[ 796.912251][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 796.913048][ T10] ref_tracker: ns1eth4@ffff888007d8c5c0 has 1/3 users at [ 796.913048][ T10] netdev_get_by_index+0x5e/0x80 [ 796.913048][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.913048][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.913048][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.913048][ T10] ipv6_add_addr+0x411/0x2000 [ 796.913048][ T10] inet6_addr_add+0x30e/0xa40 [ 796.913048][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.913048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.913048][ T10] netlink_rcv_skb+0x130/0x360 [ 796.913048][ T10] netlink_unicast+0x449/0x710 [ 796.913048][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.913048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.913048][ T10] ___sys_sendmsg+0xee/0x170 [ 796.913048][ T10] __sys_sendmsg+0xcd/0x170 [ 796.913048][ T10] do_syscall_64+0xc6/0x1e0 [ 796.913048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.913048][ T10] [ 796.915262][ T10] ref_tracker: ns1eth4@ffff888007d8c5c0 has 1/3 users at [ 796.915262][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.915262][ T10] ipv6_find_idev+0x102/0x170 [ 796.915262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.915262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.915262][ T10] netlink_rcv_skb+0x130/0x360 [ 796.915262][ T10] netlink_unicast+0x449/0x710 [ 796.915262][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.915262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.915262][ T10] ___sys_sendmsg+0xee/0x170 [ 796.915262][ T10] __sys_sendmsg+0xcd/0x170 [ 796.915262][ T10] do_syscall_64+0xc6/0x1e0 [ 796.915262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.915262][ T10] [ 796.916801][ T10] ref_tracker: ns1eth4@ffff888007d8c5c0 has 1/3 users at [ 796.916801][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.916801][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.916801][ T10] ipv6_find_idev+0x102/0x170 [ 796.916801][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.916801][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.916801][ T10] netlink_rcv_skb+0x130/0x360 [ 796.916801][ T10] netlink_unicast+0x449/0x710 [ 796.916801][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.916801][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.916801][ T10] ___sys_sendmsg+0xee/0x170 [ 796.916801][ T10] __sys_sendmsg+0xcd/0x170 [ 796.916801][ T10] do_syscall_64+0xc6/0x1e0 [ 796.916801][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.916801][ T10] [ 796.918490][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 796.918755][ T10] ref_tracker: ns2eth4@ffff8880067e45c0 has 1/3 users at [ 796.918755][ T10] netdev_get_by_index+0x5e/0x80 [ 796.918755][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.918755][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.918755][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.918755][ T10] ipv6_add_addr+0x411/0x2000 [ 796.918755][ T10] inet6_addr_add+0x30e/0xa40 [ 796.918755][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.918755][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.918755][ T10] netlink_rcv_skb+0x130/0x360 [ 796.918755][ T10] netlink_unicast+0x449/0x710 [ 796.918755][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.918755][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.918755][ T10] ___sys_sendmsg+0xee/0x170 [ 796.918755][ T10] __sys_sendmsg+0xcd/0x170 [ 796.918755][ T10] do_syscall_64+0xc6/0x1e0 [ 796.918755][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.918755][ T10] [ 796.920730][ T10] ref_tracker: ns2eth4@ffff8880067e45c0 has 1/3 users at [ 796.920730][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.920730][ T10] ipv6_find_idev+0x102/0x170 [ 796.920730][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.920730][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.920730][ T10] netlink_rcv_skb+0x130/0x360 [ 796.920730][ T10] netlink_unicast+0x449/0x710 [ 796.920730][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.920730][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.920730][ T10] ___sys_sendmsg+0xee/0x170 [ 796.920730][ T10] __sys_sendmsg+0xcd/0x170 [ 796.920730][ T10] do_syscall_64+0xc6/0x1e0 [ 796.920730][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.920730][ T10] [ 796.922277][ T10] ref_tracker: ns2eth4@ffff8880067e45c0 has 1/3 users at [ 796.922277][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.922277][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.922277][ T10] ipv6_find_idev+0x102/0x170 [ 796.922277][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.922277][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.922277][ T10] netlink_rcv_skb+0x130/0x360 [ 796.922277][ T10] netlink_unicast+0x449/0x710 [ 796.922277][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.922277][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.922277][ T10] ___sys_sendmsg+0xee/0x170 [ 796.922277][ T10] __sys_sendmsg+0xcd/0x170 [ 796.922277][ T10] do_syscall_64+0xc6/0x1e0 [ 796.922277][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.922277][ T10] [ 796.923884][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 796.924154][ T10] ref_tracker: ns1eth3@ffff8880057195c0 has 1/3 users at [ 796.924154][ T10] netdev_get_by_index+0x5e/0x80 [ 796.924154][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.924154][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.924154][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.924154][ T10] ipv6_add_addr+0x411/0x2000 [ 796.924154][ T10] inet6_addr_add+0x30e/0xa40 [ 796.924154][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.924154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.924154][ T10] netlink_rcv_skb+0x130/0x360 [ 796.924154][ T10] netlink_unicast+0x449/0x710 [ 796.924154][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.924154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.924154][ T10] ___sys_sendmsg+0xee/0x170 [ 796.924154][ T10] __sys_sendmsg+0xcd/0x170 [ 796.924154][ T10] do_syscall_64+0xc6/0x1e0 [ 796.924154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.924154][ T10] [ 796.926144][ T10] ref_tracker: ns1eth3@ffff8880057195c0 has 1/3 users at [ 796.926144][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.926144][ T10] ipv6_find_idev+0x102/0x170 [ 796.926144][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.926144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.926144][ T10] netlink_rcv_skb+0x130/0x360 [ 796.926144][ T10] netlink_unicast+0x449/0x710 [ 796.926144][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.926144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.926144][ T10] ___sys_sendmsg+0xee/0x170 [ 796.926144][ T10] __sys_sendmsg+0xcd/0x170 [ 796.926144][ T10] do_syscall_64+0xc6/0x1e0 [ 796.926144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.926144][ T10] [ 796.927701][ T10] ref_tracker: ns1eth3@ffff8880057195c0 has 1/3 users at [ 796.927701][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.927701][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.927701][ T10] ipv6_find_idev+0x102/0x170 [ 796.927701][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.927701][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.927701][ T10] netlink_rcv_skb+0x130/0x360 [ 796.927701][ T10] netlink_unicast+0x449/0x710 [ 796.927701][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.927701][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.927701][ T10] ___sys_sendmsg+0xee/0x170 [ 796.927701][ T10] __sys_sendmsg+0xcd/0x170 [ 796.927701][ T10] do_syscall_64+0xc6/0x1e0 [ 796.927701][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.927701][ T10] [ 796.929354][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 796.929622][ T10] ref_tracker: ns2eth3@ffff888005e015c0 has 1/3 users at [ 796.929622][ T10] netdev_get_by_index+0x5e/0x80 [ 796.929622][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.929622][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.929622][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.929622][ T10] ipv6_add_addr+0x411/0x2000 [ 796.929622][ T10] inet6_addr_add+0x30e/0xa40 [ 796.929622][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.929622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.929622][ T10] netlink_rcv_skb+0x130/0x360 [ 796.929622][ T10] netlink_unicast+0x449/0x710 [ 796.929622][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.929622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.929622][ T10] ___sys_sendmsg+0xee/0x170 [ 796.929622][ T10] __sys_sendmsg+0xcd/0x170 [ 796.929622][ T10] do_syscall_64+0xc6/0x1e0 [ 796.929622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.929622][ T10] [ 796.931654][ T10] ref_tracker: ns2eth3@ffff888005e015c0 has 1/3 users at [ 796.931654][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.931654][ T10] ipv6_find_idev+0x102/0x170 [ 796.931654][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.931654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.931654][ T10] netlink_rcv_skb+0x130/0x360 [ 796.931654][ T10] netlink_unicast+0x449/0x710 [ 796.931654][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.931654][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.931654][ T10] ___sys_sendmsg+0xee/0x170 [ 796.931654][ T10] __sys_sendmsg+0xcd/0x170 [ 796.931654][ T10] do_syscall_64+0xc6/0x1e0 [ 796.931654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.931654][ T10] [ 796.933249][ T10] ref_tracker: ns2eth3@ffff888005e015c0 has 1/3 users at [ 796.933249][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.933249][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.933249][ T10] ipv6_find_idev+0x102/0x170 [ 796.933249][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.933249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.933249][ T10] netlink_rcv_skb+0x130/0x360 [ 796.933249][ T10] netlink_unicast+0x449/0x710 [ 796.933249][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.933249][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.933249][ T10] ___sys_sendmsg+0xee/0x170 [ 796.933249][ T10] __sys_sendmsg+0xcd/0x170 [ 796.933249][ T10] do_syscall_64+0xc6/0x1e0 [ 796.933249][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.933249][ T10] [ 796.935123][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 796.935437][ T10] ref_tracker: ns1eth2@ffff8880065695c0 has 1/3 users at [ 796.935437][ T10] netdev_get_by_index+0x5e/0x80 [ 796.935437][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.935437][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.935437][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.935437][ T10] ipv6_add_addr+0x411/0x2000 [ 796.935437][ T10] inet6_addr_add+0x30e/0xa40 [ 796.935437][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.935437][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.935437][ T10] netlink_rcv_skb+0x130/0x360 [ 796.935437][ T10] netlink_unicast+0x449/0x710 [ 796.935437][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.935437][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.935437][ T10] ___sys_sendmsg+0xee/0x170 [ 796.935437][ T10] __sys_sendmsg+0xcd/0x170 [ 796.935437][ T10] do_syscall_64+0xc6/0x1e0 [ 796.935437][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.935437][ T10] [ 796.937622][ T10] ref_tracker: ns1eth2@ffff8880065695c0 has 1/3 users at [ 796.937622][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.937622][ T10] ipv6_find_idev+0x102/0x170 [ 796.937622][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.937622][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.937622][ T10] netlink_rcv_skb+0x130/0x360 [ 796.937622][ T10] netlink_unicast+0x449/0x710 [ 796.937622][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.937622][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.937622][ T10] ___sys_sendmsg+0xee/0x170 [ 796.937622][ T10] __sys_sendmsg+0xcd/0x170 [ 796.937622][ T10] do_syscall_64+0xc6/0x1e0 [ 796.937622][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.937622][ T10] [ 796.939228][ T10] ref_tracker: ns1eth2@ffff8880065695c0 has 1/3 users at [ 796.939228][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.939228][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.939228][ T10] ipv6_find_idev+0x102/0x170 [ 796.939228][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.939228][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.939228][ T10] netlink_rcv_skb+0x130/0x360 [ 796.939228][ T10] netlink_unicast+0x449/0x710 [ 796.939228][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.939228][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.939228][ T10] ___sys_sendmsg+0xee/0x170 [ 796.939228][ T10] __sys_sendmsg+0xcd/0x170 [ 796.939228][ T10] do_syscall_64+0xc6/0x1e0 [ 796.939228][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.939228][ T10] [ 796.941166][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 796.941481][ T10] ref_tracker: ns2eth2@ffff888006ab15c0 has 1/3 users at [ 796.941481][ T10] netdev_get_by_index+0x5e/0x80 [ 796.941481][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.941481][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.941481][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.941481][ T10] ipv6_add_addr+0x411/0x2000 [ 796.941481][ T10] inet6_addr_add+0x30e/0xa40 [ 796.941481][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.941481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.941481][ T10] netlink_rcv_skb+0x130/0x360 [ 796.941481][ T10] netlink_unicast+0x449/0x710 [ 796.941481][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.941481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.941481][ T10] ___sys_sendmsg+0xee/0x170 [ 796.941481][ T10] __sys_sendmsg+0xcd/0x170 [ 796.941481][ T10] do_syscall_64+0xc6/0x1e0 [ 796.941481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.941481][ T10] [ 796.943563][ T10] ref_tracker: ns2eth2@ffff888006ab15c0 has 1/3 users at [ 796.943563][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.943563][ T10] ipv6_find_idev+0x102/0x170 [ 796.943563][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.943563][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.943563][ T10] netlink_rcv_skb+0x130/0x360 [ 796.943563][ T10] netlink_unicast+0x449/0x710 [ 796.943563][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.943563][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.943563][ T10] ___sys_sendmsg+0xee/0x170 [ 796.943563][ T10] __sys_sendmsg+0xcd/0x170 [ 796.943563][ T10] do_syscall_64+0xc6/0x1e0 [ 796.943563][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.943563][ T10] [ 796.945119][ T10] ref_tracker: ns2eth2@ffff888006ab15c0 has 1/3 users at [ 796.945119][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.945119][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.945119][ T10] ipv6_find_idev+0x102/0x170 [ 796.945119][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.945119][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.945119][ T10] netlink_rcv_skb+0x130/0x360 [ 796.945119][ T10] netlink_unicast+0x449/0x710 [ 796.945119][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.945119][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.945119][ T10] ___sys_sendmsg+0xee/0x170 [ 796.945119][ T10] __sys_sendmsg+0xcd/0x170 [ 796.945119][ T10] do_syscall_64+0xc6/0x1e0 [ 796.945119][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.945119][ T10] [ 796.946819][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 796.947144][ T10] ref_tracker: ns1eth1@ffff88803a9945c0 has 1/3 users at [ 796.947144][ T10] netdev_get_by_index+0x5e/0x80 [ 796.947144][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.947144][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.947144][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.947144][ T10] ipv6_add_addr+0x411/0x2000 [ 796.947144][ T10] inet6_addr_add+0x30e/0xa40 [ 796.947144][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.947144][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.947144][ T10] netlink_rcv_skb+0x130/0x360 [ 796.947144][ T10] netlink_unicast+0x449/0x710 [ 796.947144][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.947144][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.947144][ T10] ___sys_sendmsg+0xee/0x170 [ 796.947144][ T10] __sys_sendmsg+0xcd/0x170 [ 796.947144][ T10] do_syscall_64+0xc6/0x1e0 [ 796.947144][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.947144][ T10] [ 796.949158][ T10] ref_tracker: ns1eth1@ffff88803a9945c0 has 1/3 users at [ 796.949158][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.949158][ T10] ipv6_find_idev+0x102/0x170 [ 796.949158][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.949158][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.949158][ T10] netlink_rcv_skb+0x130/0x360 [ 796.949158][ T10] netlink_unicast+0x449/0x710 [ 796.949158][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.949158][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.949158][ T10] ___sys_sendmsg+0xee/0x170 [ 796.949158][ T10] __sys_sendmsg+0xcd/0x170 [ 796.949158][ T10] do_syscall_64+0xc6/0x1e0 [ 796.949158][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.949158][ T10] [ 796.950878][ T10] ref_tracker: ns1eth1@ffff88803a9945c0 has 1/3 users at [ 796.950878][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.950878][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.950878][ T10] ipv6_find_idev+0x102/0x170 [ 796.950878][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.950878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.950878][ T10] netlink_rcv_skb+0x130/0x360 [ 796.950878][ T10] netlink_unicast+0x449/0x710 [ 796.950878][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.950878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.950878][ T10] ___sys_sendmsg+0xee/0x170 [ 796.950878][ T10] __sys_sendmsg+0xcd/0x170 [ 796.950878][ T10] do_syscall_64+0xc6/0x1e0 [ 796.950878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.950878][ T10] [ 796.952945][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 796.953265][ T10] ref_tracker: ns2eth1@ffff88803abc45c0 has 1/3 users at [ 796.953265][ T10] netdev_get_by_index+0x5e/0x80 [ 796.953265][ T10] fib6_nh_init+0x3d8/0x15b0 [ 796.953265][ T10] ip6_route_info_create+0xf18/0x17d0 [ 796.953265][ T10] addrconf_f6i_alloc+0x244/0x410 [ 796.953265][ T10] ipv6_add_addr+0x411/0x2000 [ 796.953265][ T10] inet6_addr_add+0x30e/0xa40 [ 796.953265][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 796.953265][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.953265][ T10] netlink_rcv_skb+0x130/0x360 [ 796.953265][ T10] netlink_unicast+0x449/0x710 [ 796.953265][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.953265][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.953265][ T10] ___sys_sendmsg+0xee/0x170 [ 796.953265][ T10] __sys_sendmsg+0xcd/0x170 [ 796.953265][ T10] do_syscall_64+0xc6/0x1e0 [ 796.953265][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.953265][ T10] [ 796.955427][ T10] ref_tracker: ns2eth1@ffff88803abc45c0 has 1/3 users at [ 796.955427][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 796.955427][ T10] ipv6_find_idev+0x102/0x170 [ 796.955427][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.955427][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.955427][ T10] netlink_rcv_skb+0x130/0x360 [ 796.955427][ T10] netlink_unicast+0x449/0x710 [ 796.955427][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.955427][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.955427][ T10] ___sys_sendmsg+0xee/0x170 [ 796.955427][ T10] __sys_sendmsg+0xcd/0x170 [ 796.955427][ T10] do_syscall_64+0xc6/0x1e0 [ 796.955427][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.955427][ T10] [ 796.957156][ T10] ref_tracker: ns2eth1@ffff88803abc45c0 has 1/3 users at [ 796.957156][ T10] neigh_parms_alloc+0x1e5/0x510 [ 796.957156][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 796.957156][ T10] ipv6_find_idev+0x102/0x170 [ 796.957156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 796.957156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 796.957156][ T10] netlink_rcv_skb+0x130/0x360 [ 796.957156][ T10] netlink_unicast+0x449/0x710 [ 796.957156][ T10] netlink_sendmsg+0x723/0xbe0 [ 796.957156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 796.957156][ T10] ___sys_sendmsg+0xee/0x170 [ 796.957156][ T10] __sys_sendmsg+0xcd/0x170 [ 796.957156][ T10] do_syscall_64+0xc6/0x1e0 [ 796.957156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 796.957156][ T10]