930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.011930][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.011930][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.011930][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.011930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.011930][ T10] [ 3825.013589][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3825.013589][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.013589][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.013589][ T10] ipv6_find_idev+0x102/0x170 [ 3825.013589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.013589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.013589][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.013589][ T10] netlink_unicast+0x449/0x710 [ 3825.013589][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.013589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.013589][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.013589][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.013589][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.013589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.013589][ T10] [ 3825.015304][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3825.015571][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3825.015571][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.015571][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.015571][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.015571][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.015571][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.015571][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.015571][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.015571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.015571][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.015571][ T10] netlink_unicast+0x449/0x710 [ 3825.015571][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.015571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.015571][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.015571][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.015571][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.015571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.015571][ T10] [ 3825.017602][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3825.017602][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.017602][ T10] ipv6_find_idev+0x102/0x170 [ 3825.017602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.017602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.017602][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.017602][ T10] netlink_unicast+0x449/0x710 [ 3825.017602][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.017602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.017602][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.017602][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.017602][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.017602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.017602][ T10] [ 3825.019146][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3825.019146][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.019146][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.019146][ T10] ipv6_find_idev+0x102/0x170 [ 3825.019146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.019146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.019146][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.019146][ T10] netlink_unicast+0x449/0x710 [ 3825.019146][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.019146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.019146][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.019146][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.019146][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.019146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.019146][ T10] [ 3825.020844][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3825.021111][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3825.021111][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.021111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.021111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.021111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.021111][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.021111][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.021111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.021111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.021111][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.021111][ T10] netlink_unicast+0x449/0x710 [ 3825.021111][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.021111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.021111][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.021111][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.021111][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.021111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.021111][ T10] [ 3825.023124][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3825.023124][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.023124][ T10] ipv6_find_idev+0x102/0x170 [ 3825.023124][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.023124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.023124][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.023124][ T10] netlink_unicast+0x449/0x710 [ 3825.023124][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.023124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.023124][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.023124][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.023124][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.023124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.023124][ T10] [ 3825.024661][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3825.024661][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.024661][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.024661][ T10] ipv6_find_idev+0x102/0x170 [ 3825.024661][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.024661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.024661][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.024661][ T10] netlink_unicast+0x449/0x710 [ 3825.024661][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.024661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.024661][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.024661][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.024661][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.024661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.024661][ T10] [ 3825.026763][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3825.027361][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3825.027361][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.027361][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.027361][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.027361][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.027361][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.027361][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.027361][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.027361][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.027361][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.027361][ T10] netlink_unicast+0x449/0x710 [ 3825.027361][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.027361][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.027361][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.027361][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.027361][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.027361][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.027361][ T10] [ 3825.029362][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3825.029362][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.029362][ T10] ipv6_find_idev+0x102/0x170 [ 3825.029362][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.029362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.029362][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.029362][ T10] netlink_unicast+0x449/0x710 [ 3825.029362][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.029362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.029362][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.029362][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.029362][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.029362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.029362][ T10] [ 3825.030900][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3825.030900][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.030900][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.030900][ T10] ipv6_find_idev+0x102/0x170 [ 3825.030900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.030900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.030900][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.030900][ T10] netlink_unicast+0x449/0x710 [ 3825.030900][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.030900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.030900][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.030900][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.030900][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.030900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.030900][ T10] [ 3825.032600][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3825.032973][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3825.032973][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.032973][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.032973][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.032973][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.032973][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.032973][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.032973][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.032973][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.032973][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.032973][ T10] netlink_unicast+0x449/0x710 [ 3825.032973][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.032973][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.032973][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.032973][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.032973][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.032973][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.032973][ T10] [ 3825.034970][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3825.034970][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.034970][ T10] ipv6_find_idev+0x102/0x170 [ 3825.034970][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.034970][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.034970][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.034970][ T10] netlink_unicast+0x449/0x710 [ 3825.034970][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.034970][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.034970][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.034970][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.034970][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.034970][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.034970][ T10] [ 3825.036571][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3825.036571][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.036571][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.036571][ T10] ipv6_find_idev+0x102/0x170 [ 3825.036571][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.036571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.036571][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.036571][ T10] netlink_unicast+0x449/0x710 [ 3825.036571][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.036571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.036571][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.036571][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.036571][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.036571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.036571][ T10] [ 3825.038477][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3825.038808][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3825.038808][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.038808][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.038808][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.038808][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.038808][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.038808][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.038808][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.038808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.038808][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.038808][ T10] netlink_unicast+0x449/0x710 [ 3825.038808][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.038808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.038808][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.038808][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.038808][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.038808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.038808][ T10] [ 3825.040982][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3825.040982][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.040982][ T10] ipv6_find_idev+0x102/0x170 [ 3825.040982][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.040982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.040982][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.040982][ T10] netlink_unicast+0x449/0x710 [ 3825.040982][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.040982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.040982][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.040982][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.040982][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.040982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.040982][ T10] [ 3825.042807][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3825.042807][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.042807][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.042807][ T10] ipv6_find_idev+0x102/0x170 [ 3825.042807][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.042807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.042807][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.042807][ T10] netlink_unicast+0x449/0x710 [ 3825.042807][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.042807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.042807][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.042807][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.042807][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.042807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.042807][ T10] [ 3825.044720][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3825.045036][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3825.045036][ T10] netdev_get_by_index+0x5e/0x80 [ 3825.045036][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3825.045036][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3825.045036][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3825.045036][ T10] ipv6_add_addr+0x411/0x2000 [ 3825.045036][ T10] inet6_addr_add+0x30e/0xa40 [ 3825.045036][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3825.045036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.045036][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.045036][ T10] netlink_unicast+0x449/0x710 [ 3825.045036][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.045036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.045036][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.045036][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.045036][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.045036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.045036][ T10] [ 3825.047199][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3825.047199][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3825.047199][ T10] ipv6_find_idev+0x102/0x170 [ 3825.047199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.047199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.047199][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.047199][ T10] netlink_unicast+0x449/0x710 [ 3825.047199][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.047199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.047199][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.047199][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.047199][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.047199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.047199][ T10] [ 3825.048909][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3825.048909][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3825.048909][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3825.048909][ T10] ipv6_find_idev+0x102/0x170 [ 3825.048909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3825.048909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3825.048909][ T10] netlink_rcv_skb+0x130/0x360 [ 3825.048909][ T10] netlink_unicast+0x449/0x710 [ 3825.048909][ T10] netlink_sendmsg+0x723/0xbe0 [ 3825.048909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3825.048909][ T10] ___sys_sendmsg+0xee/0x170 [ 3825.048909][ T10] __sys_sendmsg+0xcd/0x170 [ 3825.048909][ T10] do_syscall_64+0xc6/0x1e0 [ 3825.048909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3825.048909][ T10] [ 3835.187757][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3835.188258][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3835.188258][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.188258][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.188258][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.188258][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.188258][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.188258][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.188258][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.188258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.188258][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.188258][ T10] netlink_unicast+0x449/0x710 [ 3835.188258][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.188258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.188258][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.188258][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.188258][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.188258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.188258][ T10] [ 3835.190264][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3835.190264][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.190264][ T10] ipv6_find_idev+0x102/0x170 [ 3835.190264][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.190264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.190264][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.190264][ T10] netlink_unicast+0x449/0x710 [ 3835.190264][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.190264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.190264][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.190264][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.190264][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.190264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.190264][ T10] [ 3835.191794][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3835.191794][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.191794][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.191794][ T10] ipv6_find_idev+0x102/0x170 [ 3835.191794][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.191794][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.191794][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.191794][ T10] netlink_unicast+0x449/0x710 [ 3835.191794][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.191794][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.191794][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.191794][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.191794][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.191794][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.191794][ T10] [ 3835.193486][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3835.193766][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3835.193766][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.193766][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.193766][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.193766][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.193766][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.193766][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.193766][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.193766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.193766][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.193766][ T10] netlink_unicast+0x449/0x710 [ 3835.193766][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.193766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.193766][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.193766][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.193766][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.193766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.193766][ T10] [ 3835.195739][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3835.195739][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.195739][ T10] ipv6_find_idev+0x102/0x170 [ 3835.195739][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.195739][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.195739][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.195739][ T10] netlink_unicast+0x449/0x710 [ 3835.195739][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.195739][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.195739][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.195739][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.195739][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.195739][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.195739][ T10] [ 3835.197263][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3835.197263][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.197263][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.197263][ T10] ipv6_find_idev+0x102/0x170 [ 3835.197263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.197263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.197263][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.197263][ T10] netlink_unicast+0x449/0x710 [ 3835.197263][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.197263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.197263][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.197263][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.197263][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.197263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.197263][ T10] [ 3835.198931][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3835.199211][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3835.199211][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.199211][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.199211][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.199211][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.199211][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.199211][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.199211][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.199211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.199211][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.199211][ T10] netlink_unicast+0x449/0x710 [ 3835.199211][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.199211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.199211][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.199211][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.199211][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.199211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.199211][ T10] [ 3835.201189][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3835.201189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.201189][ T10] ipv6_find_idev+0x102/0x170 [ 3835.201189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.201189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.201189][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.201189][ T10] netlink_unicast+0x449/0x710 [ 3835.201189][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.201189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.201189][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.201189][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.201189][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.201189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.201189][ T10] [ 3835.202719][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3835.202719][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.202719][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.202719][ T10] ipv6_find_idev+0x102/0x170 [ 3835.202719][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.202719][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.202719][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.202719][ T10] netlink_unicast+0x449/0x710 [ 3835.202719][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.202719][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.202719][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.202719][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.202719][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.202719][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.202719][ T10] [ 3835.204386][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3835.204649][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3835.204649][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.204649][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.204649][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.204649][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.204649][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.204649][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.204649][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.204649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.204649][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.204649][ T10] netlink_unicast+0x449/0x710 [ 3835.204649][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.204649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.204649][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.204649][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.204649][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.204649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.204649][ T10] [ 3835.207145][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3835.207145][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.207145][ T10] ipv6_find_idev+0x102/0x170 [ 3835.207145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.207145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.207145][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.207145][ T10] netlink_unicast+0x449/0x710 [ 3835.207145][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.207145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.207145][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.207145][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.207145][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.207145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.207145][ T10] [ 3835.209061][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3835.209061][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.209061][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.209061][ T10] ipv6_find_idev+0x102/0x170 [ 3835.209061][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.209061][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.209061][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.209061][ T10] netlink_unicast+0x449/0x710 [ 3835.209061][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.209061][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.209061][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.209061][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.209061][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.209061][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.209061][ T10] [ 3835.211133][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3835.211393][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3835.211393][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.211393][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.211393][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.211393][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.211393][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.211393][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.211393][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.211393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.211393][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.211393][ T10] netlink_unicast+0x449/0x710 [ 3835.211393][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.211393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.211393][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.211393][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.211393][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.211393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.211393][ T10] [ 3835.213373][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3835.213373][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.213373][ T10] ipv6_find_idev+0x102/0x170 [ 3835.213373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.213373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.213373][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.213373][ T10] netlink_unicast+0x449/0x710 [ 3835.213373][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.213373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.213373][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.213373][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.213373][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.213373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.213373][ T10] [ 3835.214888][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3835.214888][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.214888][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.214888][ T10] ipv6_find_idev+0x102/0x170 [ 3835.214888][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.214888][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.214888][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.214888][ T10] netlink_unicast+0x449/0x710 [ 3835.214888][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.214888][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.214888][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.214888][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.214888][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.214888][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.214888][ T10] [ 3835.216591][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3835.216910][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3835.216910][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.216910][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.216910][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.216910][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.216910][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.216910][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.216910][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.216910][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.216910][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.216910][ T10] netlink_unicast+0x449/0x710 [ 3835.216910][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.216910][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.216910][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.216910][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.216910][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.216910][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.216910][ T10] [ 3835.219004][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3835.219004][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.219004][ T10] ipv6_find_idev+0x102/0x170 [ 3835.219004][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.219004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.219004][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.219004][ T10] netlink_unicast+0x449/0x710 [ 3835.219004][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.219004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.219004][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.219004][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.219004][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.219004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.219004][ T10] [ 3835.220699][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3835.220699][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.220699][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.220699][ T10] ipv6_find_idev+0x102/0x170 [ 3835.220699][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.220699][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.220699][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.220699][ T10] netlink_unicast+0x449/0x710 [ 3835.220699][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.220699][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.220699][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.220699][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.220699][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.220699][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.220699][ T10] [ 3835.222594][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3835.222912][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3835.222912][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.222912][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.222912][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.222912][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.222912][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.222912][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.222912][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.222912][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.222912][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.222912][ T10] netlink_unicast+0x449/0x710 [ 3835.222912][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.222912][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.222912][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.222912][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.222912][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.222912][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.222912][ T10] [ 3835.225062][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3835.225062][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.225062][ T10] ipv6_find_idev+0x102/0x170 [ 3835.225062][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.225062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.225062][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.225062][ T10] netlink_unicast+0x449/0x710 [ 3835.225062][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.225062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.225062][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.225062][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.225062][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.225062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.225062][ T10] [ 3835.226816][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3835.226816][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.226816][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.226816][ T10] ipv6_find_idev+0x102/0x170 [ 3835.226816][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.226816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.226816][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.226816][ T10] netlink_unicast+0x449/0x710 [ 3835.226816][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.226816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.226816][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.226816][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.226816][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.226816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.226816][ T10] [ 3835.228715][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3835.228983][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3835.228983][ T10] netdev_get_by_index+0x5e/0x80 [ 3835.228983][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3835.228983][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3835.228983][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3835.228983][ T10] ipv6_add_addr+0x411/0x2000 [ 3835.228983][ T10] inet6_addr_add+0x30e/0xa40 [ 3835.228983][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3835.228983][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.228983][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.228983][ T10] netlink_unicast+0x449/0x710 [ 3835.228983][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.228983][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.228983][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.228983][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.228983][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.228983][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.228983][ T10] [ 3835.231546][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3835.231546][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3835.231546][ T10] ipv6_find_idev+0x102/0x170 [ 3835.231546][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.231546][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.231546][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.231546][ T10] netlink_unicast+0x449/0x710 [ 3835.231546][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.231546][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.231546][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.231546][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.231546][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.231546][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.231546][ T10] [ 3835.233245][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3835.233245][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3835.233245][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3835.233245][ T10] ipv6_find_idev+0x102/0x170 [ 3835.233245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3835.233245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3835.233245][ T10] netlink_rcv_skb+0x130/0x360 [ 3835.233245][ T10] netlink_unicast+0x449/0x710 [ 3835.233245][ T10] netlink_sendmsg+0x723/0xbe0 [ 3835.233245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3835.233245][ T10] ___sys_sendmsg+0xee/0x170 [ 3835.233245][ T10] __sys_sendmsg+0xcd/0x170 [ 3835.233245][ T10] do_syscall_64+0xc6/0x1e0 [ 3835.233245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3835.233245][ T10] [ 3845.347758][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3845.348264][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3845.348264][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.348264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.348264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.348264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.348264][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.348264][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.348264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.348264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.348264][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.348264][ T10] netlink_unicast+0x449/0x710 [ 3845.348264][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.348264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.348264][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.348264][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.348264][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.348264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.348264][ T10] [ 3845.350269][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3845.350269][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.350269][ T10] ipv6_find_idev+0x102/0x170 [ 3845.350269][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.350269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.350269][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.350269][ T10] netlink_unicast+0x449/0x710 [ 3845.350269][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.350269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.350269][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.350269][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.350269][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.350269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.350269][ T10] [ 3845.351798][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3845.351798][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.351798][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.351798][ T10] ipv6_find_idev+0x102/0x170 [ 3845.351798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.351798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.351798][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.351798][ T10] netlink_unicast+0x449/0x710 [ 3845.351798][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.351798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.351798][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.351798][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.351798][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.351798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.351798][ T10] [ 3845.353487][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3845.353768][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3845.353768][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.353768][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.353768][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.353768][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.353768][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.353768][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.353768][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.353768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.353768][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.353768][ T10] netlink_unicast+0x449/0x710 [ 3845.353768][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.353768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.353768][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.353768][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.353768][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.353768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.353768][ T10] [ 3845.355740][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3845.355740][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.355740][ T10] ipv6_find_idev+0x102/0x170 [ 3845.355740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.355740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.355740][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.355740][ T10] netlink_unicast+0x449/0x710 [ 3845.355740][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.355740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.355740][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.355740][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.355740][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.355740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.355740][ T10] [ 3845.357265][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3845.357265][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.357265][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.357265][ T10] ipv6_find_idev+0x102/0x170 [ 3845.357265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.357265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.357265][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.357265][ T10] netlink_unicast+0x449/0x710 [ 3845.357265][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.357265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.357265][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.357265][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.357265][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.357265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.357265][ T10] [ 3845.358931][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3845.359198][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3845.359198][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.359198][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.359198][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.359198][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.359198][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.359198][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.359198][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.359198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.359198][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.359198][ T10] netlink_unicast+0x449/0x710 [ 3845.359198][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.359198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.359198][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.359198][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.359198][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.359198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.359198][ T10] [ 3845.361170][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3845.361170][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.361170][ T10] ipv6_find_idev+0x102/0x170 [ 3845.361170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.361170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.361170][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.361170][ T10] netlink_unicast+0x449/0x710 [ 3845.361170][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.361170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.361170][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.361170][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.361170][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.361170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.361170][ T10] [ 3845.362693][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3845.362693][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.362693][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.362693][ T10] ipv6_find_idev+0x102/0x170 [ 3845.362693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.362693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.362693][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.362693][ T10] netlink_unicast+0x449/0x710 [ 3845.362693][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.362693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.362693][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.362693][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.362693][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.362693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.362693][ T10] [ 3845.364360][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3845.364622][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3845.364622][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.364622][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.364622][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.364622][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.364622][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.364622][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.364622][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.364622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.364622][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.364622][ T10] netlink_unicast+0x449/0x710 [ 3845.364622][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.364622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.364622][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.364622][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.364622][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.364622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.364622][ T10] [ 3845.366600][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3845.366600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.366600][ T10] ipv6_find_idev+0x102/0x170 [ 3845.366600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.366600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.366600][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.366600][ T10] netlink_unicast+0x449/0x710 [ 3845.366600][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.366600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.366600][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.366600][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.366600][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.366600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.366600][ T10] [ 3845.368120][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3845.368120][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.368120][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.368120][ T10] ipv6_find_idev+0x102/0x170 [ 3845.368120][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.368120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.368120][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.368120][ T10] netlink_unicast+0x449/0x710 [ 3845.368120][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.368120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.368120][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.368120][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.368120][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.368120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.368120][ T10] [ 3845.370188][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3845.370448][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3845.370448][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.370448][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.370448][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.370448][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.370448][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.370448][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.370448][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.370448][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.370448][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.370448][ T10] netlink_unicast+0x449/0x710 [ 3845.370448][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.370448][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.370448][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.370448][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.370448][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.370448][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.370448][ T10] [ 3845.372427][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3845.372427][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.372427][ T10] ipv6_find_idev+0x102/0x170 [ 3845.372427][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.372427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.372427][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.372427][ T10] netlink_unicast+0x449/0x710 [ 3845.372427][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.372427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.372427][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.372427][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.372427][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.372427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.372427][ T10] [ 3845.373946][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3845.373946][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.373946][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.373946][ T10] ipv6_find_idev+0x102/0x170 [ 3845.373946][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.373946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.373946][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.373946][ T10] netlink_unicast+0x449/0x710 [ 3845.373946][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.373946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.373946][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.373946][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.373946][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.373946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.373946][ T10] [ 3845.375664][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3845.375934][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3845.375934][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.375934][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.375934][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.375934][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.375934][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.375934][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.375934][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.375934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.375934][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.375934][ T10] netlink_unicast+0x449/0x710 [ 3845.375934][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.375934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.375934][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.375934][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.375934][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.375934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.375934][ T10] [ 3845.378030][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3845.378030][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.378030][ T10] ipv6_find_idev+0x102/0x170 [ 3845.378030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.378030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.378030][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.378030][ T10] netlink_unicast+0x449/0x710 [ 3845.378030][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.378030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.378030][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.378030][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.378030][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.378030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.378030][ T10] [ 3845.379788][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3845.379788][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.379788][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.379788][ T10] ipv6_find_idev+0x102/0x170 [ 3845.379788][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.379788][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.379788][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.379788][ T10] netlink_unicast+0x449/0x710 [ 3845.379788][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.379788][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.379788][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.379788][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.379788][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.379788][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.379788][ T10] [ 3845.381724][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3845.381996][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3845.381996][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.381996][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.381996][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.381996][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.381996][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.381996][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.381996][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.381996][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.381996][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.381996][ T10] netlink_unicast+0x449/0x710 [ 3845.381996][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.381996][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.381996][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.381996][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.381996][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.381996][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.381996][ T10] [ 3845.384150][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3845.384150][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.384150][ T10] ipv6_find_idev+0x102/0x170 [ 3845.384150][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.384150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.384150][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.384150][ T10] netlink_unicast+0x449/0x710 [ 3845.384150][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.384150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.384150][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.384150][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.384150][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.384150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.384150][ T10] [ 3845.385845][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3845.385845][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.385845][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.385845][ T10] ipv6_find_idev+0x102/0x170 [ 3845.385845][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.385845][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.385845][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.385845][ T10] netlink_unicast+0x449/0x710 [ 3845.385845][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.385845][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.385845][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.385845][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.385845][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.385845][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.385845][ T10] [ 3845.387779][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3845.388051][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3845.388051][ T10] netdev_get_by_index+0x5e/0x80 [ 3845.388051][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3845.388051][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3845.388051][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3845.388051][ T10] ipv6_add_addr+0x411/0x2000 [ 3845.388051][ T10] inet6_addr_add+0x30e/0xa40 [ 3845.388051][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3845.388051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.388051][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.388051][ T10] netlink_unicast+0x449/0x710 [ 3845.388051][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.388051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.388051][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.388051][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.388051][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.388051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.388051][ T10] [ 3845.390259][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3845.390259][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3845.390259][ T10] ipv6_find_idev+0x102/0x170 [ 3845.390259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.390259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.390259][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.390259][ T10] netlink_unicast+0x449/0x710 [ 3845.390259][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.390259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.390259][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.390259][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.390259][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.390259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.390259][ T10] [ 3845.392075][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3845.392075][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3845.392075][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3845.392075][ T10] ipv6_find_idev+0x102/0x170 [ 3845.392075][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3845.392075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3845.392075][ T10] netlink_rcv_skb+0x130/0x360 [ 3845.392075][ T10] netlink_unicast+0x449/0x710 [ 3845.392075][ T10] netlink_sendmsg+0x723/0xbe0 [ 3845.392075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3845.392075][ T10] ___sys_sendmsg+0xee/0x170 [ 3845.392075][ T10] __sys_sendmsg+0xcd/0x170 [ 3845.392075][ T10] do_syscall_64+0xc6/0x1e0 [ 3845.392075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3845.392075][ T10] [ 3855.395706][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3855.396198][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3855.396198][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.396198][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.396198][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.396198][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.396198][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.396198][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.396198][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.396198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.396198][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.396198][ T10] netlink_unicast+0x449/0x710 [ 3855.396198][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.396198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.396198][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.396198][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.396198][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.396198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.396198][ T10] [ 3855.398208][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3855.398208][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.398208][ T10] ipv6_find_idev+0x102/0x170 [ 3855.398208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.398208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.398208][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.398208][ T10] netlink_unicast+0x449/0x710 [ 3855.398208][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.398208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.398208][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.398208][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.398208][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.398208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.398208][ T10] [ 3855.399759][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3855.399759][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.399759][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.399759][ T10] ipv6_find_idev+0x102/0x170 [ 3855.399759][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.399759][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.399759][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.399759][ T10] netlink_unicast+0x449/0x710 [ 3855.399759][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.399759][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.399759][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.399759][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.399759][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.399759][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.399759][ T10] [ 3855.401442][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3855.401718][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3855.401718][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.401718][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.401718][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.401718][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.401718][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.401718][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.401718][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.401718][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.401718][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.401718][ T10] netlink_unicast+0x449/0x710 [ 3855.401718][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.401718][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.401718][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.401718][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.401718][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.401718][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.401718][ T10] [ 3855.403701][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3855.403701][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.403701][ T10] ipv6_find_idev+0x102/0x170 [ 3855.403701][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.403701][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.403701][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.403701][ T10] netlink_unicast+0x449/0x710 [ 3855.403701][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.403701][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.403701][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.403701][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.403701][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.403701][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.403701][ T10] [ 3855.405215][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3855.405215][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.405215][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.405215][ T10] ipv6_find_idev+0x102/0x170 [ 3855.405215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.405215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.405215][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.405215][ T10] netlink_unicast+0x449/0x710 [ 3855.405215][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.405215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.405215][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.405215][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.405215][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.405215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.405215][ T10] [ 3855.406876][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3855.407149][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3855.407149][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.407149][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.407149][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.407149][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.407149][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.407149][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.407149][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.407149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.407149][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.407149][ T10] netlink_unicast+0x449/0x710 [ 3855.407149][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.407149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.407149][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.407149][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.407149][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.407149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.407149][ T10] [ 3855.409134][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3855.409134][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.409134][ T10] ipv6_find_idev+0x102/0x170 [ 3855.409134][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.409134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.409134][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.409134][ T10] netlink_unicast+0x449/0x710 [ 3855.409134][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.409134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.409134][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.409134][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.409134][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.409134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.409134][ T10] [ 3855.410657][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3855.410657][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.410657][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.410657][ T10] ipv6_find_idev+0x102/0x170 [ 3855.410657][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.410657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.410657][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.410657][ T10] netlink_unicast+0x449/0x710 [ 3855.410657][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.410657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.410657][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.410657][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.410657][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.410657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.410657][ T10] [ 3855.412325][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3855.412595][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3855.412595][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.412595][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.412595][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.412595][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.412595][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.412595][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.412595][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.412595][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.412595][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.412595][ T10] netlink_unicast+0x449/0x710 [ 3855.412595][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.412595][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.412595][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.412595][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.412595][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.412595][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.412595][ T10] [ 3855.414566][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3855.414566][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.414566][ T10] ipv6_find_idev+0x102/0x170 [ 3855.414566][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.414566][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.414566][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.414566][ T10] netlink_unicast+0x449/0x710 [ 3855.414566][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.414566][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.414566][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.414566][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.414566][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.414566][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.414566][ T10] [ 3855.416082][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3855.416082][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.416082][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.416082][ T10] ipv6_find_idev+0x102/0x170 [ 3855.416082][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.416082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.416082][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.416082][ T10] netlink_unicast+0x449/0x710 [ 3855.416082][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.416082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.416082][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.416082][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.416082][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.416082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.416082][ T10] [ 3855.418139][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3855.418399][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3855.418399][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.418399][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.418399][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.418399][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.418399][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.418399][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.418399][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.418399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.418399][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.418399][ T10] netlink_unicast+0x449/0x710 [ 3855.418399][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.418399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.418399][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.418399][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.418399][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.418399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.418399][ T10] [ 3855.420364][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3855.420364][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.420364][ T10] ipv6_find_idev+0x102/0x170 [ 3855.420364][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.420364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.420364][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.420364][ T10] netlink_unicast+0x449/0x710 [ 3855.420364][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.420364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.420364][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.420364][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.420364][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.420364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.420364][ T10] [ 3855.421874][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3855.421874][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.421874][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.421874][ T10] ipv6_find_idev+0x102/0x170 [ 3855.421874][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.421874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.421874][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.421874][ T10] netlink_unicast+0x449/0x710 [ 3855.421874][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.421874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.421874][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.421874][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.421874][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.421874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.421874][ T10] [ 3855.423607][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3855.423928][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3855.423928][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.423928][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.423928][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.423928][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.423928][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.423928][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.423928][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.423928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.423928][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.423928][ T10] netlink_unicast+0x449/0x710 [ 3855.423928][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.423928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.423928][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.423928][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.423928][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.423928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.423928][ T10] [ 3855.425974][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3855.425974][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.425974][ T10] ipv6_find_idev+0x102/0x170 [ 3855.425974][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.425974][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.425974][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.425974][ T10] netlink_unicast+0x449/0x710 [ 3855.425974][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.425974][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.425974][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.425974][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.425974][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.425974][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.425974][ T10] [ 3855.427616][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3855.427616][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.427616][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.427616][ T10] ipv6_find_idev+0x102/0x170 [ 3855.427616][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.427616][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.427616][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.427616][ T10] netlink_unicast+0x449/0x710 [ 3855.427616][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.427616][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.427616][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.427616][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.427616][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.427616][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.427616][ T10] [ 3855.429368][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3855.429641][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3855.429641][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.429641][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.429641][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.429641][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.429641][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.429641][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.429641][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.429641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.429641][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.429641][ T10] netlink_unicast+0x449/0x710 [ 3855.429641][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.429641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.429641][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.429641][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.429641][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.429641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.429641][ T10] [ 3855.431741][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3855.431741][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.431741][ T10] ipv6_find_idev+0x102/0x170 [ 3855.431741][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.431741][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.431741][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.431741][ T10] netlink_unicast+0x449/0x710 [ 3855.431741][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.431741][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.431741][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.431741][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.431741][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.431741][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.431741][ T10] [ 3855.433500][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3855.433500][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.433500][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.433500][ T10] ipv6_find_idev+0x102/0x170 [ 3855.433500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.433500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.433500][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.433500][ T10] netlink_unicast+0x449/0x710 [ 3855.433500][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.433500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.433500][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.433500][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.433500][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.433500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.433500][ T10] [ 3855.435268][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3855.435540][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3855.435540][ T10] netdev_get_by_index+0x5e/0x80 [ 3855.435540][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3855.435540][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3855.435540][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3855.435540][ T10] ipv6_add_addr+0x411/0x2000 [ 3855.435540][ T10] inet6_addr_add+0x30e/0xa40 [ 3855.435540][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3855.435540][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.435540][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.435540][ T10] netlink_unicast+0x449/0x710 [ 3855.435540][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.435540][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.435540][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.435540][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.435540][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.435540][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.435540][ T10] [ 3855.437643][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3855.437643][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3855.437643][ T10] ipv6_find_idev+0x102/0x170 [ 3855.437643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.437643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.437643][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.437643][ T10] netlink_unicast+0x449/0x710 [ 3855.437643][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.437643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.437643][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.437643][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.437643][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.437643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.437643][ T10] [ 3855.439289][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3855.439289][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3855.439289][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3855.439289][ T10] ipv6_find_idev+0x102/0x170 [ 3855.439289][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3855.439289][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3855.439289][ T10] netlink_rcv_skb+0x130/0x360 [ 3855.439289][ T10] netlink_unicast+0x449/0x710 [ 3855.439289][ T10] netlink_sendmsg+0x723/0xbe0 [ 3855.439289][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3855.439289][ T10] ___sys_sendmsg+0xee/0x170 [ 3855.439289][ T10] __sys_sendmsg+0xcd/0x170 [ 3855.439289][ T10] do_syscall_64+0xc6/0x1e0 [ 3855.439289][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3855.439289][ T10] [ 3865.683789][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3865.684313][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3865.684313][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.684313][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.684313][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.684313][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.684313][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.684313][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.684313][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.684313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.684313][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.684313][ T10] netlink_unicast+0x449/0x710 [ 3865.684313][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.684313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.684313][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.684313][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.684313][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.684313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.684313][ T10] [ 3865.686305][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3865.686305][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.686305][ T10] ipv6_find_idev+0x102/0x170 [ 3865.686305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.686305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.686305][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.686305][ T10] netlink_unicast+0x449/0x710 [ 3865.686305][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.686305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.686305][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.686305][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.686305][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.686305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.686305][ T10] [ 3865.687834][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3865.687834][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.687834][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.687834][ T10] ipv6_find_idev+0x102/0x170 [ 3865.687834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.687834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.687834][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.687834][ T10] netlink_unicast+0x449/0x710 [ 3865.687834][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.687834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.687834][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.687834][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.687834][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.687834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.687834][ T10] [ 3865.689508][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3865.689793][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3865.689793][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.689793][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.689793][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.689793][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.689793][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.689793][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.689793][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.689793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.689793][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.689793][ T10] netlink_unicast+0x449/0x710 [ 3865.689793][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.689793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.689793][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.689793][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.689793][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.689793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.689793][ T10] [ 3865.691792][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3865.691792][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.691792][ T10] ipv6_find_idev+0x102/0x170 [ 3865.691792][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.691792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.691792][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.691792][ T10] netlink_unicast+0x449/0x710 [ 3865.691792][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.691792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.691792][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.691792][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.691792][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.691792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.691792][ T10] [ 3865.693348][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3865.693348][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.693348][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.693348][ T10] ipv6_find_idev+0x102/0x170 [ 3865.693348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.693348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.693348][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.693348][ T10] netlink_unicast+0x449/0x710 [ 3865.693348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.693348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.693348][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.693348][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.693348][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.693348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.693348][ T10] [ 3865.695037][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3865.695301][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3865.695301][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.695301][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.695301][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.695301][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.695301][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.695301][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.695301][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.695301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.695301][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.695301][ T10] netlink_unicast+0x449/0x710 [ 3865.695301][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.695301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.695301][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.695301][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.695301][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.695301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.695301][ T10] [ 3865.697276][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3865.697276][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.697276][ T10] ipv6_find_idev+0x102/0x170 [ 3865.697276][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.697276][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.697276][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.697276][ T10] netlink_unicast+0x449/0x710 [ 3865.697276][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.697276][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.697276][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.697276][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.697276][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.697276][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.697276][ T10] [ 3865.698814][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3865.698814][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.698814][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.698814][ T10] ipv6_find_idev+0x102/0x170 [ 3865.698814][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.698814][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.698814][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.698814][ T10] netlink_unicast+0x449/0x710 [ 3865.698814][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.698814][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.698814][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.698814][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.698814][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.698814][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.698814][ T10] [ 3865.700478][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3865.701182][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3865.701182][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.701182][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.701182][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.701182][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.701182][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.701182][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.701182][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.701182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.701182][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.701182][ T10] netlink_unicast+0x449/0x710 [ 3865.701182][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.701182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.701182][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.701182][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.701182][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.701182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.701182][ T10] [ 3865.703163][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3865.703163][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.703163][ T10] ipv6_find_idev+0x102/0x170 [ 3865.703163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.703163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.703163][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.703163][ T10] netlink_unicast+0x449/0x710 [ 3865.703163][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.703163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.703163][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.703163][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.703163][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.703163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.703163][ T10] [ 3865.704685][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3865.704685][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.704685][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.704685][ T10] ipv6_find_idev+0x102/0x170 [ 3865.704685][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.704685][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.704685][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.704685][ T10] netlink_unicast+0x449/0x710 [ 3865.704685][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.704685][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.704685][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.704685][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.704685][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.704685][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.704685][ T10] [ 3865.706396][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3865.706677][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3865.706677][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.706677][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.706677][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.706677][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.706677][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.706677][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.706677][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.706677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.706677][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.706677][ T10] netlink_unicast+0x449/0x710 [ 3865.706677][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.706677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.706677][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.706677][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.706677][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.706677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.706677][ T10] [ 3865.708648][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3865.708648][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.708648][ T10] ipv6_find_idev+0x102/0x170 [ 3865.708648][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.708648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.708648][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.708648][ T10] netlink_unicast+0x449/0x710 [ 3865.708648][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.708648][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.708648][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.708648][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.708648][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.708648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.708648][ T10] [ 3865.710168][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3865.710168][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.710168][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.710168][ T10] ipv6_find_idev+0x102/0x170 [ 3865.710168][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.710168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.710168][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.710168][ T10] netlink_unicast+0x449/0x710 [ 3865.710168][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.710168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.710168][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.710168][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.710168][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.710168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.710168][ T10] [ 3865.711865][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3865.712128][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3865.712128][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.712128][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.712128][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.712128][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.712128][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.712128][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.712128][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.712128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.712128][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.712128][ T10] netlink_unicast+0x449/0x710 [ 3865.712128][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.712128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.712128][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.712128][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.712128][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.712128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.712128][ T10] [ 3865.714158][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3865.714158][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.714158][ T10] ipv6_find_idev+0x102/0x170 [ 3865.714158][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.714158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.714158][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.714158][ T10] netlink_unicast+0x449/0x710 [ 3865.714158][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.714158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.714158][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.714158][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.714158][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.714158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.714158][ T10] [ 3865.715916][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3865.715916][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.715916][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.715916][ T10] ipv6_find_idev+0x102/0x170 [ 3865.715916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.715916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.715916][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.715916][ T10] netlink_unicast+0x449/0x710 [ 3865.715916][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.715916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.715916][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.715916][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.715916][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.715916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.715916][ T10] [ 3865.717802][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3865.718075][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3865.718075][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.718075][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.718075][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.718075][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.718075][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.718075][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.718075][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.718075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.718075][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.718075][ T10] netlink_unicast+0x449/0x710 [ 3865.718075][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.718075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.718075][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.718075][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.718075][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.718075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.718075][ T10] [ 3865.720287][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3865.720287][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.720287][ T10] ipv6_find_idev+0x102/0x170 [ 3865.720287][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.720287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.720287][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.720287][ T10] netlink_unicast+0x449/0x710 [ 3865.720287][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.720287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.720287][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.720287][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.720287][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.720287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.720287][ T10] [ 3865.722495][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3865.722495][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.722495][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.722495][ T10] ipv6_find_idev+0x102/0x170 [ 3865.722495][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.722495][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.722495][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.722495][ T10] netlink_unicast+0x449/0x710 [ 3865.722495][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.722495][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.722495][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.722495][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.722495][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.722495][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.722495][ T10] [ 3865.724384][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3865.724650][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3865.724650][ T10] netdev_get_by_index+0x5e/0x80 [ 3865.724650][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3865.724650][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3865.724650][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3865.724650][ T10] ipv6_add_addr+0x411/0x2000 [ 3865.724650][ T10] inet6_addr_add+0x30e/0xa40 [ 3865.724650][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3865.724650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.724650][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.724650][ T10] netlink_unicast+0x449/0x710 [ 3865.724650][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.724650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.724650][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.724650][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.724650][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.724650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.724650][ T10] [ 3865.726917][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3865.726917][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3865.726917][ T10] ipv6_find_idev+0x102/0x170 [ 3865.726917][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.726917][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.726917][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.726917][ T10] netlink_unicast+0x449/0x710 [ 3865.726917][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.726917][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.726917][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.726917][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.726917][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.726917][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.726917][ T10] [ 3865.728606][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3865.728606][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3865.728606][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3865.728606][ T10] ipv6_find_idev+0x102/0x170 [ 3865.728606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3865.728606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3865.728606][ T10] netlink_rcv_skb+0x130/0x360 [ 3865.728606][ T10] netlink_unicast+0x449/0x710 [ 3865.728606][ T10] netlink_sendmsg+0x723/0xbe0 [ 3865.728606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3865.728606][ T10] ___sys_sendmsg+0xee/0x170 [ 3865.728606][ T10] __sys_sendmsg+0xcd/0x170 [ 3865.728606][ T10] do_syscall_64+0xc6/0x1e0 [ 3865.728606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3865.728606][ T10] [ 3875.747775][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3875.748277][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3875.748277][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.748277][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.748277][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.748277][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.748277][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.748277][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.748277][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.748277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.748277][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.748277][ T10] netlink_unicast+0x449/0x710 [ 3875.748277][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.748277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.748277][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.748277][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.748277][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.748277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.748277][ T10] [ 3875.750281][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3875.750281][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.750281][ T10] ipv6_find_idev+0x102/0x170 [ 3875.750281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.750281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.750281][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.750281][ T10] netlink_unicast+0x449/0x710 [ 3875.750281][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.750281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.750281][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.750281][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.750281][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.750281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.750281][ T10] [ 3875.751817][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3875.751817][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.751817][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.751817][ T10] ipv6_find_idev+0x102/0x170 [ 3875.751817][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.751817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.751817][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.751817][ T10] netlink_unicast+0x449/0x710 [ 3875.751817][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.751817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.751817][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.751817][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.751817][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.751817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.751817][ T10] [ 3875.753509][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3875.753790][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3875.753790][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.753790][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.753790][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.753790][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.753790][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.753790][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.753790][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.753790][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.753790][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.753790][ T10] netlink_unicast+0x449/0x710 [ 3875.753790][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.753790][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.753790][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.753790][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.753790][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.753790][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.753790][ T10] [ 3875.755776][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3875.755776][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.755776][ T10] ipv6_find_idev+0x102/0x170 [ 3875.755776][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.755776][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.755776][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.755776][ T10] netlink_unicast+0x449/0x710 [ 3875.755776][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.755776][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.755776][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.755776][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.755776][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.755776][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.755776][ T10] [ 3875.757303][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3875.757303][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.757303][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.757303][ T10] ipv6_find_idev+0x102/0x170 [ 3875.757303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.757303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.757303][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.757303][ T10] netlink_unicast+0x449/0x710 [ 3875.757303][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.757303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.757303][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.757303][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.757303][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.757303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.757303][ T10] [ 3875.758969][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3875.759249][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3875.759249][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.759249][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.759249][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.759249][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.759249][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.759249][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.759249][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.759249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.759249][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.759249][ T10] netlink_unicast+0x449/0x710 [ 3875.759249][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.759249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.759249][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.759249][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.759249][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.759249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.759249][ T10] [ 3875.761216][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3875.761216][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.761216][ T10] ipv6_find_idev+0x102/0x170 [ 3875.761216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.761216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.761216][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.761216][ T10] netlink_unicast+0x449/0x710 [ 3875.761216][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.761216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.761216][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.761216][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.761216][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.761216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.761216][ T10] [ 3875.762746][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3875.762746][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.762746][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.762746][ T10] ipv6_find_idev+0x102/0x170 [ 3875.762746][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.762746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.762746][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.762746][ T10] netlink_unicast+0x449/0x710 [ 3875.762746][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.762746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.762746][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.762746][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.762746][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.762746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.762746][ T10] [ 3875.764411][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3875.764673][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3875.764673][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.764673][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.764673][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.764673][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.764673][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.764673][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.764673][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.764673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.764673][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.764673][ T10] netlink_unicast+0x449/0x710 [ 3875.764673][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.764673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.764673][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.764673][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.764673][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.764673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.764673][ T10] [ 3875.766652][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3875.766652][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.766652][ T10] ipv6_find_idev+0x102/0x170 [ 3875.766652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.766652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.766652][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.766652][ T10] netlink_unicast+0x449/0x710 [ 3875.766652][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.766652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.766652][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.766652][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.766652][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.766652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.766652][ T10] [ 3875.768176][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3875.768176][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.768176][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.768176][ T10] ipv6_find_idev+0x102/0x170 [ 3875.768176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.768176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.768176][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.768176][ T10] netlink_unicast+0x449/0x710 [ 3875.768176][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.768176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.768176][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.768176][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.768176][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.768176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.768176][ T10] [ 3875.770245][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3875.770544][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3875.770544][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.770544][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.770544][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.770544][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.770544][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.770544][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.770544][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.770544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.770544][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.770544][ T10] netlink_unicast+0x449/0x710 [ 3875.770544][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.770544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.770544][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.770544][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.770544][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.770544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.770544][ T10] [ 3875.772551][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3875.772551][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.772551][ T10] ipv6_find_idev+0x102/0x170 [ 3875.772551][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.772551][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.772551][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.772551][ T10] netlink_unicast+0x449/0x710 [ 3875.772551][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.772551][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.772551][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.772551][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.772551][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.772551][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.772551][ T10] [ 3875.774074][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3875.774074][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.774074][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.774074][ T10] ipv6_find_idev+0x102/0x170 [ 3875.774074][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.774074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.774074][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.774074][ T10] netlink_unicast+0x449/0x710 [ 3875.774074][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.774074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.774074][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.774074][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.774074][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.774074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.774074][ T10] [ 3875.775790][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3875.776050][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3875.776050][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.776050][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.776050][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.776050][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.776050][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.776050][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.776050][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.776050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.776050][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.776050][ T10] netlink_unicast+0x449/0x710 [ 3875.776050][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.776050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.776050][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.776050][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.776050][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.776050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.776050][ T10] [ 3875.778145][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3875.778145][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.778145][ T10] ipv6_find_idev+0x102/0x170 [ 3875.778145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.778145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.778145][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.778145][ T10] netlink_unicast+0x449/0x710 [ 3875.778145][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.778145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.778145][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.778145][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.778145][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.778145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.778145][ T10] [ 3875.779852][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3875.779852][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.779852][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.779852][ T10] ipv6_find_idev+0x102/0x170 [ 3875.779852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.779852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.779852][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.779852][ T10] netlink_unicast+0x449/0x710 [ 3875.779852][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.779852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.779852][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.779852][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.779852][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.779852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.779852][ T10] [ 3875.781865][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3875.782671][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3875.782671][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.782671][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.782671][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.782671][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.782671][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.782671][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.782671][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.782671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.782671][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.782671][ T10] netlink_unicast+0x449/0x710 [ 3875.782671][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.782671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.782671][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.782671][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.782671][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.782671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.782671][ T10] [ 3875.784824][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3875.784824][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.784824][ T10] ipv6_find_idev+0x102/0x170 [ 3875.784824][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.784824][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.784824][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.784824][ T10] netlink_unicast+0x449/0x710 [ 3875.784824][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.784824][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.784824][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.784824][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.784824][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.784824][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.784824][ T10] [ 3875.786530][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3875.786530][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.786530][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.786530][ T10] ipv6_find_idev+0x102/0x170 [ 3875.786530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.786530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.786530][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.786530][ T10] netlink_unicast+0x449/0x710 [ 3875.786530][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.786530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.786530][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.786530][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.786530][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.786530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.786530][ T10] [ 3875.788476][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3875.788800][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3875.788800][ T10] netdev_get_by_index+0x5e/0x80 [ 3875.788800][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3875.788800][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3875.788800][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3875.788800][ T10] ipv6_add_addr+0x411/0x2000 [ 3875.788800][ T10] inet6_addr_add+0x30e/0xa40 [ 3875.788800][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3875.788800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.788800][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.788800][ T10] netlink_unicast+0x449/0x710 [ 3875.788800][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.788800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.788800][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.788800][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.788800][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.788800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.788800][ T10] [ 3875.791008][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3875.791008][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3875.791008][ T10] ipv6_find_idev+0x102/0x170 [ 3875.791008][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.791008][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.791008][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.791008][ T10] netlink_unicast+0x449/0x710 [ 3875.791008][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.791008][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.791008][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.791008][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.791008][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.791008][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.791008][ T10] [ 3875.792717][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3875.792717][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3875.792717][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3875.792717][ T10] ipv6_find_idev+0x102/0x170 [ 3875.792717][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3875.792717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3875.792717][ T10] netlink_rcv_skb+0x130/0x360 [ 3875.792717][ T10] netlink_unicast+0x449/0x710 [ 3875.792717][ T10] netlink_sendmsg+0x723/0xbe0 [ 3875.792717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3875.792717][ T10] ___sys_sendmsg+0xee/0x170 [ 3875.792717][ T10] __sys_sendmsg+0xcd/0x170 [ 3875.792717][ T10] do_syscall_64+0xc6/0x1e0 [ 3875.792717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3875.792717][ T10] [ 3886.035758][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3886.036182][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3886.036182][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.036182][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.036182][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.036182][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.036182][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.036182][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.036182][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.036182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.036182][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.036182][ T10] netlink_unicast+0x449/0x710 [ 3886.036182][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.036182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.036182][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.036182][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.036182][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.036182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.036182][ T10] [ 3886.038174][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3886.038174][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.038174][ T10] ipv6_find_idev+0x102/0x170 [ 3886.038174][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.038174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.038174][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.038174][ T10] netlink_unicast+0x449/0x710 [ 3886.038174][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.038174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.038174][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.038174][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.038174][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.038174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.038174][ T10] [ 3886.039704][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3886.039704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.039704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.039704][ T10] ipv6_find_idev+0x102/0x170 [ 3886.039704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.039704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.039704][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.039704][ T10] netlink_unicast+0x449/0x710 [ 3886.039704][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.039704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.039704][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.039704][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.039704][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.039704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.039704][ T10] [ 3886.041383][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3886.041655][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3886.041655][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.041655][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.041655][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.041655][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.041655][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.041655][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.041655][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.041655][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.041655][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.041655][ T10] netlink_unicast+0x449/0x710 [ 3886.041655][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.041655][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.041655][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.041655][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.041655][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.041655][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.041655][ T10] [ 3886.043668][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3886.043668][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.043668][ T10] ipv6_find_idev+0x102/0x170 [ 3886.043668][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.043668][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.043668][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.043668][ T10] netlink_unicast+0x449/0x710 [ 3886.043668][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.043668][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.043668][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.043668][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.043668][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.043668][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.043668][ T10] [ 3886.045300][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3886.045300][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.045300][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.045300][ T10] ipv6_find_idev+0x102/0x170 [ 3886.045300][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.045300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.045300][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.045300][ T10] netlink_unicast+0x449/0x710 [ 3886.045300][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.045300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.045300][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.045300][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.045300][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.045300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.045300][ T10] [ 3886.046990][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3886.047257][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3886.047257][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.047257][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.047257][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.047257][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.047257][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.047257][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.047257][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.047257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.047257][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.047257][ T10] netlink_unicast+0x449/0x710 [ 3886.047257][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.047257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.047257][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.047257][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.047257][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.047257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.047257][ T10] [ 3886.049225][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3886.049225][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.049225][ T10] ipv6_find_idev+0x102/0x170 [ 3886.049225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.049225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.049225][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.049225][ T10] netlink_unicast+0x449/0x710 [ 3886.049225][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.049225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.049225][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.049225][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.049225][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.049225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.049225][ T10] [ 3886.050737][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3886.050737][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.050737][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.050737][ T10] ipv6_find_idev+0x102/0x170 [ 3886.050737][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.050737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.050737][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.050737][ T10] netlink_unicast+0x449/0x710 [ 3886.050737][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.050737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.050737][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.050737][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.050737][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.050737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.050737][ T10] [ 3886.052424][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3886.052685][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3886.052685][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.052685][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.052685][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.052685][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.052685][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.052685][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.052685][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.052685][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.052685][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.052685][ T10] netlink_unicast+0x449/0x710 [ 3886.052685][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.052685][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.052685][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.052685][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.052685][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.052685][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.052685][ T10] [ 3886.054650][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3886.054650][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.054650][ T10] ipv6_find_idev+0x102/0x170 [ 3886.054650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.054650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.054650][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.054650][ T10] netlink_unicast+0x449/0x710 [ 3886.054650][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.054650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.054650][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.054650][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.054650][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.054650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.054650][ T10] [ 3886.056159][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3886.056159][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.056159][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.056159][ T10] ipv6_find_idev+0x102/0x170 [ 3886.056159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.056159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.056159][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.056159][ T10] netlink_unicast+0x449/0x710 [ 3886.056159][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.056159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.056159][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.056159][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.056159][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.056159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.056159][ T10] [ 3886.057879][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3886.058140][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3886.058140][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.058140][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.058140][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.058140][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.058140][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.058140][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.058140][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.058140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.058140][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.058140][ T10] netlink_unicast+0x449/0x710 [ 3886.058140][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.058140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.058140][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.058140][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.058140][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.058140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.058140][ T10] [ 3886.060106][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3886.060106][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.060106][ T10] ipv6_find_idev+0x102/0x170 [ 3886.060106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.060106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.060106][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.060106][ T10] netlink_unicast+0x449/0x710 [ 3886.060106][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.060106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.060106][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.060106][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.060106][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.060106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.060106][ T10] [ 3886.061688][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3886.061688][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.061688][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.061688][ T10] ipv6_find_idev+0x102/0x170 [ 3886.061688][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.061688][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.061688][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.061688][ T10] netlink_unicast+0x449/0x710 [ 3886.061688][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.061688][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.061688][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.061688][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.061688][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.061688][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.061688][ T10] [ 3886.063633][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3886.063952][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3886.063952][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.063952][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.063952][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.063952][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.063952][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.063952][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.063952][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.063952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.063952][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.063952][ T10] netlink_unicast+0x449/0x710 [ 3886.063952][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.063952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.063952][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.063952][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.063952][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.063952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.063952][ T10] [ 3886.066092][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3886.066092][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.066092][ T10] ipv6_find_idev+0x102/0x170 [ 3886.066092][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.066092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.066092][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.066092][ T10] netlink_unicast+0x449/0x710 [ 3886.066092][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.066092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.066092][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.066092][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.066092][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.066092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.066092][ T10] [ 3886.067782][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3886.067782][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.067782][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.067782][ T10] ipv6_find_idev+0x102/0x170 [ 3886.067782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.067782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.067782][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.067782][ T10] netlink_unicast+0x449/0x710 [ 3886.067782][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.067782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.067782][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.067782][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.067782][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.067782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.067782][ T10] [ 3886.069670][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3886.069929][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3886.069929][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.069929][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.069929][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.069929][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.069929][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.069929][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.069929][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.069929][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.069929][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.069929][ T10] netlink_unicast+0x449/0x710 [ 3886.069929][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.069929][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.069929][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.069929][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.069929][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.069929][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.069929][ T10] [ 3886.072152][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3886.072152][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.072152][ T10] ipv6_find_idev+0x102/0x170 [ 3886.072152][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.072152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.072152][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.072152][ T10] netlink_unicast+0x449/0x710 [ 3886.072152][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.072152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.072152][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.072152][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.072152][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.072152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.072152][ T10] [ 3886.073916][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3886.073916][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.073916][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.073916][ T10] ipv6_find_idev+0x102/0x170 [ 3886.073916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.073916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.073916][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.073916][ T10] netlink_unicast+0x449/0x710 [ 3886.073916][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.073916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.073916][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.073916][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.073916][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.073916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.073916][ T10] [ 3886.075785][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3886.076051][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3886.076051][ T10] netdev_get_by_index+0x5e/0x80 [ 3886.076051][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3886.076051][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3886.076051][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3886.076051][ T10] ipv6_add_addr+0x411/0x2000 [ 3886.076051][ T10] inet6_addr_add+0x30e/0xa40 [ 3886.076051][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3886.076051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.076051][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.076051][ T10] netlink_unicast+0x449/0x710 [ 3886.076051][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.076051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.076051][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.076051][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.076051][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.076051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.076051][ T10] [ 3886.078248][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3886.078248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3886.078248][ T10] ipv6_find_idev+0x102/0x170 [ 3886.078248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.078248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.078248][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.078248][ T10] netlink_unicast+0x449/0x710 [ 3886.078248][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.078248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.078248][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.078248][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.078248][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.078248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.078248][ T10] [ 3886.079942][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3886.079942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3886.079942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3886.079942][ T10] ipv6_find_idev+0x102/0x170 [ 3886.079942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3886.079942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3886.079942][ T10] netlink_rcv_skb+0x130/0x360 [ 3886.079942][ T10] netlink_unicast+0x449/0x710 [ 3886.079942][ T10] netlink_sendmsg+0x723/0xbe0 [ 3886.079942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3886.079942][ T10] ___sys_sendmsg+0xee/0x170 [ 3886.079942][ T10] __sys_sendmsg+0xcd/0x170 [ 3886.079942][ T10] do_syscall_64+0xc6/0x1e0 [ 3886.079942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3886.079942][ T10] [ 3896.099728][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3896.100253][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3896.100253][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.100253][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.100253][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.100253][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.100253][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.100253][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.100253][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.100253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.100253][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.100253][ T10] netlink_unicast+0x449/0x710 [ 3896.100253][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.100253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.100253][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.100253][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.100253][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.100253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.100253][ T10] [ 3896.102277][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3896.102277][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.102277][ T10] ipv6_find_idev+0x102/0x170 [ 3896.102277][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.102277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.102277][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.102277][ T10] netlink_unicast+0x449/0x710 [ 3896.102277][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.102277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.102277][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.102277][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.102277][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.102277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.102277][ T10] [ 3896.103812][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3896.103812][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.103812][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.103812][ T10] ipv6_find_idev+0x102/0x170 [ 3896.103812][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.103812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.103812][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.103812][ T10] netlink_unicast+0x449/0x710 [ 3896.103812][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.103812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.103812][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.103812][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.103812][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.103812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.103812][ T10] [ 3896.105522][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3896.105807][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3896.105807][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.105807][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.105807][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.105807][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.105807][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.105807][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.105807][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.105807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.105807][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.105807][ T10] netlink_unicast+0x449/0x710 [ 3896.105807][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.105807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.105807][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.105807][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.105807][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.105807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.105807][ T10] [ 3896.107809][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3896.107809][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.107809][ T10] ipv6_find_idev+0x102/0x170 [ 3896.107809][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.107809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.107809][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.107809][ T10] netlink_unicast+0x449/0x710 [ 3896.107809][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.107809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.107809][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.107809][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.107809][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.107809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.107809][ T10] [ 3896.109343][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3896.109343][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.109343][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.109343][ T10] ipv6_find_idev+0x102/0x170 [ 3896.109343][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.109343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.109343][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.109343][ T10] netlink_unicast+0x449/0x710 [ 3896.109343][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.109343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.109343][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.109343][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.109343][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.109343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.109343][ T10] [ 3896.111041][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3896.111306][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3896.111306][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.111306][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.111306][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.111306][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.111306][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.111306][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.111306][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.111306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.111306][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.111306][ T10] netlink_unicast+0x449/0x710 [ 3896.111306][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.111306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.111306][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.111306][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.111306][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.111306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.111306][ T10] [ 3896.113310][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3896.113310][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.113310][ T10] ipv6_find_idev+0x102/0x170 [ 3896.113310][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.113310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.113310][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.113310][ T10] netlink_unicast+0x449/0x710 [ 3896.113310][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.113310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.113310][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.113310][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.113310][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.113310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.113310][ T10] [ 3896.114854][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3896.114854][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.114854][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.114854][ T10] ipv6_find_idev+0x102/0x170 [ 3896.114854][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.114854][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.114854][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.114854][ T10] netlink_unicast+0x449/0x710 [ 3896.114854][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.114854][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.114854][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.114854][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.114854][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.114854][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.114854][ T10] [ 3896.116537][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3896.117241][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3896.117241][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.117241][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.117241][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.117241][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.117241][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.117241][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.117241][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.117241][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.117241][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.117241][ T10] netlink_unicast+0x449/0x710 [ 3896.117241][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.117241][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.117241][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.117241][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.117241][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.117241][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.117241][ T10] [ 3896.119230][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3896.119230][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.119230][ T10] ipv6_find_idev+0x102/0x170 [ 3896.119230][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.119230][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.119230][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.119230][ T10] netlink_unicast+0x449/0x710 [ 3896.119230][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.119230][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.119230][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.119230][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.119230][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.119230][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.119230][ T10] [ 3896.120761][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3896.120761][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.120761][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.120761][ T10] ipv6_find_idev+0x102/0x170 [ 3896.120761][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.120761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.120761][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.120761][ T10] netlink_unicast+0x449/0x710 [ 3896.120761][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.120761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.120761][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.120761][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.120761][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.120761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.120761][ T10] [ 3896.122488][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3896.122813][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3896.122813][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.122813][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.122813][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.122813][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.122813][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.122813][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.122813][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.122813][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.122813][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.122813][ T10] netlink_unicast+0x449/0x710 [ 3896.122813][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.122813][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.122813][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.122813][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.122813][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.122813][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.122813][ T10] [ 3896.124807][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3896.124807][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.124807][ T10] ipv6_find_idev+0x102/0x170 [ 3896.124807][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.124807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.124807][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.124807][ T10] netlink_unicast+0x449/0x710 [ 3896.124807][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.124807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.124807][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.124807][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.124807][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.124807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.124807][ T10] [ 3896.126339][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3896.126339][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.126339][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.126339][ T10] ipv6_find_idev+0x102/0x170 [ 3896.126339][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.126339][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.126339][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.126339][ T10] netlink_unicast+0x449/0x710 [ 3896.126339][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.126339][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.126339][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.126339][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.126339][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.126339][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.126339][ T10] [ 3896.128060][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3896.128378][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3896.128378][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.128378][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.128378][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.128378][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.128378][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.128378][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.128378][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.128378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.128378][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.128378][ T10] netlink_unicast+0x449/0x710 [ 3896.128378][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.128378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.128378][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.128378][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.128378][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.128378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.128378][ T10] [ 3896.130875][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3896.130875][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.130875][ T10] ipv6_find_idev+0x102/0x170 [ 3896.130875][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.130875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.130875][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.130875][ T10] netlink_unicast+0x449/0x710 [ 3896.130875][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.130875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.130875][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.130875][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.130875][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.130875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.130875][ T10] [ 3896.132976][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3896.132976][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.132976][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.132976][ T10] ipv6_find_idev+0x102/0x170 [ 3896.132976][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.132976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.132976][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.132976][ T10] netlink_unicast+0x449/0x710 [ 3896.132976][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.132976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.132976][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.132976][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.132976][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.132976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.132976][ T10] [ 3896.135003][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3896.135316][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3896.135316][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.135316][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.135316][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.135316][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.135316][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.135316][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.135316][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.135316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.135316][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.135316][ T10] netlink_unicast+0x449/0x710 [ 3896.135316][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.135316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.135316][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.135316][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.135316][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.135316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.135316][ T10] [ 3896.137483][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3896.137483][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.137483][ T10] ipv6_find_idev+0x102/0x170 [ 3896.137483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.137483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.137483][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.137483][ T10] netlink_unicast+0x449/0x710 [ 3896.137483][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.137483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.137483][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.137483][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.137483][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.137483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.137483][ T10] [ 3896.139211][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3896.139211][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.139211][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.139211][ T10] ipv6_find_idev+0x102/0x170 [ 3896.139211][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.139211][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.139211][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.139211][ T10] netlink_unicast+0x449/0x710 [ 3896.139211][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.139211][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.139211][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.139211][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.139211][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.139211][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.139211][ T10] [ 3896.141140][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3896.141461][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3896.141461][ T10] netdev_get_by_index+0x5e/0x80 [ 3896.141461][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3896.141461][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3896.141461][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3896.141461][ T10] ipv6_add_addr+0x411/0x2000 [ 3896.141461][ T10] inet6_addr_add+0x30e/0xa40 [ 3896.141461][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3896.141461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.141461][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.141461][ T10] netlink_unicast+0x449/0x710 [ 3896.141461][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.141461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.141461][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.141461][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.141461][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.141461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.141461][ T10] [ 3896.143632][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3896.143632][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3896.143632][ T10] ipv6_find_idev+0x102/0x170 [ 3896.143632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.143632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.143632][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.143632][ T10] netlink_unicast+0x449/0x710 [ 3896.143632][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.143632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.143632][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.143632][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.143632][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.143632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.143632][ T10] [ 3896.145401][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3896.145401][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3896.145401][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3896.145401][ T10] ipv6_find_idev+0x102/0x170 [ 3896.145401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3896.145401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3896.145401][ T10] netlink_rcv_skb+0x130/0x360 [ 3896.145401][ T10] netlink_unicast+0x449/0x710 [ 3896.145401][ T10] netlink_sendmsg+0x723/0xbe0 [ 3896.145401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3896.145401][ T10] ___sys_sendmsg+0xee/0x170 [ 3896.145401][ T10] __sys_sendmsg+0xcd/0x170 [ 3896.145401][ T10] do_syscall_64+0xc6/0x1e0 [ 3896.145401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3896.145401][ T10] [ 3906.331849][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3906.332285][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3906.332285][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.332285][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.332285][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.332285][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.332285][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.332285][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.332285][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.332285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.332285][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.332285][ T10] netlink_unicast+0x449/0x710 [ 3906.332285][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.332285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.332285][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.332285][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.332285][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.332285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.332285][ T10] [ 3906.334277][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3906.334277][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.334277][ T10] ipv6_find_idev+0x102/0x170 [ 3906.334277][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.334277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.334277][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.334277][ T10] netlink_unicast+0x449/0x710 [ 3906.334277][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.334277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.334277][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.334277][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.334277][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.334277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.334277][ T10] [ 3906.335807][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3906.335807][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.335807][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.335807][ T10] ipv6_find_idev+0x102/0x170 [ 3906.335807][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.335807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.335807][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.335807][ T10] netlink_unicast+0x449/0x710 [ 3906.335807][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.335807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.335807][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.335807][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.335807][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.335807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.335807][ T10] [ 3906.337493][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3906.337778][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3906.337778][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.337778][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.337778][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.337778][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.337778][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.337778][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.337778][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.337778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.337778][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.337778][ T10] netlink_unicast+0x449/0x710 [ 3906.337778][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.337778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.337778][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.337778][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.337778][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.337778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.337778][ T10] [ 3906.339750][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3906.339750][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.339750][ T10] ipv6_find_idev+0x102/0x170 [ 3906.339750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.339750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.339750][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.339750][ T10] netlink_unicast+0x449/0x710 [ 3906.339750][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.339750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.339750][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.339750][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.339750][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.339750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.339750][ T10] [ 3906.341275][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3906.341275][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.341275][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.341275][ T10] ipv6_find_idev+0x102/0x170 [ 3906.341275][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.341275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.341275][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.341275][ T10] netlink_unicast+0x449/0x710 [ 3906.341275][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.341275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.341275][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.341275][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.341275][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.341275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.341275][ T10] [ 3906.343050][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3906.343326][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3906.343326][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.343326][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.343326][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.343326][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.343326][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.343326][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.343326][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.343326][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.343326][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.343326][ T10] netlink_unicast+0x449/0x710 [ 3906.343326][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.343326][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.343326][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.343326][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.343326][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.343326][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.343326][ T10] [ 3906.345299][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3906.345299][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.345299][ T10] ipv6_find_idev+0x102/0x170 [ 3906.345299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.345299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.345299][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.345299][ T10] netlink_unicast+0x449/0x710 [ 3906.345299][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.345299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.345299][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.345299][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.345299][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.345299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.345299][ T10] [ 3906.346826][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3906.346826][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.346826][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.346826][ T10] ipv6_find_idev+0x102/0x170 [ 3906.346826][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.346826][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.346826][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.346826][ T10] netlink_unicast+0x449/0x710 [ 3906.346826][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.346826][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.346826][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.346826][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.346826][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.346826][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.346826][ T10] [ 3906.348852][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3906.349111][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3906.349111][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.349111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.349111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.349111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.349111][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.349111][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.349111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.349111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.349111][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.349111][ T10] netlink_unicast+0x449/0x710 [ 3906.349111][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.349111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.349111][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.349111][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.349111][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.349111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.349111][ T10] [ 3906.351083][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3906.351083][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.351083][ T10] ipv6_find_idev+0x102/0x170 [ 3906.351083][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.351083][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.351083][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.351083][ T10] netlink_unicast+0x449/0x710 [ 3906.351083][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.351083][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.351083][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.351083][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.351083][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.351083][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.351083][ T10] [ 3906.352602][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3906.352602][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.352602][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.352602][ T10] ipv6_find_idev+0x102/0x170 [ 3906.352602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.352602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.352602][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.352602][ T10] netlink_unicast+0x449/0x710 [ 3906.352602][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.352602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.352602][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.352602][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.352602][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.352602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.352602][ T10] [ 3906.354689][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3906.354953][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3906.354953][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.354953][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.354953][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.354953][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.354953][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.354953][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.354953][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.354953][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.354953][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.354953][ T10] netlink_unicast+0x449/0x710 [ 3906.354953][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.354953][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.354953][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.354953][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.354953][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.354953][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.354953][ T10] [ 3906.356920][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3906.356920][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.356920][ T10] ipv6_find_idev+0x102/0x170 [ 3906.356920][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.356920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.356920][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.356920][ T10] netlink_unicast+0x449/0x710 [ 3906.356920][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.356920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.356920][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.356920][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.356920][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.356920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.356920][ T10] [ 3906.358977][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3906.358977][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.358977][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.358977][ T10] ipv6_find_idev+0x102/0x170 [ 3906.358977][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.358977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.358977][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.358977][ T10] netlink_unicast+0x449/0x710 [ 3906.358977][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.358977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.358977][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.358977][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.358977][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.358977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.358977][ T10] [ 3906.360692][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3906.360958][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3906.360958][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.360958][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.360958][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.360958][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.360958][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.360958][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.360958][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.360958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.360958][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.360958][ T10] netlink_unicast+0x449/0x710 [ 3906.360958][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.360958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.360958][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.360958][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.360958][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.360958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.360958][ T10] [ 3906.363171][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3906.363171][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.363171][ T10] ipv6_find_idev+0x102/0x170 [ 3906.363171][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.363171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.363171][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.363171][ T10] netlink_unicast+0x449/0x710 [ 3906.363171][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.363171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.363171][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.363171][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.363171][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.363171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.363171][ T10] [ 3906.364820][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3906.364820][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.364820][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.364820][ T10] ipv6_find_idev+0x102/0x170 [ 3906.364820][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.364820][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.364820][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.364820][ T10] netlink_unicast+0x449/0x710 [ 3906.364820][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.364820][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.364820][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.364820][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.364820][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.364820][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.364820][ T10] [ 3906.366837][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3906.367100][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3906.367100][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.367100][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.367100][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.367100][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.367100][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.367100][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.367100][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.367100][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.367100][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.367100][ T10] netlink_unicast+0x449/0x710 [ 3906.367100][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.367100][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.367100][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.367100][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.367100][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.367100][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.367100][ T10] [ 3906.369193][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3906.369193][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.369193][ T10] ipv6_find_idev+0x102/0x170 [ 3906.369193][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.369193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.369193][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.369193][ T10] netlink_unicast+0x449/0x710 [ 3906.369193][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.369193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.369193][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.369193][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.369193][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.369193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.369193][ T10] [ 3906.370905][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3906.370905][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.370905][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.370905][ T10] ipv6_find_idev+0x102/0x170 [ 3906.370905][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.370905][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.370905][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.370905][ T10] netlink_unicast+0x449/0x710 [ 3906.370905][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.370905][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.370905][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.370905][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.370905][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.370905][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.370905][ T10] [ 3906.372869][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3906.373513][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3906.373513][ T10] netdev_get_by_index+0x5e/0x80 [ 3906.373513][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3906.373513][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3906.373513][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3906.373513][ T10] ipv6_add_addr+0x411/0x2000 [ 3906.373513][ T10] inet6_addr_add+0x30e/0xa40 [ 3906.373513][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3906.373513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.373513][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.373513][ T10] netlink_unicast+0x449/0x710 [ 3906.373513][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.373513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.373513][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.373513][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.373513][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.373513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.373513][ T10] [ 3906.375655][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3906.375655][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3906.375655][ T10] ipv6_find_idev+0x102/0x170 [ 3906.375655][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.375655][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.375655][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.375655][ T10] netlink_unicast+0x449/0x710 [ 3906.375655][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.375655][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.375655][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.375655][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.375655][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.375655][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.375655][ T10] [ 3906.377410][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3906.377410][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3906.377410][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3906.377410][ T10] ipv6_find_idev+0x102/0x170 [ 3906.377410][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3906.377410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3906.377410][ T10] netlink_rcv_skb+0x130/0x360 [ 3906.377410][ T10] netlink_unicast+0x449/0x710 [ 3906.377410][ T10] netlink_sendmsg+0x723/0xbe0 [ 3906.377410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3906.377410][ T10] ___sys_sendmsg+0xee/0x170 [ 3906.377410][ T10] __sys_sendmsg+0xcd/0x170 [ 3906.377410][ T10] do_syscall_64+0xc6/0x1e0 [ 3906.377410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3906.377410][ T10] [ 3916.619849][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3916.620351][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3916.620351][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.620351][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.620351][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.620351][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.620351][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.620351][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.620351][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.620351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.620351][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.620351][ T10] netlink_unicast+0x449/0x710 [ 3916.620351][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.620351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.620351][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.620351][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.620351][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.620351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.620351][ T10] [ 3916.622355][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3916.622355][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.622355][ T10] ipv6_find_idev+0x102/0x170 [ 3916.622355][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.622355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.622355][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.622355][ T10] netlink_unicast+0x449/0x710 [ 3916.622355][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.622355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.622355][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.622355][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.622355][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.622355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.622355][ T10] [ 3916.623877][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3916.623877][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.623877][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.623877][ T10] ipv6_find_idev+0x102/0x170 [ 3916.623877][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.623877][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.623877][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.623877][ T10] netlink_unicast+0x449/0x710 [ 3916.623877][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.623877][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.623877][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.623877][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.623877][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.623877][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.623877][ T10] [ 3916.625556][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3916.625840][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3916.625840][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.625840][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.625840][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.625840][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.625840][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.625840][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.625840][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.625840][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.625840][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.625840][ T10] netlink_unicast+0x449/0x710 [ 3916.625840][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.625840][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.625840][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.625840][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.625840][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.625840][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.625840][ T10] [ 3916.627848][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3916.627848][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.627848][ T10] ipv6_find_idev+0x102/0x170 [ 3916.627848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.627848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.627848][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.627848][ T10] netlink_unicast+0x449/0x710 [ 3916.627848][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.627848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.627848][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.627848][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.627848][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.627848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.627848][ T10] [ 3916.629371][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3916.629371][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.629371][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.629371][ T10] ipv6_find_idev+0x102/0x170 [ 3916.629371][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.629371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.629371][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.629371][ T10] netlink_unicast+0x449/0x710 [ 3916.629371][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.629371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.629371][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.629371][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.629371][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.629371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.629371][ T10] [ 3916.631039][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3916.631305][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3916.631305][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.631305][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.631305][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.631305][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.631305][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.631305][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.631305][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.631305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.631305][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.631305][ T10] netlink_unicast+0x449/0x710 [ 3916.631305][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.631305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.631305][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.631305][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.631305][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.631305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.631305][ T10] [ 3916.633278][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3916.633278][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.633278][ T10] ipv6_find_idev+0x102/0x170 [ 3916.633278][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.633278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.633278][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.633278][ T10] netlink_unicast+0x449/0x710 [ 3916.633278][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.633278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.633278][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.633278][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.633278][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.633278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.633278][ T10] [ 3916.634798][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3916.634798][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.634798][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.634798][ T10] ipv6_find_idev+0x102/0x170 [ 3916.634798][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.634798][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.634798][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.634798][ T10] netlink_unicast+0x449/0x710 [ 3916.634798][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.634798][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.634798][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.634798][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.634798][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.634798][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.634798][ T10] [ 3916.636459][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3916.637161][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3916.637161][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.637161][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.637161][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.637161][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.637161][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.637161][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.637161][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.637161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.637161][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.637161][ T10] netlink_unicast+0x449/0x710 [ 3916.637161][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.637161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.637161][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.637161][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.637161][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.637161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.637161][ T10] [ 3916.639134][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3916.639134][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.639134][ T10] ipv6_find_idev+0x102/0x170 [ 3916.639134][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.639134][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.639134][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.639134][ T10] netlink_unicast+0x449/0x710 [ 3916.639134][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.639134][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.639134][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.639134][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.639134][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.639134][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.639134][ T10] [ 3916.640647][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3916.640647][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.640647][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.640647][ T10] ipv6_find_idev+0x102/0x170 [ 3916.640647][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.640647][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.640647][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.640647][ T10] netlink_unicast+0x449/0x710 [ 3916.640647][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.640647][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.640647][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.640647][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.640647][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.640647][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.640647][ T10] [ 3916.642350][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3916.642623][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3916.642623][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.642623][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.642623][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.642623][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.642623][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.642623][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.642623][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.642623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.642623][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.642623][ T10] netlink_unicast+0x449/0x710 [ 3916.642623][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.642623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.642623][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.642623][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.642623][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.642623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.642623][ T10] [ 3916.644600][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3916.644600][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.644600][ T10] ipv6_find_idev+0x102/0x170 [ 3916.644600][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.644600][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.644600][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.644600][ T10] netlink_unicast+0x449/0x710 [ 3916.644600][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.644600][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.644600][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.644600][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.644600][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.644600][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.644600][ T10] [ 3916.646118][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3916.646118][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.646118][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.646118][ T10] ipv6_find_idev+0x102/0x170 [ 3916.646118][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.646118][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.646118][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.646118][ T10] netlink_unicast+0x449/0x710 [ 3916.646118][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.646118][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.646118][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.646118][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.646118][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.646118][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.646118][ T10] [ 3916.647816][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3916.648082][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3916.648082][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.648082][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.648082][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.648082][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.648082][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.648082][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.648082][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.648082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.648082][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.648082][ T10] netlink_unicast+0x449/0x710 [ 3916.648082][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.648082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.648082][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.648082][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.648082][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.648082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.648082][ T10] [ 3916.650176][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3916.650176][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.650176][ T10] ipv6_find_idev+0x102/0x170 [ 3916.650176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.650176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.650176][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.650176][ T10] netlink_unicast+0x449/0x710 [ 3916.650176][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.650176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.650176][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.650176][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.650176][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.650176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.650176][ T10] [ 3916.651866][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3916.651866][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.651866][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.651866][ T10] ipv6_find_idev+0x102/0x170 [ 3916.651866][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.651866][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.651866][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.651866][ T10] netlink_unicast+0x449/0x710 [ 3916.651866][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.651866][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.651866][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.651866][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.651866][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.651866][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.651866][ T10] [ 3916.653811][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3916.654076][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3916.654076][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.654076][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.654076][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.654076][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.654076][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.654076][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.654076][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.654076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.654076][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.654076][ T10] netlink_unicast+0x449/0x710 [ 3916.654076][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.654076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.654076][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.654076][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.654076][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.654076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.654076][ T10] [ 3916.656284][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3916.656284][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.656284][ T10] ipv6_find_idev+0x102/0x170 [ 3916.656284][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.656284][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.656284][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.656284][ T10] netlink_unicast+0x449/0x710 [ 3916.656284][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.656284][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.656284][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.656284][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.656284][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.656284][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.656284][ T10] [ 3916.657998][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3916.657998][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.657998][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.657998][ T10] ipv6_find_idev+0x102/0x170 [ 3916.657998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.657998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.657998][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.657998][ T10] netlink_unicast+0x449/0x710 [ 3916.657998][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.657998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.657998][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.657998][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.657998][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.657998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.657998][ T10] [ 3916.659877][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3916.660191][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3916.660191][ T10] netdev_get_by_index+0x5e/0x80 [ 3916.660191][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3916.660191][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3916.660191][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3916.660191][ T10] ipv6_add_addr+0x411/0x2000 [ 3916.660191][ T10] inet6_addr_add+0x30e/0xa40 [ 3916.660191][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3916.660191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.660191][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.660191][ T10] netlink_unicast+0x449/0x710 [ 3916.660191][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.660191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.660191][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.660191][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.660191][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.660191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.660191][ T10] [ 3916.662341][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3916.662341][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3916.662341][ T10] ipv6_find_idev+0x102/0x170 [ 3916.662341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.662341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.662341][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.662341][ T10] netlink_unicast+0x449/0x710 [ 3916.662341][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.662341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.662341][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.662341][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.662341][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.662341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.662341][ T10] [ 3916.664108][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3916.664108][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3916.664108][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3916.664108][ T10] ipv6_find_idev+0x102/0x170 [ 3916.664108][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3916.664108][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3916.664108][ T10] netlink_rcv_skb+0x130/0x360 [ 3916.664108][ T10] netlink_unicast+0x449/0x710 [ 3916.664108][ T10] netlink_sendmsg+0x723/0xbe0 [ 3916.664108][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3916.664108][ T10] ___sys_sendmsg+0xee/0x170 [ 3916.664108][ T10] __sys_sendmsg+0xcd/0x170 [ 3916.664108][ T10] do_syscall_64+0xc6/0x1e0 [ 3916.664108][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3916.664108][ T10] [ 3926.691713][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3926.692217][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3926.692217][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.692217][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.692217][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.692217][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.692217][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.692217][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.692217][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.692217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.692217][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.692217][ T10] netlink_unicast+0x449/0x710 [ 3926.692217][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.692217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.692217][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.692217][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.692217][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.692217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.692217][ T10] [ 3926.694212][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3926.694212][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.694212][ T10] ipv6_find_idev+0x102/0x170 [ 3926.694212][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.694212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.694212][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.694212][ T10] netlink_unicast+0x449/0x710 [ 3926.694212][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.694212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.694212][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.694212][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.694212][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.694212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.694212][ T10] [ 3926.695740][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3926.695740][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.695740][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.695740][ T10] ipv6_find_idev+0x102/0x170 [ 3926.695740][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.695740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.695740][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.695740][ T10] netlink_unicast+0x449/0x710 [ 3926.695740][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.695740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.695740][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.695740][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.695740][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.695740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.695740][ T10] [ 3926.697410][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3926.697681][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3926.697681][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.697681][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.697681][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.697681][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.697681][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.697681][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.697681][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.697681][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.697681][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.697681][ T10] netlink_unicast+0x449/0x710 [ 3926.697681][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.697681][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.697681][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.697681][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.697681][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.697681][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.697681][ T10] [ 3926.699652][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3926.699652][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.699652][ T10] ipv6_find_idev+0x102/0x170 [ 3926.699652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.699652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.699652][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.699652][ T10] netlink_unicast+0x449/0x710 [ 3926.699652][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.699652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.699652][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.699652][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.699652][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.699652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.699652][ T10] [ 3926.701173][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3926.701173][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.701173][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.701173][ T10] ipv6_find_idev+0x102/0x170 [ 3926.701173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.701173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.701173][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.701173][ T10] netlink_unicast+0x449/0x710 [ 3926.701173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.701173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.701173][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.701173][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.701173][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.701173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.701173][ T10] [ 3926.702859][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3926.703123][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3926.703123][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.703123][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.703123][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.703123][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.703123][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.703123][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.703123][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.703123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.703123][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.703123][ T10] netlink_unicast+0x449/0x710 [ 3926.703123][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.703123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.703123][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.703123][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.703123][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.703123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.703123][ T10] [ 3926.705088][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3926.705088][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.705088][ T10] ipv6_find_idev+0x102/0x170 [ 3926.705088][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.705088][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.705088][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.705088][ T10] netlink_unicast+0x449/0x710 [ 3926.705088][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.705088][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.705088][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.705088][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.705088][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.705088][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.705088][ T10] [ 3926.706621][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3926.706621][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.706621][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.706621][ T10] ipv6_find_idev+0x102/0x170 [ 3926.706621][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.706621][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.706621][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.706621][ T10] netlink_unicast+0x449/0x710 [ 3926.706621][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.706621][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.706621][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.706621][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.706621][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.706621][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.706621][ T10] [ 3926.708274][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3926.708545][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3926.708545][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.708545][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.708545][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.708545][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.708545][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.708545][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.708545][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.708545][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.708545][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.708545][ T10] netlink_unicast+0x449/0x710 [ 3926.708545][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.708545][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.708545][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.708545][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.708545][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.708545][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.708545][ T10] [ 3926.710522][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3926.710522][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.710522][ T10] ipv6_find_idev+0x102/0x170 [ 3926.710522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.710522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.710522][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.710522][ T10] netlink_unicast+0x449/0x710 [ 3926.710522][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.710522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.710522][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.710522][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.710522][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.710522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.710522][ T10] [ 3926.712050][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3926.712050][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.712050][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.712050][ T10] ipv6_find_idev+0x102/0x170 [ 3926.712050][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.712050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.712050][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.712050][ T10] netlink_unicast+0x449/0x710 [ 3926.712050][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.712050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.712050][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.712050][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.712050][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.712050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.712050][ T10] [ 3926.714119][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3926.714379][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3926.714379][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.714379][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.714379][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.714379][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.714379][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.714379][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.714379][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.714379][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.714379][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.714379][ T10] netlink_unicast+0x449/0x710 [ 3926.714379][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.714379][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.714379][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.714379][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.714379][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.714379][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.714379][ T10] [ 3926.716348][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3926.716348][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.716348][ T10] ipv6_find_idev+0x102/0x170 [ 3926.716348][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.716348][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.716348][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.716348][ T10] netlink_unicast+0x449/0x710 [ 3926.716348][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.716348][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.716348][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.716348][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.716348][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.716348][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.716348][ T10] [ 3926.717872][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3926.717872][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.717872][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.717872][ T10] ipv6_find_idev+0x102/0x170 [ 3926.717872][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.717872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.717872][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.717872][ T10] netlink_unicast+0x449/0x710 [ 3926.717872][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.717872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.717872][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.717872][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.717872][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.717872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.717872][ T10] [ 3926.719579][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3926.719897][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3926.719897][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.719897][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.719897][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.719897][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.719897][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.719897][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.719897][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.719897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.719897][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.719897][ T10] netlink_unicast+0x449/0x710 [ 3926.719897][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.719897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.719897][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.719897][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.719897][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.719897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.719897][ T10] [ 3926.721933][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3926.721933][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.721933][ T10] ipv6_find_idev+0x102/0x170 [ 3926.721933][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.721933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.721933][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.721933][ T10] netlink_unicast+0x449/0x710 [ 3926.721933][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.721933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.721933][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.721933][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.721933][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.721933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.721933][ T10] [ 3926.723509][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3926.723509][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.723509][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.723509][ T10] ipv6_find_idev+0x102/0x170 [ 3926.723509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.723509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.723509][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.723509][ T10] netlink_unicast+0x449/0x710 [ 3926.723509][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.723509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.723509][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.723509][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.723509][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.723509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.723509][ T10] [ 3926.725327][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3926.725598][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3926.725598][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.725598][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.725598][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.725598][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.725598][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.725598][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.725598][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.725598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.725598][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.725598][ T10] netlink_unicast+0x449/0x710 [ 3926.725598][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.725598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.725598][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.725598][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.725598][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.725598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.725598][ T10] [ 3926.727693][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3926.727693][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.727693][ T10] ipv6_find_idev+0x102/0x170 [ 3926.727693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.727693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.727693][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.727693][ T10] netlink_unicast+0x449/0x710 [ 3926.727693][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.727693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.727693][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.727693][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.727693][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.727693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.727693][ T10] [ 3926.729328][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3926.729328][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.729328][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.729328][ T10] ipv6_find_idev+0x102/0x170 [ 3926.729328][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.729328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.729328][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.729328][ T10] netlink_unicast+0x449/0x710 [ 3926.729328][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.729328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.729328][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.729328][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.729328][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.729328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.729328][ T10] [ 3926.731096][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3926.731358][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3926.731358][ T10] netdev_get_by_index+0x5e/0x80 [ 3926.731358][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3926.731358][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3926.731358][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3926.731358][ T10] ipv6_add_addr+0x411/0x2000 [ 3926.731358][ T10] inet6_addr_add+0x30e/0xa40 [ 3926.731358][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3926.731358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.731358][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.731358][ T10] netlink_unicast+0x449/0x710 [ 3926.731358][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.731358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.731358][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.731358][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.731358][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.731358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.731358][ T10] [ 3926.733985][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3926.733985][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3926.733985][ T10] ipv6_find_idev+0x102/0x170 [ 3926.733985][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.733985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.733985][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.733985][ T10] netlink_unicast+0x449/0x710 [ 3926.733985][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.733985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.733985][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.733985][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.733985][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.733985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.733985][ T10] [ 3926.735634][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3926.735634][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3926.735634][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3926.735634][ T10] ipv6_find_idev+0x102/0x170 [ 3926.735634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3926.735634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3926.735634][ T10] netlink_rcv_skb+0x130/0x360 [ 3926.735634][ T10] netlink_unicast+0x449/0x710 [ 3926.735634][ T10] netlink_sendmsg+0x723/0xbe0 [ 3926.735634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3926.735634][ T10] ___sys_sendmsg+0xee/0x170 [ 3926.735634][ T10] __sys_sendmsg+0xcd/0x170 [ 3926.735634][ T10] do_syscall_64+0xc6/0x1e0 [ 3926.735634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3926.735634][ T10] [ 3933.475844][ T42] INFO: task modprobe:14797 blocked for more than 860 seconds. [ 3933.476195][ T42] Not tainted 6.8.0-virtme #1 [ 3933.476319][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3933.476518][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 3933.476794][ T42] Call Trace: [ 3933.476895][ T42] [ 3933.476966][ T42] __schedule+0x705/0x1ac0 [ 3933.477106][ T42] ? __pfx___schedule+0x10/0x10 [ 3933.477230][ T42] ? schedule+0x1a5/0x210 [ 3933.477326][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3933.477456][ T42] ? mark_lock+0x38/0x3e0 [ 3933.477551][ T42] ? do_raw_spin_lock+0x131/0x270 [ 3933.477692][ T42] ? schedule+0x1a5/0x210 [ 3933.477790][ T42] schedule+0xdf/0x210 [ 3933.477888][ T42] schedule_preempt_disabled+0x15/0x30 [ 3933.478011][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 3933.478142][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 3933.478299][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 3933.478429][ T42] ? lock_acquire+0x1c1/0x220 [ 3933.478550][ T42] ? register_pernet_subsys+0x1a/0x50 [ 3933.478694][ T42] down_write+0x1c9/0x200 [ 3933.478791][ T42] ? __pfx_down_write+0x10/0x10 [ 3933.478914][ T42] ? __lock_release+0x103/0x460 [ 3933.479036][ T42] ? __create_object+0x5e/0xb0 [ 3933.479166][ T42] ? __pfx___lock_release+0x10/0x10 [ 3933.479292][ T42] register_pernet_subsys+0x1a/0x50 [ 3933.479419][ T42] tcf_register_action+0xa3/0x600 [ 3933.479547][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 3933.479715][ T42] do_one_initcall+0xc8/0x3f0 [ 3933.479841][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 3933.479968][ T42] ? __create_object+0x5e/0xb0 [ 3933.480093][ T42] ? kasan_unpoison+0x27/0x60 [ 3933.480228][ T42] do_init_module+0x233/0x740 [ 3933.480365][ T42] load_module+0x16b5/0x2350 [ 3933.480501][ T42] ? __pfx_load_module+0x10/0x10 [ 3933.480625][ T42] ? kernel_read_file+0x3d2/0x520 [ 3933.480778][ T42] ? kernel_read_file+0x300/0x520 [ 3933.480906][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 3933.481039][ T42] ? init_module_from_file+0xd2/0x130 [ 3933.481164][ T42] init_module_from_file+0xd2/0x130 [ 3933.481291][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 3933.481443][ T42] ? __lock_release+0x103/0x460 [ 3933.481567][ T42] ? idempotent_init_module+0x32a/0x620 [ 3933.481708][ T42] ? idempotent_init_module+0x32a/0x620 [ 3933.481840][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 3933.481974][ T42] idempotent_init_module+0x342/0x620 [ 3933.482102][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 3933.482274][ T42] __x64_sys_finit_module+0xbe/0x130 [ 3933.482398][ T42] do_syscall_64+0xc6/0x1e0 [ 3933.482524][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3933.482686][ T42] RIP: 0033:0x7f188f3c6e5d [ 3933.482816][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3933.483000][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 3933.483182][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 3933.483364][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 3933.483547][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 3933.483739][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 3933.483932][ T42] [ 3933.484026][ T42] [ 3933.484026][ T42] Showing all locks held in the system: [ 3933.484200][ T42] 3 locks held by kworker/u16:0/10: [ 3933.484325][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3933.484575][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3933.484811][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 3933.485040][ T42] 1 lock held by khungtaskd/42: [ 3933.485165][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 3933.485391][ T42] 2 locks held by kworker/u20:2/10034: [ 3933.485508][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 3933.485760][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 3933.486042][ T42] 1 lock held by modprobe/14797: [ 3933.486159][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 3933.486404][ T42] [ 3933.486465][ T42] ============================================= [ 3933.486465][ T42] [ 3936.747760][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3936.748288][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3936.748288][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.748288][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.748288][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.748288][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.748288][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.748288][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.748288][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.748288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.748288][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.748288][ T10] netlink_unicast+0x449/0x710 [ 3936.748288][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.748288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.748288][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.748288][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.748288][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.748288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.748288][ T10] [ 3936.750298][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3936.750298][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.750298][ T10] ipv6_find_idev+0x102/0x170 [ 3936.750298][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.750298][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.750298][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.750298][ T10] netlink_unicast+0x449/0x710 [ 3936.750298][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.750298][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.750298][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.750298][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.750298][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.750298][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.750298][ T10] [ 3936.751842][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3936.751842][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.751842][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.751842][ T10] ipv6_find_idev+0x102/0x170 [ 3936.751842][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.751842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.751842][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.751842][ T10] netlink_unicast+0x449/0x710 [ 3936.751842][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.751842][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.751842][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.751842][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.751842][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.751842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.751842][ T10] [ 3936.753527][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3936.753817][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3936.753817][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.753817][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.753817][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.753817][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.753817][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.753817][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.753817][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.753817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.753817][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.753817][ T10] netlink_unicast+0x449/0x710 [ 3936.753817][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.753817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.753817][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.753817][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.753817][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.753817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.753817][ T10] [ 3936.755797][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3936.755797][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.755797][ T10] ipv6_find_idev+0x102/0x170 [ 3936.755797][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.755797][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.755797][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.755797][ T10] netlink_unicast+0x449/0x710 [ 3936.755797][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.755797][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.755797][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.755797][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.755797][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.755797][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.755797][ T10] [ 3936.757329][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3936.757329][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.757329][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.757329][ T10] ipv6_find_idev+0x102/0x170 [ 3936.757329][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.757329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.757329][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.757329][ T10] netlink_unicast+0x449/0x710 [ 3936.757329][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.757329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.757329][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.757329][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.757329][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.757329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.757329][ T10] [ 3936.758997][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3936.759257][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3936.759257][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.759257][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.759257][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.759257][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.759257][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.759257][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.759257][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.759257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.759257][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.759257][ T10] netlink_unicast+0x449/0x710 [ 3936.759257][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.759257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.759257][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.759257][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.759257][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.759257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.759257][ T10] [ 3936.761233][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3936.761233][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.761233][ T10] ipv6_find_idev+0x102/0x170 [ 3936.761233][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.761233][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.761233][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.761233][ T10] netlink_unicast+0x449/0x710 [ 3936.761233][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.761233][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.761233][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.761233][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.761233][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.761233][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.761233][ T10] [ 3936.762791][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3936.762791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.762791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.762791][ T10] ipv6_find_idev+0x102/0x170 [ 3936.762791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.762791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.762791][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.762791][ T10] netlink_unicast+0x449/0x710 [ 3936.762791][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.762791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.762791][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.762791][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.762791][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.762791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.762791][ T10] [ 3936.764447][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3936.765152][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3936.765152][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.765152][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.765152][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.765152][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.765152][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.765152][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.765152][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.765152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.765152][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.765152][ T10] netlink_unicast+0x449/0x710 [ 3936.765152][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.765152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.765152][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.765152][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.765152][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.765152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.765152][ T10] [ 3936.767130][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3936.767130][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.767130][ T10] ipv6_find_idev+0x102/0x170 [ 3936.767130][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.767130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.767130][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.767130][ T10] netlink_unicast+0x449/0x710 [ 3936.767130][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.767130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.767130][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.767130][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.767130][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.767130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.767130][ T10] [ 3936.768643][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3936.768643][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.768643][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.768643][ T10] ipv6_find_idev+0x102/0x170 [ 3936.768643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.768643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.768643][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.768643][ T10] netlink_unicast+0x449/0x710 [ 3936.768643][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.768643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.768643][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.768643][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.768643][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.768643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.768643][ T10] [ 3936.770347][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3936.770613][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3936.770613][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.770613][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.770613][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.770613][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.770613][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.770613][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.770613][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.770613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.770613][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.770613][ T10] netlink_unicast+0x449/0x710 [ 3936.770613][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.770613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.770613][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.770613][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.770613][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.770613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.770613][ T10] [ 3936.772607][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3936.772607][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.772607][ T10] ipv6_find_idev+0x102/0x170 [ 3936.772607][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.772607][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.772607][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.772607][ T10] netlink_unicast+0x449/0x710 [ 3936.772607][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.772607][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.772607][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.772607][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.772607][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.772607][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.772607][ T10] [ 3936.774129][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3936.774129][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.774129][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.774129][ T10] ipv6_find_idev+0x102/0x170 [ 3936.774129][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.774129][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.774129][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.774129][ T10] netlink_unicast+0x449/0x710 [ 3936.774129][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.774129][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.774129][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.774129][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.774129][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.774129][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.774129][ T10] [ 3936.775836][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3936.776096][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3936.776096][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.776096][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.776096][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.776096][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.776096][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.776096][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.776096][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.776096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.776096][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.776096][ T10] netlink_unicast+0x449/0x710 [ 3936.776096][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.776096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.776096][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.776096][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.776096][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.776096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.776096][ T10] [ 3936.778133][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3936.778133][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.778133][ T10] ipv6_find_idev+0x102/0x170 [ 3936.778133][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.778133][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.778133][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.778133][ T10] netlink_unicast+0x449/0x710 [ 3936.778133][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.778133][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.778133][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.778133][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.778133][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.778133][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.778133][ T10] [ 3936.779838][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3936.779838][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.779838][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.779838][ T10] ipv6_find_idev+0x102/0x170 [ 3936.779838][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.779838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.779838][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.779838][ T10] netlink_unicast+0x449/0x710 [ 3936.779838][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.779838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.779838][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.779838][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.779838][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.779838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.779838][ T10] [ 3936.781716][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3936.781988][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3936.781988][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.781988][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.781988][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.781988][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.781988][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.781988][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.781988][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.781988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.781988][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.781988][ T10] netlink_unicast+0x449/0x710 [ 3936.781988][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.781988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.781988][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.781988][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.781988][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.781988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.781988][ T10] [ 3936.784207][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3936.784207][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.784207][ T10] ipv6_find_idev+0x102/0x170 [ 3936.784207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.784207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.784207][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.784207][ T10] netlink_unicast+0x449/0x710 [ 3936.784207][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.784207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.784207][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.784207][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.784207][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.784207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.784207][ T10] [ 3936.785963][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3936.785963][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.785963][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.785963][ T10] ipv6_find_idev+0x102/0x170 [ 3936.785963][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.785963][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.785963][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.785963][ T10] netlink_unicast+0x449/0x710 [ 3936.785963][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.785963][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.785963][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.785963][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.785963][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.785963][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.785963][ T10] [ 3936.787848][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3936.788111][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3936.788111][ T10] netdev_get_by_index+0x5e/0x80 [ 3936.788111][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3936.788111][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3936.788111][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3936.788111][ T10] ipv6_add_addr+0x411/0x2000 [ 3936.788111][ T10] inet6_addr_add+0x30e/0xa40 [ 3936.788111][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3936.788111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.788111][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.788111][ T10] netlink_unicast+0x449/0x710 [ 3936.788111][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.788111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.788111][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.788111][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.788111][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.788111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.788111][ T10] [ 3936.790322][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3936.790322][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3936.790322][ T10] ipv6_find_idev+0x102/0x170 [ 3936.790322][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.790322][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.790322][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.790322][ T10] netlink_unicast+0x449/0x710 [ 3936.790322][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.790322][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.790322][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.790322][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.790322][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.790322][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.790322][ T10] [ 3936.792036][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3936.792036][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3936.792036][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3936.792036][ T10] ipv6_find_idev+0x102/0x170 [ 3936.792036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3936.792036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3936.792036][ T10] netlink_rcv_skb+0x130/0x360 [ 3936.792036][ T10] netlink_unicast+0x449/0x710 [ 3936.792036][ T10] netlink_sendmsg+0x723/0xbe0 [ 3936.792036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3936.792036][ T10] ___sys_sendmsg+0xee/0x170 [ 3936.792036][ T10] __sys_sendmsg+0xcd/0x170 [ 3936.792036][ T10] do_syscall_64+0xc6/0x1e0 [ 3936.792036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3936.792036][ T10] [ 3946.835866][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3946.836327][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3946.836327][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.836327][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.836327][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.836327][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.836327][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.836327][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.836327][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.836327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.836327][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.836327][ T10] netlink_unicast+0x449/0x710 [ 3946.836327][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.836327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.836327][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.836327][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.836327][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.836327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.836327][ T10] [ 3946.838353][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3946.838353][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.838353][ T10] ipv6_find_idev+0x102/0x170 [ 3946.838353][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.838353][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.838353][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.838353][ T10] netlink_unicast+0x449/0x710 [ 3946.838353][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.838353][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.838353][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.838353][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.838353][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.838353][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.838353][ T10] [ 3946.839895][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3946.839895][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.839895][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.839895][ T10] ipv6_find_idev+0x102/0x170 [ 3946.839895][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.839895][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.839895][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.839895][ T10] netlink_unicast+0x449/0x710 [ 3946.839895][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.839895][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.839895][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.839895][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.839895][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.839895][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.839895][ T10] [ 3946.841611][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3946.841933][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3946.841933][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.841933][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.841933][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.841933][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.841933][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.841933][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.841933][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.841933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.841933][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.841933][ T10] netlink_unicast+0x449/0x710 [ 3946.841933][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.841933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.841933][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.841933][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.841933][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.841933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.841933][ T10] [ 3946.843930][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3946.843930][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.843930][ T10] ipv6_find_idev+0x102/0x170 [ 3946.843930][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.843930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.843930][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.843930][ T10] netlink_unicast+0x449/0x710 [ 3946.843930][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.843930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.843930][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.843930][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.843930][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.843930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.843930][ T10] [ 3946.845464][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3946.845464][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.845464][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.845464][ T10] ipv6_find_idev+0x102/0x170 [ 3946.845464][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.845464][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.845464][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.845464][ T10] netlink_unicast+0x449/0x710 [ 3946.845464][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.845464][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.845464][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.845464][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.845464][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.845464][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.845464][ T10] [ 3946.847165][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3946.847433][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3946.847433][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.847433][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.847433][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.847433][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.847433][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.847433][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.847433][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.847433][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.847433][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.847433][ T10] netlink_unicast+0x449/0x710 [ 3946.847433][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.847433][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.847433][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.847433][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.847433][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.847433][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.847433][ T10] [ 3946.849429][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3946.849429][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.849429][ T10] ipv6_find_idev+0x102/0x170 [ 3946.849429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.849429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.849429][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.849429][ T10] netlink_unicast+0x449/0x710 [ 3946.849429][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.849429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.849429][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.849429][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.849429][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.849429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.849429][ T10] [ 3946.850965][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3946.850965][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.850965][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.850965][ T10] ipv6_find_idev+0x102/0x170 [ 3946.850965][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.850965][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.850965][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.850965][ T10] netlink_unicast+0x449/0x710 [ 3946.850965][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.850965][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.850965][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.850965][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.850965][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.850965][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.850965][ T10] [ 3946.852663][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3946.852931][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3946.852931][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.852931][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.852931][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.852931][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.852931][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.852931][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.852931][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.852931][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.852931][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.852931][ T10] netlink_unicast+0x449/0x710 [ 3946.852931][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.852931][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.852931][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.852931][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.852931][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.852931][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.852931][ T10] [ 3946.854930][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3946.854930][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.854930][ T10] ipv6_find_idev+0x102/0x170 [ 3946.854930][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.854930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.854930][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.854930][ T10] netlink_unicast+0x449/0x710 [ 3946.854930][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.854930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.854930][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.854930][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.854930][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.854930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.854930][ T10] [ 3946.856465][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3946.856465][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.856465][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.856465][ T10] ipv6_find_idev+0x102/0x170 [ 3946.856465][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.856465][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.856465][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.856465][ T10] netlink_unicast+0x449/0x710 [ 3946.856465][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.856465][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.856465][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.856465][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.856465][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.856465][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.856465][ T10] [ 3946.858558][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3946.859166][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3946.859166][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.859166][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.859166][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.859166][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.859166][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.859166][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.859166][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.859166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.859166][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.859166][ T10] netlink_unicast+0x449/0x710 [ 3946.859166][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.859166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.859166][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.859166][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.859166][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.859166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.859166][ T10] [ 3946.861151][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3946.861151][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.861151][ T10] ipv6_find_idev+0x102/0x170 [ 3946.861151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.861151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.861151][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.861151][ T10] netlink_unicast+0x449/0x710 [ 3946.861151][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.861151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.861151][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.861151][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.861151][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.861151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.861151][ T10] [ 3946.862685][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3946.862685][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.862685][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.862685][ T10] ipv6_find_idev+0x102/0x170 [ 3946.862685][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.862685][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.862685][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.862685][ T10] netlink_unicast+0x449/0x710 [ 3946.862685][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.862685][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.862685][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.862685][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.862685][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.862685][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.862685][ T10] [ 3946.864364][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3946.864627][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3946.864627][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.864627][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.864627][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.864627][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.864627][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.864627][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.864627][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.864627][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.864627][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.864627][ T10] netlink_unicast+0x449/0x710 [ 3946.864627][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.864627][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.864627][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.864627][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.864627][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.864627][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.864627][ T10] [ 3946.866625][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3946.866625][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.866625][ T10] ipv6_find_idev+0x102/0x170 [ 3946.866625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.866625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.866625][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.866625][ T10] netlink_unicast+0x449/0x710 [ 3946.866625][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.866625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.866625][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.866625][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.866625][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.866625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.866625][ T10] [ 3946.868225][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3946.868225][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.868225][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.868225][ T10] ipv6_find_idev+0x102/0x170 [ 3946.868225][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.868225][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.868225][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.868225][ T10] netlink_unicast+0x449/0x710 [ 3946.868225][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.868225][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.868225][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.868225][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.868225][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.868225][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.868225][ T10] [ 3946.870187][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3946.870498][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3946.870498][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.870498][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.870498][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.870498][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.870498][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.870498][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.870498][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.870498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.870498][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.870498][ T10] netlink_unicast+0x449/0x710 [ 3946.870498][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.870498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.870498][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.870498][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.870498][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.870498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.870498][ T10] [ 3946.872690][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3946.872690][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.872690][ T10] ipv6_find_idev+0x102/0x170 [ 3946.872690][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.872690][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.872690][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.872690][ T10] netlink_unicast+0x449/0x710 [ 3946.872690][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.872690][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.872690][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.872690][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.872690][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.872690][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.872690][ T10] [ 3946.874402][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3946.874402][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.874402][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.874402][ T10] ipv6_find_idev+0x102/0x170 [ 3946.874402][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.874402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.874402][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.874402][ T10] netlink_unicast+0x449/0x710 [ 3946.874402][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.874402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.874402][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.874402][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.874402][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.874402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.874402][ T10] [ 3946.876362][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3946.876744][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3946.876744][ T10] netdev_get_by_index+0x5e/0x80 [ 3946.876744][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3946.876744][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3946.876744][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3946.876744][ T10] ipv6_add_addr+0x411/0x2000 [ 3946.876744][ T10] inet6_addr_add+0x30e/0xa40 [ 3946.876744][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.876744][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.876744][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.876744][ T10] netlink_unicast+0x449/0x710 [ 3946.876744][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.876744][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.876744][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.876744][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.876744][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.876744][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.876744][ T10] [ 3946.878862][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3946.878862][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3946.878862][ T10] ipv6_find_idev+0x102/0x170 [ 3946.878862][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.878862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.878862][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.878862][ T10] netlink_unicast+0x449/0x710 [ 3946.878862][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.878862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.878862][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.878862][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.878862][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.878862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.878862][ T10] [ 3946.880574][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3946.880574][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3946.880574][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3946.880574][ T10] ipv6_find_idev+0x102/0x170 [ 3946.880574][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.880574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.880574][ T10] netlink_rcv_skb+0x130/0x360 [ 3946.880574][ T10] netlink_unicast+0x449/0x710 [ 3946.880574][ T10] netlink_sendmsg+0x723/0xbe0 [ 3946.880574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3946.880574][ T10] ___sys_sendmsg+0xee/0x170 [ 3946.880574][ T10] __sys_sendmsg+0xcd/0x170 [ 3946.880574][ T10] do_syscall_64+0xc6/0x1e0 [ 3946.880574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.880574][ T10] [ 3957.123762][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3957.124189][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3957.124189][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.124189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.124189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.124189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.124189][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.124189][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.124189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.124189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.124189][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.124189][ T10] netlink_unicast+0x449/0x710 [ 3957.124189][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.124189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.124189][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.124189][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.124189][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.124189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.124189][ T10] [ 3957.126185][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3957.126185][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.126185][ T10] ipv6_find_idev+0x102/0x170 [ 3957.126185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.126185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.126185][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.126185][ T10] netlink_unicast+0x449/0x710 [ 3957.126185][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.126185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.126185][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.126185][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.126185][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.126185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.126185][ T10] [ 3957.127708][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3957.127708][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.127708][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.127708][ T10] ipv6_find_idev+0x102/0x170 [ 3957.127708][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.127708][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.127708][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.127708][ T10] netlink_unicast+0x449/0x710 [ 3957.127708][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.127708][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.127708][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.127708][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.127708][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.127708][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.127708][ T10] [ 3957.129385][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3957.129654][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3957.129654][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.129654][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.129654][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.129654][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.129654][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.129654][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.129654][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.129654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.129654][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.129654][ T10] netlink_unicast+0x449/0x710 [ 3957.129654][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.129654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.129654][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.129654][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.129654][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.129654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.129654][ T10] [ 3957.131629][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3957.131629][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.131629][ T10] ipv6_find_idev+0x102/0x170 [ 3957.131629][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.131629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.131629][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.131629][ T10] netlink_unicast+0x449/0x710 [ 3957.131629][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.131629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.131629][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.131629][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.131629][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.131629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.131629][ T10] [ 3957.133169][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3957.133169][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.133169][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.133169][ T10] ipv6_find_idev+0x102/0x170 [ 3957.133169][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.133169][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.133169][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.133169][ T10] netlink_unicast+0x449/0x710 [ 3957.133169][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.133169][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.133169][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.133169][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.133169][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.133169][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.133169][ T10] [ 3957.135380][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3957.135666][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3957.135666][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.135666][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.135666][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.135666][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.135666][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.135666][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.135666][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.135666][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.135666][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.135666][ T10] netlink_unicast+0x449/0x710 [ 3957.135666][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.135666][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.135666][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.135666][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.135666][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.135666][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.135666][ T10] [ 3957.138032][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3957.138032][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.138032][ T10] ipv6_find_idev+0x102/0x170 [ 3957.138032][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.138032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.138032][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.138032][ T10] netlink_unicast+0x449/0x710 [ 3957.138032][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.138032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.138032][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.138032][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.138032][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.138032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.138032][ T10] [ 3957.139554][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3957.139554][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.139554][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.139554][ T10] ipv6_find_idev+0x102/0x170 [ 3957.139554][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.139554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.139554][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.139554][ T10] netlink_unicast+0x449/0x710 [ 3957.139554][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.139554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.139554][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.139554][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.139554][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.139554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.139554][ T10] [ 3957.141232][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3957.141491][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3957.141491][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.141491][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.141491][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.141491][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.141491][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.141491][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.141491][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.141491][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.141491][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.141491][ T10] netlink_unicast+0x449/0x710 [ 3957.141491][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.141491][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.141491][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.141491][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.141491][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.141491][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.141491][ T10] [ 3957.143479][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3957.143479][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.143479][ T10] ipv6_find_idev+0x102/0x170 [ 3957.143479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.143479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.143479][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.143479][ T10] netlink_unicast+0x449/0x710 [ 3957.143479][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.143479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.143479][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.143479][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.143479][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.143479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.143479][ T10] [ 3957.145005][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3957.145005][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.145005][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.145005][ T10] ipv6_find_idev+0x102/0x170 [ 3957.145005][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.145005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.145005][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.145005][ T10] netlink_unicast+0x449/0x710 [ 3957.145005][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.145005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.145005][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.145005][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.145005][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.145005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.145005][ T10] [ 3957.147104][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3957.147375][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3957.147375][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.147375][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.147375][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.147375][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.147375][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.147375][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.147375][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.147375][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.147375][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.147375][ T10] netlink_unicast+0x449/0x710 [ 3957.147375][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.147375][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.147375][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.147375][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.147375][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.147375][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.147375][ T10] [ 3957.149346][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3957.149346][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.149346][ T10] ipv6_find_idev+0x102/0x170 [ 3957.149346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.149346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.149346][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.149346][ T10] netlink_unicast+0x449/0x710 [ 3957.149346][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.149346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.149346][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.149346][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.149346][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.149346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.149346][ T10] [ 3957.150867][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3957.150867][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.150867][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.150867][ T10] ipv6_find_idev+0x102/0x170 [ 3957.150867][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.150867][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.150867][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.150867][ T10] netlink_unicast+0x449/0x710 [ 3957.150867][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.150867][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.150867][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.150867][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.150867][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.150867][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.150867][ T10] [ 3957.152577][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3957.152894][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3957.152894][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.152894][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.152894][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.152894][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.152894][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.152894][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.152894][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.152894][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.152894][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.152894][ T10] netlink_unicast+0x449/0x710 [ 3957.152894][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.152894][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.152894][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.152894][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.152894][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.152894][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.152894][ T10] [ 3957.154984][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3957.154984][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.154984][ T10] ipv6_find_idev+0x102/0x170 [ 3957.154984][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.154984][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.154984][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.154984][ T10] netlink_unicast+0x449/0x710 [ 3957.154984][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.154984][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.154984][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.154984][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.154984][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.154984][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.154984][ T10] [ 3957.156756][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3957.156756][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.156756][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.156756][ T10] ipv6_find_idev+0x102/0x170 [ 3957.156756][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.156756][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.156756][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.156756][ T10] netlink_unicast+0x449/0x710 [ 3957.156756][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.156756][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.156756][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.156756][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.156756][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.156756][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.156756][ T10] [ 3957.158686][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3957.158952][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3957.158952][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.158952][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.158952][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.158952][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.158952][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.158952][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.158952][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.158952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.158952][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.158952][ T10] netlink_unicast+0x449/0x710 [ 3957.158952][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.158952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.158952][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.158952][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.158952][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.158952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.158952][ T10] [ 3957.161103][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3957.161103][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.161103][ T10] ipv6_find_idev+0x102/0x170 [ 3957.161103][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.161103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.161103][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.161103][ T10] netlink_unicast+0x449/0x710 [ 3957.161103][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.161103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.161103][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.161103][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.161103][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.161103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.161103][ T10] [ 3957.162816][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3957.162816][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.162816][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.162816][ T10] ipv6_find_idev+0x102/0x170 [ 3957.162816][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.162816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.162816][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.162816][ T10] netlink_unicast+0x449/0x710 [ 3957.162816][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.162816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.162816][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.162816][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.162816][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.162816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.162816][ T10] [ 3957.164771][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3957.165036][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3957.165036][ T10] netdev_get_by_index+0x5e/0x80 [ 3957.165036][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3957.165036][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3957.165036][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3957.165036][ T10] ipv6_add_addr+0x411/0x2000 [ 3957.165036][ T10] inet6_addr_add+0x30e/0xa40 [ 3957.165036][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3957.165036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.165036][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.165036][ T10] netlink_unicast+0x449/0x710 [ 3957.165036][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.165036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.165036][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.165036][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.165036][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.165036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.165036][ T10] [ 3957.167250][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3957.167250][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3957.167250][ T10] ipv6_find_idev+0x102/0x170 [ 3957.167250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.167250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.167250][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.167250][ T10] netlink_unicast+0x449/0x710 [ 3957.167250][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.167250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.167250][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.167250][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.167250][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.167250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.167250][ T10] [ 3957.168957][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3957.168957][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3957.168957][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3957.168957][ T10] ipv6_find_idev+0x102/0x170 [ 3957.168957][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3957.168957][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3957.168957][ T10] netlink_rcv_skb+0x130/0x360 [ 3957.168957][ T10] netlink_unicast+0x449/0x710 [ 3957.168957][ T10] netlink_sendmsg+0x723/0xbe0 [ 3957.168957][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3957.168957][ T10] ___sys_sendmsg+0xee/0x170 [ 3957.168957][ T10] __sys_sendmsg+0xcd/0x170 [ 3957.168957][ T10] do_syscall_64+0xc6/0x1e0 [ 3957.168957][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3957.168957][ T10] [ 3967.355751][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3967.356178][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3967.356178][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.356178][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.356178][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.356178][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.356178][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.356178][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.356178][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.356178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.356178][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.356178][ T10] netlink_unicast+0x449/0x710 [ 3967.356178][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.356178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.356178][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.356178][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.356178][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.356178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.356178][ T10] [ 3967.358173][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3967.358173][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.358173][ T10] ipv6_find_idev+0x102/0x170 [ 3967.358173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.358173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.358173][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.358173][ T10] netlink_unicast+0x449/0x710 [ 3967.358173][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.358173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.358173][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.358173][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.358173][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.358173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.358173][ T10] [ 3967.359704][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3967.359704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.359704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.359704][ T10] ipv6_find_idev+0x102/0x170 [ 3967.359704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.359704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.359704][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.359704][ T10] netlink_unicast+0x449/0x710 [ 3967.359704][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.359704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.359704][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.359704][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.359704][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.359704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.359704][ T10] [ 3967.361386][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3967.361660][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3967.361660][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.361660][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.361660][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.361660][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.361660][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.361660][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.361660][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.361660][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.361660][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.361660][ T10] netlink_unicast+0x449/0x710 [ 3967.361660][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.361660][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.361660][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.361660][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.361660][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.361660][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.361660][ T10] [ 3967.363634][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3967.363634][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.363634][ T10] ipv6_find_idev+0x102/0x170 [ 3967.363634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.363634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.363634][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.363634][ T10] netlink_unicast+0x449/0x710 [ 3967.363634][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.363634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.363634][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.363634][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.363634][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.363634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.363634][ T10] [ 3967.365155][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3967.365155][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.365155][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.365155][ T10] ipv6_find_idev+0x102/0x170 [ 3967.365155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.365155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.365155][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.365155][ T10] netlink_unicast+0x449/0x710 [ 3967.365155][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.365155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.365155][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.365155][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.365155][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.365155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.365155][ T10] [ 3967.366822][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3967.367088][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3967.367088][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.367088][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.367088][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.367088][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.367088][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.367088][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.367088][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.367088][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.367088][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.367088][ T10] netlink_unicast+0x449/0x710 [ 3967.367088][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.367088][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.367088][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.367088][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.367088][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.367088][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.367088][ T10] [ 3967.369067][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3967.369067][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.369067][ T10] ipv6_find_idev+0x102/0x170 [ 3967.369067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.369067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.369067][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.369067][ T10] netlink_unicast+0x449/0x710 [ 3967.369067][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.369067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.369067][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.369067][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.369067][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.369067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.369067][ T10] [ 3967.370589][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3967.370589][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.370589][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.370589][ T10] ipv6_find_idev+0x102/0x170 [ 3967.370589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.370589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.370589][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.370589][ T10] netlink_unicast+0x449/0x710 [ 3967.370589][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.370589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.370589][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.370589][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.370589][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.370589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.370589][ T10] [ 3967.372271][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3967.372530][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3967.372530][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.372530][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.372530][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.372530][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.372530][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.372530][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.372530][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.372530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.372530][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.372530][ T10] netlink_unicast+0x449/0x710 [ 3967.372530][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.372530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.372530][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.372530][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.372530][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.372530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.372530][ T10] [ 3967.374505][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3967.374505][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.374505][ T10] ipv6_find_idev+0x102/0x170 [ 3967.374505][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.374505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.374505][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.374505][ T10] netlink_unicast+0x449/0x710 [ 3967.374505][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.374505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.374505][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.374505][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.374505][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.374505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.374505][ T10] [ 3967.376059][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3967.376059][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.376059][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.376059][ T10] ipv6_find_idev+0x102/0x170 [ 3967.376059][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.376059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.376059][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.376059][ T10] netlink_unicast+0x449/0x710 [ 3967.376059][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.376059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.376059][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.376059][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.376059][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.376059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.376059][ T10] [ 3967.378131][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3967.378399][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3967.378399][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.378399][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.378399][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.378399][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.378399][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.378399][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.378399][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.378399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.378399][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.378399][ T10] netlink_unicast+0x449/0x710 [ 3967.378399][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.378399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.378399][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.378399][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.378399][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.378399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.378399][ T10] [ 3967.380369][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3967.380369][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.380369][ T10] ipv6_find_idev+0x102/0x170 [ 3967.380369][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.380369][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.380369][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.380369][ T10] netlink_unicast+0x449/0x710 [ 3967.380369][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.380369][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.380369][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.380369][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.380369][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.380369][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.380369][ T10] [ 3967.381896][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3967.381896][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.381896][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.381896][ T10] ipv6_find_idev+0x102/0x170 [ 3967.381896][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.381896][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.381896][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.381896][ T10] netlink_unicast+0x449/0x710 [ 3967.381896][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.381896][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.381896][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.381896][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.381896][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.381896][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.381896][ T10] [ 3967.383599][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3967.383922][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3967.383922][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.383922][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.383922][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.383922][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.383922][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.383922][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.383922][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.383922][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.383922][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.383922][ T10] netlink_unicast+0x449/0x710 [ 3967.383922][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.383922][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.383922][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.383922][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.383922][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.383922][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.383922][ T10] [ 3967.386014][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3967.386014][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.386014][ T10] ipv6_find_idev+0x102/0x170 [ 3967.386014][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.386014][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.386014][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.386014][ T10] netlink_unicast+0x449/0x710 [ 3967.386014][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.386014][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.386014][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.386014][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.386014][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.386014][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.386014][ T10] [ 3967.387704][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3967.387704][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.387704][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.387704][ T10] ipv6_find_idev+0x102/0x170 [ 3967.387704][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.387704][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.387704][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.387704][ T10] netlink_unicast+0x449/0x710 [ 3967.387704][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.387704][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.387704][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.387704][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.387704][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.387704][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.387704][ T10] [ 3967.389650][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3967.389909][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3967.389909][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.389909][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.389909][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.389909][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.389909][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.389909][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.389909][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.389909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.389909][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.389909][ T10] netlink_unicast+0x449/0x710 [ 3967.389909][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.389909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.389909][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.389909][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.389909][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.389909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.389909][ T10] [ 3967.392135][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3967.392135][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.392135][ T10] ipv6_find_idev+0x102/0x170 [ 3967.392135][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.392135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.392135][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.392135][ T10] netlink_unicast+0x449/0x710 [ 3967.392135][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.392135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.392135][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.392135][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.392135][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.392135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.392135][ T10] [ 3967.393845][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3967.393845][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.393845][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.393845][ T10] ipv6_find_idev+0x102/0x170 [ 3967.393845][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.393845][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.393845][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.393845][ T10] netlink_unicast+0x449/0x710 [ 3967.393845][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.393845][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.393845][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.393845][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.393845][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.393845][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.393845][ T10] [ 3967.395732][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3967.396050][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3967.396050][ T10] netdev_get_by_index+0x5e/0x80 [ 3967.396050][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3967.396050][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3967.396050][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3967.396050][ T10] ipv6_add_addr+0x411/0x2000 [ 3967.396050][ T10] inet6_addr_add+0x30e/0xa40 [ 3967.396050][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3967.396050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.396050][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.396050][ T10] netlink_unicast+0x449/0x710 [ 3967.396050][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.396050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.396050][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.396050][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.396050][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.396050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.396050][ T10] [ 3967.398205][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3967.398205][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3967.398205][ T10] ipv6_find_idev+0x102/0x170 [ 3967.398205][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.398205][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.398205][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.398205][ T10] netlink_unicast+0x449/0x710 [ 3967.398205][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.398205][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.398205][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.398205][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.398205][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.398205][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.398205][ T10] [ 3967.399959][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3967.399959][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3967.399959][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3967.399959][ T10] ipv6_find_idev+0x102/0x170 [ 3967.399959][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3967.399959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3967.399959][ T10] netlink_rcv_skb+0x130/0x360 [ 3967.399959][ T10] netlink_unicast+0x449/0x710 [ 3967.399959][ T10] netlink_sendmsg+0x723/0xbe0 [ 3967.399959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3967.399959][ T10] ___sys_sendmsg+0xee/0x170 [ 3967.399959][ T10] __sys_sendmsg+0xcd/0x170 [ 3967.399959][ T10] do_syscall_64+0xc6/0x1e0 [ 3967.399959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3967.399959][ T10] [ 3977.643755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3977.644248][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3977.644248][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.644248][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.644248][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.644248][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.644248][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.644248][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.644248][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.644248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.644248][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.644248][ T10] netlink_unicast+0x449/0x710 [ 3977.644248][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.644248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.644248][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.644248][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.644248][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.644248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.644248][ T10] [ 3977.646238][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3977.646238][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.646238][ T10] ipv6_find_idev+0x102/0x170 [ 3977.646238][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.646238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.646238][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.646238][ T10] netlink_unicast+0x449/0x710 [ 3977.646238][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.646238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.646238][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.646238][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.646238][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.646238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.646238][ T10] [ 3977.647754][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3977.647754][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.647754][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.647754][ T10] ipv6_find_idev+0x102/0x170 [ 3977.647754][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.647754][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.647754][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.647754][ T10] netlink_unicast+0x449/0x710 [ 3977.647754][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.647754][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.647754][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.647754][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.647754][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.647754][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.647754][ T10] [ 3977.649518][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3977.649802][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3977.649802][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.649802][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.649802][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.649802][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.649802][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.649802][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.649802][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.649802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.649802][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.649802][ T10] netlink_unicast+0x449/0x710 [ 3977.649802][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.649802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.649802][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.649802][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.649802][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.649802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.649802][ T10] [ 3977.651789][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3977.651789][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.651789][ T10] ipv6_find_idev+0x102/0x170 [ 3977.651789][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.651789][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.651789][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.651789][ T10] netlink_unicast+0x449/0x710 [ 3977.651789][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.651789][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.651789][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.651789][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.651789][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.651789][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.651789][ T10] [ 3977.653313][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3977.653313][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.653313][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.653313][ T10] ipv6_find_idev+0x102/0x170 [ 3977.653313][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.653313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.653313][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.653313][ T10] netlink_unicast+0x449/0x710 [ 3977.653313][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.653313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.653313][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.653313][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.653313][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.653313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.653313][ T10] [ 3977.654980][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3977.655246][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3977.655246][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.655246][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.655246][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.655246][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.655246][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.655246][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.655246][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.655246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.655246][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.655246][ T10] netlink_unicast+0x449/0x710 [ 3977.655246][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.655246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.655246][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.655246][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.655246][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.655246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.655246][ T10] [ 3977.657228][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3977.657228][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.657228][ T10] ipv6_find_idev+0x102/0x170 [ 3977.657228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.657228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.657228][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.657228][ T10] netlink_unicast+0x449/0x710 [ 3977.657228][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.657228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.657228][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.657228][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.657228][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.657228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.657228][ T10] [ 3977.658750][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3977.658750][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.658750][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.658750][ T10] ipv6_find_idev+0x102/0x170 [ 3977.658750][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.658750][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.658750][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.658750][ T10] netlink_unicast+0x449/0x710 [ 3977.658750][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.658750][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.658750][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.658750][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.658750][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.658750][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.658750][ T10] [ 3977.660426][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3977.661109][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3977.661109][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.661109][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.661109][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.661109][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.661109][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.661109][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.661109][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.661109][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.661109][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.661109][ T10] netlink_unicast+0x449/0x710 [ 3977.661109][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.661109][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.661109][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.661109][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.661109][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.661109][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.661109][ T10] [ 3977.663076][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3977.663076][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.663076][ T10] ipv6_find_idev+0x102/0x170 [ 3977.663076][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.663076][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.663076][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.663076][ T10] netlink_unicast+0x449/0x710 [ 3977.663076][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.663076][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.663076][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.663076][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.663076][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.663076][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.663076][ T10] [ 3977.664602][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3977.664602][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.664602][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.664602][ T10] ipv6_find_idev+0x102/0x170 [ 3977.664602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.664602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.664602][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.664602][ T10] netlink_unicast+0x449/0x710 [ 3977.664602][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.664602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.664602][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.664602][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.664602][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.664602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.664602][ T10] [ 3977.666308][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3977.666577][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3977.666577][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.666577][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.666577][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.666577][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.666577][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.666577][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.666577][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.666577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.666577][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.666577][ T10] netlink_unicast+0x449/0x710 [ 3977.666577][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.666577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.666577][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.666577][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.666577][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.666577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.666577][ T10] [ 3977.668552][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3977.668552][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.668552][ T10] ipv6_find_idev+0x102/0x170 [ 3977.668552][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.668552][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.668552][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.668552][ T10] netlink_unicast+0x449/0x710 [ 3977.668552][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.668552][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.668552][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.668552][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.668552][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.668552][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.668552][ T10] [ 3977.670075][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3977.670075][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.670075][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.670075][ T10] ipv6_find_idev+0x102/0x170 [ 3977.670075][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.670075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.670075][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.670075][ T10] netlink_unicast+0x449/0x710 [ 3977.670075][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.670075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.670075][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.670075][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.670075][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.670075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.670075][ T10] [ 3977.671784][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3977.672050][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3977.672050][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.672050][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.672050][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.672050][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.672050][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.672050][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.672050][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.672050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.672050][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.672050][ T10] netlink_unicast+0x449/0x710 [ 3977.672050][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.672050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.672050][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.672050][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.672050][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.672050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.672050][ T10] [ 3977.674154][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3977.674154][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.674154][ T10] ipv6_find_idev+0x102/0x170 [ 3977.674154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.674154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.674154][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.674154][ T10] netlink_unicast+0x449/0x710 [ 3977.674154][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.674154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.674154][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.674154][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.674154][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.674154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.674154][ T10] [ 3977.675951][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3977.675951][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.675951][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.675951][ T10] ipv6_find_idev+0x102/0x170 [ 3977.675951][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.675951][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.675951][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.675951][ T10] netlink_unicast+0x449/0x710 [ 3977.675951][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.675951][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.675951][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.675951][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.675951][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.675951][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.675951][ T10] [ 3977.677902][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3977.678171][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3977.678171][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.678171][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.678171][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.678171][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.678171][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.678171][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.678171][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.678171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.678171][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.678171][ T10] netlink_unicast+0x449/0x710 [ 3977.678171][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.678171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.678171][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.678171][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.678171][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.678171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.678171][ T10] [ 3977.680313][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3977.680313][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.680313][ T10] ipv6_find_idev+0x102/0x170 [ 3977.680313][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.680313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.680313][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.680313][ T10] netlink_unicast+0x449/0x710 [ 3977.680313][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.680313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.680313][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.680313][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.680313][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.680313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.680313][ T10] [ 3977.682013][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3977.682013][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.682013][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.682013][ T10] ipv6_find_idev+0x102/0x170 [ 3977.682013][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.682013][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.682013][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.682013][ T10] netlink_unicast+0x449/0x710 [ 3977.682013][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.682013][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.682013][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.682013][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.682013][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.682013][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.682013][ T10] [ 3977.684397][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3977.684722][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3977.684722][ T10] netdev_get_by_index+0x5e/0x80 [ 3977.684722][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3977.684722][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3977.684722][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3977.684722][ T10] ipv6_add_addr+0x411/0x2000 [ 3977.684722][ T10] inet6_addr_add+0x30e/0xa40 [ 3977.684722][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3977.684722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.684722][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.684722][ T10] netlink_unicast+0x449/0x710 [ 3977.684722][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.684722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.684722][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.684722][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.684722][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.684722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.684722][ T10] [ 3977.686876][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3977.686876][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3977.686876][ T10] ipv6_find_idev+0x102/0x170 [ 3977.686876][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.686876][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.686876][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.686876][ T10] netlink_unicast+0x449/0x710 [ 3977.686876][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.686876][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.686876][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.686876][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.686876][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.686876][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.686876][ T10] [ 3977.688642][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3977.688642][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3977.688642][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3977.688642][ T10] ipv6_find_idev+0x102/0x170 [ 3977.688642][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3977.688642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3977.688642][ T10] netlink_rcv_skb+0x130/0x360 [ 3977.688642][ T10] netlink_unicast+0x449/0x710 [ 3977.688642][ T10] netlink_sendmsg+0x723/0xbe0 [ 3977.688642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3977.688642][ T10] ___sys_sendmsg+0xee/0x170 [ 3977.688642][ T10] __sys_sendmsg+0xcd/0x170 [ 3977.688642][ T10] do_syscall_64+0xc6/0x1e0 [ 3977.688642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3977.688642][ T10] [ 3987.931763][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3987.932256][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3987.932256][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.932256][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.932256][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.932256][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.932256][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.932256][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.932256][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.932256][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.932256][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.932256][ T10] netlink_unicast+0x449/0x710 [ 3987.932256][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.932256][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.932256][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.932256][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.932256][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.932256][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.932256][ T10] [ 3987.934253][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3987.934253][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.934253][ T10] ipv6_find_idev+0x102/0x170 [ 3987.934253][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.934253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.934253][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.934253][ T10] netlink_unicast+0x449/0x710 [ 3987.934253][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.934253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.934253][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.934253][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.934253][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.934253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.934253][ T10] [ 3987.935779][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3987.935779][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.935779][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.935779][ T10] ipv6_find_idev+0x102/0x170 [ 3987.935779][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.935779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.935779][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.935779][ T10] netlink_unicast+0x449/0x710 [ 3987.935779][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.935779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.935779][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.935779][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.935779][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.935779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.935779][ T10] [ 3987.937453][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3987.937740][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3987.937740][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.937740][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.937740][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.937740][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.937740][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.937740][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.937740][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.937740][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.937740][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.937740][ T10] netlink_unicast+0x449/0x710 [ 3987.937740][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.937740][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.937740][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.937740][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.937740][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.937740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.937740][ T10] [ 3987.939713][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3987.939713][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.939713][ T10] ipv6_find_idev+0x102/0x170 [ 3987.939713][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.939713][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.939713][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.939713][ T10] netlink_unicast+0x449/0x710 [ 3987.939713][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.939713][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.939713][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.939713][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.939713][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.939713][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.939713][ T10] [ 3987.941240][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3987.941240][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.941240][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.941240][ T10] ipv6_find_idev+0x102/0x170 [ 3987.941240][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.941240][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.941240][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.941240][ T10] netlink_unicast+0x449/0x710 [ 3987.941240][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.941240][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.941240][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.941240][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.941240][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.941240][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.941240][ T10] [ 3987.942925][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3987.943189][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3987.943189][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.943189][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.943189][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.943189][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.943189][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.943189][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.943189][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.943189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.943189][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.943189][ T10] netlink_unicast+0x449/0x710 [ 3987.943189][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.943189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.943189][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.943189][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.943189][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.943189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.943189][ T10] [ 3987.945170][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3987.945170][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.945170][ T10] ipv6_find_idev+0x102/0x170 [ 3987.945170][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.945170][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.945170][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.945170][ T10] netlink_unicast+0x449/0x710 [ 3987.945170][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.945170][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.945170][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.945170][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.945170][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.945170][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.945170][ T10] [ 3987.946686][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3987.946686][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.946686][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.946686][ T10] ipv6_find_idev+0x102/0x170 [ 3987.946686][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.946686][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.946686][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.946686][ T10] netlink_unicast+0x449/0x710 [ 3987.946686][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.946686][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.946686][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.946686][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.946686][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.946686][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.946686][ T10] [ 3987.948350][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3987.948611][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3987.948611][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.948611][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.948611][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.948611][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.948611][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.948611][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.948611][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.948611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.948611][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.948611][ T10] netlink_unicast+0x449/0x710 [ 3987.948611][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.948611][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.948611][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.948611][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.948611][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.948611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.948611][ T10] [ 3987.950581][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3987.950581][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.950581][ T10] ipv6_find_idev+0x102/0x170 [ 3987.950581][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.950581][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.950581][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.950581][ T10] netlink_unicast+0x449/0x710 [ 3987.950581][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.950581][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.950581][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.950581][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.950581][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.950581][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.950581][ T10] [ 3987.952106][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3987.952106][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.952106][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.952106][ T10] ipv6_find_idev+0x102/0x170 [ 3987.952106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.952106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.952106][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.952106][ T10] netlink_unicast+0x449/0x710 [ 3987.952106][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.952106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.952106][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.952106][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.952106][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.952106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.952106][ T10] [ 3987.954172][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3987.954432][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3987.954432][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.954432][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.954432][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.954432][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.954432][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.954432][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.954432][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.954432][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.954432][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.954432][ T10] netlink_unicast+0x449/0x710 [ 3987.954432][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.954432][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.954432][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.954432][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.954432][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.954432][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.954432][ T10] [ 3987.956403][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3987.956403][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.956403][ T10] ipv6_find_idev+0x102/0x170 [ 3987.956403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.956403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.956403][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.956403][ T10] netlink_unicast+0x449/0x710 [ 3987.956403][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.956403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.956403][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.956403][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.956403][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.956403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.956403][ T10] [ 3987.957919][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3987.957919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.957919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.957919][ T10] ipv6_find_idev+0x102/0x170 [ 3987.957919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.957919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.957919][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.957919][ T10] netlink_unicast+0x449/0x710 [ 3987.957919][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.957919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.957919][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.957919][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.957919][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.957919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.957919][ T10] [ 3987.959618][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3987.959930][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3987.959930][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.959930][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.959930][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.959930][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.959930][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.959930][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.959930][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.959930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.959930][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.959930][ T10] netlink_unicast+0x449/0x710 [ 3987.959930][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.959930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.959930][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.959930][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.959930][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.959930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.959930][ T10] [ 3987.962045][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3987.962045][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.962045][ T10] ipv6_find_idev+0x102/0x170 [ 3987.962045][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.962045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.962045][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.962045][ T10] netlink_unicast+0x449/0x710 [ 3987.962045][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.962045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.962045][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.962045][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.962045][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.962045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.962045][ T10] [ 3987.963747][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3987.963747][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.963747][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.963747][ T10] ipv6_find_idev+0x102/0x170 [ 3987.963747][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.963747][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.963747][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.963747][ T10] netlink_unicast+0x449/0x710 [ 3987.963747][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.963747][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.963747][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.963747][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.963747][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.963747][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.963747][ T10] [ 3987.965636][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3987.965952][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3987.965952][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.965952][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.965952][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.965952][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.965952][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.965952][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.965952][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.965952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.965952][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.965952][ T10] netlink_unicast+0x449/0x710 [ 3987.965952][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.965952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.965952][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.965952][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.965952][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.965952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.965952][ T10] [ 3987.968160][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3987.968160][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.968160][ T10] ipv6_find_idev+0x102/0x170 [ 3987.968160][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.968160][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.968160][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.968160][ T10] netlink_unicast+0x449/0x710 [ 3987.968160][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.968160][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.968160][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.968160][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.968160][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.968160][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.968160][ T10] [ 3987.969853][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3987.969853][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.969853][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.969853][ T10] ipv6_find_idev+0x102/0x170 [ 3987.969853][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.969853][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.969853][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.969853][ T10] netlink_unicast+0x449/0x710 [ 3987.969853][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.969853][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.969853][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.969853][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.969853][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.969853][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.969853][ T10] [ 3987.971932][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3987.972196][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3987.972196][ T10] netdev_get_by_index+0x5e/0x80 [ 3987.972196][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3987.972196][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3987.972196][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3987.972196][ T10] ipv6_add_addr+0x411/0x2000 [ 3987.972196][ T10] inet6_addr_add+0x30e/0xa40 [ 3987.972196][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.972196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.972196][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.972196][ T10] netlink_unicast+0x449/0x710 [ 3987.972196][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.972196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.972196][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.972196][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.972196][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.972196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.972196][ T10] [ 3987.974349][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3987.974349][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3987.974349][ T10] ipv6_find_idev+0x102/0x170 [ 3987.974349][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.974349][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.974349][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.974349][ T10] netlink_unicast+0x449/0x710 [ 3987.974349][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.974349][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.974349][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.974349][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.974349][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.974349][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.974349][ T10] [ 3987.976048][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3987.976048][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3987.976048][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3987.976048][ T10] ipv6_find_idev+0x102/0x170 [ 3987.976048][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.976048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.976048][ T10] netlink_rcv_skb+0x130/0x360 [ 3987.976048][ T10] netlink_unicast+0x449/0x710 [ 3987.976048][ T10] netlink_sendmsg+0x723/0xbe0 [ 3987.976048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3987.976048][ T10] ___sys_sendmsg+0xee/0x170 [ 3987.976048][ T10] __sys_sendmsg+0xcd/0x170 [ 3987.976048][ T10] do_syscall_64+0xc6/0x1e0 [ 3987.976048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.976048][ T10] [ 3998.219752][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 3998.220253][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3998.220253][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.220253][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.220253][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.220253][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.220253][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.220253][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.220253][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.220253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.220253][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.220253][ T10] netlink_unicast+0x449/0x710 [ 3998.220253][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.220253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.220253][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.220253][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.220253][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.220253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.220253][ T10] [ 3998.222253][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3998.222253][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.222253][ T10] ipv6_find_idev+0x102/0x170 [ 3998.222253][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.222253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.222253][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.222253][ T10] netlink_unicast+0x449/0x710 [ 3998.222253][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.222253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.222253][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.222253][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.222253][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.222253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.222253][ T10] [ 3998.223784][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 3998.223784][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.223784][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.223784][ T10] ipv6_find_idev+0x102/0x170 [ 3998.223784][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.223784][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.223784][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.223784][ T10] netlink_unicast+0x449/0x710 [ 3998.223784][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.223784][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.223784][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.223784][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.223784][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.223784][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.223784][ T10] [ 3998.225453][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 3998.225735][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3998.225735][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.225735][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.225735][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.225735][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.225735][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.225735][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.225735][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.225735][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.225735][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.225735][ T10] netlink_unicast+0x449/0x710 [ 3998.225735][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.225735][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.225735][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.225735][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.225735][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.225735][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.225735][ T10] [ 3998.227715][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3998.227715][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.227715][ T10] ipv6_find_idev+0x102/0x170 [ 3998.227715][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.227715][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.227715][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.227715][ T10] netlink_unicast+0x449/0x710 [ 3998.227715][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.227715][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.227715][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.227715][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.227715][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.227715][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.227715][ T10] [ 3998.229236][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 3998.229236][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.229236][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.229236][ T10] ipv6_find_idev+0x102/0x170 [ 3998.229236][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.229236][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.229236][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.229236][ T10] netlink_unicast+0x449/0x710 [ 3998.229236][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.229236][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.229236][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.229236][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.229236][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.229236][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.229236][ T10] [ 3998.230906][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 3998.231168][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3998.231168][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.231168][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.231168][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.231168][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.231168][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.231168][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.231168][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.231168][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.231168][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.231168][ T10] netlink_unicast+0x449/0x710 [ 3998.231168][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.231168][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.231168][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.231168][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.231168][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.231168][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.231168][ T10] [ 3998.233151][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3998.233151][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.233151][ T10] ipv6_find_idev+0x102/0x170 [ 3998.233151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.233151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.233151][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.233151][ T10] netlink_unicast+0x449/0x710 [ 3998.233151][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.233151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.233151][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.233151][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.233151][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.233151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.233151][ T10] [ 3998.234673][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 3998.234673][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.234673][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.234673][ T10] ipv6_find_idev+0x102/0x170 [ 3998.234673][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.234673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.234673][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.234673][ T10] netlink_unicast+0x449/0x710 [ 3998.234673][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.234673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.234673][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.234673][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.234673][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.234673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.234673][ T10] [ 3998.236337][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 3998.236594][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3998.236594][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.236594][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.236594][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.236594][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.236594][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.236594][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.236594][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.236594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.236594][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.236594][ T10] netlink_unicast+0x449/0x710 [ 3998.236594][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.236594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.236594][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.236594][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.236594][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.236594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.236594][ T10] [ 3998.238565][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3998.238565][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.238565][ T10] ipv6_find_idev+0x102/0x170 [ 3998.238565][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.238565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.238565][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.238565][ T10] netlink_unicast+0x449/0x710 [ 3998.238565][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.238565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.238565][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.238565][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.238565][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.238565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.238565][ T10] [ 3998.240085][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 3998.240085][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.240085][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.240085][ T10] ipv6_find_idev+0x102/0x170 [ 3998.240085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.240085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.240085][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.240085][ T10] netlink_unicast+0x449/0x710 [ 3998.240085][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.240085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.240085][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.240085][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.240085][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.240085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.240085][ T10] [ 3998.242155][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 3998.242418][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3998.242418][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.242418][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.242418][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.242418][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.242418][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.242418][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.242418][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.242418][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.242418][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.242418][ T10] netlink_unicast+0x449/0x710 [ 3998.242418][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.242418][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.242418][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.242418][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.242418][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.242418][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.242418][ T10] [ 3998.244390][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3998.244390][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.244390][ T10] ipv6_find_idev+0x102/0x170 [ 3998.244390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.244390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.244390][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.244390][ T10] netlink_unicast+0x449/0x710 [ 3998.244390][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.244390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.244390][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.244390][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.244390][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.244390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.244390][ T10] [ 3998.245913][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 3998.245913][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.245913][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.245913][ T10] ipv6_find_idev+0x102/0x170 [ 3998.245913][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.245913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.245913][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.245913][ T10] netlink_unicast+0x449/0x710 [ 3998.245913][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.245913][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.245913][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.245913][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.245913][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.245913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.245913][ T10] [ 3998.247621][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 3998.247947][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3998.247947][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.247947][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.247947][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.247947][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.247947][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.247947][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.247947][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.247947][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.247947][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.247947][ T10] netlink_unicast+0x449/0x710 [ 3998.247947][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.247947][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.247947][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.247947][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.247947][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.247947][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.247947][ T10] [ 3998.250041][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3998.250041][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.250041][ T10] ipv6_find_idev+0x102/0x170 [ 3998.250041][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.250041][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.250041][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.250041][ T10] netlink_unicast+0x449/0x710 [ 3998.250041][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.250041][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.250041][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.250041][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.250041][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.250041][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.250041][ T10] [ 3998.251742][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 3998.251742][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.251742][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.251742][ T10] ipv6_find_idev+0x102/0x170 [ 3998.251742][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.251742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.251742][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.251742][ T10] netlink_unicast+0x449/0x710 [ 3998.251742][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.251742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.251742][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.251742][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.251742][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.251742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.251742][ T10] [ 3998.253627][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 3998.253946][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3998.253946][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.253946][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.253946][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.253946][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.253946][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.253946][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.253946][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.253946][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.253946][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.253946][ T10] netlink_unicast+0x449/0x710 [ 3998.253946][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.253946][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.253946][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.253946][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.253946][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.253946][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.253946][ T10] [ 3998.256094][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3998.256094][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.256094][ T10] ipv6_find_idev+0x102/0x170 [ 3998.256094][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.256094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.256094][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.256094][ T10] netlink_unicast+0x449/0x710 [ 3998.256094][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.256094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.256094][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.256094][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.256094][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.256094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.256094][ T10] [ 3998.257858][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 3998.257858][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.257858][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.257858][ T10] ipv6_find_idev+0x102/0x170 [ 3998.257858][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.257858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.257858][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.257858][ T10] netlink_unicast+0x449/0x710 [ 3998.257858][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.257858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.257858][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.257858][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.257858][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.257858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.257858][ T10] [ 3998.259802][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 3998.260074][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3998.260074][ T10] netdev_get_by_index+0x5e/0x80 [ 3998.260074][ T10] fib6_nh_init+0x3d8/0x15b0 [ 3998.260074][ T10] ip6_route_info_create+0xf18/0x17d0 [ 3998.260074][ T10] addrconf_f6i_alloc+0x244/0x410 [ 3998.260074][ T10] ipv6_add_addr+0x411/0x2000 [ 3998.260074][ T10] inet6_addr_add+0x30e/0xa40 [ 3998.260074][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 3998.260074][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.260074][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.260074][ T10] netlink_unicast+0x449/0x710 [ 3998.260074][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.260074][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.260074][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.260074][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.260074][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.260074][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.260074][ T10] [ 3998.262244][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3998.262244][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 3998.262244][ T10] ipv6_find_idev+0x102/0x170 [ 3998.262244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.262244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.262244][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.262244][ T10] netlink_unicast+0x449/0x710 [ 3998.262244][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.262244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.262244][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.262244][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.262244][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.262244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.262244][ T10] [ 3998.263940][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 3998.263940][ T10] neigh_parms_alloc+0x1e5/0x510 [ 3998.263940][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 3998.263940][ T10] ipv6_find_idev+0x102/0x170 [ 3998.263940][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 3998.263940][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3998.263940][ T10] netlink_rcv_skb+0x130/0x360 [ 3998.263940][ T10] netlink_unicast+0x449/0x710 [ 3998.263940][ T10] netlink_sendmsg+0x723/0xbe0 [ 3998.263940][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 3998.263940][ T10] ___sys_sendmsg+0xee/0x170 [ 3998.263940][ T10] __sys_sendmsg+0xcd/0x170 [ 3998.263940][ T10] do_syscall_64+0xc6/0x1e0 [ 3998.263940][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3998.263940][ T10] [ 4008.323901][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4008.324385][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4008.324385][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.324385][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.324385][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.324385][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.324385][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.324385][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.324385][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.324385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.324385][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.324385][ T10] netlink_unicast+0x449/0x710 [ 4008.324385][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.324385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.324385][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.324385][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.324385][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.324385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.324385][ T10] [ 4008.326385][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4008.326385][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.326385][ T10] ipv6_find_idev+0x102/0x170 [ 4008.326385][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.326385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.326385][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.326385][ T10] netlink_unicast+0x449/0x710 [ 4008.326385][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.326385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.326385][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.326385][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.326385][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.326385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.326385][ T10] [ 4008.327915][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4008.327915][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.327915][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.327915][ T10] ipv6_find_idev+0x102/0x170 [ 4008.327915][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.327915][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.327915][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.327915][ T10] netlink_unicast+0x449/0x710 [ 4008.327915][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.327915][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.327915][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.327915][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.327915][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.327915][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.327915][ T10] [ 4008.329596][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4008.329886][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4008.329886][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.329886][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.329886][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.329886][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.329886][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.329886][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.329886][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.329886][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.329886][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.329886][ T10] netlink_unicast+0x449/0x710 [ 4008.329886][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.329886][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.329886][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.329886][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.329886][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.329886][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.329886][ T10] [ 4008.331879][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4008.331879][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.331879][ T10] ipv6_find_idev+0x102/0x170 [ 4008.331879][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.331879][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.331879][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.331879][ T10] netlink_unicast+0x449/0x710 [ 4008.331879][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.331879][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.331879][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.331879][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.331879][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.331879][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.331879][ T10] [ 4008.333400][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4008.333400][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.333400][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.333400][ T10] ipv6_find_idev+0x102/0x170 [ 4008.333400][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.333400][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.333400][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.333400][ T10] netlink_unicast+0x449/0x710 [ 4008.333400][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.333400][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.333400][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.333400][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.333400][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.333400][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.333400][ T10] [ 4008.335065][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4008.335335][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4008.335335][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.335335][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.335335][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.335335][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.335335][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.335335][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.335335][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.335335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.335335][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.335335][ T10] netlink_unicast+0x449/0x710 [ 4008.335335][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.335335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.335335][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.335335][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.335335][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.335335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.335335][ T10] [ 4008.337307][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4008.337307][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.337307][ T10] ipv6_find_idev+0x102/0x170 [ 4008.337307][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.337307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.337307][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.337307][ T10] netlink_unicast+0x449/0x710 [ 4008.337307][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.337307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.337307][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.337307][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.337307][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.337307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.337307][ T10] [ 4008.338838][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4008.338838][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.338838][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.338838][ T10] ipv6_find_idev+0x102/0x170 [ 4008.338838][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.338838][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.338838][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.338838][ T10] netlink_unicast+0x449/0x710 [ 4008.338838][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.338838][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.338838][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.338838][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.338838][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.338838][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.338838][ T10] [ 4008.340506][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4008.341206][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4008.341206][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.341206][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.341206][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.341206][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.341206][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.341206][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.341206][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.341206][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.341206][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.341206][ T10] netlink_unicast+0x449/0x710 [ 4008.341206][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.341206][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.341206][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.341206][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.341206][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.341206][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.341206][ T10] [ 4008.343301][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4008.343301][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.343301][ T10] ipv6_find_idev+0x102/0x170 [ 4008.343301][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.343301][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.343301][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.343301][ T10] netlink_unicast+0x449/0x710 [ 4008.343301][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.343301][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.343301][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.343301][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.343301][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.343301][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.343301][ T10] [ 4008.344827][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4008.344827][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.344827][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.344827][ T10] ipv6_find_idev+0x102/0x170 [ 4008.344827][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.344827][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.344827][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.344827][ T10] netlink_unicast+0x449/0x710 [ 4008.344827][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.344827][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.344827][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.344827][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.344827][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.344827][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.344827][ T10] [ 4008.346531][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4008.346843][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4008.346843][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.346843][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.346843][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.346843][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.346843][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.346843][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.346843][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.346843][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.346843][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.346843][ T10] netlink_unicast+0x449/0x710 [ 4008.346843][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.346843][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.346843][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.346843][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.346843][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.346843][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.346843][ T10] [ 4008.348831][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4008.348831][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.348831][ T10] ipv6_find_idev+0x102/0x170 [ 4008.348831][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.348831][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.348831][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.348831][ T10] netlink_unicast+0x449/0x710 [ 4008.348831][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.348831][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.348831][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.348831][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.348831][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.348831][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.348831][ T10] [ 4008.350352][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4008.350352][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.350352][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.350352][ T10] ipv6_find_idev+0x102/0x170 [ 4008.350352][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.350352][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.350352][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.350352][ T10] netlink_unicast+0x449/0x710 [ 4008.350352][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.350352][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.350352][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.350352][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.350352][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.350352][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.350352][ T10] [ 4008.352062][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4008.352321][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4008.352321][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.352321][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.352321][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.352321][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.352321][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.352321][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.352321][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.352321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.352321][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.352321][ T10] netlink_unicast+0x449/0x710 [ 4008.352321][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.352321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.352321][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.352321][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.352321][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.352321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.352321][ T10] [ 4008.354355][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4008.354355][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.354355][ T10] ipv6_find_idev+0x102/0x170 [ 4008.354355][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.354355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.354355][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.354355][ T10] netlink_unicast+0x449/0x710 [ 4008.354355][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.354355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.354355][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.354355][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.354355][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.354355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.354355][ T10] [ 4008.356992][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4008.356992][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.356992][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.356992][ T10] ipv6_find_idev+0x102/0x170 [ 4008.356992][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.356992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.356992][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.356992][ T10] netlink_unicast+0x449/0x710 [ 4008.356992][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.356992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.356992][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.356992][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.356992][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.356992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.356992][ T10] [ 4008.358889][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4008.359152][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4008.359152][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.359152][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.359152][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.359152][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.359152][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.359152][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.359152][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.359152][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.359152][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.359152][ T10] netlink_unicast+0x449/0x710 [ 4008.359152][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.359152][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.359152][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.359152][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.359152][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.359152][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.359152][ T10] [ 4008.361297][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4008.361297][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.361297][ T10] ipv6_find_idev+0x102/0x170 [ 4008.361297][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.361297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.361297][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.361297][ T10] netlink_unicast+0x449/0x710 [ 4008.361297][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.361297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.361297][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.361297][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.361297][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.361297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.361297][ T10] [ 4008.363001][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4008.363001][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.363001][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.363001][ T10] ipv6_find_idev+0x102/0x170 [ 4008.363001][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.363001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.363001][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.363001][ T10] netlink_unicast+0x449/0x710 [ 4008.363001][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.363001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.363001][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.363001][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.363001][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.363001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.363001][ T10] [ 4008.364952][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4008.365213][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4008.365213][ T10] netdev_get_by_index+0x5e/0x80 [ 4008.365213][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4008.365213][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4008.365213][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4008.365213][ T10] ipv6_add_addr+0x411/0x2000 [ 4008.365213][ T10] inet6_addr_add+0x30e/0xa40 [ 4008.365213][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4008.365213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.365213][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.365213][ T10] netlink_unicast+0x449/0x710 [ 4008.365213][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.365213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.365213][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.365213][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.365213][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.365213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.365213][ T10] [ 4008.367430][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4008.367430][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4008.367430][ T10] ipv6_find_idev+0x102/0x170 [ 4008.367430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.367430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.367430][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.367430][ T10] netlink_unicast+0x449/0x710 [ 4008.367430][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.367430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.367430][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.367430][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.367430][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.367430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.367430][ T10] [ 4008.369130][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4008.369130][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4008.369130][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4008.369130][ T10] ipv6_find_idev+0x102/0x170 [ 4008.369130][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4008.369130][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4008.369130][ T10] netlink_rcv_skb+0x130/0x360 [ 4008.369130][ T10] netlink_unicast+0x449/0x710 [ 4008.369130][ T10] netlink_sendmsg+0x723/0xbe0 [ 4008.369130][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4008.369130][ T10] ___sys_sendmsg+0xee/0x170 [ 4008.369130][ T10] __sys_sendmsg+0xcd/0x170 [ 4008.369130][ T10] do_syscall_64+0xc6/0x1e0 [ 4008.369130][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4008.369130][ T10] [ 4018.619791][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4018.620283][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4018.620283][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.620283][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.620283][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.620283][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.620283][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.620283][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.620283][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.620283][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.620283][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.620283][ T10] netlink_unicast+0x449/0x710 [ 4018.620283][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.620283][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.620283][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.620283][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.620283][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.620283][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.620283][ T10] [ 4018.622291][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4018.622291][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.622291][ T10] ipv6_find_idev+0x102/0x170 [ 4018.622291][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.622291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.622291][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.622291][ T10] netlink_unicast+0x449/0x710 [ 4018.622291][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.622291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.622291][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.622291][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.622291][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.622291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.622291][ T10] [ 4018.623810][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4018.623810][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.623810][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.623810][ T10] ipv6_find_idev+0x102/0x170 [ 4018.623810][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.623810][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.623810][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.623810][ T10] netlink_unicast+0x449/0x710 [ 4018.623810][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.623810][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.623810][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.623810][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.623810][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.623810][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.623810][ T10] [ 4018.625481][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4018.625765][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4018.625765][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.625765][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.625765][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.625765][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.625765][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.625765][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.625765][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.625765][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.625765][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.625765][ T10] netlink_unicast+0x449/0x710 [ 4018.625765][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.625765][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.625765][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.625765][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.625765][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.625765][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.625765][ T10] [ 4018.627737][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4018.627737][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.627737][ T10] ipv6_find_idev+0x102/0x170 [ 4018.627737][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.627737][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.627737][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.627737][ T10] netlink_unicast+0x449/0x710 [ 4018.627737][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.627737][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.627737][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.627737][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.627737][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.627737][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.627737][ T10] [ 4018.629250][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4018.629250][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.629250][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.629250][ T10] ipv6_find_idev+0x102/0x170 [ 4018.629250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.629250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.629250][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.629250][ T10] netlink_unicast+0x449/0x710 [ 4018.629250][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.629250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.629250][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.629250][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.629250][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.629250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.629250][ T10] [ 4018.630919][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4018.631186][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4018.631186][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.631186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.631186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.631186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.631186][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.631186][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.631186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.631186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.631186][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.631186][ T10] netlink_unicast+0x449/0x710 [ 4018.631186][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.631186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.631186][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.631186][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.631186][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.631186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.631186][ T10] [ 4018.633159][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4018.633159][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.633159][ T10] ipv6_find_idev+0x102/0x170 [ 4018.633159][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.633159][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.633159][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.633159][ T10] netlink_unicast+0x449/0x710 [ 4018.633159][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.633159][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.633159][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.633159][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.633159][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.633159][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.633159][ T10] [ 4018.634672][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4018.634672][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.634672][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.634672][ T10] ipv6_find_idev+0x102/0x170 [ 4018.634672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.634672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.634672][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.634672][ T10] netlink_unicast+0x449/0x710 [ 4018.634672][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.634672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.634672][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.634672][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.634672][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.634672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.634672][ T10] [ 4018.636333][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4018.636605][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4018.636605][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.636605][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.636605][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.636605][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.636605][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.636605][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.636605][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.636605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.636605][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.636605][ T10] netlink_unicast+0x449/0x710 [ 4018.636605][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.636605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.636605][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.636605][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.636605][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.636605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.636605][ T10] [ 4018.638575][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4018.638575][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.638575][ T10] ipv6_find_idev+0x102/0x170 [ 4018.638575][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.638575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.638575][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.638575][ T10] netlink_unicast+0x449/0x710 [ 4018.638575][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.638575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.638575][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.638575][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.638575][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.638575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.638575][ T10] [ 4018.640088][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4018.640088][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.640088][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.640088][ T10] ipv6_find_idev+0x102/0x170 [ 4018.640088][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.640088][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.640088][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.640088][ T10] netlink_unicast+0x449/0x710 [ 4018.640088][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.640088][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.640088][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.640088][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.640088][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.640088][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.640088][ T10] [ 4018.642156][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4018.642428][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4018.642428][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.642428][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.642428][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.642428][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.642428][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.642428][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.642428][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.642428][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.642428][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.642428][ T10] netlink_unicast+0x449/0x710 [ 4018.642428][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.642428][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.642428][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.642428][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.642428][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.642428][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.642428][ T10] [ 4018.644385][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4018.644385][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.644385][ T10] ipv6_find_idev+0x102/0x170 [ 4018.644385][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.644385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.644385][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.644385][ T10] netlink_unicast+0x449/0x710 [ 4018.644385][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.644385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.644385][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.644385][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.644385][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.644385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.644385][ T10] [ 4018.645903][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4018.645903][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.645903][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.645903][ T10] ipv6_find_idev+0x102/0x170 [ 4018.645903][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.645903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.645903][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.645903][ T10] netlink_unicast+0x449/0x710 [ 4018.645903][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.645903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.645903][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.645903][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.645903][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.645903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.645903][ T10] [ 4018.647597][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4018.647913][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4018.647913][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.647913][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.647913][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.647913][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.647913][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.647913][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.647913][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.647913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.647913][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.647913][ T10] netlink_unicast+0x449/0x710 [ 4018.647913][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.647913][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.647913][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.647913][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.647913][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.647913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.647913][ T10] [ 4018.650471][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4018.650471][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.650471][ T10] ipv6_find_idev+0x102/0x170 [ 4018.650471][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.650471][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.650471][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.650471][ T10] netlink_unicast+0x449/0x710 [ 4018.650471][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.650471][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.650471][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.650471][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.650471][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.650471][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.650471][ T10] [ 4018.652181][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4018.652181][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.652181][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.652181][ T10] ipv6_find_idev+0x102/0x170 [ 4018.652181][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.652181][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.652181][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.652181][ T10] netlink_unicast+0x449/0x710 [ 4018.652181][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.652181][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.652181][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.652181][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.652181][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.652181][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.652181][ T10] [ 4018.654125][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4018.654384][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4018.654384][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.654384][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.654384][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.654384][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.654384][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.654384][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.654384][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.654384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.654384][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.654384][ T10] netlink_unicast+0x449/0x710 [ 4018.654384][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.654384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.654384][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.654384][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.654384][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.654384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.654384][ T10] [ 4018.656530][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4018.656530][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.656530][ T10] ipv6_find_idev+0x102/0x170 [ 4018.656530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.656530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.656530][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.656530][ T10] netlink_unicast+0x449/0x710 [ 4018.656530][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.656530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.656530][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.656530][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.656530][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.656530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.656530][ T10] [ 4018.658228][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4018.658228][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.658228][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.658228][ T10] ipv6_find_idev+0x102/0x170 [ 4018.658228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.658228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.658228][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.658228][ T10] netlink_unicast+0x449/0x710 [ 4018.658228][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.658228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.658228][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.658228][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.658228][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.658228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.658228][ T10] [ 4018.660103][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4018.660366][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4018.660366][ T10] netdev_get_by_index+0x5e/0x80 [ 4018.660366][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4018.660366][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4018.660366][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4018.660366][ T10] ipv6_add_addr+0x411/0x2000 [ 4018.660366][ T10] inet6_addr_add+0x30e/0xa40 [ 4018.660366][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4018.660366][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.660366][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.660366][ T10] netlink_unicast+0x449/0x710 [ 4018.660366][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.660366][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.660366][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.660366][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.660366][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.660366][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.660366][ T10] [ 4018.662577][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4018.662577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4018.662577][ T10] ipv6_find_idev+0x102/0x170 [ 4018.662577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.662577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.662577][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.662577][ T10] netlink_unicast+0x449/0x710 [ 4018.662577][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.662577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.662577][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.662577][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.662577][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.662577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.662577][ T10] [ 4018.664327][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4018.664327][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4018.664327][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4018.664327][ T10] ipv6_find_idev+0x102/0x170 [ 4018.664327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4018.664327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4018.664327][ T10] netlink_rcv_skb+0x130/0x360 [ 4018.664327][ T10] netlink_unicast+0x449/0x710 [ 4018.664327][ T10] netlink_sendmsg+0x723/0xbe0 [ 4018.664327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4018.664327][ T10] ___sys_sendmsg+0xee/0x170 [ 4018.664327][ T10] __sys_sendmsg+0xcd/0x170 [ 4018.664327][ T10] do_syscall_64+0xc6/0x1e0 [ 4018.664327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4018.664327][ T10] [ 4028.667778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4028.668297][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4028.668297][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.668297][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.668297][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.668297][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.668297][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.668297][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.668297][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.668297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.668297][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.668297][ T10] netlink_unicast+0x449/0x710 [ 4028.668297][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.668297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.668297][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.668297][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.668297][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.668297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.668297][ T10] [ 4028.670310][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4028.670310][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.670310][ T10] ipv6_find_idev+0x102/0x170 [ 4028.670310][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.670310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.670310][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.670310][ T10] netlink_unicast+0x449/0x710 [ 4028.670310][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.670310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.670310][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.670310][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.670310][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.670310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.670310][ T10] [ 4028.671859][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4028.671859][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.671859][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.671859][ T10] ipv6_find_idev+0x102/0x170 [ 4028.671859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.671859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.671859][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.671859][ T10] netlink_unicast+0x449/0x710 [ 4028.671859][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.671859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.671859][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.671859][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.671859][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.671859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.671859][ T10] [ 4028.673582][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4028.673874][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4028.673874][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.673874][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.673874][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.673874][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.673874][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.673874][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.673874][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.673874][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.673874][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.673874][ T10] netlink_unicast+0x449/0x710 [ 4028.673874][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.673874][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.673874][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.673874][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.673874][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.673874][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.673874][ T10] [ 4028.675865][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4028.675865][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.675865][ T10] ipv6_find_idev+0x102/0x170 [ 4028.675865][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.675865][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.675865][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.675865][ T10] netlink_unicast+0x449/0x710 [ 4028.675865][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.675865][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.675865][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.675865][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.675865][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.675865][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.675865][ T10] [ 4028.677402][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4028.677402][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.677402][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.677402][ T10] ipv6_find_idev+0x102/0x170 [ 4028.677402][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.677402][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.677402][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.677402][ T10] netlink_unicast+0x449/0x710 [ 4028.677402][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.677402][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.677402][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.677402][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.677402][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.677402][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.677402][ T10] [ 4028.679089][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4028.679357][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4028.679357][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.679357][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.679357][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.679357][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.679357][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.679357][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.679357][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.679357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.679357][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.679357][ T10] netlink_unicast+0x449/0x710 [ 4028.679357][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.679357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.679357][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.679357][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.679357][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.679357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.679357][ T10] [ 4028.681360][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4028.681360][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.681360][ T10] ipv6_find_idev+0x102/0x170 [ 4028.681360][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.681360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.681360][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.681360][ T10] netlink_unicast+0x449/0x710 [ 4028.681360][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.681360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.681360][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.681360][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.681360][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.681360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.681360][ T10] [ 4028.682904][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4028.682904][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.682904][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.682904][ T10] ipv6_find_idev+0x102/0x170 [ 4028.682904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.682904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.682904][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.682904][ T10] netlink_unicast+0x449/0x710 [ 4028.682904][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.682904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.682904][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.682904][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.682904][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.682904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.682904][ T10] [ 4028.684652][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4028.684925][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4028.684925][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.684925][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.684925][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.684925][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.684925][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.684925][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.684925][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.684925][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.684925][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.684925][ T10] netlink_unicast+0x449/0x710 [ 4028.684925][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.684925][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.684925][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.684925][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.684925][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.684925][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.684925][ T10] [ 4028.686945][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4028.686945][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.686945][ T10] ipv6_find_idev+0x102/0x170 [ 4028.686945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.686945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.686945][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.686945][ T10] netlink_unicast+0x449/0x710 [ 4028.686945][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.686945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.686945][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.686945][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.686945][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.686945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.686945][ T10] [ 4028.688483][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4028.688483][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.688483][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.688483][ T10] ipv6_find_idev+0x102/0x170 [ 4028.688483][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.688483][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.688483][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.688483][ T10] netlink_unicast+0x449/0x710 [ 4028.688483][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.688483][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.688483][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.688483][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.688483][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.688483][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.688483][ T10] [ 4028.690575][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4028.691186][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4028.691186][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.691186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.691186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.691186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.691186][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.691186][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.691186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.691186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.691186][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.691186][ T10] netlink_unicast+0x449/0x710 [ 4028.691186][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.691186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.691186][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.691186][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.691186][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.691186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.691186][ T10] [ 4028.693185][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4028.693185][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.693185][ T10] ipv6_find_idev+0x102/0x170 [ 4028.693185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.693185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.693185][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.693185][ T10] netlink_unicast+0x449/0x710 [ 4028.693185][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.693185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.693185][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.693185][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.693185][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.693185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.693185][ T10] [ 4028.694731][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4028.694731][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.694731][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.694731][ T10] ipv6_find_idev+0x102/0x170 [ 4028.694731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.694731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.694731][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.694731][ T10] netlink_unicast+0x449/0x710 [ 4028.694731][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.694731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.694731][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.694731][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.694731][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.694731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.694731][ T10] [ 4028.696410][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4028.696677][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4028.696677][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.696677][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.696677][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.696677][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.696677][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.696677][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.696677][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.696677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.696677][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.696677][ T10] netlink_unicast+0x449/0x710 [ 4028.696677][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.696677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.696677][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.696677][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.696677][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.696677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.696677][ T10] [ 4028.698692][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4028.698692][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.698692][ T10] ipv6_find_idev+0x102/0x170 [ 4028.698692][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.698692][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.698692][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.698692][ T10] netlink_unicast+0x449/0x710 [ 4028.698692][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.698692][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.698692][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.698692][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.698692][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.698692][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.698692][ T10] [ 4028.700296][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4028.700296][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.700296][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.700296][ T10] ipv6_find_idev+0x102/0x170 [ 4028.700296][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.700296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.700296][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.700296][ T10] netlink_unicast+0x449/0x710 [ 4028.700296][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.700296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.700296][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.700296][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.700296][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.700296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.700296][ T10] [ 4028.702287][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4028.702613][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4028.702613][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.702613][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.702613][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.702613][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.702613][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.702613][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.702613][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.702613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.702613][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.702613][ T10] netlink_unicast+0x449/0x710 [ 4028.702613][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.702613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.702613][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.702613][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.702613][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.702613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.702613][ T10] [ 4028.704791][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4028.704791][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.704791][ T10] ipv6_find_idev+0x102/0x170 [ 4028.704791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.704791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.704791][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.704791][ T10] netlink_unicast+0x449/0x710 [ 4028.704791][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.704791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.704791][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.704791][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.704791][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.704791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.704791][ T10] [ 4028.706504][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4028.706504][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.706504][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.706504][ T10] ipv6_find_idev+0x102/0x170 [ 4028.706504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.706504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.706504][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.706504][ T10] netlink_unicast+0x449/0x710 [ 4028.706504][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.706504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.706504][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.706504][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.706504][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.706504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.706504][ T10] [ 4028.708470][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4028.708807][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4028.708807][ T10] netdev_get_by_index+0x5e/0x80 [ 4028.708807][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4028.708807][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4028.708807][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4028.708807][ T10] ipv6_add_addr+0x411/0x2000 [ 4028.708807][ T10] inet6_addr_add+0x30e/0xa40 [ 4028.708807][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4028.708807][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.708807][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.708807][ T10] netlink_unicast+0x449/0x710 [ 4028.708807][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.708807][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.708807][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.708807][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.708807][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.708807][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.708807][ T10] [ 4028.710994][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4028.710994][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4028.710994][ T10] ipv6_find_idev+0x102/0x170 [ 4028.710994][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.710994][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.710994][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.710994][ T10] netlink_unicast+0x449/0x710 [ 4028.710994][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.710994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.710994][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.710994][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.710994][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.710994][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.710994][ T10] [ 4028.712773][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4028.712773][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4028.712773][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4028.712773][ T10] ipv6_find_idev+0x102/0x170 [ 4028.712773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4028.712773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4028.712773][ T10] netlink_rcv_skb+0x130/0x360 [ 4028.712773][ T10] netlink_unicast+0x449/0x710 [ 4028.712773][ T10] netlink_sendmsg+0x723/0xbe0 [ 4028.712773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4028.712773][ T10] ___sys_sendmsg+0xee/0x170 [ 4028.712773][ T10] __sys_sendmsg+0xcd/0x170 [ 4028.712773][ T10] do_syscall_64+0xc6/0x1e0 [ 4028.712773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4028.712773][ T10] [ 4038.955774][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4038.956283][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4038.956283][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.956283][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.956283][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.956283][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.956283][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.956283][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.956283][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.956283][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.956283][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.956283][ T10] netlink_unicast+0x449/0x710 [ 4038.956283][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.956283][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.956283][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.956283][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.956283][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.956283][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.956283][ T10] [ 4038.958300][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4038.958300][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.958300][ T10] ipv6_find_idev+0x102/0x170 [ 4038.958300][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.958300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.958300][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.958300][ T10] netlink_unicast+0x449/0x710 [ 4038.958300][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.958300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.958300][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.958300][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.958300][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.958300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.958300][ T10] [ 4038.959850][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4038.959850][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4038.959850][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4038.959850][ T10] ipv6_find_idev+0x102/0x170 [ 4038.959850][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.959850][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.959850][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.959850][ T10] netlink_unicast+0x449/0x710 [ 4038.959850][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.959850][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.959850][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.959850][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.959850][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.959850][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.959850][ T10] [ 4038.961583][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4038.961875][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4038.961875][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.961875][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.961875][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.961875][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.961875][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.961875][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.961875][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.961875][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.961875][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.961875][ T10] netlink_unicast+0x449/0x710 [ 4038.961875][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.961875][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.961875][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.961875][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.961875][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.961875][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.961875][ T10] [ 4038.963927][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4038.963927][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.963927][ T10] ipv6_find_idev+0x102/0x170 [ 4038.963927][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.963927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.963927][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.963927][ T10] netlink_unicast+0x449/0x710 [ 4038.963927][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.963927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.963927][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.963927][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.963927][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.963927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.963927][ T10] [ 4038.965464][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4038.965464][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4038.965464][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4038.965464][ T10] ipv6_find_idev+0x102/0x170 [ 4038.965464][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.965464][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.965464][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.965464][ T10] netlink_unicast+0x449/0x710 [ 4038.965464][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.965464][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.965464][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.965464][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.965464][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.965464][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.965464][ T10] [ 4038.967178][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4038.967455][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4038.967455][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.967455][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.967455][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.967455][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.967455][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.967455][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.967455][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.967455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.967455][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.967455][ T10] netlink_unicast+0x449/0x710 [ 4038.967455][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.967455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.967455][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.967455][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.967455][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.967455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.967455][ T10] [ 4038.969456][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4038.969456][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.969456][ T10] ipv6_find_idev+0x102/0x170 [ 4038.969456][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.969456][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.969456][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.969456][ T10] netlink_unicast+0x449/0x710 [ 4038.969456][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.969456][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.969456][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.969456][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.969456][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.969456][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.969456][ T10] [ 4038.970990][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4038.970990][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4038.970990][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4038.970990][ T10] ipv6_find_idev+0x102/0x170 [ 4038.970990][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.970990][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.970990][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.970990][ T10] netlink_unicast+0x449/0x710 [ 4038.970990][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.970990][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.970990][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.970990][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.970990][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.970990][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.970990][ T10] [ 4038.972686][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4038.972952][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4038.972952][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.972952][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.972952][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.972952][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.972952][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.972952][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.972952][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.972952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.972952][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.972952][ T10] netlink_unicast+0x449/0x710 [ 4038.972952][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.972952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.972952][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.972952][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.972952][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.972952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.972952][ T10] [ 4038.974941][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4038.974941][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.974941][ T10] ipv6_find_idev+0x102/0x170 [ 4038.974941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.974941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.974941][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.974941][ T10] netlink_unicast+0x449/0x710 [ 4038.974941][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.974941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.974941][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.974941][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.974941][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.974941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.974941][ T10] [ 4038.976488][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4038.976488][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4038.976488][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4038.976488][ T10] ipv6_find_idev+0x102/0x170 [ 4038.976488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.976488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.976488][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.976488][ T10] netlink_unicast+0x449/0x710 [ 4038.976488][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.976488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.976488][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.976488][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.976488][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.976488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.976488][ T10] [ 4038.978583][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4038.979192][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4038.979192][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.979192][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.979192][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.979192][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.979192][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.979192][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.979192][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.979192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.979192][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.979192][ T10] netlink_unicast+0x449/0x710 [ 4038.979192][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.979192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.979192][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.979192][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.979192][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.979192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.979192][ T10] [ 4038.981186][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4038.981186][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.981186][ T10] ipv6_find_idev+0x102/0x170 [ 4038.981186][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.981186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.981186][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.981186][ T10] netlink_unicast+0x449/0x710 [ 4038.981186][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.981186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.981186][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.981186][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.981186][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.981186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.981186][ T10] [ 4038.982725][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4038.982725][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4038.982725][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4038.982725][ T10] ipv6_find_idev+0x102/0x170 [ 4038.982725][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.982725][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.982725][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.982725][ T10] netlink_unicast+0x449/0x710 [ 4038.982725][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.982725][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.982725][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.982725][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.982725][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.982725][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.982725][ T10] [ 4038.984406][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4038.984675][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4038.984675][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.984675][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.984675][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.984675][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.984675][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.984675][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.984675][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.984675][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.984675][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.984675][ T10] netlink_unicast+0x449/0x710 [ 4038.984675][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.984675][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.984675][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.984675][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.984675][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.984675][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.984675][ T10] [ 4038.986670][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4038.986670][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.986670][ T10] ipv6_find_idev+0x102/0x170 [ 4038.986670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.986670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.986670][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.986670][ T10] netlink_unicast+0x449/0x710 [ 4038.986670][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.986670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.986670][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.986670][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.986670][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.986670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.986670][ T10] [ 4038.988274][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4038.988274][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4038.988274][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4038.988274][ T10] ipv6_find_idev+0x102/0x170 [ 4038.988274][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.988274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.988274][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.988274][ T10] netlink_unicast+0x449/0x710 [ 4038.988274][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.988274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.988274][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.988274][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.988274][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.988274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.988274][ T10] [ 4038.990183][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4038.990493][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4038.990493][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.990493][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.990493][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.990493][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.990493][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.990493][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.990493][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.990493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.990493][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.990493][ T10] netlink_unicast+0x449/0x710 [ 4038.990493][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.990493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.990493][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.990493][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.990493][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.990493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.990493][ T10] [ 4038.992668][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4038.992668][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.992668][ T10] ipv6_find_idev+0x102/0x170 [ 4038.992668][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.992668][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.992668][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.992668][ T10] netlink_unicast+0x449/0x710 [ 4038.992668][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.992668][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.992668][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.992668][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.992668][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.992668][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.992668][ T10] [ 4038.994444][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4038.994444][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4038.994444][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4038.994444][ T10] ipv6_find_idev+0x102/0x170 [ 4038.994444][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.994444][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.994444][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.994444][ T10] netlink_unicast+0x449/0x710 [ 4038.994444][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.994444][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.994444][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.994444][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.994444][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.994444][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.994444][ T10] [ 4038.996402][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4038.996730][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4038.996730][ T10] netdev_get_by_index+0x5e/0x80 [ 4038.996730][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4038.996730][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4038.996730][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4038.996730][ T10] ipv6_add_addr+0x411/0x2000 [ 4038.996730][ T10] inet6_addr_add+0x30e/0xa40 [ 4038.996730][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.996730][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.996730][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.996730][ T10] netlink_unicast+0x449/0x710 [ 4038.996730][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.996730][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.996730][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.996730][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.996730][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.996730][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.996730][ T10] [ 4038.998899][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4038.998899][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4038.998899][ T10] ipv6_find_idev+0x102/0x170 [ 4038.998899][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.998899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.998899][ T10] netlink_rcv_skb+0x130/0x360 [ 4038.998899][ T10] netlink_unicast+0x449/0x710 [ 4038.998899][ T10] netlink_sendmsg+0x723/0xbe0 [ 4038.998899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4038.998899][ T10] ___sys_sendmsg+0xee/0x170 [ 4038.998899][ T10] __sys_sendmsg+0xcd/0x170 [ 4038.998899][ T10] do_syscall_64+0xc6/0x1e0 [ 4038.998899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.998899][ T10] [ 4039.000610][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4039.000610][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4039.000610][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4039.000610][ T10] ipv6_find_idev+0x102/0x170 [ 4039.000610][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4039.000610][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4039.000610][ T10] netlink_rcv_skb+0x130/0x360 [ 4039.000610][ T10] netlink_unicast+0x449/0x710 [ 4039.000610][ T10] netlink_sendmsg+0x723/0xbe0 [ 4039.000610][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4039.000610][ T10] ___sys_sendmsg+0xee/0x170 [ 