[ 93.891185][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 213 [ 93.891842][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 93.891842][ T10] netdev_get_by_index+0x5e/0x80 [ 93.891842][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.891842][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.891842][ T10] ip6_route_add+0x1c/0x140 [ 93.891842][ T10] addrconf_prefix_route+0x2a6/0x430 [ 93.891842][ T10] inet6_addr_add+0x4f8/0xa40 [ 93.891842][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 93.891842][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.891842][ T10] netlink_rcv_skb+0x130/0x360 [ 93.891842][ T10] netlink_unicast+0x449/0x710 [ 93.891842][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.891842][ T10] __sys_sendto+0x37d/0x410 [ 93.891842][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.891842][ T10] do_syscall_64+0xc6/0x1e0 [ 93.891842][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.891842][ T10] [ 93.894459][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 93.894459][ T10] netdev_get_by_index+0x5e/0x80 [ 93.894459][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.894459][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.894459][ T10] addrconf_f6i_alloc+0x315/0x560 [ 93.894459][ T10] ipv6_add_addr+0x411/0x2000 [ 93.894459][ T10] inet6_addr_add+0x30e/0xa40 [ 93.894459][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 93.894459][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.894459][ T10] netlink_rcv_skb+0x130/0x360 [ 93.894459][ T10] netlink_unicast+0x449/0x710 [ 93.894459][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.894459][ T10] __sys_sendto+0x37d/0x410 [ 93.894459][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.894459][ T10] do_syscall_64+0xc6/0x1e0 [ 93.894459][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.894459][ T10] [ 93.896819][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 93.896819][ T10] dst_init+0x84/0x4a0 [ 93.896819][ T10] dst_alloc+0x97/0x150 [ 93.896819][ T10] ip6_dst_alloc+0x23/0x90 [ 93.896819][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 93.896819][ T10] ip6_pol_route+0x56f/0x840 [ 93.896819][ T10] fib6_rule_lookup+0x334/0x630 [ 93.896819][ T10] ip6_route_output_flags+0x259/0x480 [ 93.896819][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 93.896819][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 93.896819][ T10] tcp_v6_send_response+0x1008/0x2340 [ 93.896819][ T10] tcp_v6_timewait_ack+0x35b/0x7d0 [ 93.896819][ T10] tcp_v6_rcv+0xcac/0x2540 [ 93.896819][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 93.896819][ T10] ip6_input+0x165/0x2b0 [ 93.896819][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 93.896819][ T10] process_backlog+0x101/0x620 [ 93.896819][ T10] [ 93.899273][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 4/212 users at [ 93.899273][ T10] dst_init+0x84/0x4a0 [ 93.899273][ T10] dst_alloc+0x97/0x150 [ 93.899273][ T10] ip6_dst_alloc+0x23/0x90 [ 93.899273][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 93.899273][ T10] ip6_pol_route+0x56f/0x840 [ 93.899273][ T10] fib6_rule_lookup+0x456/0x630 [ 93.899273][ T10] ip6_route_input+0x59c/0xa40 [ 93.899273][ T10] ipv6_rcv+0x184/0x520 [ 93.899273][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 93.899273][ T10] process_backlog+0x101/0x620 [ 93.899273][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 93.899273][ T10] net_rx_action+0x495/0xbe0 [ 93.899273][ T10] __do_softirq+0x1b5/0x7f6 [ 93.899273][ T10] [ 93.901421][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 93.901421][ T10] dst_init+0x84/0x4a0 [ 93.901421][ T10] dst_alloc+0x97/0x150 [ 93.901421][ T10] ip6_dst_alloc+0x23/0x90 [ 93.901421][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 93.901421][ T10] ip6_pol_route+0x56f/0x840 [ 93.901421][ T10] fib6_rule_lookup+0x334/0x630 [ 93.901421][ T10] ip6_route_output_flags+0x259/0x480 [ 93.901421][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 93.901421][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 93.901421][ T10] tcp_v6_connect+0xa69/0x1ba0 [ 93.901421][ T10] __inet_stream_connect+0x272/0x9f0 [ 93.901421][ T10] inet_stream_connect+0x57/0xa0 [ 93.901421][ T10] __sys_connect+0x217/0x2a0 [ 93.901421][ T10] __x64_sys_connect+0x72/0xb0 [ 93.901421][ T10] do_syscall_64+0xc6/0x1e0 [ 93.901421][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.901421][ T10] [ 93.904078][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 93.904078][ T10] netdev_get_by_index+0x5e/0x80 [ 93.904078][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.904078][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.904078][ T10] ip6_route_add+0x1c/0x140 [ 93.904078][ T10] inet6_rtm_newroute+0x104/0x110 [ 93.904078][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.904078][ T10] netlink_rcv_skb+0x130/0x360 [ 93.904078][ T10] netlink_unicast+0x449/0x710 [ 93.904078][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.904078][ T10] __sys_sendto+0x37d/0x410 [ 93.904078][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.904078][ T10] do_syscall_64+0xc6/0x1e0 [ 93.904078][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.904078][ T10] [ 93.906149][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 93.906149][ T10] netdev_get_by_index+0x5e/0x80 [ 93.906149][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.906149][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.906149][ T10] ip6_route_add+0x1c/0x140 [ 93.906149][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 93.906149][ T10] addrconf_add_dev+0xe2/0x170 [ 93.906149][ T10] inet6_addr_add+0x12f/0xa40 [ 93.906149][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 93.906149][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.906149][ T10] netlink_rcv_skb+0x130/0x360 [ 93.906149][ T10] netlink_unicast+0x449/0x710 [ 