[ 512.318736][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 512.319253][ T10] ref_tracker: ns1eth4@ffff8880058815c0 has 1/3 users at [ 512.319253][ T10] netdev_get_by_index+0x5e/0x80 [ 512.319253][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.319253][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.319253][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.319253][ T10] ipv6_add_addr+0x411/0x2000 [ 512.319253][ T10] inet6_addr_add+0x30e/0xa40 [ 512.319253][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.319253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.319253][ T10] netlink_rcv_skb+0x130/0x360 [ 512.319253][ T10] netlink_unicast+0x449/0x710 [ 512.319253][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.319253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.319253][ T10] ___sys_sendmsg+0xee/0x170 [ 512.319253][ T10] __sys_sendmsg+0xcd/0x170 [ 512.319253][ T10] do_syscall_64+0xc6/0x1e0 [ 512.319253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.319253][ T10] [ 512.321774][ T10] ref_tracker: ns1eth4@ffff8880058815c0 has 1/3 users at [ 512.321774][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.321774][ T10] ipv6_find_idev+0x102/0x170 [ 512.321774][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.321774][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.321774][ T10] netlink_rcv_skb+0x130/0x360 [ 512.321774][ T10] netlink_unicast+0x449/0x710 [ 512.321774][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.321774][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.321774][ T10] ___sys_sendmsg+0xee/0x170 [ 512.321774][ T10] __sys_sendmsg+0xcd/0x170 [ 512.321774][ T10] do_syscall_64+0xc6/0x1e0 [ 512.321774][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.321774][ T10] [ 512.323603][ T10] ref_tracker: ns1eth4@ffff8880058815c0 has 1/3 users at [ 512.323603][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.323603][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.323603][ T10] ipv6_find_idev+0x102/0x170 [ 512.323603][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.323603][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.323603][ T10] netlink_rcv_skb+0x130/0x360 [ 512.323603][ T10] netlink_unicast+0x449/0x710 [ 512.323603][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.323603][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.323603][ T10] ___sys_sendmsg+0xee/0x170 [ 512.323603][ T10] __sys_sendmsg+0xcd/0x170 [ 512.323603][ T10] do_syscall_64+0xc6/0x1e0 [ 512.323603][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.323603][ T10] [ 512.325352][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 512.325631][ T10] ref_tracker: ns2eth4@ffff8880061a45c0 has 1/3 users at [ 512.325631][ T10] netdev_get_by_index+0x5e/0x80 [ 512.325631][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.325631][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.325631][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.325631][ T10] ipv6_add_addr+0x411/0x2000 [ 512.325631][ T10] inet6_addr_add+0x30e/0xa40 [ 512.325631][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.325631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.325631][ T10] netlink_rcv_skb+0x130/0x360 [ 512.325631][ T10] netlink_unicast+0x449/0x710 [ 512.325631][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.325631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.325631][ T10] ___sys_sendmsg+0xee/0x170 [ 512.325631][ T10] __sys_sendmsg+0xcd/0x170 [ 512.325631][ T10] do_syscall_64+0xc6/0x1e0 [ 512.325631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.325631][ T10] [ 512.327669][ T10] ref_tracker: ns2eth4@ffff8880061a45c0 has 1/3 users at [ 512.327669][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.327669][ T10] ipv6_find_idev+0x102/0x170 [ 512.327669][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.327669][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.327669][ T10] netlink_rcv_skb+0x130/0x360 [ 512.327669][ T10] netlink_unicast+0x449/0x710 [ 512.327669][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.327669][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.327669][ T10] ___sys_sendmsg+0xee/0x170 [ 512.327669][ T10] __sys_sendmsg+0xcd/0x170 [ 512.327669][ T10] do_syscall_64+0xc6/0x1e0 [ 512.327669][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.327669][ T10] [ 512.329262][ T10] ref_tracker: ns2eth4@ffff8880061a45c0 has 1/3 users at [ 512.329262][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.329262][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.329262][ T10] ipv6_find_idev+0x102/0x170 [ 512.329262][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.329262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.329262][ T10] netlink_rcv_skb+0x130/0x360 [ 512.329262][ T10] netlink_unicast+0x449/0x710 [ 512.329262][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.329262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.329262][ T10] ___sys_sendmsg+0xee/0x170 [ 512.329262][ T10] __sys_sendmsg+0xcd/0x170 [ 512.329262][ T10] do_syscall_64+0xc6/0x1e0 [ 512.329262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.329262][ T10] [ 