[ 400.614688][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 400.615164][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 400.615164][ T10] netdev_get_by_index+0x5e/0x80 [ 400.615164][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.615164][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.615164][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.615164][ T10] ipv6_add_addr+0x411/0x2000 [ 400.615164][ T10] inet6_addr_add+0x30e/0xa40 [ 400.615164][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.615164][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.615164][ T10] netlink_rcv_skb+0x130/0x360 [ 400.615164][ T10] netlink_unicast+0x449/0x710 [ 400.615164][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.615164][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.615164][ T10] ___sys_sendmsg+0xee/0x170 [ 400.615164][ T10] __sys_sendmsg+0xcd/0x170 [ 400.615164][ T10] do_syscall_64+0xc6/0x1e0 [ 400.615164][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.615164][ T10] [ 400.617510][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 400.617510][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.617510][ T10] ipv6_find_idev+0x102/0x170 [ 400.617510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.617510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.617510][ T10] netlink_rcv_skb+0x130/0x360 [ 400.617510][ T10] netlink_unicast+0x449/0x710 [ 400.617510][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.617510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.617510][ T10] ___sys_sendmsg+0xee/0x170 [ 400.617510][ T10] __sys_sendmsg+0xcd/0x170 [ 400.617510][ T10] do_syscall_64+0xc6/0x1e0 [ 400.617510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.617510][ T10] [ 400.619056][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 400.619056][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.619056][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.619056][ T10] ipv6_find_idev+0x102/0x170 [ 400.619056][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.619056][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.619056][ T10] netlink_rcv_skb+0x130/0x360 [ 400.619056][ T10] netlink_unicast+0x449/0x710 [ 400.619056][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.619056][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.619056][ T10] ___sys_sendmsg+0xee/0x170 [ 400.619056][ T10] __sys_sendmsg+0xcd/0x170 [ 400.619056][ T10] do_syscall_64+0xc6/0x1e0 [ 400.619056][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.619056][ T10] [ 400.620898][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 400.621191][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 400.621191][ T10] netdev_get_by_index+0x5e/0x80 [ 400.621191][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.621191][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.621191][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.621191][ T10] ipv6_add_addr+0x411/0x2000 [ 400.621191][ T10] inet6_addr_add+0x30e/0xa40 [ 400.621191][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.621191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.621191][ T10] netlink_rcv_skb+0x130/0x360 [ 400.621191][ T10] netlink_unicast+0x449/0x710 [ 400.621191][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.621191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.621191][ T10] ___sys_sendmsg+0xee/0x170 [ 400.621191][ T10] __sys_sendmsg+0xcd/0x170 [ 400.621191][ T10] do_syscall_64+0xc6/0x1e0 [ 400.621191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.621191][ T10] [ 400.623186][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 400.623186][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.623186][ T10] ipv6_find_idev+0x102/0x170 [ 400.623186][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.623186][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.623186][ T10] netlink_rcv_skb+0x130/0x360 [ 400.623186][ T10] netlink_unicast+0x449/0x710 [ 400.623186][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.623186][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.623186][ T10] ___sys_sendmsg+0xee/0x170 [ 400.623186][ T10] __sys_sendmsg+0xcd/0x170 [ 400.623186][ T10] do_syscall_64+0xc6/0x1e0 [ 400.623186][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.623186][ T10] [ 400.624741][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 400.624741][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.624741][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.624741][ T10] ipv6_find_idev+0x102/0x170 [ 400.624741][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.624741][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.624741][ T10] netlink_rcv_skb+0x130/0x360 [ 400.624741][ T10] netlink_unicast+0x449/0x710 [ 400.624741][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.624741][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.624741][ T10] ___sys_sendmsg+0xee/0x170 [ 400.624741][ T10] __sys_sendmsg+0xcd/0x170 [ 400.624741][ T10] do_syscall_64+0xc6/0x1e0 [ 400.624741][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.624741][ T10] [ 400.626442][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 400.626881][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 400.626881][ T10] netdev_get_by_index+0x5e/0x80 [ 400.626881][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.626881][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.626881][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.626881][ T10] ipv6_add_addr+0x411/0x2000 [ 400.626881][ T10] inet6_addr_add+0x30e/0xa40 [ 400.626881][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.626881][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.626881][ T10] netlink_rcv_skb+0x130/0x360 [ 400.626881][ T10] netlink_unicast+0x449/0x710 [ 400.626881][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.626881][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.626881][ T10] ___sys_sendmsg+0xee/0x170 [ 400.626881][ T10] __sys_sendmsg+0xcd/0x170 [ 400.626881][ T10] do_syscall_64+0xc6/0x1e0 [ 400.626881][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.626881][ T10] [ 400.628906][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 400.628906][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.628906][ T10] ipv6_find_idev+0x102/0x170 [ 400.628906][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.628906][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.628906][ T10] netlink_rcv_skb+0x130/0x360 [ 400.628906][ T10] netlink_unicast+0x449/0x710 [ 400.628906][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.628906][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.628906][ T10] ___sys_sendmsg+0xee/0x170 [ 400.628906][ T10] __sys_sendmsg+0xcd/0x170 [ 400.628906][ T10] do_syscall_64+0xc6/0x1e0 [ 400.628906][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.628906][ T10] [ 400.630466][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 400.630466][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.630466][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.630466][ T10] ipv6_find_idev+0x102/0x170 [ 400.630466][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.630466][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.630466][ T10] netlink_rcv_skb+0x130/0x360 [ 400.630466][ T10] netlink_unicast+0x449/0x710 [ 400.630466][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.630466][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.630466][ T10] ___sys_sendmsg+0xee/0x170 [ 400.630466][ T10] __sys_sendmsg+0xcd/0x170 [ 400.630466][ T10] do_syscall_64+0xc6/0x1e0 [ 400.630466][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.630466][ T10] [ 400.632179][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 400.632454][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 400.632454][ T10] netdev_get_by_index+0x5e/0x80 [ 400.632454][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.632454][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.632454][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.632454][ T10] ipv6_add_addr+0x411/0x2000 [ 400.632454][ T10] inet6_addr_add+0x30e/0xa40 [ 400.632454][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.632454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.632454][ T10] netlink_rcv_skb+0x130/0x360 [ 400.632454][ T10] netlink_unicast+0x449/0x710 [ 400.632454][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.632454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.632454][ T10] ___sys_sendmsg+0xee/0x170 [ 400.632454][ T10] __sys_sendmsg+0xcd/0x170 [ 400.632454][ T10] do_syscall_64+0xc6/0x1e0 [ 400.632454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.632454][ T10] [ 400.634756][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 400.634756][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.634756][ T10] ipv6_find_idev+0x102/0x170 [ 400.634756][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.634756][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.634756][ T10] netlink_rcv_skb+0x130/0x360 [ 400.634756][ T10] netlink_unicast+0x449/0x710 [ 400.634756][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.634756][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.634756][ T10] ___sys_sendmsg+0xee/0x170 [ 400.634756][ T10] __sys_sendmsg+0xcd/0x170 [ 400.634756][ T10] do_syscall_64+0xc6/0x1e0 [ 400.634756][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.634756][ T10] [ 400.636440][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 400.636440][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.636440][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.636440][ T10] ipv6_find_idev+0x102/0x170 [ 400.636440][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.636440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.636440][ T10] netlink_rcv_skb+0x130/0x360 [ 400.636440][ T10] netlink_unicast+0x449/0x710 [ 400.636440][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.636440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.636440][ T10] ___sys_sendmsg+0xee/0x170 [ 400.636440][ T10] __sys_sendmsg+0xcd/0x170 [ 400.636440][ T10] do_syscall_64+0xc6/0x1e0 [ 400.636440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.636440][ T10] [ 400.638332][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 400.638706][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 400.638706][ T10] netdev_get_by_index+0x5e/0x80 [ 400.638706][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.638706][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.638706][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.638706][ T10] ipv6_add_addr+0x411/0x2000 [ 400.638706][ T10] inet6_addr_add+0x30e/0xa40 [ 400.638706][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.638706][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.638706][ T10] netlink_rcv_skb+0x130/0x360 [ 400.638706][ T10] netlink_unicast+0x449/0x710 [ 400.638706][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.638706][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.638706][ T10] ___sys_sendmsg+0xee/0x170 [ 400.638706][ T10] __sys_sendmsg+0xcd/0x170 [ 400.638706][ T10] do_syscall_64+0xc6/0x1e0 [ 400.638706][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.638706][ T10] [ 400.640889][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 400.640889][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.640889][ T10] ipv6_find_idev+0x102/0x170 [ 400.640889][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.640889][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.640889][ T10] netlink_rcv_skb+0x130/0x360 [ 400.640889][ T10] netlink_unicast+0x449/0x710 [ 400.640889][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.640889][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.640889][ T10] ___sys_sendmsg+0xee/0x170 [ 400.640889][ T10] __sys_sendmsg+0xcd/0x170 [ 400.640889][ T10] do_syscall_64+0xc6/0x1e0 [ 400.640889][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.640889][ T10] [ 400.642631][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 400.642631][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.642631][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.642631][ T10] ipv6_find_idev+0x102/0x170 [ 400.642631][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.642631][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.642631][ T10] netlink_rcv_skb+0x130/0x360 [ 400.642631][ T10] netlink_unicast+0x449/0x710 [ 400.642631][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.642631][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.642631][ T10] ___sys_sendmsg+0xee/0x170 [ 400.642631][ T10] __sys_sendmsg+0xcd/0x170 [ 400.642631][ T10] do_syscall_64+0xc6/0x1e0 [ 400.642631][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.642631][ T10] [ 400.644720][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 400.645001][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 400.645001][ T10] netdev_get_by_index+0x5e/0x80 [ 400.645001][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.645001][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.645001][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.645001][ T10] ipv6_add_addr+0x411/0x2000 [ 400.645001][ T10] inet6_addr_add+0x30e/0xa40 [ 400.645001][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.645001][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.645001][ T10] netlink_rcv_skb+0x130/0x360 [ 400.645001][ T10] netlink_unicast+0x449/0x710 [ 400.645001][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.645001][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.645001][ T10] ___sys_sendmsg+0xee/0x170 [ 400.645001][ T10] __sys_sendmsg+0xcd/0x170 [ 400.645001][ T10] do_syscall_64+0xc6/0x1e0 [ 400.645001][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.645001][ T10] [ 400.647358][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 400.647358][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.647358][ T10] ipv6_find_idev+0x102/0x170 [ 400.647358][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.647358][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.647358][ T10] netlink_rcv_skb+0x130/0x360 [ 400.647358][ T10] netlink_unicast+0x449/0x710 [ 400.647358][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.647358][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.647358][ T10] ___sys_sendmsg+0xee/0x170 [ 400.647358][ T10] __sys_sendmsg+0xcd/0x170 [ 400.647358][ T10] do_syscall_64+0xc6/0x1e0 [ 400.647358][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.647358][ T10] [ 400.649018][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 400.649018][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.649018][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.649018][ T10] ipv6_find_idev+0x102/0x170 [ 400.649018][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.649018][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.649018][ T10] netlink_rcv_skb+0x130/0x360 [ 400.649018][ T10] netlink_unicast+0x449/0x710 [ 400.649018][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.649018][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.649018][ T10] ___sys_sendmsg+0xee/0x170 [ 400.649018][ T10] __sys_sendmsg+0xcd/0x170 [ 400.649018][ T10] do_syscall_64+0xc6/0x1e0 [ 400.649018][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.649018][ T10] [ 400.651336][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 400.652118][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 400.652118][ T10] netdev_get_by_index+0x5e/0x80 [ 400.652118][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.652118][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.652118][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.652118][ T10] ipv6_add_addr+0x411/0x2000 [ 400.652118][ T10] inet6_addr_add+0x30e/0xa40 [ 400.652118][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.652118][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.652118][ T10] netlink_rcv_skb+0x130/0x360 [ 400.652118][ T10] netlink_unicast+0x449/0x710 [ 400.652118][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.652118][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.652118][ T10] ___sys_sendmsg+0xee/0x170 [ 400.652118][ T10] __sys_sendmsg+0xcd/0x170 [ 400.652118][ T10] do_syscall_64+0xc6/0x1e0 [ 400.652118][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.652118][ T10] [ 400.654209][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 400.654209][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.654209][ T10] ipv6_find_idev+0x102/0x170 [ 400.654209][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.654209][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.654209][ T10] netlink_rcv_skb+0x130/0x360 [ 400.654209][ T10] netlink_unicast+0x449/0x710 [ 400.654209][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.654209][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.654209][ T10] ___sys_sendmsg+0xee/0x170 [ 400.654209][ T10] __sys_sendmsg+0xcd/0x170 [ 400.654209][ T10] do_syscall_64+0xc6/0x1e0 [ 400.654209][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.654209][ T10] [ 400.655803][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 400.655803][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.655803][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.655803][ T10] ipv6_find_idev+0x102/0x170 [ 400.655803][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.655803][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.655803][ T10] netlink_rcv_skb+0x130/0x360 [ 400.655803][ T10] netlink_unicast+0x449/0x710 [ 400.655803][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.655803][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.655803][ T10] ___sys_sendmsg+0xee/0x170 [ 400.655803][ T10] __sys_sendmsg+0xcd/0x170 [ 400.655803][ T10] do_syscall_64+0xc6/0x1e0 [ 400.655803][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.655803][ T10] [ 400.657614][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 400.657954][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 400.657954][ T10] netdev_get_by_index+0x5e/0x80 [ 400.657954][ T10] fib6_nh_init+0x3d8/0x15b0 [ 400.657954][ T10] ip6_route_info_create+0xf18/0x17d0 [ 400.657954][ T10] addrconf_f6i_alloc+0x244/0x410 [ 400.657954][ T10] ipv6_add_addr+0x411/0x2000 [ 400.657954][ T10] inet6_addr_add+0x30e/0xa40 [ 400.657954][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 400.657954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.657954][ T10] netlink_rcv_skb+0x130/0x360 [ 400.657954][ T10] netlink_unicast+0x449/0x710 [ 400.657954][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.657954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.657954][ T10] ___sys_sendmsg+0xee/0x170 [ 400.657954][ T10] __sys_sendmsg+0xcd/0x170 [ 400.657954][ T10] do_syscall_64+0xc6/0x1e0 [ 400.657954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.657954][ T10] [ 400.660217][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 400.660217][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 400.660217][ T10] ipv6_find_idev+0x102/0x170 [ 400.660217][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.660217][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.660217][ T10] netlink_rcv_skb+0x130/0x360 [ 400.660217][ T10] netlink_unicast+0x449/0x710 [ 400.660217][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.660217][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.660217][ T10] ___sys_sendmsg+0xee/0x170 [ 400.660217][ T10] __sys_sendmsg+0xcd/0x170 [ 400.660217][ T10] do_syscall_64+0xc6/0x1e0 [ 400.660217][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.660217][ T10] [ 400.662140][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 400.662140][ T10] neigh_parms_alloc+0x1e5/0x510 [ 400.662140][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 400.662140][ T10] ipv6_find_idev+0x102/0x170 [ 400.662140][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 400.662140][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 400.662140][ T10] netlink_rcv_skb+0x130/0x360 [ 400.662140][ T10] netlink_unicast+0x449/0x710 [ 400.662140][ T10] netlink_sendmsg+0x723/0xbe0 [ 400.662140][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 400.662140][ T10] ___sys_sendmsg+0xee/0x170 [ 400.662140][ T10] __sys_sendmsg+0xcd/0x170 [ 400.662140][ T10] do_syscall_64+0xc6/0x1e0 [ 400.662140][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 400.662140][ T10] [ 410.758712][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 410.759260][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 410.759260][ T10] netdev_get_by_index+0x5e/0x80 [ 410.759260][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.759260][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.759260][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.759260][ T10] ipv6_add_addr+0x411/0x2000 [ 410.759260][ T10] inet6_addr_add+0x30e/0xa40 [ 410.759260][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.759260][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.759260][ T10] netlink_rcv_skb+0x130/0x360 [ 410.759260][ T10] netlink_unicast+0x449/0x710 [ 410.759260][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.759260][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.759260][ T10] ___sys_sendmsg+0xee/0x170 [ 410.759260][ T10] __sys_sendmsg+0xcd/0x170 [ 410.759260][ T10] do_syscall_64+0xc6/0x1e0 [ 410.759260][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.759260][ T10] [ 410.761626][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 410.761626][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.761626][ T10] ipv6_find_idev+0x102/0x170 [ 410.761626][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.761626][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.761626][ T10] netlink_rcv_skb+0x130/0x360 [ 410.761626][ T10] netlink_unicast+0x449/0x710 [ 410.761626][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.761626][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.761626][ T10] ___sys_sendmsg+0xee/0x170 [ 410.761626][ T10] __sys_sendmsg+0xcd/0x170 [ 410.761626][ T10] do_syscall_64+0xc6/0x1e0 [ 410.761626][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.761626][ T10] [ 410.763421][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 410.763421][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.763421][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.763421][ T10] ipv6_find_idev+0x102/0x170 [ 410.763421][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.763421][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.763421][ T10] netlink_rcv_skb+0x130/0x360 [ 410.763421][ T10] netlink_unicast+0x449/0x710 [ 410.763421][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.763421][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.763421][ T10] ___sys_sendmsg+0xee/0x170 [ 410.763421][ T10] __sys_sendmsg+0xcd/0x170 [ 410.763421][ T10] do_syscall_64+0xc6/0x1e0 [ 410.763421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.763421][ T10] [ 410.765448][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 410.765769][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 410.765769][ T10] netdev_get_by_index+0x5e/0x80 [ 410.765769][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.765769][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.765769][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.765769][ T10] ipv6_add_addr+0x411/0x2000 [ 410.765769][ T10] inet6_addr_add+0x30e/0xa40 [ 410.765769][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.765769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.765769][ T10] netlink_rcv_skb+0x130/0x360 [ 410.765769][ T10] netlink_unicast+0x449/0x710 [ 410.765769][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.765769][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.765769][ T10] ___sys_sendmsg+0xee/0x170 [ 410.765769][ T10] __sys_sendmsg+0xcd/0x170 [ 410.765769][ T10] do_syscall_64+0xc6/0x1e0 [ 410.765769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.765769][ T10] [ 410.768067][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 410.768067][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.768067][ T10] ipv6_find_idev+0x102/0x170 [ 410.768067][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.768067][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.768067][ T10] netlink_rcv_skb+0x130/0x360 [ 410.768067][ T10] netlink_unicast+0x449/0x710 [ 410.768067][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.768067][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.768067][ T10] ___sys_sendmsg+0xee/0x170 [ 410.768067][ T10] __sys_sendmsg+0xcd/0x170 [ 410.768067][ T10] do_syscall_64+0xc6/0x1e0 [ 410.768067][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.768067][ T10] [ 410.769837][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 410.769837][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.769837][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.769837][ T10] ipv6_find_idev+0x102/0x170 [ 410.769837][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.769837][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.769837][ T10] netlink_rcv_skb+0x130/0x360 [ 410.769837][ T10] netlink_unicast+0x449/0x710 [ 410.769837][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.769837][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.769837][ T10] ___sys_sendmsg+0xee/0x170 [ 410.769837][ T10] __sys_sendmsg+0xcd/0x170 [ 410.769837][ T10] do_syscall_64+0xc6/0x1e0 [ 410.769837][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.769837][ T10] [ 