93.906149][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.906149][ T10] __sys_sendto+0x37d/0x410 [ 93.906149][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.906149][ T10] do_syscall_64+0xc6/0x1e0 [ 93.906149][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.906149][ T10] [ 93.908632][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 93.908632][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 93.908632][ T10] ipv6_find_idev+0x102/0x170 [ 93.908632][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 93.908632][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.908632][ T10] netlink_rcv_skb+0x130/0x360 [ 93.908632][ T10] netlink_unicast+0x449/0x710 [ 93.908632][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.908632][ T10] __sys_sendto+0x37d/0x410 [ 93.908632][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.908632][ T10] do_syscall_64+0xc6/0x1e0 [ 93.908632][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.908632][ T10] [ 93.910455][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 93.910455][ T10] neigh_parms_alloc+0x1e5/0x510 [ 93.910455][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 93.910455][ T10] ipv6_find_idev+0x102/0x170 [ 93.910455][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 93.910455][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.910455][ T10] netlink_rcv_skb+0x130/0x360 [ 93.910455][ T10] netlink_unicast+0x449/0x710 [ 93.910455][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.910455][ T10] __sys_sendto+0x37d/0x410 [ 93.910455][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.910455][ T10] do_syscall_64+0xc6/0x1e0 [ 93.910455][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.910455][ T10] [ 93.912558][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 8581 [ 93.914210][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 378/8580 users at [ 93.914210][ T10] dst_init+0x84/0x4a0 [ 93.914210][ T10] dst_alloc+0x97/0x150 [ 93.914210][ T10] ip6_dst_alloc+0x23/0x90 [ 93.914210][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 93.914210][ T10] ip6_pol_route+0x56f/0x840 [ 93.914210][ T10] fib6_rule_lookup+0x334/0x630 [ 93.914210][ T10] ip6_route_output_flags+0x259/0x480 [ 93.914210][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 93.914210][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 93.914210][ T10] inet6_csk_route_req+0x4af/0x6e0 [ 93.914210][ T10] tcp_conn_request+0xa5d/0x2d10 [ 93.914210][ T10] tcp_rcv_state_process+0x453/0x1fe0 [ 93.914210][ T10] tcp_v6_do_rcv+0x343/0x12f0 [ 93.914210][ T10] tcp_v6_rcv+0x2166/0x2540 [ 93.914210][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 93.914210][ T10] ip6_input+0x165/0x2b0 [ 93.914210][ T10] [ 93.916913][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 8193/8580 users at [ 93.916913][ T10] netdev_get_by_index+0x5e/0x80 [ 93.916913][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.916913][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.916913][ T10] ip6_route_add+0x1c/0x140 [ 93.916913][ T10] inet6_rtm_newroute+0x104/0x110 [ 93.916913][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.916913][ T10] netlink_rcv_skb+0x130/0x360 [ 93.916913][ T10] netlink_unicast+0x449/0x710 [ 93.916913][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.916913][ T10] __sys_sendto+0x37d/0x410 [ 93.916913][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.916913][ T10] do_syscall_64+0xc6/0x1e0 [ 93.916913][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.916913][ T10] [ 93.919090][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 4/8580 users at [ 93.919090][ T10] dst_init+0x84/0x4a0 [ 93.919090][ T10] dst_alloc+0x97/0x150 [ 93.919090][ T10] ip6_dst_alloc+0x23/0x90 [ 93.919090][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 93.919090][ T10] ip6_pol_route+0x56f/0x840 [ 93.919090][ T10] fib6_rule_lookup+0x456/0x630 [ 93.919090][ T10] ip6_route_input+0x59c/0xa40 [ 93.919090][ T10] ipv6_rcv+0x184/0x520 [ 93.919090][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 93.919090][ T10] process_backlog+0x101/0x620 [ 93.919090][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 93.919090][ T10] net_rx_action+0x495/0xbe0 [ 93.919090][ T10] __do_softirq+0x1b5/0x7f6 [ 93.919090][ T10] [ 93.921454][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 93.921454][ T10] netdev_get_by_index+0x5e/0x80 [ 93.921454][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.921454][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.921454][ T10] ip6_route_add+0x1c/0x140 [ 93.921454][ T10] addrconf_prefix_route+0x2a6/0x430 [ 93.921454][ T10] inet6_addr_add+0x4f8/0xa40 [ 93.921454][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 93.921454][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.921454][ T10] netlink_rcv_skb+0x130/0x360 [ 93.921454][ T10] netlink_unicast+0x449/0x710 [ 93.921454][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.921454][ T10] __sys_sendto+0x37d/0x410 [ 93.921454][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.921454][ T10] do_syscall_64+0xc6/0x1e0 [ 93.921454][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.921454][ T10] [ 93.923878][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 93.923878][ T10] netdev_get_by_index+0x5e/0x80 [ 93.923878][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.923878][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.923878][ T10] addrconf_f6i_alloc+0x315/0x560 [ 93.923878][ T10] ipv6_add_addr+0x411/0x2000 [ 93.923878][ T10] inet6_addr_add+0x30e/0xa40 [ 93.923878][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 93.923878][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.923878][ T10] netlink_rcv_skb+0x130/0x360 [ 93.923878][ T10] netlink_unicast+0x449/0x710 [ 93.923878][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.923878][ T10] __sys_sendto+0x37d/0x410 [ 