4039.000610][ T10] __sys_sendmsg+0xcd/0x170 [ 4039.000610][ T10] do_syscall_64+0xc6/0x1e0 [ 4039.000610][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4039.000610][ T10] [ 4049.243794][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4049.244291][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4049.244291][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.244291][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.244291][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.244291][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.244291][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.244291][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.244291][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.244291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.244291][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.244291][ T10] netlink_unicast+0x449/0x710 [ 4049.244291][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.244291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.244291][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.244291][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.244291][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.244291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.244291][ T10] [ 4049.246299][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4049.246299][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.246299][ T10] ipv6_find_idev+0x102/0x170 [ 4049.246299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.246299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.246299][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.246299][ T10] netlink_unicast+0x449/0x710 [ 4049.246299][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.246299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.246299][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.246299][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.246299][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.246299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.246299][ T10] [ 4049.247834][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4049.247834][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.247834][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.247834][ T10] ipv6_find_idev+0x102/0x170 [ 4049.247834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.247834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.247834][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.247834][ T10] netlink_unicast+0x449/0x710 [ 4049.247834][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.247834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.247834][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.247834][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.247834][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.247834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.247834][ T10] [ 4049.249513][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4049.249795][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4049.249795][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.249795][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.249795][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.249795][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.249795][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.249795][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.249795][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.249795][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.249795][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.249795][ T10] netlink_unicast+0x449/0x710 [ 4049.249795][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.249795][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.249795][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.249795][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.249795][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.249795][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.249795][ T10] [ 4049.251782][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4049.251782][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.251782][ T10] ipv6_find_idev+0x102/0x170 [ 4049.251782][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.251782][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.251782][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.251782][ T10] netlink_unicast+0x449/0x710 [ 4049.251782][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.251782][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.251782][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.251782][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.251782][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.251782][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.251782][ T10] [ 4049.253314][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4049.253314][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.253314][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.253314][ T10] ipv6_find_idev+0x102/0x170 [ 4049.253314][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.253314][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.253314][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.253314][ T10] netlink_unicast+0x449/0x710 [ 4049.253314][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.253314][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.253314][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.253314][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.253314][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.253314][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.253314][ T10] [ 4049.254981][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4049.255265][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4049.255265][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.255265][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.255265][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.255265][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.255265][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.255265][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.255265][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.255265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.255265][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.255265][ T10] netlink_unicast+0x449/0x710 [ 4049.255265][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.255265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.255265][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.255265][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.255265][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.255265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.255265][ T10] [ 4049.257239][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4049.257239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.257239][ T10] ipv6_find_idev+0x102/0x170 [ 4049.257239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.257239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.257239][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.257239][ T10] netlink_unicast+0x449/0x710 [ 4049.257239][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.257239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.257239][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.257239][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.257239][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.257239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.257239][ T10] [ 4049.258765][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4049.258765][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.258765][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.258765][ T10] ipv6_find_idev+0x102/0x170 [ 4049.258765][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.258765][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.258765][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.258765][ T10] netlink_unicast+0x449/0x710 [ 4049.258765][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.258765][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.258765][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.258765][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.258765][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.258765][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.258765][ T10] [ 4049.260434][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4049.261135][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4049.261135][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.261135][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.261135][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.261135][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.261135][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.261135][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.261135][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.261135][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.261135][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.261135][ T10] netlink_unicast+0x449/0x710 [ 4049.261135][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.261135][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.261135][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.261135][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.261135][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.261135][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.261135][ T10] [ 4049.263112][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4049.263112][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.263112][ T10] ipv6_find_idev+0x102/0x170 [ 4049.263112][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.263112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.263112][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.263112][ T10] netlink_unicast+0x449/0x710 [ 4049.263112][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.263112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.263112][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.263112][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.263112][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.263112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.263112][ T10] [ 4049.264629][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4049.264629][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.264629][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.264629][ T10] ipv6_find_idev+0x102/0x170 [ 4049.264629][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.264629][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.264629][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.264629][ T10] netlink_unicast+0x449/0x710 [ 4049.264629][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.264629][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.264629][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.264629][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.264629][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.264629][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.264629][ T10] [ 4049.266340][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4049.266605][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4049.266605][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.266605][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.266605][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.266605][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.266605][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.266605][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.266605][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.266605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.266605][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.266605][ T10] netlink_unicast+0x449/0x710 [ 4049.266605][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.266605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.266605][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.266605][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.266605][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.266605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.266605][ T10] [ 4049.268585][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4049.268585][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.268585][ T10] ipv6_find_idev+0x102/0x170 [ 4049.268585][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.268585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.268585][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.268585][ T10] netlink_unicast+0x449/0x710 [ 4049.268585][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.268585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.268585][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.268585][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.268585][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.268585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.268585][ T10] [ 4049.270117][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4049.270117][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.270117][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.270117][ T10] ipv6_find_idev+0x102/0x170 [ 4049.270117][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.270117][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.270117][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.270117][ T10] netlink_unicast+0x449/0x710 [ 4049.270117][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.270117][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.270117][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.270117][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.270117][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.270117][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.270117][ T10] [ 4049.271829][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4049.272097][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4049.272097][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.272097][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.272097][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.272097][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.272097][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.272097][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.272097][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.272097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.272097][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.272097][ T10] netlink_unicast+0x449/0x710 [ 4049.272097][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.272097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.272097][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.272097][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.272097][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.272097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.272097][ T10] [ 4049.274218][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4049.274218][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.274218][ T10] ipv6_find_idev+0x102/0x170 [ 4049.274218][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.274218][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.274218][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.274218][ T10] netlink_unicast+0x449/0x710 [ 4049.274218][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.274218][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.274218][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.274218][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.274218][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.274218][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.274218][ T10] [ 4049.276006][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4049.276006][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.276006][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.276006][ T10] ipv6_find_idev+0x102/0x170 [ 4049.276006][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.276006][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.276006][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.276006][ T10] netlink_unicast+0x449/0x710 [ 4049.276006][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.276006][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.276006][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.276006][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.276006][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.276006][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.276006][ T10] [ 4049.278544][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4049.278868][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4049.278868][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.278868][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.278868][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.278868][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.278868][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.278868][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.278868][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.278868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.278868][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.278868][ T10] netlink_unicast+0x449/0x710 [ 4049.278868][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.278868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.278868][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.278868][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.278868][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.278868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.278868][ T10] [ 4049.281412][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4049.281412][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.281412][ T10] ipv6_find_idev+0x102/0x170 [ 4049.281412][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.281412][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.281412][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.281412][ T10] netlink_unicast+0x449/0x710 [ 4049.281412][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.281412][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.281412][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.281412][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.281412][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.281412][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.281412][ T10] [ 4049.283115][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4049.283115][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.283115][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.283115][ T10] ipv6_find_idev+0x102/0x170 [ 4049.283115][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.283115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.283115][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.283115][ T10] netlink_unicast+0x449/0x710 [ 4049.283115][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.283115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.283115][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.283115][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.283115][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.283115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.283115][ T10] [ 4049.284999][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4049.285308][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4049.285308][ T10] netdev_get_by_index+0x5e/0x80 [ 4049.285308][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4049.285308][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4049.285308][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4049.285308][ T10] ipv6_add_addr+0x411/0x2000 [ 4049.285308][ T10] inet6_addr_add+0x30e/0xa40 [ 4049.285308][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4049.285308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.285308][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.285308][ T10] netlink_unicast+0x449/0x710 [ 4049.285308][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.285308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.285308][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.285308][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.285308][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.285308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.285308][ T10] [ 4049.287518][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4049.287518][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4049.287518][ T10] ipv6_find_idev+0x102/0x170 [ 4049.287518][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.287518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.287518][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.287518][ T10] netlink_unicast+0x449/0x710 [ 4049.287518][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.287518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.287518][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.287518][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.287518][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.287518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.287518][ T10] [ 4049.289208][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4049.289208][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4049.289208][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4049.289208][ T10] ipv6_find_idev+0x102/0x170 [ 4049.289208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4049.289208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4049.289208][ T10] netlink_rcv_skb+0x130/0x360 [ 4049.289208][ T10] netlink_unicast+0x449/0x710 [ 4049.289208][ T10] netlink_sendmsg+0x723/0xbe0 [ 4049.289208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4049.289208][ T10] ___sys_sendmsg+0xee/0x170 [ 4049.289208][ T10] __sys_sendmsg+0xcd/0x170 [ 4049.289208][ T10] do_syscall_64+0xc6/0x1e0 [ 4049.289208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4049.289208][ T10] [ 4056.355784][ T42] INFO: task modprobe:14797 blocked for more than 983 seconds. [ 4056.356143][ T42] Not tainted 6.8.0-virtme #1 [ 4056.356262][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4056.356471][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 4056.356750][ T42] Call Trace: [ 4056.356847][ T42] [ 4056.356918][ T42] __schedule+0x705/0x1ac0 [ 4056.357054][ T42] ? __pfx___schedule+0x10/0x10 [ 4056.357182][ T42] ? schedule+0x1a5/0x210 [ 4056.357277][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4056.357404][ T42] ? mark_lock+0x38/0x3e0 [ 4056.357497][ T42] ? do_raw_spin_lock+0x131/0x270 [ 4056.357623][ T42] ? schedule+0x1a5/0x210 [ 4056.357736][ T42] schedule+0xdf/0x210 [ 4056.357833][ T42] schedule_preempt_disabled+0x15/0x30 [ 4056.357959][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 4056.358087][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 4056.358244][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4056.358373][ T42] ? lock_acquire+0x1c1/0x220 [ 4056.358495][ T42] ? register_pernet_subsys+0x1a/0x50 [ 4056.358628][ T42] down_write+0x1c9/0x200 [ 4056.358732][ T42] ? __pfx_down_write+0x10/0x10 [ 4056.358866][ T42] ? __lock_release+0x103/0x460 [ 4056.358987][ T42] ? __create_object+0x5e/0xb0 [ 4056.359113][ T42] ? __pfx___lock_release+0x10/0x10 [ 4056.359241][ T42] register_pernet_subsys+0x1a/0x50 [ 4056.359366][ T42] tcf_register_action+0xa3/0x600 [ 4056.359492][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 4056.359663][ T42] do_one_initcall+0xc8/0x3f0 [ 4056.359789][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 4056.359919][ T42] ? __create_object+0x5e/0xb0 [ 4056.360046][ T42] ? kasan_unpoison+0x27/0x60 [ 4056.360173][ T42] do_init_module+0x233/0x740 [ 4056.360307][ T42] load_module+0x16b5/0x2350 [ 4056.360447][ T42] ? __pfx_load_module+0x10/0x10 [ 4056.360571][ T42] ? kernel_read_file+0x3d2/0x520 [ 4056.360722][ T42] ? kernel_read_file+0x300/0x520 [ 4056.360850][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 4056.360986][ T42] ? init_module_from_file+0xd2/0x130 [ 4056.361115][ T42] init_module_from_file+0xd2/0x130 [ 4056.361241][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 4056.361400][ T42] ? __lock_release+0x103/0x460 [ 4056.361524][ T42] ? idempotent_init_module+0x32a/0x620 [ 4056.361667][ T42] ? idempotent_init_module+0x32a/0x620 [ 4056.361790][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 4056.361916][ T42] idempotent_init_module+0x342/0x620 [ 4056.362046][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 4056.362217][ T42] __x64_sys_finit_module+0xbe/0x130 [ 4056.362342][ T42] do_syscall_64+0xc6/0x1e0 [ 4056.362469][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4056.362624][ T42] RIP: 0033:0x7f188f3c6e5d [ 4056.362760][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 4056.362948][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 4056.363131][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 4056.363313][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 4056.363493][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 4056.363689][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 4056.363888][ T42] [ 4056.363983][ T42] [ 4056.363983][ T42] Showing all locks held in the system: [ 4056.364160][ T42] 3 locks held by kworker/u16:0/10: [ 4056.364280][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 4056.364535][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 4056.364776][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 4056.365005][ T42] 1 lock held by khungtaskd/42: [ 4056.365122][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 4056.365357][ T42] 2 locks held by kworker/u20:2/10034: [ 4056.365474][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 4056.365730][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 4056.366013][ T42] 1 lock held by modprobe/14797: [ 4056.366129][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 4056.366376][ T42] [ 4056.366436][ T42] ============================================= [ 4056.366436][ T42] [ 4059.531811][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4059.532307][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4059.532307][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.532307][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.532307][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.532307][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.532307][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.532307][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.532307][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.532307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.532307][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.532307][ T10] netlink_unicast+0x449/0x710 [ 4059.532307][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.532307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.532307][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.532307][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.532307][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.532307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.532307][ T10] [ 4059.534320][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4059.534320][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.534320][ T10] ipv6_find_idev+0x102/0x170 [ 4059.534320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.534320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.534320][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.534320][ T10] netlink_unicast+0x449/0x710 [ 4059.534320][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.534320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.534320][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.534320][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.534320][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.534320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.534320][ T10] [ 4059.535847][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4059.535847][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.535847][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.535847][ T10] ipv6_find_idev+0x102/0x170 [ 4059.535847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.535847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.535847][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.535847][ T10] netlink_unicast+0x449/0x710 [ 4059.535847][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.535847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.535847][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.535847][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.535847][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.535847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.535847][ T10] [ 4059.537524][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4059.537809][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4059.537809][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.537809][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.537809][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.537809][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.537809][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.537809][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.537809][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.537809][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.537809][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.537809][ T10] netlink_unicast+0x449/0x710 [ 4059.537809][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.537809][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.537809][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.537809][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.537809][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.537809][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.537809][ T10] [ 4059.539780][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4059.539780][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.539780][ T10] ipv6_find_idev+0x102/0x170 [ 4059.539780][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.539780][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.539780][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.539780][ T10] netlink_unicast+0x449/0x710 [ 4059.539780][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.539780][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.539780][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.539780][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.539780][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.539780][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.539780][ T10] [ 4059.541316][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4059.541316][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.541316][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.541316][ T10] ipv6_find_idev+0x102/0x170 [ 4059.541316][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.541316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.541316][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.541316][ T10] netlink_unicast+0x449/0x710 [ 4059.541316][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.541316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.541316][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.541316][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.541316][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.541316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.541316][ T10] [ 4059.542986][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4059.543257][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4059.543257][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.543257][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.543257][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.543257][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.543257][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.543257][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.543257][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.543257][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.543257][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.543257][ T10] netlink_unicast+0x449/0x710 [ 4059.543257][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.543257][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.543257][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.543257][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.543257][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.543257][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.543257][ T10] [ 4059.545224][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4059.545224][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.545224][ T10] ipv6_find_idev+0x102/0x170 [ 4059.545224][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.545224][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.545224][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.545224][ T10] netlink_unicast+0x449/0x710 [ 4059.545224][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.545224][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.545224][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.545224][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.545224][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.545224][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.545224][ T10] [ 4059.546745][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4059.546745][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.546745][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.546745][ T10] ipv6_find_idev+0x102/0x170 [ 4059.546745][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.546745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.546745][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.546745][ T10] netlink_unicast+0x449/0x710 [ 4059.546745][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.546745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.546745][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.546745][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.546745][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.546745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.546745][ T10] [ 4059.548405][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4059.548663][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4059.548663][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.548663][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.548663][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.548663][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.548663][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.548663][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.548663][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.548663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.548663][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.548663][ T10] netlink_unicast+0x449/0x710 [ 4059.548663][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.548663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.548663][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.548663][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.548663][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.548663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.548663][ T10] [ 4059.550636][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4059.550636][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.550636][ T10] ipv6_find_idev+0x102/0x170 [ 4059.550636][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.550636][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.550636][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.550636][ T10] netlink_unicast+0x449/0x710 [ 4059.550636][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.550636][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.550636][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.550636][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.550636][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.550636][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.550636][ T10] [ 4059.552162][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4059.552162][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.552162][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.552162][ T10] ipv6_find_idev+0x102/0x170 [ 4059.552162][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.552162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.552162][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.552162][ T10] netlink_unicast+0x449/0x710 [ 4059.552162][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.552162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.552162][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.552162][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.552162][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.552162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.552162][ T10] [ 4059.554242][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4059.554505][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4059.554505][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.554505][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.554505][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.554505][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.554505][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.554505][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.554505][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.554505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.554505][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.554505][ T10] netlink_unicast+0x449/0x710 [ 4059.554505][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.554505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.554505][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.554505][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.554505][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.554505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.554505][ T10] [ 4059.556472][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4059.556472][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.556472][ T10] ipv6_find_idev+0x102/0x170 [ 4059.556472][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.556472][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.556472][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.556472][ T10] netlink_unicast+0x449/0x710 [ 4059.556472][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.556472][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.556472][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.556472][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.556472][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.556472][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.556472][ T10] [ 4059.558004][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4059.558004][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.558004][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.558004][ T10] ipv6_find_idev+0x102/0x170 [ 4059.558004][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.558004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.558004][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.558004][ T10] netlink_unicast+0x449/0x710 [ 4059.558004][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.558004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.558004][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.558004][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.558004][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.558004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.558004][ T10] [ 4059.559713][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4059.559975][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4059.559975][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.559975][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.559975][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.559975][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.559975][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.559975][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.559975][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.559975][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.559975][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.559975][ T10] netlink_unicast+0x449/0x710 [ 4059.559975][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.559975][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.559975][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.559975][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.559975][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.559975][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.559975][ T10] [ 4059.562139][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4059.562139][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.562139][ T10] ipv6_find_idev+0x102/0x170 [ 4059.562139][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.562139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.562139][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.562139][ T10] netlink_unicast+0x449/0x710 [ 4059.562139][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.562139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.562139][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.562139][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.562139][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.562139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.562139][ T10] [ 4059.563894][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4059.563894][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.563894][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.563894][ T10] ipv6_find_idev+0x102/0x170 [ 4059.563894][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.563894][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.563894][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.563894][ T10] netlink_unicast+0x449/0x710 [ 4059.563894][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.563894][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.563894][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.563894][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.563894][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.563894][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.563894][ T10] [ 4059.565784][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4059.566044][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4059.566044][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.566044][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.566044][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.566044][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.566044][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.566044][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.566044][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.566044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.566044][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.566044][ T10] netlink_unicast+0x449/0x710 [ 4059.566044][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.566044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.566044][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.566044][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.566044][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.566044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.566044][ T10] [ 4059.568251][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4059.568251][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.568251][ T10] ipv6_find_idev+0x102/0x170 [ 4059.568251][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.568251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.568251][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.568251][ T10] netlink_unicast+0x449/0x710 [ 4059.568251][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.568251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.568251][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.568251][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.568251][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.568251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.568251][ T10] [ 4059.569945][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4059.569945][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.569945][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.569945][ T10] ipv6_find_idev+0x102/0x170 [ 4059.569945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.569945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.569945][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.569945][ T10] netlink_unicast+0x449/0x710 [ 4059.569945][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.569945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.569945][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.569945][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.569945][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.569945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.569945][ T10] [ 4059.571832][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4059.572094][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4059.572094][ T10] netdev_get_by_index+0x5e/0x80 [ 4059.572094][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4059.572094][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4059.572094][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4059.572094][ T10] ipv6_add_addr+0x411/0x2000 [ 4059.572094][ T10] inet6_addr_add+0x30e/0xa40 [ 4059.572094][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4059.572094][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.572094][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.572094][ T10] netlink_unicast+0x449/0x710 [ 4059.572094][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.572094][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.572094][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.572094][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.572094][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.572094][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.572094][ T10] [ 4059.574300][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4059.574300][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4059.574300][ T10] ipv6_find_idev+0x102/0x170 [ 4059.574300][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.574300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.574300][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.574300][ T10] netlink_unicast+0x449/0x710 [ 4059.574300][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.574300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.574300][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.574300][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.574300][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.574300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.574300][ T10] [ 4059.575998][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4059.575998][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4059.575998][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4059.575998][ T10] ipv6_find_idev+0x102/0x170 [ 4059.575998][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4059.575998][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4059.575998][ T10] netlink_rcv_skb+0x130/0x360 [ 4059.575998][ T10] netlink_unicast+0x449/0x710 [ 4059.575998][ T10] netlink_sendmsg+0x723/0xbe0 [ 4059.575998][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4059.575998][ T10] ___sys_sendmsg+0xee/0x170 [ 4059.575998][ T10] __sys_sendmsg+0xcd/0x170 [ 4059.575998][ T10] do_syscall_64+0xc6/0x1e0 [ 4059.575998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4059.575998][ T10] [ 4069.603768][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4069.604292][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4069.604292][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.604292][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.604292][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.604292][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.604292][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.604292][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.604292][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.604292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.604292][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.604292][ T10] netlink_unicast+0x449/0x710 [ 4069.604292][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.604292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.604292][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.604292][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.604292][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.604292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.604292][ T10] [ 4069.606312][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4069.606312][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.606312][ T10] ipv6_find_idev+0x102/0x170 [ 4069.606312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.606312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.606312][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.606312][ T10] netlink_unicast+0x449/0x710 [ 4069.606312][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.606312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.606312][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.606312][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.606312][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.606312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.606312][ T10] [ 4069.607855][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4069.607855][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.607855][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.607855][ T10] ipv6_find_idev+0x102/0x170 [ 4069.607855][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.607855][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.607855][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.607855][ T10] netlink_unicast+0x449/0x710 [ 4069.607855][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.607855][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.607855][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.607855][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.607855][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.607855][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.607855][ T10] [ 4069.609564][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4069.609857][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4069.609857][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.609857][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.609857][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.609857][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.609857][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.609857][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.609857][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.609857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.609857][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.609857][ T10] netlink_unicast+0x449/0x710 [ 4069.609857][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.609857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.609857][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.609857][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.609857][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.609857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.609857][ T10] [ 4069.611847][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4069.611847][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.611847][ T10] ipv6_find_idev+0x102/0x170 [ 4069.611847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.611847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.611847][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.611847][ T10] netlink_unicast+0x449/0x710 [ 4069.611847][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.611847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.611847][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.611847][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.611847][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.611847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.611847][ T10] [ 4069.613389][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4069.613389][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.613389][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.613389][ T10] ipv6_find_idev+0x102/0x170 [ 4069.613389][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.613389][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.613389][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.613389][ T10] netlink_unicast+0x449/0x710 [ 4069.613389][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.613389][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.613389][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.613389][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.613389][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.613389][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.613389][ T10] [ 4069.615082][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4069.615355][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4069.615355][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.615355][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.615355][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.615355][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.615355][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.615355][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.615355][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.615355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.615355][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.615355][ T10] netlink_unicast+0x449/0x710 [ 4069.615355][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.615355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.615355][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.615355][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.615355][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.615355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.615355][ T10] [ 4069.617367][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4069.617367][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.617367][ T10] ipv6_find_idev+0x102/0x170 [ 4069.617367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.617367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.617367][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.617367][ T10] netlink_unicast+0x449/0x710 [ 4069.617367][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.617367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.617367][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.617367][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.617367][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.617367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.617367][ T10] [ 4069.618908][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4069.618908][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.618908][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.618908][ T10] ipv6_find_idev+0x102/0x170 [ 4069.618908][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.618908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.618908][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.618908][ T10] netlink_unicast+0x449/0x710 [ 4069.618908][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.618908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.618908][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.618908][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.618908][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.618908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.618908][ T10] [ 4069.620596][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4069.621844][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4069.621844][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.621844][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.621844][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.621844][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.621844][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.621844][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.621844][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.621844][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.621844][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.621844][ T10] netlink_unicast+0x449/0x710 [ 4069.621844][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.621844][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.621844][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.621844][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.621844][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.621844][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.621844][ T10] [ 4069.623834][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4069.623834][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.623834][ T10] ipv6_find_idev+0x102/0x170 [ 4069.623834][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.623834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.623834][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.623834][ T10] netlink_unicast+0x449/0x710 [ 4069.623834][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.623834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.623834][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.623834][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.623834][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.623834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.623834][ T10] [ 4069.625365][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4069.625365][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.625365][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.625365][ T10] ipv6_find_idev+0x102/0x170 [ 4069.625365][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.625365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.625365][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.625365][ T10] netlink_unicast+0x449/0x710 [ 4069.625365][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.625365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.625365][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.625365][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.625365][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.625365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.625365][ T10] [ 4069.627094][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4069.627412][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4069.627412][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.627412][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.627412][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.627412][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.627412][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.627412][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.627412][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.627412][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.627412][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.627412][ T10] netlink_unicast+0x449/0x710 [ 4069.627412][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.627412][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.627412][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.627412][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.627412][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.627412][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.627412][ T10] [ 4069.629417][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4069.629417][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.629417][ T10] ipv6_find_idev+0x102/0x170 [ 4069.629417][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.629417][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.629417][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.629417][ T10] netlink_unicast+0x449/0x710 [ 4069.629417][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.629417][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.629417][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.629417][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.629417][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.629417][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.629417][ T10] [ 4069.630950][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4069.630950][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.630950][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.630950][ T10] ipv6_find_idev+0x102/0x170 [ 4069.630950][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.630950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.630950][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.630950][ T10] netlink_unicast+0x449/0x710 [ 4069.630950][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.630950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.630950][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.630950][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.630950][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.630950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.630950][ T10] [ 4069.632692][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4069.633000][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4069.633000][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.633000][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.633000][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.633000][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.633000][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.633000][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.633000][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.633000][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.633000][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.633000][ T10] netlink_unicast+0x449/0x710 [ 4069.633000][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.633000][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.633000][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.633000][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.633000][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.633000][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.633000][ T10] [ 4069.634988][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4069.634988][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.634988][ T10] ipv6_find_idev+0x102/0x170 [ 4069.634988][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.634988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.634988][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.634988][ T10] netlink_unicast+0x449/0x710 [ 4069.634988][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.634988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.634988][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.634988][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.634988][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.634988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.634988][ T10] [ 4069.636643][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4069.636643][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.636643][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.636643][ T10] ipv6_find_idev+0x102/0x170 [ 4069.636643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.636643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.636643][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.636643][ T10] netlink_unicast+0x449/0x710 [ 4069.636643][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.636643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.636643][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.636643][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.636643][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.636643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.636643][ T10] [ 4069.638672][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4069.638984][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4069.638984][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.638984][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.638984][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.638984][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.638984][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.638984][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.638984][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.638984][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.638984][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.638984][ T10] netlink_unicast+0x449/0x710 [ 4069.638984][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.638984][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.638984][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.638984][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.638984][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.638984][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.638984][ T10] [ 4069.641154][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4069.641154][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.641154][ T10] ipv6_find_idev+0x102/0x170 [ 4069.641154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.641154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.641154][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.641154][ T10] netlink_unicast+0x449/0x710 [ 4069.641154][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.641154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.641154][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.641154][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.641154][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.641154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.641154][ T10] [ 4069.642873][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4069.642873][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.642873][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.642873][ T10] ipv6_find_idev+0x102/0x170 [ 4069.642873][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.642873][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.642873][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.642873][ T10] netlink_unicast+0x449/0x710 [ 4069.642873][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.642873][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.642873][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.642873][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.642873][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.642873][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.642873][ T10] [ 4069.644813][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4069.645139][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4069.645139][ T10] netdev_get_by_index+0x5e/0x80 [ 4069.645139][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4069.645139][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4069.645139][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4069.645139][ T10] ipv6_add_addr+0x411/0x2000 [ 4069.645139][ T10] inet6_addr_add+0x30e/0xa40 [ 4069.645139][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4069.645139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.645139][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.645139][ T10] netlink_unicast+0x449/0x710 [ 4069.645139][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.645139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.645139][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.645139][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.645139][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.645139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.645139][ T10] [ 4069.647310][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4069.647310][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4069.647310][ T10] ipv6_find_idev+0x102/0x170 [ 4069.647310][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.647310][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.647310][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.647310][ T10] netlink_unicast+0x449/0x710 [ 4069.647310][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.647310][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.647310][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.647310][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.647310][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.647310][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.647310][ T10] [ 4069.649086][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4069.649086][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4069.649086][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4069.649086][ T10] ipv6_find_idev+0x102/0x170 [ 4069.649086][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4069.649086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4069.649086][ T10] netlink_rcv_skb+0x130/0x360 [ 4069.649086][ T10] netlink_unicast+0x449/0x710 [ 4069.649086][ T10] netlink_sendmsg+0x723/0xbe0 [ 4069.649086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4069.649086][ T10] ___sys_sendmsg+0xee/0x170 [ 4069.649086][ T10] __sys_sendmsg+0xcd/0x170 [ 4069.649086][ T10] do_syscall_64+0xc6/0x1e0 [ 4069.649086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4069.649086][ T10] [ 4079.651778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4079.652278][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4079.652278][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.652278][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.652278][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.652278][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.652278][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.652278][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.652278][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.652278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.652278][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.652278][ T10] netlink_unicast+0x449/0x710 [ 4079.652278][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.652278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.652278][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.652278][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.652278][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.652278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.652278][ T10] [ 4079.654544][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4079.654544][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.654544][ T10] ipv6_find_idev+0x102/0x170 [ 4079.654544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.654544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.654544][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.654544][ T10] netlink_unicast+0x449/0x710 [ 4079.654544][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.654544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.654544][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.654544][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.654544][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.654544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.654544][ T10] [ 4079.656297][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4079.656297][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.656297][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.656297][ T10] ipv6_find_idev+0x102/0x170 [ 4079.656297][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.656297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.656297][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.656297][ T10] netlink_unicast+0x449/0x710 [ 4079.656297][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.656297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.656297][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.656297][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.656297][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.656297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.656297][ T10] [ 4079.658214][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4079.658515][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4079.658515][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.658515][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.658515][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.658515][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.658515][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.658515][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.658515][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.658515][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.658515][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.658515][ T10] netlink_unicast+0x449/0x710 [ 4079.658515][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.658515][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.658515][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.658515][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.658515][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.658515][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.658515][ T10] [ 4079.660758][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4079.660758][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.660758][ T10] ipv6_find_idev+0x102/0x170 [ 4079.660758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.660758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.660758][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.660758][ T10] netlink_unicast+0x449/0x710 [ 4079.660758][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.660758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.660758][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.660758][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.660758][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.660758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.660758][ T10] [ 4079.662490][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4079.662490][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.662490][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.662490][ T10] ipv6_find_idev+0x102/0x170 [ 4079.662490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.662490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.662490][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.662490][ T10] netlink_unicast+0x449/0x710 [ 4079.662490][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.662490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.662490][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.662490][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.662490][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.662490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.662490][ T10] [ 4079.664386][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4079.664682][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4079.664682][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.664682][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.664682][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.664682][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.664682][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.664682][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.664682][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.664682][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.664682][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.664682][ T10] netlink_unicast+0x449/0x710 [ 4079.664682][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.664682][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.664682][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.664682][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.664682][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.664682][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.664682][ T10] [ 4079.666933][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4079.666933][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.666933][ T10] ipv6_find_idev+0x102/0x170 [ 4079.666933][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.666933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.666933][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.666933][ T10] netlink_unicast+0x449/0x710 [ 4079.666933][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.666933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.666933][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.666933][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.666933][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.666933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.666933][ T10] [ 4079.668661][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4079.668661][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.668661][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.668661][ T10] ipv6_find_idev+0x102/0x170 [ 4079.668661][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.668661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.668661][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.668661][ T10] netlink_unicast+0x449/0x710 [ 4079.668661][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.668661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.668661][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.668661][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.668661][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.668661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.668661][ T10] [ 4079.670530][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4079.670831][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4079.670831][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.670831][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.670831][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.670831][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.670831][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.670831][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.670831][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.670831][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.670831][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.670831][ T10] netlink_unicast+0x449/0x710 [ 4079.670831][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.670831][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.670831][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.670831][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.670831][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.670831][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.670831][ T10] [ 4079.673069][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4079.673069][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.673069][ T10] ipv6_find_idev+0x102/0x170 [ 4079.673069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.673069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.673069][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.673069][ T10] netlink_unicast+0x449/0x710 [ 4079.673069][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.673069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.673069][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.673069][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.673069][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.673069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.673069][ T10] [ 4079.674766][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4079.674766][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.674766][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.674766][ T10] ipv6_find_idev+0x102/0x170 [ 4079.674766][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.674766][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.674766][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.674766][ T10] netlink_unicast+0x449/0x710 [ 4079.674766][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.674766][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.674766][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.674766][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.674766][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.674766][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.674766][ T10] [ 4079.676660][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4079.676949][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4079.676949][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.676949][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.676949][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.676949][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.676949][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.676949][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.676949][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.676949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.676949][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.676949][ T10] netlink_unicast+0x449/0x710 [ 4079.676949][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.676949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.676949][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.676949][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.676949][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.676949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.676949][ T10] [ 4079.679161][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4079.679161][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.679161][ T10] ipv6_find_idev+0x102/0x170 [ 4079.679161][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.679161][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.679161][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.679161][ T10] netlink_unicast+0x449/0x710 [ 4079.679161][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.679161][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.679161][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.679161][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.679161][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.679161][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.679161][ T10] [ 4079.681001][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4079.681001][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.681001][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.681001][ T10] ipv6_find_idev+0x102/0x170 [ 4079.681001][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.681001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.681001][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.681001][ T10] netlink_unicast+0x449/0x710 [ 4079.681001][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.681001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.681001][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.681001][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.681001][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.681001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.681001][ T10] [ 4079.683240][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4079.683534][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4079.683534][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.683534][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.683534][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.683534][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.683534][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.683534][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.683534][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.683534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.683534][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.683534][ T10] netlink_unicast+0x449/0x710 [ 4079.683534][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.683534][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.683534][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.683534][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.683534][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.683534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.683534][ T10] [ 4079.685979][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4079.685979][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.685979][ T10] ipv6_find_idev+0x102/0x170 [ 4079.685979][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.685979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.685979][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.685979][ T10] netlink_unicast+0x449/0x710 [ 4079.685979][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.685979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.685979][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.685979][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.685979][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.685979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.685979][ T10] [ 4079.687849][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4079.687849][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.687849][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.687849][ T10] ipv6_find_idev+0x102/0x170 [ 4079.687849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.687849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.687849][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.687849][ T10] netlink_unicast+0x449/0x710 [ 4079.687849][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.687849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.687849][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.687849][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.687849][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.687849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.687849][ T10] [ 4079.689995][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4079.690290][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4079.690290][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.690290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.690290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.690290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.690290][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.690290][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.690290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.690290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.690290][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.690290][ T10] netlink_unicast+0x449/0x710 [ 4079.690290][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.690290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.690290][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.690290][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.690290][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.690290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.690290][ T10] [ 4079.692681][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4079.692681][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.692681][ T10] ipv6_find_idev+0x102/0x170 [ 4079.692681][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.692681][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.692681][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.692681][ T10] netlink_unicast+0x449/0x710 [ 4079.692681][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.692681][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.692681][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.692681][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.692681][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.692681][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.692681][ T10] [ 4079.694557][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4079.694557][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.694557][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.694557][ T10] ipv6_find_idev+0x102/0x170 [ 4079.694557][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.694557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.694557][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.694557][ T10] netlink_unicast+0x449/0x710 [ 4079.694557][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.694557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.694557][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.694557][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.694557][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.694557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.694557][ T10] [ 4079.696774][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4079.697062][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4079.697062][ T10] netdev_get_by_index+0x5e/0x80 [ 4079.697062][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4079.697062][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4079.697062][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4079.697062][ T10] ipv6_add_addr+0x411/0x2000 [ 4079.697062][ T10] inet6_addr_add+0x30e/0xa40 [ 4079.697062][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4079.697062][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.697062][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.697062][ T10] netlink_unicast+0x449/0x710 [ 4079.697062][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.697062][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.697062][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.697062][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.697062][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.697062][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.697062][ T10] [ 4079.699439][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4079.699439][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4079.699439][ T10] ipv6_find_idev+0x102/0x170 [ 4079.699439][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.699439][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.699439][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.699439][ T10] netlink_unicast+0x449/0x710 [ 4079.699439][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.699439][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.699439][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.699439][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.699439][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.699439][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.699439][ T10] [ 4079.701327][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4079.701327][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4079.701327][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4079.701327][ T10] ipv6_find_idev+0x102/0x170 [ 4079.701327][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4079.701327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4079.701327][ T10] netlink_rcv_skb+0x130/0x360 [ 4079.701327][ T10] netlink_unicast+0x449/0x710 [ 4079.701327][ T10] netlink_sendmsg+0x723/0xbe0 [ 4079.701327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4079.701327][ T10] ___sys_sendmsg+0xee/0x170 [ 4079.701327][ T10] __sys_sendmsg+0xcd/0x170 [ 4079.701327][ T10] do_syscall_64+0xc6/0x1e0 [ 4079.701327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4079.701327][ T10] [ 4089.939711][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4089.940231][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4089.940231][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.940231][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.940231][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.940231][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.940231][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.940231][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.940231][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.940231][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.940231][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.940231][ T10] netlink_unicast+0x449/0x710 [ 4089.940231][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.940231][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.940231][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.940231][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.940231][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.940231][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.940231][ T10] [ 4089.942275][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4089.942275][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.942275][ T10] ipv6_find_idev+0x102/0x170 [ 4089.942275][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.942275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.942275][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.942275][ T10] netlink_unicast+0x449/0x710 [ 4089.942275][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.942275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.942275][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.942275][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.942275][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.942275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.942275][ T10] [ 4089.943840][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4089.943840][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.943840][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.943840][ T10] ipv6_find_idev+0x102/0x170 [ 4089.943840][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.943840][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.943840][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.943840][ T10] netlink_unicast+0x449/0x710 [ 4089.943840][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.943840][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.943840][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.943840][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.943840][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.943840][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.943840][ T10] [ 4089.945553][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4089.945841][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4089.945841][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.945841][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.945841][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.945841][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.945841][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.945841][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.945841][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.945841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.945841][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.945841][ T10] netlink_unicast+0x449/0x710 [ 4089.945841][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.945841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.945841][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.945841][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.945841][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.945841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.945841][ T10] [ 4089.947848][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4089.947848][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.947848][ T10] ipv6_find_idev+0x102/0x170 [ 4089.947848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.947848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.947848][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.947848][ T10] netlink_unicast+0x449/0x710 [ 4089.947848][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.947848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.947848][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.947848][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.947848][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.947848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.947848][ T10] [ 4089.949403][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4089.949403][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.949403][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.949403][ T10] ipv6_find_idev+0x102/0x170 [ 4089.949403][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.949403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.949403][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.949403][ T10] netlink_unicast+0x449/0x710 [ 4089.949403][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.949403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.949403][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.949403][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.949403][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.949403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.949403][ T10] [ 4089.951109][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4089.951385][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4089.951385][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.951385][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.951385][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.951385][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.951385][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.951385][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.951385][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.951385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.951385][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.951385][ T10] netlink_unicast+0x449/0x710 [ 4089.951385][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.951385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.951385][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.951385][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.951385][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.951385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.951385][ T10] [ 4089.953390][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4089.953390][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.953390][ T10] ipv6_find_idev+0x102/0x170 [ 4089.953390][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.953390][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.953390][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.953390][ T10] netlink_unicast+0x449/0x710 [ 4089.953390][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.953390][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.953390][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.953390][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.953390][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.953390][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.953390][ T10] [ 4089.954941][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4089.954941][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.954941][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.954941][ T10] ipv6_find_idev+0x102/0x170 [ 4089.954941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.954941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.954941][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.954941][ T10] netlink_unicast+0x449/0x710 [ 4089.954941][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.954941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.954941][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.954941][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.954941][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.954941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.954941][ T10] [ 4089.956665][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4089.956932][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4089.956932][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.956932][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.956932][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.956932][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.956932][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.956932][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.956932][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.956932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.956932][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.956932][ T10] netlink_unicast+0x449/0x710 [ 4089.956932][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.956932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.956932][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.956932][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.956932][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.956932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.956932][ T10] [ 4089.958950][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4089.958950][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.958950][ T10] ipv6_find_idev+0x102/0x170 [ 4089.958950][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.958950][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.958950][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.958950][ T10] netlink_unicast+0x449/0x710 [ 4089.958950][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.958950][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.958950][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.958950][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.958950][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.958950][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.958950][ T10] [ 4089.960486][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4089.960486][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.960486][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.960486][ T10] ipv6_find_idev+0x102/0x170 [ 4089.960486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.960486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.960486][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.960486][ T10] netlink_unicast+0x449/0x710 [ 4089.960486][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.960486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.960486][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.960486][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.960486][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.960486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.960486][ T10] [ 4089.962586][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4089.963193][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4089.963193][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.963193][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.963193][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.963193][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.963193][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.963193][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.963193][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.963193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.963193][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.963193][ T10] netlink_unicast+0x449/0x710 [ 4089.963193][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.963193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.963193][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.963193][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.963193][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.963193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.963193][ T10] [ 4089.965191][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4089.965191][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.965191][ T10] ipv6_find_idev+0x102/0x170 [ 4089.965191][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.965191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.965191][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.965191][ T10] netlink_unicast+0x449/0x710 [ 4089.965191][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.965191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.965191][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.965191][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.965191][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.965191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.965191][ T10] [ 4089.966731][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4089.966731][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.966731][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.966731][ T10] ipv6_find_idev+0x102/0x170 [ 4089.966731][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.966731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.966731][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.966731][ T10] netlink_unicast+0x449/0x710 [ 4089.966731][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.966731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.966731][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.966731][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.966731][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.966731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.966731][ T10] [ 4089.968435][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4089.968770][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4089.968770][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.968770][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.968770][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.968770][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.968770][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.968770][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.968770][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.968770][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.968770][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.968770][ T10] netlink_unicast+0x449/0x710 [ 4089.968770][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.968770][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.968770][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.968770][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.968770][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.968770][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.968770][ T10] [ 4089.970778][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4089.970778][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.970778][ T10] ipv6_find_idev+0x102/0x170 [ 4089.970778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.970778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.970778][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.970778][ T10] netlink_unicast+0x449/0x710 [ 4089.970778][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.970778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.970778][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.970778][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.970778][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.970778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.970778][ T10] [ 4089.972341][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4089.972341][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.972341][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.972341][ T10] ipv6_find_idev+0x102/0x170 [ 4089.972341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.972341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.972341][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.972341][ T10] netlink_unicast+0x449/0x710 [ 4089.972341][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.972341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.972341][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.972341][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.972341][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.972341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.972341][ T10] [ 4089.974223][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4089.974537][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4089.974537][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.974537][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.974537][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.974537][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.974537][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.974537][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.974537][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.974537][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.974537][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.974537][ T10] netlink_unicast+0x449/0x710 [ 4089.974537][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.974537][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.974537][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.974537][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.974537][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.974537][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.974537][ T10] [ 4089.976684][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4089.976684][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.976684][ T10] ipv6_find_idev+0x102/0x170 [ 4089.976684][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.976684][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.976684][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.976684][ T10] netlink_unicast+0x449/0x710 [ 4089.976684][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.976684][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.976684][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.976684][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.976684][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.976684][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.976684][ T10] [ 4089.978367][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4089.978367][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.978367][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.978367][ T10] ipv6_find_idev+0x102/0x170 [ 4089.978367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.978367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.978367][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.978367][ T10] netlink_unicast+0x449/0x710 [ 4089.978367][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.978367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.978367][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.978367][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.978367][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.978367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.978367][ T10] [ 4089.980161][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4089.980481][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4089.980481][ T10] netdev_get_by_index+0x5e/0x80 [ 4089.980481][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4089.980481][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4089.980481][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4089.980481][ T10] ipv6_add_addr+0x411/0x2000 [ 4089.980481][ T10] inet6_addr_add+0x30e/0xa40 [ 4089.980481][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.980481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.980481][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.980481][ T10] netlink_unicast+0x449/0x710 [ 4089.980481][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.980481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.980481][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.980481][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.980481][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.980481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.980481][ T10] [ 4089.982634][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4089.982634][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4089.982634][ T10] ipv6_find_idev+0x102/0x170 [ 4089.982634][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.982634][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.982634][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.982634][ T10] netlink_unicast+0x449/0x710 [ 4089.982634][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.982634][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.982634][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.982634][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.982634][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.982634][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.982634][ T10] [ 4089.984244][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4089.984244][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4089.984244][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4089.984244][ T10] ipv6_find_idev+0x102/0x170 [ 4089.984244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.984244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.984244][ T10] netlink_rcv_skb+0x130/0x360 [ 4089.984244][ T10] netlink_unicast+0x449/0x710 [ 4089.984244][ T10] netlink_sendmsg+0x723/0xbe0 [ 4089.984244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4089.984244][ T10] ___sys_sendmsg+0xee/0x170 [ 4089.984244][ T10] __sys_sendmsg+0xcd/0x170 [ 4089.984244][ T10] do_syscall_64+0xc6/0x1e0 [ 4089.984244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.984244][ T10] [ 4100.195769][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4100.196279][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4100.196279][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.196279][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.196279][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.196279][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.196279][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.196279][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.196279][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.196279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.196279][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.196279][ T10] netlink_unicast+0x449/0x710 [ 4100.196279][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.196279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.196279][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.196279][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.196279][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.196279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.196279][ T10] [ 4100.198531][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4100.198531][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.198531][ T10] ipv6_find_idev+0x102/0x170 [ 4100.198531][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.198531][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.198531][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.198531][ T10] netlink_unicast+0x449/0x710 [ 4100.198531][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.198531][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.198531][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.198531][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.198531][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.198531][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.198531][ T10] [ 4100.200248][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4100.200248][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.200248][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.200248][ T10] ipv6_find_idev+0x102/0x170 [ 4100.200248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.200248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.200248][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.200248][ T10] netlink_unicast+0x449/0x710 [ 4100.200248][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.200248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.200248][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.200248][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.200248][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.200248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.200248][ T10] [ 4100.202141][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4100.202442][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4100.202442][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.202442][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.202442][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.202442][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.202442][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.202442][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.202442][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.202442][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.202442][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.202442][ T10] netlink_unicast+0x449/0x710 [ 4100.202442][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.202442][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.202442][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.202442][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.202442][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.202442][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.202442][ T10] [ 4100.204671][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4100.204671][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.204671][ T10] ipv6_find_idev+0x102/0x170 [ 4100.204671][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.204671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.204671][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.204671][ T10] netlink_unicast+0x449/0x710 [ 4100.204671][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.204671][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.204671][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.204671][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.204671][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.204671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.204671][ T10] [ 4100.206381][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4100.206381][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.206381][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.206381][ T10] ipv6_find_idev+0x102/0x170 [ 4100.206381][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.206381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.206381][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.206381][ T10] netlink_unicast+0x449/0x710 [ 4100.206381][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.206381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.206381][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.206381][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.206381][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.206381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.206381][ T10] [ 4100.208252][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4100.208542][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4100.208542][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.208542][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.208542][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.208542][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.208542][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.208542][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.208542][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.208542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.208542][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.208542][ T10] netlink_unicast+0x449/0x710 [ 4100.208542][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.208542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.208542][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.208542][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.208542][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.208542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.208542][ T10] [ 4100.210762][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4100.210762][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.210762][ T10] ipv6_find_idev+0x102/0x170 [ 4100.210762][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.210762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.210762][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.210762][ T10] netlink_unicast+0x449/0x710 [ 4100.210762][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.210762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.210762][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.210762][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.210762][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.210762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.210762][ T10] [ 4100.212479][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4100.212479][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.212479][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.212479][ T10] ipv6_find_idev+0x102/0x170 [ 4100.212479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.212479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.212479][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.212479][ T10] netlink_unicast+0x449/0x710 [ 4100.212479][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.212479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.212479][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.212479][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.212479][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.212479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.212479][ T10] [ 4100.214344][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4100.214633][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4100.214633][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.214633][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.214633][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.214633][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.214633][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.214633][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.214633][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.214633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.214633][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.214633][ T10] netlink_unicast+0x449/0x710 [ 4100.214633][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.214633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.214633][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.214633][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.214633][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.214633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.214633][ T10] [ 4100.216869][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4100.216869][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.216869][ T10] ipv6_find_idev+0x102/0x170 [ 4100.216869][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.216869][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.216869][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.216869][ T10] netlink_unicast+0x449/0x710 [ 4100.216869][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.216869][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.216869][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.216869][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.216869][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.216869][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.216869][ T10] [ 4100.218590][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4100.218590][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.218590][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.218590][ T10] ipv6_find_idev+0x102/0x170 [ 4100.218590][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.218590][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.218590][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.218590][ T10] netlink_unicast+0x449/0x710 [ 4100.218590][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.218590][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.218590][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.218590][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.218590][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.218590][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.218590][ T10] [ 4100.220869][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4100.221162][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4100.221162][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.221162][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.221162][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.221162][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.221162][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.221162][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.221162][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.221162][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.221162][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.221162][ T10] netlink_unicast+0x449/0x710 [ 4100.221162][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.221162][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.221162][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.221162][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.221162][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.221162][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.221162][ T10] [ 4100.223367][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4100.223367][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.223367][ T10] ipv6_find_idev+0x102/0x170 [ 4100.223367][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.223367][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.223367][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.223367][ T10] netlink_unicast+0x449/0x710 [ 4100.223367][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.223367][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.223367][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.223367][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.223367][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.223367][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.223367][ T10] [ 4100.225075][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4100.225075][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.225075][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.225075][ T10] ipv6_find_idev+0x102/0x170 [ 4100.225075][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.225075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.225075][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.225075][ T10] netlink_unicast+0x449/0x710 [ 4100.225075][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.225075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.225075][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.225075][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.225075][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.225075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.225075][ T10] [ 4100.226987][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4100.227274][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4100.227274][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.227274][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.227274][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.227274][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.227274][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.227274][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.227274][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.227274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.227274][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.227274][ T10] netlink_unicast+0x449/0x710 [ 4100.227274][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.227274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.227274][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.227274][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.227274][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.227274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.227274][ T10] [ 4100.229698][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4100.229698][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.229698][ T10] ipv6_find_idev+0x102/0x170 [ 4100.229698][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.229698][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.229698][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.229698][ T10] netlink_unicast+0x449/0x710 [ 4100.229698][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.229698][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.229698][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.229698][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.229698][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.229698][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.229698][ T10] [ 4100.231596][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4100.231596][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.231596][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.231596][ T10] ipv6_find_idev+0x102/0x170 [ 4100.231596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.231596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.231596][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.231596][ T10] netlink_unicast+0x449/0x710 [ 4100.231596][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.231596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.231596][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.231596][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.231596][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.231596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.231596][ T10] [ 4100.233693][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4100.233984][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4100.233984][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.233984][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.233984][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.233984][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.233984][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.233984][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.233984][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.233984][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.233984][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.233984][ T10] netlink_unicast+0x449/0x710 [ 4100.233984][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.233984][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.233984][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.233984][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.233984][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.233984][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.233984][ T10] [ 4100.236422][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4100.236422][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.236422][ T10] ipv6_find_idev+0x102/0x170 [ 4100.236422][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.236422][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.236422][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.236422][ T10] netlink_unicast+0x449/0x710 [ 4100.236422][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.236422][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.236422][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.236422][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.236422][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.236422][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.236422][ T10] [ 4100.238292][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4100.238292][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.238292][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.238292][ T10] ipv6_find_idev+0x102/0x170 [ 4100.238292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.238292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.238292][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.238292][ T10] netlink_unicast+0x449/0x710 [ 4100.238292][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.238292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.238292][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.238292][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.238292][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.238292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.238292][ T10] [ 4100.240427][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4100.240777][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4100.240777][ T10] netdev_get_by_index+0x5e/0x80 [ 4100.240777][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4100.240777][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4100.240777][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4100.240777][ T10] ipv6_add_addr+0x411/0x2000 [ 4100.240777][ T10] inet6_addr_add+0x30e/0xa40 [ 4100.240777][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4100.240777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.240777][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.240777][ T10] netlink_unicast+0x449/0x710 [ 4100.240777][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.240777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.240777][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.240777][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.240777][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.240777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.240777][ T10] [ 4100.243198][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4100.243198][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4100.243198][ T10] ipv6_find_idev+0x102/0x170 [ 4100.243198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.243198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.243198][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.243198][ T10] netlink_unicast+0x449/0x710 [ 4100.243198][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.243198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.243198][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.243198][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.243198][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.243198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.243198][ T10] [ 4100.245104][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4100.245104][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4100.245104][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4100.245104][ T10] ipv6_find_idev+0x102/0x170 [ 4100.245104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4100.245104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4100.245104][ T10] netlink_rcv_skb+0x130/0x360 [ 4100.245104][ T10] netlink_unicast+0x449/0x710 [ 4100.245104][ T10] netlink_sendmsg+0x723/0xbe0 [ 4100.245104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4100.245104][ T10] ___sys_sendmsg+0xee/0x170 [ 4100.245104][ T10] __sys_sendmsg+0xcd/0x170 [ 4100.245104][ T10] do_syscall_64+0xc6/0x1e0 [ 4100.245104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4100.245104][ T10] [ 4110.483798][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4110.484296][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4110.484296][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.484296][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.484296][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.484296][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.484296][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.484296][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.484296][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.484296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.484296][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.484296][ T10] netlink_unicast+0x449/0x710 [ 4110.484296][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.484296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.484296][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.484296][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.484296][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.484296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.484296][ T10] [ 4110.486541][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4110.486541][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.486541][ T10] ipv6_find_idev+0x102/0x170 [ 4110.486541][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.486541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.486541][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.486541][ T10] netlink_unicast+0x449/0x710 [ 4110.486541][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.486541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.486541][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.486541][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.486541][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.486541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.486541][ T10] [ 4110.488245][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4110.488245][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.488245][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.488245][ T10] ipv6_find_idev+0x102/0x170 [ 4110.488245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.488245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.488245][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.488245][ T10] netlink_unicast+0x449/0x710 [ 4110.488245][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.488245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.488245][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.488245][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.488245][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.488245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.488245][ T10] [ 4110.490125][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4110.490423][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4110.490423][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.490423][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.490423][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.490423][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.490423][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.490423][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.490423][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.490423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.490423][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.490423][ T10] netlink_unicast+0x449/0x710 [ 4110.490423][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.490423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.490423][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.490423][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.490423][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.490423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.490423][ T10] [ 4110.492641][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4110.492641][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.492641][ T10] ipv6_find_idev+0x102/0x170 [ 4110.492641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.492641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.492641][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.492641][ T10] netlink_unicast+0x449/0x710 [ 4110.492641][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.492641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.492641][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.492641][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.492641][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.492641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.492641][ T10] [ 4110.494342][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4110.494342][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.494342][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.494342][ T10] ipv6_find_idev+0x102/0x170 [ 4110.494342][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.494342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.494342][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.494342][ T10] netlink_unicast+0x449/0x710 [ 4110.494342][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.494342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.494342][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.494342][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.494342][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.494342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.494342][ T10] [ 4110.496202][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4110.496505][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4110.496505][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.496505][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.496505][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.496505][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.496505][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.496505][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.496505][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.496505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.496505][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.496505][ T10] netlink_unicast+0x449/0x710 [ 4110.496505][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.496505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.496505][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.496505][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.496505][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.496505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.496505][ T10] [ 4110.498709][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4110.498709][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.498709][ T10] ipv6_find_idev+0x102/0x170 [ 4110.498709][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.498709][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.498709][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.498709][ T10] netlink_unicast+0x449/0x710 [ 4110.498709][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.498709][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.498709][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.498709][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.498709][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.498709][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.498709][ T10] [ 4110.500410][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4110.500410][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.500410][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.500410][ T10] ipv6_find_idev+0x102/0x170 [ 4110.500410][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.500410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.500410][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.500410][ T10] netlink_unicast+0x449/0x710 [ 4110.500410][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.500410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.500410][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.500410][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.500410][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.500410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.500410][ T10] [ 4110.502276][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4110.502564][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4110.502564][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.502564][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.502564][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.502564][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.502564][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.502564][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.502564][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.502564][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.502564][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.502564][ T10] netlink_unicast+0x449/0x710 [ 4110.502564][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.502564][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.502564][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.502564][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.502564][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.502564][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.502564][ T10] [ 4110.504762][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4110.504762][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.504762][ T10] ipv6_find_idev+0x102/0x170 [ 4110.504762][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.504762][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.504762][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.504762][ T10] netlink_unicast+0x449/0x710 [ 4110.504762][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.504762][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.504762][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.504762][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.504762][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.504762][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.504762][ T10] [ 4110.506455][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4110.506455][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.506455][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.506455][ T10] ipv6_find_idev+0x102/0x170 [ 4110.506455][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.506455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.506455][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.506455][ T10] netlink_unicast+0x449/0x710 [ 4110.506455][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.506455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.506455][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.506455][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.506455][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.506455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.506455][ T10] [ 4110.508746][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4110.509035][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4110.509035][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.509035][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.509035][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.509035][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.509035][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.509035][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.509035][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.509035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.509035][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.509035][ T10] netlink_unicast+0x449/0x710 [ 4110.509035][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.509035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.509035][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.509035][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.509035][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.509035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.509035][ T10] [ 4110.511238][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4110.511238][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.511238][ T10] ipv6_find_idev+0x102/0x170 [ 4110.511238][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.511238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.511238][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.511238][ T10] netlink_unicast+0x449/0x710 [ 4110.511238][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.511238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.511238][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.511238][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.511238][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.511238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.511238][ T10] [ 4110.512937][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4110.512937][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.512937][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.512937][ T10] ipv6_find_idev+0x102/0x170 [ 4110.512937][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.512937][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.512937][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.512937][ T10] netlink_unicast+0x449/0x710 [ 4110.512937][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.512937][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.512937][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.512937][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.512937][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.512937][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.512937][ T10] [ 4110.514833][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4110.515120][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4110.515120][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.515120][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.515120][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.515120][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.515120][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.515120][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.515120][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.515120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.515120][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.515120][ T10] netlink_unicast+0x449/0x710 [ 4110.515120][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.515120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.515120][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.515120][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.515120][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.515120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.515120][ T10] [ 4110.517519][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4110.517519][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.517519][ T10] ipv6_find_idev+0x102/0x170 [ 4110.517519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.517519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.517519][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.517519][ T10] netlink_unicast+0x449/0x710 [ 4110.517519][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.517519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.517519][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.517519][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.517519][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.517519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.517519][ T10] [ 4110.519447][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4110.519447][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.519447][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.519447][ T10] ipv6_find_idev+0x102/0x170 [ 4110.519447][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.519447][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.519447][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.519447][ T10] netlink_unicast+0x449/0x710 [ 4110.519447][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.519447][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.519447][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.519447][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.519447][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.519447][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.519447][ T10] [ 4110.521531][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4110.521873][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4110.521873][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.521873][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.521873][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.521873][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.521873][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.521873][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.521873][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.521873][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.521873][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.521873][ T10] netlink_unicast+0x449/0x710 [ 4110.521873][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.521873][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.521873][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.521873][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.521873][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.521873][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.521873][ T10] [ 4110.524255][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4110.524255][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.524255][ T10] ipv6_find_idev+0x102/0x170 [ 4110.524255][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.524255][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.524255][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.524255][ T10] netlink_unicast+0x449/0x710 [ 4110.524255][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.524255][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.524255][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.524255][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.524255][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.524255][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.524255][ T10] [ 4110.526127][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4110.526127][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.526127][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.526127][ T10] ipv6_find_idev+0x102/0x170 [ 4110.526127][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.526127][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.526127][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.526127][ T10] netlink_unicast+0x449/0x710 [ 4110.526127][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.526127][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.526127][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.526127][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.526127][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.526127][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.526127][ T10] [ 4110.528190][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4110.528478][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4110.528478][ T10] netdev_get_by_index+0x5e/0x80 [ 4110.528478][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4110.528478][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4110.528478][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4110.528478][ T10] ipv6_add_addr+0x411/0x2000 [ 4110.528478][ T10] inet6_addr_add+0x30e/0xa40 [ 4110.528478][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4110.528478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.528478][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.528478][ T10] netlink_unicast+0x449/0x710 [ 4110.528478][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.528478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.528478][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.528478][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.528478][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.528478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.528478][ T10] [ 4110.530985][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4110.530985][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4110.530985][ T10] ipv6_find_idev+0x102/0x170 [ 4110.530985][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.530985][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.530985][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.530985][ T10] netlink_unicast+0x449/0x710 [ 4110.530985][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.530985][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.530985][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.530985][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.530985][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.530985][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.530985][ T10] [ 4110.532878][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4110.532878][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4110.532878][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4110.532878][ T10] ipv6_find_idev+0x102/0x170 [ 4110.532878][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4110.532878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4110.532878][ T10] netlink_rcv_skb+0x130/0x360 [ 4110.532878][ T10] netlink_unicast+0x449/0x710 [ 4110.532878][ T10] netlink_sendmsg+0x723/0xbe0 [ 4110.532878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4110.532878][ T10] ___sys_sendmsg+0xee/0x170 [ 4110.532878][ T10] __sys_sendmsg+0xcd/0x170 [ 4110.532878][ T10] do_syscall_64+0xc6/0x1e0 [ 4110.532878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4110.532878][ T10] [ 4120.603767][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4120.604186][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4120.604186][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.604186][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.604186][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.604186][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.604186][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.604186][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.604186][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.604186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.604186][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.604186][ T10] netlink_unicast+0x449/0x710 [ 4120.604186][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.604186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.604186][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.604186][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.604186][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.604186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.604186][ T10] [ 4120.606979][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4120.606979][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.606979][ T10] ipv6_find_idev+0x102/0x170 [ 4120.606979][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.606979][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.606979][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.606979][ T10] netlink_unicast+0x449/0x710 [ 4120.606979][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.606979][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.606979][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.606979][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.606979][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.606979][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.606979][ T10] [ 4120.608701][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4120.608701][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.608701][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.608701][ T10] ipv6_find_idev+0x102/0x170 [ 4120.608701][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.608701][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.608701][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.608701][ T10] netlink_unicast+0x449/0x710 [ 4120.608701][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.608701][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.608701][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.608701][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.608701][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.608701][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.608701][ T10] [ 