410.771782][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 410.772085][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 410.772085][ T10] netdev_get_by_index+0x5e/0x80 [ 410.772085][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.772085][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.772085][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.772085][ T10] ipv6_add_addr+0x411/0x2000 [ 410.772085][ T10] inet6_addr_add+0x30e/0xa40 [ 410.772085][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.772085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.772085][ T10] netlink_rcv_skb+0x130/0x360 [ 410.772085][ T10] netlink_unicast+0x449/0x710 [ 410.772085][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.772085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.772085][ T10] ___sys_sendmsg+0xee/0x170 [ 410.772085][ T10] __sys_sendmsg+0xcd/0x170 [ 410.772085][ T10] do_syscall_64+0xc6/0x1e0 [ 410.772085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.772085][ T10] [ 410.774407][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 410.774407][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.774407][ T10] ipv6_find_idev+0x102/0x170 [ 410.774407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.774407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.774407][ T10] netlink_rcv_skb+0x130/0x360 [ 410.774407][ T10] netlink_unicast+0x449/0x710 [ 410.774407][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.774407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.774407][ T10] ___sys_sendmsg+0xee/0x170 [ 410.774407][ T10] __sys_sendmsg+0xcd/0x170 [ 410.774407][ T10] do_syscall_64+0xc6/0x1e0 [ 410.774407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.774407][ T10] [ 410.776189][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 410.776189][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.776189][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.776189][ T10] ipv6_find_idev+0x102/0x170 [ 410.776189][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.776189][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.776189][ T10] netlink_rcv_skb+0x130/0x360 [ 410.776189][ T10] netlink_unicast+0x449/0x710 [ 410.776189][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.776189][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.776189][ T10] ___sys_sendmsg+0xee/0x170 [ 410.776189][ T10] __sys_sendmsg+0xcd/0x170 [ 410.776189][ T10] do_syscall_64+0xc6/0x1e0 [ 410.776189][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.776189][ T10] [ 410.778134][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 410.778440][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 410.778440][ T10] netdev_get_by_index+0x5e/0x80 [ 410.778440][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.778440][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.778440][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.778440][ T10] ipv6_add_addr+0x411/0x2000 [ 410.778440][ T10] inet6_addr_add+0x30e/0xa40 [ 410.778440][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.778440][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.778440][ T10] netlink_rcv_skb+0x130/0x360 [ 410.778440][ T10] netlink_unicast+0x449/0x710 [ 410.778440][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.778440][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.778440][ T10] ___sys_sendmsg+0xee/0x170 [ 410.778440][ T10] __sys_sendmsg+0xcd/0x170 [ 410.778440][ T10] do_syscall_64+0xc6/0x1e0 [ 410.778440][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.778440][ T10] [ 410.780758][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 410.780758][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.780758][ T10] ipv6_find_idev+0x102/0x170 [ 410.780758][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.780758][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.780758][ T10] netlink_rcv_skb+0x130/0x360 [ 410.780758][ T10] netlink_unicast+0x449/0x710 [ 410.780758][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.780758][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.780758][ T10] ___sys_sendmsg+0xee/0x170 [ 410.780758][ T10] __sys_sendmsg+0xcd/0x170 [ 410.780758][ T10] do_syscall_64+0xc6/0x1e0 [ 410.780758][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.780758][ T10] [ 410.782521][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 410.782521][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.782521][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.782521][ T10] ipv6_find_idev+0x102/0x170 [ 410.782521][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.782521][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.782521][ T10] netlink_rcv_skb+0x130/0x360 [ 410.782521][ T10] netlink_unicast+0x449/0x710 [ 410.782521][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.782521][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.782521][ T10] ___sys_sendmsg+0xee/0x170 [ 410.782521][ T10] __sys_sendmsg+0xcd/0x170 [ 410.782521][ T10] do_syscall_64+0xc6/0x1e0 [ 410.782521][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.782521][ T10] [ 410.784915][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 410.785601][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 410.785601][ T10] netdev_get_by_index+0x5e/0x80 [ 410.785601][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.785601][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.785601][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.785601][ T10] ipv6_add_addr+0x411/0x2000 [ 410.785601][ T10] inet6_addr_add+0x30e/0xa40 [ 410.785601][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.785601][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.785601][ T10] netlink_rcv_skb+0x130/0x360 [ 410.785601][ T10] netlink_unicast+0x449/0x710 [ 410.785601][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.785601][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.785601][ T10] ___sys_sendmsg+0xee/0x170 [ 410.785601][ T10] __sys_sendmsg+0xcd/0x170 [ 410.785601][ T10] do_syscall_64+0xc6/0x1e0 [ 410.785601][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.785601][ T10] [ 410.787896][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 410.787896][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.787896][ T10] ipv6_find_idev+0x102/0x170 [ 410.787896][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.787896][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.787896][ T10] netlink_rcv_skb+0x130/0x360 [ 410.787896][ T10] netlink_unicast+0x449/0x710 [ 410.787896][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.787896][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.787896][ T10] ___sys_sendmsg+0xee/0x170 [ 410.787896][ T10] __sys_sendmsg+0xcd/0x170 [ 410.787896][ T10] do_syscall_64+0xc6/0x1e0 [ 410.787896][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.787896][ T10] [ 410.789680][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 410.789680][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.789680][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.789680][ T10] ipv6_find_idev+0x102/0x170 [ 410.789680][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.789680][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.789680][ T10] netlink_rcv_skb+0x130/0x360 [ 410.789680][ T10] netlink_unicast+0x449/0x710 [ 410.789680][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.789680][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.789680][ T10] ___sys_sendmsg+0xee/0x170 [ 410.789680][ T10] __sys_sendmsg+0xcd/0x170 [ 410.789680][ T10] do_syscall_64+0xc6/0x1e0 [ 410.789680][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.789680][ T10] [ 410.791584][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 410.791943][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 410.791943][ T10] netdev_get_by_index+0x5e/0x80 [ 410.791943][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.791943][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.791943][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.791943][ T10] ipv6_add_addr+0x411/0x2000 [ 410.791943][ T10] inet6_addr_add+0x30e/0xa40 [ 410.791943][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.791943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.791943][ T10] netlink_rcv_skb+0x130/0x360 [ 410.791943][ T10] netlink_unicast+0x449/0x710 [ 410.791943][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.791943][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.791943][ T10] ___sys_sendmsg+0xee/0x170 [ 410.791943][ T10] __sys_sendmsg+0xcd/0x170 [ 410.791943][ T10] do_syscall_64+0xc6/0x1e0 [ 410.791943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.791943][ T10] [ 410.794212][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 410.794212][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.794212][ T10] ipv6_find_idev+0x102/0x170 [ 410.794212][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.794212][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.794212][ T10] netlink_rcv_skb+0x130/0x360 [ 410.794212][ T10] netlink_unicast+0x449/0x710 [ 410.794212][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.794212][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.794212][ T10] ___sys_sendmsg+0xee/0x170 [ 410.794212][ T10] __sys_sendmsg+0xcd/0x170 [ 410.794212][ T10] do_syscall_64+0xc6/0x1e0 [ 410.794212][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.794212][ T10] [ 410.796037][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 410.796037][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.796037][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.796037][ T10] ipv6_find_idev+0x102/0x170 [ 410.796037][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.796037][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.796037][ T10] netlink_rcv_skb+0x130/0x360 [ 410.796037][ T10] netlink_unicast+0x449/0x710 [ 410.796037][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.796037][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.796037][ T10] ___sys_sendmsg+0xee/0x170 [ 410.796037][ T10] __sys_sendmsg+0xcd/0x170 [ 410.796037][ T10] do_syscall_64+0xc6/0x1e0 [ 410.796037][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.796037][ T10] [ 410.798136][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 410.798508][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 410.798508][ T10] netdev_get_by_index+0x5e/0x80 [ 410.798508][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.798508][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.798508][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.798508][ T10] ipv6_add_addr+0x411/0x2000 [ 410.798508][ T10] inet6_addr_add+0x30e/0xa40 [ 410.798508][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.798508][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.798508][ T10] netlink_rcv_skb+0x130/0x360 [ 410.798508][ T10] netlink_unicast+0x449/0x710 [ 410.798508][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.798508][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.798508][ T10] ___sys_sendmsg+0xee/0x170 [ 410.798508][ T10] __sys_sendmsg+0xcd/0x170 [ 410.798508][ T10] do_syscall_64+0xc6/0x1e0 [ 410.798508][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.798508][ T10] [ 410.800830][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 410.800830][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.800830][ T10] ipv6_find_idev+0x102/0x170 [ 410.800830][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.800830][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.800830][ T10] netlink_rcv_skb+0x130/0x360 [ 410.800830][ T10] netlink_unicast+0x449/0x710 [ 410.800830][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.800830][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.800830][ T10] ___sys_sendmsg+0xee/0x170 [ 410.800830][ T10] __sys_sendmsg+0xcd/0x170 [ 410.800830][ T10] do_syscall_64+0xc6/0x1e0 [ 410.800830][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.800830][ T10] [ 410.802717][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 410.802717][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.802717][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.802717][ T10] ipv6_find_idev+0x102/0x170 [ 410.802717][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.802717][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.802717][ T10] netlink_rcv_skb+0x130/0x360 [ 410.802717][ T10] netlink_unicast+0x449/0x710 [ 410.802717][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.802717][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.802717][ T10] ___sys_sendmsg+0xee/0x170 [ 410.802717][ T10] __sys_sendmsg+0xcd/0x170 [ 410.802717][ T10] do_syscall_64+0xc6/0x1e0 [ 410.802717][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.802717][ T10] [ 410.804744][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 410.805096][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 410.805096][ T10] netdev_get_by_index+0x5e/0x80 [ 410.805096][ T10] fib6_nh_init+0x3d8/0x15b0 [ 410.805096][ T10] ip6_route_info_create+0xf18/0x17d0 [ 410.805096][ T10] addrconf_f6i_alloc+0x244/0x410 [ 410.805096][ T10] ipv6_add_addr+0x411/0x2000 [ 410.805096][ T10] inet6_addr_add+0x30e/0xa40 [ 410.805096][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 410.805096][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.805096][ T10] netlink_rcv_skb+0x130/0x360 [ 410.805096][ T10] netlink_unicast+0x449/0x710 [ 410.805096][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.805096][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.805096][ T10] ___sys_sendmsg+0xee/0x170 [ 410.805096][ T10] __sys_sendmsg+0xcd/0x170 [ 410.805096][ T10] do_syscall_64+0xc6/0x1e0 [ 410.805096][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.805096][ T10] [ 410.807510][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 410.807510][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 410.807510][ T10] ipv6_find_idev+0x102/0x170 [ 410.807510][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.807510][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.807510][ T10] netlink_rcv_skb+0x130/0x360 [ 410.807510][ T10] netlink_unicast+0x449/0x710 [ 410.807510][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.807510][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.807510][ T10] ___sys_sendmsg+0xee/0x170 [ 410.807510][ T10] __sys_sendmsg+0xcd/0x170 [ 410.807510][ T10] do_syscall_64+0xc6/0x1e0 [ 410.807510][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.807510][ T10] [ 410.809300][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 410.809300][ T10] neigh_parms_alloc+0x1e5/0x510 [ 410.809300][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 410.809300][ T10] ipv6_find_idev+0x102/0x170 [ 410.809300][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 410.809300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 410.809300][ T10] netlink_rcv_skb+0x130/0x360 [ 410.809300][ T10] netlink_unicast+0x449/0x710 [ 410.809300][ T10] netlink_sendmsg+0x723/0xbe0 [ 410.809300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 410.809300][ T10] ___sys_sendmsg+0xee/0x170 [ 410.809300][ T10] __sys_sendmsg+0xcd/0x170 [ 410.809300][ T10] do_syscall_64+0xc6/0x1e0 [ 410.809300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 410.809300][ T10] [ 420.830701][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 420.831163][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 420.831163][ T10] netdev_get_by_index+0x5e/0x80 [ 420.831163][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.831163][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.831163][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.831163][ T10] ipv6_add_addr+0x411/0x2000 [ 420.831163][ T10] inet6_addr_add+0x30e/0xa40 [ 420.831163][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.831163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.831163][ T10] netlink_rcv_skb+0x130/0x360 [ 420.831163][ T10] netlink_unicast+0x449/0x710 [ 420.831163][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.831163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.831163][ T10] ___sys_sendmsg+0xee/0x170 [ 420.831163][ T10] __sys_sendmsg+0xcd/0x170 [ 420.831163][ T10] do_syscall_64+0xc6/0x1e0 [ 420.831163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.831163][ T10] [ 420.833514][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 420.833514][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.833514][ T10] ipv6_find_idev+0x102/0x170 [ 420.833514][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.833514][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.833514][ T10] netlink_rcv_skb+0x130/0x360 [ 420.833514][ T10] netlink_unicast+0x449/0x710 [ 420.833514][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.833514][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.833514][ T10] ___sys_sendmsg+0xee/0x170 [ 420.833514][ T10] __sys_sendmsg+0xcd/0x170 [ 420.833514][ T10] do_syscall_64+0xc6/0x1e0 [ 420.833514][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.833514][ T10] [ 420.835312][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 420.835312][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.835312][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.835312][ T10] ipv6_find_idev+0x102/0x170 [ 420.835312][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.835312][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.835312][ T10] netlink_rcv_skb+0x130/0x360 [ 420.835312][ T10] netlink_unicast+0x449/0x710 [ 420.835312][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.835312][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.835312][ T10] ___sys_sendmsg+0xee/0x170 [ 420.835312][ T10] __sys_sendmsg+0xcd/0x170 [ 420.835312][ T10] do_syscall_64+0xc6/0x1e0 [ 420.835312][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.835312][ T10] [ 420.837280][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 420.837597][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 420.837597][ T10] netdev_get_by_index+0x5e/0x80 [ 420.837597][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.837597][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.837597][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.837597][ T10] ipv6_add_addr+0x411/0x2000 [ 420.837597][ T10] inet6_addr_add+0x30e/0xa40 [ 420.837597][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.837597][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.837597][ T10] netlink_rcv_skb+0x130/0x360 [ 420.837597][ T10] netlink_unicast+0x449/0x710 [ 420.837597][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.837597][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.837597][ T10] ___sys_sendmsg+0xee/0x170 [ 420.837597][ T10] __sys_sendmsg+0xcd/0x170 [ 420.837597][ T10] do_syscall_64+0xc6/0x1e0 [ 420.837597][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.837597][ T10] [ 420.839898][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 420.839898][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.839898][ T10] ipv6_find_idev+0x102/0x170 [ 420.839898][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.839898][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.839898][ T10] netlink_rcv_skb+0x130/0x360 [ 420.839898][ T10] netlink_unicast+0x449/0x710 [ 420.839898][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.839898][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.839898][ T10] ___sys_sendmsg+0xee/0x170 [ 420.839898][ T10] __sys_sendmsg+0xcd/0x170 [ 420.839898][ T10] do_syscall_64+0xc6/0x1e0 [ 420.839898][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.839898][ T10] [ 420.841674][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 420.841674][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.841674][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.841674][ T10] ipv6_find_idev+0x102/0x170 [ 420.841674][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.841674][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.841674][ T10] netlink_rcv_skb+0x130/0x360 [ 420.841674][ T10] netlink_unicast+0x449/0x710 [ 420.841674][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.841674][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.841674][ T10] ___sys_sendmsg+0xee/0x170 [ 420.841674][ T10] __sys_sendmsg+0xcd/0x170 [ 420.841674][ T10] do_syscall_64+0xc6/0x1e0 [ 420.841674][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.841674][ T10] [ 420.844041][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 420.844343][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 420.844343][ T10] netdev_get_by_index+0x5e/0x80 [ 420.844343][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.844343][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.844343][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.844343][ T10] ipv6_add_addr+0x411/0x2000 [ 420.844343][ T10] inet6_addr_add+0x30e/0xa40 [ 420.844343][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.844343][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.844343][ T10] netlink_rcv_skb+0x130/0x360 [ 420.844343][ T10] netlink_unicast+0x449/0x710 [ 420.844343][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.844343][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.844343][ T10] ___sys_sendmsg+0xee/0x170 [ 420.844343][ T10] __sys_sendmsg+0xcd/0x170 [ 420.844343][ T10] do_syscall_64+0xc6/0x1e0 [ 420.844343][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.844343][ T10] [ 420.846853][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 420.846853][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.846853][ T10] ipv6_find_idev+0x102/0x170 [ 420.846853][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.846853][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.846853][ T10] netlink_rcv_skb+0x130/0x360 [ 420.846853][ T10] netlink_unicast+0x449/0x710 [ 420.846853][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.846853][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.846853][ T10] ___sys_sendmsg+0xee/0x170 [ 420.846853][ T10] __sys_sendmsg+0xcd/0x170 [ 420.846853][ T10] do_syscall_64+0xc6/0x1e0 [ 420.846853][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.846853][ T10] [ 420.848793][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 420.848793][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.848793][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.848793][ T10] ipv6_find_idev+0x102/0x170 [ 420.848793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.848793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.848793][ T10] netlink_rcv_skb+0x130/0x360 [ 420.848793][ T10] netlink_unicast+0x449/0x710 [ 420.848793][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.848793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.848793][ T10] ___sys_sendmsg+0xee/0x170 [ 420.848793][ T10] __sys_sendmsg+0xcd/0x170 [ 420.848793][ T10] do_syscall_64+0xc6/0x1e0 [ 420.848793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.848793][ T10] [ 420.850964][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 420.851262][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 420.851262][ T10] netdev_get_by_index+0x5e/0x80 [ 420.851262][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.851262][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.851262][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.851262][ T10] ipv6_add_addr+0x411/0x2000 [ 420.851262][ T10] inet6_addr_add+0x30e/0xa40 [ 420.851262][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.851262][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.851262][ T10] netlink_rcv_skb+0x130/0x360 [ 420.851262][ T10] netlink_unicast+0x449/0x710 [ 420.851262][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.851262][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.851262][ T10] ___sys_sendmsg+0xee/0x170 [ 420.851262][ T10] __sys_sendmsg+0xcd/0x170 [ 420.851262][ T10] do_syscall_64+0xc6/0x1e0 [ 420.851262][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.851262][ T10] [ 420.853796][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 420.853796][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.853796][ T10] ipv6_find_idev+0x102/0x170 [ 420.853796][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.853796][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.853796][ T10] netlink_rcv_skb+0x130/0x360 [ 420.853796][ T10] netlink_unicast+0x449/0x710 [ 420.853796][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.853796][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.853796][ T10] ___sys_sendmsg+0xee/0x170 [ 420.853796][ T10] __sys_sendmsg+0xcd/0x170 [ 420.853796][ T10] do_syscall_64+0xc6/0x1e0 [ 420.853796][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.853796][ T10] [ 420.855609][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 420.855609][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.855609][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.855609][ T10] ipv6_find_idev+0x102/0x170 [ 420.855609][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.855609][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.855609][ T10] netlink_rcv_skb+0x130/0x360 [ 420.855609][ T10] netlink_unicast+0x449/0x710 [ 420.855609][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.855609][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.855609][ T10] ___sys_sendmsg+0xee/0x170 [ 420.855609][ T10] __sys_sendmsg+0xcd/0x170 [ 420.855609][ T10] do_syscall_64+0xc6/0x1e0 [ 420.855609][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.855609][ T10] [ 