93.923878][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.923878][ T10] do_syscall_64+0xc6/0x1e0 [ 93.923878][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.923878][ T10] [ 93.926544][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 93.926544][ T10] netdev_get_by_index+0x5e/0x80 [ 93.926544][ T10] fib6_nh_init+0x3d8/0x15b0 [ 93.926544][ T10] ip6_route_info_create+0xf18/0x17d0 [ 93.926544][ T10] ip6_route_add+0x1c/0x140 [ 93.926544][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 93.926544][ T10] addrconf_add_dev+0xe2/0x170 [ 93.926544][ T10] inet6_addr_add+0x12f/0xa40 [ 93.926544][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 93.926544][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.926544][ T10] netlink_rcv_skb+0x130/0x360 [ 93.926544][ T10] netlink_unicast+0x449/0x710 [ 93.926544][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.926544][ T10] __sys_sendto+0x37d/0x410 [ 93.926544][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.926544][ T10] do_syscall_64+0xc6/0x1e0 [ 93.926544][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.926544][ T10] [ 93.929030][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 93.929030][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 93.929030][ T10] ipv6_find_idev+0x102/0x170 [ 93.929030][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 93.929030][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.929030][ T10] netlink_rcv_skb+0x130/0x360 [ 93.929030][ T10] netlink_unicast+0x449/0x710 [ 93.929030][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.929030][ T10] __sys_sendto+0x37d/0x410 [ 93.929030][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.929030][ T10] do_syscall_64+0xc6/0x1e0 [ 93.929030][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.929030][ T10] [ 93.930721][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 93.930721][ T10] neigh_parms_alloc+0x1e5/0x510 [ 93.930721][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 93.930721][ T10] ipv6_find_idev+0x102/0x170 [ 93.930721][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 93.930721][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 93.930721][ T10] netlink_rcv_skb+0x130/0x360 [ 93.930721][ T10] netlink_unicast+0x449/0x710 [ 93.930721][ T10] netlink_sendmsg+0x723/0xbe0 [ 93.930721][ T10] __sys_sendto+0x37d/0x410 [ 93.930721][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 93.930721][ T10] do_syscall_64+0xc6/0x1e0 [ 93.930721][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 93.930721][ T10] [ 93.932623][ T10] unregister_netdevice: waiting for lo to become free. Usage count = 397 [ 93.932969][ T10] ref_tracker: lo@ffff888005e945b8 has 396/396 users at [ 93.932969][ T10] dst_init+0x84/0x4a0 [ 93.932969][ T10] dst_alloc+0x97/0x150 [ 93.932969][ T10] ip6_dst_alloc+0x23/0x90 [ 93.932969][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 93.932969][ T10] ip6_pol_route+0x56f/0x840 [ 93.932969][ T10] fib6_rule_lookup+0x456/0x630 [ 93.932969][ T10] ip6_route_input+0x59c/0xa40 [ 93.932969][ T10] ipv6_rcv+0x184/0x520 [ 93.932969][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 93.932969][ T10] process_backlog+0x101/0x620 [ 93.932969][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 93.932969][ T10] net_rx_action+0x495/0xbe0 [ 93.932969][ T10] __do_softirq+0x1b5/0x7f6 [ 93.932969][ T10] [ 104.057940][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 213 [ 104.058423][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 104.058423][ T10] netdev_get_by_index+0x5e/0x80 [ 104.058423][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.058423][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.058423][ T10] ip6_route_add+0x1c/0x140 [ 104.058423][ T10] addrconf_prefix_route+0x2a6/0x430 [ 104.058423][ T10] inet6_addr_add+0x4f8/0xa40 [ 104.058423][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 104.058423][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.058423][ T10] netlink_rcv_skb+0x130/0x360 [ 104.058423][ T10] netlink_unicast+0x449/0x710 [ 104.058423][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.058423][ T10] __sys_sendto+0x37d/0x410 [ 104.058423][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.058423][ T10] do_syscall_64+0xc6/0x1e0 [ 104.058423][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.058423][ T10] [ 104.060611][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 104.060611][ T10] netdev_get_by_index+0x5e/0x80 [ 104.060611][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.060611][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.060611][ T10] addrconf_f6i_alloc+0x315/0x560 [ 104.060611][ T10] ipv6_add_addr+0x411/0x2000 [ 104.060611][ T10] inet6_addr_add+0x30e/0xa40 [ 104.060611][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 104.060611][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.060611][ T10] netlink_rcv_skb+0x130/0x360 [ 104.060611][ T10] netlink_unicast+0x449/0x710 [ 104.060611][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.060611][ T10] __sys_sendto+0x37d/0x410 [ 104.060611][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.060611][ T10] do_syscall_64+0xc6/0x1e0 [ 104.060611][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.060611][ T10] [ 104.062808][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 104.062808][ T10] dst_init+0x84/0x4a0 [ 104.062808][ T10] dst_alloc+0x97/0x150 [ 104.062808][ T10] ip6_dst_alloc+0x23/0x90 [ 104.062808][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 104.062808][ T10] ip6_pol_route+0x56f/0x840 [ 104.062808][ T10] fib6_rule_lookup+0x334/0x630 [ 104.062808][ T10] ip6_route_output_flags+0x259/0x480 [ 104.062808][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 104.062808][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 104.062808][ T10] tcp_v6_send_response+0x1008/0x2340 [ 104.062808][ T10] tcp_v6_timewait_ack+0x35b/0x7d0 [ 104.062808][ T10] tcp_v6_rcv+0xcac/0x2540 [ 104.062808][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 104.062808][ T10] ip6_input+0x165/0x2b0 [ 104.062808][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 104.062808][ T10] process_backlog+0x101/0x620 [ 104.062808][ T10] [ 104.065189][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 4/212 users at [ 104.065189][ T10] dst_init+0x84/0x4a0 [ 104.065189][ T10] dst_alloc+0x97/0x150 [ 104.065189][ T10] ip6_dst_alloc+0x23/0x90 [ 104.065189][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 104.065189][ T10] ip6_pol_route+0x56f/0x840 [ 104.065189][ T10] fib6_rule_lookup+0x456/0x630 [ 104.065189][ T10] ip6_route_input+0x59c/0xa40 [ 104.065189][ T10] ipv6_rcv+0x184/0x520 [ 104.065189][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 104.065189][ T10] process_backlog+0x101/0x620 [ 104.065189][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 104.065189][ T10] net_rx_action+0x495/0xbe0 [ 104.065189][ T10] __do_softirq+0x1b5/0x7f6 [ 104.065189][ T10] [ 104.066998][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 104.066998][ T10] dst_init+0x84/0x4a0 [ 104.066998][ T10] dst_alloc+0x97/0x150 [ 104.066998][ T10] ip6_dst_alloc+0x23/0x90 [ 104.066998][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 104.066998][ T10] ip6_pol_route+0x56f/0x840 [ 104.066998][ T10] fib6_rule_lookup+0x334/0x630 [ 104.066998][ T10] ip6_route_output_flags+0x259/0x480 [ 104.066998][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 104.066998][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 104.066998][ T10] tcp_v6_connect+0xa69/0x1ba0 [ 104.066998][ T10] __inet_stream_connect+0x272/0x9f0 [ 104.066998][ T10] inet_stream_connect+0x57/0xa0 [ 104.066998][ T10] __sys_connect+0x217/0x2a0 [ 104.066998][ T10] __x64_sys_connect+0x72/0xb0 [ 104.066998][ T10] do_syscall_64+0xc6/0x1e0 [ 104.066998][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.066998][ T10] [ 104.069293][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 104.069293][ T10] netdev_get_by_index+0x5e/0x80 [ 104.069293][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.069293][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.069293][ T10] ip6_route_add+0x1c/0x140 [ 104.069293][ T10] inet6_rtm_newroute+0x104/0x110 [ 104.069293][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.069293][ T10] netlink_rcv_skb+0x130/0x360 [ 104.069293][ T10] netlink_unicast+0x449/0x710 [ 104.069293][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.069293][ T10] __sys_sendto+0x37d/0x410 [ 104.069293][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.069293][ T10] do_syscall_64+0xc6/0x1e0 [ 104.069293][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.069293][ T10] [ 104.071438][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 104.071438][ T10] netdev_get_by_index+0x5e/0x80 [ 104.071438][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.071438][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.071438][ T10] ip6_route_add+0x1c/0x140 [ 104.071438][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 104.071438][ T10] addrconf_add_dev+0xe2/0x170 [ 104.071438][ T10] inet6_addr_add+0x12f/0xa40 [ 104.071438][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 104.071438][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.071438][ T10] netlink_rcv_skb+0x130/0x360 [ 104.071438][ T10] netlink_unicast+0x449/0x710 [ 104.071438][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.071438][ T10] __sys_sendto+0x37d/0x410 [ 104.071438][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.071438][ T10] do_syscall_64+0xc6/0x1e0 [ 104.071438][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.071438][ T10] [ 104.073887][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 104.073887][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 104.073887][ T10] ipv6_find_idev+0x102/0x170 [ 104.073887][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 104.073887][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.073887][ T10] netlink_rcv_skb+0x130/0x360 [ 104.073887][ T10] netlink_unicast+0x449/0x710 [ 104.073887][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.073887][ T10] __sys_sendto+0x37d/0x410 [ 104.073887][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.073887][ T10] do_syscall_64+0xc6/0x1e0 [ 104.073887][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.073887][ T10] [ 104.075671][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 104.075671][ T10] neigh_parms_alloc+0x1e5/0x510 [ 104.075671][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 104.075671][ T10] ipv6_find_idev+0x102/0x170 [ 104.075671][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 104.075671][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.075671][ T10] netlink_rcv_skb+0x130/0x360 [ 104.075671][ T10] netlink_unicast+0x449/0x710 [ 104.075671][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.075671][ T10] __sys_sendto+0x37d/0x410 [ 104.075671][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.075671][ T10] do_syscall_64+0xc6/0x1e0 [ 104.075671][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.075671][ T10] [ 104.077667][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 8581 [ 104.079192][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 378/8580 users at [ 104.079192][ T10] dst_init+0x84/0x4a0 [ 104.079192][ T10] dst_alloc+0x97/0x150 [ 104.079192][ T10] ip6_dst_alloc+0x23/0x90 [ 104.079192][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 104.079192][ T10] ip6_pol_route+0x56f/0x840 [ 104.079192][ T10] fib6_rule_lookup+0x334/0x630 [ 104.079192][ T10] ip6_route_output_flags+0x259/0x480 [ 104.079192][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 104.079192][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 104.079192][ T10] inet6_csk_route_req+0x4af/0x6e0 [ 104.079192][ T10] tcp_conn_request+0xa5d/0x2d10 [ 