4120.610600][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4120.610917][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4120.610917][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.610917][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.610917][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.610917][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.610917][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.610917][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.610917][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.610917][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.610917][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.610917][ T10] netlink_unicast+0x449/0x710 [ 4120.610917][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.610917][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.610917][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.610917][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.610917][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.610917][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.610917][ T10] [ 4120.613164][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4120.613164][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.613164][ T10] ipv6_find_idev+0x102/0x170 [ 4120.613164][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.613164][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.613164][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.613164][ T10] netlink_unicast+0x449/0x710 [ 4120.613164][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.613164][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.613164][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.613164][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.613164][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.613164][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.613164][ T10] [ 4120.614884][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4120.614884][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.614884][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.614884][ T10] ipv6_find_idev+0x102/0x170 [ 4120.614884][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.614884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.614884][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.614884][ T10] netlink_unicast+0x449/0x710 [ 4120.614884][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.614884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.614884][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.614884][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.614884][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.614884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.614884][ T10] [ 4120.616757][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4120.617050][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4120.617050][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.617050][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.617050][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.617050][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.617050][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.617050][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.617050][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.617050][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.617050][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.617050][ T10] netlink_unicast+0x449/0x710 [ 4120.617050][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.617050][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.617050][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.617050][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.617050][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.617050][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.617050][ T10] [ 4120.619449][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4120.619449][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.619449][ T10] ipv6_find_idev+0x102/0x170 [ 4120.619449][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.619449][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.619449][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.619449][ T10] netlink_unicast+0x449/0x710 [ 4120.619449][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.619449][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.619449][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.619449][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.619449][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.619449][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.619449][ T10] [ 4120.621235][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4120.621235][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.621235][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.621235][ T10] ipv6_find_idev+0x102/0x170 [ 4120.621235][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.621235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.621235][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.621235][ T10] netlink_unicast+0x449/0x710 [ 4120.621235][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.621235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.621235][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.621235][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.621235][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.621235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.621235][ T10] [ 4120.623192][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4120.623493][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4120.623493][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.623493][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.623493][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.623493][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.623493][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.623493][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.623493][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.623493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.623493][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.623493][ T10] netlink_unicast+0x449/0x710 [ 4120.623493][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.623493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.623493][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.623493][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.623493][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.623493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.623493][ T10] [ 4120.625819][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4120.625819][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.625819][ T10] ipv6_find_idev+0x102/0x170 [ 4120.625819][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.625819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.625819][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.625819][ T10] netlink_unicast+0x449/0x710 [ 4120.625819][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.625819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.625819][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.625819][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.625819][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.625819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.625819][ T10] [ 4120.627641][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4120.627641][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.627641][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.627641][ T10] ipv6_find_idev+0x102/0x170 [ 4120.627641][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.627641][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.627641][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.627641][ T10] netlink_unicast+0x449/0x710 [ 4120.627641][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.627641][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.627641][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.627641][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.627641][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.627641][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.627641][ T10] [ 4120.630021][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4120.630327][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4120.630327][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.630327][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.630327][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.630327][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.630327][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.630327][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.630327][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.630327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.630327][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.630327][ T10] netlink_unicast+0x449/0x710 [ 4120.630327][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.630327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.630327][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.630327][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.630327][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.630327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.630327][ T10] [ 4120.632652][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4120.632652][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.632652][ T10] ipv6_find_idev+0x102/0x170 [ 4120.632652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.632652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.632652][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.632652][ T10] netlink_unicast+0x449/0x710 [ 4120.632652][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.632652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.632652][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.632652][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.632652][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.632652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.632652][ T10] [ 4120.634467][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4120.634467][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.634467][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.634467][ T10] ipv6_find_idev+0x102/0x170 [ 4120.634467][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.634467][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.634467][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.634467][ T10] netlink_unicast+0x449/0x710 [ 4120.634467][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.634467][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.634467][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.634467][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.634467][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.634467][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.634467][ T10] [ 4120.636383][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4120.636673][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4120.636673][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.636673][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.636673][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.636673][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.636673][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.636673][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.636673][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.636673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.636673][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.636673][ T10] netlink_unicast+0x449/0x710 [ 4120.636673][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.636673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.636673][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.636673][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.636673][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.636673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.636673][ T10] [ 4120.639087][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4120.639087][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.639087][ T10] ipv6_find_idev+0x102/0x170 [ 4120.639087][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.639087][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.639087][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.639087][ T10] netlink_unicast+0x449/0x710 [ 4120.639087][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.639087][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.639087][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.639087][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.639087][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.639087][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.639087][ T10] [ 4120.641075][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4120.641075][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.641075][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.641075][ T10] ipv6_find_idev+0x102/0x170 [ 4120.641075][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.641075][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.641075][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.641075][ T10] netlink_unicast+0x449/0x710 [ 4120.641075][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.641075][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.641075][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.641075][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.641075][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.641075][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.641075][ T10] [ 4120.643172][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4120.643461][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4120.643461][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.643461][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.643461][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.643461][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.643461][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.643461][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.643461][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.643461][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.643461][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.643461][ T10] netlink_unicast+0x449/0x710 [ 4120.643461][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.643461][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.643461][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.643461][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.643461][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.643461][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.643461][ T10] [ 4120.645861][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4120.645861][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.645861][ T10] ipv6_find_idev+0x102/0x170 [ 4120.645861][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.645861][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.645861][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.645861][ T10] netlink_unicast+0x449/0x710 [ 4120.645861][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.645861][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.645861][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.645861][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.645861][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.645861][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.645861][ T10] [ 4120.647716][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4120.647716][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.647716][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.647716][ T10] ipv6_find_idev+0x102/0x170 [ 4120.647716][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.647716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.647716][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.647716][ T10] netlink_unicast+0x449/0x710 [ 4120.647716][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.647716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.647716][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.647716][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.647716][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.647716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.647716][ T10] [ 4120.649895][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4120.650182][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4120.650182][ T10] netdev_get_by_index+0x5e/0x80 [ 4120.650182][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4120.650182][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4120.650182][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4120.650182][ T10] ipv6_add_addr+0x411/0x2000 [ 4120.650182][ T10] inet6_addr_add+0x30e/0xa40 [ 4120.650182][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4120.650182][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.650182][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.650182][ T10] netlink_unicast+0x449/0x710 [ 4120.650182][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.650182][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.650182][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.650182][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.650182][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.650182][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.650182][ T10] [ 4120.652654][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4120.652654][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4120.652654][ T10] ipv6_find_idev+0x102/0x170 [ 4120.652654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.652654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.652654][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.652654][ T10] netlink_unicast+0x449/0x710 [ 4120.652654][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.652654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.652654][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.652654][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.652654][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.652654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.652654][ T10] [ 4120.654559][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4120.654559][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4120.654559][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4120.654559][ T10] ipv6_find_idev+0x102/0x170 [ 4120.654559][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4120.654559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4120.654559][ T10] netlink_rcv_skb+0x130/0x360 [ 4120.654559][ T10] netlink_unicast+0x449/0x710 [ 4120.654559][ T10] netlink_sendmsg+0x723/0xbe0 [ 4120.654559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4120.654559][ T10] ___sys_sendmsg+0xee/0x170 [ 4120.654559][ T10] __sys_sendmsg+0xcd/0x170 [ 4120.654559][ T10] do_syscall_64+0xc6/0x1e0 [ 4120.654559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4120.654559][ T10] [ 4130.675800][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4130.676293][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4130.676293][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.676293][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.676293][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.676293][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.676293][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.676293][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.676293][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.676293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.676293][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.676293][ T10] netlink_unicast+0x449/0x710 [ 4130.676293][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.676293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.676293][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.676293][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.676293][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.676293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.676293][ T10] [ 4130.678556][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4130.678556][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.678556][ T10] ipv6_find_idev+0x102/0x170 [ 4130.678556][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.678556][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.678556][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.678556][ T10] netlink_unicast+0x449/0x710 [ 4130.678556][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.678556][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.678556][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.678556][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.678556][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.678556][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.678556][ T10] [ 4130.680273][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4130.680273][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.680273][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.680273][ T10] ipv6_find_idev+0x102/0x170 [ 4130.680273][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.680273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.680273][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.680273][ T10] netlink_unicast+0x449/0x710 [ 4130.680273][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.680273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.680273][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.680273][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.680273][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.680273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.680273][ T10] [ 4130.682196][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4130.682505][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4130.682505][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.682505][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.682505][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.682505][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.682505][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.682505][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.682505][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.682505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.682505][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.682505][ T10] netlink_unicast+0x449/0x710 [ 4130.682505][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.682505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.682505][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.682505][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.682505][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.682505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.682505][ T10] [ 4130.684758][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4130.684758][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.684758][ T10] ipv6_find_idev+0x102/0x170 [ 4130.684758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.684758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.684758][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.684758][ T10] netlink_unicast+0x449/0x710 [ 4130.684758][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.684758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.684758][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.684758][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.684758][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.684758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.684758][ T10] [ 4130.686484][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4130.686484][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.686484][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.686484][ T10] ipv6_find_idev+0x102/0x170 [ 4130.686484][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.686484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.686484][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.686484][ T10] netlink_unicast+0x449/0x710 [ 4130.686484][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.686484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.686484][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.686484][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.686484][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.686484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.686484][ T10] [ 4130.688396][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4130.688707][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4130.688707][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.688707][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.688707][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.688707][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.688707][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.688707][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.688707][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.688707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.688707][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.688707][ T10] netlink_unicast+0x449/0x710 [ 4130.688707][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.688707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.688707][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.688707][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.688707][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.688707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.688707][ T10] [ 4130.690941][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4130.690941][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.690941][ T10] ipv6_find_idev+0x102/0x170 [ 4130.690941][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.690941][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.690941][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.690941][ T10] netlink_unicast+0x449/0x710 [ 4130.690941][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.690941][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.690941][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.690941][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.690941][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.690941][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.690941][ T10] [ 4130.692662][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4130.692662][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.692662][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.692662][ T10] ipv6_find_idev+0x102/0x170 [ 4130.692662][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.692662][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.692662][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.692662][ T10] netlink_unicast+0x449/0x710 [ 4130.692662][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.692662][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.692662][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.692662][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.692662][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.692662][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.692662][ T10] [ 4130.694545][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4130.695274][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4130.695274][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.695274][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.695274][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.695274][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.695274][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.695274][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.695274][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.695274][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.695274][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.695274][ T10] netlink_unicast+0x449/0x710 [ 4130.695274][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.695274][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.695274][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.695274][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.695274][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.695274][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.695274][ T10] [ 4130.697472][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4130.697472][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.697472][ T10] ipv6_find_idev+0x102/0x170 [ 4130.697472][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.697472][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.697472][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.697472][ T10] netlink_unicast+0x449/0x710 [ 4130.697472][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.697472][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.697472][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.697472][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.697472][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.697472][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.697472][ T10] [ 4130.699167][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4130.699167][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.699167][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.699167][ T10] ipv6_find_idev+0x102/0x170 [ 4130.699167][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.699167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.699167][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.699167][ T10] netlink_unicast+0x449/0x710 [ 4130.699167][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.699167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.699167][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.699167][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.699167][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.699167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.699167][ T10] [ 4130.701095][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4130.701380][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4130.701380][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.701380][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.701380][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.701380][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.701380][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.701380][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.701380][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.701380][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.701380][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.701380][ T10] netlink_unicast+0x449/0x710 [ 4130.701380][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.701380][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.701380][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.701380][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.701380][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.701380][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.701380][ T10] [ 4130.703706][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4130.703706][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.703706][ T10] ipv6_find_idev+0x102/0x170 [ 4130.703706][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.703706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.703706][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.703706][ T10] netlink_unicast+0x449/0x710 [ 4130.703706][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.703706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.703706][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.703706][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.703706][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.703706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.703706][ T10] [ 4130.705487][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4130.705487][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.705487][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.705487][ T10] ipv6_find_idev+0x102/0x170 [ 4130.705487][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.705487][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.705487][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.705487][ T10] netlink_unicast+0x449/0x710 [ 4130.705487][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.705487][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.705487][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.705487][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.705487][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.705487][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.705487][ T10] [ 4130.707486][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4130.707830][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4130.707830][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.707830][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.707830][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.707830][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.707830][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.707830][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.707830][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.707830][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.707830][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.707830][ T10] netlink_unicast+0x449/0x710 [ 4130.707830][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.707830][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.707830][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.707830][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.707830][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.707830][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.707830][ T10] [ 4130.710112][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4130.710112][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.710112][ T10] ipv6_find_idev+0x102/0x170 [ 4130.710112][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.710112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.710112][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.710112][ T10] netlink_unicast+0x449/0x710 [ 4130.710112][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.710112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.710112][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.710112][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.710112][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.710112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.710112][ T10] [ 4130.712003][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4130.712003][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.712003][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.712003][ T10] ipv6_find_idev+0x102/0x170 [ 4130.712003][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.712003][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.712003][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.712003][ T10] netlink_unicast+0x449/0x710 [ 4130.712003][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.712003][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.712003][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.712003][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.712003][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.712003][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.712003][ T10] [ 4130.714206][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4130.714500][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4130.714500][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.714500][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.714500][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.714500][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.714500][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.714500][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.714500][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.714500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.714500][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.714500][ T10] netlink_unicast+0x449/0x710 [ 4130.714500][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.714500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.714500][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.714500][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.714500][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.714500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.714500][ T10] [ 4130.716887][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4130.716887][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.716887][ T10] ipv6_find_idev+0x102/0x170 [ 4130.716887][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.716887][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.716887][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.716887][ T10] netlink_unicast+0x449/0x710 [ 4130.716887][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.716887][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.716887][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.716887][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.716887][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.716887][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.716887][ T10] [ 4130.718768][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4130.718768][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.718768][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.718768][ T10] ipv6_find_idev+0x102/0x170 [ 4130.718768][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.718768][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.718768][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.718768][ T10] netlink_unicast+0x449/0x710 [ 4130.718768][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.718768][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.718768][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.718768][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.718768][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.718768][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.718768][ T10] [ 4130.720905][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4130.721251][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4130.721251][ T10] netdev_get_by_index+0x5e/0x80 [ 4130.721251][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4130.721251][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4130.721251][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4130.721251][ T10] ipv6_add_addr+0x411/0x2000 [ 4130.721251][ T10] inet6_addr_add+0x30e/0xa40 [ 4130.721251][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4130.721251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.721251][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.721251][ T10] netlink_unicast+0x449/0x710 [ 4130.721251][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.721251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.721251][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.721251][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.721251][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.721251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.721251][ T10] [ 4130.723698][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4130.723698][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4130.723698][ T10] ipv6_find_idev+0x102/0x170 [ 4130.723698][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.723698][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.723698][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.723698][ T10] netlink_unicast+0x449/0x710 [ 4130.723698][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.723698][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.723698][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.723698][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.723698][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.723698][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.723698][ T10] [ 4130.725583][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4130.725583][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4130.725583][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4130.725583][ T10] ipv6_find_idev+0x102/0x170 [ 4130.725583][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4130.725583][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4130.725583][ T10] netlink_rcv_skb+0x130/0x360 [ 4130.725583][ T10] netlink_unicast+0x449/0x710 [ 4130.725583][ T10] netlink_sendmsg+0x723/0xbe0 [ 4130.725583][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4130.725583][ T10] ___sys_sendmsg+0xee/0x170 [ 4130.725583][ T10] __sys_sendmsg+0xcd/0x170 [ 4130.725583][ T10] do_syscall_64+0xc6/0x1e0 [ 4130.725583][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4130.725583][ T10] [ 4140.979759][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4140.980203][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4140.980203][ T10] netdev_get_by_index+0x5e/0x80 [ 4140.980203][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4140.980203][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4140.980203][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4140.980203][ T10] ipv6_add_addr+0x411/0x2000 [ 4140.980203][ T10] inet6_addr_add+0x30e/0xa40 [ 4140.980203][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4140.980203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.980203][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.980203][ T10] netlink_unicast+0x449/0x710 [ 4140.980203][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.980203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.980203][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.980203][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.980203][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.980203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.980203][ T10] [ 4140.982243][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4140.982243][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4140.982243][ T10] ipv6_find_idev+0x102/0x170 [ 4140.982243][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.982243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.982243][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.982243][ T10] netlink_unicast+0x449/0x710 [ 4140.982243][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.982243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.982243][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.982243][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.982243][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.982243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.982243][ T10] [ 4140.983954][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4140.983954][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4140.983954][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4140.983954][ T10] ipv6_find_idev+0x102/0x170 [ 4140.983954][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.983954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.983954][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.983954][ T10] netlink_unicast+0x449/0x710 [ 4140.983954][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.983954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.983954][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.983954][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.983954][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.983954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.983954][ T10] [ 4140.985762][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4140.986049][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4140.986049][ T10] netdev_get_by_index+0x5e/0x80 [ 4140.986049][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4140.986049][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4140.986049][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4140.986049][ T10] ipv6_add_addr+0x411/0x2000 [ 4140.986049][ T10] inet6_addr_add+0x30e/0xa40 [ 4140.986049][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4140.986049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.986049][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.986049][ T10] netlink_unicast+0x449/0x710 [ 4140.986049][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.986049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.986049][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.986049][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.986049][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.986049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.986049][ T10] [ 4140.988215][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4140.988215][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4140.988215][ T10] ipv6_find_idev+0x102/0x170 [ 4140.988215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.988215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.988215][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.988215][ T10] netlink_unicast+0x449/0x710 [ 4140.988215][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.988215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.988215][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.988215][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.988215][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.988215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.988215][ T10] [ 4140.989832][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4140.989832][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4140.989832][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4140.989832][ T10] ipv6_find_idev+0x102/0x170 [ 4140.989832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.989832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.989832][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.989832][ T10] netlink_unicast+0x449/0x710 [ 4140.989832][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.989832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.989832][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.989832][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.989832][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.989832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.989832][ T10] [ 4140.991626][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4140.991927][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4140.991927][ T10] netdev_get_by_index+0x5e/0x80 [ 4140.991927][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4140.991927][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4140.991927][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4140.991927][ T10] ipv6_add_addr+0x411/0x2000 [ 4140.991927][ T10] inet6_addr_add+0x30e/0xa40 [ 4140.991927][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4140.991927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.991927][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.991927][ T10] netlink_unicast+0x449/0x710 [ 4140.991927][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.991927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.991927][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.991927][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.991927][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.991927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.991927][ T10] [ 4140.994015][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4140.994015][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4140.994015][ T10] ipv6_find_idev+0x102/0x170 [ 4140.994015][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.994015][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.994015][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.994015][ T10] netlink_unicast+0x449/0x710 [ 4140.994015][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.994015][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.994015][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.994015][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.994015][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.994015][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.994015][ T10] [ 4140.995626][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4140.995626][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4140.995626][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4140.995626][ T10] ipv6_find_idev+0x102/0x170 [ 4140.995626][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.995626][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.995626][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.995626][ T10] netlink_unicast+0x449/0x710 [ 4140.995626][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.995626][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.995626][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.995626][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.995626][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.995626][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.995626][ T10] [ 4140.997399][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4140.997679][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4140.997679][ T10] netdev_get_by_index+0x5e/0x80 [ 4140.997679][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4140.997679][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4140.997679][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4140.997679][ T10] ipv6_add_addr+0x411/0x2000 [ 4140.997679][ T10] inet6_addr_add+0x30e/0xa40 [ 4140.997679][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4140.997679][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.997679][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.997679][ T10] netlink_unicast+0x449/0x710 [ 4140.997679][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.997679][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.997679][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.997679][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.997679][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.997679][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.997679][ T10] [ 4140.999767][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4140.999767][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4140.999767][ T10] ipv6_find_idev+0x102/0x170 [ 4140.999767][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.999767][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.999767][ T10] netlink_rcv_skb+0x130/0x360 [ 4140.999767][ T10] netlink_unicast+0x449/0x710 [ 4140.999767][ T10] netlink_sendmsg+0x723/0xbe0 [ 4140.999767][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4140.999767][ T10] ___sys_sendmsg+0xee/0x170 [ 4140.999767][ T10] __sys_sendmsg+0xcd/0x170 [ 4140.999767][ T10] do_syscall_64+0xc6/0x1e0 [ 4140.999767][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.999767][ T10] [ 4141.001382][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4141.001382][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4141.001382][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4141.001382][ T10] ipv6_find_idev+0x102/0x170 [ 4141.001382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.001382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.001382][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.001382][ T10] netlink_unicast+0x449/0x710 [ 4141.001382][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.001382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.001382][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.001382][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.001382][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.001382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.001382][ T10] [ 4141.003565][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4141.004323][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4141.004323][ T10] netdev_get_by_index+0x5e/0x80 [ 4141.004323][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4141.004323][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4141.004323][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4141.004323][ T10] ipv6_add_addr+0x411/0x2000 [ 4141.004323][ T10] inet6_addr_add+0x30e/0xa40 [ 4141.004323][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4141.004323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.004323][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.004323][ T10] netlink_unicast+0x449/0x710 [ 4141.004323][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.004323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.004323][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.004323][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.004323][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.004323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.004323][ T10] [ 4141.006445][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4141.006445][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4141.006445][ T10] ipv6_find_idev+0x102/0x170 [ 4141.006445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.006445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.006445][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.006445][ T10] netlink_unicast+0x449/0x710 [ 4141.006445][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.006445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.006445][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.006445][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.006445][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.006445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.006445][ T10] [ 4141.008048][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4141.008048][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4141.008048][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4141.008048][ T10] ipv6_find_idev+0x102/0x170 [ 4141.008048][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.008048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.008048][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.008048][ T10] netlink_unicast+0x449/0x710 [ 4141.008048][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.008048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.008048][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.008048][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.008048][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.008048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.008048][ T10] [ 4141.009806][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4141.010082][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4141.010082][ T10] netdev_get_by_index+0x5e/0x80 [ 4141.010082][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4141.010082][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4141.010082][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4141.010082][ T10] ipv6_add_addr+0x411/0x2000 [ 4141.010082][ T10] inet6_addr_add+0x30e/0xa40 [ 4141.010082][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4141.010082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.010082][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.010082][ T10] netlink_unicast+0x449/0x710 [ 4141.010082][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.010082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.010082][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.010082][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.010082][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.010082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.010082][ T10] [ 4141.012187][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4141.012187][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4141.012187][ T10] ipv6_find_idev+0x102/0x170 [ 4141.012187][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.012187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.012187][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.012187][ T10] netlink_unicast+0x449/0x710 [ 4141.012187][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.012187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.012187][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.012187][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.012187][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.012187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.012187][ T10] [ 4141.014033][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4141.014033][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4141.014033][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4141.014033][ T10] ipv6_find_idev+0x102/0x170 [ 4141.014033][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.014033][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.014033][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.014033][ T10] netlink_unicast+0x449/0x710 [ 4141.014033][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.014033][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.014033][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.014033][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.014033][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.014033][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.014033][ T10] [ 4141.016010][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4141.016331][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4141.016331][ T10] netdev_get_by_index+0x5e/0x80 [ 4141.016331][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4141.016331][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4141.016331][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4141.016331][ T10] ipv6_add_addr+0x411/0x2000 [ 4141.016331][ T10] inet6_addr_add+0x30e/0xa40 [ 4141.016331][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4141.016331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.016331][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.016331][ T10] netlink_unicast+0x449/0x710 [ 4141.016331][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.016331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.016331][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.016331][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.016331][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.016331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.016331][ T10] [ 4141.018654][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4141.018654][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4141.018654][ T10] ipv6_find_idev+0x102/0x170 [ 4141.018654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.018654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.018654][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.018654][ T10] netlink_unicast+0x449/0x710 [ 4141.018654][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.018654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.018654][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.018654][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.018654][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.018654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.018654][ T10] [ 4141.020541][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4141.020541][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4141.020541][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4141.020541][ T10] ipv6_find_idev+0x102/0x170 [ 4141.020541][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.020541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.020541][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.020541][ T10] netlink_unicast+0x449/0x710 [ 4141.020541][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.020541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.020541][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.020541][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.020541][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.020541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.020541][ T10] [ 4141.022631][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4141.022967][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4141.022967][ T10] netdev_get_by_index+0x5e/0x80 [ 4141.022967][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4141.022967][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4141.022967][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4141.022967][ T10] ipv6_add_addr+0x411/0x2000 [ 4141.022967][ T10] inet6_addr_add+0x30e/0xa40 [ 4141.022967][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4141.022967][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.022967][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.022967][ T10] netlink_unicast+0x449/0x710 [ 4141.022967][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.022967][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.022967][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.022967][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.022967][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.022967][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.022967][ T10] [ 4141.025244][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4141.025244][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4141.025244][ T10] ipv6_find_idev+0x102/0x170 [ 4141.025244][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.025244][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.025244][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.025244][ T10] netlink_unicast+0x449/0x710 [ 4141.025244][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.025244][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.025244][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.025244][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.025244][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.025244][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.025244][ T10] [ 4141.027031][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4141.027031][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4141.027031][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4141.027031][ T10] ipv6_find_idev+0x102/0x170 [ 4141.027031][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4141.027031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4141.027031][ T10] netlink_rcv_skb+0x130/0x360 [ 4141.027031][ T10] netlink_unicast+0x449/0x710 [ 4141.027031][ T10] netlink_sendmsg+0x723/0xbe0 [ 4141.027031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4141.027031][ T10] ___sys_sendmsg+0xee/0x170 [ 4141.027031][ T10] __sys_sendmsg+0xcd/0x170 [ 4141.027031][ T10] do_syscall_64+0xc6/0x1e0 [ 4141.027031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4141.027031][ T10] [ 4151.195803][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4151.196341][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4151.196341][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.196341][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.196341][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.196341][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.196341][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.196341][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.196341][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.196341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.196341][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.196341][ T10] netlink_unicast+0x449/0x710 [ 4151.196341][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.196341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.196341][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.196341][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.196341][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.196341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.196341][ T10] [ 4151.198451][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4151.198451][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.198451][ T10] ipv6_find_idev+0x102/0x170 [ 4151.198451][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.198451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.198451][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.198451][ T10] netlink_unicast+0x449/0x710 [ 4151.198451][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.198451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.198451][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.198451][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.198451][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.198451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.198451][ T10] [ 4151.200060][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4151.200060][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.200060][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.200060][ T10] ipv6_find_idev+0x102/0x170 [ 4151.200060][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.200060][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.200060][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.200060][ T10] netlink_unicast+0x449/0x710 [ 4151.200060][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.200060][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.200060][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.200060][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.200060][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.200060][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.200060][ T10] [ 4151.201870][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4151.202153][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4151.202153][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.202153][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.202153][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.202153][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.202153][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.202153][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.202153][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.202153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.202153][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.202153][ T10] netlink_unicast+0x449/0x710 [ 4151.202153][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.202153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.202153][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.202153][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.202153][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.202153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.202153][ T10] [ 4151.204239][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4151.204239][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.204239][ T10] ipv6_find_idev+0x102/0x170 [ 4151.204239][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.204239][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.204239][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.204239][ T10] netlink_unicast+0x449/0x710 [ 4151.204239][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.204239][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.204239][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.204239][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.204239][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.204239][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.204239][ T10] [ 4151.205847][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4151.205847][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.205847][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.205847][ T10] ipv6_find_idev+0x102/0x170 [ 4151.205847][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.205847][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.205847][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.205847][ T10] netlink_unicast+0x449/0x710 [ 4151.205847][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.205847][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.205847][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.205847][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.205847][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.205847][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.205847][ T10] [ 4151.207665][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4151.207959][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4151.207959][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.207959][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.207959][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.207959][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.207959][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.207959][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.207959][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.207959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.207959][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.207959][ T10] netlink_unicast+0x449/0x710 [ 4151.207959][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.207959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.207959][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.207959][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.207959][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.207959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.207959][ T10] [ 4151.210043][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4151.210043][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.210043][ T10] ipv6_find_idev+0x102/0x170 [ 4151.210043][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.210043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.210043][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.210043][ T10] netlink_unicast+0x449/0x710 [ 4151.210043][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.210043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.210043][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.210043][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.210043][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.210043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.210043][ T10] [ 4151.211664][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4151.211664][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.211664][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.211664][ T10] ipv6_find_idev+0x102/0x170 [ 4151.211664][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.211664][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.211664][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.211664][ T10] netlink_unicast+0x449/0x710 [ 4151.211664][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.211664][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.211664][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.211664][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.211664][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.211664][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.211664][ T10] [ 4151.213418][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4151.213763][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4151.213763][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.213763][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.213763][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.213763][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.213763][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.213763][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.213763][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.213763][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.213763][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.213763][ T10] netlink_unicast+0x449/0x710 [ 4151.213763][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.213763][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.213763][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.213763][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.213763][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.213763][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.213763][ T10] [ 4151.215827][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4151.215827][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.215827][ T10] ipv6_find_idev+0x102/0x170 [ 4151.215827][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.215827][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.215827][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.215827][ T10] netlink_unicast+0x449/0x710 [ 4151.215827][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.215827][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.215827][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.215827][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.215827][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.215827][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.215827][ T10] [ 4151.217371][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4151.217371][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.217371][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.217371][ T10] ipv6_find_idev+0x102/0x170 [ 4151.217371][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.217371][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.217371][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.217371][ T10] netlink_unicast+0x449/0x710 [ 4151.217371][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.217371][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.217371][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.217371][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.217371][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.217371][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.217371][ T10] [ 4151.219106][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4151.219423][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4151.219423][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.219423][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.219423][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.219423][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.219423][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.219423][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.219423][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.219423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.219423][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.219423][ T10] netlink_unicast+0x449/0x710 [ 4151.219423][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.219423][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.219423][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.219423][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.219423][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.219423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.219423][ T10] [ 4151.221425][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4151.221425][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.221425][ T10] ipv6_find_idev+0x102/0x170 [ 4151.221425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.221425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.221425][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.221425][ T10] netlink_unicast+0x449/0x710 [ 4151.221425][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.221425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.221425][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.221425][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.221425][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.221425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.221425][ T10] [ 4151.222962][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4151.222962][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.222962][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.222962][ T10] ipv6_find_idev+0x102/0x170 [ 4151.222962][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.222962][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.222962][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.222962][ T10] netlink_unicast+0x449/0x710 [ 4151.222962][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.222962][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.222962][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.222962][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.222962][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.222962][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.222962][ T10] [ 4151.224868][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4151.225177][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4151.225177][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.225177][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.225177][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.225177][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.225177][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.225177][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.225177][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.225177][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.225177][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.225177][ T10] netlink_unicast+0x449/0x710 [ 4151.225177][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.225177][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.225177][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.225177][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.225177][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.225177][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.225177][ T10] [ 4151.227358][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4151.227358][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.227358][ T10] ipv6_find_idev+0x102/0x170 [ 4151.227358][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.227358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.227358][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.227358][ T10] netlink_unicast+0x449/0x710 [ 4151.227358][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.227358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.227358][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.227358][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.227358][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.227358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.227358][ T10] [ 4151.229072][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4151.229072][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.229072][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.229072][ T10] ipv6_find_idev+0x102/0x170 [ 4151.229072][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.229072][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.229072][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.229072][ T10] netlink_unicast+0x449/0x710 [ 4151.229072][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.229072][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.229072][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.229072][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.229072][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.229072][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.229072][ T10] [ 4151.231048][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4151.231355][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4151.231355][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.231355][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.231355][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.231355][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.231355][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.231355][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.231355][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.231355][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.231355][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.231355][ T10] netlink_unicast+0x449/0x710 [ 4151.231355][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.231355][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.231355][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.231355][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.231355][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.231355][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.231355][ T10] [ 4151.233542][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4151.233542][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.233542][ T10] ipv6_find_idev+0x102/0x170 [ 4151.233542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.233542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.233542][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.233542][ T10] netlink_unicast+0x449/0x710 [ 4151.233542][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.233542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.233542][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.233542][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.233542][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.233542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.233542][ T10] [ 4151.235259][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4151.235259][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.235259][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.235259][ T10] ipv6_find_idev+0x102/0x170 [ 4151.235259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.235259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.235259][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.235259][ T10] netlink_unicast+0x449/0x710 [ 4151.235259][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.235259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.235259][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.235259][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.235259][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.235259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.235259][ T10] [ 4151.237162][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4151.237475][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4151.237475][ T10] netdev_get_by_index+0x5e/0x80 [ 4151.237475][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4151.237475][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4151.237475][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4151.237475][ T10] ipv6_add_addr+0x411/0x2000 [ 4151.237475][ T10] inet6_addr_add+0x30e/0xa40 [ 4151.237475][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4151.237475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.237475][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.237475][ T10] netlink_unicast+0x449/0x710 [ 4151.237475][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.237475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.237475][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.237475][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.237475][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.237475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.237475][ T10] [ 4151.239653][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4151.239653][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4151.239653][ T10] ipv6_find_idev+0x102/0x170 [ 4151.239653][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.239653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.239653][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.239653][ T10] netlink_unicast+0x449/0x710 [ 4151.239653][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.239653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.239653][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.239653][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.239653][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.239653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.239653][ T10] [ 4151.241435][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4151.241435][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4151.241435][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4151.241435][ T10] ipv6_find_idev+0x102/0x170 [ 4151.241435][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4151.241435][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4151.241435][ T10] netlink_rcv_skb+0x130/0x360 [ 4151.241435][ T10] netlink_unicast+0x449/0x710 [ 4151.241435][ T10] netlink_sendmsg+0x723/0xbe0 [ 4151.241435][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4151.241435][ T10] ___sys_sendmsg+0xee/0x170 [ 4151.241435][ T10] __sys_sendmsg+0xcd/0x170 [ 4151.241435][ T10] do_syscall_64+0xc6/0x1e0 [ 4151.241435][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4151.241435][ T10] [ 4161.483764][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4161.484278][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4161.484278][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.484278][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.484278][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.484278][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.484278][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.484278][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.484278][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.484278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.484278][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.484278][ T10] netlink_unicast+0x449/0x710 [ 4161.484278][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.484278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.484278][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.484278][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.484278][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.484278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.484278][ T10] [ 4161.486305][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4161.486305][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.486305][ T10] ipv6_find_idev+0x102/0x170 [ 4161.486305][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.486305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.486305][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.486305][ T10] netlink_unicast+0x449/0x710 [ 4161.486305][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.486305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.486305][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.486305][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.486305][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.486305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.486305][ T10] [ 4161.487852][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4161.487852][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.487852][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.487852][ T10] ipv6_find_idev+0x102/0x170 [ 4161.487852][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.487852][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.487852][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.487852][ T10] netlink_unicast+0x449/0x710 [ 4161.487852][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.487852][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.487852][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.487852][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.487852][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.487852][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.487852][ T10] [ 4161.489569][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4161.489859][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4161.489859][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.489859][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.489859][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.489859][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.489859][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.489859][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.489859][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.489859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.489859][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.489859][ T10] netlink_unicast+0x449/0x710 [ 4161.489859][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.489859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.489859][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.489859][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.489859][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.489859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.489859][ T10] [ 4161.491876][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4161.491876][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.491876][ T10] ipv6_find_idev+0x102/0x170 [ 4161.491876][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.491876][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.491876][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.491876][ T10] netlink_unicast+0x449/0x710 [ 4161.491876][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.491876][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.491876][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.491876][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.491876][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.491876][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.491876][ T10] [ 4161.493425][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4161.493425][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.493425][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.493425][ T10] ipv6_find_idev+0x102/0x170 [ 4161.493425][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.493425][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.493425][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.493425][ T10] netlink_unicast+0x449/0x710 [ 4161.493425][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.493425][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.493425][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.493425][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.493425][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.493425][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.493425][ T10] [ 4161.495118][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4161.495403][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4161.495403][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.495403][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.495403][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.495403][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.495403][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.495403][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.495403][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.495403][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.495403][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.495403][ T10] netlink_unicast+0x449/0x710 [ 4161.495403][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.495403][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.495403][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.495403][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.495403][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.495403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.495403][ T10] [ 4161.497399][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4161.497399][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.497399][ T10] ipv6_find_idev+0x102/0x170 [ 4161.497399][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.497399][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.497399][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.497399][ T10] netlink_unicast+0x449/0x710 [ 4161.497399][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.497399][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.497399][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.497399][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.497399][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.497399][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.497399][ T10] [ 4161.498942][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4161.498942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.498942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.498942][ T10] ipv6_find_idev+0x102/0x170 [ 4161.498942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.498942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.498942][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.498942][ T10] netlink_unicast+0x449/0x710 [ 4161.498942][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.498942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.498942][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.498942][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.498942][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.498942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.498942][ T10] [ 4161.500616][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4161.501328][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4161.501328][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.501328][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.501328][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.501328][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.501328][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.501328][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.501328][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.501328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.501328][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.501328][ T10] netlink_unicast+0x449/0x710 [ 4161.501328][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.501328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.501328][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.501328][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.501328][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.501328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.501328][ T10] [ 4161.503324][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4161.503324][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.503324][ T10] ipv6_find_idev+0x102/0x170 [ 4161.503324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.503324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.503324][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.503324][ T10] netlink_unicast+0x449/0x710 [ 4161.503324][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.503324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.503324][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.503324][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.503324][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.503324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.503324][ T10] [ 4161.504859][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4161.504859][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.504859][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.504859][ T10] ipv6_find_idev+0x102/0x170 [ 4161.504859][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.504859][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.504859][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.504859][ T10] netlink_unicast+0x449/0x710 [ 4161.504859][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.504859][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.504859][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.504859][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.504859][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.504859][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.504859][ T10] [ 4161.506591][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4161.506920][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4161.506920][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.506920][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.506920][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.506920][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.506920][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.506920][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.506920][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.506920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.506920][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.506920][ T10] netlink_unicast+0x449/0x710 [ 4161.506920][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.506920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.506920][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.506920][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.506920][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.506920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.506920][ T10] [ 4161.508918][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4161.508918][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.508918][ T10] ipv6_find_idev+0x102/0x170 [ 4161.508918][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.508918][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.508918][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.508918][ T10] netlink_unicast+0x449/0x710 [ 4161.508918][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.508918][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.508918][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.508918][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.508918][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.508918][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.508918][ T10] [ 4161.510458][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4161.510458][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.510458][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.510458][ T10] ipv6_find_idev+0x102/0x170 [ 4161.510458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.510458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.510458][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.510458][ T10] netlink_unicast+0x449/0x710 [ 4161.510458][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.510458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.510458][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.510458][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.510458][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.510458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.510458][ T10] [ 4161.512197][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4161.512508][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4161.512508][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.512508][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.512508][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.512508][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.512508][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.512508][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.512508][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.512508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.512508][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.512508][ T10] netlink_unicast+0x449/0x710 [ 4161.512508][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.512508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.512508][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.512508][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.512508][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.512508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.512508][ T10] [ 4161.514502][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4161.514502][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.514502][ T10] ipv6_find_idev+0x102/0x170 [ 4161.514502][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.514502][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.514502][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.514502][ T10] netlink_unicast+0x449/0x710 [ 4161.514502][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.514502][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.514502][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.514502][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.514502][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.514502][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.514502][ T10] [ 4161.516258][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4161.516258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.516258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.516258][ T10] ipv6_find_idev+0x102/0x170 [ 4161.516258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.516258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.516258][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.516258][ T10] netlink_unicast+0x449/0x710 [ 4161.516258][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.516258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.516258][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.516258][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.516258][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.516258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.516258][ T10] [ 4161.518226][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4161.518535][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4161.518535][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.518535][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.518535][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.518535][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.518535][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.518535][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.518535][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.518535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.518535][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.518535][ T10] netlink_unicast+0x449/0x710 [ 4161.518535][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.518535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.518535][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.518535][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.518535][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.518535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.518535][ T10] [ 4161.520706][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4161.520706][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.520706][ T10] ipv6_find_idev+0x102/0x170 [ 4161.520706][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.520706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.520706][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.520706][ T10] netlink_unicast+0x449/0x710 [ 4161.520706][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.520706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.520706][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.520706][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.520706][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.520706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.520706][ T10] [ 4161.522491][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4161.522491][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.522491][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.522491][ T10] ipv6_find_idev+0x102/0x170 [ 4161.522491][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.522491][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.522491][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.522491][ T10] netlink_unicast+0x449/0x710 [ 4161.522491][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.522491][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.522491][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.522491][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.522491][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.522491][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.522491][ T10] [ 4161.524405][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4161.524733][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4161.524733][ T10] netdev_get_by_index+0x5e/0x80 [ 4161.524733][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4161.524733][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4161.524733][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4161.524733][ T10] ipv6_add_addr+0x411/0x2000 [ 4161.524733][ T10] inet6_addr_add+0x30e/0xa40 [ 4161.524733][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4161.524733][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.524733][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.524733][ T10] netlink_unicast+0x449/0x710 [ 4161.524733][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.524733][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.524733][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.524733][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.524733][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.524733][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.524733][ T10] [ 4161.526907][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4161.526907][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4161.526907][ T10] ipv6_find_idev+0x102/0x170 [ 4161.526907][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.526907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.526907][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.526907][ T10] netlink_unicast+0x449/0x710 [ 4161.526907][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.526907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.526907][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.526907][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.526907][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.526907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.526907][ T10] [ 4161.528618][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4161.528618][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4161.528618][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4161.528618][ T10] ipv6_find_idev+0x102/0x170 [ 4161.528618][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4161.528618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4161.528618][ T10] netlink_rcv_skb+0x130/0x360 [ 4161.528618][ T10] netlink_unicast+0x449/0x710 [ 4161.528618][ T10] netlink_sendmsg+0x723/0xbe0 [ 4161.528618][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4161.528618][ T10] ___sys_sendmsg+0xee/0x170 [ 4161.528618][ T10] __sys_sendmsg+0xcd/0x170 [ 4161.528618][ T10] do_syscall_64+0xc6/0x1e0 [ 4161.528618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4161.528618][ T10] [ 4171.771725][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4171.772166][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4171.772166][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.772166][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.772166][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.772166][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.772166][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.772166][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.772166][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.772166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.772166][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.772166][ T10] netlink_unicast+0x449/0x710 [ 4171.772166][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.772166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.772166][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.772166][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.772166][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.772166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.772166][ T10] [ 4171.774188][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4171.774188][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.774188][ T10] ipv6_find_idev+0x102/0x170 [ 4171.774188][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.774188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.774188][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.774188][ T10] netlink_unicast+0x449/0x710 [ 4171.774188][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.774188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.774188][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.774188][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.774188][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.774188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.774188][ T10] [ 4171.775732][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4171.775732][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.775732][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.775732][ T10] ipv6_find_idev+0x102/0x170 [ 4171.775732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.775732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.775732][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.775732][ T10] netlink_unicast+0x449/0x710 [ 4171.775732][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.775732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.775732][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.775732][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.775732][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.775732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.775732][ T10] [ 4171.777435][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4171.777716][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4171.777716][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.777716][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.777716][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.777716][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.777716][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.777716][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.777716][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.777716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.777716][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.777716][ T10] netlink_unicast+0x449/0x710 [ 4171.777716][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.777716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.777716][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.777716][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.777716][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.777716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.777716][ T10] [ 4171.779707][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4171.779707][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.779707][ T10] ipv6_find_idev+0x102/0x170 [ 4171.779707][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.779707][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.779707][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.779707][ T10] netlink_unicast+0x449/0x710 [ 4171.779707][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.779707][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.779707][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.779707][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.779707][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.779707][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.779707][ T10] [ 4171.781258][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4171.781258][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.781258][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.781258][ T10] ipv6_find_idev+0x102/0x170 [ 4171.781258][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.781258][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.781258][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.781258][ T10] netlink_unicast+0x449/0x710 [ 4171.781258][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.781258][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.781258][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.781258][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.781258][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.781258][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.781258][ T10] [ 4171.782919][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4171.783183][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4171.783183][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.783183][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.783183][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.783183][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.783183][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.783183][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.783183][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.783183][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.783183][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.783183][ T10] netlink_unicast+0x449/0x710 [ 4171.783183][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.783183][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.783183][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.783183][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.783183][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.783183][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.783183][ T10] [ 4171.785153][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4171.785153][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.785153][ T10] ipv6_find_idev+0x102/0x170 [ 4171.785153][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.785153][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.785153][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.785153][ T10] netlink_unicast+0x449/0x710 [ 4171.785153][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.785153][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.785153][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.785153][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.785153][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.785153][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.785153][ T10] [ 4171.786677][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4171.786677][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.786677][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.786677][ T10] ipv6_find_idev+0x102/0x170 [ 4171.786677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.786677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.786677][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.786677][ T10] netlink_unicast+0x449/0x710 [ 4171.786677][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.786677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.786677][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.786677][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.786677][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.786677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.786677][ T10] [ 4171.788341][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4171.788604][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4171.788604][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.788604][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.788604][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.788604][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.788604][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.788604][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.788604][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.788604][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.788604][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.788604][ T10] netlink_unicast+0x449/0x710 [ 4171.788604][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.788604][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.788604][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.788604][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.788604][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.788604][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.788604][ T10] [ 4171.790581][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4171.790581][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.790581][ T10] ipv6_find_idev+0x102/0x170 [ 4171.790581][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.790581][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.790581][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.790581][ T10] netlink_unicast+0x449/0x710 [ 4171.790581][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.790581][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.790581][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.790581][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.790581][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.790581][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.790581][ T10] [ 4171.792114][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4171.792114][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.792114][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.792114][ T10] ipv6_find_idev+0x102/0x170 [ 4171.792114][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.792114][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.792114][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.792114][ T10] netlink_unicast+0x449/0x710 [ 4171.792114][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.792114][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.792114][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.792114][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.792114][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.792114][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.792114][ T10] [ 4171.793786][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4171.794058][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4171.794058][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.794058][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.794058][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.794058][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.794058][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.794058][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.794058][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.794058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.794058][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.794058][ T10] netlink_unicast+0x449/0x710 [ 4171.794058][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.794058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.794058][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.794058][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.794058][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.794058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.794058][ T10] [ 4171.796035][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4171.796035][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.796035][ T10] ipv6_find_idev+0x102/0x170 [ 4171.796035][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.796035][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.796035][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.796035][ T10] netlink_unicast+0x449/0x710 [ 4171.796035][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.796035][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.796035][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.796035][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.796035][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.796035][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.796035][ T10] [ 4171.797625][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4171.797625][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.797625][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.797625][ T10] ipv6_find_idev+0x102/0x170 [ 4171.797625][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.797625][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.797625][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.797625][ T10] netlink_unicast+0x449/0x710 [ 4171.797625][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.797625][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.797625][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.797625][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.797625][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.797625][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.797625][ T10] [ 4171.799846][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4171.800110][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4171.800110][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.800110][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.800110][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.800110][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.800110][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.800110][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.800110][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.800110][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.800110][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.800110][ T10] netlink_unicast+0x449/0x710 [ 4171.800110][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.800110][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.800110][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.800110][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.800110][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.800110][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.800110][ T10] [ 4171.802104][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4171.802104][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.802104][ T10] ipv6_find_idev+0x102/0x170 [ 4171.802104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.802104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.802104][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.802104][ T10] netlink_unicast+0x449/0x710 [ 4171.802104][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.802104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.802104][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.802104][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.802104][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.802104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.802104][ T10] [ 4171.803693][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4171.803693][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.803693][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.803693][ T10] ipv6_find_idev+0x102/0x170 [ 4171.803693][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.803693][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.803693][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.803693][ T10] netlink_unicast+0x449/0x710 [ 4171.803693][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.803693][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.803693][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.803693][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.803693][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.803693][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.803693][ T10] [ 4171.805465][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4171.805779][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4171.805779][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.805779][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.805779][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.805779][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.805779][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.805779][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.805779][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.805779][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.805779][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.805779][ T10] netlink_unicast+0x449/0x710 [ 4171.805779][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.805779][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.805779][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.805779][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.805779][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.805779][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.805779][ T10] [ 4171.807882][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4171.807882][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.807882][ T10] ipv6_find_idev+0x102/0x170 [ 4171.807882][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.807882][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.807882][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.807882][ T10] netlink_unicast+0x449/0x710 [ 4171.807882][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.807882][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.807882][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.807882][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.807882][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.807882][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.807882][ T10] [ 4171.809469][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4171.809469][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.809469][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.809469][ T10] ipv6_find_idev+0x102/0x170 [ 4171.809469][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.809469][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.809469][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.809469][ T10] netlink_unicast+0x449/0x710 [ 4171.809469][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.809469][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.809469][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.809469][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.809469][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.809469][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.809469][ T10] [ 4171.811313][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4171.811575][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4171.811575][ T10] netdev_get_by_index+0x5e/0x80 [ 4171.811575][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4171.811575][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4171.811575][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4171.811575][ T10] ipv6_add_addr+0x411/0x2000 [ 4171.811575][ T10] inet6_addr_add+0x30e/0xa40 [ 4171.811575][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4171.811575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.811575][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.811575][ T10] netlink_unicast+0x449/0x710 [ 4171.811575][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.811575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.811575][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.811575][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.811575][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.811575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.811575][ T10] [ 4171.813677][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4171.813677][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4171.813677][ T10] ipv6_find_idev+0x102/0x170 [ 4171.813677][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.813677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.813677][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.813677][ T10] netlink_unicast+0x449/0x710 [ 4171.813677][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.813677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.813677][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.813677][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.813677][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.813677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.813677][ T10] [ 4171.815285][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4171.815285][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4171.815285][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4171.815285][ T10] ipv6_find_idev+0x102/0x170 [ 4171.815285][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4171.815285][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4171.815285][ T10] netlink_rcv_skb+0x130/0x360 [ 4171.815285][ T10] netlink_unicast+0x449/0x710 [ 4171.815285][ T10] netlink_sendmsg+0x723/0xbe0 [ 4171.815285][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4171.815285][ T10] ___sys_sendmsg+0xee/0x170 [ 4171.815285][ T10] __sys_sendmsg+0xcd/0x170 [ 4171.815285][ T10] do_syscall_64+0xc6/0x1e0 [ 4171.815285][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4171.815285][ T10] [ 4179.235872][ T42] INFO: task modprobe:14797 blocked for more than 1105 seconds. [ 4179.236219][ T42] Not tainted 6.8.0-virtme #1 [ 4179.236338][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4179.236552][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 4179.236830][ T42] Call Trace: [ 4179.236927][ T42] [ 4179.237000][ T42] __schedule+0x705/0x1ac0 [ 4179.237136][ T42] ? __pfx___schedule+0x10/0x10 [ 4179.237260][ T42] ? schedule+0x1a5/0x210 [ 4179.237362][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4179.237492][ T42] ? mark_lock+0x38/0x3e0 [ 4179.237586][ T42] ? do_raw_spin_lock+0x131/0x270 [ 4179.237734][ T42] ? schedule+0x1a5/0x210 [ 4179.237832][ T42] schedule+0xdf/0x210 [ 4179.237928][ T42] schedule_preempt_disabled+0x15/0x30 [ 4179.238049][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 4179.238183][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 4179.238339][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4179.238469][ T42] ? lock_acquire+0x1c1/0x220 [ 4179.238591][ T42] ? register_pernet_subsys+0x1a/0x50 [ 4179.238736][ T42] down_write+0x1c9/0x200 [ 4179.238832][ T42] ? __pfx_down_write+0x10/0x10 [ 4179.238956][ T42] ? __lock_release+0x103/0x460 [ 4179.239082][ T42] ? __create_object+0x5e/0xb0 [ 4179.239206][ T42] ? __pfx___lock_release+0x10/0x10 [ 4179.239332][ T42] register_pernet_subsys+0x1a/0x50 [ 4179.239457][ T42] tcf_register_action+0xa3/0x600 [ 4179.239583][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 4179.239754][ T42] do_one_initcall+0xc8/0x3f0 [ 4179.239885][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 4179.240013][ T42] ? __create_object+0x5e/0xb0 [ 4179.240138][ T42] ? kasan_unpoison+0x27/0x60 [ 4179.240267][ T42] do_init_module+0x233/0x740 [ 4179.240399][ T42] load_module+0x16b5/0x2350 [ 4179.240534][ T42] ? __pfx_load_module+0x10/0x10 [ 4179.240682][ T42] ? kernel_read_file+0x3d2/0x520 [ 4179.240829][ T42] ? kernel_read_file+0x300/0x520 [ 4179.240956][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 4179.241090][ T42] ? init_module_from_file+0xd2/0x130 [ 4179.241212][ T42] init_module_from_file+0xd2/0x130 [ 4179.241334][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 4179.241490][ T42] ? __lock_release+0x103/0x460 [ 4179.241615][ T42] ? idempotent_init_module+0x32a/0x620 [ 4179.241756][ T42] ? idempotent_init_module+0x32a/0x620 [ 4179.241883][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 4179.242009][ T42] idempotent_init_module+0x342/0x620 [ 4179.242137][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 4179.242311][ T42] __x64_sys_finit_module+0xbe/0x130 [ 4179.242436][ T42] do_syscall_64+0xc6/0x1e0 [ 4179.242562][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4179.242727][ T42] RIP: 0033:0x7f188f3c6e5d [ 4179.243380][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 4179.243568][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 4179.243768][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 4179.243949][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 4179.244135][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 4179.244320][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 4179.244516][ T42] [ 4179.244611][ T42] [ 4179.244611][ T42] Showing all locks held in the system: [ 4179.244805][ T42] 4 locks held by kworker/u16:0/10: [ 4179.244927][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 4179.245183][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 4179.245404][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 4179.245620][ T42] #3: ffffffff9dd7d980 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4e/0x6e0 [ 4179.245852][ T42] 1 lock held by khungtaskd/42: [ 4179.245984][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 4179.246212][ T42] 2 locks held by kworker/u20:2/10034: [ 4179.246329][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 4179.246575][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 4179.246858][ T42] 1 lock held by modprobe/14797: [ 4179.246977][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 4179.247225][ T42] [ 4179.247285][ T42] ============================================= [ 4179.247285][ T42] [ 4181.819784][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4181.820228][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4181.820228][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.820228][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.820228][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.820228][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.820228][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.820228][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.820228][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.820228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.820228][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.820228][ T10] netlink_unicast+0x449/0x710 [ 4181.820228][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.820228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.820228][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.820228][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.820228][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.820228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.820228][ T10] [ 4181.822227][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4181.822227][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.822227][ T10] ipv6_find_idev+0x102/0x170 [ 4181.822227][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.822227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.822227][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.822227][ T10] netlink_unicast+0x449/0x710 [ 4181.822227][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.822227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.822227][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.822227][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.822227][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.822227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.822227][ T10] [ 4181.823760][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4181.823760][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.823760][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.823760][ T10] ipv6_find_idev+0x102/0x170 [ 4181.823760][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.823760][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.823760][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.823760][ T10] netlink_unicast+0x449/0x710 [ 4181.823760][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.823760][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.823760][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.823760][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.823760][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.823760][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.823760][ T10] [ 4181.825450][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4181.825731][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4181.825731][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.825731][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.825731][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.825731][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.825731][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.825731][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.825731][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.825731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.825731][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.825731][ T10] netlink_unicast+0x449/0x710 [ 4181.825731][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.825731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.825731][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.825731][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.825731][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.825731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.825731][ T10] [ 4181.827705][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4181.827705][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.827705][ T10] ipv6_find_idev+0x102/0x170 [ 4181.827705][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.827705][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.827705][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.827705][ T10] netlink_unicast+0x449/0x710 [ 4181.827705][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.827705][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.827705][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.827705][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.827705][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.827705][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.827705][ T10] [ 4181.829226][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4181.829226][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.829226][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.829226][ T10] ipv6_find_idev+0x102/0x170 [ 4181.829226][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.829226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.829226][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.829226][ T10] netlink_unicast+0x449/0x710 [ 4181.829226][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.829226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.829226][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.829226][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.829226][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.829226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.829226][ T10] [ 4181.830922][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4181.831191][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4181.831191][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.831191][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.831191][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.831191][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.831191][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.831191][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.831191][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.831191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.831191][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.831191][ T10] netlink_unicast+0x449/0x710 [ 4181.831191][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.831191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.831191][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.831191][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.831191][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.831191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.831191][ T10] [ 4181.833166][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4181.833166][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.833166][ T10] ipv6_find_idev+0x102/0x170 [ 4181.833166][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.833166][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.833166][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.833166][ T10] netlink_unicast+0x449/0x710 [ 4181.833166][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.833166][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.833166][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.833166][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.833166][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.833166][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.833166][ T10] [ 4181.834687][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4181.834687][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.834687][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.834687][ T10] ipv6_find_idev+0x102/0x170 [ 4181.834687][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.834687][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.834687][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.834687][ T10] netlink_unicast+0x449/0x710 [ 4181.834687][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.834687][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.834687][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.834687][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.834687][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.834687][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.834687][ T10] [ 4181.836346][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4181.836605][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4181.836605][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.836605][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.836605][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.836605][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.836605][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.836605][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.836605][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.836605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.836605][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.836605][ T10] netlink_unicast+0x449/0x710 [ 4181.836605][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.836605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.836605][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.836605][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.836605][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.836605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.836605][ T10] [ 4181.838580][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4181.838580][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.838580][ T10] ipv6_find_idev+0x102/0x170 [ 4181.838580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.838580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.838580][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.838580][ T10] netlink_unicast+0x449/0x710 [ 4181.838580][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.838580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.838580][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.838580][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.838580][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.838580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.838580][ T10] [ 4181.840107][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4181.840107][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.840107][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.840107][ T10] ipv6_find_idev+0x102/0x170 [ 4181.840107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.840107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.840107][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.840107][ T10] netlink_unicast+0x449/0x710 [ 4181.840107][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.840107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.840107][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.840107][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.840107][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.840107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.840107][ T10] [ 4181.842184][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4181.842447][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4181.842447][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.842447][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.842447][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.842447][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.842447][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.842447][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.842447][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.842447][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.842447][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.842447][ T10] netlink_unicast+0x449/0x710 [ 4181.842447][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.842447][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.842447][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.842447][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.842447][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.842447][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.842447][ T10] [ 4181.844411][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4181.844411][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.844411][ T10] ipv6_find_idev+0x102/0x170 [ 4181.844411][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.844411][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.844411][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.844411][ T10] netlink_unicast+0x449/0x710 [ 4181.844411][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.844411][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.844411][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.844411][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.844411][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.844411][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.844411][ T10] [ 4181.845933][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4181.845933][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.845933][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.845933][ T10] ipv6_find_idev+0x102/0x170 [ 4181.845933][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.845933][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.845933][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.845933][ T10] netlink_unicast+0x449/0x710 [ 4181.845933][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.845933][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.845933][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.845933][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.845933][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.845933][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.845933][ T10] [ 4181.847637][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4181.847959][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4181.847959][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.847959][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.847959][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.847959][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.847959][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.847959][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.847959][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.847959][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.847959][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.847959][ T10] netlink_unicast+0x449/0x710 [ 4181.847959][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.847959][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.847959][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.847959][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.847959][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.847959][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.847959][ T10] [ 4181.850603][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4181.850603][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.850603][ T10] ipv6_find_idev+0x102/0x170 [ 4181.850603][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.850603][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.850603][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.850603][ T10] netlink_unicast+0x449/0x710 [ 4181.850603][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.850603][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.850603][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.850603][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.850603][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.850603][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.850603][ T10] [ 4181.852382][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4181.852382][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.852382][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.852382][ T10] ipv6_find_idev+0x102/0x170 [ 4181.852382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.852382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.852382][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.852382][ T10] netlink_unicast+0x449/0x710 [ 4181.852382][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.852382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.852382][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.852382][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.852382][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.852382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.852382][ T10] [ 4181.854267][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4181.854550][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4181.854550][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.854550][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.854550][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.854550][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.854550][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.854550][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.854550][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.854550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.854550][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.854550][ T10] netlink_unicast+0x449/0x710 [ 4181.854550][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.854550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.854550][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.854550][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.854550][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.854550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.854550][ T10] [ 4181.856748][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4181.856748][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.856748][ T10] ipv6_find_idev+0x102/0x170 [ 4181.856748][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.856748][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.856748][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.856748][ T10] netlink_unicast+0x449/0x710 [ 4181.856748][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.856748][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.856748][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.856748][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.856748][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.856748][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.856748][ T10] [ 4181.858437][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4181.858437][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.858437][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.858437][ T10] ipv6_find_idev+0x102/0x170 [ 4181.858437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.858437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.858437][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.858437][ T10] netlink_unicast+0x449/0x710 [ 4181.858437][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.858437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.858437][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.858437][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.858437][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.858437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.858437][ T10] [ 4181.860337][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4181.860603][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4181.860603][ T10] netdev_get_by_index+0x5e/0x80 [ 4181.860603][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4181.860603][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4181.860603][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4181.860603][ T10] ipv6_add_addr+0x411/0x2000 [ 4181.860603][ T10] inet6_addr_add+0x30e/0xa40 [ 4181.860603][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.860603][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.860603][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.860603][ T10] netlink_unicast+0x449/0x710 [ 4181.860603][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.860603][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.860603][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.860603][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.860603][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.860603][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.860603][ T10] [ 4181.862876][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4181.862876][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4181.862876][ T10] ipv6_find_idev+0x102/0x170 [ 4181.862876][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.862876][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.862876][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.862876][ T10] netlink_unicast+0x449/0x710 [ 4181.862876][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.862876][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.862876][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.862876][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.862876][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.862876][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.862876][ T10] [ 4181.864573][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4181.864573][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4181.864573][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4181.864573][ T10] ipv6_find_idev+0x102/0x170 [ 4181.864573][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.864573][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.864573][ T10] netlink_rcv_skb+0x130/0x360 [ 4181.864573][ T10] netlink_unicast+0x449/0x710 [ 4181.864573][ T10] netlink_sendmsg+0x723/0xbe0 [ 4181.864573][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4181.864573][ T10] ___sys_sendmsg+0xee/0x170 [ 4181.864573][ T10] __sys_sendmsg+0xcd/0x170 [ 4181.864573][ T10] do_syscall_64+0xc6/0x1e0 [ 4181.864573][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.864573][ T10] [ 4192.107803][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4192.108312][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4192.108312][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.108312][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.108312][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.108312][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.108312][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.108312][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.108312][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.108312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.108312][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.108312][ T10] netlink_unicast+0x449/0x710 [ 4192.108312][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.108312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.108312][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.108312][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.108312][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.108312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.108312][ T10] [ 4192.110669][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4192.110669][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.110669][ T10] ipv6_find_idev+0x102/0x170 [ 4192.110669][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.110669][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.110669][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.110669][ T10] netlink_unicast+0x449/0x710 [ 4192.110669][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.110669][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.110669][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.110669][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.110669][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.110669][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.110669][ T10] [ 4192.112223][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4192.112223][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.112223][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.112223][ T10] ipv6_find_idev+0x102/0x170 [ 4192.112223][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.112223][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.112223][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.112223][ T10] netlink_unicast+0x449/0x710 [ 4192.112223][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.112223][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.112223][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.112223][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.112223][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.112223][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.112223][ T10] [ 4192.113930][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4192.114195][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4192.114195][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.114195][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.114195][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.114195][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.114195][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.114195][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.114195][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.114195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.114195][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.114195][ T10] netlink_unicast+0x449/0x710 [ 4192.114195][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.114195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.114195][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.114195][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.114195][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.114195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.114195][ T10] [ 4192.116208][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4192.116208][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.116208][ T10] ipv6_find_idev+0x102/0x170 [ 4192.116208][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.116208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.116208][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.116208][ T10] netlink_unicast+0x449/0x710 [ 4192.116208][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.116208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.116208][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.116208][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.116208][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.116208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.116208][ T10] [ 4192.117764][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4192.117764][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.117764][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.117764][ T10] ipv6_find_idev+0x102/0x170 [ 4192.117764][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.117764][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.117764][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.117764][ T10] netlink_unicast+0x449/0x710 [ 4192.117764][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.117764][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.117764][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.117764][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.117764][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.117764][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.117764][ T10] [ 4192.119436][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4192.119716][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4192.119716][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.119716][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.119716][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.119716][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.119716][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.119716][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.119716][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.119716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.119716][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.119716][ T10] netlink_unicast+0x449/0x710 [ 4192.119716][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.119716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.119716][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.119716][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.119716][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.119716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.119716][ T10] [ 4192.121715][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4192.121715][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.121715][ T10] ipv6_find_idev+0x102/0x170 [ 4192.121715][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.121715][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.121715][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.121715][ T10] netlink_unicast+0x449/0x710 [ 4192.121715][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.121715][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.121715][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.121715][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.121715][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.121715][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.121715][ T10] [ 4192.123248][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4192.123248][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.123248][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.123248][ T10] ipv6_find_idev+0x102/0x170 [ 4192.123248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.123248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.123248][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.123248][ T10] netlink_unicast+0x449/0x710 [ 4192.123248][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.123248][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.123248][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.123248][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.123248][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.123248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.123248][ T10] [ 4192.124928][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4192.125188][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4192.125188][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.125188][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.125188][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.125188][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.125188][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.125188][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.125188][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.125188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.125188][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.125188][ T10] netlink_unicast+0x449/0x710 [ 4192.125188][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.125188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.125188][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.125188][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.125188][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.125188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.125188][ T10] [ 4192.127178][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4192.127178][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.127178][ T10] ipv6_find_idev+0x102/0x170 [ 4192.127178][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.127178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.127178][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.127178][ T10] netlink_unicast+0x449/0x710 [ 4192.127178][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.127178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.127178][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.127178][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.127178][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.127178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.127178][ T10] [ 4192.128716][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4192.128716][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.128716][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.128716][ T10] ipv6_find_idev+0x102/0x170 [ 4192.128716][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.128716][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.128716][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.128716][ T10] netlink_unicast+0x449/0x710 [ 4192.128716][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.128716][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.128716][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.128716][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.128716][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.128716][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.128716][ T10] [ 4192.130390][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4192.130662][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4192.130662][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.130662][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.130662][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.130662][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.130662][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.130662][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.130662][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.130662][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.130662][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.130662][ T10] netlink_unicast+0x449/0x710 [ 4192.130662][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.130662][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.130662][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.130662][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.130662][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.130662][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.130662][ T10] [ 4192.132667][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4192.132667][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.132667][ T10] ipv6_find_idev+0x102/0x170 [ 4192.132667][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.132667][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.132667][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.132667][ T10] netlink_unicast+0x449/0x710 [ 4192.132667][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.132667][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.132667][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.132667][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.132667][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.132667][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.132667][ T10] [ 4192.134326][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4192.134326][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.134326][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.134326][ T10] ipv6_find_idev+0x102/0x170 [ 4192.134326][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.134326][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.134326][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.134326][ T10] netlink_unicast+0x449/0x710 [ 4192.134326][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.134326][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.134326][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.134326][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.134326][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.134326][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.134326][ T10] [ 4192.136300][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4192.136562][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4192.136562][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.136562][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.136562][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.136562][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.136562][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.136562][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.136562][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.136562][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.136562][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.136562][ T10] netlink_unicast+0x449/0x710 [ 4192.136562][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.136562][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.136562][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.136562][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.136562][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.136562][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.136562][ T10] [ 4192.138722][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4192.138722][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.138722][ T10] ipv6_find_idev+0x102/0x170 [ 4192.138722][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.138722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.138722][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.138722][ T10] netlink_unicast+0x449/0x710 [ 4192.138722][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.138722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.138722][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.138722][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.138722][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.138722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.138722][ T10] [ 4192.140434][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4192.140434][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.140434][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.140434][ T10] ipv6_find_idev+0x102/0x170 [ 4192.140434][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.140434][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.140434][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.140434][ T10] netlink_unicast+0x449/0x710 [ 4192.140434][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.140434][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.140434][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.140434][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.140434][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.140434][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.140434][ T10] [ 4192.142399][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4192.142675][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4192.142675][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.142675][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.142675][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.142675][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.142675][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.142675][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.142675][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.142675][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.142675][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.142675][ T10] netlink_unicast+0x449/0x710 [ 4192.142675][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.142675][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.142675][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.142675][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.142675][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.142675][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.142675][ T10] [ 4192.144836][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4192.144836][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.144836][ T10] ipv6_find_idev+0x102/0x170 [ 4192.144836][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.144836][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.144836][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.144836][ T10] netlink_unicast+0x449/0x710 [ 4192.144836][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.144836][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.144836][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.144836][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.144836][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.144836][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.144836][ T10] [ 4192.146606][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4192.146606][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.146606][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.146606][ T10] ipv6_find_idev+0x102/0x170 [ 4192.146606][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.146606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.146606][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.146606][ T10] netlink_unicast+0x449/0x710 [ 4192.146606][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.146606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.146606][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.146606][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.146606][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.146606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.146606][ T10] [ 4192.148552][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4192.148871][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4192.148871][ T10] netdev_get_by_index+0x5e/0x80 [ 4192.148871][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4192.148871][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4192.148871][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4192.148871][ T10] ipv6_add_addr+0x411/0x2000 [ 4192.148871][ T10] inet6_addr_add+0x30e/0xa40 [ 4192.148871][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4192.148871][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.148871][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.148871][ T10] netlink_unicast+0x449/0x710 [ 4192.148871][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.148871][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.148871][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.148871][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.148871][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.148871][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.148871][ T10] [ 4192.151045][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4192.151045][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4192.151045][ T10] ipv6_find_idev+0x102/0x170 [ 4192.151045][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.151045][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.151045][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.151045][ T10] netlink_unicast+0x449/0x710 [ 4192.151045][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.151045][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.151045][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.151045][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.151045][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.151045][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.151045][ T10] [ 4192.152756][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4192.152756][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4192.152756][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4192.152756][ T10] ipv6_find_idev+0x102/0x170 [ 4192.152756][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4192.152756][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4192.152756][ T10] netlink_rcv_skb+0x130/0x360 [ 4192.152756][ T10] netlink_unicast+0x449/0x710 [ 4192.152756][ T10] netlink_sendmsg+0x723/0xbe0 [ 4192.152756][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4192.152756][ T10] ___sys_sendmsg+0xee/0x170 [ 4192.152756][ T10] __sys_sendmsg+0xcd/0x170 [ 4192.152756][ T10] do_syscall_64+0xc6/0x1e0 [ 4192.152756][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4192.152756][ T10] [ 4202.243749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4202.244290][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4202.244290][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.244290][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.244290][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.244290][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.244290][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.244290][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.244290][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.244290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.244290][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.244290][ T10] netlink_unicast+0x449/0x710 [ 4202.244290][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.244290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.244290][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.244290][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.244290][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.244290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.244290][ T10] [ 4202.246560][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4202.246560][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.246560][ T10] ipv6_find_idev+0x102/0x170 [ 4202.246560][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.246560][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.246560][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.246560][ T10] netlink_unicast+0x449/0x710 [ 4202.246560][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.246560][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.246560][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.246560][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.246560][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.246560][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.246560][ T10] [ 4202.248295][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4202.248295][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.248295][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.248295][ T10] ipv6_find_idev+0x102/0x170 [ 4202.248295][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.248295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.248295][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.248295][ T10] netlink_unicast+0x449/0x710 [ 4202.248295][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.248295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.248295][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.248295][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.248295][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.248295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.248295][ T10] [ 4202.250196][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4202.250492][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4202.250492][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.250492][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.250492][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.250492][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.250492][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.250492][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.250492][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.250492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.250492][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.250492][ T10] netlink_unicast+0x449/0x710 [ 4202.250492][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.250492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.250492][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.250492][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.250492][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.250492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.250492][ T10] [ 4202.252746][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4202.252746][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.252746][ T10] ipv6_find_idev+0x102/0x170 [ 4202.252746][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.252746][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.252746][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.252746][ T10] netlink_unicast+0x449/0x710 [ 4202.252746][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.252746][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.252746][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.252746][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.252746][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.252746][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.252746][ T10] [ 4202.254470][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4202.254470][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.254470][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.254470][ T10] ipv6_find_idev+0x102/0x170 [ 4202.254470][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.254470][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.254470][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.254470][ T10] netlink_unicast+0x449/0x710 [ 4202.254470][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.254470][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.254470][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.254470][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.254470][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.254470][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.254470][ T10] [ 4202.256360][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4202.256653][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4202.256653][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.256653][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.256653][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.256653][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.256653][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.256653][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.256653][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.256653][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.256653][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.256653][ T10] netlink_unicast+0x449/0x710 [ 4202.256653][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.256653][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.256653][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.256653][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.256653][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.256653][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.256653][ T10] [ 4202.258909][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4202.258909][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.258909][ T10] ipv6_find_idev+0x102/0x170 [ 4202.258909][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.258909][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.258909][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.258909][ T10] netlink_unicast+0x449/0x710 [ 4202.258909][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.258909][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.258909][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.258909][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.258909][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.258909][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.258909][ T10] [ 4202.260652][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4202.260652][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.260652][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.260652][ T10] ipv6_find_idev+0x102/0x170 [ 4202.260652][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.260652][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.260652][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.260652][ T10] netlink_unicast+0x449/0x710 [ 4202.260652][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.260652][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.260652][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.260652][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.260652][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.260652][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.260652][ T10] [ 4202.262659][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4202.262952][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4202.262952][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.262952][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.262952][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.262952][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.262952][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.262952][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.262952][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.262952][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.262952][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.262952][ T10] netlink_unicast+0x449/0x710 [ 4202.262952][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.262952][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.262952][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.262952][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.262952][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.262952][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.262952][ T10] [ 4202.265196][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4202.265196][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.265196][ T10] ipv6_find_idev+0x102/0x170 [ 4202.265196][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.265196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.265196][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.265196][ T10] netlink_unicast+0x449/0x710 [ 4202.265196][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.265196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.265196][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.265196][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.265196][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.265196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.265196][ T10] [ 4202.266912][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4202.266912][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.266912][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.266912][ T10] ipv6_find_idev+0x102/0x170 [ 4202.266912][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.266912][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.266912][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.266912][ T10] netlink_unicast+0x449/0x710 [ 4202.266912][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.266912][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.266912][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.266912][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.266912][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.266912][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.266912][ T10] [ 4202.269193][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4202.269822][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4202.269822][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.269822][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.269822][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.269822][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.269822][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.269822][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.269822][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.269822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.269822][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.269822][ T10] netlink_unicast+0x449/0x710 [ 4202.269822][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.269822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.269822][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.269822][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.269822][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.269822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.269822][ T10] [ 4202.272065][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4202.272065][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.272065][ T10] ipv6_find_idev+0x102/0x170 [ 4202.272065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.272065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.272065][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.272065][ T10] netlink_unicast+0x449/0x710 [ 4202.272065][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.272065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.272065][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.272065][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.272065][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.272065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.272065][ T10] [ 4202.273785][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4202.273785][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.273785][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.273785][ T10] ipv6_find_idev+0x102/0x170 [ 4202.273785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.273785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.273785][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.273785][ T10] netlink_unicast+0x449/0x710 [ 4202.273785][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.273785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.273785][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.273785][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.273785][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.273785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.273785][ T10] [ 4202.275665][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4202.275961][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4202.275961][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.275961][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.275961][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.275961][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.275961][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.275961][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.275961][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.275961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.275961][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.275961][ T10] netlink_unicast+0x449/0x710 [ 4202.275961][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.275961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.275961][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.275961][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.275961][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.275961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.275961][ T10] [ 4202.278189][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4202.278189][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.278189][ T10] ipv6_find_idev+0x102/0x170 [ 4202.278189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.278189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.278189][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.278189][ T10] netlink_unicast+0x449/0x710 [ 4202.278189][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.278189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.278189][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.278189][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.278189][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.278189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.278189][ T10] [ 4202.279908][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4202.279908][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.279908][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.279908][ T10] ipv6_find_idev+0x102/0x170 [ 4202.279908][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.279908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.279908][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.279908][ T10] netlink_unicast+0x449/0x710 [ 4202.279908][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.279908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.279908][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.279908][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.279908][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.279908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.279908][ T10] [ 4202.282059][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4202.282393][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4202.282393][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.282393][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.282393][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.282393][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.282393][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.282393][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.282393][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.282393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.282393][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.282393][ T10] netlink_unicast+0x449/0x710 [ 4202.282393][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.282393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.282393][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.282393][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.282393][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.282393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.282393][ T10] [ 4202.284816][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4202.284816][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.284816][ T10] ipv6_find_idev+0x102/0x170 [ 4202.284816][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.284816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.284816][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.284816][ T10] netlink_unicast+0x449/0x710 [ 4202.284816][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.284816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.284816][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.284816][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.284816][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.284816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.284816][ T10] [ 4202.286714][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4202.286714][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.286714][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.286714][ T10] ipv6_find_idev+0x102/0x170 [ 4202.286714][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.286714][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.286714][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.286714][ T10] netlink_unicast+0x449/0x710 [ 4202.286714][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.286714][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.286714][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.286714][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.286714][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.286714][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.286714][ T10] [ 4202.288866][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4202.289202][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4202.289202][ T10] netdev_get_by_index+0x5e/0x80 [ 4202.289202][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4202.289202][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4202.289202][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4202.289202][ T10] ipv6_add_addr+0x411/0x2000 [ 4202.289202][ T10] inet6_addr_add+0x30e/0xa40 [ 4202.289202][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4202.289202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.289202][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.289202][ T10] netlink_unicast+0x449/0x710 [ 4202.289202][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.289202][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.289202][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.289202][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.289202][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.289202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.289202][ T10] [ 4202.291602][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4202.291602][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4202.291602][ T10] ipv6_find_idev+0x102/0x170 [ 4202.291602][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.291602][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.291602][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.291602][ T10] netlink_unicast+0x449/0x710 [ 4202.291602][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.291602][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.291602][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.291602][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.291602][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.291602][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.291602][ T10] [ 4202.294078][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4202.294078][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4202.294078][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4202.294078][ T10] ipv6_find_idev+0x102/0x170 [ 4202.294078][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4202.294078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4202.294078][ T10] netlink_rcv_skb+0x130/0x360 [ 4202.294078][ T10] netlink_unicast+0x449/0x710 [ 4202.294078][ T10] netlink_sendmsg+0x723/0xbe0 [ 4202.294078][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4202.294078][ T10] ___sys_sendmsg+0xee/0x170 [ 4202.294078][ T10] __sys_sendmsg+0xcd/0x170 [ 4202.294078][ T10] do_syscall_64+0xc6/0x1e0 [ 4202.294078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4202.294078][ T10] [ 4212.475781][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4212.476232][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4212.476232][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.476232][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.476232][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.476232][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.476232][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.476232][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.476232][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.476232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.476232][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.476232][ T10] netlink_unicast+0x449/0x710 [ 4212.476232][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.476232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.476232][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.476232][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.476232][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.476232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.476232][ T10] [ 4212.478431][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4212.478431][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.478431][ T10] ipv6_find_idev+0x102/0x170 [ 4212.478431][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.478431][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.478431][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.478431][ T10] netlink_unicast+0x449/0x710 [ 4212.478431][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.478431][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.478431][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.478431][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.478431][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.478431][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.478431][ T10] [ 4212.480113][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4212.480113][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.480113][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.480113][ T10] ipv6_find_idev+0x102/0x170 [ 4212.480113][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.480113][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.480113][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.480113][ T10] netlink_unicast+0x449/0x710 [ 4212.480113][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.480113][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.480113][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.480113][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.480113][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.480113][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.480113][ T10] [ 4212.481959][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4212.482251][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4212.482251][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.482251][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.482251][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.482251][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.482251][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.482251][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.482251][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.482251][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.482251][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.482251][ T10] netlink_unicast+0x449/0x710 [ 4212.482251][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.482251][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.482251][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.482251][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.482251][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.482251][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.482251][ T10] [ 4212.484450][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4212.484450][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.484450][ T10] ipv6_find_idev+0x102/0x170 [ 4212.484450][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.484450][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.484450][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.484450][ T10] netlink_unicast+0x449/0x710 [ 4212.484450][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.484450][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.484450][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.484450][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.484450][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.484450][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.484450][ T10] [ 4212.486155][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4212.486155][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.486155][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.486155][ T10] ipv6_find_idev+0x102/0x170 [ 4212.486155][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.486155][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.486155][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.486155][ T10] netlink_unicast+0x449/0x710 [ 4212.486155][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.486155][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.486155][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.486155][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.486155][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.486155][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.486155][ T10] [ 4212.487987][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4212.488286][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4212.488286][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.488286][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.488286][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.488286][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.488286][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.488286][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.488286][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.488286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.488286][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.488286][ T10] netlink_unicast+0x449/0x710 [ 4212.488286][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.488286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.488286][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.488286][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.488286][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.488286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.488286][ T10] [ 4212.490463][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4212.490463][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.490463][ T10] ipv6_find_idev+0x102/0x170 [ 4212.490463][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.490463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.490463][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.490463][ T10] netlink_unicast+0x449/0x710 [ 4212.490463][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.490463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.490463][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.490463][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.490463][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.490463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.490463][ T10] [ 4212.492145][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4212.492145][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.492145][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.492145][ T10] ipv6_find_idev+0x102/0x170 [ 4212.492145][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.492145][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.492145][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.492145][ T10] netlink_unicast+0x449/0x710 [ 4212.492145][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.492145][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.492145][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.492145][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.492145][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.492145][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.492145][ T10] [ 4212.493967][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4212.494245][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4212.494245][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.494245][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.494245][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.494245][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.494245][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.494245][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.494245][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.494245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.494245][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.494245][ T10] netlink_unicast+0x449/0x710 [ 4212.494245][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.494245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.494245][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.494245][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.494245][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.494245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.494245][ T10] [ 4212.496432][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4212.496432][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.496432][ T10] ipv6_find_idev+0x102/0x170 [ 4212.496432][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.496432][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.496432][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.496432][ T10] netlink_unicast+0x449/0x710 [ 4212.496432][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.496432][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.496432][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.496432][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.496432][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.496432][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.496432][ T10] [ 4212.498617][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4212.498617][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.498617][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.498617][ T10] ipv6_find_idev+0x102/0x170 [ 4212.498617][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.498617][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.498617][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.498617][ T10] netlink_unicast+0x449/0x710 [ 4212.498617][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.498617][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.498617][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.498617][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.498617][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.498617][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.498617][ T10] [ 4212.500863][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4212.501148][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4212.501148][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.501148][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.501148][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.501148][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.501148][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.501148][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.501148][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.501148][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.501148][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.501148][ T10] netlink_unicast+0x449/0x710 [ 4212.501148][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.501148][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.501148][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.501148][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.501148][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.501148][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.501148][ T10] [ 4212.503324][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4212.503324][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.503324][ T10] ipv6_find_idev+0x102/0x170 [ 4212.503324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.503324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.503324][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.503324][ T10] netlink_unicast+0x449/0x710 [ 4212.503324][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.503324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.503324][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.503324][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.503324][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.503324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.503324][ T10] [ 4212.504988][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4212.504988][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.504988][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.504988][ T10] ipv6_find_idev+0x102/0x170 [ 4212.504988][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.504988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.504988][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.504988][ T10] netlink_unicast+0x449/0x710 [ 4212.504988][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.504988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.504988][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.504988][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.504988][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.504988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.504988][ T10] [ 4212.506889][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4212.507171][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4212.507171][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.507171][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.507171][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.507171][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.507171][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.507171][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.507171][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.507171][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.507171][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.507171][ T10] netlink_unicast+0x449/0x710 [ 4212.507171][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.507171][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.507171][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.507171][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.507171][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.507171][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.507171][ T10] [ 4212.509524][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4212.509524][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.509524][ T10] ipv6_find_idev+0x102/0x170 [ 4212.509524][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.509524][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.509524][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.509524][ T10] netlink_unicast+0x449/0x710 [ 4212.509524][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.509524][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.509524][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.509524][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.509524][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.509524][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.509524][ T10] [ 4212.511401][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4212.511401][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.511401][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.511401][ T10] ipv6_find_idev+0x102/0x170 [ 4212.511401][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.511401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.511401][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.511401][ T10] netlink_unicast+0x449/0x710 [ 4212.511401][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.511401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.511401][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.511401][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.511401][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.511401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.511401][ T10] [ 4212.513510][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4212.513848][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4212.513848][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.513848][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.513848][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.513848][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.513848][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.513848][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.513848][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.513848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.513848][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.513848][ T10] netlink_unicast+0x449/0x710 [ 4212.513848][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.513848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.513848][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.513848][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.513848][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.513848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.513848][ T10] [ 4212.516137][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4212.516137][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.516137][ T10] ipv6_find_idev+0x102/0x170 [ 4212.516137][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.516137][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.516137][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.516137][ T10] netlink_unicast+0x449/0x710 [ 4212.516137][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.516137][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.516137][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.516137][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.516137][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.516137][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.516137][ T10] [ 4212.517989][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4212.517989][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.517989][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.517989][ T10] ipv6_find_idev+0x102/0x170 [ 4212.517989][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.517989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.517989][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.517989][ T10] netlink_unicast+0x449/0x710 [ 4212.517989][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.517989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.517989][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.517989][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.517989][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.517989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.517989][ T10] [ 4212.520027][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4212.520308][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4212.520308][ T10] netdev_get_by_index+0x5e/0x80 [ 4212.520308][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4212.520308][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4212.520308][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4212.520308][ T10] ipv6_add_addr+0x411/0x2000 [ 4212.520308][ T10] inet6_addr_add+0x30e/0xa40 [ 4212.520308][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4212.520308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.520308][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.520308][ T10] netlink_unicast+0x449/0x710 [ 4212.520308][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.520308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.520308][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.520308][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.520308][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.520308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.520308][ T10] [ 4212.522733][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4212.522733][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4212.522733][ T10] ipv6_find_idev+0x102/0x170 [ 4212.522733][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.522733][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.522733][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.522733][ T10] netlink_unicast+0x449/0x710 [ 4212.522733][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.522733][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.522733][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.522733][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.522733][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.522733][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.522733][ T10] [ 4212.524642][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4212.524642][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4212.524642][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4212.524642][ T10] ipv6_find_idev+0x102/0x170 [ 4212.524642][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4212.524642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4212.524642][ T10] netlink_rcv_skb+0x130/0x360 [ 4212.524642][ T10] netlink_unicast+0x449/0x710 [ 4212.524642][ T10] netlink_sendmsg+0x723/0xbe0 [ 4212.524642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4212.524642][ T10] ___sys_sendmsg+0xee/0x170 [ 4212.524642][ T10] __sys_sendmsg+0xcd/0x170 [ 4212.524642][ T10] do_syscall_64+0xc6/0x1e0 [ 4212.524642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4212.524642][ T10] [ 4222.675792][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4222.676326][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4222.676326][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.676326][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.676326][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.676326][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.676326][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.676326][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.676326][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.676326][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.676326][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.676326][ T10] netlink_unicast+0x449/0x710 [ 4222.676326][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.676326][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.676326][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.676326][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.676326][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.676326][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.676326][ T10] [ 4222.678594][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4222.678594][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.678594][ T10] ipv6_find_idev+0x102/0x170 [ 4222.678594][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.678594][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.678594][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.678594][ T10] netlink_unicast+0x449/0x710 [ 4222.678594][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.678594][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.678594][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.678594][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.678594][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.678594][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.678594][ T10] [ 4222.680311][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4222.680311][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.680311][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.680311][ T10] ipv6_find_idev+0x102/0x170 [ 4222.680311][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.680311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.680311][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.680311][ T10] netlink_unicast+0x449/0x710 [ 4222.680311][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.680311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.680311][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.680311][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.680311][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.680311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.680311][ T10] [ 4222.682212][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4222.682517][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4222.682517][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.682517][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.682517][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.682517][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.682517][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.682517][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.682517][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.682517][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.682517][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.682517][ T10] netlink_unicast+0x449/0x710 [ 4222.682517][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.682517][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.682517][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.682517][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.682517][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.682517][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.682517][ T10] [ 4222.684777][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4222.684777][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.684777][ T10] ipv6_find_idev+0x102/0x170 [ 4222.684777][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.684777][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.684777][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.684777][ T10] netlink_unicast+0x449/0x710 [ 4222.684777][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.684777][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.684777][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.684777][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.684777][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.684777][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.684777][ T10] [ 4222.686490][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4222.686490][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.686490][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.686490][ T10] ipv6_find_idev+0x102/0x170 [ 4222.686490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.686490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.686490][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.686490][ T10] netlink_unicast+0x449/0x710 [ 4222.686490][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.686490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.686490][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.686490][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.686490][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.686490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.686490][ T10] [ 4222.688503][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4222.688812][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4222.688812][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.688812][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.688812][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.688812][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.688812][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.688812][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.688812][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.688812][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.688812][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.688812][ T10] netlink_unicast+0x449/0x710 [ 4222.688812][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.688812][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.688812][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.688812][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.688812][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.688812][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.688812][ T10] [ 4222.691053][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4222.691053][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.691053][ T10] ipv6_find_idev+0x102/0x170 [ 4222.691053][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.691053][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.691053][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.691053][ T10] netlink_unicast+0x449/0x710 [ 4222.691053][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.691053][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.691053][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.691053][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.691053][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.691053][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.691053][ T10] [ 4222.692758][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4222.692758][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.692758][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.692758][ T10] ipv6_find_idev+0x102/0x170 [ 4222.692758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.692758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.692758][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.692758][ T10] netlink_unicast+0x449/0x710 [ 4222.692758][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.692758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.692758][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.692758][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.692758][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.692758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.692758][ T10] [ 4222.694633][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4222.695365][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4222.695365][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.695365][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.695365][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.695365][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.695365][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.695365][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.695365][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.695365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.695365][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.695365][ T10] netlink_unicast+0x449/0x710 [ 4222.695365][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.695365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.695365][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.695365][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.695365][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.695365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.695365][ T10] [ 4222.697589][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4222.697589][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.697589][ T10] ipv6_find_idev+0x102/0x170 [ 4222.697589][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.697589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.697589][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.697589][ T10] netlink_unicast+0x449/0x710 [ 4222.697589][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.697589][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.697589][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.697589][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.697589][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.697589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.697589][ T10] [ 4222.699303][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4222.699303][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.699303][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.699303][ T10] ipv6_find_idev+0x102/0x170 [ 4222.699303][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.699303][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.699303][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.699303][ T10] netlink_unicast+0x449/0x710 [ 4222.699303][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.699303][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.699303][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.699303][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.699303][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.699303][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.699303][ T10] [ 4222.701254][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4222.701596][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4222.701596][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.701596][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.701596][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.701596][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.701596][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.701596][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.701596][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.701596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.701596][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.701596][ T10] netlink_unicast+0x449/0x710 [ 4222.701596][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.701596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.701596][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.701596][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.701596][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.701596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.701596][ T10] [ 4222.703832][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4222.703832][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.703832][ T10] ipv6_find_idev+0x102/0x170 [ 4222.703832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.703832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.703832][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.703832][ T10] netlink_unicast+0x449/0x710 [ 4222.703832][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.703832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.703832][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.703832][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.703832][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.703832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.703832][ T10] [ 4222.705559][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4222.705559][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.705559][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.705559][ T10] ipv6_find_idev+0x102/0x170 [ 4222.705559][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.705559][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.705559][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.705559][ T10] netlink_unicast+0x449/0x710 [ 4222.705559][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.705559][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.705559][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.705559][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.705559][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.705559][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.705559][ T10] [ 4222.707487][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4222.707834][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4222.707834][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.707834][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.707834][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.707834][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.707834][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.707834][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.707834][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.707834][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.707834][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.707834][ T10] netlink_unicast+0x449/0x710 [ 4222.707834][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.707834][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.707834][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.707834][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.707834][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.707834][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.707834][ T10] [ 4222.710081][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4222.710081][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.710081][ T10] ipv6_find_idev+0x102/0x170 [ 4222.710081][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.710081][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.710081][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.710081][ T10] netlink_unicast+0x449/0x710 [ 4222.710081][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.710081][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.710081][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.710081][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.710081][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.710081][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.710081][ T10] [ 4222.711996][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4222.711996][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.711996][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.711996][ T10] ipv6_find_idev+0x102/0x170 [ 4222.711996][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.711996][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.711996][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.711996][ T10] netlink_unicast+0x449/0x710 [ 4222.711996][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.711996][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.711996][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.711996][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.711996][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.711996][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.711996][ T10] [ 4222.714204][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4222.714541][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4222.714541][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.714541][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.714541][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.714541][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.714541][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.714541][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.714541][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.714541][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.714541][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.714541][ T10] netlink_unicast+0x449/0x710 [ 4222.714541][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.714541][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.714541][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.714541][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.714541][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.714541][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.714541][ T10] [ 4222.716927][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4222.716927][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.716927][ T10] ipv6_find_idev+0x102/0x170 [ 4222.716927][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.716927][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.716927][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.716927][ T10] netlink_unicast+0x449/0x710 [ 4222.716927][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.716927][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.716927][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.716927][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.716927][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.716927][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.716927][ T10] [ 4222.718822][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4222.718822][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.718822][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.718822][ T10] ipv6_find_idev+0x102/0x170 [ 4222.718822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.718822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.718822][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.718822][ T10] netlink_unicast+0x449/0x710 [ 4222.718822][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.718822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.718822][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.718822][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.718822][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.718822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.718822][ T10] [ 4222.720936][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4222.721269][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4222.721269][ T10] netdev_get_by_index+0x5e/0x80 [ 4222.721269][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4222.721269][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4222.721269][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4222.721269][ T10] ipv6_add_addr+0x411/0x2000 [ 4222.721269][ T10] inet6_addr_add+0x30e/0xa40 [ 4222.721269][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4222.721269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.721269][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.721269][ T10] netlink_unicast+0x449/0x710 [ 4222.721269][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.721269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.721269][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.721269][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.721269][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.721269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.721269][ T10] [ 4222.723672][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4222.723672][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4222.723672][ T10] ipv6_find_idev+0x102/0x170 [ 4222.723672][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.723672][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.723672][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.723672][ T10] netlink_unicast+0x449/0x710 [ 4222.723672][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.723672][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.723672][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.723672][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.723672][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.723672][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.723672][ T10] [ 4222.725628][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4222.725628][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4222.725628][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4222.725628][ T10] ipv6_find_idev+0x102/0x170 [ 4222.725628][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4222.725628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4222.725628][ T10] netlink_rcv_skb+0x130/0x360 [ 4222.725628][ T10] netlink_unicast+0x449/0x710 [ 4222.725628][ T10] netlink_sendmsg+0x723/0xbe0 [ 4222.725628][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4222.725628][ T10] ___sys_sendmsg+0xee/0x170 [ 4222.725628][ T10] __sys_sendmsg+0xcd/0x170 [ 4222.725628][ T10] do_syscall_64+0xc6/0x1e0 [ 4222.725628][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4222.725628][ T10] [ 4232.859806][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4232.860316][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4232.860316][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.860316][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.860316][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.860316][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.860316][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.860316][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.860316][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.860316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.860316][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.860316][ T10] netlink_unicast+0x449/0x710 [ 4232.860316][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.860316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.860316][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.860316][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.860316][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.860316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.860316][ T10] [ 4232.862535][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4232.862535][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.862535][ T10] ipv6_find_idev+0x102/0x170 [ 4232.862535][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.862535][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.862535][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.862535][ T10] netlink_unicast+0x449/0x710 [ 4232.862535][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.862535][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.862535][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.862535][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.862535][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.862535][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.862535][ T10] [ 4232.864219][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4232.864219][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.864219][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.864219][ T10] ipv6_find_idev+0x102/0x170 [ 4232.864219][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.864219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.864219][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.864219][ T10] netlink_unicast+0x449/0x710 [ 4232.864219][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.864219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.864219][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.864219][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.864219][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.864219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.864219][ T10] [ 4232.866068][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4232.866356][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4232.866356][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.866356][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.866356][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.866356][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.866356][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.866356][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.866356][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.866356][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.866356][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.866356][ T10] netlink_unicast+0x449/0x710 [ 4232.866356][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.866356][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.866356][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.866356][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.866356][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.866356][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.866356][ T10] [ 4232.868530][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4232.868530][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.868530][ T10] ipv6_find_idev+0x102/0x170 [ 4232.868530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.868530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.868530][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.868530][ T10] netlink_unicast+0x449/0x710 [ 4232.868530][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.868530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.868530][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.868530][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.868530][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.868530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.868530][ T10] [ 4232.870204][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4232.870204][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.870204][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.870204][ T10] ipv6_find_idev+0x102/0x170 [ 4232.870204][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.870204][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.870204][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.870204][ T10] netlink_unicast+0x449/0x710 [ 4232.870204][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.870204][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.870204][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.870204][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.870204][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.870204][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.870204][ T10] [ 4232.872059][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4232.872342][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4232.872342][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.872342][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.872342][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.872342][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.872342][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.872342][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.872342][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.872342][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.872342][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.872342][ T10] netlink_unicast+0x449/0x710 [ 4232.872342][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.872342][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.872342][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.872342][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.872342][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.872342][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.872342][ T10] [ 4232.874526][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4232.874526][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.874526][ T10] ipv6_find_idev+0x102/0x170 [ 4232.874526][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.874526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.874526][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.874526][ T10] netlink_unicast+0x449/0x710 [ 4232.874526][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.874526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.874526][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.874526][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.874526][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.874526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.874526][ T10] [ 4232.876213][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4232.876213][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.876213][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.876213][ T10] ipv6_find_idev+0x102/0x170 [ 4232.876213][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.876213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.876213][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.876213][ T10] netlink_unicast+0x449/0x710 [ 4232.876213][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.876213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.876213][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.876213][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.876213][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.876213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.876213][ T10] [ 4232.878057][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4232.878338][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4232.878338][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.878338][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.878338][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.878338][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.878338][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.878338][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.878338][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.878338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.878338][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.878338][ T10] netlink_unicast+0x449/0x710 [ 4232.878338][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.878338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.878338][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.878338][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.878338][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.878338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.878338][ T10] [ 4232.880518][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4232.880518][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.880518][ T10] ipv6_find_idev+0x102/0x170 [ 4232.880518][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.880518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.880518][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.880518][ T10] netlink_unicast+0x449/0x710 [ 4232.880518][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.880518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.880518][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.880518][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.880518][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.880518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.880518][ T10] [ 4232.882192][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4232.882192][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.882192][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.882192][ T10] ipv6_find_idev+0x102/0x170 [ 4232.882192][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.882192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.882192][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.882192][ T10] netlink_unicast+0x449/0x710 [ 4232.882192][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.882192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.882192][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.882192][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.882192][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.882192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.882192][ T10] [ 4232.884034][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4232.884328][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4232.884328][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.884328][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.884328][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.884328][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.884328][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.884328][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.884328][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.884328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.884328][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.884328][ T10] netlink_unicast+0x449/0x710 [ 4232.884328][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.884328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.884328][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.884328][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.884328][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.884328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.884328][ T10] [ 4232.886512][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4232.886512][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.886512][ T10] ipv6_find_idev+0x102/0x170 [ 4232.886512][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.886512][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.886512][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.886512][ T10] netlink_unicast+0x449/0x710 [ 4232.886512][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.886512][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.886512][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.886512][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.886512][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.886512][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.886512][ T10] [ 4232.888316][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4232.888316][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.888316][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.888316][ T10] ipv6_find_idev+0x102/0x170 [ 4232.888316][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.888316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.888316][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.888316][ T10] netlink_unicast+0x449/0x710 [ 4232.888316][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.888316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.888316][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.888316][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.888316][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.888316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.888316][ T10] [ 4232.890914][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4232.891197][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4232.891197][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.891197][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.891197][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.891197][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.891197][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.891197][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.891197][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.891197][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.891197][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.891197][ T10] netlink_unicast+0x449/0x710 [ 4232.891197][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.891197][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.891197][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.891197][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.891197][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.891197][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.891197][ T10] [ 4232.893673][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4232.893673][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.893673][ T10] ipv6_find_idev+0x102/0x170 [ 4232.893673][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.893673][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.893673][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.893673][ T10] netlink_unicast+0x449/0x710 [ 4232.893673][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.893673][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.893673][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.893673][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.893673][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.893673][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.893673][ T10] [ 4232.895493][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4232.895493][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.895493][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.895493][ T10] ipv6_find_idev+0x102/0x170 [ 4232.895493][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.895493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.895493][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.895493][ T10] netlink_unicast+0x449/0x710 [ 4232.895493][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.895493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.895493][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.895493][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.895493][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.895493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.895493][ T10] [ 4232.897613][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4232.897960][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4232.897960][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.897960][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.897960][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.897960][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.897960][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.897960][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.897960][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.897960][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.897960][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.897960][ T10] netlink_unicast+0x449/0x710 [ 4232.897960][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.897960][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.897960][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.897960][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.897960][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.897960][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.897960][ T10] [ 4232.900324][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4232.900324][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.900324][ T10] ipv6_find_idev+0x102/0x170 [ 4232.900324][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.900324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.900324][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.900324][ T10] netlink_unicast+0x449/0x710 [ 4232.900324][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.900324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.900324][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.900324][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.900324][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.900324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.900324][ T10] [ 4232.902180][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4232.902180][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.902180][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.902180][ T10] ipv6_find_idev+0x102/0x170 [ 4232.902180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.902180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.902180][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.902180][ T10] netlink_unicast+0x449/0x710 [ 4232.902180][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.902180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.902180][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.902180][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.902180][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.902180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.902180][ T10] [ 4232.904290][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4232.904572][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4232.904572][ T10] netdev_get_by_index+0x5e/0x80 [ 4232.904572][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4232.904572][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4232.904572][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4232.904572][ T10] ipv6_add_addr+0x411/0x2000 [ 4232.904572][ T10] inet6_addr_add+0x30e/0xa40 [ 4232.904572][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.904572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.904572][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.904572][ T10] netlink_unicast+0x449/0x710 [ 4232.904572][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.904572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.904572][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.904572][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.904572][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.904572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.904572][ T10] [ 4232.907009][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4232.907009][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4232.907009][ T10] ipv6_find_idev+0x102/0x170 [ 4232.907009][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.907009][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.907009][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.907009][ T10] netlink_unicast+0x449/0x710 [ 4232.907009][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.907009][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.907009][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.907009][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.907009][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.907009][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.907009][ T10] [ 4232.908872][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4232.908872][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4232.908872][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4232.908872][ T10] ipv6_find_idev+0x102/0x170 [ 4232.908872][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.908872][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.908872][ T10] netlink_rcv_skb+0x130/0x360 [ 4232.908872][ T10] netlink_unicast+0x449/0x710 [ 4232.908872][ T10] netlink_sendmsg+0x723/0xbe0 [ 4232.908872][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4232.908872][ T10] ___sys_sendmsg+0xee/0x170 [ 4232.908872][ T10] __sys_sendmsg+0xcd/0x170 [ 4232.908872][ T10] do_syscall_64+0xc6/0x1e0 [ 4232.908872][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.908872][ T10] [ 4243.147789][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4243.148297][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4243.148297][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.148297][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.148297][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.148297][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.148297][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.148297][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.148297][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.148297][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.148297][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.148297][ T10] netlink_unicast+0x449/0x710 [ 4243.148297][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.148297][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.148297][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.148297][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.148297][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.148297][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.148297][ T10] [ 4243.150520][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4243.150520][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.150520][ T10] ipv6_find_idev+0x102/0x170 [ 4243.150520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.150520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.150520][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.150520][ T10] netlink_unicast+0x449/0x710 [ 4243.150520][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.150520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.150520][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.150520][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.150520][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.150520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.150520][ T10] [ 4243.152209][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4243.152209][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.152209][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.152209][ T10] ipv6_find_idev+0x102/0x170 [ 4243.152209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.152209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.152209][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.152209][ T10] netlink_unicast+0x449/0x710 [ 4243.152209][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.152209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.152209][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.152209][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.152209][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.152209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.152209][ T10] [ 4243.154051][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4243.154344][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4243.154344][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.154344][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.154344][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.154344][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.154344][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.154344][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.154344][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.154344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.154344][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.154344][ T10] netlink_unicast+0x449/0x710 [ 4243.154344][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.154344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.154344][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.154344][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.154344][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.154344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.154344][ T10] [ 4243.156533][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4243.156533][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.156533][ T10] ipv6_find_idev+0x102/0x170 [ 4243.156533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.156533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.156533][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.156533][ T10] netlink_unicast+0x449/0x710 [ 4243.156533][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.156533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.156533][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.156533][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.156533][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.156533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.156533][ T10] [ 4243.158240][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4243.158240][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.158240][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.158240][ T10] ipv6_find_idev+0x102/0x170 [ 4243.158240][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.158240][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.158240][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.158240][ T10] netlink_unicast+0x449/0x710 [ 4243.158240][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.158240][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.158240][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.158240][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.158240][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.158240][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.158240][ T10] [ 4243.160088][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4243.160384][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4243.160384][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.160384][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.160384][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.160384][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.160384][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.160384][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.160384][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.160384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.160384][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.160384][ T10] netlink_unicast+0x449/0x710 [ 4243.160384][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.160384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.160384][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.160384][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.160384][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.160384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.160384][ T10] [ 4243.162574][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4243.162574][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.162574][ T10] ipv6_find_idev+0x102/0x170 [ 4243.162574][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.162574][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.162574][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.162574][ T10] netlink_unicast+0x449/0x710 [ 4243.162574][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.162574][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.162574][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.162574][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.162574][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.162574][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.162574][ T10] [ 4243.164278][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4243.164278][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.164278][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.164278][ T10] ipv6_find_idev+0x102/0x170 [ 4243.164278][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.164278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.164278][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.164278][ T10] netlink_unicast+0x449/0x710 [ 4243.164278][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.164278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.164278][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.164278][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.164278][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.164278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.164278][ T10] [ 4243.166108][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4243.166388][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4243.166388][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.166388][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.166388][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.166388][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.166388][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.166388][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.166388][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.166388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.166388][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.166388][ T10] netlink_unicast+0x449/0x710 [ 4243.166388][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.166388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.166388][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.166388][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.166388][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.166388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.166388][ T10] [ 4243.168576][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4243.168576][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.168576][ T10] ipv6_find_idev+0x102/0x170 [ 4243.168576][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.168576][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.168576][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.168576][ T10] netlink_unicast+0x449/0x710 [ 4243.168576][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.168576][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.168576][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.168576][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.168576][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.168576][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.168576][ T10] [ 4243.170250][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4243.170250][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.170250][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.170250][ T10] ipv6_find_idev+0x102/0x170 [ 4243.170250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.170250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.170250][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.170250][ T10] netlink_unicast+0x449/0x710 [ 4243.170250][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.170250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.170250][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.170250][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.170250][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.170250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.170250][ T10] [ 4243.172478][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4243.173103][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4243.173103][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.173103][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.173103][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.173103][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.173103][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.173103][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.173103][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.173103][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.173103][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.173103][ T10] netlink_unicast+0x449/0x710 [ 4243.173103][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.173103][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.173103][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.173103][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.173103][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.173103][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.173103][ T10] [ 4243.175286][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4243.175286][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.175286][ T10] ipv6_find_idev+0x102/0x170 [ 4243.175286][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.175286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.175286][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.175286][ T10] netlink_unicast+0x449/0x710 [ 4243.175286][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.175286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.175286][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.175286][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.175286][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.175286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.175286][ T10] [ 4243.176949][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4243.176949][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.176949][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.176949][ T10] ipv6_find_idev+0x102/0x170 [ 4243.176949][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.176949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.176949][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.176949][ T10] netlink_unicast+0x449/0x710 [ 4243.176949][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.176949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.176949][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.176949][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.176949][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.176949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.176949][ T10] [ 4243.178768][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4243.179049][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4243.179049][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.179049][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.179049][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.179049][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.179049][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.179049][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.179049][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.179049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.179049][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.179049][ T10] netlink_unicast+0x449/0x710 [ 4243.179049][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.179049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.179049][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.179049][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.179049][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.179049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.179049][ T10] [ 4243.181250][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4243.181250][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.181250][ T10] ipv6_find_idev+0x102/0x170 [ 4243.181250][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.181250][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.181250][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.181250][ T10] netlink_unicast+0x449/0x710 [ 4243.181250][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.181250][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.181250][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.181250][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.181250][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.181250][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.181250][ T10] [ 4243.183051][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4243.183051][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.183051][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.183051][ T10] ipv6_find_idev+0x102/0x170 [ 4243.183051][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.183051][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.183051][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.183051][ T10] netlink_unicast+0x449/0x710 [ 4243.183051][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.183051][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.183051][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.183051][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.183051][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.183051][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.183051][ T10] [ 4243.185190][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4243.185474][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4243.185474][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.185474][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.185474][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.185474][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.185474][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.185474][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.185474][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.185474][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.185474][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.185474][ T10] netlink_unicast+0x449/0x710 [ 4243.185474][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.185474][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.185474][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.185474][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.185474][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.185474][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.185474][ T10] [ 4243.187781][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4243.187781][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.187781][ T10] ipv6_find_idev+0x102/0x170 [ 4243.187781][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.187781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.187781][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.187781][ T10] netlink_unicast+0x449/0x710 [ 4243.187781][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.187781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.187781][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.187781][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.187781][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.187781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.187781][ T10] [ 4243.189630][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4243.189630][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.189630][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.189630][ T10] ipv6_find_idev+0x102/0x170 [ 4243.189630][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.189630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.189630][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.189630][ T10] netlink_unicast+0x449/0x710 [ 4243.189630][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.189630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.189630][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.189630][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.189630][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.189630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.189630][ T10] [ 4243.191748][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4243.192087][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4243.192087][ T10] netdev_get_by_index+0x5e/0x80 [ 4243.192087][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4243.192087][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4243.192087][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4243.192087][ T10] ipv6_add_addr+0x411/0x2000 [ 4243.192087][ T10] inet6_addr_add+0x30e/0xa40 [ 4243.192087][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4243.192087][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.192087][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.192087][ T10] netlink_unicast+0x449/0x710 [ 4243.192087][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.192087][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.192087][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.192087][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.192087][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.192087][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.192087][ T10] [ 4243.194430][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4243.194430][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4243.194430][ T10] ipv6_find_idev+0x102/0x170 [ 4243.194430][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.194430][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.194430][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.194430][ T10] netlink_unicast+0x449/0x710 [ 4243.194430][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.194430][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.194430][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.194430][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.194430][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.194430][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.194430][ T10] [ 4243.196344][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4243.196344][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4243.196344][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4243.196344][ T10] ipv6_find_idev+0x102/0x170 [ 4243.196344][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4243.196344][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4243.196344][ T10] netlink_rcv_skb+0x130/0x360 [ 4243.196344][ T10] netlink_unicast+0x449/0x710 [ 4243.196344][ T10] netlink_sendmsg+0x723/0xbe0 [ 4243.196344][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4243.196344][ T10] ___sys_sendmsg+0xee/0x170 [ 4243.196344][ T10] __sys_sendmsg+0xcd/0x170 [ 4243.196344][ T10] do_syscall_64+0xc6/0x1e0 [ 4243.196344][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4243.196344][ T10] [ 4253.435774][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4253.436295][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4253.436295][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.436295][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.436295][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.436295][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.436295][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.436295][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.436295][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.436295][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.436295][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.436295][ T10] netlink_unicast+0x449/0x710 [ 4253.436295][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.436295][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.436295][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.436295][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.436295][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.436295][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.436295][ T10] [ 4253.438501][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4253.438501][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.438501][ T10] ipv6_find_idev+0x102/0x170 [ 4253.438501][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.438501][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.438501][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.438501][ T10] netlink_unicast+0x449/0x710 [ 4253.438501][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.438501][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.438501][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.438501][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.438501][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.438501][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.438501][ T10] [ 4253.440188][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4253.440188][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.440188][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.440188][ T10] ipv6_find_idev+0x102/0x170 [ 4253.440188][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.440188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.440188][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.440188][ T10] netlink_unicast+0x449/0x710 [ 4253.440188][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.440188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.440188][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.440188][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.440188][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.440188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.440188][ T10] [ 4253.442045][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4253.442336][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4253.442336][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.442336][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.442336][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.442336][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.442336][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.442336][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.442336][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.442336][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.442336][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.442336][ T10] netlink_unicast+0x449/0x710 [ 4253.442336][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.442336][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.442336][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.442336][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.442336][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.442336][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.442336][ T10] [ 4253.444521][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4253.444521][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.444521][ T10] ipv6_find_idev+0x102/0x170 [ 4253.444521][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.444521][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.444521][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.444521][ T10] netlink_unicast+0x449/0x710 [ 4253.444521][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.444521][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.444521][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.444521][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.444521][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.444521][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.444521][ T10] [ 4253.446195][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4253.446195][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.446195][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.446195][ T10] ipv6_find_idev+0x102/0x170 [ 4253.446195][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.446195][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.446195][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.446195][ T10] netlink_unicast+0x449/0x710 [ 4253.446195][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.446195][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.446195][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.446195][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.446195][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.446195][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.446195][ T10] [ 4253.448029][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4253.448321][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4253.448321][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.448321][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.448321][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.448321][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.448321][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.448321][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.448321][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.448321][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.448321][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.448321][ T10] netlink_unicast+0x449/0x710 [ 4253.448321][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.448321][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.448321][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.448321][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.448321][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.448321][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.448321][ T10] [ 4253.450513][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4253.450513][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.450513][ T10] ipv6_find_idev+0x102/0x170 [ 4253.450513][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.450513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.450513][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.450513][ T10] netlink_unicast+0x449/0x710 [ 4253.450513][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.450513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.450513][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.450513][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.450513][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.450513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.450513][ T10] [ 4253.452188][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4253.452188][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.452188][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.452188][ T10] ipv6_find_idev+0x102/0x170 [ 4253.452188][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.452188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.452188][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.452188][ T10] netlink_unicast+0x449/0x710 [ 4253.452188][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.452188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.452188][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.452188][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.452188][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.452188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.452188][ T10] [ 4253.454027][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4253.454307][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4253.454307][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.454307][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.454307][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.454307][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.454307][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.454307][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.454307][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.454307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.454307][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.454307][ T10] netlink_unicast+0x449/0x710 [ 4253.454307][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.454307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.454307][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.454307][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.454307][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.454307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.454307][ T10] [ 4253.456518][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4253.456518][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.456518][ T10] ipv6_find_idev+0x102/0x170 [ 4253.456518][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.456518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.456518][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.456518][ T10] netlink_unicast+0x449/0x710 [ 4253.456518][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.456518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.456518][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.456518][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.456518][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.456518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.456518][ T10] [ 4253.458209][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4253.458209][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.458209][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.458209][ T10] ipv6_find_idev+0x102/0x170 [ 4253.458209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.458209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.458209][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.458209][ T10] netlink_unicast+0x449/0x710 [ 4253.458209][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.458209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.458209][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.458209][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.458209][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.458209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.458209][ T10] [ 4253.460470][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4253.461086][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4253.461086][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.461086][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.461086][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.461086][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.461086][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.461086][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.461086][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.461086][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.461086][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.461086][ T10] netlink_unicast+0x449/0x710 [ 4253.461086][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.461086][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.461086][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.461086][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.461086][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.461086][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.461086][ T10] [ 4253.463286][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4253.463286][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.463286][ T10] ipv6_find_idev+0x102/0x170 [ 4253.463286][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.463286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.463286][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.463286][ T10] netlink_unicast+0x449/0x710 [ 4253.463286][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.463286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.463286][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.463286][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.463286][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.463286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.463286][ T10] [ 4253.464997][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4253.464997][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.464997][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.464997][ T10] ipv6_find_idev+0x102/0x170 [ 4253.464997][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.464997][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.464997][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.464997][ T10] netlink_unicast+0x449/0x710 [ 4253.464997][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.464997][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.464997][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.464997][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.464997][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.464997][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.464997][ T10] [ 4253.466839][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4253.467124][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4253.467124][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.467124][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.467124][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.467124][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.467124][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.467124][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.467124][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.467124][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.467124][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.467124][ T10] netlink_unicast+0x449/0x710 [ 4253.467124][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.467124][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.467124][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.467124][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.467124][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.467124][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.467124][ T10] [ 4253.469296][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4253.469296][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.469296][ T10] ipv6_find_idev+0x102/0x170 [ 4253.469296][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.469296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.469296][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.469296][ T10] netlink_unicast+0x449/0x710 [ 4253.469296][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.469296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.469296][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.469296][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.469296][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.469296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.469296][ T10] [ 4253.471107][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4253.471107][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.471107][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.471107][ T10] ipv6_find_idev+0x102/0x170 [ 4253.471107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.471107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.471107][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.471107][ T10] netlink_unicast+0x449/0x710 [ 4253.471107][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.471107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.471107][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.471107][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.471107][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.471107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.471107][ T10] [ 4253.473226][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4253.473507][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4253.473507][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.473507][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.473507][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.473507][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.473507][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.473507][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.473507][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.473507][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.473507][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.473507][ T10] netlink_unicast+0x449/0x710 [ 4253.473507][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.473507][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.473507][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.473507][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.473507][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.473507][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.473507][ T10] [ 4253.475799][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4253.475799][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.475799][ T10] ipv6_find_idev+0x102/0x170 [ 4253.475799][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.475799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.475799][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.475799][ T10] netlink_unicast+0x449/0x710 [ 4253.475799][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.475799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.475799][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.475799][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.475799][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.475799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.475799][ T10] [ 4253.477651][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4253.477651][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.477651][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.477651][ T10] ipv6_find_idev+0x102/0x170 [ 4253.477651][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.477651][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.477651][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.477651][ T10] netlink_unicast+0x449/0x710 [ 4253.477651][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.477651][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.477651][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.477651][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.477651][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.477651][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.477651][ T10] [ 4253.479742][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4253.480071][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4253.480071][ T10] netdev_get_by_index+0x5e/0x80 [ 4253.480071][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4253.480071][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4253.480071][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4253.480071][ T10] ipv6_add_addr+0x411/0x2000 [ 4253.480071][ T10] inet6_addr_add+0x30e/0xa40 [ 4253.480071][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4253.480071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.480071][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.480071][ T10] netlink_unicast+0x449/0x710 [ 4253.480071][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.480071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.480071][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.480071][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.480071][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.480071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.480071][ T10] [ 4253.482438][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4253.482438][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4253.482438][ T10] ipv6_find_idev+0x102/0x170 [ 4253.482438][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.482438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.482438][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.482438][ T10] netlink_unicast+0x449/0x710 [ 4253.482438][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.482438][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.482438][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.482438][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.482438][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.482438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.482438][ T10] [ 4253.484360][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4253.484360][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4253.484360][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4253.484360][ T10] ipv6_find_idev+0x102/0x170 [ 4253.484360][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4253.484360][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4253.484360][ T10] netlink_rcv_skb+0x130/0x360 [ 4253.484360][ T10] netlink_unicast+0x449/0x710 [ 4253.484360][ T10] netlink_sendmsg+0x723/0xbe0 [ 4253.484360][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4253.484360][ T10] ___sys_sendmsg+0xee/0x170 [ 4253.484360][ T10] __sys_sendmsg+0xcd/0x170 [ 4253.484360][ T10] do_syscall_64+0xc6/0x1e0 [ 4253.484360][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4253.484360][ T10] [ 4263.491776][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4263.492279][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4263.492279][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.492279][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.492279][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.492279][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.492279][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.492279][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.492279][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.492279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.492279][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.492279][ T10] netlink_unicast+0x449/0x710 [ 4263.492279][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.492279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.492279][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.492279][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.492279][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.492279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.492279][ T10] [ 4263.494509][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4263.494509][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.494509][ T10] ipv6_find_idev+0x102/0x170 [ 4263.494509][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.494509][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.494509][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.494509][ T10] netlink_unicast+0x449/0x710 [ 4263.494509][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.494509][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.494509][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.494509][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.494509][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.494509][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.494509][ T10] [ 4263.496203][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4263.496203][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.496203][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.496203][ T10] ipv6_find_idev+0x102/0x170 [ 4263.496203][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.496203][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.496203][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.496203][ T10] netlink_unicast+0x449/0x710 [ 4263.496203][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.496203][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.496203][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.496203][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.496203][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.496203][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.496203][ T10] [ 4263.498045][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4263.498337][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4263.498337][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.498337][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.498337][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.498337][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.498337][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.498337][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.498337][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.498337][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.498337][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.498337][ T10] netlink_unicast+0x449/0x710 [ 4263.498337][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.498337][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.498337][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.498337][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.498337][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.498337][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.498337][ T10] [ 4263.500520][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4263.500520][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.500520][ T10] ipv6_find_idev+0x102/0x170 [ 4263.500520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.500520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.500520][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.500520][ T10] netlink_unicast+0x449/0x710 [ 4263.500520][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.500520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.500520][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.500520][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.500520][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.500520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.500520][ T10] [ 4263.502198][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4263.502198][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.502198][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.502198][ T10] ipv6_find_idev+0x102/0x170 [ 4263.502198][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.502198][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.502198][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.502198][ T10] netlink_unicast+0x449/0x710 [ 4263.502198][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.502198][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.502198][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.502198][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.502198][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.502198][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.502198][ T10] [ 4263.504040][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4263.504335][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4263.504335][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.504335][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.504335][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.504335][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.504335][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.504335][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.504335][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.504335][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.504335][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.504335][ T10] netlink_unicast+0x449/0x710 [ 4263.504335][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.504335][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.504335][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.504335][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.504335][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.504335][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.504335][ T10] [ 4263.506497][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4263.506497][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.506497][ T10] ipv6_find_idev+0x102/0x170 [ 4263.506497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.506497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.506497][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.506497][ T10] netlink_unicast+0x449/0x710 [ 4263.506497][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.506497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.506497][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.506497][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.506497][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.506497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.506497][ T10] [ 4263.508178][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4263.508178][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.508178][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.508178][ T10] ipv6_find_idev+0x102/0x170 [ 4263.508178][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.508178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.508178][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.508178][ T10] netlink_unicast+0x449/0x710 [ 4263.508178][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.508178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.508178][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.508178][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.508178][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.508178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.508178][ T10] [ 4263.510006][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4263.510286][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4263.510286][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.510286][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.510286][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.510286][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.510286][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.510286][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.510286][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.510286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.510286][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.510286][ T10] netlink_unicast+0x449/0x710 [ 4263.510286][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.510286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.510286][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.510286][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.510286][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.510286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.510286][ T10] [ 4263.512451][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4263.512451][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.512451][ T10] ipv6_find_idev+0x102/0x170 [ 4263.512451][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.512451][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.512451][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.512451][ T10] netlink_unicast+0x449/0x710 [ 4263.512451][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.512451][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.512451][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.512451][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.512451][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.512451][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.512451][ T10] [ 4263.514128][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4263.514128][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.514128][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.514128][ T10] ipv6_find_idev+0x102/0x170 [ 4263.514128][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.514128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.514128][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.514128][ T10] netlink_unicast+0x449/0x710 [ 4263.514128][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.514128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.514128][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.514128][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.514128][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.514128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.514128][ T10] [ 4263.515955][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4263.516243][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4263.516243][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.516243][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.516243][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.516243][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.516243][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.516243][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.516243][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.516243][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.516243][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.516243][ T10] netlink_unicast+0x449/0x710 [ 4263.516243][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.516243][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.516243][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.516243][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.516243][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.516243][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.516243][ T10] [ 4263.518413][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4263.518413][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.518413][ T10] ipv6_find_idev+0x102/0x170 [ 4263.518413][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.518413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.518413][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.518413][ T10] netlink_unicast+0x449/0x710 [ 4263.518413][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.518413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.518413][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.518413][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.518413][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.518413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.518413][ T10] [ 4263.520216][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4263.520216][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.520216][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.520216][ T10] ipv6_find_idev+0x102/0x170 [ 4263.520216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.520216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.520216][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.520216][ T10] netlink_unicast+0x449/0x710 [ 4263.520216][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.520216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.520216][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.520216][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.520216][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.520216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.520216][ T10] [ 4263.522354][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4263.522632][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4263.522632][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.522632][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.522632][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.522632][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.522632][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.522632][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.522632][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.522632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.522632][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.522632][ T10] netlink_unicast+0x449/0x710 [ 4263.522632][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.522632][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.522632][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.522632][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.522632][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.522632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.522632][ T10] [ 4263.524972][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4263.524972][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.524972][ T10] ipv6_find_idev+0x102/0x170 [ 4263.524972][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.524972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.524972][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.524972][ T10] netlink_unicast+0x449/0x710 [ 4263.524972][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.524972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.524972][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.524972][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.524972][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.524972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.524972][ T10] [ 4263.526836][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4263.526836][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.526836][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.526836][ T10] ipv6_find_idev+0x102/0x170 [ 4263.526836][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.526836][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.526836][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.526836][ T10] netlink_unicast+0x449/0x710 [ 4263.526836][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.526836][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.526836][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.526836][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.526836][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.526836][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.526836][ T10] [ 4263.528953][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4263.529235][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4263.529235][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.529235][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.529235][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.529235][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.529235][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.529235][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.529235][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.529235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.529235][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.529235][ T10] netlink_unicast+0x449/0x710 [ 4263.529235][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.529235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.529235][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.529235][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.529235][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.529235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.529235][ T10] [ 4263.531579][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4263.531579][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.531579][ T10] ipv6_find_idev+0x102/0x170 [ 4263.531579][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.531579][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.531579][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.531579][ T10] netlink_unicast+0x449/0x710 [ 4263.531579][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.531579][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.531579][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.531579][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.531579][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.531579][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.531579][ T10] [ 4263.533473][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4263.533473][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.533473][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.533473][ T10] ipv6_find_idev+0x102/0x170 [ 4263.533473][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.533473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.533473][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.533473][ T10] netlink_unicast+0x449/0x710 [ 4263.533473][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.533473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.533473][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.533473][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.533473][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.533473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.533473][ T10] [ 4263.535558][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4263.535891][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4263.535891][ T10] netdev_get_by_index+0x5e/0x80 [ 4263.535891][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4263.535891][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4263.535891][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4263.535891][ T10] ipv6_add_addr+0x411/0x2000 [ 4263.535891][ T10] inet6_addr_add+0x30e/0xa40 [ 4263.535891][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4263.535891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.535891][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.535891][ T10] netlink_unicast+0x449/0x710 [ 4263.535891][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.535891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.535891][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.535891][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.535891][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.535891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.535891][ T10] [ 4263.538238][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4263.538238][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4263.538238][ T10] ipv6_find_idev+0x102/0x170 [ 4263.538238][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.538238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.538238][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.538238][ T10] netlink_unicast+0x449/0x710 [ 4263.538238][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.538238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.538238][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.538238][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.538238][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.538238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.538238][ T10] [ 4263.540088][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4263.540088][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4263.540088][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4263.540088][ T10] ipv6_find_idev+0x102/0x170 [ 4263.540088][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4263.540088][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4263.540088][ T10] netlink_rcv_skb+0x130/0x360 [ 4263.540088][ T10] netlink_unicast+0x449/0x710 [ 4263.540088][ T10] netlink_sendmsg+0x723/0xbe0 [ 4263.540088][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4263.540088][ T10] ___sys_sendmsg+0xee/0x170 [ 4263.540088][ T10] __sys_sendmsg+0xcd/0x170 [ 4263.540088][ T10] do_syscall_64+0xc6/0x1e0 [ 4263.540088][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4263.540088][ T10] [ 4273.779749][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4273.780260][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4273.780260][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.780260][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.780260][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.780260][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.780260][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.780260][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.780260][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.780260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.780260][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.780260][ T10] netlink_unicast+0x449/0x710 [ 4273.780260][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.780260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.780260][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.780260][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.780260][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.780260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.780260][ T10] [ 4273.782493][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4273.782493][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.782493][ T10] ipv6_find_idev+0x102/0x170 [ 4273.782493][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.782493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.782493][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.782493][ T10] netlink_unicast+0x449/0x710 [ 4273.782493][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.782493][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.782493][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.782493][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.782493][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.782493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.782493][ T10] [ 4273.784207][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4273.784207][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.784207][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.784207][ T10] ipv6_find_idev+0x102/0x170 [ 4273.784207][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.784207][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.784207][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.784207][ T10] netlink_unicast+0x449/0x710 [ 4273.784207][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.784207][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.784207][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.784207][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.784207][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.784207][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.784207][ T10] [ 4273.786090][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4273.786381][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4273.786381][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.786381][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.786381][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.786381][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.786381][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.786381][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.786381][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.786381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.786381][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.786381][ T10] netlink_unicast+0x449/0x710 [ 4273.786381][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.786381][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.786381][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.786381][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.786381][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.786381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.786381][ T10] [ 4273.788575][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4273.788575][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.788575][ T10] ipv6_find_idev+0x102/0x170 [ 4273.788575][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.788575][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.788575][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.788575][ T10] netlink_unicast+0x449/0x710 [ 4273.788575][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.788575][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.788575][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.788575][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.788575][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.788575][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.788575][ T10] [ 4273.790252][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4273.790252][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.790252][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.790252][ T10] ipv6_find_idev+0x102/0x170 [ 4273.790252][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.790252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.790252][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.790252][ T10] netlink_unicast+0x449/0x710 [ 4273.790252][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.790252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.790252][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.790252][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.790252][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.790252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.790252][ T10] [ 4273.792081][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4273.792379][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4273.792379][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.792379][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.792379][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.792379][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.792379][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.792379][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.792379][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.792379][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.792379][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.792379][ T10] netlink_unicast+0x449/0x710 [ 4273.792379][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.792379][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.792379][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.792379][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.792379][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.792379][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.792379][ T10] [ 4273.794571][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4273.794571][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.794571][ T10] ipv6_find_idev+0x102/0x170 [ 4273.794571][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.794571][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.794571][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.794571][ T10] netlink_unicast+0x449/0x710 [ 4273.794571][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.794571][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.794571][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.794571][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.794571][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.794571][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.794571][ T10] [ 4273.796269][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4273.796269][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.796269][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.796269][ T10] ipv6_find_idev+0x102/0x170 [ 4273.796269][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.796269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.796269][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.796269][ T10] netlink_unicast+0x449/0x710 [ 4273.796269][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.796269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.796269][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.796269][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.796269][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.796269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.796269][ T10] [ 4273.798097][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4273.798386][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4273.798386][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.798386][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.798386][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.798386][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.798386][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.798386][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.798386][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.798386][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.798386][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.798386][ T10] netlink_unicast+0x449/0x710 [ 4273.798386][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.798386][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.798386][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.798386][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.798386][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.798386][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.798386][ T10] [ 4273.801104][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4273.801104][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.801104][ T10] ipv6_find_idev+0x102/0x170 [ 4273.801104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.801104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.801104][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.801104][ T10] netlink_unicast+0x449/0x710 [ 4273.801104][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.801104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.801104][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.801104][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.801104][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.801104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.801104][ T10] [ 4273.802817][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4273.802817][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.802817][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.802817][ T10] ipv6_find_idev+0x102/0x170 [ 4273.802817][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.802817][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.802817][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.802817][ T10] netlink_unicast+0x449/0x710 [ 4273.802817][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.802817][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.802817][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.802817][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.802817][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.802817][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.802817][ T10] [ 4273.805088][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4273.805373][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4273.805373][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.805373][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.805373][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.805373][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.805373][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.805373][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.805373][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.805373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.805373][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.805373][ T10] netlink_unicast+0x449/0x710 [ 4273.805373][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.805373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.805373][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.805373][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.805373][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.805373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.805373][ T10] [ 4273.807564][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4273.807564][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.807564][ T10] ipv6_find_idev+0x102/0x170 [ 4273.807564][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.807564][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.807564][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.807564][ T10] netlink_unicast+0x449/0x710 [ 4273.807564][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.807564][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.807564][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.807564][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.807564][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.807564][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.807564][ T10] [ 4273.809263][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4273.809263][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.809263][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.809263][ T10] ipv6_find_idev+0x102/0x170 [ 4273.809263][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.809263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.809263][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.809263][ T10] netlink_unicast+0x449/0x710 [ 4273.809263][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.809263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.809263][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.809263][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.809263][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.809263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.809263][ T10] [ 4273.811161][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4273.811453][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4273.811453][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.811453][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.811453][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.811453][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.811453][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.811453][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.811453][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.811453][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.811453][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.811453][ T10] netlink_unicast+0x449/0x710 [ 4273.811453][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.811453][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.811453][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.811453][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.811453][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.811453][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.811453][ T10] [ 4273.813805][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4273.813805][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.813805][ T10] ipv6_find_idev+0x102/0x170 [ 4273.813805][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.813805][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.813805][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.813805][ T10] netlink_unicast+0x449/0x710 [ 4273.813805][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.813805][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.813805][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.813805][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.813805][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.813805][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.813805][ T10] [ 4273.816043][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4273.816043][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.816043][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.816043][ T10] ipv6_find_idev+0x102/0x170 [ 4273.816043][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.816043][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.816043][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.816043][ T10] netlink_unicast+0x449/0x710 [ 4273.816043][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.816043][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.816043][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.816043][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.816043][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.816043][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.816043][ T10] [ 4273.818088][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4273.818373][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4273.818373][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.818373][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.818373][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.818373][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.818373][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.818373][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.818373][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.818373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.818373][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.818373][ T10] netlink_unicast+0x449/0x710 [ 4273.818373][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.818373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.818373][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.818373][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.818373][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.818373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.818373][ T10] [ 4273.820738][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4273.820738][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.820738][ T10] ipv6_find_idev+0x102/0x170 [ 4273.820738][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.820738][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.820738][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.820738][ T10] netlink_unicast+0x449/0x710 [ 4273.820738][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.820738][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.820738][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.820738][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.820738][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.820738][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.820738][ T10] [ 4273.822585][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4273.822585][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.822585][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.822585][ T10] ipv6_find_idev+0x102/0x170 [ 4273.822585][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.822585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.822585][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.822585][ T10] netlink_unicast+0x449/0x710 [ 4273.822585][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.822585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.822585][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.822585][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.822585][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.822585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.822585][ T10] [ 4273.824746][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4273.825038][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4273.825038][ T10] netdev_get_by_index+0x5e/0x80 [ 4273.825038][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4273.825038][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4273.825038][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4273.825038][ T10] ipv6_add_addr+0x411/0x2000 [ 4273.825038][ T10] inet6_addr_add+0x30e/0xa40 [ 4273.825038][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4273.825038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.825038][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.825038][ T10] netlink_unicast+0x449/0x710 [ 4273.825038][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.825038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.825038][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.825038][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.825038][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.825038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.825038][ T10] [ 4273.827429][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4273.827429][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4273.827429][ T10] ipv6_find_idev+0x102/0x170 [ 4273.827429][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.827429][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.827429][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.827429][ T10] netlink_unicast+0x449/0x710 [ 4273.827429][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.827429][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.827429][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.827429][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.827429][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.827429][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.827429][ T10] [ 4273.829331][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4273.829331][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4273.829331][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4273.829331][ T10] ipv6_find_idev+0x102/0x170 [ 4273.829331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4273.829331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4273.829331][ T10] netlink_rcv_skb+0x130/0x360 [ 4273.829331][ T10] netlink_unicast+0x449/0x710 [ 4273.829331][ T10] netlink_sendmsg+0x723/0xbe0 [ 4273.829331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4273.829331][ T10] ___sys_sendmsg+0xee/0x170 [ 4273.829331][ T10] __sys_sendmsg+0xcd/0x170 [ 4273.829331][ T10] do_syscall_64+0xc6/0x1e0 [ 4273.829331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4273.829331][ T10] [ 4284.067754][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4284.068226][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4284.068226][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.068226][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.068226][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.068226][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.068226][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.068226][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.068226][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.068226][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.068226][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.068226][ T10] netlink_unicast+0x449/0x710 [ 4284.068226][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.068226][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.068226][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.068226][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.068226][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.068226][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.068226][ T10] [ 4284.070539][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4284.070539][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.070539][ T10] ipv6_find_idev+0x102/0x170 [ 4284.070539][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.070539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.070539][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.070539][ T10] netlink_unicast+0x449/0x710 [ 4284.070539][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.070539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.070539][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.070539][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.070539][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.070539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.070539][ T10] [ 4284.072276][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4284.072276][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.072276][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.072276][ T10] ipv6_find_idev+0x102/0x170 [ 4284.072276][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.072276][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.072276][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.072276][ T10] netlink_unicast+0x449/0x710 [ 4284.072276][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.072276][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.072276][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.072276][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.072276][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.072276][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.072276][ T10] [ 4284.074193][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4284.074488][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4284.074488][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.074488][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.074488][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.074488][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.074488][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.074488][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.074488][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.074488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.074488][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.074488][ T10] netlink_unicast+0x449/0x710 [ 4284.074488][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.074488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.074488][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.074488][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.074488][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.074488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.074488][ T10] [ 4284.076695][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4284.076695][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.076695][ T10] ipv6_find_idev+0x102/0x170 [ 4284.076695][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.076695][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.076695][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.076695][ T10] netlink_unicast+0x449/0x710 [ 4284.076695][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.076695][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.076695][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.076695][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.076695][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.076695][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.076695][ T10] [ 4284.078397][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4284.078397][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.078397][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.078397][ T10] ipv6_find_idev+0x102/0x170 [ 4284.078397][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.078397][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.078397][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.078397][ T10] netlink_unicast+0x449/0x710 [ 4284.078397][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.078397][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.078397][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.078397][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.078397][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.078397][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.078397][ T10] [ 4284.080288][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4284.080591][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4284.080591][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.080591][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.080591][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.080591][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.080591][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.080591][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.080591][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.080591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.080591][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.080591][ T10] netlink_unicast+0x449/0x710 [ 4284.080591][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.080591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.080591][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.080591][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.080591][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.080591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.080591][ T10] [ 4284.082857][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4284.082857][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.082857][ T10] ipv6_find_idev+0x102/0x170 [ 4284.082857][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.082857][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.082857][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.082857][ T10] netlink_unicast+0x449/0x710 [ 4284.082857][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.082857][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.082857][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.082857][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.082857][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.082857][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.082857][ T10] [ 4284.084598][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4284.084598][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.084598][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.084598][ T10] ipv6_find_idev+0x102/0x170 [ 4284.084598][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.084598][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.084598][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.084598][ T10] netlink_unicast+0x449/0x710 [ 4284.084598][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.084598][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.084598][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.084598][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.084598][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.084598][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.084598][ T10] [ 4284.086496][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4284.087229][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4284.087229][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.087229][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.087229][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.087229][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.087229][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.087229][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.087229][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.087229][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.087229][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.087229][ T10] netlink_unicast+0x449/0x710 [ 4284.087229][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.087229][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.087229][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.087229][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.087229][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.087229][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.087229][ T10] [ 4284.089445][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4284.089445][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.089445][ T10] ipv6_find_idev+0x102/0x170 [ 4284.089445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.089445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.089445][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.089445][ T10] netlink_unicast+0x449/0x710 [ 4284.089445][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.089445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.089445][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.089445][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.089445][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.089445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.089445][ T10] [ 4284.091188][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4284.091188][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.091188][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.091188][ T10] ipv6_find_idev+0x102/0x170 [ 4284.091188][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.091188][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.091188][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.091188][ T10] netlink_unicast+0x449/0x710 [ 4284.091188][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.091188][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.091188][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.091188][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.091188][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.091188][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.091188][ T10] [ 4284.093135][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4284.093473][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4284.093473][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.093473][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.093473][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.093473][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.093473][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.093473][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.093473][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.093473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.093473][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.093473][ T10] netlink_unicast+0x449/0x710 [ 4284.093473][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.093473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.093473][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.093473][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.093473][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.093473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.093473][ T10] [ 4284.095728][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4284.095728][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.095728][ T10] ipv6_find_idev+0x102/0x170 [ 4284.095728][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.095728][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.095728][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.095728][ T10] netlink_unicast+0x449/0x710 [ 4284.095728][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.095728][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.095728][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.095728][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.095728][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.095728][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.095728][ T10] [ 4284.097476][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4284.097476][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.097476][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.097476][ T10] ipv6_find_idev+0x102/0x170 [ 4284.097476][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.097476][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.097476][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.097476][ T10] netlink_unicast+0x449/0x710 [ 4284.097476][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.097476][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.097476][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.097476][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.097476][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.097476][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.097476][ T10] [ 4284.099412][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4284.099761][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4284.099761][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.099761][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.099761][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.099761][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.099761][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.099761][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.099761][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.099761][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.099761][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.099761][ T10] netlink_unicast+0x449/0x710 [ 4284.099761][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.099761][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.099761][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.099761][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.099761][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.099761][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.099761][ T10] [ 4284.102046][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4284.102046][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.102046][ T10] ipv6_find_idev+0x102/0x170 [ 4284.102046][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.102046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.102046][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.102046][ T10] netlink_unicast+0x449/0x710 [ 4284.102046][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.102046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.102046][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.102046][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.102046][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.102046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.102046][ T10] [ 4284.103962][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4284.103962][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.103962][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.103962][ T10] ipv6_find_idev+0x102/0x170 [ 4284.103962][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.103962][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.103962][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.103962][ T10] netlink_unicast+0x449/0x710 [ 4284.103962][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.103962][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.103962][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.103962][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.103962][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.103962][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.103962][ T10] [ 4284.106186][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4284.106526][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4284.106526][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.106526][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.106526][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.106526][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.106526][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.106526][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.106526][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.106526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.106526][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.106526][ T10] netlink_unicast+0x449/0x710 [ 4284.106526][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.106526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.106526][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.106526][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.106526][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.106526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.106526][ T10] [ 4284.108936][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4284.108936][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.108936][ T10] ipv6_find_idev+0x102/0x170 [ 4284.108936][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.108936][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.108936][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.108936][ T10] netlink_unicast+0x449/0x710 [ 4284.108936][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.108936][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.108936][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.108936][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.108936][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.108936][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.108936][ T10] [ 4284.110887][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4284.110887][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.110887][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.110887][ T10] ipv6_find_idev+0x102/0x170 [ 4284.110887][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.110887][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.110887][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.110887][ T10] netlink_unicast+0x449/0x710 [ 4284.110887][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.110887][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.110887][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.110887][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.110887][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.110887][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.110887][ T10] [ 4284.113004][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4284.113343][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4284.113343][ T10] netdev_get_by_index+0x5e/0x80 [ 4284.113343][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4284.113343][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4284.113343][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4284.113343][ T10] ipv6_add_addr+0x411/0x2000 [ 4284.113343][ T10] inet6_addr_add+0x30e/0xa40 [ 4284.113343][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4284.113343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.113343][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.113343][ T10] netlink_unicast+0x449/0x710 [ 4284.113343][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.113343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.113343][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.113343][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.113343][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.113343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.113343][ T10] [ 4284.115816][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4284.115816][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4284.115816][ T10] ipv6_find_idev+0x102/0x170 [ 4284.115816][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.115816][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.115816][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.115816][ T10] netlink_unicast+0x449/0x710 [ 4284.115816][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.115816][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.115816][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.115816][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.115816][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.115816][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.115816][ T10] [ 4284.117781][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4284.117781][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4284.117781][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4284.117781][ T10] ipv6_find_idev+0x102/0x170 [ 4284.117781][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4284.117781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4284.117781][ T10] netlink_rcv_skb+0x130/0x360 [ 4284.117781][ T10] netlink_unicast+0x449/0x710 [ 4284.117781][ T10] netlink_sendmsg+0x723/0xbe0 [ 4284.117781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4284.117781][ T10] ___sys_sendmsg+0xee/0x170 [ 4284.117781][ T10] __sys_sendmsg+0xcd/0x170 [ 4284.117781][ T10] do_syscall_64+0xc6/0x1e0 [ 4284.117781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4284.117781][ T10] [ 4294.355757][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4294.356232][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4294.356232][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.356232][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.356232][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.356232][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.356232][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.356232][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.356232][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.356232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.356232][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.356232][ T10] netlink_unicast+0x449/0x710 [ 4294.356232][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.356232][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.356232][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.356232][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.356232][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.356232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.356232][ T10] [ 4294.358511][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4294.358511][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.358511][ T10] ipv6_find_idev+0x102/0x170 [ 4294.358511][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.358511][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.358511][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.358511][ T10] netlink_unicast+0x449/0x710 [ 4294.358511][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.358511][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.358511][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.358511][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.358511][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.358511][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.358511][ T10] [ 4294.360281][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4294.360281][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.360281][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.360281][ T10] ipv6_find_idev+0x102/0x170 [ 4294.360281][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.360281][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.360281][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.360281][ T10] netlink_unicast+0x449/0x710 [ 4294.360281][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.360281][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.360281][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.360281][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.360281][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.360281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.360281][ T10] [ 4294.362214][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4294.362522][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4294.362522][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.362522][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.362522][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.362522][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.362522][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.362522][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.362522][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.362522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.362522][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.362522][ T10] netlink_unicast+0x449/0x710 [ 4294.362522][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.362522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.362522][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.362522][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.362522][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.362522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.362522][ T10] [ 4294.364781][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4294.364781][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.364781][ T10] ipv6_find_idev+0x102/0x170 [ 4294.364781][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.364781][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.364781][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.364781][ T10] netlink_unicast+0x449/0x710 [ 4294.364781][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.364781][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.364781][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.364781][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.364781][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.364781][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.364781][ T10] [ 4294.366539][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4294.366539][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.366539][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.366539][ T10] ipv6_find_idev+0x102/0x170 [ 4294.366539][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.366539][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.366539][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.366539][ T10] netlink_unicast+0x449/0x710 [ 4294.366539][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.366539][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.366539][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.366539][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.366539][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.366539][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.366539][ T10] [ 4294.368440][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4294.368745][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4294.368745][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.368745][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.368745][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.368745][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.368745][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.368745][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.368745][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.368745][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.368745][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.368745][ T10] netlink_unicast+0x449/0x710 [ 4294.368745][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.368745][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.368745][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.368745][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.368745][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.368745][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.368745][ T10] [ 4294.370960][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4294.370960][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.370960][ T10] ipv6_find_idev+0x102/0x170 [ 4294.370960][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.370960][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.370960][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.370960][ T10] netlink_unicast+0x449/0x710 [ 4294.370960][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.370960][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.370960][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.370960][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.370960][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.370960][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.370960][ T10] [ 4294.372667][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4294.372667][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.372667][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.372667][ T10] ipv6_find_idev+0x102/0x170 [ 4294.372667][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.372667][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.372667][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.372667][ T10] netlink_unicast+0x449/0x710 [ 4294.372667][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.372667][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.372667][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.372667][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.372667][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.372667][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.372667][ T10] [ 4294.374589][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4294.375337][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4294.375337][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.375337][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.375337][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.375337][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.375337][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.375337][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.375337][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.375337][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.375337][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.375337][ T10] netlink_unicast+0x449/0x710 [ 4294.375337][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.375337][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.375337][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.375337][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.375337][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.375337][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.375337][ T10] [ 4294.377604][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4294.377604][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.377604][ T10] ipv6_find_idev+0x102/0x170 [ 4294.377604][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.377604][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.377604][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.377604][ T10] netlink_unicast+0x449/0x710 [ 4294.377604][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.377604][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.377604][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.377604][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.377604][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.377604][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.377604][ T10] [ 4294.379351][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4294.379351][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.379351][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.379351][ T10] ipv6_find_idev+0x102/0x170 [ 4294.379351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.379351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.379351][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.379351][ T10] netlink_unicast+0x449/0x710 [ 4294.379351][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.379351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.379351][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.379351][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.379351][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.379351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.379351][ T10] [ 4294.381308][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4294.381646][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4294.381646][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.381646][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.381646][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.381646][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.381646][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.381646][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.381646][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.381646][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.381646][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.381646][ T10] netlink_unicast+0x449/0x710 [ 4294.381646][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.381646][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.381646][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.381646][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.381646][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.381646][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.381646][ T10] [ 4294.383884][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4294.383884][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.383884][ T10] ipv6_find_idev+0x102/0x170 [ 4294.383884][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.383884][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.383884][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.383884][ T10] netlink_unicast+0x449/0x710 [ 4294.383884][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.383884][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.383884][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.383884][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.383884][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.383884][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.383884][ T10] [ 4294.385631][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4294.385631][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.385631][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.385631][ T10] ipv6_find_idev+0x102/0x170 [ 4294.385631][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.385631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.385631][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.385631][ T10] netlink_unicast+0x449/0x710 [ 4294.385631][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.385631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.385631][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.385631][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.385631][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.385631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.385631][ T10] [ 4294.387563][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4294.387907][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4294.387907][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.387907][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.387907][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.387907][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.387907][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.387907][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.387907][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.387907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.387907][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.387907][ T10] netlink_unicast+0x449/0x710 [ 4294.387907][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.387907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.387907][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.387907][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.387907][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.387907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.387907][ T10] [ 4294.390131][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4294.390131][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.390131][ T10] ipv6_find_idev+0x102/0x170 [ 4294.390131][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.390131][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.390131][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.390131][ T10] netlink_unicast+0x449/0x710 [ 4294.390131][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.390131][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.390131][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.390131][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.390131][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.390131][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.390131][ T10] [ 4294.392026][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4294.392026][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.392026][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.392026][ T10] ipv6_find_idev+0x102/0x170 [ 4294.392026][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.392026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.392026][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.392026][ T10] netlink_unicast+0x449/0x710 [ 4294.392026][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.392026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.392026][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.392026][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.392026][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.392026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.392026][ T10] [ 4294.394218][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4294.394556][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4294.394556][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.394556][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.394556][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.394556][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.394556][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.394556][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.394556][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.394556][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.394556][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.394556][ T10] netlink_unicast+0x449/0x710 [ 4294.394556][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.394556][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.394556][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.394556][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.394556][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.394556][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.394556][ T10] [ 4294.397004][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4294.397004][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.397004][ T10] ipv6_find_idev+0x102/0x170 [ 4294.397004][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.397004][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.397004][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.397004][ T10] netlink_unicast+0x449/0x710 [ 4294.397004][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.397004][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.397004][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.397004][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.397004][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.397004][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.397004][ T10] [ 4294.398920][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4294.398920][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.398920][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.398920][ T10] ipv6_find_idev+0x102/0x170 [ 4294.398920][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.398920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.398920][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.398920][ T10] netlink_unicast+0x449/0x710 [ 4294.398920][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.398920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.398920][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.398920][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.398920][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.398920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.398920][ T10] [ 4294.401034][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4294.401378][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4294.401378][ T10] netdev_get_by_index+0x5e/0x80 [ 4294.401378][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4294.401378][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4294.401378][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4294.401378][ T10] ipv6_add_addr+0x411/0x2000 [ 4294.401378][ T10] inet6_addr_add+0x30e/0xa40 [ 4294.401378][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4294.401378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.401378][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.401378][ T10] netlink_unicast+0x449/0x710 [ 4294.401378][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.401378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.401378][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.401378][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.401378][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.401378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.401378][ T10] [ 4294.403829][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4294.403829][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4294.403829][ T10] ipv6_find_idev+0x102/0x170 [ 4294.403829][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.403829][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.403829][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.403829][ T10] netlink_unicast+0x449/0x710 [ 4294.403829][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.403829][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.403829][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.403829][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.403829][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.403829][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.403829][ T10] [ 4294.405848][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4294.405848][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4294.405848][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4294.405848][ T10] ipv6_find_idev+0x102/0x170 [ 4294.405848][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4294.405848][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4294.405848][ T10] netlink_rcv_skb+0x130/0x360 [ 4294.405848][ T10] netlink_unicast+0x449/0x710 [ 4294.405848][ T10] netlink_sendmsg+0x723/0xbe0 [ 4294.405848][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4294.405848][ T10] ___sys_sendmsg+0xee/0x170 [ 4294.405848][ T10] __sys_sendmsg+0xcd/0x170 [ 4294.405848][ T10] do_syscall_64+0xc6/0x1e0 [ 4294.405848][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4294.405848][ T10] [ 4302.115713][ T42] INFO: task modprobe:14797 blocked for more than 1228 seconds. [ 4302.116109][ T42] Not tainted 6.8.0-virtme #1 [ 4302.116239][ T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4302.116465][ T42] task:modprobe state:D stack:25856 pid:14797 tgid:14797 ppid:10034 flags:0x00004002 [ 4302.116767][ T42] Call Trace: [ 4302.116872][ T42] [ 4302.116949][ T42] __schedule+0x705/0x1ac0 [ 4302.117101][ T42] ? __pfx___schedule+0x10/0x10 [ 4302.117242][ T42] ? schedule+0x1a5/0x210 [ 4302.117348][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4302.117489][ T42] ? mark_lock+0x38/0x3e0 [ 4302.117592][ T42] ? do_raw_spin_lock+0x131/0x270 [ 4302.117750][ T42] ? schedule+0x1a5/0x210 [ 4302.117857][ T42] schedule+0xdf/0x210 [ 4302.117961][ T42] schedule_preempt_disabled+0x15/0x30 [ 4302.118095][ T42] rwsem_down_write_slowpath+0x3af/0xab0 [ 4302.118243][ T42] ? __pfx_rwsem_down_write_slowpath+0x10/0x10 [ 4302.118416][ T42] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4302.118558][ T42] ? lock_acquire+0x1c1/0x220 [ 4302.118703][ T42] ? register_pernet_subsys+0x1a/0x50 [ 4302.118849][ T42] down_write+0x1c9/0x200 [ 4302.118954][ T42] ? __pfx_down_write+0x10/0x10 [ 4302.119092][ T42] ? __lock_release+0x103/0x460 [ 4302.119225][ T42] ? __create_object+0x5e/0xb0 [ 4302.119367][ T42] ? __pfx___lock_release+0x10/0x10 [ 4302.119509][ T42] register_pernet_subsys+0x1a/0x50 [ 4302.119658][ T42] tcf_register_action+0xa3/0x600 [ 4302.119796][ T42] ? __pfx_pedit_init_module+0x10/0x10 [act_pedit] [ 4302.119976][ T42] do_one_initcall+0xc8/0x3f0 [ 4302.120116][ T42] ? __pfx_do_one_initcall+0x10/0x10 [ 4302.120260][ T42] ? __create_object+0x5e/0xb0 [ 4302.120398][ T42] ? kasan_unpoison+0x27/0x60 [ 4302.120540][ T42] do_init_module+0x233/0x740 [ 4302.120705][ T42] load_module+0x16b5/0x2350 [ 4302.120857][ T42] ? __pfx_load_module+0x10/0x10 [ 4302.120992][ T42] ? kernel_read_file+0x3d2/0x520 [ 4302.121133][ T42] ? kernel_read_file+0x300/0x520 [ 4302.121273][ T42] ? __pfx_kernel_read_file+0x10/0x10 [ 4302.121417][ T42] ? init_module_from_file+0xd2/0x130 [ 4302.121551][ T42] init_module_from_file+0xd2/0x130 [ 4302.121699][ T42] ? __pfx_init_module_from_file+0x10/0x10 [ 4302.121869][ T42] ? __lock_release+0x103/0x460 [ 4302.122005][ T42] ? idempotent_init_module+0x32a/0x620 [ 4302.122151][ T42] ? idempotent_init_module+0x32a/0x620 [ 4302.122285][ T42] ? do_raw_spin_unlock+0x58/0x220 [ 4302.122425][ T42] idempotent_init_module+0x342/0x620 [ 4302.122568][ T42] ? __pfx_idempotent_init_module+0x10/0x10 [ 4302.122770][ T42] __x64_sys_finit_module+0xbe/0x130 [ 4302.122909][ T42] do_syscall_64+0xc6/0x1e0 [ 4302.123052][ T42] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4302.123221][ T42] RIP: 0033:0x7f188f3c6e5d [ 4302.123360][ T42] RSP: 002b:00007ffca11961d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 4302.123565][ T42] RAX: ffffffffffffffda RBX: 000055c8f1e87c00 RCX: 00007f188f3c6e5d [ 4302.123780][ T42] RDX: 0000000000000000 RSI: 000055c8e4ea3a2a RDI: 0000000000000000 [ 4302.123982][ T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffca1196310 [ 4302.124179][ T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8e4ea3a2a [ 4302.124382][ T42] R13: 000055c8f1e87b10 R14: 000055c8f1e87f40 R15: 000055c8f1e87c72 [ 4302.124595][ T42] [ 4302.124716][ T42] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings [ 4302.124943][ T42] [ 4302.124943][ T42] Showing all locks held in the system: [ 4302.125131][ T42] 3 locks held by kworker/u16:0/10: [ 4302.125274][ T42] #0: ffff8880018fa948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 4302.125574][ T42] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 4302.125826][ T42] #2: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xa20 [ 4302.126076][ T42] 1 lock held by khungtaskd/42: [ 4302.126207][ T42] #0: ffffffff9dd69160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350 [ 4302.126456][ T42] 2 locks held by kworker/u20:2/10034: [ 4302.126589][ T42] #0: ffff888001159d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0 [ 4302.126867][ T42] #1: ffffc9000afdfda0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0 [ 4302.127172][ T42] 1 lock held by modprobe/14797: [ 4302.127321][ T42] #0: ffffffff9e56bf10 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50 [ 4302.127594][ T42] [ 4302.127674][ T42] ============================================= [ 4302.127674][ T42] [ 4304.547781][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4304.548252][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4304.548252][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.548252][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.548252][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.548252][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.548252][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.548252][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.548252][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.548252][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.548252][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.548252][ T10] netlink_unicast+0x449/0x710 [ 4304.548252][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.548252][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.548252][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.548252][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.548252][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.548252][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.548252][ T10] [ 4304.550459][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4304.550459][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.550459][ T10] ipv6_find_idev+0x102/0x170 [ 4304.550459][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.550459][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.550459][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.550459][ T10] netlink_unicast+0x449/0x710 [ 4304.550459][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.550459][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.550459][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.550459][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.550459][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.550459][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.550459][ T10] [ 4304.552139][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4304.552139][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.552139][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.552139][ T10] ipv6_find_idev+0x102/0x170 [ 4304.552139][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.552139][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.552139][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.552139][ T10] netlink_unicast+0x449/0x710 [ 4304.552139][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.552139][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.552139][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.552139][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.552139][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.552139][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.552139][ T10] [ 4304.553985][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4304.554271][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4304.554271][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.554271][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.554271][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.554271][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.554271][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.554271][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.554271][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.554271][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.554271][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.554271][ T10] netlink_unicast+0x449/0x710 [ 4304.554271][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.554271][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.554271][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.554271][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.554271][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.554271][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.554271][ T10] [ 4304.556447][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4304.556447][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.556447][ T10] ipv6_find_idev+0x102/0x170 [ 4304.556447][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.556447][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.556447][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.556447][ T10] netlink_unicast+0x449/0x710 [ 4304.556447][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.556447][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.556447][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.556447][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.556447][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.556447][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.556447][ T10] [ 4304.558125][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4304.558125][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.558125][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.558125][ T10] ipv6_find_idev+0x102/0x170 [ 4304.558125][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.558125][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.558125][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.558125][ T10] netlink_unicast+0x449/0x710 [ 4304.558125][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.558125][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.558125][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.558125][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.558125][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.558125][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.558125][ T10] [ 4304.559970][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4304.560269][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4304.560269][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.560269][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.560269][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.560269][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.560269][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.560269][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.560269][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.560269][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.560269][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.560269][ T10] netlink_unicast+0x449/0x710 [ 4304.560269][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.560269][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.560269][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.560269][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.560269][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.560269][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.560269][ T10] [ 4304.562488][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4304.562488][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.562488][ T10] ipv6_find_idev+0x102/0x170 [ 4304.562488][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.562488][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.562488][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.562488][ T10] netlink_unicast+0x449/0x710 [ 4304.562488][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.562488][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.562488][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.562488][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.562488][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.562488][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.562488][ T10] [ 4304.564200][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4304.564200][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.564200][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.564200][ T10] ipv6_find_idev+0x102/0x170 [ 4304.564200][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.564200][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.564200][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.564200][ T10] netlink_unicast+0x449/0x710 [ 4304.564200][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.564200][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.564200][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.564200][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.564200][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.564200][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.564200][ T10] [ 4304.566036][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4304.566316][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4304.566316][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.566316][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.566316][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.566316][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.566316][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.566316][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.566316][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.566316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.566316][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.566316][ T10] netlink_unicast+0x449/0x710 [ 4304.566316][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.566316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.566316][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.566316][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.566316][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.566316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.566316][ T10] [ 4304.568500][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4304.568500][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.568500][ T10] ipv6_find_idev+0x102/0x170 [ 4304.568500][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.568500][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.568500][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.568500][ T10] netlink_unicast+0x449/0x710 [ 4304.568500][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.568500][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.568500][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.568500][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.568500][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.568500][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.568500][ T10] [ 4304.570186][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4304.570186][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.570186][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.570186][ T10] ipv6_find_idev+0x102/0x170 [ 4304.570186][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.570186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.570186][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.570186][ T10] netlink_unicast+0x449/0x710 [ 4304.570186][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.570186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.570186][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.570186][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.570186][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.570186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.570186][ T10] [ 4304.572408][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4304.573038][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4304.573038][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.573038][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.573038][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.573038][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.573038][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.573038][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.573038][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.573038][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.573038][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.573038][ T10] netlink_unicast+0x449/0x710 [ 4304.573038][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.573038][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.573038][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.573038][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.573038][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.573038][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.573038][ T10] [ 4304.575292][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4304.575292][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.575292][ T10] ipv6_find_idev+0x102/0x170 [ 4304.575292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.575292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.575292][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.575292][ T10] netlink_unicast+0x449/0x710 [ 4304.575292][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.575292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.575292][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.575292][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.575292][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.575292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.575292][ T10] [ 4304.577492][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4304.577492][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.577492][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.577492][ T10] ipv6_find_idev+0x102/0x170 [ 4304.577492][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.577492][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.577492][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.577492][ T10] netlink_unicast+0x449/0x710 [ 4304.577492][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.577492][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.577492][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.577492][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.577492][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.577492][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.577492][ T10] [ 4304.579333][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4304.579626][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4304.579626][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.579626][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.579626][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.579626][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.579626][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.579626][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.579626][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.579626][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.579626][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.579626][ T10] netlink_unicast+0x449/0x710 [ 4304.579626][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.579626][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.579626][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.579626][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.579626][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.579626][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.579626][ T10] [ 4304.581849][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4304.581849][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.581849][ T10] ipv6_find_idev+0x102/0x170 [ 4304.581849][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.581849][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.581849][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.581849][ T10] netlink_unicast+0x449/0x710 [ 4304.581849][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.581849][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.581849][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.581849][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.581849][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.581849][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.581849][ T10] [ 4304.583674][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4304.583674][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.583674][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.583674][ T10] ipv6_find_idev+0x102/0x170 [ 4304.583674][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.583674][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.583674][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.583674][ T10] netlink_unicast+0x449/0x710 [ 4304.583674][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.583674][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.583674][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.583674][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.583674][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.583674][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.583674][ T10] [ 4304.585778][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4304.586068][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4304.586068][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.586068][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.586068][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.586068][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.586068][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.586068][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.586068][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.586068][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.586068][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.586068][ T10] netlink_unicast+0x449/0x710 [ 4304.586068][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.586068][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.586068][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.586068][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.586068][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.586068][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.586068][ T10] [ 4304.588524][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4304.588524][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.588524][ T10] ipv6_find_idev+0x102/0x170 [ 4304.588524][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.588524][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.588524][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.588524][ T10] netlink_unicast+0x449/0x710 [ 4304.588524][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.588524][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.588524][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.588524][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.588524][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.588524][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.588524][ T10] [ 4304.590412][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4304.590412][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.590412][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.590412][ T10] ipv6_find_idev+0x102/0x170 [ 4304.590412][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.590412][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.590412][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.590412][ T10] netlink_unicast+0x449/0x710 [ 4304.590412][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.590412][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.590412][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.590412][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.590412][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.590412][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.590412][ T10] [ 4304.592564][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4304.592905][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4304.592905][ T10] netdev_get_by_index+0x5e/0x80 [ 4304.592905][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4304.592905][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4304.592905][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4304.592905][ T10] ipv6_add_addr+0x411/0x2000 [ 4304.592905][ T10] inet6_addr_add+0x30e/0xa40 [ 4304.592905][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4304.592905][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.592905][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.592905][ T10] netlink_unicast+0x449/0x710 [ 4304.592905][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.592905][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.592905][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.592905][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.592905][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.592905][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.592905][ T10] [ 4304.595292][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4304.595292][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4304.595292][ T10] ipv6_find_idev+0x102/0x170 [ 4304.595292][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.595292][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.595292][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.595292][ T10] netlink_unicast+0x449/0x710 [ 4304.595292][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.595292][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.595292][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.595292][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.595292][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.595292][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.595292][ T10] [ 4304.597151][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4304.597151][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4304.597151][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4304.597151][ T10] ipv6_find_idev+0x102/0x170 [ 4304.597151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4304.597151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4304.597151][ T10] netlink_rcv_skb+0x130/0x360 [ 4304.597151][ T10] netlink_unicast+0x449/0x710 [ 4304.597151][ T10] netlink_sendmsg+0x723/0xbe0 [ 4304.597151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4304.597151][ T10] ___sys_sendmsg+0xee/0x170 [ 4304.597151][ T10] __sys_sendmsg+0xcd/0x170 [ 4304.597151][ T10] do_syscall_64+0xc6/0x1e0 [ 4304.597151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4304.597151][ T10] [ 4314.747778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4314.748240][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4314.748240][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.748240][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.748240][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.748240][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.748240][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.748240][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.748240][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.748240][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.748240][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.748240][ T10] netlink_unicast+0x449/0x710 [ 4314.748240][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.748240][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.748240][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.748240][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.748240][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.748240][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.748240][ T10] [ 4314.750542][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4314.750542][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.750542][ T10] ipv6_find_idev+0x102/0x170 [ 4314.750542][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.750542][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.750542][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.750542][ T10] netlink_unicast+0x449/0x710 [ 4314.750542][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.750542][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.750542][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.750542][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.750542][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.750542][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.750542][ T10] [ 4314.752299][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4314.752299][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.752299][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.752299][ T10] ipv6_find_idev+0x102/0x170 [ 4314.752299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.752299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.752299][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.752299][ T10] netlink_unicast+0x449/0x710 [ 4314.752299][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.752299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.752299][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.752299][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.752299][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.752299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.752299][ T10] [ 4314.754251][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4314.754557][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4314.754557][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.754557][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.754557][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.754557][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.754557][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.754557][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.754557][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.754557][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.754557][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.754557][ T10] netlink_unicast+0x449/0x710 [ 4314.754557][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.754557][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.754557][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.754557][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.754557][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.754557][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.754557][ T10] [ 4314.756841][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4314.756841][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.756841][ T10] ipv6_find_idev+0x102/0x170 [ 4314.756841][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.756841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.756841][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.756841][ T10] netlink_unicast+0x449/0x710 [ 4314.756841][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.756841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.756841][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.756841][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.756841][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.756841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.756841][ T10] [ 4314.758587][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4314.758587][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.758587][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.758587][ T10] ipv6_find_idev+0x102/0x170 [ 4314.758587][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.758587][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.758587][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.758587][ T10] netlink_unicast+0x449/0x710 [ 4314.758587][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.758587][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.758587][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.758587][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.758587][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.758587][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.758587][ T10] [ 4314.760505][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4314.760821][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4314.760821][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.760821][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.760821][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.760821][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.760821][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.760821][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.760821][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.760821][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.760821][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.760821][ T10] netlink_unicast+0x449/0x710 [ 4314.760821][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.760821][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.760821][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.760821][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.760821][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.760821][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.760821][ T10] [ 4314.763100][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4314.763100][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.763100][ T10] ipv6_find_idev+0x102/0x170 [ 4314.763100][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.763100][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.763100][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.763100][ T10] netlink_unicast+0x449/0x710 [ 4314.763100][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.763100][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.763100][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.763100][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.763100][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.763100][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.763100][ T10] [ 4314.764815][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4314.764815][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.764815][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.764815][ T10] ipv6_find_idev+0x102/0x170 [ 4314.764815][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.764815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.764815][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.764815][ T10] netlink_unicast+0x449/0x710 [ 4314.764815][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.764815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.764815][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.764815][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.764815][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.764815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.764815][ T10] [ 4314.766785][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4314.767077][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4314.767077][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.767077][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.767077][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.767077][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.767077][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.767077][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.767077][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.767077][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.767077][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.767077][ T10] netlink_unicast+0x449/0x710 [ 4314.767077][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.767077][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.767077][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.767077][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.767077][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.767077][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.767077][ T10] [ 4314.769308][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4314.769308][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.769308][ T10] ipv6_find_idev+0x102/0x170 [ 4314.769308][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.769308][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.769308][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.769308][ T10] netlink_unicast+0x449/0x710 [ 4314.769308][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.769308][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.769308][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.769308][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.769308][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.769308][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.769308][ T10] [ 4314.771024][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4314.771024][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.771024][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.771024][ T10] ipv6_find_idev+0x102/0x170 [ 4314.771024][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.771024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.771024][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.771024][ T10] netlink_unicast+0x449/0x710 [ 4314.771024][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.771024][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.771024][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.771024][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.771024][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.771024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.771024][ T10] [ 4314.773280][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4314.773914][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4314.773914][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.773914][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.773914][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.773914][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.773914][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.773914][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.773914][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.773914][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.773914][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.773914][ T10] netlink_unicast+0x449/0x710 [ 4314.773914][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.773914][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.773914][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.773914][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.773914][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.773914][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.773914][ T10] [ 4314.776154][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4314.776154][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.776154][ T10] ipv6_find_idev+0x102/0x170 [ 4314.776154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.776154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.776154][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.776154][ T10] netlink_unicast+0x449/0x710 [ 4314.776154][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.776154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.776154][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.776154][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.776154][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.776154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.776154][ T10] [ 4314.777880][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4314.777880][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.777880][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.777880][ T10] ipv6_find_idev+0x102/0x170 [ 4314.777880][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.777880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.777880][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.777880][ T10] netlink_unicast+0x449/0x710 [ 4314.777880][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.777880][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.777880][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.777880][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.777880][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.777880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.777880][ T10] [ 4314.779770][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4314.780065][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4314.780065][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.780065][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.780065][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.780065][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.780065][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.780065][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.780065][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.780065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.780065][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.780065][ T10] netlink_unicast+0x449/0x710 [ 4314.780065][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.780065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.780065][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.780065][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.780065][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.780065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.780065][ T10] [ 4314.782307][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4314.782307][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.782307][ T10] ipv6_find_idev+0x102/0x170 [ 4314.782307][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.782307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.782307][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.782307][ T10] netlink_unicast+0x449/0x710 [ 4314.782307][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.782307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.782307][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.782307][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.782307][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.782307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.782307][ T10] [ 4314.784096][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4314.784096][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.784096][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.784096][ T10] ipv6_find_idev+0x102/0x170 [ 4314.784096][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.784096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.784096][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.784096][ T10] netlink_unicast+0x449/0x710 [ 4314.784096][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.784096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.784096][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.784096][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.784096][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.784096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.784096][ T10] [ 4314.786229][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4314.786572][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4314.786572][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.786572][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.786572][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.786572][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.786572][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.786572][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.786572][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.786572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.786572][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.786572][ T10] netlink_unicast+0x449/0x710 [ 4314.786572][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.786572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.786572][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.786572][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.786572][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.786572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.786572][ T10] [ 4314.788992][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4314.788992][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.788992][ T10] ipv6_find_idev+0x102/0x170 [ 4314.788992][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.788992][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.788992][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.788992][ T10] netlink_unicast+0x449/0x710 [ 4314.788992][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.788992][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.788992][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.788992][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.788992][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.788992][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.788992][ T10] [ 4314.790898][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4314.790898][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.790898][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.790898][ T10] ipv6_find_idev+0x102/0x170 [ 4314.790898][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.790898][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.790898][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.790898][ T10] netlink_unicast+0x449/0x710 [ 4314.790898][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.790898][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.790898][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.790898][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.790898][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.790898][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.790898][ T10] [ 4314.793128][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4314.793473][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4314.793473][ T10] netdev_get_by_index+0x5e/0x80 [ 4314.793473][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4314.793473][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4314.793473][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4314.793473][ T10] ipv6_add_addr+0x411/0x2000 [ 4314.793473][ T10] inet6_addr_add+0x30e/0xa40 [ 4314.793473][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4314.793473][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.793473][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.793473][ T10] netlink_unicast+0x449/0x710 [ 4314.793473][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.793473][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.793473][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.793473][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.793473][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.793473][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.793473][ T10] [ 4314.795900][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4314.795900][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4314.795900][ T10] ipv6_find_idev+0x102/0x170 [ 4314.795900][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.795900][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.795900][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.795900][ T10] netlink_unicast+0x449/0x710 [ 4314.795900][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.795900][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.795900][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.795900][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.795900][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.795900][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.795900][ T10] [ 4314.797791][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4314.797791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4314.797791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4314.797791][ T10] ipv6_find_idev+0x102/0x170 [ 4314.797791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4314.797791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4314.797791][ T10] netlink_rcv_skb+0x130/0x360 [ 4314.797791][ T10] netlink_unicast+0x449/0x710 [ 4314.797791][ T10] netlink_sendmsg+0x723/0xbe0 [ 4314.797791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4314.797791][ T10] ___sys_sendmsg+0xee/0x170 [ 4314.797791][ T10] __sys_sendmsg+0xcd/0x170 [ 4314.797791][ T10] do_syscall_64+0xc6/0x1e0 [ 4314.797791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4314.797791][ T10] [ 4324.859779][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4324.860279][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4324.860279][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.860279][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.860279][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.860279][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.860279][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.860279][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.860279][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.860279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.860279][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.860279][ T10] netlink_unicast+0x449/0x710 [ 4324.860279][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.860279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.860279][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.860279][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.860279][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.860279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.860279][ T10] [ 4324.862490][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4324.862490][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.862490][ T10] ipv6_find_idev+0x102/0x170 [ 4324.862490][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.862490][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.862490][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.862490][ T10] netlink_unicast+0x449/0x710 [ 4324.862490][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.862490][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.862490][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.862490][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.862490][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.862490][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.862490][ T10] [ 4324.864190][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4324.864190][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.864190][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.864190][ T10] ipv6_find_idev+0x102/0x170 [ 4324.864190][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.864190][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.864190][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.864190][ T10] netlink_unicast+0x449/0x710 [ 4324.864190][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.864190][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.864190][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.864190][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.864190][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.864190][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.864190][ T10] [ 4324.866051][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4324.866334][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4324.866334][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.866334][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.866334][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.866334][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.866334][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.866334][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.866334][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.866334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.866334][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.866334][ T10] netlink_unicast+0x449/0x710 [ 4324.866334][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.866334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.866334][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.866334][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.866334][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.866334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.866334][ T10] [ 4324.868530][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4324.868530][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.868530][ T10] ipv6_find_idev+0x102/0x170 [ 4324.868530][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.868530][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.868530][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.868530][ T10] netlink_unicast+0x449/0x710 [ 4324.868530][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.868530][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.868530][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.868530][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.868530][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.868530][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.868530][ T10] [ 4324.870220][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4324.870220][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.870220][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.870220][ T10] ipv6_find_idev+0x102/0x170 [ 4324.870220][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.870220][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.870220][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.870220][ T10] netlink_unicast+0x449/0x710 [ 4324.870220][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.870220][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.870220][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.870220][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.870220][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.870220][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.870220][ T10] [ 4324.872042][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4324.872331][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4324.872331][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.872331][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.872331][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.872331][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.872331][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.872331][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.872331][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.872331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.872331][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.872331][ T10] netlink_unicast+0x449/0x710 [ 4324.872331][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.872331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.872331][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.872331][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.872331][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.872331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.872331][ T10] [ 4324.874504][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4324.874504][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.874504][ T10] ipv6_find_idev+0x102/0x170 [ 4324.874504][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.874504][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.874504][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.874504][ T10] netlink_unicast+0x449/0x710 [ 4324.874504][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.874504][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.874504][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.874504][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.874504][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.874504][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.874504][ T10] [ 4324.876174][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4324.876174][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.876174][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.876174][ T10] ipv6_find_idev+0x102/0x170 [ 4324.876174][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.876174][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.876174][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.876174][ T10] netlink_unicast+0x449/0x710 [ 4324.876174][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.876174][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.876174][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.876174][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.876174][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.876174][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.876174][ T10] [ 4324.877999][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4324.878288][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4324.878288][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.878288][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.878288][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.878288][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.878288][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.878288][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.878288][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.878288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.878288][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.878288][ T10] netlink_unicast+0x449/0x710 [ 4324.878288][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.878288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.878288][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.878288][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.878288][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.878288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.878288][ T10] [ 4324.880484][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4324.880484][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.880484][ T10] ipv6_find_idev+0x102/0x170 [ 4324.880484][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.880484][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.880484][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.880484][ T10] netlink_unicast+0x449/0x710 [ 4324.880484][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.880484][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.880484][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.880484][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.880484][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.880484][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.880484][ T10] [ 4324.882163][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4324.882163][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.882163][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.882163][ T10] ipv6_find_idev+0x102/0x170 [ 4324.882163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.882163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.882163][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.882163][ T10] netlink_unicast+0x449/0x710 [ 4324.882163][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.882163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.882163][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.882163][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.882163][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.882163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.882163][ T10] [ 4324.884012][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4324.884304][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4324.884304][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.884304][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.884304][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.884304][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.884304][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.884304][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.884304][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.884304][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.884304][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.884304][ T10] netlink_unicast+0x449/0x710 [ 4324.884304][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.884304][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.884304][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.884304][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.884304][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.884304][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.884304][ T10] [ 4324.886501][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4324.886501][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.886501][ T10] ipv6_find_idev+0x102/0x170 [ 4324.886501][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.886501][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.886501][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.886501][ T10] netlink_unicast+0x449/0x710 [ 4324.886501][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.886501][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.886501][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.886501][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.886501][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.886501][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.886501][ T10] [ 4324.888330][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4324.888330][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.888330][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.888330][ T10] ipv6_find_idev+0x102/0x170 [ 4324.888330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.888330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.888330][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.888330][ T10] netlink_unicast+0x449/0x710 [ 4324.888330][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.888330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.888330][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.888330][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.888330][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.888330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.888330][ T10] [ 4324.890467][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4324.890799][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4324.890799][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.890799][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.890799][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.890799][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.890799][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.890799][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.890799][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.890799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.890799][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.890799][ T10] netlink_unicast+0x449/0x710 [ 4324.890799][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.890799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.890799][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.890799][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.890799][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.890799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.890799][ T10] [ 4324.893151][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4324.893151][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.893151][ T10] ipv6_find_idev+0x102/0x170 [ 4324.893151][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.893151][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.893151][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.893151][ T10] netlink_unicast+0x449/0x710 [ 4324.893151][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.893151][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.893151][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.893151][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.893151][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.893151][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.893151][ T10] [ 4324.895037][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4324.895037][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.895037][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.895037][ T10] ipv6_find_idev+0x102/0x170 [ 4324.895037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.895037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.895037][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.895037][ T10] netlink_unicast+0x449/0x710 [ 4324.895037][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.895037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.895037][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.895037][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.895037][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.895037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.895037][ T10] [ 4324.897085][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4324.897365][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4324.897365][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.897365][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.897365][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.897365][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.897365][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.897365][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.897365][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.897365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.897365][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.897365][ T10] netlink_unicast+0x449/0x710 [ 4324.897365][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.897365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.897365][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.897365][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.897365][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.897365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.897365][ T10] [ 4324.899773][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4324.899773][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.899773][ T10] ipv6_find_idev+0x102/0x170 [ 4324.899773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.899773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.899773][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.899773][ T10] netlink_unicast+0x449/0x710 [ 4324.899773][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.899773][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.899773][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.899773][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.899773][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.899773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.899773][ T10] [ 4324.901700][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4324.901700][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.901700][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.901700][ T10] ipv6_find_idev+0x102/0x170 [ 4324.901700][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.901700][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.901700][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.901700][ T10] netlink_unicast+0x449/0x710 [ 4324.901700][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.901700][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.901700][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.901700][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.901700][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.901700][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.901700][ T10] [ 4324.903743][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4324.904031][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4324.904031][ T10] netdev_get_by_index+0x5e/0x80 [ 4324.904031][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4324.904031][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4324.904031][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4324.904031][ T10] ipv6_add_addr+0x411/0x2000 [ 4324.904031][ T10] inet6_addr_add+0x30e/0xa40 [ 4324.904031][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4324.904031][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.904031][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.904031][ T10] netlink_unicast+0x449/0x710 [ 4324.904031][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.904031][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.904031][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.904031][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.904031][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.904031][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.904031][ T10] [ 4324.906437][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4324.906437][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4324.906437][ T10] ipv6_find_idev+0x102/0x170 [ 4324.906437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.906437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.906437][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.906437][ T10] netlink_unicast+0x449/0x710 [ 4324.906437][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.906437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.906437][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.906437][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.906437][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.906437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.906437][ T10] [ 4324.908800][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4324.908800][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4324.908800][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4324.908800][ T10] ipv6_find_idev+0x102/0x170 [ 4324.908800][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4324.908800][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4324.908800][ T10] netlink_rcv_skb+0x130/0x360 [ 4324.908800][ T10] netlink_unicast+0x449/0x710 [ 4324.908800][ T10] netlink_sendmsg+0x723/0xbe0 [ 4324.908800][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4324.908800][ T10] ___sys_sendmsg+0xee/0x170 [ 4324.908800][ T10] __sys_sendmsg+0xcd/0x170 [ 4324.908800][ T10] do_syscall_64+0xc6/0x1e0 [ 4324.908800][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4324.908800][ T10] [ 4335.163750][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4335.164213][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4335.164213][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.164213][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.164213][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.164213][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.164213][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.164213][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.164213][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.164213][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.164213][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.164213][ T10] netlink_unicast+0x449/0x710 [ 4335.164213][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.164213][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.164213][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.164213][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.164213][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.164213][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.164213][ T10] [ 4335.166486][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4335.166486][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.166486][ T10] ipv6_find_idev+0x102/0x170 [ 4335.166486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.166486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.166486][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.166486][ T10] netlink_unicast+0x449/0x710 [ 4335.166486][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.166486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.166486][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.166486][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.166486][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.166486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.166486][ T10] [ 4335.168246][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4335.168246][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.168246][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.168246][ T10] ipv6_find_idev+0x102/0x170 [ 4335.168246][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.168246][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.168246][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.168246][ T10] netlink_unicast+0x449/0x710 [ 4335.168246][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.168246][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.168246][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.168246][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.168246][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.168246][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.168246][ T10] [ 4335.170223][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4335.170526][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4335.170526][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.170526][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.170526][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.170526][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.170526][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.170526][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.170526][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.170526][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.170526][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.170526][ T10] netlink_unicast+0x449/0x710 [ 4335.170526][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.170526][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.170526][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.170526][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.170526][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.170526][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.170526][ T10] [ 4335.172806][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4335.172806][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.172806][ T10] ipv6_find_idev+0x102/0x170 [ 4335.172806][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.172806][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.172806][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.172806][ T10] netlink_unicast+0x449/0x710 [ 4335.172806][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.172806][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.172806][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.172806][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.172806][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.172806][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.172806][ T10] [ 4335.174565][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4335.174565][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.174565][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.174565][ T10] ipv6_find_idev+0x102/0x170 [ 4335.174565][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.174565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.174565][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.174565][ T10] netlink_unicast+0x449/0x710 [ 4335.174565][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.174565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.174565][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.174565][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.174565][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.174565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.174565][ T10] [ 4335.176457][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4335.176769][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4335.176769][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.176769][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.176769][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.176769][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.176769][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.176769][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.176769][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.176769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.176769][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.176769][ T10] netlink_unicast+0x449/0x710 [ 4335.176769][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.176769][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.176769][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.176769][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.176769][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.176769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.176769][ T10] [ 4335.179049][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4335.179049][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.179049][ T10] ipv6_find_idev+0x102/0x170 [ 4335.179049][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.179049][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.179049][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.179049][ T10] netlink_unicast+0x449/0x710 [ 4335.179049][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.179049][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.179049][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.179049][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.179049][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.179049][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.179049][ T10] [ 4335.180785][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4335.180785][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.180785][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.180785][ T10] ipv6_find_idev+0x102/0x170 [ 4335.180785][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.180785][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.180785][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.180785][ T10] netlink_unicast+0x449/0x710 [ 4335.180785][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.180785][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.180785][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.180785][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.180785][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.180785][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.180785][ T10] [ 4335.182703][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4335.183001][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4335.183001][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.183001][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.183001][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.183001][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.183001][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.183001][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.183001][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.183001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.183001][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.183001][ T10] netlink_unicast+0x449/0x710 [ 4335.183001][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.183001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.183001][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.183001][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.183001][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.183001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.183001][ T10] [ 4335.185286][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4335.185286][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.185286][ T10] ipv6_find_idev+0x102/0x170 [ 4335.185286][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.185286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.185286][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.185286][ T10] netlink_unicast+0x449/0x710 [ 4335.185286][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.185286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.185286][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.185286][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.185286][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.185286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.185286][ T10] [ 4335.187026][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4335.187026][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.187026][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.187026][ T10] ipv6_find_idev+0x102/0x170 [ 4335.187026][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.187026][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.187026][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.187026][ T10] netlink_unicast+0x449/0x710 [ 4335.187026][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.187026][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.187026][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.187026][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.187026][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.187026][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.187026][ T10] [ 4335.189336][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4335.189976][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4335.189976][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.189976][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.189976][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.189976][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.189976][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.189976][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.189976][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.189976][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.189976][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.189976][ T10] netlink_unicast+0x449/0x710 [ 4335.189976][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.189976][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.189976][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.189976][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.189976][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.189976][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.189976][ T10] [ 4335.192242][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4335.192242][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.192242][ T10] ipv6_find_idev+0x102/0x170 [ 4335.192242][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.192242][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.192242][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.192242][ T10] netlink_unicast+0x449/0x710 [ 4335.192242][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.192242][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.192242][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.192242][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.192242][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.192242][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.192242][ T10] [ 4335.193982][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4335.193982][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.193982][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.193982][ T10] ipv6_find_idev+0x102/0x170 [ 4335.193982][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.193982][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.193982][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.193982][ T10] netlink_unicast+0x449/0x710 [ 4335.193982][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.193982][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.193982][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.193982][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.193982][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.193982][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.193982][ T10] [ 4335.195868][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4335.196157][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4335.196157][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.196157][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.196157][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.196157][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.196157][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.196157][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.196157][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.196157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.196157][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.196157][ T10] netlink_unicast+0x449/0x710 [ 4335.196157][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.196157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.196157][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.196157][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.196157][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.196157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.196157][ T10] [ 4335.198384][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4335.198384][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.198384][ T10] ipv6_find_idev+0x102/0x170 [ 4335.198384][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.198384][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.198384][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.198384][ T10] netlink_unicast+0x449/0x710 [ 4335.198384][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.198384][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.198384][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.198384][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.198384][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.198384][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.198384][ T10] [ 4335.200115][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4335.200115][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.200115][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.200115][ T10] ipv6_find_idev+0x102/0x170 [ 4335.200115][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.200115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.200115][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.200115][ T10] netlink_unicast+0x449/0x710 [ 4335.200115][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.200115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.200115][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.200115][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.200115][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.200115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.200115][ T10] [ 4335.202323][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4335.202667][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4335.202667][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.202667][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.202667][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.202667][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.202667][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.202667][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.202667][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.202667][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.202667][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.202667][ T10] netlink_unicast+0x449/0x710 [ 4335.202667][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.202667][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.202667][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.202667][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.202667][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.202667][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.202667][ T10] [ 4335.205140][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4335.205140][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.205140][ T10] ipv6_find_idev+0x102/0x170 [ 4335.205140][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.205140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.205140][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.205140][ T10] netlink_unicast+0x449/0x710 [ 4335.205140][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.205140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.205140][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.205140][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.205140][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.205140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.205140][ T10] [ 4335.207066][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4335.207066][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.207066][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.207066][ T10] ipv6_find_idev+0x102/0x170 [ 4335.207066][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.207066][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.207066][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.207066][ T10] netlink_unicast+0x449/0x710 [ 4335.207066][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.207066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.207066][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.207066][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.207066][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.207066][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.207066][ T10] [ 4335.209259][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4335.209606][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4335.209606][ T10] netdev_get_by_index+0x5e/0x80 [ 4335.209606][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4335.209606][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4335.209606][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4335.209606][ T10] ipv6_add_addr+0x411/0x2000 [ 4335.209606][ T10] inet6_addr_add+0x30e/0xa40 [ 4335.209606][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4335.209606][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.209606][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.209606][ T10] netlink_unicast+0x449/0x710 [ 4335.209606][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.209606][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.209606][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.209606][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.209606][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.209606][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.209606][ T10] [ 4335.212572][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4335.212572][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4335.212572][ T10] ipv6_find_idev+0x102/0x170 [ 4335.212572][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.212572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.212572][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.212572][ T10] netlink_unicast+0x449/0x710 [ 4335.212572][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.212572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.212572][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.212572][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.212572][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.212572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.212572][ T10] [ 4335.214654][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4335.214654][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4335.214654][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4335.214654][ T10] ipv6_find_idev+0x102/0x170 [ 4335.214654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4335.214654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4335.214654][ T10] netlink_rcv_skb+0x130/0x360 [ 4335.214654][ T10] netlink_unicast+0x449/0x710 [ 4335.214654][ T10] netlink_sendmsg+0x723/0xbe0 [ 4335.214654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4335.214654][ T10] ___sys_sendmsg+0xee/0x170 [ 4335.214654][ T10] __sys_sendmsg+0xcd/0x170 [ 4335.214654][ T10] do_syscall_64+0xc6/0x1e0 [ 4335.214654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4335.214654][ T10] [ 4345.467686][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4345.468219][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4345.468219][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.468219][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.468219][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.468219][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.468219][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.468219][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.468219][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.468219][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.468219][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.468219][ T10] netlink_unicast+0x449/0x710 [ 4345.468219][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.468219][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.468219][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.468219][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.468219][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.468219][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.468219][ T10] [ 4345.470455][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4345.470455][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.470455][ T10] ipv6_find_idev+0x102/0x170 [ 4345.470455][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.470455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.470455][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.470455][ T10] netlink_unicast+0x449/0x710 [ 4345.470455][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.470455][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.470455][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.470455][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.470455][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.470455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.470455][ T10] [ 4345.472193][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4345.472193][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.472193][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.472193][ T10] ipv6_find_idev+0x102/0x170 [ 4345.472193][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.472193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.472193][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.472193][ T10] netlink_unicast+0x449/0x710 [ 4345.472193][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.472193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.472193][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.472193][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.472193][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.472193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.472193][ T10] [ 4345.474159][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4345.474446][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4345.474446][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.474446][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.474446][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.474446][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.474446][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.474446][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.474446][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.474446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.474446][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.474446][ T10] netlink_unicast+0x449/0x710 [ 4345.474446][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.474446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.474446][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.474446][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.474446][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.474446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.474446][ T10] [ 4345.476649][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4345.476649][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.476649][ T10] ipv6_find_idev+0x102/0x170 [ 4345.476649][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.476649][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.476649][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.476649][ T10] netlink_unicast+0x449/0x710 [ 4345.476649][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.476649][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.476649][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.476649][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.476649][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.476649][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.476649][ T10] [ 4345.478354][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4345.478354][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.478354][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.478354][ T10] ipv6_find_idev+0x102/0x170 [ 4345.478354][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.478354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.478354][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.478354][ T10] netlink_unicast+0x449/0x710 [ 4345.478354][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.478354][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.478354][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.478354][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.478354][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.478354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.478354][ T10] [ 4345.480216][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4345.480499][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4345.480499][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.480499][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.480499][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.480499][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.480499][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.480499][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.480499][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.480499][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.480499][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.480499][ T10] netlink_unicast+0x449/0x710 [ 4345.480499][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.480499][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.480499][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.480499][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.480499][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.480499][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.480499][ T10] [ 4345.482694][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4345.482694][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.482694][ T10] ipv6_find_idev+0x102/0x170 [ 4345.482694][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.482694][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.482694][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.482694][ T10] netlink_unicast+0x449/0x710 [ 4345.482694][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.482694][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.482694][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.482694][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.482694][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.482694][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.482694][ T10] [ 4345.484385][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4345.484385][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.484385][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.484385][ T10] ipv6_find_idev+0x102/0x170 [ 4345.484385][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.484385][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.484385][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.484385][ T10] netlink_unicast+0x449/0x710 [ 4345.484385][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.484385][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.484385][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.484385][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.484385][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.484385][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.484385][ T10] [ 4345.486246][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4345.486528][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4345.486528][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.486528][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.486528][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.486528][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.486528][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.486528][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.486528][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.486528][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.486528][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.486528][ T10] netlink_unicast+0x449/0x710 [ 4345.486528][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.486528][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.486528][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.486528][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.486528][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.486528][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.486528][ T10] [ 4345.488721][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4345.488721][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.488721][ T10] ipv6_find_idev+0x102/0x170 [ 4345.488721][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.488721][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.488721][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.488721][ T10] netlink_unicast+0x449/0x710 [ 4345.488721][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.488721][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.488721][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.488721][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.488721][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.488721][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.488721][ T10] [ 4345.490418][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4345.490418][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.490418][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.490418][ T10] ipv6_find_idev+0x102/0x170 [ 4345.490418][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.490418][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.490418][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.490418][ T10] netlink_unicast+0x449/0x710 [ 4345.490418][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.490418][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.490418][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.490418][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.490418][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.490418][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.490418][ T10] [ 4345.492696][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4345.492988][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4345.492988][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.492988][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.492988][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.492988][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.492988][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.492988][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.492988][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.492988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.492988][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.492988][ T10] netlink_unicast+0x449/0x710 [ 4345.492988][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.492988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.492988][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.492988][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.492988][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.492988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.492988][ T10] [ 4345.495193][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4345.495193][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.495193][ T10] ipv6_find_idev+0x102/0x170 [ 4345.495193][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.495193][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.495193][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.495193][ T10] netlink_unicast+0x449/0x710 [ 4345.495193][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.495193][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.495193][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.495193][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.495193][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.495193][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.495193][ T10] [ 4345.496897][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4345.496897][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.496897][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.496897][ T10] ipv6_find_idev+0x102/0x170 [ 4345.496897][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.496897][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.496897][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.496897][ T10] netlink_unicast+0x449/0x710 [ 4345.496897][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.496897][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.496897][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.496897][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.496897][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.496897][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.496897][ T10] [ 4345.498785][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4345.499071][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4345.499071][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.499071][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.499071][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.499071][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.499071][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.499071][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.499071][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.499071][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.499071][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.499071][ T10] netlink_unicast+0x449/0x710 [ 4345.499071][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.499071][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.499071][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.499071][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.499071][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.499071][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.499071][ T10] [ 4345.501441][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4345.501441][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.501441][ T10] ipv6_find_idev+0x102/0x170 [ 4345.501441][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.501441][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.501441][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.501441][ T10] netlink_unicast+0x449/0x710 [ 4345.501441][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.501441][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.501441][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.501441][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.501441][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.501441][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.501441][ T10] [ 4345.503302][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4345.503302][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.503302][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.503302][ T10] ipv6_find_idev+0x102/0x170 [ 4345.503302][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.503302][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.503302][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.503302][ T10] netlink_unicast+0x449/0x710 [ 4345.503302][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.503302][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.503302][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.503302][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.503302][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.503302][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.503302][ T10] [ 4345.505429][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4345.505775][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4345.505775][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.505775][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.505775][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.505775][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.505775][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.505775][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.505775][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.505775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.505775][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.505775][ T10] netlink_unicast+0x449/0x710 [ 4345.505775][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.505775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.505775][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.505775][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.505775][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.505775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.505775][ T10] [ 4345.508149][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4345.508149][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.508149][ T10] ipv6_find_idev+0x102/0x170 [ 4345.508149][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.508149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.508149][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.508149][ T10] netlink_unicast+0x449/0x710 [ 4345.508149][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.508149][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.508149][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.508149][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.508149][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.508149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.508149][ T10] [ 4345.510042][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4345.510042][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.510042][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.510042][ T10] ipv6_find_idev+0x102/0x170 [ 4345.510042][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.510042][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.510042][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.510042][ T10] netlink_unicast+0x449/0x710 [ 4345.510042][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.510042][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.510042][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.510042][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.510042][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.510042][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.510042][ T10] [ 4345.512113][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4345.512401][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4345.512401][ T10] netdev_get_by_index+0x5e/0x80 [ 4345.512401][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4345.512401][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4345.512401][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4345.512401][ T10] ipv6_add_addr+0x411/0x2000 [ 4345.512401][ T10] inet6_addr_add+0x30e/0xa40 [ 4345.512401][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4345.512401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.512401][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.512401][ T10] netlink_unicast+0x449/0x710 [ 4345.512401][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.512401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.512401][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.512401][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.512401][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.512401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.512401][ T10] [ 4345.514822][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4345.514822][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4345.514822][ T10] ipv6_find_idev+0x102/0x170 [ 4345.514822][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.514822][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.514822][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.514822][ T10] netlink_unicast+0x449/0x710 [ 4345.514822][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.514822][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.514822][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.514822][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.514822][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.514822][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.514822][ T10] [ 4345.516730][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4345.516730][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4345.516730][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4345.516730][ T10] ipv6_find_idev+0x102/0x170 [ 4345.516730][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4345.516730][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4345.516730][ T10] netlink_rcv_skb+0x130/0x360 [ 4345.516730][ T10] netlink_unicast+0x449/0x710 [ 4345.516730][ T10] netlink_sendmsg+0x723/0xbe0 [ 4345.516730][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4345.516730][ T10] ___sys_sendmsg+0xee/0x170 [ 4345.516730][ T10] __sys_sendmsg+0xcd/0x170 [ 4345.516730][ T10] do_syscall_64+0xc6/0x1e0 [ 4345.516730][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4345.516730][ T10] [ 4355.603871][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4355.604401][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4355.604401][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.604401][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.604401][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.604401][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.604401][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.604401][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.604401][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.604401][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.604401][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.604401][ T10] netlink_unicast+0x449/0x710 [ 4355.604401][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.604401][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.604401][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.604401][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.604401][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.604401][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.604401][ T10] [ 4355.606657][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4355.606657][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.606657][ T10] ipv6_find_idev+0x102/0x170 [ 4355.606657][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.606657][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.606657][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.606657][ T10] netlink_unicast+0x449/0x710 [ 4355.606657][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.606657][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.606657][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.606657][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.606657][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.606657][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.606657][ T10] [ 4355.608383][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4355.608383][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.608383][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.608383][ T10] ipv6_find_idev+0x102/0x170 [ 4355.608383][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.608383][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.608383][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.608383][ T10] netlink_unicast+0x449/0x710 [ 4355.608383][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.608383][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.608383][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.608383][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.608383][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.608383][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.608383][ T10] [ 4355.610313][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4355.610605][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4355.610605][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.610605][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.610605][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.610605][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.610605][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.610605][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.610605][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.610605][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.610605][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.610605][ T10] netlink_unicast+0x449/0x710 [ 4355.610605][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.610605][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.610605][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.610605][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.610605][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.610605][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.610605][ T10] [ 4355.612850][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4355.612850][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.612850][ T10] ipv6_find_idev+0x102/0x170 [ 4355.612850][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.612850][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.612850][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.612850][ T10] netlink_unicast+0x449/0x710 [ 4355.612850][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.612850][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.612850][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.612850][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.612850][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.612850][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.612850][ T10] [ 4355.614572][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4355.614572][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.614572][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.614572][ T10] ipv6_find_idev+0x102/0x170 [ 4355.614572][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.614572][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.614572][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.614572][ T10] netlink_unicast+0x449/0x710 [ 4355.614572][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.614572][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.614572][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.614572][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.614572][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.614572][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.614572][ T10] [ 4355.616457][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4355.616765][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4355.616765][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.616765][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.616765][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.616765][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.616765][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.616765][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.616765][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.616765][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.616765][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.616765][ T10] netlink_unicast+0x449/0x710 [ 4355.616765][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.616765][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.616765][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.616765][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.616765][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.616765][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.616765][ T10] [ 4355.619001][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4355.619001][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.619001][ T10] ipv6_find_idev+0x102/0x170 [ 4355.619001][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.619001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.619001][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.619001][ T10] netlink_unicast+0x449/0x710 [ 4355.619001][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.619001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.619001][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.619001][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.619001][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.619001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.619001][ T10] [ 4355.620722][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4355.620722][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.620722][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.620722][ T10] ipv6_find_idev+0x102/0x170 [ 4355.620722][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.620722][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.620722][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.620722][ T10] netlink_unicast+0x449/0x710 [ 4355.620722][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.620722][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.620722][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.620722][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.620722][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.620722][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.620722][ T10] [ 4355.622600][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4355.622958][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4355.622958][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.622958][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.622958][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.622958][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.622958][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.622958][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.622958][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.622958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.622958][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.622958][ T10] netlink_unicast+0x449/0x710 [ 4355.622958][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.622958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.622958][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.622958][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.622958][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.622958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.622958][ T10] [ 4355.625199][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4355.625199][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.625199][ T10] ipv6_find_idev+0x102/0x170 [ 4355.625199][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.625199][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.625199][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.625199][ T10] netlink_unicast+0x449/0x710 [ 4355.625199][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.625199][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.625199][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.625199][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.625199][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.625199][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.625199][ T10] [ 4355.626904][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4355.626904][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.626904][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.626904][ T10] ipv6_find_idev+0x102/0x170 [ 4355.626904][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.626904][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.626904][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.626904][ T10] netlink_unicast+0x449/0x710 [ 4355.626904][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.626904][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.626904][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.626904][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.626904][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.626904][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.626904][ T10] [ 4355.628820][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4355.629150][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4355.629150][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.629150][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.629150][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.629150][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.629150][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.629150][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.629150][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.629150][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.629150][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.629150][ T10] netlink_unicast+0x449/0x710 [ 4355.629150][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.629150][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.629150][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.629150][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.629150][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.629150][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.629150][ T10] [ 4355.631376][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4355.631376][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.631376][ T10] ipv6_find_idev+0x102/0x170 [ 4355.631376][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.631376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.631376][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.631376][ T10] netlink_unicast+0x449/0x710 [ 4355.631376][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.631376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.631376][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.631376][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.631376][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.631376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.631376][ T10] [ 4355.633111][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4355.633111][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.633111][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.633111][ T10] ipv6_find_idev+0x102/0x170 [ 4355.633111][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.633111][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.633111][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.633111][ T10] netlink_unicast+0x449/0x710 [ 4355.633111][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.633111][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.633111][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.633111][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.633111][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.633111][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.633111][ T10] [ 4355.635222][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4355.635554][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4355.635554][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.635554][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.635554][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.635554][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.635554][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.635554][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.635554][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.635554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.635554][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.635554][ T10] netlink_unicast+0x449/0x710 [ 4355.635554][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.635554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.635554][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.635554][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.635554][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.635554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.635554][ T10] [ 4355.638020][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4355.638020][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.638020][ T10] ipv6_find_idev+0x102/0x170 [ 4355.638020][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.638020][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.638020][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.638020][ T10] netlink_unicast+0x449/0x710 [ 4355.638020][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.638020][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.638020][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.638020][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.638020][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.638020][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.638020][ T10] [ 4355.639907][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4355.639907][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.639907][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.639907][ T10] ipv6_find_idev+0x102/0x170 [ 4355.639907][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.639907][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.639907][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.639907][ T10] netlink_unicast+0x449/0x710 [ 4355.639907][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.639907][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.639907][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.639907][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.639907][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.639907][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.639907][ T10] [ 4355.641997][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4355.642329][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4355.642329][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.642329][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.642329][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.642329][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.642329][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.642329][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.642329][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.642329][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.642329][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.642329][ T10] netlink_unicast+0x449/0x710 [ 4355.642329][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.642329][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.642329][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.642329][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.642329][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.642329][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.642329][ T10] [ 4355.644730][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4355.644730][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.644730][ T10] ipv6_find_idev+0x102/0x170 [ 4355.644730][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.644730][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.644730][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.644730][ T10] netlink_unicast+0x449/0x710 [ 4355.644730][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.644730][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.644730][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.644730][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.644730][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.644730][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.644730][ T10] [ 4355.646613][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4355.646613][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.646613][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.646613][ T10] ipv6_find_idev+0x102/0x170 [ 4355.646613][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.646613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.646613][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.646613][ T10] netlink_unicast+0x449/0x710 [ 4355.646613][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.646613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.646613][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.646613][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.646613][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.646613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.646613][ T10] [ 4355.648759][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4355.649104][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4355.649104][ T10] netdev_get_by_index+0x5e/0x80 [ 4355.649104][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4355.649104][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4355.649104][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4355.649104][ T10] ipv6_add_addr+0x411/0x2000 [ 4355.649104][ T10] inet6_addr_add+0x30e/0xa40 [ 4355.649104][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4355.649104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.649104][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.649104][ T10] netlink_unicast+0x449/0x710 [ 4355.649104][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.649104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.649104][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.649104][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.649104][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.649104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.649104][ T10] [ 4355.651518][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4355.651518][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4355.651518][ T10] ipv6_find_idev+0x102/0x170 [ 4355.651518][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.651518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.651518][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.651518][ T10] netlink_unicast+0x449/0x710 [ 4355.651518][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.651518][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.651518][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.651518][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.651518][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.651518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.651518][ T10] [ 4355.653437][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4355.653437][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4355.653437][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4355.653437][ T10] ipv6_find_idev+0x102/0x170 [ 4355.653437][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4355.653437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4355.653437][ T10] netlink_rcv_skb+0x130/0x360 [ 4355.653437][ T10] netlink_unicast+0x449/0x710 [ 4355.653437][ T10] netlink_sendmsg+0x723/0xbe0 [ 4355.653437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4355.653437][ T10] ___sys_sendmsg+0xee/0x170 [ 4355.653437][ T10] __sys_sendmsg+0xcd/0x170 [ 4355.653437][ T10] do_syscall_64+0xc6/0x1e0 [ 4355.653437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4355.653437][ T10] [ 4365.891767][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4365.892306][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4365.892306][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.892306][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.892306][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.892306][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.892306][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.892306][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.892306][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.892306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.892306][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.892306][ T10] netlink_unicast+0x449/0x710 [ 4365.892306][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.892306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.892306][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.892306][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.892306][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.892306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.892306][ T10] [ 4365.894552][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4365.894552][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.894552][ T10] ipv6_find_idev+0x102/0x170 [ 4365.894552][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.894552][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.894552][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.894552][ T10] netlink_unicast+0x449/0x710 [ 4365.894552][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.894552][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.894552][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.894552][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.894552][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.894552][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.894552][ T10] [ 4365.896265][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4365.896265][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.896265][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.896265][ T10] ipv6_find_idev+0x102/0x170 [ 4365.896265][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.896265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.896265][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.896265][ T10] netlink_unicast+0x449/0x710 [ 4365.896265][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.896265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.896265][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.896265][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.896265][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.896265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.896265][ T10] [ 4365.898193][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4365.898505][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4365.898505][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.898505][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.898505][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.898505][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.898505][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.898505][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.898505][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.898505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.898505][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.898505][ T10] netlink_unicast+0x449/0x710 [ 4365.898505][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.898505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.898505][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.898505][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.898505][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.898505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.898505][ T10] [ 4365.900732][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4365.900732][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.900732][ T10] ipv6_find_idev+0x102/0x170 [ 4365.900732][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.900732][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.900732][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.900732][ T10] netlink_unicast+0x449/0x710 [ 4365.900732][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.900732][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.900732][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.900732][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.900732][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.900732][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.900732][ T10] [ 4365.902445][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4365.902445][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.902445][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.902445][ T10] ipv6_find_idev+0x102/0x170 [ 4365.902445][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.902445][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.902445][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.902445][ T10] netlink_unicast+0x449/0x710 [ 4365.902445][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.902445][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.902445][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.902445][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.902445][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.902445][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.902445][ T10] [ 4365.904315][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4365.904623][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4365.904623][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.904623][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.904623][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.904623][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.904623][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.904623][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.904623][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.904623][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.904623][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.904623][ T10] netlink_unicast+0x449/0x710 [ 4365.904623][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.904623][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.904623][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.904623][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.904623][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.904623][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.904623][ T10] [ 4365.906846][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4365.906846][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.906846][ T10] ipv6_find_idev+0x102/0x170 [ 4365.906846][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.906846][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.906846][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.906846][ T10] netlink_unicast+0x449/0x710 [ 4365.906846][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.906846][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.906846][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.906846][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.906846][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.906846][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.906846][ T10] [ 4365.908554][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4365.908554][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.908554][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.908554][ T10] ipv6_find_idev+0x102/0x170 [ 4365.908554][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.908554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.908554][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.908554][ T10] netlink_unicast+0x449/0x710 [ 4365.908554][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.908554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.908554][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.908554][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.908554][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.908554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.908554][ T10] [ 4365.910444][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4365.911178][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4365.911178][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.911178][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.911178][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.911178][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.911178][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.911178][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.911178][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.911178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.911178][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.911178][ T10] netlink_unicast+0x449/0x710 [ 4365.911178][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.911178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.911178][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.911178][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.911178][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.911178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.911178][ T10] [ 4365.913395][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4365.913395][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.913395][ T10] ipv6_find_idev+0x102/0x170 [ 4365.913395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.913395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.913395][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.913395][ T10] netlink_unicast+0x449/0x710 [ 4365.913395][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.913395][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.913395][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.913395][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.913395][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.913395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.913395][ T10] [ 4365.915112][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4365.915112][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.915112][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.915112][ T10] ipv6_find_idev+0x102/0x170 [ 4365.915112][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.915112][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.915112][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.915112][ T10] netlink_unicast+0x449/0x710 [ 4365.915112][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.915112][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.915112][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.915112][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.915112][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.915112][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.915112][ T10] [ 4365.917038][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4365.917369][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4365.917369][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.917369][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.917369][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.917369][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.917369][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.917369][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.917369][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.917369][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.917369][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.917369][ T10] netlink_unicast+0x449/0x710 [ 4365.917369][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.917369][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.917369][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.917369][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.917369][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.917369][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.917369][ T10] [ 4365.919586][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4365.919586][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.919586][ T10] ipv6_find_idev+0x102/0x170 [ 4365.919586][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.919586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.919586][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.919586][ T10] netlink_unicast+0x449/0x710 [ 4365.919586][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.919586][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.919586][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.919586][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.919586][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.919586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.919586][ T10] [ 4365.921299][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4365.921299][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.921299][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.921299][ T10] ipv6_find_idev+0x102/0x170 [ 4365.921299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.921299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.921299][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.921299][ T10] netlink_unicast+0x449/0x710 [ 4365.921299][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.921299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.921299][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.921299][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.921299][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.921299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.921299][ T10] [ 4365.923212][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4365.923544][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4365.923544][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.923544][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.923544][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.923544][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.923544][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.923544][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.923544][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.923544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.923544][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.923544][ T10] netlink_unicast+0x449/0x710 [ 4365.923544][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.923544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.923544][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.923544][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.923544][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.923544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.923544][ T10] [ 4365.925778][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4365.925778][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.925778][ T10] ipv6_find_idev+0x102/0x170 [ 4365.925778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.925778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.925778][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.925778][ T10] netlink_unicast+0x449/0x710 [ 4365.925778][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.925778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.925778][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.925778][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.925778][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.925778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.925778][ T10] [ 4365.927685][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4365.927685][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.927685][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.927685][ T10] ipv6_find_idev+0x102/0x170 [ 4365.927685][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.927685][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.927685][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.927685][ T10] netlink_unicast+0x449/0x710 [ 4365.927685][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.927685][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.927685][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.927685][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.927685][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.927685][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.927685][ T10] [ 4365.929913][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4365.930259][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4365.930259][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.930259][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.930259][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.930259][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.930259][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.930259][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.930259][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.930259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.930259][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.930259][ T10] netlink_unicast+0x449/0x710 [ 4365.930259][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.930259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.930259][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.930259][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.930259][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.930259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.930259][ T10] [ 4365.932644][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4365.932644][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.932644][ T10] ipv6_find_idev+0x102/0x170 [ 4365.932644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.932644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.932644][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.932644][ T10] netlink_unicast+0x449/0x710 [ 4365.932644][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.932644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.932644][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.932644][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.932644][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.932644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.932644][ T10] [ 4365.934533][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4365.934533][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.934533][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.934533][ T10] ipv6_find_idev+0x102/0x170 [ 4365.934533][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.934533][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.934533][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.934533][ T10] netlink_unicast+0x449/0x710 [ 4365.934533][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.934533][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.934533][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.934533][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.934533][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.934533][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.934533][ T10] [ 4365.936620][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4365.936970][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4365.936970][ T10] netdev_get_by_index+0x5e/0x80 [ 4365.936970][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4365.936970][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4365.936970][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4365.936970][ T10] ipv6_add_addr+0x411/0x2000 [ 4365.936970][ T10] inet6_addr_add+0x30e/0xa40 [ 4365.936970][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4365.936970][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.936970][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.936970][ T10] netlink_unicast+0x449/0x710 [ 4365.936970][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.936970][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.936970][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.936970][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.936970][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.936970][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.936970][ T10] [ 4365.939345][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4365.939345][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4365.939345][ T10] ipv6_find_idev+0x102/0x170 [ 4365.939345][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.939345][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.939345][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.939345][ T10] netlink_unicast+0x449/0x710 [ 4365.939345][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.939345][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.939345][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.939345][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.939345][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.939345][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.939345][ T10] [ 4365.941286][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4365.941286][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4365.941286][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4365.941286][ T10] ipv6_find_idev+0x102/0x170 [ 4365.941286][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4365.941286][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4365.941286][ T10] netlink_rcv_skb+0x130/0x360 [ 4365.941286][ T10] netlink_unicast+0x449/0x710 [ 4365.941286][ T10] netlink_sendmsg+0x723/0xbe0 [ 4365.941286][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4365.941286][ T10] ___sys_sendmsg+0xee/0x170 [ 4365.941286][ T10] __sys_sendmsg+0xcd/0x170 [ 4365.941286][ T10] do_syscall_64+0xc6/0x1e0 [ 4365.941286][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4365.941286][ T10] [ 4376.179755][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4376.180307][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4376.180307][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.180307][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.180307][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.180307][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.180307][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.180307][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.180307][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.180307][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.180307][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.180307][ T10] netlink_unicast+0x449/0x710 [ 4376.180307][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.180307][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.180307][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.180307][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.180307][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.180307][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.180307][ T10] [ 4376.182596][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4376.182596][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.182596][ T10] ipv6_find_idev+0x102/0x170 [ 4376.182596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.182596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.182596][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.182596][ T10] netlink_unicast+0x449/0x710 [ 4376.182596][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.182596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.182596][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.182596][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.182596][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.182596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.182596][ T10] [ 4376.184341][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4376.184341][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.184341][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.184341][ T10] ipv6_find_idev+0x102/0x170 [ 4376.184341][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.184341][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.184341][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.184341][ T10] netlink_unicast+0x449/0x710 [ 4376.184341][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.184341][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.184341][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.184341][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.184341][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.184341][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.184341][ T10] [ 4376.186253][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4376.186554][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4376.186554][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.186554][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.186554][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.186554][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.186554][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.186554][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.186554][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.186554][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.186554][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.186554][ T10] netlink_unicast+0x449/0x710 [ 4376.186554][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.186554][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.186554][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.186554][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.186554][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.186554][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.186554][ T10] [ 4376.188792][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4376.188792][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.188792][ T10] ipv6_find_idev+0x102/0x170 [ 4376.188792][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.188792][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.188792][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.188792][ T10] netlink_unicast+0x449/0x710 [ 4376.188792][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.188792][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.188792][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.188792][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.188792][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.188792][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.188792][ T10] [ 4376.190527][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4376.190527][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.190527][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.190527][ T10] ipv6_find_idev+0x102/0x170 [ 4376.190527][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.190527][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.190527][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.190527][ T10] netlink_unicast+0x449/0x710 [ 4376.190527][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.190527][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.190527][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.190527][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.190527][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.190527][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.190527][ T10] [ 4376.192426][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4376.192731][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4376.192731][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.192731][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.192731][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.192731][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.192731][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.192731][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.192731][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.192731][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.192731][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.192731][ T10] netlink_unicast+0x449/0x710 [ 4376.192731][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.192731][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.192731][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.192731][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.192731][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.192731][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.192731][ T10] [ 4376.194955][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4376.194955][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.194955][ T10] ipv6_find_idev+0x102/0x170 [ 4376.194955][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.194955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.194955][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.194955][ T10] netlink_unicast+0x449/0x710 [ 4376.194955][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.194955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.194955][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.194955][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.194955][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.194955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.194955][ T10] [ 4376.196691][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4376.196691][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.196691][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.196691][ T10] ipv6_find_idev+0x102/0x170 [ 4376.196691][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.196691][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.196691][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.196691][ T10] netlink_unicast+0x449/0x710 [ 4376.196691][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.196691][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.196691][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.196691][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.196691][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.196691][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.196691][ T10] [ 4376.198599][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4376.199325][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4376.199325][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.199325][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.199325][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.199325][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.199325][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.199325][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.199325][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.199325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.199325][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.199325][ T10] netlink_unicast+0x449/0x710 [ 4376.199325][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.199325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.199325][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.199325][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.199325][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.199325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.199325][ T10] [ 4376.201568][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4376.201568][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.201568][ T10] ipv6_find_idev+0x102/0x170 [ 4376.201568][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.201568][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.201568][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.201568][ T10] netlink_unicast+0x449/0x710 [ 4376.201568][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.201568][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.201568][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.201568][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.201568][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.201568][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.201568][ T10] [ 4376.203309][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4376.203309][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.203309][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.203309][ T10] ipv6_find_idev+0x102/0x170 [ 4376.203309][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.203309][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.203309][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.203309][ T10] netlink_unicast+0x449/0x710 [ 4376.203309][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.203309][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.203309][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.203309][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.203309][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.203309][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.203309][ T10] [ 4376.205241][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4376.205585][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4376.205585][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.205585][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.205585][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.205585][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.205585][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.205585][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.205585][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.205585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.205585][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.205585][ T10] netlink_unicast+0x449/0x710 [ 4376.205585][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.205585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.205585][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.205585][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.205585][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.205585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.205585][ T10] [ 4376.207818][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4376.207818][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.207818][ T10] ipv6_find_idev+0x102/0x170 [ 4376.207818][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.207818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.207818][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.207818][ T10] netlink_unicast+0x449/0x710 [ 4376.207818][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.207818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.207818][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.207818][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.207818][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.207818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.207818][ T10] [ 4376.209550][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4376.209550][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.209550][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.209550][ T10] ipv6_find_idev+0x102/0x170 [ 4376.209550][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.209550][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.209550][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.209550][ T10] netlink_unicast+0x449/0x710 [ 4376.209550][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.209550][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.209550][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.209550][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.209550][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.209550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.209550][ T10] [ 4376.211467][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4376.211815][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4376.211815][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.211815][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.211815][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.211815][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.211815][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.211815][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.211815][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.211815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.211815][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.211815][ T10] netlink_unicast+0x449/0x710 [ 4376.211815][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.211815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.211815][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.211815][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.211815][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.211815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.211815][ T10] [ 4376.214030][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4376.214030][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.214030][ T10] ipv6_find_idev+0x102/0x170 [ 4376.214030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.214030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.214030][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.214030][ T10] netlink_unicast+0x449/0x710 [ 4376.214030][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.214030][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.214030][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.214030][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.214030][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.214030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.214030][ T10] [ 4376.215934][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4376.215934][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.215934][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.215934][ T10] ipv6_find_idev+0x102/0x170 [ 4376.215934][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.215934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.215934][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.215934][ T10] netlink_unicast+0x449/0x710 [ 4376.215934][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.215934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.215934][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.215934][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.215934][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.215934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.215934][ T10] [ 4376.218170][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4376.218512][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4376.218512][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.218512][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.218512][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.218512][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.218512][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.218512][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.218512][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.218512][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.218512][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.218512][ T10] netlink_unicast+0x449/0x710 [ 4376.218512][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.218512][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.218512][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.218512][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.218512][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.218512][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.218512][ T10] [ 4376.220905][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4376.220905][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.220905][ T10] ipv6_find_idev+0x102/0x170 [ 4376.220905][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.220905][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.220905][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.220905][ T10] netlink_unicast+0x449/0x710 [ 4376.220905][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.220905][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.220905][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.220905][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.220905][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.220905][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.220905][ T10] [ 4376.222791][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4376.222791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.222791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.222791][ T10] ipv6_find_idev+0x102/0x170 [ 4376.222791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.222791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.222791][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.222791][ T10] netlink_unicast+0x449/0x710 [ 4376.222791][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.222791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.222791][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.222791][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.222791][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.222791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.222791][ T10] [ 4376.224868][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4376.225210][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4376.225210][ T10] netdev_get_by_index+0x5e/0x80 [ 4376.225210][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4376.225210][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4376.225210][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4376.225210][ T10] ipv6_add_addr+0x411/0x2000 [ 4376.225210][ T10] inet6_addr_add+0x30e/0xa40 [ 4376.225210][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4376.225210][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.225210][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.225210][ T10] netlink_unicast+0x449/0x710 [ 4376.225210][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.225210][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.225210][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.225210][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.225210][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.225210][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.225210][ T10] [ 4376.227599][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4376.227599][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4376.227599][ T10] ipv6_find_idev+0x102/0x170 [ 4376.227599][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.227599][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.227599][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.227599][ T10] netlink_unicast+0x449/0x710 [ 4376.227599][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.227599][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.227599][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.227599][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.227599][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.227599][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.227599][ T10] [ 4376.229486][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4376.229486][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4376.229486][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4376.229486][ T10] ipv6_find_idev+0x102/0x170 [ 4376.229486][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4376.229486][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4376.229486][ T10] netlink_rcv_skb+0x130/0x360 [ 4376.229486][ T10] netlink_unicast+0x449/0x710 [ 4376.229486][ T10] netlink_sendmsg+0x723/0xbe0 [ 4376.229486][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4376.229486][ T10] ___sys_sendmsg+0xee/0x170 [ 4376.229486][ T10] __sys_sendmsg+0xcd/0x170 [ 4376.229486][ T10] do_syscall_64+0xc6/0x1e0 [ 4376.229486][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4376.229486][ T10] [ 4386.467772][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4386.468312][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4386.468312][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.468312][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.468312][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.468312][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.468312][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.468312][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.468312][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.468312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.468312][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.468312][ T10] netlink_unicast+0x449/0x710 [ 4386.468312][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.468312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.468312][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.468312][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.468312][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.468312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.468312][ T10] [ 4386.470578][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4386.470578][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.470578][ T10] ipv6_find_idev+0x102/0x170 [ 4386.470578][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.470578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.470578][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.470578][ T10] netlink_unicast+0x449/0x710 [ 4386.470578][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.470578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.470578][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.470578][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.470578][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.470578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.470578][ T10] [ 4386.472299][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4386.472299][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.472299][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.472299][ T10] ipv6_find_idev+0x102/0x170 [ 4386.472299][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.472299][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.472299][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.472299][ T10] netlink_unicast+0x449/0x710 [ 4386.472299][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.472299][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.472299][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.472299][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.472299][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.472299][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.472299][ T10] [ 4386.474258][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4386.474560][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4386.474560][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.474560][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.474560][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.474560][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.474560][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.474560][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.474560][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.474560][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.474560][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.474560][ T10] netlink_unicast+0x449/0x710 [ 4386.474560][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.474560][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.474560][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.474560][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.474560][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.474560][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.474560][ T10] [ 4386.476770][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4386.476770][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.476770][ T10] ipv6_find_idev+0x102/0x170 [ 4386.476770][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.476770][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.476770][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.476770][ T10] netlink_unicast+0x449/0x710 [ 4386.476770][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.476770][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.476770][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.476770][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.476770][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.476770][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.476770][ T10] [ 4386.478481][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4386.478481][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.478481][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.478481][ T10] ipv6_find_idev+0x102/0x170 [ 4386.478481][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.478481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.478481][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.478481][ T10] netlink_unicast+0x449/0x710 [ 4386.478481][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.478481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.478481][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.478481][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.478481][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.478481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.478481][ T10] [ 4386.480384][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4386.480683][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4386.480683][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.480683][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.480683][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.480683][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.480683][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.480683][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.480683][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.480683][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.480683][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.480683][ T10] netlink_unicast+0x449/0x710 [ 4386.480683][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.480683][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.480683][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.480683][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.480683][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.480683][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.480683][ T10] [ 4386.482938][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4386.482938][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.482938][ T10] ipv6_find_idev+0x102/0x170 [ 4386.482938][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.482938][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.482938][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.482938][ T10] netlink_unicast+0x449/0x710 [ 4386.482938][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.482938][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.482938][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.482938][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.482938][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.482938][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.482938][ T10] [ 4386.484661][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4386.484661][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.484661][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.484661][ T10] ipv6_find_idev+0x102/0x170 [ 4386.484661][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.484661][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.484661][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.484661][ T10] netlink_unicast+0x449/0x710 [ 4386.484661][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.484661][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.484661][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.484661][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.484661][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.484661][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.484661][ T10] [ 4386.486543][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4386.487279][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4386.487279][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.487279][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.487279][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.487279][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.487279][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.487279][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.487279][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.487279][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.487279][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.487279][ T10] netlink_unicast+0x449/0x710 [ 4386.487279][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.487279][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.487279][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.487279][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.487279][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.487279][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.487279][ T10] [ 4386.489498][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4386.489498][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.489498][ T10] ipv6_find_idev+0x102/0x170 [ 4386.489498][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.489498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.489498][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.489498][ T10] netlink_unicast+0x449/0x710 [ 4386.489498][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.489498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.489498][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.489498][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.489498][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.489498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.489498][ T10] [ 4386.491215][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4386.491215][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.491215][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.491215][ T10] ipv6_find_idev+0x102/0x170 [ 4386.491215][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.491215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.491215][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.491215][ T10] netlink_unicast+0x449/0x710 [ 4386.491215][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.491215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.491215][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.491215][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.491215][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.491215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.491215][ T10] [ 4386.493140][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4386.493477][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4386.493477][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.493477][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.493477][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.493477][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.493477][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.493477][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.493477][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.493477][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.493477][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.493477][ T10] netlink_unicast+0x449/0x710 [ 4386.493477][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.493477][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.493477][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.493477][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.493477][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.493477][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.493477][ T10] [ 4386.495706][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4386.495706][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.495706][ T10] ipv6_find_idev+0x102/0x170 [ 4386.495706][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.495706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.495706][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.495706][ T10] netlink_unicast+0x449/0x710 [ 4386.495706][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.495706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.495706][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.495706][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.495706][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.495706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.495706][ T10] [ 4386.497416][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4386.497416][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.497416][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.497416][ T10] ipv6_find_idev+0x102/0x170 [ 4386.497416][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.497416][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.497416][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.497416][ T10] netlink_unicast+0x449/0x710 [ 4386.497416][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.497416][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.497416][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.497416][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.497416][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.497416][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.497416][ T10] [ 4386.499341][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4386.499677][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4386.499677][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.499677][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.499677][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.499677][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.499677][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.499677][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.499677][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.499677][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.499677][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.499677][ T10] netlink_unicast+0x449/0x710 [ 4386.499677][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.499677][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.499677][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.499677][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.499677][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.499677][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.499677][ T10] [ 4386.501910][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4386.501910][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.501910][ T10] ipv6_find_idev+0x102/0x170 [ 4386.501910][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.501910][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.501910][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.501910][ T10] netlink_unicast+0x449/0x710 [ 4386.501910][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.501910][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.501910][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.501910][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.501910][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.501910][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.501910][ T10] [ 4386.503808][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4386.503808][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.503808][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.503808][ T10] ipv6_find_idev+0x102/0x170 [ 4386.503808][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.503808][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.503808][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.503808][ T10] netlink_unicast+0x449/0x710 [ 4386.503808][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.503808][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.503808][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.503808][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.503808][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.503808][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.503808][ T10] [ 4386.505962][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4386.506305][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4386.506305][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.506305][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.506305][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.506305][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.506305][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.506305][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.506305][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.506305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.506305][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.506305][ T10] netlink_unicast+0x449/0x710 [ 4386.506305][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.506305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.506305][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.506305][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.506305][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.506305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.506305][ T10] [ 4386.508757][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4386.508757][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.508757][ T10] ipv6_find_idev+0x102/0x170 [ 4386.508757][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.508757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.508757][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.508757][ T10] netlink_unicast+0x449/0x710 [ 4386.508757][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.508757][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.508757][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.508757][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.508757][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.508757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.508757][ T10] [ 4386.510662][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4386.510662][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.510662][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.510662][ T10] ipv6_find_idev+0x102/0x170 [ 4386.510662][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.510662][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.510662][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.510662][ T10] netlink_unicast+0x449/0x710 [ 4386.510662][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.510662][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.510662][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.510662][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.510662][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.510662][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.510662][ T10] [ 4386.512777][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4386.513114][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4386.513114][ T10] netdev_get_by_index+0x5e/0x80 [ 4386.513114][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4386.513114][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4386.513114][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4386.513114][ T10] ipv6_add_addr+0x411/0x2000 [ 4386.513114][ T10] inet6_addr_add+0x30e/0xa40 [ 4386.513114][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4386.513114][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.513114][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.513114][ T10] netlink_unicast+0x449/0x710 [ 4386.513114][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.513114][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.513114][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.513114][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.513114][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.513114][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.513114][ T10] [ 4386.515513][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4386.515513][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4386.515513][ T10] ipv6_find_idev+0x102/0x170 [ 4386.515513][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.515513][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.515513][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.515513][ T10] netlink_unicast+0x449/0x710 [ 4386.515513][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.515513][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.515513][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.515513][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.515513][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.515513][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.515513][ T10] [ 4386.517388][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4386.517388][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4386.517388][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4386.517388][ T10] ipv6_find_idev+0x102/0x170 [ 4386.517388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4386.517388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4386.517388][ T10] netlink_rcv_skb+0x130/0x360 [ 4386.517388][ T10] netlink_unicast+0x449/0x710 [ 4386.517388][ T10] netlink_sendmsg+0x723/0xbe0 [ 4386.517388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4386.517388][ T10] ___sys_sendmsg+0xee/0x170 [ 4386.517388][ T10] __sys_sendmsg+0xcd/0x170 [ 4386.517388][ T10] do_syscall_64+0xc6/0x1e0 [ 4386.517388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4386.517388][ T10] [ 4396.755785][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4396.756293][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4396.756293][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.756293][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.756293][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.756293][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.756293][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.756293][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.756293][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.756293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.756293][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.756293][ T10] netlink_unicast+0x449/0x710 [ 4396.756293][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.756293][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.756293][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.756293][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.756293][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.756293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.756293][ T10] [ 4396.758487][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4396.758487][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.758487][ T10] ipv6_find_idev+0x102/0x170 [ 4396.758487][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.758487][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.758487][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.758487][ T10] netlink_unicast+0x449/0x710 [ 4396.758487][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.758487][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.758487][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.758487][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.758487][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.758487][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.758487][ T10] [ 4396.760180][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4396.760180][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.760180][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.760180][ T10] ipv6_find_idev+0x102/0x170 [ 4396.760180][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.760180][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.760180][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.760180][ T10] netlink_unicast+0x449/0x710 [ 4396.760180][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.760180][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.760180][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.760180][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.760180][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.760180][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.760180][ T10] [ 4396.762016][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4396.762305][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4396.762305][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.762305][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.762305][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.762305][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.762305][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.762305][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.762305][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.762305][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.762305][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.762305][ T10] netlink_unicast+0x449/0x710 [ 4396.762305][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.762305][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.762305][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.762305][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.762305][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.762305][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.762305][ T10] [ 4396.764475][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4396.764475][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.764475][ T10] ipv6_find_idev+0x102/0x170 [ 4396.764475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.764475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.764475][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.764475][ T10] netlink_unicast+0x449/0x710 [ 4396.764475][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.764475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.764475][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.764475][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.764475][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.764475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.764475][ T10] [ 4396.766147][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4396.766147][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.766147][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.766147][ T10] ipv6_find_idev+0x102/0x170 [ 4396.766147][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.766147][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.766147][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.766147][ T10] netlink_unicast+0x449/0x710 [ 4396.766147][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.766147][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.766147][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.766147][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.766147][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.766147][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.766147][ T10] [ 4396.767954][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4396.768238][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4396.768238][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.768238][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.768238][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.768238][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.768238][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.768238][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.768238][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.768238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.768238][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.768238][ T10] netlink_unicast+0x449/0x710 [ 4396.768238][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.768238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.768238][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.768238][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.768238][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.768238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.768238][ T10] [ 4396.770413][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4396.770413][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.770413][ T10] ipv6_find_idev+0x102/0x170 [ 4396.770413][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.770413][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.770413][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.770413][ T10] netlink_unicast+0x449/0x710 [ 4396.770413][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.770413][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.770413][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.770413][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.770413][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.770413][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.770413][ T10] [ 4396.772082][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4396.772082][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.772082][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.772082][ T10] ipv6_find_idev+0x102/0x170 [ 4396.772082][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.772082][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.772082][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.772082][ T10] netlink_unicast+0x449/0x710 [ 4396.772082][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.772082][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.772082][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.772082][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.772082][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.772082][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.772082][ T10] [ 4396.773916][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4396.774196][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4396.774196][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.774196][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.774196][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.774196][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.774196][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.774196][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.774196][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.774196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.774196][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.774196][ T10] netlink_unicast+0x449/0x710 [ 4396.774196][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.774196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.774196][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.774196][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.774196][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.774196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.774196][ T10] [ 4396.776373][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4396.776373][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.776373][ T10] ipv6_find_idev+0x102/0x170 [ 4396.776373][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.776373][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.776373][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.776373][ T10] netlink_unicast+0x449/0x710 [ 4396.776373][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.776373][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.776373][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.776373][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.776373][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.776373][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.776373][ T10] [ 4396.778065][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4396.778065][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.778065][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.778065][ T10] ipv6_find_idev+0x102/0x170 [ 4396.778065][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.778065][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.778065][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.778065][ T10] netlink_unicast+0x449/0x710 [ 4396.778065][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.778065][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.778065][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.778065][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.778065][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.778065][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.778065][ T10] [ 4396.779898][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4396.780178][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4396.780178][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.780178][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.780178][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.780178][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.780178][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.780178][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.780178][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.780178][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.780178][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.780178][ T10] netlink_unicast+0x449/0x710 [ 4396.780178][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.780178][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.780178][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.780178][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.780178][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.780178][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.780178][ T10] [ 4396.782377][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4396.782377][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.782377][ T10] ipv6_find_idev+0x102/0x170 [ 4396.782377][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.782377][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.782377][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.782377][ T10] netlink_unicast+0x449/0x710 [ 4396.782377][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.782377][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.782377][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.782377][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.782377][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.782377][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.782377][ T10] [ 4396.784176][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4396.784176][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.784176][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.784176][ T10] ipv6_find_idev+0x102/0x170 [ 4396.784176][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.784176][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.784176][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.784176][ T10] netlink_unicast+0x449/0x710 [ 4396.784176][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.784176][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.784176][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.784176][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.784176][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.784176][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.784176][ T10] [ 4396.786311][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4396.786592][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4396.786592][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.786592][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.786592][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.786592][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.786592][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.786592][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.786592][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.786592][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.786592][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.786592][ T10] netlink_unicast+0x449/0x710 [ 4396.786592][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.786592][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.786592][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.786592][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.786592][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.786592][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.786592][ T10] [ 4396.788921][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4396.788921][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.788921][ T10] ipv6_find_idev+0x102/0x170 [ 4396.788921][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.788921][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.788921][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.788921][ T10] netlink_unicast+0x449/0x710 [ 4396.788921][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.788921][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.788921][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.788921][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.788921][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.788921][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.788921][ T10] [ 4396.790775][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4396.790775][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.790775][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.790775][ T10] ipv6_find_idev+0x102/0x170 [ 4396.790775][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.790775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.790775][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.790775][ T10] netlink_unicast+0x449/0x710 [ 4396.790775][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.790775][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.790775][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.790775][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.790775][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.790775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.790775][ T10] [ 4396.792900][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4396.793185][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4396.793185][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.793185][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.793185][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.793185][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.793185][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.793185][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.793185][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.793185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.793185][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.793185][ T10] netlink_unicast+0x449/0x710 [ 4396.793185][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.793185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.793185][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.793185][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.793185][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.793185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.793185][ T10] [ 4396.796005][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4396.796005][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.796005][ T10] ipv6_find_idev+0x102/0x170 [ 4396.796005][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.796005][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.796005][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.796005][ T10] netlink_unicast+0x449/0x710 [ 4396.796005][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.796005][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.796005][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.796005][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.796005][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.796005][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.796005][ T10] [ 4396.797919][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4396.797919][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.797919][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.797919][ T10] ipv6_find_idev+0x102/0x170 [ 4396.797919][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.797919][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.797919][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.797919][ T10] netlink_unicast+0x449/0x710 [ 4396.797919][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.797919][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.797919][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.797919][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.797919][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.797919][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.797919][ T10] [ 4396.800032][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4396.800316][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4396.800316][ T10] netdev_get_by_index+0x5e/0x80 [ 4396.800316][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4396.800316][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4396.800316][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4396.800316][ T10] ipv6_add_addr+0x411/0x2000 [ 4396.800316][ T10] inet6_addr_add+0x30e/0xa40 [ 4396.800316][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4396.800316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.800316][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.800316][ T10] netlink_unicast+0x449/0x710 [ 4396.800316][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.800316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.800316][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.800316][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.800316][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.800316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.800316][ T10] [ 4396.802656][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4396.802656][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4396.802656][ T10] ipv6_find_idev+0x102/0x170 [ 4396.802656][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.802656][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.802656][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.802656][ T10] netlink_unicast+0x449/0x710 [ 4396.802656][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.802656][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.802656][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.802656][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.802656][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.802656][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.802656][ T10] [ 4396.804497][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4396.804497][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4396.804497][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4396.804497][ T10] ipv6_find_idev+0x102/0x170 [ 4396.804497][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4396.804497][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4396.804497][ T10] netlink_rcv_skb+0x130/0x360 [ 4396.804497][ T10] netlink_unicast+0x449/0x710 [ 4396.804497][ T10] netlink_sendmsg+0x723/0xbe0 [ 4396.804497][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4396.804497][ T10] ___sys_sendmsg+0xee/0x170 [ 4396.804497][ T10] __sys_sendmsg+0xcd/0x170 [ 4396.804497][ T10] do_syscall_64+0xc6/0x1e0 [ 4396.804497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4396.804497][ T10] [ 4407.259812][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 4407.260327][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4407.260327][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.260327][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.260327][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.260327][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.260327][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.260327][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.260327][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.260327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.260327][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.260327][ T10] netlink_unicast+0x449/0x710 [ 4407.260327][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.260327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.260327][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.260327][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.260327][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.260327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.260327][ T10] [ 4407.262544][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4407.262544][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.262544][ T10] ipv6_find_idev+0x102/0x170 [ 4407.262544][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.262544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.262544][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.262544][ T10] netlink_unicast+0x449/0x710 [ 4407.262544][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.262544][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.262544][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.262544][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.262544][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.262544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.262544][ T10] [ 4407.264245][ T10] ref_tracker: ns1eth4@ffff888005bd95c0 has 1/3 users at [ 4407.264245][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.264245][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.264245][ T10] ipv6_find_idev+0x102/0x170 [ 4407.264245][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.264245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.264245][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.264245][ T10] netlink_unicast+0x449/0x710 [ 4407.264245][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.264245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.264245][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.264245][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.264245][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.264245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.264245][ T10] [ 4407.266140][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 4407.266436][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4407.266436][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.266436][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.266436][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.266436][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.266436][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.266436][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.266436][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.266436][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.266436][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.266436][ T10] netlink_unicast+0x449/0x710 [ 4407.266436][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.266436][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.266436][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.266436][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.266436][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.266436][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.266436][ T10] [ 4407.268597][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4407.268597][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.268597][ T10] ipv6_find_idev+0x102/0x170 [ 4407.268597][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.268597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.268597][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.268597][ T10] netlink_unicast+0x449/0x710 [ 4407.268597][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.268597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.268597][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.268597][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.268597][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.268597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.268597][ T10] [ 4407.270291][ T10] ref_tracker: ns2eth4@ffff888007d895c0 has 1/3 users at [ 4407.270291][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.270291][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.270291][ T10] ipv6_find_idev+0x102/0x170 [ 4407.270291][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.270291][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.270291][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.270291][ T10] netlink_unicast+0x449/0x710 [ 4407.270291][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.270291][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.270291][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.270291][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.270291][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.270291][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.270291][ T10] [ 4407.272123][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 4407.272410][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4407.272410][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.272410][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.272410][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.272410][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.272410][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.272410][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.272410][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.272410][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.272410][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.272410][ T10] netlink_unicast+0x449/0x710 [ 4407.272410][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.272410][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.272410][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.272410][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.272410][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.272410][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.272410][ T10] [ 4407.274577][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4407.274577][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.274577][ T10] ipv6_find_idev+0x102/0x170 [ 4407.274577][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.274577][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.274577][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.274577][ T10] netlink_unicast+0x449/0x710 [ 4407.274577][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.274577][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.274577][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.274577][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.274577][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.274577][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.274577][ T10] [ 4407.276247][ T10] ref_tracker: ns1eth3@ffff888007b815c0 has 1/3 users at [ 4407.276247][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.276247][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.276247][ T10] ipv6_find_idev+0x102/0x170 [ 4407.276247][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.276247][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.276247][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.276247][ T10] netlink_unicast+0x449/0x710 [ 4407.276247][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.276247][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.276247][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.276247][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.276247][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.276247][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.276247][ T10] [ 4407.278086][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 4407.278364][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4407.278364][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.278364][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.278364][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.278364][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.278364][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.278364][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.278364][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.278364][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.278364][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.278364][ T10] netlink_unicast+0x449/0x710 [ 4407.278364][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.278364][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.278364][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.278364][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.278364][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.278364][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.278364][ T10] [ 4407.280562][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4407.280562][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.280562][ T10] ipv6_find_idev+0x102/0x170 [ 4407.280562][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.280562][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.280562][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.280562][ T10] netlink_unicast+0x449/0x710 [ 4407.280562][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.280562][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.280562][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.280562][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.280562][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.280562][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.280562][ T10] [ 4407.282238][ T10] ref_tracker: ns2eth3@ffff888007b845c0 has 1/3 users at [ 4407.282238][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.282238][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.282238][ T10] ipv6_find_idev+0x102/0x170 [ 4407.282238][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.282238][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.282238][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.282238][ T10] netlink_unicast+0x449/0x710 [ 4407.282238][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.282238][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.282238][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.282238][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.282238][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.282238][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.282238][ T10] [ 4407.284124][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 4407.284408][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4407.284408][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.284408][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.284408][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.284408][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.284408][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.284408][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.284408][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.284408][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.284408][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.284408][ T10] netlink_unicast+0x449/0x710 [ 4407.284408][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.284408][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.284408][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.284408][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.284408][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.284408][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.284408][ T10] [ 4407.286597][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4407.286597][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.286597][ T10] ipv6_find_idev+0x102/0x170 [ 4407.286597][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.286597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.286597][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.286597][ T10] netlink_unicast+0x449/0x710 [ 4407.286597][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.286597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.286597][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.286597][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.286597][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.286597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.286597][ T10] [ 4407.288868][ T10] ref_tracker: ns1eth2@ffff888004dcc5c0 has 1/3 users at [ 4407.288868][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.288868][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.288868][ T10] ipv6_find_idev+0x102/0x170 [ 4407.288868][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.288868][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.288868][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.288868][ T10] netlink_unicast+0x449/0x710 [ 4407.288868][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.288868][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.288868][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.288868][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.288868][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.288868][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.288868][ T10] [ 4407.290983][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 4407.291264][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4407.291264][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.291264][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.291264][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.291264][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.291264][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.291264][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.291264][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.291264][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.291264][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.291264][ T10] netlink_unicast+0x449/0x710 [ 4407.291264][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.291264][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.291264][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.291264][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.291264][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.291264][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.291264][ T10] [ 4407.293650][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4407.293650][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.293650][ T10] ipv6_find_idev+0x102/0x170 [ 4407.293650][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.293650][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.293650][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.293650][ T10] netlink_unicast+0x449/0x710 [ 4407.293650][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.293650][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.293650][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.293650][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.293650][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.293650][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.293650][ T10] [ 4407.295514][ T10] ref_tracker: ns2eth2@ffff88803c16c5c0 has 1/3 users at [ 4407.295514][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.295514][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.295514][ T10] ipv6_find_idev+0x102/0x170 [ 4407.295514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.295514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.295514][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.295514][ T10] netlink_unicast+0x449/0x710 [ 4407.295514][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.295514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.295514][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.295514][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.295514][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.295514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.295514][ T10] [ 4407.297549][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 4407.297883][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4407.297883][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.297883][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.297883][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.297883][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.297883][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.297883][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.297883][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.297883][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.297883][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.297883][ T10] netlink_unicast+0x449/0x710 [ 4407.297883][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.297883][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.297883][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.297883][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.297883][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.297883][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.297883][ T10] [ 4407.300216][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4407.300216][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.300216][ T10] ipv6_find_idev+0x102/0x170 [ 4407.300216][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.300216][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.300216][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.300216][ T10] netlink_unicast+0x449/0x710 [ 4407.300216][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.300216][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.300216][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.300216][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.300216][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.300216][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.300216][ T10] [ 4407.302110][ T10] ref_tracker: ns1eth1@ffff888007b695c0 has 1/3 users at [ 4407.302110][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.302110][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.302110][ T10] ipv6_find_idev+0x102/0x170 [ 4407.302110][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.302110][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.302110][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.302110][ T10] netlink_unicast+0x449/0x710 [ 4407.302110][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.302110][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.302110][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.302110][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.302110][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.302110][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.302110][ T10] [ 4407.304138][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 4407.304418][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4407.304418][ T10] netdev_get_by_index+0x5e/0x80 [ 4407.304418][ T10] fib6_nh_init+0x3d8/0x15b0 [ 4407.304418][ T10] ip6_route_info_create+0xf18/0x17d0 [ 4407.304418][ T10] addrconf_f6i_alloc+0x244/0x410 [ 4407.304418][ T10] ipv6_add_addr+0x411/0x2000 [ 4407.304418][ T10] inet6_addr_add+0x30e/0xa40 [ 4407.304418][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 4407.304418][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.304418][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.304418][ T10] netlink_unicast+0x449/0x710 [ 4407.304418][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.304418][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.304418][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.304418][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.304418][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.304418][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.304418][ T10] [ 4407.306824][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4407.306824][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 4407.306824][ T10] ipv6_find_idev+0x102/0x170 [ 4407.306824][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.306824][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.306824][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.306824][ T10] netlink_unicast+0x449/0x710 [ 4407.306824][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.306824][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.306824][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.306824][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.306824][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.306824][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.306824][ T10] [ 4407.308670][ T10] ref_tracker: ns2eth1@ffff8880058915c0 has 1/3 users at [ 4407.308670][ T10] neigh_parms_alloc+0x1e5/0x510 [ 4407.308670][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 4407.308670][ T10] ipv6_find_idev+0x102/0x170 [ 4407.308670][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 4407.308670][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4407.308670][ T10] netlink_rcv_skb+0x130/0x360 [ 4407.308670][ T10] netlink_unicast+0x449/0x710 [ 4407.308670][ T10] netlink_sendmsg+0x723/0xbe0 [ 4407.308670][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 4407.308670][ T10] ___sys_sendmsg+0xee/0x170 [ 4407.308670][ T10] __sys_sendmsg+0xcd/0x170 [ 4407.308670][ T10] do_syscall_64+0xc6/0x1e0 [ 4407.308670][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4407.308670][ T10]