512.331027][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 512.331311][ T10] ref_tracker: ns1eth3@ffff8880078f45c0 has 1/3 users at [ 512.331311][ T10] netdev_get_by_index+0x5e/0x80 [ 512.331311][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.331311][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.331311][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.331311][ T10] ipv6_add_addr+0x411/0x2000 [ 512.331311][ T10] inet6_addr_add+0x30e/0xa40 [ 512.331311][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.331311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.331311][ T10] netlink_rcv_skb+0x130/0x360 [ 512.331311][ T10] netlink_unicast+0x449/0x710 [ 512.331311][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.331311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.331311][ T10] ___sys_sendmsg+0xee/0x170 [ 512.331311][ T10] __sys_sendmsg+0xcd/0x170 [ 512.331311][ T10] do_syscall_64+0xc6/0x1e0 [ 512.331311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.331311][ T10] [ 512.333382][ T10] ref_tracker: ns1eth3@ffff8880078f45c0 has 1/3 users at [ 512.333382][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.333382][ T10] ipv6_find_idev+0x102/0x170 [ 512.333382][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.333382][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.333382][ T10] netlink_rcv_skb+0x130/0x360 [ 512.333382][ T10] netlink_unicast+0x449/0x710 [ 512.333382][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.333382][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.333382][ T10] ___sys_sendmsg+0xee/0x170 [ 512.333382][ T10] __sys_sendmsg+0xcd/0x170 [ 512.333382][ T10] do_syscall_64+0xc6/0x1e0 [ 512.333382][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.333382][ T10] [ 512.334972][ T10] ref_tracker: ns1eth3@ffff8880078f45c0 has 1/3 users at [ 512.334972][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.334972][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.334972][ T10] ipv6_find_idev+0x102/0x170 [ 512.334972][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.334972][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.334972][ T10] netlink_rcv_skb+0x130/0x360 [ 512.334972][ T10] netlink_unicast+0x449/0x710 [ 512.334972][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.334972][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.334972][ T10] ___sys_sendmsg+0xee/0x170 [ 512.334972][ T10] __sys_sendmsg+0xcd/0x170 [ 512.334972][ T10] do_syscall_64+0xc6/0x1e0 [ 512.334972][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.334972][ T10] [ 512.336751][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 512.337032][ T10] ref_tracker: ns2eth3@ffff888005b545c0 has 1/3 users at [ 512.337032][ T10] netdev_get_by_index+0x5e/0x80 [ 512.337032][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.337032][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.337032][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.337032][ T10] ipv6_add_addr+0x411/0x2000 [ 512.337032][ T10] inet6_addr_add+0x30e/0xa40 [ 512.337032][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.337032][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.337032][ T10] netlink_rcv_skb+0x130/0x360 [ 512.337032][ T10] netlink_unicast+0x449/0x710 [ 512.337032][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.337032][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.337032][ T10] ___sys_sendmsg+0xee/0x170 [ 512.337032][ T10] __sys_sendmsg+0xcd/0x170 [ 512.337032][ T10] do_syscall_64+0xc6/0x1e0 [ 512.337032][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.337032][ T10] [ 512.339107][ T10] ref_tracker: ns2eth3@ffff888005b545c0 has 1/3 users at [ 512.339107][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.339107][ T10] ipv6_find_idev+0x102/0x170 [ 512.339107][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.339107][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.339107][ T10] netlink_rcv_skb+0x130/0x360 [ 512.339107][ T10] netlink_unicast+0x449/0x710 [ 512.339107][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.339107][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.339107][ T10] ___sys_sendmsg+0xee/0x170 [ 512.339107][ T10] __sys_sendmsg+0xcd/0x170 [ 512.339107][ T10] do_syscall_64+0xc6/0x1e0 [ 512.339107][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.339107][ T10] [ 512.340715][ T10] ref_tracker: ns2eth3@ffff888005b545c0 has 1/3 users at [ 512.340715][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.340715][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.340715][ T10] ipv6_find_idev+0x102/0x170 [ 512.340715][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.340715][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.340715][ T10] netlink_rcv_skb+0x130/0x360 [ 512.340715][ T10] netlink_unicast+0x449/0x710 [ 512.340715][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.340715][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.340715][ T10] ___sys_sendmsg+0xee/0x170 [ 512.340715][ T10] __sys_sendmsg+0xcd/0x170 [ 512.340715][ T10] do_syscall_64+0xc6/0x1e0 [ 512.340715][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.340715][ T10] [ 512.342964][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 512.343630][ T10] ref_tracker: ns1eth2@ffff8880069995c0 has 1/3 users at [ 512.343630][ T10] netdev_get_by_index+0x5e/0x80 [ 512.343630][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.343630][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.343630][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.343630][ T10] ipv6_add_addr+0x411/0x2000 [ 512.343630][ T10] inet6_addr_add+0x30e/0xa40 [ 512.343630][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.343630][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.343630][ T10] netlink_rcv_skb+0x130/0x360 [ 512.343630][ T10] netlink_unicast+0x449/0x710 [ 512.343630][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.343630][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.343630][ T10] ___sys_sendmsg+0xee/0x170 [ 512.343630][ T10] __sys_sendmsg+0xcd/0x170 [ 512.343630][ T10] do_syscall_64+0xc6/0x1e0 [ 512.343630][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.343630][ T10] [ 512.345742][ T10] ref_tracker: ns1eth2@ffff8880069995c0 has 1/3 users at [ 512.345742][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.345742][ T10] ipv6_find_idev+0x102/0x170 [ 512.345742][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.345742][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.345742][ T10] netlink_rcv_skb+0x130/0x360 [ 512.345742][ T10] netlink_unicast+0x449/0x710 [ 512.345742][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.345742][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.345742][ T10] ___sys_sendmsg+0xee/0x170 [ 512.345742][ T10] __sys_sendmsg+0xcd/0x170 [ 512.345742][ T10] do_syscall_64+0xc6/0x1e0 [ 512.345742][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.345742][ T10] [ 512.347315][ T10] ref_tracker: ns1eth2@ffff8880069995c0 has 1/3 users at [ 512.347315][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.347315][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.347315][ T10] ipv6_find_idev+0x102/0x170 [ 512.347315][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.347315][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.347315][ T10] netlink_rcv_skb+0x130/0x360 [ 512.347315][ T10] netlink_unicast+0x449/0x710 [ 512.347315][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.347315][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.347315][ T10] ___sys_sendmsg+0xee/0x170 [ 512.347315][ T10] __sys_sendmsg+0xcd/0x170 [ 512.347315][ T10] do_syscall_64+0xc6/0x1e0 [ 512.347315][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.347315][ T10] [ 512.349041][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 512.349330][ T10] ref_tracker: ns2eth2@ffff88800699c5c0 has 1/3 users at [ 512.349330][ T10] netdev_get_by_index+0x5e/0x80 [ 512.349330][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.349330][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.349330][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.349330][ T10] ipv6_add_addr+0x411/0x2000 [ 512.349330][ T10] inet6_addr_add+0x30e/0xa40 [ 512.349330][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.349330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.349330][ T10] netlink_rcv_skb+0x130/0x360 [ 512.349330][ T10] netlink_unicast+0x449/0x710 [ 512.349330][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.349330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.349330][ T10] ___sys_sendmsg+0xee/0x170 [ 512.349330][ T10] __sys_sendmsg+0xcd/0x170 [ 512.349330][ T10] do_syscall_64+0xc6/0x1e0 [ 512.349330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.349330][ T10] [ 512.351357][ T10] ref_tracker: ns2eth2@ffff88800699c5c0 has 1/3 users at [ 512.351357][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.351357][ T10] ipv6_find_idev+0x102/0x170 [ 512.351357][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.351357][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.351357][ T10] netlink_rcv_skb+0x130/0x360 [ 512.351357][ T10] netlink_unicast+0x449/0x710 [ 512.351357][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.351357][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.351357][ T10] ___sys_sendmsg+0xee/0x170 [ 512.351357][ T10] __sys_sendmsg+0xcd/0x170 [ 512.351357][ T10] do_syscall_64+0xc6/0x1e0 [ 512.351357][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.351357][ T10] [ 512.352988][ T10] ref_tracker: ns2eth2@ffff88800699c5c0 has 1/3 users at [ 512.352988][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.352988][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.352988][ T10] ipv6_find_idev+0x102/0x170 [ 512.352988][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.352988][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.352988][ T10] netlink_rcv_skb+0x130/0x360 [ 512.352988][ T10] netlink_unicast+0x449/0x710 [ 512.352988][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.352988][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.352988][ T10] ___sys_sendmsg+0xee/0x170 [ 512.352988][ T10] __sys_sendmsg+0xcd/0x170 [ 512.352988][ T10] do_syscall_64+0xc6/0x1e0 [ 512.352988][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.352988][ T10] [ 512.354923][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 512.355253][ T10] ref_tracker: ns1eth1@ffff8880069545c0 has 1/3 users at [ 512.355253][ T10] netdev_get_by_index+0x5e/0x80 [ 512.355253][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.355253][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.355253][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.355253][ T10] ipv6_add_addr+0x411/0x2000 [ 512.355253][ T10] inet6_addr_add+0x30e/0xa40 [ 512.355253][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.355253][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.355253][ T10] netlink_rcv_skb+0x130/0x360 [ 512.355253][ T10] netlink_unicast+0x449/0x710 [ 512.355253][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.355253][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.355253][ T10] ___sys_sendmsg+0xee/0x170 [ 512.355253][ T10] __sys_sendmsg+0xcd/0x170 [ 512.355253][ T10] do_syscall_64+0xc6/0x1e0 [ 512.355253][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.355253][ T10] [ 512.357468][ T10] ref_tracker: ns1eth1@ffff8880069545c0 has 1/3 users at [ 512.357468][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.357468][ T10] ipv6_find_idev+0x102/0x170 [ 512.357468][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.357468][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.357468][ T10] netlink_rcv_skb+0x130/0x360 [ 512.357468][ T10] netlink_unicast+0x449/0x710 [ 512.357468][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.357468][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.357468][ T10] ___sys_sendmsg+0xee/0x170 [ 512.357468][ T10] __sys_sendmsg+0xcd/0x170 [ 512.357468][ T10] do_syscall_64+0xc6/0x1e0 [ 512.357468][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.357468][ T10] [ 512.359212][ T10] ref_tracker: ns1eth1@ffff8880069545c0 has 1/3 users at [ 512.359212][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.359212][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.359212][ T10] ipv6_find_idev+0x102/0x170 [ 512.359212][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.359212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.359212][ T10] netlink_rcv_skb+0x130/0x360 [ 512.359212][ T10] netlink_unicast+0x449/0x710 [ 512.359212][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.359212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.359212][ T10] ___sys_sendmsg+0xee/0x170 [ 512.359212][ T10] __sys_sendmsg+0xcd/0x170 [ 512.359212][ T10] do_syscall_64+0xc6/0x1e0 [ 512.359212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.359212][ T10] [ 512.361269][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 512.361585][ T10] ref_tracker: ns2eth1@ffff8880059bc5c0 has 1/3 users at [ 512.361585][ T10] netdev_get_by_index+0x5e/0x80 [ 512.361585][ T10] fib6_nh_init+0x3d8/0x15b0 [ 512.361585][ T10] ip6_route_info_create+0xf18/0x17d0 [ 512.361585][ T10] addrconf_f6i_alloc+0x244/0x410 [ 512.361585][ T10] ipv6_add_addr+0x411/0x2000 [ 512.361585][ T10] inet6_addr_add+0x30e/0xa40 [ 512.361585][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 512.361585][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.361585][ T10] netlink_rcv_skb+0x130/0x360 [ 512.361585][ T10] netlink_unicast+0x449/0x710 [ 512.361585][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.361585][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.361585][ T10] ___sys_sendmsg+0xee/0x170 [ 512.361585][ T10] __sys_sendmsg+0xcd/0x170 [ 512.361585][ T10] do_syscall_64+0xc6/0x1e0 [ 512.361585][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.361585][ T10] [ 512.363783][ T10] ref_tracker: ns2eth1@ffff8880059bc5c0 has 1/3 users at [ 512.363783][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 512.363783][ T10] ipv6_find_idev+0x102/0x170 [ 512.363783][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.363783][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.363783][ T10] netlink_rcv_skb+0x130/0x360 [ 512.363783][ T10] netlink_unicast+0x449/0x710 [ 512.363783][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.363783][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.363783][ T10] ___sys_sendmsg+0xee/0x170 [ 512.363783][ T10] __sys_sendmsg+0xcd/0x170 [ 512.363783][ T10] do_syscall_64+0xc6/0x1e0 [ 512.363783][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.363783][ T10] [ 512.365536][ T10] ref_tracker: ns2eth1@ffff8880059bc5c0 has 1/3 users at [ 512.365536][ T10] neigh_parms_alloc+0x1e5/0x510 [ 512.365536][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 512.365536][ T10] ipv6_find_idev+0x102/0x170 [ 512.365536][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 512.365536][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 512.365536][ T10] netlink_rcv_skb+0x130/0x360 [ 512.365536][ T10] netlink_unicast+0x449/0x710 [ 512.365536][ T10] netlink_sendmsg+0x723/0xbe0 [ 512.365536][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 512.365536][ T10] ___sys_sendmsg+0xee/0x170 [ 512.365536][ T10] __sys_sendmsg+0xcd/0x170 [ 512.365536][ T10] do_syscall_64+0xc6/0x1e0 [ 512.365536][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 512.365536][ T10]