104.079192][ T10] tcp_rcv_state_process+0x453/0x1fe0 [ 104.079192][ T10] tcp_v6_do_rcv+0x343/0x12f0 [ 104.079192][ T10] tcp_v6_rcv+0x2166/0x2540 [ 104.079192][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 104.079192][ T10] ip6_input+0x165/0x2b0 [ 104.079192][ T10] [ 104.081635][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 8193/8580 users at [ 104.081635][ T10] netdev_get_by_index+0x5e/0x80 [ 104.081635][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.081635][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.081635][ T10] ip6_route_add+0x1c/0x140 [ 104.081635][ T10] inet6_rtm_newroute+0x104/0x110 [ 104.081635][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.081635][ T10] netlink_rcv_skb+0x130/0x360 [ 104.081635][ T10] netlink_unicast+0x449/0x710 [ 104.081635][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.081635][ T10] __sys_sendto+0x37d/0x410 [ 104.081635][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.081635][ T10] do_syscall_64+0xc6/0x1e0 [ 104.081635][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.081635][ T10] [ 104.083628][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 4/8580 users at [ 104.083628][ T10] dst_init+0x84/0x4a0 [ 104.083628][ T10] dst_alloc+0x97/0x150 [ 104.083628][ T10] ip6_dst_alloc+0x23/0x90 [ 104.083628][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 104.083628][ T10] ip6_pol_route+0x56f/0x840 [ 104.083628][ T10] fib6_rule_lookup+0x456/0x630 [ 104.083628][ T10] ip6_route_input+0x59c/0xa40 [ 104.083628][ T10] ipv6_rcv+0x184/0x520 [ 104.083628][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 104.083628][ T10] process_backlog+0x101/0x620 [ 104.083628][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 104.083628][ T10] net_rx_action+0x495/0xbe0 [ 104.083628][ T10] __do_softirq+0x1b5/0x7f6 [ 104.083628][ T10] [ 104.085589][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 104.085589][ T10] netdev_get_by_index+0x5e/0x80 [ 104.085589][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.085589][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.085589][ T10] ip6_route_add+0x1c/0x140 [ 104.085589][ T10] addrconf_prefix_route+0x2a6/0x430 [ 104.085589][ T10] inet6_addr_add+0x4f8/0xa40 [ 104.085589][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 104.085589][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.085589][ T10] netlink_rcv_skb+0x130/0x360 [ 104.085589][ T10] netlink_unicast+0x449/0x710 [ 104.085589][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.085589][ T10] __sys_sendto+0x37d/0x410 [ 104.085589][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.085589][ T10] do_syscall_64+0xc6/0x1e0 [ 104.085589][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.085589][ T10] [ 104.087980][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 104.087980][ T10] netdev_get_by_index+0x5e/0x80 [ 104.087980][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.087980][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.087980][ T10] addrconf_f6i_alloc+0x315/0x560 [ 104.087980][ T10] ipv6_add_addr+0x411/0x2000 [ 104.087980][ T10] inet6_addr_add+0x30e/0xa40 [ 104.087980][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 104.087980][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.087980][ T10] netlink_rcv_skb+0x130/0x360 [ 104.087980][ T10] netlink_unicast+0x449/0x710 [ 104.087980][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.087980][ T10] __sys_sendto+0x37d/0x410 [ 104.087980][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.087980][ T10] do_syscall_64+0xc6/0x1e0 [ 104.087980][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.087980][ T10] [ 104.090458][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 104.090458][ T10] netdev_get_by_index+0x5e/0x80 [ 104.090458][ T10] fib6_nh_init+0x3d8/0x15b0 [ 104.090458][ T10] ip6_route_info_create+0xf18/0x17d0 [ 104.090458][ T10] ip6_route_add+0x1c/0x140 [ 104.090458][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 104.090458][ T10] addrconf_add_dev+0xe2/0x170 [ 104.090458][ T10] inet6_addr_add+0x12f/0xa40 [ 104.090458][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 104.090458][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.090458][ T10] netlink_rcv_skb+0x130/0x360 [ 104.090458][ T10] netlink_unicast+0x449/0x710 [ 104.090458][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.090458][ T10] __sys_sendto+0x37d/0x410 [ 104.090458][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.090458][ T10] do_syscall_64+0xc6/0x1e0 [ 104.090458][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.090458][ T10] [ 104.093002][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 104.093002][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 104.093002][ T10] ipv6_find_idev+0x102/0x170 [ 104.093002][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 104.093002][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.093002][ T10] netlink_rcv_skb+0x130/0x360 [ 104.093002][ T10] netlink_unicast+0x449/0x710 [ 104.093002][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.093002][ T10] __sys_sendto+0x37d/0x410 [ 104.093002][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.093002][ T10] do_syscall_64+0xc6/0x1e0 [ 104.093002][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.093002][ T10] [ 104.095024][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 104.095024][ T10] neigh_parms_alloc+0x1e5/0x510 [ 104.095024][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 104.095024][ T10] ipv6_find_idev+0x102/0x170 [ 104.095024][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 104.095024][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 104.095024][ T10] netlink_rcv_skb+0x130/0x360 [ 104.095024][ T10] netlink_unicast+0x449/0x710 [ 104.095024][ T10] netlink_sendmsg+0x723/0xbe0 [ 104.095024][ T10] __sys_sendto+0x37d/0x410 [ 