420.857644][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 420.857958][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 420.857958][ T10] netdev_get_by_index+0x5e/0x80 [ 420.857958][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.857958][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.857958][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.857958][ T10] ipv6_add_addr+0x411/0x2000 [ 420.857958][ T10] inet6_addr_add+0x30e/0xa40 [ 420.857958][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.857958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.857958][ T10] netlink_rcv_skb+0x130/0x360 [ 420.857958][ T10] netlink_unicast+0x449/0x710 [ 420.857958][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.857958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.857958][ T10] ___sys_sendmsg+0xee/0x170 [ 420.857958][ T10] __sys_sendmsg+0xcd/0x170 [ 420.857958][ T10] do_syscall_64+0xc6/0x1e0 [ 420.857958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.857958][ T10] [ 420.860457][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 420.860457][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.860457][ T10] ipv6_find_idev+0x102/0x170 [ 420.860457][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.860457][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.860457][ T10] netlink_rcv_skb+0x130/0x360 [ 420.860457][ T10] netlink_unicast+0x449/0x710 [ 420.860457][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.860457][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.860457][ T10] ___sys_sendmsg+0xee/0x170 [ 420.860457][ T10] __sys_sendmsg+0xcd/0x170 [ 420.860457][ T10] do_syscall_64+0xc6/0x1e0 [ 420.860457][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.860457][ T10] [ 420.862578][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 420.862578][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.862578][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.862578][ T10] ipv6_find_idev+0x102/0x170 [ 420.862578][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.862578][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.862578][ T10] netlink_rcv_skb+0x130/0x360 [ 420.862578][ T10] netlink_unicast+0x449/0x710 [ 420.862578][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.862578][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.862578][ T10] ___sys_sendmsg+0xee/0x170 [ 420.862578][ T10] __sys_sendmsg+0xcd/0x170 [ 420.862578][ T10] do_syscall_64+0xc6/0x1e0 [ 420.862578][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.862578][ T10] [ 420.864804][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 420.865120][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 420.865120][ T10] netdev_get_by_index+0x5e/0x80 [ 420.865120][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.865120][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.865120][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.865120][ T10] ipv6_add_addr+0x411/0x2000 [ 420.865120][ T10] inet6_addr_add+0x30e/0xa40 [ 420.865120][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.865120][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.865120][ T10] netlink_rcv_skb+0x130/0x360 [ 420.865120][ T10] netlink_unicast+0x449/0x710 [ 420.865120][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.865120][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.865120][ T10] ___sys_sendmsg+0xee/0x170 [ 420.865120][ T10] __sys_sendmsg+0xcd/0x170 [ 420.865120][ T10] do_syscall_64+0xc6/0x1e0 [ 420.865120][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.865120][ T10] [ 420.867454][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 420.867454][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.867454][ T10] ipv6_find_idev+0x102/0x170 [ 420.867454][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.867454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.867454][ T10] netlink_rcv_skb+0x130/0x360 [ 420.867454][ T10] netlink_unicast+0x449/0x710 [ 420.867454][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.867454][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.867454][ T10] ___sys_sendmsg+0xee/0x170 [ 420.867454][ T10] __sys_sendmsg+0xcd/0x170 [ 420.867454][ T10] do_syscall_64+0xc6/0x1e0 [ 420.867454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.867454][ T10] [ 420.869325][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 420.869325][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.869325][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.869325][ T10] ipv6_find_idev+0x102/0x170 [ 420.869325][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.869325][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.869325][ T10] netlink_rcv_skb+0x130/0x360 [ 420.869325][ T10] netlink_unicast+0x449/0x710 [ 420.869325][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.869325][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.869325][ T10] ___sys_sendmsg+0xee/0x170 [ 420.869325][ T10] __sys_sendmsg+0xcd/0x170 [ 420.869325][ T10] do_syscall_64+0xc6/0x1e0 [ 420.869325][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.869325][ T10] [ 420.871950][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 420.872245][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 420.872245][ T10] netdev_get_by_index+0x5e/0x80 [ 420.872245][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.872245][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.872245][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.872245][ T10] ipv6_add_addr+0x411/0x2000 [ 420.872245][ T10] inet6_addr_add+0x30e/0xa40 [ 420.872245][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.872245][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.872245][ T10] netlink_rcv_skb+0x130/0x360 [ 420.872245][ T10] netlink_unicast+0x449/0x710 [ 420.872245][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.872245][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.872245][ T10] ___sys_sendmsg+0xee/0x170 [ 420.872245][ T10] __sys_sendmsg+0xcd/0x170 [ 420.872245][ T10] do_syscall_64+0xc6/0x1e0 [ 420.872245][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.872245][ T10] [ 420.874498][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 420.874498][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.874498][ T10] ipv6_find_idev+0x102/0x170 [ 420.874498][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.874498][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.874498][ T10] netlink_rcv_skb+0x130/0x360 [ 420.874498][ T10] netlink_unicast+0x449/0x710 [ 420.874498][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.874498][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.874498][ T10] ___sys_sendmsg+0xee/0x170 [ 420.874498][ T10] __sys_sendmsg+0xcd/0x170 [ 420.874498][ T10] do_syscall_64+0xc6/0x1e0 [ 420.874498][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.874498][ T10] [ 420.876393][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 420.876393][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.876393][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.876393][ T10] ipv6_find_idev+0x102/0x170 [ 420.876393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.876393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.876393][ T10] netlink_rcv_skb+0x130/0x360 [ 420.876393][ T10] netlink_unicast+0x449/0x710 [ 420.876393][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.876393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.876393][ T10] ___sys_sendmsg+0xee/0x170 [ 420.876393][ T10] __sys_sendmsg+0xcd/0x170 [ 420.876393][ T10] do_syscall_64+0xc6/0x1e0 [ 420.876393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.876393][ T10] [ 420.878516][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 420.878989][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 420.878989][ T10] netdev_get_by_index+0x5e/0x80 [ 420.878989][ T10] fib6_nh_init+0x3d8/0x15b0 [ 420.878989][ T10] ip6_route_info_create+0xf18/0x17d0 [ 420.878989][ T10] addrconf_f6i_alloc+0x244/0x410 [ 420.878989][ T10] ipv6_add_addr+0x411/0x2000 [ 420.878989][ T10] inet6_addr_add+0x30e/0xa40 [ 420.878989][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 420.878989][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.878989][ T10] netlink_rcv_skb+0x130/0x360 [ 420.878989][ T10] netlink_unicast+0x449/0x710 [ 420.878989][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.878989][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.878989][ T10] ___sys_sendmsg+0xee/0x170 [ 420.878989][ T10] __sys_sendmsg+0xcd/0x170 [ 420.878989][ T10] do_syscall_64+0xc6/0x1e0 [ 420.878989][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.878989][ T10] [ 420.881276][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 420.881276][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 420.881276][ T10] ipv6_find_idev+0x102/0x170 [ 420.881276][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.881276][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.881276][ T10] netlink_rcv_skb+0x130/0x360 [ 420.881276][ T10] netlink_unicast+0x449/0x710 [ 420.881276][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.881276][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.881276][ T10] ___sys_sendmsg+0xee/0x170 [ 420.881276][ T10] __sys_sendmsg+0xcd/0x170 [ 420.881276][ T10] do_syscall_64+0xc6/0x1e0 [ 420.881276][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.881276][ T10] [ 420.883048][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 420.883048][ T10] neigh_parms_alloc+0x1e5/0x510 [ 420.883048][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 420.883048][ T10] ipv6_find_idev+0x102/0x170 [ 420.883048][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 420.883048][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 420.883048][ T10] netlink_rcv_skb+0x130/0x360 [ 420.883048][ T10] netlink_unicast+0x449/0x710 [ 420.883048][ T10] netlink_sendmsg+0x723/0xbe0 [ 420.883048][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 420.883048][ T10] ___sys_sendmsg+0xee/0x170 [ 420.883048][ T10] __sys_sendmsg+0xcd/0x170 [ 420.883048][ T10] do_syscall_64+0xc6/0x1e0 [ 420.883048][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 420.883048][ T10] [ 430.902809][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 430.903332][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 430.903332][ T10] netdev_get_by_index+0x5e/0x80 [ 430.903332][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.903332][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.903332][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.903332][ T10] ipv6_add_addr+0x411/0x2000 [ 430.903332][ T10] inet6_addr_add+0x30e/0xa40 [ 430.903332][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.903332][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.903332][ T10] netlink_rcv_skb+0x130/0x360 [ 430.903332][ T10] netlink_unicast+0x449/0x710 [ 430.903332][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.903332][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.903332][ T10] ___sys_sendmsg+0xee/0x170 [ 430.903332][ T10] __sys_sendmsg+0xcd/0x170 [ 430.903332][ T10] do_syscall_64+0xc6/0x1e0 [ 430.903332][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.903332][ T10] [ 430.905379][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 430.905379][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.905379][ T10] ipv6_find_idev+0x102/0x170 [ 430.905379][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.905379][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.905379][ T10] netlink_rcv_skb+0x130/0x360 [ 430.905379][ T10] netlink_unicast+0x449/0x710 [ 430.905379][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.905379][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.905379][ T10] ___sys_sendmsg+0xee/0x170 [ 430.905379][ T10] __sys_sendmsg+0xcd/0x170 [ 430.905379][ T10] do_syscall_64+0xc6/0x1e0 [ 430.905379][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.905379][ T10] [ 430.906954][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 430.906954][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.906954][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.906954][ T10] ipv6_find_idev+0x102/0x170 [ 430.906954][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.906954][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.906954][ T10] netlink_rcv_skb+0x130/0x360 [ 430.906954][ T10] netlink_unicast+0x449/0x710 [ 430.906954][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.906954][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.906954][ T10] ___sys_sendmsg+0xee/0x170 [ 430.906954][ T10] __sys_sendmsg+0xcd/0x170 [ 430.906954][ T10] do_syscall_64+0xc6/0x1e0 [ 430.906954][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.906954][ T10] [ 430.908680][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 430.908958][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 430.908958][ T10] netdev_get_by_index+0x5e/0x80 [ 430.908958][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.908958][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.908958][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.908958][ T10] ipv6_add_addr+0x411/0x2000 [ 430.908958][ T10] inet6_addr_add+0x30e/0xa40 [ 430.908958][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.908958][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.908958][ T10] netlink_rcv_skb+0x130/0x360 [ 430.908958][ T10] netlink_unicast+0x449/0x710 [ 430.908958][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.908958][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.908958][ T10] ___sys_sendmsg+0xee/0x170 [ 430.908958][ T10] __sys_sendmsg+0xcd/0x170 [ 430.908958][ T10] do_syscall_64+0xc6/0x1e0 [ 430.908958][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.908958][ T10] [ 430.910930][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 430.910930][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.910930][ T10] ipv6_find_idev+0x102/0x170 [ 430.910930][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.910930][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.910930][ T10] netlink_rcv_skb+0x130/0x360 [ 430.910930][ T10] netlink_unicast+0x449/0x710 [ 430.910930][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.910930][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.910930][ T10] ___sys_sendmsg+0xee/0x170 [ 430.910930][ T10] __sys_sendmsg+0xcd/0x170 [ 430.910930][ T10] do_syscall_64+0xc6/0x1e0 [ 430.910930][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.910930][ T10] [ 430.912458][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 430.912458][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.912458][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.912458][ T10] ipv6_find_idev+0x102/0x170 [ 430.912458][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.912458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.912458][ T10] netlink_rcv_skb+0x130/0x360 [ 430.912458][ T10] netlink_unicast+0x449/0x710 [ 430.912458][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.912458][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.912458][ T10] ___sys_sendmsg+0xee/0x170 [ 430.912458][ T10] __sys_sendmsg+0xcd/0x170 [ 430.912458][ T10] do_syscall_64+0xc6/0x1e0 [ 430.912458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.912458][ T10] [ 430.914151][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 430.914419][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 430.914419][ T10] netdev_get_by_index+0x5e/0x80 [ 430.914419][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.914419][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.914419][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.914419][ T10] ipv6_add_addr+0x411/0x2000 [ 430.914419][ T10] inet6_addr_add+0x30e/0xa40 [ 430.914419][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.914419][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.914419][ T10] netlink_rcv_skb+0x130/0x360 [ 430.914419][ T10] netlink_unicast+0x449/0x710 [ 430.914419][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.914419][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.914419][ T10] ___sys_sendmsg+0xee/0x170 [ 430.914419][ T10] __sys_sendmsg+0xcd/0x170 [ 430.914419][ T10] do_syscall_64+0xc6/0x1e0 [ 430.914419][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.914419][ T10] [ 430.916405][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 430.916405][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.916405][ T10] ipv6_find_idev+0x102/0x170 [ 430.916405][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.916405][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.916405][ T10] netlink_rcv_skb+0x130/0x360 [ 430.916405][ T10] netlink_unicast+0x449/0x710 [ 430.916405][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.916405][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.916405][ T10] ___sys_sendmsg+0xee/0x170 [ 430.916405][ T10] __sys_sendmsg+0xcd/0x170 [ 430.916405][ T10] do_syscall_64+0xc6/0x1e0 [ 430.916405][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.916405][ T10] [ 430.917934][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 430.917934][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.917934][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.917934][ T10] ipv6_find_idev+0x102/0x170 [ 430.917934][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.917934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.917934][ T10] netlink_rcv_skb+0x130/0x360 [ 430.917934][ T10] netlink_unicast+0x449/0x710 [ 430.917934][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.917934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.917934][ T10] ___sys_sendmsg+0xee/0x170 [ 430.917934][ T10] __sys_sendmsg+0xcd/0x170 [ 430.917934][ T10] do_syscall_64+0xc6/0x1e0 [ 430.917934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.917934][ T10] [ 430.919597][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 430.920313][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 430.920313][ T10] netdev_get_by_index+0x5e/0x80 [ 430.920313][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.920313][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.920313][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.920313][ T10] ipv6_add_addr+0x411/0x2000 [ 430.920313][ T10] inet6_addr_add+0x30e/0xa40 [ 430.920313][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.920313][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.920313][ T10] netlink_rcv_skb+0x130/0x360 [ 430.920313][ T10] netlink_unicast+0x449/0x710 [ 430.920313][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.920313][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.920313][ T10] ___sys_sendmsg+0xee/0x170 [ 430.920313][ T10] __sys_sendmsg+0xcd/0x170 [ 430.920313][ T10] do_syscall_64+0xc6/0x1e0 [ 430.920313][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.920313][ T10] [ 430.922365][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 430.922365][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.922365][ T10] ipv6_find_idev+0x102/0x170 [ 430.922365][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.922365][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.922365][ T10] netlink_rcv_skb+0x130/0x360 [ 430.922365][ T10] netlink_unicast+0x449/0x710 [ 430.922365][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.922365][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.922365][ T10] ___sys_sendmsg+0xee/0x170 [ 430.922365][ T10] __sys_sendmsg+0xcd/0x170 [ 430.922365][ T10] do_syscall_64+0xc6/0x1e0 [ 430.922365][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.922365][ T10] [ 430.923896][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 430.923896][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.923896][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.923896][ T10] ipv6_find_idev+0x102/0x170 [ 430.923896][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.923896][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.923896][ T10] netlink_rcv_skb+0x130/0x360 [ 430.923896][ T10] netlink_unicast+0x449/0x710 [ 430.923896][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.923896][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.923896][ T10] ___sys_sendmsg+0xee/0x170 [ 430.923896][ T10] __sys_sendmsg+0xcd/0x170 [ 430.923896][ T10] do_syscall_64+0xc6/0x1e0 [ 430.923896][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.923896][ T10] [ 430.925606][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 430.925928][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 430.925928][ T10] netdev_get_by_index+0x5e/0x80 [ 430.925928][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.925928][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.925928][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.925928][ T10] ipv6_add_addr+0x411/0x2000 [ 430.925928][ T10] inet6_addr_add+0x30e/0xa40 [ 430.925928][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.925928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.925928][ T10] netlink_rcv_skb+0x130/0x360 [ 430.925928][ T10] netlink_unicast+0x449/0x710 [ 430.925928][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.925928][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.925928][ T10] ___sys_sendmsg+0xee/0x170 [ 430.925928][ T10] __sys_sendmsg+0xcd/0x170 [ 430.925928][ T10] do_syscall_64+0xc6/0x1e0 [ 430.925928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.925928][ T10] [ 430.927895][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 430.927895][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.927895][ T10] ipv6_find_idev+0x102/0x170 [ 430.927895][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.927895][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.927895][ T10] netlink_rcv_skb+0x130/0x360 [ 430.927895][ T10] netlink_unicast+0x449/0x710 [ 430.927895][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.927895][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.927895][ T10] ___sys_sendmsg+0xee/0x170 [ 430.927895][ T10] __sys_sendmsg+0xcd/0x170 [ 430.927895][ T10] do_syscall_64+0xc6/0x1e0 [ 430.927895][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.927895][ T10] [ 430.929424][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 430.929424][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.929424][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.929424][ T10] ipv6_find_idev+0x102/0x170 [ 430.929424][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.929424][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.929424][ T10] netlink_rcv_skb+0x130/0x360 [ 430.929424][ T10] netlink_unicast+0x449/0x710 [ 430.929424][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.929424][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.929424][ T10] ___sys_sendmsg+0xee/0x170 [ 430.929424][ T10] __sys_sendmsg+0xcd/0x170 [ 430.929424][ T10] do_syscall_64+0xc6/0x1e0 [ 430.929424][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.929424][ T10] [ 430.931120][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 430.931394][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 430.931394][ T10] netdev_get_by_index+0x5e/0x80 [ 430.931394][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.931394][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.931394][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.931394][ T10] ipv6_add_addr+0x411/0x2000 [ 430.931394][ T10] inet6_addr_add+0x30e/0xa40 [ 430.931394][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.931394][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.931394][ T10] netlink_rcv_skb+0x130/0x360 [ 430.931394][ T10] netlink_unicast+0x449/0x710 [ 430.931394][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.931394][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.931394][ T10] ___sys_sendmsg+0xee/0x170 [ 430.931394][ T10] __sys_sendmsg+0xcd/0x170 [ 430.931394][ T10] do_syscall_64+0xc6/0x1e0 [ 430.931394][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.931394][ T10] [ 430.933388][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 430.933388][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.933388][ T10] ipv6_find_idev+0x102/0x170 [ 430.933388][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.933388][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.933388][ T10] netlink_rcv_skb+0x130/0x360 [ 430.933388][ T10] netlink_unicast+0x449/0x710 [ 430.933388][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.933388][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.933388][ T10] ___sys_sendmsg+0xee/0x170 [ 430.933388][ T10] __sys_sendmsg+0xcd/0x170 [ 430.933388][ T10] do_syscall_64+0xc6/0x1e0 [ 430.933388][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.933388][ T10] [ 430.935104][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 430.935104][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.935104][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.935104][ T10] ipv6_find_idev+0x102/0x170 [ 430.935104][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.935104][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.935104][ T10] netlink_rcv_skb+0x130/0x360 [ 430.935104][ T10] netlink_unicast+0x449/0x710 [ 430.935104][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.935104][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.935104][ T10] ___sys_sendmsg+0xee/0x170 [ 430.935104][ T10] __sys_sendmsg+0xcd/0x170 [ 430.935104][ T10] do_syscall_64+0xc6/0x1e0 [ 430.935104][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.935104][ T10] [ 