104.095024][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 104.095024][ T10] do_syscall_64+0xc6/0x1e0 [ 104.095024][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 104.095024][ T10] [ 104.097060][ T10] unregister_netdevice: waiting for lo to become free. Usage count = 397 [ 104.097875][ T10] ref_tracker: lo@ffff888005e945b8 has 396/396 users at [ 104.097875][ T10] dst_init+0x84/0x4a0 [ 104.097875][ T10] dst_alloc+0x97/0x150 [ 104.097875][ T10] ip6_dst_alloc+0x23/0x90 [ 104.097875][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 104.097875][ T10] ip6_pol_route+0x56f/0x840 [ 104.097875][ T10] fib6_rule_lookup+0x456/0x630 [ 104.097875][ T10] ip6_route_input+0x59c/0xa40 [ 104.097875][ T10] ipv6_rcv+0x184/0x520 [ 104.097875][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 104.097875][ T10] process_backlog+0x101/0x620 [ 104.097875][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 104.097875][ T10] net_rx_action+0x495/0xbe0 [ 104.097875][ T10] __do_softirq+0x1b5/0x7f6 [ 104.097875][ T10] [ 114.225880][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 213 [ 114.226412][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 114.226412][ T10] netdev_get_by_index+0x5e/0x80 [ 114.226412][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.226412][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.226412][ T10] ip6_route_add+0x1c/0x140 [ 114.226412][ T10] addrconf_prefix_route+0x2a6/0x430 [ 114.226412][ T10] inet6_addr_add+0x4f8/0xa40 [ 114.226412][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 114.226412][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.226412][ T10] netlink_rcv_skb+0x130/0x360 [ 114.226412][ T10] netlink_unicast+0x449/0x710 [ 114.226412][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.226412][ T10] __sys_sendto+0x37d/0x410 [ 114.226412][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.226412][ T10] do_syscall_64+0xc6/0x1e0 [ 114.226412][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.226412][ T10] [ 114.228633][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 114.228633][ T10] netdev_get_by_index+0x5e/0x80 [ 114.228633][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.228633][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.228633][ T10] addrconf_f6i_alloc+0x315/0x560 [ 114.228633][ T10] ipv6_add_addr+0x411/0x2000 [ 114.228633][ T10] inet6_addr_add+0x30e/0xa40 [ 114.228633][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 114.228633][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.228633][ T10] netlink_rcv_skb+0x130/0x360 [ 114.228633][ T10] netlink_unicast+0x449/0x710 [ 114.228633][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.228633][ T10] __sys_sendto+0x37d/0x410 [ 114.228633][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.228633][ T10] do_syscall_64+0xc6/0x1e0 [ 114.228633][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.228633][ T10] [ 114.230676][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 114.230676][ T10] dst_init+0x84/0x4a0 [ 114.230676][ T10] dst_alloc+0x97/0x150 [ 114.230676][ T10] ip6_dst_alloc+0x23/0x90 [ 114.230676][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 114.230676][ T10] ip6_pol_route+0x56f/0x840 [ 114.230676][ T10] fib6_rule_lookup+0x334/0x630 [ 114.230676][ T10] ip6_route_output_flags+0x259/0x480 [ 114.230676][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 114.230676][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 114.230676][ T10] tcp_v6_send_response+0x1008/0x2340 [ 114.230676][ T10] tcp_v6_timewait_ack+0x35b/0x7d0 [ 114.230676][ T10] tcp_v6_rcv+0xcac/0x2540 [ 114.230676][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 114.230676][ T10] ip6_input+0x165/0x2b0 [ 114.230676][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 114.230676][ T10] process_backlog+0x101/0x620 [ 114.230676][ T10] [ 114.232795][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 4/212 users at [ 114.232795][ T10] dst_init+0x84/0x4a0 [ 114.232795][ T10] dst_alloc+0x97/0x150 [ 114.232795][ T10] ip6_dst_alloc+0x23/0x90 [ 114.232795][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 114.232795][ T10] ip6_pol_route+0x56f/0x840 [ 114.232795][ T10] fib6_rule_lookup+0x456/0x630 [ 114.232795][ T10] ip6_route_input+0x59c/0xa40 [ 114.232795][ T10] ipv6_rcv+0x184/0x520 [ 114.232795][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 114.232795][ T10] process_backlog+0x101/0x620 [ 114.232795][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 114.232795][ T10] net_rx_action+0x495/0xbe0 [ 114.232795][ T10] __do_softirq+0x1b5/0x7f6 [ 114.232795][ T10] [ 114.234497][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 114.234497][ T10] dst_init+0x84/0x4a0 [ 114.234497][ T10] dst_alloc+0x97/0x150 [ 114.234497][ T10] ip6_dst_alloc+0x23/0x90 [ 114.234497][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 114.234497][ T10] ip6_pol_route+0x56f/0x840 [ 114.234497][ T10] fib6_rule_lookup+0x334/0x630 [ 114.234497][ T10] ip6_route_output_flags+0x259/0x480 [ 114.234497][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 114.234497][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 114.234497][ T10] tcp_v6_connect+0xa69/0x1ba0 [ 114.234497][ T10] __inet_stream_connect+0x272/0x9f0 [ 114.234497][ T10] inet_stream_connect+0x57/0xa0 [ 114.234497][ T10] __sys_connect+0x217/0x2a0 [ 114.234497][ T10] __x64_sys_connect+0x72/0xb0 [ 114.234497][ T10] do_syscall_64+0xc6/0x1e0 [ 114.234497][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.234497][ T10] [ 114.236616][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 114.236616][ T10] netdev_get_by_index+0x5e/0x80 [ 114.236616][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.236616][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.236616][ T10] ip6_route_add+0x1c/0x140 [ 114.236616][ T10] inet6_rtm_newroute+0x104/0x110 [ 114.236616][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.236616][ T10] netlink_rcv_skb+0x130/0x360 [ 114.236616][ T10] netlink_unicast+0x449/0x710 [ 114.236616][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.236616][ T10] __sys_sendto+0x37d/0x410 [ 114.236616][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.236616][ T10] do_syscall_64+0xc6/0x1e0 [ 114.236616][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.236616][ T10] [ 114.238618][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 114.238618][ T10] netdev_get_by_index+0x5e/0x80 [ 114.238618][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.238618][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.238618][ T10] ip6_route_add+0x1c/0x140 [ 114.238618][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 114.238618][ T10] addrconf_add_dev+0xe2/0x170 [ 114.238618][ T10] inet6_addr_add+0x12f/0xa40 [ 114.238618][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 114.238618][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.238618][ T10] netlink_rcv_skb+0x130/0x360 [ 114.238618][ T10] netlink_unicast+0x449/0x710 [ 114.238618][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.238618][ T10] __sys_sendto+0x37d/0x410 [ 114.238618][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.238618][ T10] do_syscall_64+0xc6/0x1e0 [ 114.238618][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.238618][ T10] [ 114.240757][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 114.240757][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 114.240757][ T10] ipv6_find_idev+0x102/0x170 [ 114.240757][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 114.240757][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.240757][ T10] netlink_rcv_skb+0x130/0x360 [ 114.240757][ T10] netlink_unicast+0x449/0x710 [ 114.240757][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.240757][ T10] __sys_sendto+0x37d/0x410 [ 114.240757][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.240757][ T10] do_syscall_64+0xc6/0x1e0 [ 114.240757][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.240757][ T10] [ 114.242395][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 114.242395][ T10] neigh_parms_alloc+0x1e5/0x510 [ 114.242395][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 114.242395][ T10] ipv6_find_idev+0x102/0x170 [ 114.242395][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 114.242395][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.242395][ T10] netlink_rcv_skb+0x130/0x360 [ 114.242395][ T10] netlink_unicast+0x449/0x710 [ 114.242395][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.242395][ T10] __sys_sendto+0x37d/0x410 [ 114.242395][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.242395][ T10] do_syscall_64+0xc6/0x1e0 [ 114.242395][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.242395][ T10] [ 114.244221][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 8581 [ 114.245731][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 378/8580 users at [ 114.245731][ T10] dst_init+0x84/0x4a0 [ 114.245731][ T10] dst_alloc+0x97/0x150 [ 114.245731][ T10] ip6_dst_alloc+0x23/0x90 [ 114.245731][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 114.245731][ T10] ip6_pol_route+0x56f/0x840 [ 114.245731][ T10] fib6_rule_lookup+0x334/0x630 [ 114.245731][ T10] ip6_route_output_flags+0x259/0x480 [ 114.245731][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 114.245731][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 114.245731][ T10] inet6_csk_route_req+0x4af/0x6e0 [ 114.245731][ T10] tcp_conn_request+0xa5d/0x2d10 [ 114.245731][ T10] tcp_rcv_state_process+0x453/0x1fe0 [ 114.245731][ T10] tcp_v6_do_rcv+0x343/0x12f0 [ 114.245731][ T10] tcp_v6_rcv+0x2166/0x2540 [ 114.245731][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 114.245731][ T10] ip6_input+0x165/0x2b0 [ 114.245731][ T10] [ 114.247925][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 8193/8580 users at [ 114.247925][ T10] netdev_get_by_index+0x5e/0x80 [ 114.247925][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.247925][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.247925][ T10] ip6_route_add+0x1c/0x140 [ 114.247925][ T10] inet6_rtm_newroute+0x104/0x110 [ 114.247925][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.247925][ T10] netlink_rcv_skb+0x130/0x360 [ 114.247925][ T10] netlink_unicast+0x449/0x710 [ 114.247925][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.247925][ T10] __sys_sendto+0x37d/0x410 [ 114.247925][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.247925][ T10] do_syscall_64+0xc6/0x1e0 [ 114.247925][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.247925][ T10] [ 114.249733][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 4/8580 users at [ 114.249733][ T10] dst_init+0x84/0x4a0 [ 114.249733][ T10] dst_alloc+0x97/0x150 [ 114.249733][ T10] ip6_dst_alloc+0x23/0x90 [ 114.249733][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 114.249733][ T10] ip6_pol_route+0x56f/0x840 [ 114.249733][ T10] fib6_rule_lookup+0x456/0x630 [ 114.249733][ T10] ip6_route_input+0x59c/0xa40 [ 114.249733][ T10] ipv6_rcv+0x184/0x520 [ 114.249733][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 114.249733][ T10] process_backlog+0x101/0x620 [ 114.249733][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 114.249733][ T10] net_rx_action+0x495/0xbe0 [ 114.249733][ T10] __do_softirq+0x1b5/0x7f6 [ 114.249733][ T10] [ 114.251534][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 114.251534][ T10] netdev_get_by_index+0x5e/0x80 [ 114.251534][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.251534][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.251534][ T10] ip6_route_add+0x1c/0x140 [ 114.251534][ T10] addrconf_prefix_route+0x2a6/0x430 [ 114.251534][ T10] inet6_addr_add+0x4f8/0xa40 [ 114.251534][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 