430.937046][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 430.937311][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 430.937311][ T10] netdev_get_by_index+0x5e/0x80 [ 430.937311][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.937311][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.937311][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.937311][ T10] ipv6_add_addr+0x411/0x2000 [ 430.937311][ T10] inet6_addr_add+0x30e/0xa40 [ 430.937311][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.937311][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.937311][ T10] netlink_rcv_skb+0x130/0x360 [ 430.937311][ T10] netlink_unicast+0x449/0x710 [ 430.937311][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.937311][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.937311][ T10] ___sys_sendmsg+0xee/0x170 [ 430.937311][ T10] __sys_sendmsg+0xcd/0x170 [ 430.937311][ T10] do_syscall_64+0xc6/0x1e0 [ 430.937311][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.937311][ T10] [ 430.939479][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 430.939479][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.939479][ T10] ipv6_find_idev+0x102/0x170 [ 430.939479][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.939479][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.939479][ T10] netlink_rcv_skb+0x130/0x360 [ 430.939479][ T10] netlink_unicast+0x449/0x710 [ 430.939479][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.939479][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.939479][ T10] ___sys_sendmsg+0xee/0x170 [ 430.939479][ T10] __sys_sendmsg+0xcd/0x170 [ 430.939479][ T10] do_syscall_64+0xc6/0x1e0 [ 430.939479][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.939479][ T10] [ 430.941187][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 430.941187][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.941187][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.941187][ T10] ipv6_find_idev+0x102/0x170 [ 430.941187][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.941187][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.941187][ T10] netlink_rcv_skb+0x130/0x360 [ 430.941187][ T10] netlink_unicast+0x449/0x710 [ 430.941187][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.941187][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.941187][ T10] ___sys_sendmsg+0xee/0x170 [ 430.941187][ T10] __sys_sendmsg+0xcd/0x170 [ 430.941187][ T10] do_syscall_64+0xc6/0x1e0 [ 430.941187][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.941187][ T10] [ 430.943138][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 430.943463][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 430.943463][ T10] netdev_get_by_index+0x5e/0x80 [ 430.943463][ T10] fib6_nh_init+0x3d8/0x15b0 [ 430.943463][ T10] ip6_route_info_create+0xf18/0x17d0 [ 430.943463][ T10] addrconf_f6i_alloc+0x244/0x410 [ 430.943463][ T10] ipv6_add_addr+0x411/0x2000 [ 430.943463][ T10] inet6_addr_add+0x30e/0xa40 [ 430.943463][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 430.943463][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.943463][ T10] netlink_rcv_skb+0x130/0x360 [ 430.943463][ T10] netlink_unicast+0x449/0x710 [ 430.943463][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.943463][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.943463][ T10] ___sys_sendmsg+0xee/0x170 [ 430.943463][ T10] __sys_sendmsg+0xcd/0x170 [ 430.943463][ T10] do_syscall_64+0xc6/0x1e0 [ 430.943463][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.943463][ T10] [ 430.945633][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 430.945633][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 430.945633][ T10] ipv6_find_idev+0x102/0x170 [ 430.945633][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.945633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.945633][ T10] netlink_rcv_skb+0x130/0x360 [ 430.945633][ T10] netlink_unicast+0x449/0x710 [ 430.945633][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.945633][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.945633][ T10] ___sys_sendmsg+0xee/0x170 [ 430.945633][ T10] __sys_sendmsg+0xcd/0x170 [ 430.945633][ T10] do_syscall_64+0xc6/0x1e0 [ 430.945633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.945633][ T10] [ 430.947352][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 430.947352][ T10] neigh_parms_alloc+0x1e5/0x510 [ 430.947352][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 430.947352][ T10] ipv6_find_idev+0x102/0x170 [ 430.947352][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 430.947352][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 430.947352][ T10] netlink_rcv_skb+0x130/0x360 [ 430.947352][ T10] netlink_unicast+0x449/0x710 [ 430.947352][ T10] netlink_sendmsg+0x723/0xbe0 [ 430.947352][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 430.947352][ T10] ___sys_sendmsg+0xee/0x170 [ 430.947352][ T10] __sys_sendmsg+0xcd/0x170 [ 430.947352][ T10] do_syscall_64+0xc6/0x1e0 [ 430.947352][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 430.947352][ T10] [ 440.958780][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 440.959227][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 440.959227][ T10] netdev_get_by_index+0x5e/0x80 [ 440.959227][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.959227][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.959227][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.959227][ T10] ipv6_add_addr+0x411/0x2000 [ 440.959227][ T10] inet6_addr_add+0x30e/0xa40 [ 440.959227][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.959227][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.959227][ T10] netlink_rcv_skb+0x130/0x360 [ 440.959227][ T10] netlink_unicast+0x449/0x710 [ 440.959227][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.959227][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.959227][ T10] ___sys_sendmsg+0xee/0x170 [ 440.959227][ T10] __sys_sendmsg+0xcd/0x170 [ 440.959227][ T10] do_syscall_64+0xc6/0x1e0 [ 440.959227][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.959227][ T10] [ 440.961267][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 440.961267][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 440.961267][ T10] ipv6_find_idev+0x102/0x170 [ 440.961267][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.961267][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.961267][ T10] netlink_rcv_skb+0x130/0x360 [ 440.961267][ T10] netlink_unicast+0x449/0x710 [ 440.961267][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.961267][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.961267][ T10] ___sys_sendmsg+0xee/0x170 [ 440.961267][ T10] __sys_sendmsg+0xcd/0x170 [ 440.961267][ T10] do_syscall_64+0xc6/0x1e0 [ 440.961267][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.961267][ T10] [ 440.962832][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 440.962832][ T10] neigh_parms_alloc+0x1e5/0x510 [ 440.962832][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 440.962832][ T10] ipv6_find_idev+0x102/0x170 [ 440.962832][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.962832][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.962832][ T10] netlink_rcv_skb+0x130/0x360 [ 440.962832][ T10] netlink_unicast+0x449/0x710 [ 440.962832][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.962832][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.962832][ T10] ___sys_sendmsg+0xee/0x170 [ 440.962832][ T10] __sys_sendmsg+0xcd/0x170 [ 440.962832][ T10] do_syscall_64+0xc6/0x1e0 [ 440.962832][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.962832][ T10] [ 440.964570][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 440.964878][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 440.964878][ T10] netdev_get_by_index+0x5e/0x80 [ 440.964878][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.964878][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.964878][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.964878][ T10] ipv6_add_addr+0x411/0x2000 [ 440.964878][ T10] inet6_addr_add+0x30e/0xa40 [ 440.964878][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.964878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.964878][ T10] netlink_rcv_skb+0x130/0x360 [ 440.964878][ T10] netlink_unicast+0x449/0x710 [ 440.964878][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.964878][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.964878][ T10] ___sys_sendmsg+0xee/0x170 [ 440.964878][ T10] __sys_sendmsg+0xcd/0x170 [ 440.964878][ T10] do_syscall_64+0xc6/0x1e0 [ 440.964878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.964878][ T10] [ 440.966891][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 440.966891][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 440.966891][ T10] ipv6_find_idev+0x102/0x170 [ 440.966891][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.966891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.966891][ T10] netlink_rcv_skb+0x130/0x360 [ 440.966891][ T10] netlink_unicast+0x449/0x710 [ 440.966891][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.966891][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.966891][ T10] ___sys_sendmsg+0xee/0x170 [ 440.966891][ T10] __sys_sendmsg+0xcd/0x170 [ 440.966891][ T10] do_syscall_64+0xc6/0x1e0 [ 440.966891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.966891][ T10] [ 440.968432][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 440.968432][ T10] neigh_parms_alloc+0x1e5/0x510 [ 440.968432][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 440.968432][ T10] ipv6_find_idev+0x102/0x170 [ 440.968432][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.968432][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.968432][ T10] netlink_rcv_skb+0x130/0x360 [ 440.968432][ T10] netlink_unicast+0x449/0x710 [ 440.968432][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.968432][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.968432][ T10] ___sys_sendmsg+0xee/0x170 [ 440.968432][ T10] __sys_sendmsg+0xcd/0x170 [ 440.968432][ T10] do_syscall_64+0xc6/0x1e0 [ 440.968432][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.968432][ T10] [ 440.970127][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 440.970398][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 440.970398][ T10] netdev_get_by_index+0x5e/0x80 [ 440.970398][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.970398][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.970398][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.970398][ T10] ipv6_add_addr+0x411/0x2000 [ 440.970398][ T10] inet6_addr_add+0x30e/0xa40 [ 440.970398][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.970398][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.970398][ T10] netlink_rcv_skb+0x130/0x360 [ 440.970398][ T10] netlink_unicast+0x449/0x710 [ 440.970398][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.970398][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.970398][ T10] ___sys_sendmsg+0xee/0x170 [ 440.970398][ T10] __sys_sendmsg+0xcd/0x170 [ 440.970398][ T10] do_syscall_64+0xc6/0x1e0 [ 440.970398][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.970398][ T10] [ 440.972400][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 440.972400][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 440.972400][ T10] ipv6_find_idev+0x102/0x170 [ 440.972400][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.972400][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.972400][ T10] netlink_rcv_skb+0x130/0x360 [ 440.972400][ T10] netlink_unicast+0x449/0x710 [ 440.972400][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.972400][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.972400][ T10] ___sys_sendmsg+0xee/0x170 [ 440.972400][ T10] __sys_sendmsg+0xcd/0x170 [ 440.972400][ T10] do_syscall_64+0xc6/0x1e0 [ 440.972400][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.972400][ T10] [ 440.973945][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 440.973945][ T10] neigh_parms_alloc+0x1e5/0x510 [ 440.973945][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 440.973945][ T10] ipv6_find_idev+0x102/0x170 [ 440.973945][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.973945][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.973945][ T10] netlink_rcv_skb+0x130/0x360 [ 440.973945][ T10] netlink_unicast+0x449/0x710 [ 440.973945][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.973945][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.973945][ T10] ___sys_sendmsg+0xee/0x170 [ 440.973945][ T10] __sys_sendmsg+0xcd/0x170 [ 440.973945][ T10] do_syscall_64+0xc6/0x1e0 [ 440.973945][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.973945][ T10] [ 440.975642][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 440.976362][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 440.976362][ T10] netdev_get_by_index+0x5e/0x80 [ 440.976362][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.976362][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.976362][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.976362][ T10] ipv6_add_addr+0x411/0x2000 [ 440.976362][ T10] inet6_addr_add+0x30e/0xa40 [ 440.976362][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.976362][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.976362][ T10] netlink_rcv_skb+0x130/0x360 [ 440.976362][ T10] netlink_unicast+0x449/0x710 [ 440.976362][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.976362][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.976362][ T10] ___sys_sendmsg+0xee/0x170 [ 440.976362][ T10] __sys_sendmsg+0xcd/0x170 [ 440.976362][ T10] do_syscall_64+0xc6/0x1e0 [ 440.976362][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.976362][ T10] [ 440.978478][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 440.978478][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 440.978478][ T10] ipv6_find_idev+0x102/0x170 [ 440.978478][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.978478][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.978478][ T10] netlink_rcv_skb+0x130/0x360 [ 440.978478][ T10] netlink_unicast+0x449/0x710 [ 440.978478][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.978478][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.978478][ T10] ___sys_sendmsg+0xee/0x170 [ 440.978478][ T10] __sys_sendmsg+0xcd/0x170 [ 440.978478][ T10] do_syscall_64+0xc6/0x1e0 [ 440.978478][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.978478][ T10] [ 440.980039][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 440.980039][ T10] neigh_parms_alloc+0x1e5/0x510 [ 440.980039][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 440.980039][ T10] ipv6_find_idev+0x102/0x170 [ 440.980039][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.980039][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.980039][ T10] netlink_rcv_skb+0x130/0x360 [ 440.980039][ T10] netlink_unicast+0x449/0x710 [ 440.980039][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.980039][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.980039][ T10] ___sys_sendmsg+0xee/0x170 [ 440.980039][ T10] __sys_sendmsg+0xcd/0x170 [ 440.980039][ T10] do_syscall_64+0xc6/0x1e0 [ 440.980039][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.980039][ T10] [ 440.981783][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 440.982097][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 440.982097][ T10] netdev_get_by_index+0x5e/0x80 [ 440.982097][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.982097][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.982097][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.982097][ T10] ipv6_add_addr+0x411/0x2000 [ 440.982097][ T10] inet6_addr_add+0x30e/0xa40 [ 440.982097][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.982097][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.982097][ T10] netlink_rcv_skb+0x130/0x360 [ 440.982097][ T10] netlink_unicast+0x449/0x710 [ 440.982097][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.982097][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.982097][ T10] ___sys_sendmsg+0xee/0x170 [ 440.982097][ T10] __sys_sendmsg+0xcd/0x170 [ 440.982097][ T10] do_syscall_64+0xc6/0x1e0 [ 440.982097][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.982097][ T10] [ 440.984106][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 440.984106][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 440.984106][ T10] ipv6_find_idev+0x102/0x170 [ 440.984106][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.984106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.984106][ T10] netlink_rcv_skb+0x130/0x360 [ 440.984106][ T10] netlink_unicast+0x449/0x710 [ 440.984106][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.984106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.984106][ T10] ___sys_sendmsg+0xee/0x170 [ 440.984106][ T10] __sys_sendmsg+0xcd/0x170 [ 440.984106][ T10] do_syscall_64+0xc6/0x1e0 [ 440.984106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.984106][ T10] [ 440.985655][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 440.985655][ T10] neigh_parms_alloc+0x1e5/0x510 [ 440.985655][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 440.985655][ T10] ipv6_find_idev+0x102/0x170 [ 440.985655][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.985655][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.985655][ T10] netlink_rcv_skb+0x130/0x360 [ 440.985655][ T10] netlink_unicast+0x449/0x710 [ 440.985655][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.985655][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.985655][ T10] ___sys_sendmsg+0xee/0x170 [ 440.985655][ T10] __sys_sendmsg+0xcd/0x170 [ 440.985655][ T10] do_syscall_64+0xc6/0x1e0 [ 440.985655][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.985655][ T10] [ 440.987401][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 440.987735][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 440.987735][ T10] netdev_get_by_index+0x5e/0x80 [ 440.987735][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.987735][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.987735][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.987735][ T10] ipv6_add_addr+0x411/0x2000 [ 440.987735][ T10] inet6_addr_add+0x30e/0xa40 [ 440.987735][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.987735][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.987735][ T10] netlink_rcv_skb+0x130/0x360 [ 440.987735][ T10] netlink_unicast+0x449/0x710 [ 440.987735][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.987735][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.987735][ T10] ___sys_sendmsg+0xee/0x170 [ 440.987735][ T10] __sys_sendmsg+0xcd/0x170 [ 440.987735][ T10] do_syscall_64+0xc6/0x1e0 [ 440.987735][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.987735][ T10] [ 440.989752][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 440.989752][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 440.989752][ T10] ipv6_find_idev+0x102/0x170 [ 440.989752][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.989752][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.989752][ T10] netlink_rcv_skb+0x130/0x360 [ 440.989752][ T10] netlink_unicast+0x449/0x710 [ 440.989752][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.989752][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.989752][ T10] ___sys_sendmsg+0xee/0x170 [ 440.989752][ T10] __sys_sendmsg+0xcd/0x170 [ 440.989752][ T10] do_syscall_64+0xc6/0x1e0 [ 440.989752][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.989752][ T10] [ 440.991475][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 440.991475][ T10] neigh_parms_alloc+0x1e5/0x510 [ 440.991475][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 440.991475][ T10] ipv6_find_idev+0x102/0x170 [ 440.991475][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.991475][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.991475][ T10] netlink_rcv_skb+0x130/0x360 [ 440.991475][ T10] netlink_unicast+0x449/0x710 [ 440.991475][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.991475][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.991475][ T10] ___sys_sendmsg+0xee/0x170 [ 440.991475][ T10] __sys_sendmsg+0xcd/0x170 [ 440.991475][ T10] do_syscall_64+0xc6/0x1e0 [ 440.991475][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.991475][ T10] [ 440.993526][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 440.993862][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 440.993862][ T10] netdev_get_by_index+0x5e/0x80 [ 440.993862][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.993862][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.993862][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.993862][ T10] ipv6_add_addr+0x411/0x2000 [ 440.993862][ T10] inet6_addr_add+0x30e/0xa40 [ 440.993862][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.993862][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.993862][ T10] netlink_rcv_skb+0x130/0x360 [ 440.993862][ T10] netlink_unicast+0x449/0x710 [ 440.993862][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.993862][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.993862][ T10] ___sys_sendmsg+0xee/0x170 [ 440.993862][ T10] __sys_sendmsg+0xcd/0x170 [ 440.993862][ T10] do_syscall_64+0xc6/0x1e0 [ 440.993862][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.993862][ T10] [ 440.995986][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 440.995986][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 440.995986][ T10] ipv6_find_idev+0x102/0x170 [ 440.995986][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.995986][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.995986][ T10] netlink_rcv_skb+0x130/0x360 [ 440.995986][ T10] netlink_unicast+0x449/0x710 [ 440.995986][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.995986][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.995986][ T10] ___sys_sendmsg+0xee/0x170 [ 440.995986][ T10] __sys_sendmsg+0xcd/0x170 [ 440.995986][ T10] do_syscall_64+0xc6/0x1e0 [ 440.995986][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.995986][ T10] [ 440.997644][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 440.997644][ T10] neigh_parms_alloc+0x1e5/0x510 [ 440.997644][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 440.997644][ T10] ipv6_find_idev+0x102/0x170 [ 440.997644][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 440.997644][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.997644][ T10] netlink_rcv_skb+0x130/0x360 [ 440.997644][ T10] netlink_unicast+0x449/0x710 [ 440.997644][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.997644][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.997644][ T10] ___sys_sendmsg+0xee/0x170 [ 440.997644][ T10] __sys_sendmsg+0xcd/0x170 [ 440.997644][ T10] do_syscall_64+0xc6/0x1e0 [ 440.997644][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.997644][ T10] [ 440.999623][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 440.999955][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 440.999955][ T10] netdev_get_by_index+0x5e/0x80 [ 440.999955][ T10] fib6_nh_init+0x3d8/0x15b0 [ 440.999955][ T10] ip6_route_info_create+0xf18/0x17d0 [ 440.999955][ T10] addrconf_f6i_alloc+0x244/0x410 [ 440.999955][ T10] ipv6_add_addr+0x411/0x2000 [ 440.999955][ T10] inet6_addr_add+0x30e/0xa40 [ 440.999955][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 440.999955][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 440.999955][ T10] netlink_rcv_skb+0x130/0x360 [ 440.999955][ T10] netlink_unicast+0x449/0x710 [ 440.999955][ T10] netlink_sendmsg+0x723/0xbe0 [ 440.999955][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 440.999955][ T10] ___sys_sendmsg+0xee/0x170 [ 440.999955][ T10] __sys_sendmsg+0xcd/0x170 [ 440.999955][ T10] do_syscall_64+0xc6/0x1e0 [ 440.999955][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 440.999955][ T10] [ 441.002128][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 441.002128][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 441.002128][ T10] ipv6_find_idev+0x102/0x170 [ 441.002128][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 441.002128][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 441.002128][ T10] netlink_rcv_skb+0x130/0x360 [ 441.002128][ T10] netlink_unicast+0x449/0x710 [ 441.002128][ T10] netlink_sendmsg+0x723/0xbe0 [ 441.002128][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 441.002128][ T10] ___sys_sendmsg+0xee/0x170 [ 441.002128][ T10] __sys_sendmsg+0xcd/0x170 [ 441.002128][ T10] do_syscall_64+0xc6/0x1e0 [ 441.002128][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 441.002128][ T10] [ 441.003920][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 441.003920][ T10] neigh_parms_alloc+0x1e5/0x510 [ 441.003920][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 441.003920][ T10] ipv6_find_idev+0x102/0x170 [ 441.003920][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 441.003920][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 441.003920][ T10] netlink_rcv_skb+0x130/0x360 [ 441.003920][ T10] netlink_unicast+0x449/0x710 [ 441.003920][ T10] netlink_sendmsg+0x723/0xbe0 [ 441.003920][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 441.003920][ T10] ___sys_sendmsg+0xee/0x170 [ 441.003920][ T10] __sys_sendmsg+0xcd/0x170 [ 441.003920][ T10] do_syscall_64+0xc6/0x1e0 [ 441.003920][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 441.003920][ T10] [ 451.022778][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 451.023268][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 451.023268][ T10] netdev_get_by_index+0x5e/0x80 [ 451.023268][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.023268][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.023268][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.023268][ T10] ipv6_add_addr+0x411/0x2000 [ 451.023268][ T10] inet6_addr_add+0x30e/0xa40 [ 451.023268][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.023268][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.023268][ T10] netlink_rcv_skb+0x130/0x360 [ 451.023268][ T10] netlink_unicast+0x449/0x710 [ 451.023268][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.023268][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.023268][ T10] ___sys_sendmsg+0xee/0x170 [ 451.023268][ T10] __sys_sendmsg+0xcd/0x170 [ 451.023268][ T10] do_syscall_64+0xc6/0x1e0 [ 451.023268][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.023268][ T10] [ 451.025334][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 451.025334][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.025334][ T10] ipv6_find_idev+0x102/0x170 [ 451.025334][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.025334][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.025334][ T10] netlink_rcv_skb+0x130/0x360 [ 451.025334][ T10] netlink_unicast+0x449/0x710 [ 451.025334][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.025334][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.025334][ T10] ___sys_sendmsg+0xee/0x170 [ 451.025334][ T10] __sys_sendmsg+0xcd/0x170 [ 451.025334][ T10] do_syscall_64+0xc6/0x1e0 [ 451.025334][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.025334][ T10] [ 451.026899][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 451.026899][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.026899][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.026899][ T10] ipv6_find_idev+0x102/0x170 [ 451.026899][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.026899][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.026899][ T10] netlink_rcv_skb+0x130/0x360 [ 451.026899][ T10] netlink_unicast+0x449/0x710 [ 451.026899][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.026899][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.026899][ T10] ___sys_sendmsg+0xee/0x170 [ 451.026899][ T10] __sys_sendmsg+0xcd/0x170 [ 451.026899][ T10] do_syscall_64+0xc6/0x1e0 [ 451.026899][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.026899][ T10] [ 451.028625][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 451.028922][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 451.028922][ T10] netdev_get_by_index+0x5e/0x80 [ 451.028922][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.028922][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.028922][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.028922][ T10] ipv6_add_addr+0x411/0x2000 [ 451.028922][ T10] inet6_addr_add+0x30e/0xa40 [ 451.028922][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.028922][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.028922][ T10] netlink_rcv_skb+0x130/0x360 [ 451.028922][ T10] netlink_unicast+0x449/0x710 [ 451.028922][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.028922][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.028922][ T10] ___sys_sendmsg+0xee/0x170 [ 451.028922][ T10] __sys_sendmsg+0xcd/0x170 [ 451.028922][ T10] do_syscall_64+0xc6/0x1e0 [ 451.028922][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.028922][ T10] [ 451.030934][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 451.030934][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.030934][ T10] ipv6_find_idev+0x102/0x170 [ 451.030934][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.030934][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.030934][ T10] netlink_rcv_skb+0x130/0x360 [ 451.030934][ T10] netlink_unicast+0x449/0x710 [ 451.030934][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.030934][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.030934][ T10] ___sys_sendmsg+0xee/0x170 [ 451.030934][ T10] __sys_sendmsg+0xcd/0x170 [ 451.030934][ T10] do_syscall_64+0xc6/0x1e0 [ 451.030934][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.030934][ T10] [ 451.032481][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 451.032481][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.032481][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.032481][ T10] ipv6_find_idev+0x102/0x170 [ 451.032481][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.032481][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.032481][ T10] netlink_rcv_skb+0x130/0x360 [ 451.032481][ T10] netlink_unicast+0x449/0x710 [ 451.032481][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.032481][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.032481][ T10] ___sys_sendmsg+0xee/0x170 [ 451.032481][ T10] __sys_sendmsg+0xcd/0x170 [ 451.032481][ T10] do_syscall_64+0xc6/0x1e0 [ 451.032481][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.032481][ T10] [ 451.034216][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 451.034502][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 451.034502][ T10] netdev_get_by_index+0x5e/0x80 [ 451.034502][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.034502][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.034502][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.034502][ T10] ipv6_add_addr+0x411/0x2000 [ 451.034502][ T10] inet6_addr_add+0x30e/0xa40 [ 451.034502][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.034502][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.034502][ T10] netlink_rcv_skb+0x130/0x360 [ 451.034502][ T10] netlink_unicast+0x449/0x710 [ 451.034502][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.034502][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.034502][ T10] ___sys_sendmsg+0xee/0x170 [ 451.034502][ T10] __sys_sendmsg+0xcd/0x170 [ 451.034502][ T10] do_syscall_64+0xc6/0x1e0 [ 451.034502][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.034502][ T10] [ 451.036519][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 451.036519][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.036519][ T10] ipv6_find_idev+0x102/0x170 [ 451.036519][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.036519][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.036519][ T10] netlink_rcv_skb+0x130/0x360 [ 451.036519][ T10] netlink_unicast+0x449/0x710 [ 451.036519][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.036519][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.036519][ T10] ___sys_sendmsg+0xee/0x170 [ 451.036519][ T10] __sys_sendmsg+0xcd/0x170 [ 451.036519][ T10] do_syscall_64+0xc6/0x1e0 [ 451.036519][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.036519][ T10] [ 451.038069][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 451.038069][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.038069][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.038069][ T10] ipv6_find_idev+0x102/0x170 [ 451.038069][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.038069][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.038069][ T10] netlink_rcv_skb+0x130/0x360 [ 451.038069][ T10] netlink_unicast+0x449/0x710 [ 451.038069][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.038069][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.038069][ T10] ___sys_sendmsg+0xee/0x170 [ 451.038069][ T10] __sys_sendmsg+0xcd/0x170 [ 451.038069][ T10] do_syscall_64+0xc6/0x1e0 [ 451.038069][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.038069][ T10] [ 451.039775][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 451.040046][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 451.040046][ T10] netdev_get_by_index+0x5e/0x80 [ 451.040046][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.040046][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.040046][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.040046][ T10] ipv6_add_addr+0x411/0x2000 [ 451.040046][ T10] inet6_addr_add+0x30e/0xa40 [ 451.040046][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.040046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.040046][ T10] netlink_rcv_skb+0x130/0x360 [ 451.040046][ T10] netlink_unicast+0x449/0x710 [ 451.040046][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.040046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.040046][ T10] ___sys_sendmsg+0xee/0x170 [ 451.040046][ T10] __sys_sendmsg+0xcd/0x170 [ 451.040046][ T10] do_syscall_64+0xc6/0x1e0 [ 451.040046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.040046][ T10] [ 451.042044][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 451.042044][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.042044][ T10] ipv6_find_idev+0x102/0x170 [ 451.042044][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.042044][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.042044][ T10] netlink_rcv_skb+0x130/0x360 [ 451.042044][ T10] netlink_unicast+0x449/0x710 [ 451.042044][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.042044][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.042044][ T10] ___sys_sendmsg+0xee/0x170 [ 451.042044][ T10] __sys_sendmsg+0xcd/0x170 [ 451.042044][ T10] do_syscall_64+0xc6/0x1e0 [ 451.042044][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.042044][ T10] [ 451.043580][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 451.043580][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.043580][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.043580][ T10] ipv6_find_idev+0x102/0x170 [ 451.043580][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.043580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.043580][ T10] netlink_rcv_skb+0x130/0x360 [ 451.043580][ T10] netlink_unicast+0x449/0x710 [ 451.043580][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.043580][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.043580][ T10] ___sys_sendmsg+0xee/0x170 [ 451.043580][ T10] __sys_sendmsg+0xcd/0x170 [ 451.043580][ T10] do_syscall_64+0xc6/0x1e0 [ 451.043580][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.043580][ T10] [ 451.045689][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 451.046327][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 451.046327][ T10] netdev_get_by_index+0x5e/0x80 [ 451.046327][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.046327][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.046327][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.046327][ T10] ipv6_add_addr+0x411/0x2000 [ 451.046327][ T10] inet6_addr_add+0x30e/0xa40 [ 451.046327][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.046327][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.046327][ T10] netlink_rcv_skb+0x130/0x360 [ 451.046327][ T10] netlink_unicast+0x449/0x710 [ 451.046327][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.046327][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.046327][ T10] ___sys_sendmsg+0xee/0x170 [ 451.046327][ T10] __sys_sendmsg+0xcd/0x170 [ 451.046327][ T10] do_syscall_64+0xc6/0x1e0 [ 451.046327][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.046327][ T10] [ 451.048331][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 451.048331][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.048331][ T10] ipv6_find_idev+0x102/0x170 [ 451.048331][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.048331][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.048331][ T10] netlink_rcv_skb+0x130/0x360 [ 451.048331][ T10] netlink_unicast+0x449/0x710 [ 451.048331][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.048331][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.048331][ T10] ___sys_sendmsg+0xee/0x170 [ 451.048331][ T10] __sys_sendmsg+0xcd/0x170 [ 451.048331][ T10] do_syscall_64+0xc6/0x1e0 [ 451.048331][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.048331][ T10] [ 451.049888][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 451.049888][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.049888][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.049888][ T10] ipv6_find_idev+0x102/0x170 [ 451.049888][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.049888][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.049888][ T10] netlink_rcv_skb+0x130/0x360 [ 451.049888][ T10] netlink_unicast+0x449/0x710 [ 451.049888][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.049888][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.049888][ T10] ___sys_sendmsg+0xee/0x170 [ 451.049888][ T10] __sys_sendmsg+0xcd/0x170 [ 451.049888][ T10] do_syscall_64+0xc6/0x1e0 [ 451.049888][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.049888][ T10] [ 451.051613][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 451.051949][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 451.051949][ T10] netdev_get_by_index+0x5e/0x80 [ 451.051949][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.051949][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.051949][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.051949][ T10] ipv6_add_addr+0x411/0x2000 [ 451.051949][ T10] inet6_addr_add+0x30e/0xa40 [ 451.051949][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.051949][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.051949][ T10] netlink_rcv_skb+0x130/0x360 [ 451.051949][ T10] netlink_unicast+0x449/0x710 [ 451.051949][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.051949][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.051949][ T10] ___sys_sendmsg+0xee/0x170 [ 451.051949][ T10] __sys_sendmsg+0xcd/0x170 [ 451.051949][ T10] do_syscall_64+0xc6/0x1e0 [ 451.051949][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.051949][ T10] [ 451.053977][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 451.053977][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.053977][ T10] ipv6_find_idev+0x102/0x170 [ 451.053977][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.053977][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.053977][ T10] netlink_rcv_skb+0x130/0x360 [ 451.053977][ T10] netlink_unicast+0x449/0x710 [ 451.053977][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.053977][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.053977][ T10] ___sys_sendmsg+0xee/0x170 [ 451.053977][ T10] __sys_sendmsg+0xcd/0x170 [ 451.053977][ T10] do_syscall_64+0xc6/0x1e0 [ 451.053977][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.053977][ T10] [ 451.055520][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 451.055520][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.055520][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.055520][ T10] ipv6_find_idev+0x102/0x170 [ 451.055520][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.055520][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.055520][ T10] netlink_rcv_skb+0x130/0x360 [ 451.055520][ T10] netlink_unicast+0x449/0x710 [ 451.055520][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.055520][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.055520][ T10] ___sys_sendmsg+0xee/0x170 [ 451.055520][ T10] __sys_sendmsg+0xcd/0x170 [ 451.055520][ T10] do_syscall_64+0xc6/0x1e0 [ 451.055520][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.055520][ T10] [ 451.057658][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 451.058034][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 451.058034][ T10] netdev_get_by_index+0x5e/0x80 [ 451.058034][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.058034][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.058034][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.058034][ T10] ipv6_add_addr+0x411/0x2000 [ 451.058034][ T10] inet6_addr_add+0x30e/0xa40 [ 451.058034][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.058034][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.058034][ T10] netlink_rcv_skb+0x130/0x360 [ 451.058034][ T10] netlink_unicast+0x449/0x710 [ 451.058034][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.058034][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.058034][ T10] ___sys_sendmsg+0xee/0x170 [ 451.058034][ T10] __sys_sendmsg+0xcd/0x170 [ 451.058034][ T10] do_syscall_64+0xc6/0x1e0 [ 451.058034][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.058034][ T10] [ 451.060163][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 451.060163][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.060163][ T10] ipv6_find_idev+0x102/0x170 [ 451.060163][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.060163][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.060163][ T10] netlink_rcv_skb+0x130/0x360 [ 451.060163][ T10] netlink_unicast+0x449/0x710 [ 451.060163][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.060163][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.060163][ T10] ___sys_sendmsg+0xee/0x170 [ 451.060163][ T10] __sys_sendmsg+0xcd/0x170 [ 451.060163][ T10] do_syscall_64+0xc6/0x1e0 [ 451.060163][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.060163][ T10] [ 451.061903][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 451.061903][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.061903][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.061903][ T10] ipv6_find_idev+0x102/0x170 [ 451.061903][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.061903][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.061903][ T10] netlink_rcv_skb+0x130/0x360 [ 451.061903][ T10] netlink_unicast+0x449/0x710 [ 451.061903][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.061903][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.061903][ T10] ___sys_sendmsg+0xee/0x170 [ 451.061903][ T10] __sys_sendmsg+0xcd/0x170 [ 451.061903][ T10] do_syscall_64+0xc6/0x1e0 [ 451.061903][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.061903][ T10] [ 451.063872][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 451.064192][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 451.064192][ T10] netdev_get_by_index+0x5e/0x80 [ 451.064192][ T10] fib6_nh_init+0x3d8/0x15b0 [ 451.064192][ T10] ip6_route_info_create+0xf18/0x17d0 [ 451.064192][ T10] addrconf_f6i_alloc+0x244/0x410 [ 451.064192][ T10] ipv6_add_addr+0x411/0x2000 [ 451.064192][ T10] inet6_addr_add+0x30e/0xa40 [ 451.064192][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 451.064192][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.064192][ T10] netlink_rcv_skb+0x130/0x360 [ 451.064192][ T10] netlink_unicast+0x449/0x710 [ 451.064192][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.064192][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.064192][ T10] ___sys_sendmsg+0xee/0x170 [ 451.064192][ T10] __sys_sendmsg+0xcd/0x170 [ 451.064192][ T10] do_syscall_64+0xc6/0x1e0 [ 451.064192][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.064192][ T10] [ 451.066393][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 451.066393][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 451.066393][ T10] ipv6_find_idev+0x102/0x170 [ 451.066393][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.066393][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.066393][ T10] netlink_rcv_skb+0x130/0x360 [ 451.066393][ T10] netlink_unicast+0x449/0x710 [ 451.066393][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.066393][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.066393][ T10] ___sys_sendmsg+0xee/0x170 [ 451.066393][ T10] __sys_sendmsg+0xcd/0x170 [ 451.066393][ T10] do_syscall_64+0xc6/0x1e0 [ 451.066393][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.066393][ T10] [ 451.068123][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 451.068123][ T10] neigh_parms_alloc+0x1e5/0x510 [ 451.068123][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 451.068123][ T10] ipv6_find_idev+0x102/0x170 [ 451.068123][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 451.068123][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 451.068123][ T10] netlink_rcv_skb+0x130/0x360 [ 451.068123][ T10] netlink_unicast+0x449/0x710 [ 451.068123][ T10] netlink_sendmsg+0x723/0xbe0 [ 451.068123][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 451.068123][ T10] ___sys_sendmsg+0xee/0x170 [ 451.068123][ T10] __sys_sendmsg+0xcd/0x170 [ 451.068123][ T10] do_syscall_64+0xc6/0x1e0 [ 451.068123][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 451.068123][ T10] [ 461.198909][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 461.199642][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 461.199642][ T10] netdev_get_by_index+0x5e/0x80 [ 461.199642][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.199642][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.199642][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.199642][ T10] ipv6_add_addr+0x411/0x2000 [ 461.199642][ T10] inet6_addr_add+0x30e/0xa40 [ 461.199642][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.199642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.199642][ T10] netlink_rcv_skb+0x130/0x360 [ 461.199642][ T10] netlink_unicast+0x449/0x710 [ 461.199642][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.199642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.199642][ T10] ___sys_sendmsg+0xee/0x170 [ 461.199642][ T10] __sys_sendmsg+0xcd/0x170 [ 461.199642][ T10] do_syscall_64+0xc6/0x1e0 [ 461.199642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.199642][ T10] [ 461.228596][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 461.228596][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.228596][ T10] ipv6_find_idev+0x102/0x170 [ 461.228596][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.228596][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.228596][ T10] netlink_rcv_skb+0x130/0x360 [ 461.228596][ T10] netlink_unicast+0x449/0x710 [ 461.228596][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.228596][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.228596][ T10] ___sys_sendmsg+0xee/0x170 [ 461.228596][ T10] __sys_sendmsg+0xcd/0x170 [ 461.228596][ T10] do_syscall_64+0xc6/0x1e0 [ 461.228596][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.228596][ T10] [ 461.233640][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 461.233640][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.233640][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.233640][ T10] ipv6_find_idev+0x102/0x170 [ 461.233640][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.233640][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.233640][ T10] netlink_rcv_skb+0x130/0x360 [ 461.233640][ T10] netlink_unicast+0x449/0x710 [ 461.233640][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.233640][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.233640][ T10] ___sys_sendmsg+0xee/0x170 [ 461.233640][ T10] __sys_sendmsg+0xcd/0x170 [ 461.233640][ T10] do_syscall_64+0xc6/0x1e0 [ 461.233640][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.233640][ T10] [ 461.239189][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 461.240320][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 461.240320][ T10] netdev_get_by_index+0x5e/0x80 [ 461.240320][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.240320][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.240320][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.240320][ T10] ipv6_add_addr+0x411/0x2000 [ 461.240320][ T10] inet6_addr_add+0x30e/0xa40 [ 461.240320][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.240320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.240320][ T10] netlink_rcv_skb+0x130/0x360 [ 461.240320][ T10] netlink_unicast+0x449/0x710 [ 461.240320][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.240320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.240320][ T10] ___sys_sendmsg+0xee/0x170 [ 461.240320][ T10] __sys_sendmsg+0xcd/0x170 [ 461.240320][ T10] do_syscall_64+0xc6/0x1e0 [ 461.240320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.240320][ T10] [ 461.250815][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 461.250815][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.250815][ T10] ipv6_find_idev+0x102/0x170 [ 461.250815][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.250815][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.250815][ T10] netlink_rcv_skb+0x130/0x360 [ 461.250815][ T10] netlink_unicast+0x449/0x710 [ 461.250815][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.250815][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.250815][ T10] ___sys_sendmsg+0xee/0x170 [ 461.250815][ T10] __sys_sendmsg+0xcd/0x170 [ 461.250815][ T10] do_syscall_64+0xc6/0x1e0 [ 461.250815][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.250815][ T10] [ 461.255793][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 461.255793][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.255793][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.255793][ T10] ipv6_find_idev+0x102/0x170 [ 461.255793][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.255793][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.255793][ T10] netlink_rcv_skb+0x130/0x360 [ 461.255793][ T10] netlink_unicast+0x449/0x710 [ 461.255793][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.255793][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.255793][ T10] ___sys_sendmsg+0xee/0x170 [ 461.255793][ T10] __sys_sendmsg+0xcd/0x170 [ 461.255793][ T10] do_syscall_64+0xc6/0x1e0 [ 461.255793][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.255793][ T10] [ 461.276856][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 461.278046][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 461.278046][ T10] netdev_get_by_index+0x5e/0x80 [ 461.278046][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.278046][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.278046][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.278046][ T10] ipv6_add_addr+0x411/0x2000 [ 461.278046][ T10] inet6_addr_add+0x30e/0xa40 [ 461.278046][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.278046][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.278046][ T10] netlink_rcv_skb+0x130/0x360 [ 461.278046][ T10] netlink_unicast+0x449/0x710 [ 461.278046][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.278046][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.278046][ T10] ___sys_sendmsg+0xee/0x170 [ 461.278046][ T10] __sys_sendmsg+0xcd/0x170 [ 461.278046][ T10] do_syscall_64+0xc6/0x1e0 [ 461.278046][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.278046][ T10] [ 461.284802][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 461.284802][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.284802][ T10] ipv6_find_idev+0x102/0x170 [ 461.284802][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.284802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.284802][ T10] netlink_rcv_skb+0x130/0x360 [ 461.284802][ T10] netlink_unicast+0x449/0x710 [ 461.284802][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.284802][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.284802][ T10] ___sys_sendmsg+0xee/0x170 [ 461.284802][ T10] __sys_sendmsg+0xcd/0x170 [ 461.284802][ T10] do_syscall_64+0xc6/0x1e0 [ 461.284802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.284802][ T10] [ 461.289942][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 461.289942][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.289942][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.289942][ T10] ipv6_find_idev+0x102/0x170 [ 461.289942][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.289942][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.289942][ T10] netlink_rcv_skb+0x130/0x360 [ 461.289942][ T10] netlink_unicast+0x449/0x710 [ 461.289942][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.289942][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.289942][ T10] ___sys_sendmsg+0xee/0x170 [ 461.289942][ T10] __sys_sendmsg+0xcd/0x170 [ 461.289942][ T10] do_syscall_64+0xc6/0x1e0 [ 461.289942][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.289942][ T10] [ 461.303485][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 461.304350][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 461.304350][ T10] netdev_get_by_index+0x5e/0x80 [ 461.304350][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.304350][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.304350][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.304350][ T10] ipv6_add_addr+0x411/0x2000 [ 461.304350][ T10] inet6_addr_add+0x30e/0xa40 [ 461.304350][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.304350][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.304350][ T10] netlink_rcv_skb+0x130/0x360 [ 461.304350][ T10] netlink_unicast+0x449/0x710 [ 461.304350][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.304350][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.304350][ T10] ___sys_sendmsg+0xee/0x170 [ 461.304350][ T10] __sys_sendmsg+0xcd/0x170 [ 461.304350][ T10] do_syscall_64+0xc6/0x1e0 [ 461.304350][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.304350][ T10] [ 461.310799][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 461.310799][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.310799][ T10] ipv6_find_idev+0x102/0x170 [ 461.310799][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.310799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.310799][ T10] netlink_rcv_skb+0x130/0x360 [ 461.310799][ T10] netlink_unicast+0x449/0x710 [ 461.310799][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.310799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.310799][ T10] ___sys_sendmsg+0xee/0x170 [ 461.310799][ T10] __sys_sendmsg+0xcd/0x170 [ 461.310799][ T10] do_syscall_64+0xc6/0x1e0 [ 461.310799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.310799][ T10] [ 461.316058][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 461.316058][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.316058][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.316058][ T10] ipv6_find_idev+0x102/0x170 [ 461.316058][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.316058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.316058][ T10] netlink_rcv_skb+0x130/0x360 [ 461.316058][ T10] netlink_unicast+0x449/0x710 [ 461.316058][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.316058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.316058][ T10] ___sys_sendmsg+0xee/0x170 [ 461.316058][ T10] __sys_sendmsg+0xcd/0x170 [ 461.316058][ T10] do_syscall_64+0xc6/0x1e0 [ 461.316058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.316058][ T10] [ 461.321856][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 461.322935][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 461.322935][ T10] netdev_get_by_index+0x5e/0x80 [ 461.322935][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.322935][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.322935][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.322935][ T10] ipv6_add_addr+0x411/0x2000 [ 461.322935][ T10] inet6_addr_add+0x30e/0xa40 [ 461.322935][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.322935][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.322935][ T10] netlink_rcv_skb+0x130/0x360 [ 461.322935][ T10] netlink_unicast+0x449/0x710 [ 461.322935][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.322935][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.322935][ T10] ___sys_sendmsg+0xee/0x170 [ 461.322935][ T10] __sys_sendmsg+0xcd/0x170 [ 461.322935][ T10] do_syscall_64+0xc6/0x1e0 [ 461.322935][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.322935][ T10] [ 461.331059][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 461.331059][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.331059][ T10] ipv6_find_idev+0x102/0x170 [ 461.331059][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.331059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.331059][ T10] netlink_rcv_skb+0x130/0x360 [ 461.331059][ T10] netlink_unicast+0x449/0x710 [ 461.331059][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.331059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.331059][ T10] ___sys_sendmsg+0xee/0x170 [ 461.331059][ T10] __sys_sendmsg+0xcd/0x170 [ 461.331059][ T10] do_syscall_64+0xc6/0x1e0 [ 461.331059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.331059][ T10] [ 461.337665][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 461.337665][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.337665][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.337665][ T10] ipv6_find_idev+0x102/0x170 [ 461.337665][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.337665][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.337665][ T10] netlink_rcv_skb+0x130/0x360 [ 461.337665][ T10] netlink_unicast+0x449/0x710 [ 461.337665][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.337665][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.337665][ T10] ___sys_sendmsg+0xee/0x170 [ 461.337665][ T10] __sys_sendmsg+0xcd/0x170 [ 461.337665][ T10] do_syscall_64+0xc6/0x1e0 [ 461.337665][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.337665][ T10] [ 461.353303][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 461.354157][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 461.354157][ T10] netdev_get_by_index+0x5e/0x80 [ 461.354157][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.354157][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.354157][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.354157][ T10] ipv6_add_addr+0x411/0x2000 [ 461.354157][ T10] inet6_addr_add+0x30e/0xa40 [ 461.354157][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.354157][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.354157][ T10] netlink_rcv_skb+0x130/0x360 [ 461.354157][ T10] netlink_unicast+0x449/0x710 [ 461.354157][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.354157][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.354157][ T10] ___sys_sendmsg+0xee/0x170 [ 461.354157][ T10] __sys_sendmsg+0xcd/0x170 [ 461.354157][ T10] do_syscall_64+0xc6/0x1e0 [ 461.354157][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.354157][ T10] [ 461.359824][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 461.359824][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.359824][ T10] ipv6_find_idev+0x102/0x170 [ 461.359824][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.359824][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.359824][ T10] netlink_rcv_skb+0x130/0x360 [ 461.359824][ T10] netlink_unicast+0x449/0x710 [ 461.359824][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.359824][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.359824][ T10] ___sys_sendmsg+0xee/0x170 [ 461.359824][ T10] __sys_sendmsg+0xcd/0x170 [ 461.359824][ T10] do_syscall_64+0xc6/0x1e0 [ 461.359824][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.359824][ T10] [ 461.365320][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 461.365320][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.365320][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.365320][ T10] ipv6_find_idev+0x102/0x170 [ 461.365320][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.365320][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.365320][ T10] netlink_rcv_skb+0x130/0x360 [ 461.365320][ T10] netlink_unicast+0x449/0x710 [ 461.365320][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.365320][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.365320][ T10] ___sys_sendmsg+0xee/0x170 [ 461.365320][ T10] __sys_sendmsg+0xcd/0x170 [ 461.365320][ T10] do_syscall_64+0xc6/0x1e0 [ 461.365320][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.365320][ T10] [ 461.372889][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 461.373611][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 461.373611][ T10] netdev_get_by_index+0x5e/0x80 [ 461.373611][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.373611][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.373611][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.373611][ T10] ipv6_add_addr+0x411/0x2000 [ 461.373611][ T10] inet6_addr_add+0x30e/0xa40 [ 461.373611][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.373611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.373611][ T10] netlink_rcv_skb+0x130/0x360 [ 461.373611][ T10] netlink_unicast+0x449/0x710 [ 461.373611][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.373611][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.373611][ T10] ___sys_sendmsg+0xee/0x170 [ 461.373611][ T10] __sys_sendmsg+0xcd/0x170 [ 461.373611][ T10] do_syscall_64+0xc6/0x1e0 [ 461.373611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.373611][ T10] [ 461.378522][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 461.378522][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.378522][ T10] ipv6_find_idev+0x102/0x170 [ 461.378522][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.378522][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.378522][ T10] netlink_rcv_skb+0x130/0x360 [ 461.378522][ T10] netlink_unicast+0x449/0x710 [ 461.378522][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.378522][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.378522][ T10] ___sys_sendmsg+0xee/0x170 [ 461.378522][ T10] __sys_sendmsg+0xcd/0x170 [ 461.378522][ T10] do_syscall_64+0xc6/0x1e0 [ 461.378522][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.378522][ T10] [ 461.382273][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 461.382273][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.382273][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.382273][ T10] ipv6_find_idev+0x102/0x170 [ 461.382273][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.382273][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.382273][ T10] netlink_rcv_skb+0x130/0x360 [ 461.382273][ T10] netlink_unicast+0x449/0x710 [ 461.382273][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.382273][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.382273][ T10] ___sys_sendmsg+0xee/0x170 [ 461.382273][ T10] __sys_sendmsg+0xcd/0x170 [ 461.382273][ T10] do_syscall_64+0xc6/0x1e0 [ 461.382273][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.382273][ T10] [ 461.386379][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 461.387092][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 461.387092][ T10] netdev_get_by_index+0x5e/0x80 [ 461.387092][ T10] fib6_nh_init+0x3d8/0x15b0 [ 461.387092][ T10] ip6_route_info_create+0xf18/0x17d0 [ 461.387092][ T10] addrconf_f6i_alloc+0x244/0x410 [ 461.387092][ T10] ipv6_add_addr+0x411/0x2000 [ 461.387092][ T10] inet6_addr_add+0x30e/0xa40 [ 461.387092][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 461.387092][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.387092][ T10] netlink_rcv_skb+0x130/0x360 [ 461.387092][ T10] netlink_unicast+0x449/0x710 [ 461.387092][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.387092][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.387092][ T10] ___sys_sendmsg+0xee/0x170 [ 461.387092][ T10] __sys_sendmsg+0xcd/0x170 [ 461.387092][ T10] do_syscall_64+0xc6/0x1e0 [ 461.387092][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.387092][ T10] [ 461.391501][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 461.391501][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 461.391501][ T10] ipv6_find_idev+0x102/0x170 [ 461.391501][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.391501][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.391501][ T10] netlink_rcv_skb+0x130/0x360 [ 461.391501][ T10] netlink_unicast+0x449/0x710 [ 461.391501][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.391501][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.391501][ T10] ___sys_sendmsg+0xee/0x170 [ 461.391501][ T10] __sys_sendmsg+0xcd/0x170 [ 461.391501][ T10] do_syscall_64+0xc6/0x1e0 [ 461.391501][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.391501][ T10] [ 461.394991][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 461.394991][ T10] neigh_parms_alloc+0x1e5/0x510 [ 461.394991][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 461.394991][ T10] ipv6_find_idev+0x102/0x170 [ 461.394991][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 461.394991][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 461.394991][ T10] netlink_rcv_skb+0x130/0x360 [ 461.394991][ T10] netlink_unicast+0x449/0x710 [ 461.394991][ T10] netlink_sendmsg+0x723/0xbe0 [ 461.394991][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 461.394991][ T10] ___sys_sendmsg+0xee/0x170 [ 461.394991][ T10] __sys_sendmsg+0xcd/0x170 [ 461.394991][ T10] do_syscall_64+0xc6/0x1e0 [ 461.394991][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 461.394991][ T10] [ 471.187756][ C1] hrtimer: interrupt took 3778874 ns [ 471.579281][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 471.580323][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 471.580323][ T10] netdev_get_by_index+0x5e/0x80 [ 471.580323][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.580323][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.580323][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.580323][ T10] ipv6_add_addr+0x411/0x2000 [ 471.580323][ T10] inet6_addr_add+0x30e/0xa40 [ 471.580323][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.580323][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.580323][ T10] netlink_rcv_skb+0x130/0x360 [ 471.580323][ T10] netlink_unicast+0x449/0x710 [ 471.580323][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.580323][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.580323][ T10] ___sys_sendmsg+0xee/0x170 [ 471.580323][ T10] __sys_sendmsg+0xcd/0x170 [ 471.580323][ T10] do_syscall_64+0xc6/0x1e0 [ 471.580323][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.580323][ T10] [ 471.586407][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 471.586407][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.586407][ T10] ipv6_find_idev+0x102/0x170 [ 471.586407][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.586407][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.586407][ T10] netlink_rcv_skb+0x130/0x360 [ 471.586407][ T10] netlink_unicast+0x449/0x710 [ 471.586407][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.586407][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.586407][ T10] ___sys_sendmsg+0xee/0x170 [ 471.586407][ T10] __sys_sendmsg+0xcd/0x170 [ 471.586407][ T10] do_syscall_64+0xc6/0x1e0 [ 471.586407][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.586407][ T10] [ 471.595290][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 471.595290][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.595290][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.595290][ T10] ipv6_find_idev+0x102/0x170 [ 471.595290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.595290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.595290][ T10] netlink_rcv_skb+0x130/0x360 [ 471.595290][ T10] netlink_unicast+0x449/0x710 [ 471.595290][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.595290][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.595290][ T10] ___sys_sendmsg+0xee/0x170 [ 471.595290][ T10] __sys_sendmsg+0xcd/0x170 [ 471.595290][ T10] do_syscall_64+0xc6/0x1e0 [ 471.595290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.595290][ T10] [ 471.606364][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 471.607275][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 471.607275][ T10] netdev_get_by_index+0x5e/0x80 [ 471.607275][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.607275][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.607275][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.607275][ T10] ipv6_add_addr+0x411/0x2000 [ 471.607275][ T10] inet6_addr_add+0x30e/0xa40 [ 471.607275][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.607275][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.607275][ T10] netlink_rcv_skb+0x130/0x360 [ 471.607275][ T10] netlink_unicast+0x449/0x710 [ 471.607275][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.607275][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.607275][ T10] ___sys_sendmsg+0xee/0x170 [ 471.607275][ T10] __sys_sendmsg+0xcd/0x170 [ 471.607275][ T10] do_syscall_64+0xc6/0x1e0 [ 471.607275][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.607275][ T10] [ 471.614446][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 471.614446][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.614446][ T10] ipv6_find_idev+0x102/0x170 [ 471.614446][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.614446][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.614446][ T10] netlink_rcv_skb+0x130/0x360 [ 471.614446][ T10] netlink_unicast+0x449/0x710 [ 471.614446][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.614446][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.614446][ T10] ___sys_sendmsg+0xee/0x170 [ 471.614446][ T10] __sys_sendmsg+0xcd/0x170 [ 471.614446][ T10] do_syscall_64+0xc6/0x1e0 [ 471.614446][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.614446][ T10] [ 471.619663][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 471.619663][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.619663][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.619663][ T10] ipv6_find_idev+0x102/0x170 [ 471.619663][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.619663][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.619663][ T10] netlink_rcv_skb+0x130/0x360 [ 471.619663][ T10] netlink_unicast+0x449/0x710 [ 471.619663][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.619663][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.619663][ T10] ___sys_sendmsg+0xee/0x170 [ 471.619663][ T10] __sys_sendmsg+0xcd/0x170 [ 471.619663][ T10] do_syscall_64+0xc6/0x1e0 [ 471.619663][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.619663][ T10] [ 471.639602][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 471.640565][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 471.640565][ T10] netdev_get_by_index+0x5e/0x80 [ 471.640565][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.640565][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.640565][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.640565][ T10] ipv6_add_addr+0x411/0x2000 [ 471.640565][ T10] inet6_addr_add+0x30e/0xa40 [ 471.640565][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.640565][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.640565][ T10] netlink_rcv_skb+0x130/0x360 [ 471.640565][ T10] netlink_unicast+0x449/0x710 [ 471.640565][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.640565][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.640565][ T10] ___sys_sendmsg+0xee/0x170 [ 471.640565][ T10] __sys_sendmsg+0xcd/0x170 [ 471.640565][ T10] do_syscall_64+0xc6/0x1e0 [ 471.640565][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.640565][ T10] [ 471.647328][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 471.647328][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.647328][ T10] ipv6_find_idev+0x102/0x170 [ 471.647328][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.647328][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.647328][ T10] netlink_rcv_skb+0x130/0x360 [ 471.647328][ T10] netlink_unicast+0x449/0x710 [ 471.647328][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.647328][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.647328][ T10] ___sys_sendmsg+0xee/0x170 [ 471.647328][ T10] __sys_sendmsg+0xcd/0x170 [ 471.647328][ T10] do_syscall_64+0xc6/0x1e0 [ 471.647328][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.647328][ T10] [ 471.652642][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 471.652642][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.652642][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.652642][ T10] ipv6_find_idev+0x102/0x170 [ 471.652642][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.652642][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.652642][ T10] netlink_rcv_skb+0x130/0x360 [ 471.652642][ T10] netlink_unicast+0x449/0x710 [ 471.652642][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.652642][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.652642][ T10] ___sys_sendmsg+0xee/0x170 [ 471.652642][ T10] __sys_sendmsg+0xcd/0x170 [ 471.652642][ T10] do_syscall_64+0xc6/0x1e0 [ 471.652642][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.652642][ T10] [ 471.667374][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 471.668324][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 471.668324][ T10] netdev_get_by_index+0x5e/0x80 [ 471.668324][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.668324][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.668324][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.668324][ T10] ipv6_add_addr+0x411/0x2000 [ 471.668324][ T10] inet6_addr_add+0x30e/0xa40 [ 471.668324][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.668324][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.668324][ T10] netlink_rcv_skb+0x130/0x360 [ 471.668324][ T10] netlink_unicast+0x449/0x710 [ 471.668324][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.668324][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.668324][ T10] ___sys_sendmsg+0xee/0x170 [ 471.668324][ T10] __sys_sendmsg+0xcd/0x170 [ 471.668324][ T10] do_syscall_64+0xc6/0x1e0 [ 471.668324][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.668324][ T10] [ 471.695823][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 471.695823][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.695823][ T10] ipv6_find_idev+0x102/0x170 [ 471.695823][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.695823][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.695823][ T10] netlink_rcv_skb+0x130/0x360 [ 471.695823][ T10] netlink_unicast+0x449/0x710 [ 471.695823][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.695823][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.695823][ T10] ___sys_sendmsg+0xee/0x170 [ 471.695823][ T10] __sys_sendmsg+0xcd/0x170 [ 471.695823][ T10] do_syscall_64+0xc6/0x1e0 [ 471.695823][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.695823][ T10] [ 471.699967][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 471.699967][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.699967][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.699967][ T10] ipv6_find_idev+0x102/0x170 [ 471.699967][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.699967][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.699967][ T10] netlink_rcv_skb+0x130/0x360 [ 471.699967][ T10] netlink_unicast+0x449/0x710 [ 471.699967][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.699967][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.699967][ T10] ___sys_sendmsg+0xee/0x170 [ 471.699967][ T10] __sys_sendmsg+0xcd/0x170 [ 471.699967][ T10] do_syscall_64+0xc6/0x1e0 [ 471.699967][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.699967][ T10] [ 471.704514][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 471.707019][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 471.707019][ T10] netdev_get_by_index+0x5e/0x80 [ 471.707019][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.707019][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.707019][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.707019][ T10] ipv6_add_addr+0x411/0x2000 [ 471.707019][ T10] inet6_addr_add+0x30e/0xa40 [ 471.707019][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.707019][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.707019][ T10] netlink_rcv_skb+0x130/0x360 [ 471.707019][ T10] netlink_unicast+0x449/0x710 [ 471.707019][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.707019][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.707019][ T10] ___sys_sendmsg+0xee/0x170 [ 471.707019][ T10] __sys_sendmsg+0xcd/0x170 [ 471.707019][ T10] do_syscall_64+0xc6/0x1e0 [ 471.707019][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.707019][ T10] [ 471.715085][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 471.715085][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.715085][ T10] ipv6_find_idev+0x102/0x170 [ 471.715085][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.715085][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.715085][ T10] netlink_rcv_skb+0x130/0x360 [ 471.715085][ T10] netlink_unicast+0x449/0x710 [ 471.715085][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.715085][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.715085][ T10] ___sys_sendmsg+0xee/0x170 [ 471.715085][ T10] __sys_sendmsg+0xcd/0x170 [ 471.715085][ T10] do_syscall_64+0xc6/0x1e0 [ 471.715085][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.715085][ T10] [ 471.720115][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 471.720115][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.720115][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.720115][ T10] ipv6_find_idev+0x102/0x170 [ 471.720115][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.720115][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.720115][ T10] netlink_rcv_skb+0x130/0x360 [ 471.720115][ T10] netlink_unicast+0x449/0x710 [ 471.720115][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.720115][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.720115][ T10] ___sys_sendmsg+0xee/0x170 [ 471.720115][ T10] __sys_sendmsg+0xcd/0x170 [ 471.720115][ T10] do_syscall_64+0xc6/0x1e0 [ 471.720115][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.720115][ T10] [ 471.732325][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 471.733235][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 471.733235][ T10] netdev_get_by_index+0x5e/0x80 [ 471.733235][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.733235][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.733235][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.733235][ T10] ipv6_add_addr+0x411/0x2000 [ 471.733235][ T10] inet6_addr_add+0x30e/0xa40 [ 471.733235][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.733235][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.733235][ T10] netlink_rcv_skb+0x130/0x360 [ 471.733235][ T10] netlink_unicast+0x449/0x710 [ 471.733235][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.733235][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.733235][ T10] ___sys_sendmsg+0xee/0x170 [ 471.733235][ T10] __sys_sendmsg+0xcd/0x170 [ 471.733235][ T10] do_syscall_64+0xc6/0x1e0 [ 471.733235][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.733235][ T10] [ 471.740146][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 471.740146][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.740146][ T10] ipv6_find_idev+0x102/0x170 [ 471.740146][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.740146][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.740146][ T10] netlink_rcv_skb+0x130/0x360 [ 471.740146][ T10] netlink_unicast+0x449/0x710 [ 471.740146][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.740146][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.740146][ T10] ___sys_sendmsg+0xee/0x170 [ 471.740146][ T10] __sys_sendmsg+0xcd/0x170 [ 471.740146][ T10] do_syscall_64+0xc6/0x1e0 [ 471.740146][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.740146][ T10] [ 471.745908][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 471.745908][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.745908][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.745908][ T10] ipv6_find_idev+0x102/0x170 [ 471.745908][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.745908][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.745908][ T10] netlink_rcv_skb+0x130/0x360 [ 471.745908][ T10] netlink_unicast+0x449/0x710 [ 471.745908][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.745908][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.745908][ T10] ___sys_sendmsg+0xee/0x170 [ 471.745908][ T10] __sys_sendmsg+0xcd/0x170 [ 471.745908][ T10] do_syscall_64+0xc6/0x1e0 [ 471.745908][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.745908][ T10] [ 471.753338][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 471.754505][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 471.754505][ T10] netdev_get_by_index+0x5e/0x80 [ 471.754505][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.754505][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.754505][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.754505][ T10] ipv6_add_addr+0x411/0x2000 [ 471.754505][ T10] inet6_addr_add+0x30e/0xa40 [ 471.754505][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.754505][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.754505][ T10] netlink_rcv_skb+0x130/0x360 [ 471.754505][ T10] netlink_unicast+0x449/0x710 [ 471.754505][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.754505][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.754505][ T10] ___sys_sendmsg+0xee/0x170 [ 471.754505][ T10] __sys_sendmsg+0xcd/0x170 [ 471.754505][ T10] do_syscall_64+0xc6/0x1e0 [ 471.754505][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.754505][ T10] [ 471.762196][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 471.762196][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.762196][ T10] ipv6_find_idev+0x102/0x170 [ 471.762196][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.762196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.762196][ T10] netlink_rcv_skb+0x130/0x360 [ 471.762196][ T10] netlink_unicast+0x449/0x710 [ 471.762196][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.762196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.762196][ T10] ___sys_sendmsg+0xee/0x170 [ 471.762196][ T10] __sys_sendmsg+0xcd/0x170 [ 471.762196][ T10] do_syscall_64+0xc6/0x1e0 [ 471.762196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.762196][ T10] [ 471.767999][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 471.767999][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.767999][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.767999][ T10] ipv6_find_idev+0x102/0x170 [ 471.767999][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.767999][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.767999][ T10] netlink_rcv_skb+0x130/0x360 [ 471.767999][ T10] netlink_unicast+0x449/0x710 [ 471.767999][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.767999][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.767999][ T10] ___sys_sendmsg+0xee/0x170 [ 471.767999][ T10] __sys_sendmsg+0xcd/0x170 [ 471.767999][ T10] do_syscall_64+0xc6/0x1e0 [ 471.767999][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.767999][ T10] [ 471.778626][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 471.780338][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 471.780338][ T10] netdev_get_by_index+0x5e/0x80 [ 471.780338][ T10] fib6_nh_init+0x3d8/0x15b0 [ 471.780338][ T10] ip6_route_info_create+0xf18/0x17d0 [ 471.780338][ T10] addrconf_f6i_alloc+0x244/0x410 [ 471.780338][ T10] ipv6_add_addr+0x411/0x2000 [ 471.780338][ T10] inet6_addr_add+0x30e/0xa40 [ 471.780338][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 471.780338][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.780338][ T10] netlink_rcv_skb+0x130/0x360 [ 471.780338][ T10] netlink_unicast+0x449/0x710 [ 471.780338][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.780338][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.780338][ T10] ___sys_sendmsg+0xee/0x170 [ 471.780338][ T10] __sys_sendmsg+0xcd/0x170 [ 471.780338][ T10] do_syscall_64+0xc6/0x1e0 [ 471.780338][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.780338][ T10] [ 471.788392][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 471.788392][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 471.788392][ T10] ipv6_find_idev+0x102/0x170 [ 471.788392][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.788392][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.788392][ T10] netlink_rcv_skb+0x130/0x360 [ 471.788392][ T10] netlink_unicast+0x449/0x710 [ 471.788392][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.788392][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.788392][ T10] ___sys_sendmsg+0xee/0x170 [ 471.788392][ T10] __sys_sendmsg+0xcd/0x170 [ 471.788392][ T10] do_syscall_64+0xc6/0x1e0 [ 471.788392][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.788392][ T10] [ 471.795567][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 471.795567][ T10] neigh_parms_alloc+0x1e5/0x510 [ 471.795567][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 471.795567][ T10] ipv6_find_idev+0x102/0x170 [ 471.795567][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 471.795567][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 471.795567][ T10] netlink_rcv_skb+0x130/0x360 [ 471.795567][ T10] netlink_unicast+0x449/0x710 [ 471.795567][ T10] netlink_sendmsg+0x723/0xbe0 [ 471.795567][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 471.795567][ T10] ___sys_sendmsg+0xee/0x170 [ 471.795567][ T10] __sys_sendmsg+0xcd/0x170 [ 471.795567][ T10] do_syscall_64+0xc6/0x1e0 [ 471.795567][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 471.795567][ T10] [ 481.846797][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 481.847278][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 481.847278][ T10] netdev_get_by_index+0x5e/0x80 [ 481.847278][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.847278][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.847278][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.847278][ T10] ipv6_add_addr+0x411/0x2000 [ 481.847278][ T10] inet6_addr_add+0x30e/0xa40 [ 481.847278][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.847278][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.847278][ T10] netlink_rcv_skb+0x130/0x360 [ 481.847278][ T10] netlink_unicast+0x449/0x710 [ 481.847278][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.847278][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.847278][ T10] ___sys_sendmsg+0xee/0x170 [ 481.847278][ T10] __sys_sendmsg+0xcd/0x170 [ 481.847278][ T10] do_syscall_64+0xc6/0x1e0 [ 481.847278][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.847278][ T10] [ 481.849306][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 481.849306][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.849306][ T10] ipv6_find_idev+0x102/0x170 [ 481.849306][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.849306][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.849306][ T10] netlink_rcv_skb+0x130/0x360 [ 481.849306][ T10] netlink_unicast+0x449/0x710 [ 481.849306][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.849306][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.849306][ T10] ___sys_sendmsg+0xee/0x170 [ 481.849306][ T10] __sys_sendmsg+0xcd/0x170 [ 481.849306][ T10] do_syscall_64+0xc6/0x1e0 [ 481.849306][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.849306][ T10] [ 481.850841][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 481.850841][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.850841][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.850841][ T10] ipv6_find_idev+0x102/0x170 [ 481.850841][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.850841][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.850841][ T10] netlink_rcv_skb+0x130/0x360 [ 481.850841][ T10] netlink_unicast+0x449/0x710 [ 481.850841][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.850841][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.850841][ T10] ___sys_sendmsg+0xee/0x170 [ 481.850841][ T10] __sys_sendmsg+0xcd/0x170 [ 481.850841][ T10] do_syscall_64+0xc6/0x1e0 [ 481.850841][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.850841][ T10] [ 481.852529][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 481.852818][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 481.852818][ T10] netdev_get_by_index+0x5e/0x80 [ 481.852818][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.852818][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.852818][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.852818][ T10] ipv6_add_addr+0x411/0x2000 [ 481.852818][ T10] inet6_addr_add+0x30e/0xa40 [ 481.852818][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.852818][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.852818][ T10] netlink_rcv_skb+0x130/0x360 [ 481.852818][ T10] netlink_unicast+0x449/0x710 [ 481.852818][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.852818][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.852818][ T10] ___sys_sendmsg+0xee/0x170 [ 481.852818][ T10] __sys_sendmsg+0xcd/0x170 [ 481.852818][ T10] do_syscall_64+0xc6/0x1e0 [ 481.852818][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.852818][ T10] [ 481.854819][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 481.854819][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.854819][ T10] ipv6_find_idev+0x102/0x170 [ 481.854819][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.854819][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.854819][ T10] netlink_rcv_skb+0x130/0x360 [ 481.854819][ T10] netlink_unicast+0x449/0x710 [ 481.854819][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.854819][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.854819][ T10] ___sys_sendmsg+0xee/0x170 [ 481.854819][ T10] __sys_sendmsg+0xcd/0x170 [ 481.854819][ T10] do_syscall_64+0xc6/0x1e0 [ 481.854819][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.854819][ T10] [ 481.856346][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 481.856346][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.856346][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.856346][ T10] ipv6_find_idev+0x102/0x170 [ 481.856346][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.856346][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.856346][ T10] netlink_rcv_skb+0x130/0x360 [ 481.856346][ T10] netlink_unicast+0x449/0x710 [ 481.856346][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.856346][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.856346][ T10] ___sys_sendmsg+0xee/0x170 [ 481.856346][ T10] __sys_sendmsg+0xcd/0x170 [ 481.856346][ T10] do_syscall_64+0xc6/0x1e0 [ 481.856346][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.856346][ T10] [ 481.858018][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 481.858287][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 481.858287][ T10] netdev_get_by_index+0x5e/0x80 [ 481.858287][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.858287][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.858287][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.858287][ T10] ipv6_add_addr+0x411/0x2000 [ 481.858287][ T10] inet6_addr_add+0x30e/0xa40 [ 481.858287][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.858287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.858287][ T10] netlink_rcv_skb+0x130/0x360 [ 481.858287][ T10] netlink_unicast+0x449/0x710 [ 481.858287][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.858287][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.858287][ T10] ___sys_sendmsg+0xee/0x170 [ 481.858287][ T10] __sys_sendmsg+0xcd/0x170 [ 481.858287][ T10] do_syscall_64+0xc6/0x1e0 [ 481.858287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.858287][ T10] [ 481.860288][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 481.860288][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.860288][ T10] ipv6_find_idev+0x102/0x170 [ 481.860288][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.860288][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.860288][ T10] netlink_rcv_skb+0x130/0x360 [ 481.860288][ T10] netlink_unicast+0x449/0x710 [ 481.860288][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.860288][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.860288][ T10] ___sys_sendmsg+0xee/0x170 [ 481.860288][ T10] __sys_sendmsg+0xcd/0x170 [ 481.860288][ T10] do_syscall_64+0xc6/0x1e0 [ 481.860288][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.860288][ T10] [ 481.861813][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 481.861813][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.861813][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.861813][ T10] ipv6_find_idev+0x102/0x170 [ 481.861813][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.861813][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.861813][ T10] netlink_rcv_skb+0x130/0x360 [ 481.861813][ T10] netlink_unicast+0x449/0x710 [ 481.861813][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.861813][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.861813][ T10] ___sys_sendmsg+0xee/0x170 [ 481.861813][ T10] __sys_sendmsg+0xcd/0x170 [ 481.861813][ T10] do_syscall_64+0xc6/0x1e0 [ 481.861813][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.861813][ T10] [ 481.863495][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 481.864208][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 481.864208][ T10] netdev_get_by_index+0x5e/0x80 [ 481.864208][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.864208][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.864208][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.864208][ T10] ipv6_add_addr+0x411/0x2000 [ 481.864208][ T10] inet6_addr_add+0x30e/0xa40 [ 481.864208][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.864208][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.864208][ T10] netlink_rcv_skb+0x130/0x360 [ 481.864208][ T10] netlink_unicast+0x449/0x710 [ 481.864208][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.864208][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.864208][ T10] ___sys_sendmsg+0xee/0x170 [ 481.864208][ T10] __sys_sendmsg+0xcd/0x170 [ 481.864208][ T10] do_syscall_64+0xc6/0x1e0 [ 481.864208][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.864208][ T10] [ 481.866185][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 481.866185][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.866185][ T10] ipv6_find_idev+0x102/0x170 [ 481.866185][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.866185][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.866185][ T10] netlink_rcv_skb+0x130/0x360 [ 481.866185][ T10] netlink_unicast+0x449/0x710 [ 481.866185][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.866185][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.866185][ T10] ___sys_sendmsg+0xee/0x170 [ 481.866185][ T10] __sys_sendmsg+0xcd/0x170 [ 481.866185][ T10] do_syscall_64+0xc6/0x1e0 [ 481.866185][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.866185][ T10] [ 481.867702][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 481.867702][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.867702][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.867702][ T10] ipv6_find_idev+0x102/0x170 [ 481.867702][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.867702][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.867702][ T10] netlink_rcv_skb+0x130/0x360 [ 481.867702][ T10] netlink_unicast+0x449/0x710 [ 481.867702][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.867702][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.867702][ T10] ___sys_sendmsg+0xee/0x170 [ 481.867702][ T10] __sys_sendmsg+0xcd/0x170 [ 481.867702][ T10] do_syscall_64+0xc6/0x1e0 [ 481.867702][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.867702][ T10] [ 481.869533][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 481.869858][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 481.869858][ T10] netdev_get_by_index+0x5e/0x80 [ 481.869858][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.869858][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.869858][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.869858][ T10] ipv6_add_addr+0x411/0x2000 [ 481.869858][ T10] inet6_addr_add+0x30e/0xa40 [ 481.869858][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.869858][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.869858][ T10] netlink_rcv_skb+0x130/0x360 [ 481.869858][ T10] netlink_unicast+0x449/0x710 [ 481.869858][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.869858][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.869858][ T10] ___sys_sendmsg+0xee/0x170 [ 481.869858][ T10] __sys_sendmsg+0xcd/0x170 [ 481.869858][ T10] do_syscall_64+0xc6/0x1e0 [ 481.869858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.869858][ T10] [ 481.872081][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 481.872081][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.872081][ T10] ipv6_find_idev+0x102/0x170 [ 481.872081][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.872081][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.872081][ T10] netlink_rcv_skb+0x130/0x360 [ 481.872081][ T10] netlink_unicast+0x449/0x710 [ 481.872081][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.872081][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.872081][ T10] ___sys_sendmsg+0xee/0x170 [ 481.872081][ T10] __sys_sendmsg+0xcd/0x170 [ 481.872081][ T10] do_syscall_64+0xc6/0x1e0 [ 481.872081][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.872081][ T10] [ 481.873791][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 481.873791][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.873791][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.873791][ T10] ipv6_find_idev+0x102/0x170 [ 481.873791][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.873791][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.873791][ T10] netlink_rcv_skb+0x130/0x360 [ 481.873791][ T10] netlink_unicast+0x449/0x710 [ 481.873791][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.873791][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.873791][ T10] ___sys_sendmsg+0xee/0x170 [ 481.873791][ T10] __sys_sendmsg+0xcd/0x170 [ 481.873791][ T10] do_syscall_64+0xc6/0x1e0 [ 481.873791][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.873791][ T10] [ 481.875696][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 481.875969][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 481.875969][ T10] netdev_get_by_index+0x5e/0x80 [ 481.875969][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.875969][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.875969][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.875969][ T10] ipv6_add_addr+0x411/0x2000 [ 481.875969][ T10] inet6_addr_add+0x30e/0xa40 [ 481.875969][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.875969][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.875969][ T10] netlink_rcv_skb+0x130/0x360 [ 481.875969][ T10] netlink_unicast+0x449/0x710 [ 481.875969][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.875969][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.875969][ T10] ___sys_sendmsg+0xee/0x170 [ 481.875969][ T10] __sys_sendmsg+0xcd/0x170 [ 481.875969][ T10] do_syscall_64+0xc6/0x1e0 [ 481.875969][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.875969][ T10] [ 481.878191][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 481.878191][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.878191][ T10] ipv6_find_idev+0x102/0x170 [ 481.878191][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.878191][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.878191][ T10] netlink_rcv_skb+0x130/0x360 [ 481.878191][ T10] netlink_unicast+0x449/0x710 [ 481.878191][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.878191][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.878191][ T10] ___sys_sendmsg+0xee/0x170 [ 481.878191][ T10] __sys_sendmsg+0xcd/0x170 [ 481.878191][ T10] do_syscall_64+0xc6/0x1e0 [ 481.878191][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.878191][ T10] [ 481.879890][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 481.879890][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.879890][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.879890][ T10] ipv6_find_idev+0x102/0x170 [ 481.879890][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.879890][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.879890][ T10] netlink_rcv_skb+0x130/0x360 [ 481.879890][ T10] netlink_unicast+0x449/0x710 [ 481.879890][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.879890][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.879890][ T10] ___sys_sendmsg+0xee/0x170 [ 481.879890][ T10] __sys_sendmsg+0xcd/0x170 [ 481.879890][ T10] do_syscall_64+0xc6/0x1e0 [ 481.879890][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.879890][ T10] [ 481.881841][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 481.882106][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 481.882106][ T10] netdev_get_by_index+0x5e/0x80 [ 481.882106][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.882106][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.882106][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.882106][ T10] ipv6_add_addr+0x411/0x2000 [ 481.882106][ T10] inet6_addr_add+0x30e/0xa40 [ 481.882106][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.882106][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.882106][ T10] netlink_rcv_skb+0x130/0x360 [ 481.882106][ T10] netlink_unicast+0x449/0x710 [ 481.882106][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.882106][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.882106][ T10] ___sys_sendmsg+0xee/0x170 [ 481.882106][ T10] __sys_sendmsg+0xcd/0x170 [ 481.882106][ T10] do_syscall_64+0xc6/0x1e0 [ 481.882106][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.882106][ T10] [ 481.884326][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 481.884326][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.884326][ T10] ipv6_find_idev+0x102/0x170 [ 481.884326][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.884326][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.884326][ T10] netlink_rcv_skb+0x130/0x360 [ 481.884326][ T10] netlink_unicast+0x449/0x710 [ 481.884326][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.884326][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.884326][ T10] ___sys_sendmsg+0xee/0x170 [ 481.884326][ T10] __sys_sendmsg+0xcd/0x170 [ 481.884326][ T10] do_syscall_64+0xc6/0x1e0 [ 481.884326][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.884326][ T10] [ 481.886036][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 481.886036][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.886036][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.886036][ T10] ipv6_find_idev+0x102/0x170 [ 481.886036][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.886036][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.886036][ T10] netlink_rcv_skb+0x130/0x360 [ 481.886036][ T10] netlink_unicast+0x449/0x710 [ 481.886036][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.886036][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.886036][ T10] ___sys_sendmsg+0xee/0x170 [ 481.886036][ T10] __sys_sendmsg+0xcd/0x170 [ 481.886036][ T10] do_syscall_64+0xc6/0x1e0 [ 481.886036][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.886036][ T10] [ 481.887927][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 481.888196][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 481.888196][ T10] netdev_get_by_index+0x5e/0x80 [ 481.888196][ T10] fib6_nh_init+0x3d8/0x15b0 [ 481.888196][ T10] ip6_route_info_create+0xf18/0x17d0 [ 481.888196][ T10] addrconf_f6i_alloc+0x244/0x410 [ 481.888196][ T10] ipv6_add_addr+0x411/0x2000 [ 481.888196][ T10] inet6_addr_add+0x30e/0xa40 [ 481.888196][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 481.888196][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.888196][ T10] netlink_rcv_skb+0x130/0x360 [ 481.888196][ T10] netlink_unicast+0x449/0x710 [ 481.888196][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.888196][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.888196][ T10] ___sys_sendmsg+0xee/0x170 [ 481.888196][ T10] __sys_sendmsg+0xcd/0x170 [ 481.888196][ T10] do_syscall_64+0xc6/0x1e0 [ 481.888196][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.888196][ T10] [ 481.890376][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 481.890376][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 481.890376][ T10] ipv6_find_idev+0x102/0x170 [ 481.890376][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.890376][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.890376][ T10] netlink_rcv_skb+0x130/0x360 [ 481.890376][ T10] netlink_unicast+0x449/0x710 [ 481.890376][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.890376][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.890376][ T10] ___sys_sendmsg+0xee/0x170 [ 481.890376][ T10] __sys_sendmsg+0xcd/0x170 [ 481.890376][ T10] do_syscall_64+0xc6/0x1e0 [ 481.890376][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.890376][ T10] [ 481.892154][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 481.892154][ T10] neigh_parms_alloc+0x1e5/0x510 [ 481.892154][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 481.892154][ T10] ipv6_find_idev+0x102/0x170 [ 481.892154][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 481.892154][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 481.892154][ T10] netlink_rcv_skb+0x130/0x360 [ 481.892154][ T10] netlink_unicast+0x449/0x710 [ 481.892154][ T10] netlink_sendmsg+0x723/0xbe0 [ 481.892154][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 481.892154][ T10] ___sys_sendmsg+0xee/0x170 [ 481.892154][ T10] __sys_sendmsg+0xcd/0x170 [ 481.892154][ T10] do_syscall_64+0xc6/0x1e0 [ 481.892154][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 481.892154][ T10] [ 492.150780][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 492.151105][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 492.151105][ T10] netdev_get_by_index+0x5e/0x80 [ 492.151105][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.151105][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.151105][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.151105][ T10] ipv6_add_addr+0x411/0x2000 [ 492.151105][ T10] inet6_addr_add+0x30e/0xa40 [ 492.151105][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.151105][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.151105][ T10] netlink_rcv_skb+0x130/0x360 [ 492.151105][ T10] netlink_unicast+0x449/0x710 [ 492.151105][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.151105][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.151105][ T10] ___sys_sendmsg+0xee/0x170 [ 492.151105][ T10] __sys_sendmsg+0xcd/0x170 [ 492.151105][ T10] do_syscall_64+0xc6/0x1e0 [ 492.151105][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.151105][ T10] [ 492.153121][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 492.153121][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.153121][ T10] ipv6_find_idev+0x102/0x170 [ 492.153121][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.153121][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.153121][ T10] netlink_rcv_skb+0x130/0x360 [ 492.153121][ T10] netlink_unicast+0x449/0x710 [ 492.153121][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.153121][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.153121][ T10] ___sys_sendmsg+0xee/0x170 [ 492.153121][ T10] __sys_sendmsg+0xcd/0x170 [ 492.153121][ T10] do_syscall_64+0xc6/0x1e0 [ 492.153121][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.153121][ T10] [ 492.154643][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 492.154643][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.154643][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.154643][ T10] ipv6_find_idev+0x102/0x170 [ 492.154643][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.154643][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.154643][ T10] netlink_rcv_skb+0x130/0x360 [ 492.154643][ T10] netlink_unicast+0x449/0x710 [ 492.154643][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.154643][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.154643][ T10] ___sys_sendmsg+0xee/0x170 [ 492.154643][ T10] __sys_sendmsg+0xcd/0x170 [ 492.154643][ T10] do_syscall_64+0xc6/0x1e0 [ 492.154643][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.154643][ T10] [ 492.156332][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 492.156601][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 492.156601][ T10] netdev_get_by_index+0x5e/0x80 [ 492.156601][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.156601][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.156601][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.156601][ T10] ipv6_add_addr+0x411/0x2000 [ 492.156601][ T10] inet6_addr_add+0x30e/0xa40 [ 492.156601][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.156601][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.156601][ T10] netlink_rcv_skb+0x130/0x360 [ 492.156601][ T10] netlink_unicast+0x449/0x710 [ 492.156601][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.156601][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.156601][ T10] ___sys_sendmsg+0xee/0x170 [ 492.156601][ T10] __sys_sendmsg+0xcd/0x170 [ 492.156601][ T10] do_syscall_64+0xc6/0x1e0 [ 492.156601][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.156601][ T10] [ 492.158613][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 492.158613][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.158613][ T10] ipv6_find_idev+0x102/0x170 [ 492.158613][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.158613][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.158613][ T10] netlink_rcv_skb+0x130/0x360 [ 492.158613][ T10] netlink_unicast+0x449/0x710 [ 492.158613][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.158613][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.158613][ T10] ___sys_sendmsg+0xee/0x170 [ 492.158613][ T10] __sys_sendmsg+0xcd/0x170 [ 492.158613][ T10] do_syscall_64+0xc6/0x1e0 [ 492.158613][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.158613][ T10] [ 492.160156][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 492.160156][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.160156][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.160156][ T10] ipv6_find_idev+0x102/0x170 [ 492.160156][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.160156][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.160156][ T10] netlink_rcv_skb+0x130/0x360 [ 492.160156][ T10] netlink_unicast+0x449/0x710 [ 492.160156][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.160156][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.160156][ T10] ___sys_sendmsg+0xee/0x170 [ 492.160156][ T10] __sys_sendmsg+0xcd/0x170 [ 492.160156][ T10] do_syscall_64+0xc6/0x1e0 [ 492.160156][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.160156][ T10] [ 492.162053][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 492.162316][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 492.162316][ T10] netdev_get_by_index+0x5e/0x80 [ 492.162316][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.162316][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.162316][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.162316][ T10] ipv6_add_addr+0x411/0x2000 [ 492.162316][ T10] inet6_addr_add+0x30e/0xa40 [ 492.162316][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.162316][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.162316][ T10] netlink_rcv_skb+0x130/0x360 [ 492.162316][ T10] netlink_unicast+0x449/0x710 [ 492.162316][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.162316][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.162316][ T10] ___sys_sendmsg+0xee/0x170 [ 492.162316][ T10] __sys_sendmsg+0xcd/0x170 [ 492.162316][ T10] do_syscall_64+0xc6/0x1e0 [ 492.162316][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.162316][ T10] [ 492.164378][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 492.164378][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.164378][ T10] ipv6_find_idev+0x102/0x170 [ 492.164378][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.164378][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.164378][ T10] netlink_rcv_skb+0x130/0x360 [ 492.164378][ T10] netlink_unicast+0x449/0x710 [ 492.164378][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.164378][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.164378][ T10] ___sys_sendmsg+0xee/0x170 [ 492.164378][ T10] __sys_sendmsg+0xcd/0x170 [ 492.164378][ T10] do_syscall_64+0xc6/0x1e0 [ 492.164378][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.164378][ T10] [ 492.165987][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 492.165987][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.165987][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.165987][ T10] ipv6_find_idev+0x102/0x170 [ 492.165987][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.165987][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.165987][ T10] netlink_rcv_skb+0x130/0x360 [ 492.165987][ T10] netlink_unicast+0x449/0x710 [ 492.165987][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.165987][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.165987][ T10] ___sys_sendmsg+0xee/0x170 [ 492.165987][ T10] __sys_sendmsg+0xcd/0x170 [ 492.165987][ T10] do_syscall_64+0xc6/0x1e0 [ 492.165987][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.165987][ T10] [ 492.167844][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 492.168102][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 492.168102][ T10] netdev_get_by_index+0x5e/0x80 [ 492.168102][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.168102][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.168102][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.168102][ T10] ipv6_add_addr+0x411/0x2000 [ 492.168102][ T10] inet6_addr_add+0x30e/0xa40 [ 492.168102][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.168102][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.168102][ T10] netlink_rcv_skb+0x130/0x360 [ 492.168102][ T10] netlink_unicast+0x449/0x710 [ 492.168102][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.168102][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.168102][ T10] ___sys_sendmsg+0xee/0x170 [ 492.168102][ T10] __sys_sendmsg+0xcd/0x170 [ 492.168102][ T10] do_syscall_64+0xc6/0x1e0 [ 492.168102][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.168102][ T10] [ 492.170330][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 492.170330][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.170330][ T10] ipv6_find_idev+0x102/0x170 [ 492.170330][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.170330][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.170330][ T10] netlink_rcv_skb+0x130/0x360 [ 492.170330][ T10] netlink_unicast+0x449/0x710 [ 492.170330][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.170330][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.170330][ T10] ___sys_sendmsg+0xee/0x170 [ 492.170330][ T10] __sys_sendmsg+0xcd/0x170 [ 492.170330][ T10] do_syscall_64+0xc6/0x1e0 [ 492.170330][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.170330][ T10] [ 492.172173][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 492.172173][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.172173][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.172173][ T10] ipv6_find_idev+0x102/0x170 [ 492.172173][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.172173][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.172173][ T10] netlink_rcv_skb+0x130/0x360 [ 492.172173][ T10] netlink_unicast+0x449/0x710 [ 492.172173][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.172173][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.172173][ T10] ___sys_sendmsg+0xee/0x170 [ 492.172173][ T10] __sys_sendmsg+0xcd/0x170 [ 492.172173][ T10] do_syscall_64+0xc6/0x1e0 [ 492.172173][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.172173][ T10] [ 492.174095][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 492.174368][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 492.174368][ T10] netdev_get_by_index+0x5e/0x80 [ 492.174368][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.174368][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.174368][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.174368][ T10] ipv6_add_addr+0x411/0x2000 [ 492.174368][ T10] inet6_addr_add+0x30e/0xa40 [ 492.174368][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.174368][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.174368][ T10] netlink_rcv_skb+0x130/0x360 [ 492.174368][ T10] netlink_unicast+0x449/0x710 [ 492.174368][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.174368][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.174368][ T10] ___sys_sendmsg+0xee/0x170 [ 492.174368][ T10] __sys_sendmsg+0xcd/0x170 [ 492.174368][ T10] do_syscall_64+0xc6/0x1e0 [ 492.174368][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.174368][ T10] [ 492.176404][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 492.176404][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.176404][ T10] ipv6_find_idev+0x102/0x170 [ 492.176404][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.176404][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.176404][ T10] netlink_rcv_skb+0x130/0x360 [ 492.176404][ T10] netlink_unicast+0x449/0x710 [ 492.176404][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.176404][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.176404][ T10] ___sys_sendmsg+0xee/0x170 [ 492.176404][ T10] __sys_sendmsg+0xcd/0x170 [ 492.176404][ T10] do_syscall_64+0xc6/0x1e0 [ 492.176404][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.176404][ T10] [ 492.177916][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 492.177916][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.177916][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.177916][ T10] ipv6_find_idev+0x102/0x170 [ 492.177916][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.177916][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.177916][ T10] netlink_rcv_skb+0x130/0x360 [ 492.177916][ T10] netlink_unicast+0x449/0x710 [ 492.177916][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.177916][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.177916][ T10] ___sys_sendmsg+0xee/0x170 [ 492.177916][ T10] __sys_sendmsg+0xcd/0x170 [ 492.177916][ T10] do_syscall_64+0xc6/0x1e0 [ 492.177916][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.177916][ T10] [ 492.180100][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 492.180359][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 492.180359][ T10] netdev_get_by_index+0x5e/0x80 [ 492.180359][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.180359][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.180359][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.180359][ T10] ipv6_add_addr+0x411/0x2000 [ 492.180359][ T10] inet6_addr_add+0x30e/0xa40 [ 492.180359][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.180359][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.180359][ T10] netlink_rcv_skb+0x130/0x360 [ 492.180359][ T10] netlink_unicast+0x449/0x710 [ 492.180359][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.180359][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.180359][ T10] ___sys_sendmsg+0xee/0x170 [ 492.180359][ T10] __sys_sendmsg+0xcd/0x170 [ 492.180359][ T10] do_syscall_64+0xc6/0x1e0 [ 492.180359][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.180359][ T10] [ 492.182351][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 492.182351][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.182351][ T10] ipv6_find_idev+0x102/0x170 [ 492.182351][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.182351][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.182351][ T10] netlink_rcv_skb+0x130/0x360 [ 492.182351][ T10] netlink_unicast+0x449/0x710 [ 492.182351][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.182351][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.182351][ T10] ___sys_sendmsg+0xee/0x170 [ 492.182351][ T10] __sys_sendmsg+0xcd/0x170 [ 492.182351][ T10] do_syscall_64+0xc6/0x1e0 [ 492.182351][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.182351][ T10] [ 492.183961][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 492.183961][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.183961][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.183961][ T10] ipv6_find_idev+0x102/0x170 [ 492.183961][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.183961][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.183961][ T10] netlink_rcv_skb+0x130/0x360 [ 492.183961][ T10] netlink_unicast+0x449/0x710 [ 492.183961][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.183961][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.183961][ T10] ___sys_sendmsg+0xee/0x170 [ 492.183961][ T10] __sys_sendmsg+0xcd/0x170 [ 492.183961][ T10] do_syscall_64+0xc6/0x1e0 [ 492.183961][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.183961][ T10] [ 492.185929][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 492.186201][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 492.186201][ T10] netdev_get_by_index+0x5e/0x80 [ 492.186201][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.186201][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.186201][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.186201][ T10] ipv6_add_addr+0x411/0x2000 [ 492.186201][ T10] inet6_addr_add+0x30e/0xa40 [ 492.186201][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.186201][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.186201][ T10] netlink_rcv_skb+0x130/0x360 [ 492.186201][ T10] netlink_unicast+0x449/0x710 [ 492.186201][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.186201][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.186201][ T10] ___sys_sendmsg+0xee/0x170 [ 492.186201][ T10] __sys_sendmsg+0xcd/0x170 [ 492.186201][ T10] do_syscall_64+0xc6/0x1e0 [ 492.186201][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.186201][ T10] [ 492.188280][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 492.188280][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.188280][ T10] ipv6_find_idev+0x102/0x170 [ 492.188280][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.188280][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.188280][ T10] netlink_rcv_skb+0x130/0x360 [ 492.188280][ T10] netlink_unicast+0x449/0x710 [ 492.188280][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.188280][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.188280][ T10] ___sys_sendmsg+0xee/0x170 [ 492.188280][ T10] __sys_sendmsg+0xcd/0x170 [ 492.188280][ T10] do_syscall_64+0xc6/0x1e0 [ 492.188280][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.188280][ T10] [ 492.189825][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 492.189825][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.189825][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.189825][ T10] ipv6_find_idev+0x102/0x170 [ 492.189825][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.189825][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.189825][ T10] netlink_rcv_skb+0x130/0x360 [ 492.189825][ T10] netlink_unicast+0x449/0x710 [ 492.189825][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.189825][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.189825][ T10] ___sys_sendmsg+0xee/0x170 [ 492.189825][ T10] __sys_sendmsg+0xcd/0x170 [ 492.189825][ T10] do_syscall_64+0xc6/0x1e0 [ 492.189825][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.189825][ T10] [ 492.191729][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 492.192059][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 492.192059][ T10] netdev_get_by_index+0x5e/0x80 [ 492.192059][ T10] fib6_nh_init+0x3d8/0x15b0 [ 492.192059][ T10] ip6_route_info_create+0xf18/0x17d0 [ 492.192059][ T10] addrconf_f6i_alloc+0x244/0x410 [ 492.192059][ T10] ipv6_add_addr+0x411/0x2000 [ 492.192059][ T10] inet6_addr_add+0x30e/0xa40 [ 492.192059][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 492.192059][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.192059][ T10] netlink_rcv_skb+0x130/0x360 [ 492.192059][ T10] netlink_unicast+0x449/0x710 [ 492.192059][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.192059][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.192059][ T10] ___sys_sendmsg+0xee/0x170 [ 492.192059][ T10] __sys_sendmsg+0xcd/0x170 [ 492.192059][ T10] do_syscall_64+0xc6/0x1e0 [ 492.192059][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.192059][ T10] [ 492.194259][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 492.194259][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 492.194259][ T10] ipv6_find_idev+0x102/0x170 [ 492.194259][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.194259][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.194259][ T10] netlink_rcv_skb+0x130/0x360 [ 492.194259][ T10] netlink_unicast+0x449/0x710 [ 492.194259][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.194259][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.194259][ T10] ___sys_sendmsg+0xee/0x170 [ 492.194259][ T10] __sys_sendmsg+0xcd/0x170 [ 492.194259][ T10] do_syscall_64+0xc6/0x1e0 [ 492.194259][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.194259][ T10] [ 492.195963][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 492.195963][ T10] neigh_parms_alloc+0x1e5/0x510 [ 492.195963][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 492.195963][ T10] ipv6_find_idev+0x102/0x170 [ 492.195963][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 492.195963][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 492.195963][ T10] netlink_rcv_skb+0x130/0x360 [ 492.195963][ T10] netlink_unicast+0x449/0x710 [ 492.195963][ T10] netlink_sendmsg+0x723/0xbe0 [ 492.195963][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 492.195963][ T10] ___sys_sendmsg+0xee/0x170 [ 492.195963][ T10] __sys_sendmsg+0xcd/0x170 [ 492.195963][ T10] do_syscall_64+0xc6/0x1e0 [ 492.195963][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 492.195963][ T10]