114.251534][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.251534][ T10] netlink_rcv_skb+0x130/0x360 [ 114.251534][ T10] netlink_unicast+0x449/0x710 [ 114.251534][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.251534][ T10] __sys_sendto+0x37d/0x410 [ 114.251534][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.251534][ T10] do_syscall_64+0xc6/0x1e0 [ 114.251534][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.251534][ T10] [ 114.253560][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 114.253560][ T10] netdev_get_by_index+0x5e/0x80 [ 114.253560][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.253560][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.253560][ T10] addrconf_f6i_alloc+0x315/0x560 [ 114.253560][ T10] ipv6_add_addr+0x411/0x2000 [ 114.253560][ T10] inet6_addr_add+0x30e/0xa40 [ 114.253560][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 114.253560][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.253560][ T10] netlink_rcv_skb+0x130/0x360 [ 114.253560][ T10] netlink_unicast+0x449/0x710 [ 114.253560][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.253560][ T10] __sys_sendto+0x37d/0x410 [ 114.253560][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.253560][ T10] do_syscall_64+0xc6/0x1e0 [ 114.253560][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.253560][ T10] [ 114.255734][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 114.255734][ T10] netdev_get_by_index+0x5e/0x80 [ 114.255734][ T10] fib6_nh_init+0x3d8/0x15b0 [ 114.255734][ T10] ip6_route_info_create+0xf18/0x17d0 [ 114.255734][ T10] ip6_route_add+0x1c/0x140 [ 114.255734][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 114.255734][ T10] addrconf_add_dev+0xe2/0x170 [ 114.255734][ T10] inet6_addr_add+0x12f/0xa40 [ 114.255734][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 114.255734][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.255734][ T10] netlink_rcv_skb+0x130/0x360 [ 114.255734][ T10] netlink_unicast+0x449/0x710 [ 114.255734][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.255734][ T10] __sys_sendto+0x37d/0x410 [ 114.255734][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.255734][ T10] do_syscall_64+0xc6/0x1e0 [ 114.255734][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.255734][ T10] [ 114.258202][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 114.258202][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 114.258202][ T10] ipv6_find_idev+0x102/0x170 [ 114.258202][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 114.258202][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.258202][ T10] netlink_rcv_skb+0x130/0x360 [ 114.258202][ T10] netlink_unicast+0x449/0x710 [ 114.258202][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.258202][ T10] __sys_sendto+0x37d/0x410 [ 114.258202][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.258202][ T10] do_syscall_64+0xc6/0x1e0 [ 114.258202][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.258202][ T10] [ 114.259891][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 114.259891][ T10] neigh_parms_alloc+0x1e5/0x510 [ 114.259891][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 114.259891][ T10] ipv6_find_idev+0x102/0x170 [ 114.259891][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 114.259891][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 114.259891][ T10] netlink_rcv_skb+0x130/0x360 [ 114.259891][ T10] netlink_unicast+0x449/0x710 [ 114.259891][ T10] netlink_sendmsg+0x723/0xbe0 [ 114.259891][ T10] __sys_sendto+0x37d/0x410 [ 114.259891][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 114.259891][ T10] do_syscall_64+0xc6/0x1e0 [ 114.259891][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 114.259891][ T10] [ 114.261717][ T10] unregister_netdevice: waiting for lo to become free. Usage count = 397 [ 114.262070][ T10] ref_tracker: lo@ffff888005e945b8 has 396/396 users at [ 114.262070][ T10] dst_init+0x84/0x4a0 [ 114.262070][ T10] dst_alloc+0x97/0x150 [ 114.262070][ T10] ip6_dst_alloc+0x23/0x90 [ 114.262070][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 114.262070][ T10] ip6_pol_route+0x56f/0x840 [ 114.262070][ T10] fib6_rule_lookup+0x456/0x630 [ 114.262070][ T10] ip6_route_input+0x59c/0xa40 [ 114.262070][ T10] ipv6_rcv+0x184/0x520 [ 114.262070][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 114.262070][ T10] process_backlog+0x101/0x620 [ 114.262070][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 114.262070][ T10] net_rx_action+0x495/0xbe0 [ 114.262070][ T10] __do_softirq+0x1b5/0x7f6 [ 114.262070][ T10] [ 124.393905][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 213 [ 124.394518][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 124.394518][ T10] netdev_get_by_index+0x5e/0x80 [ 124.394518][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.394518][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.394518][ T10] ip6_route_add+0x1c/0x140 [ 124.394518][ T10] addrconf_prefix_route+0x2a6/0x430 [ 124.394518][ T10] inet6_addr_add+0x4f8/0xa40 [ 124.394518][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 124.394518][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.394518][ T10] netlink_rcv_skb+0x130/0x360 [ 124.394518][ T10] netlink_unicast+0x449/0x710 [ 124.394518][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.394518][ T10] __sys_sendto+0x37d/0x410 [ 124.394518][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.394518][ T10] do_syscall_64+0xc6/0x1e0 [ 124.394518][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.394518][ T10] [ 124.397787][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 124.397787][ T10] netdev_get_by_index+0x5e/0x80 [ 124.397787][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.397787][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.397787][ T10] addrconf_f6i_alloc+0x315/0x560 [ 124.397787][ T10] ipv6_add_addr+0x411/0x2000 [ 124.397787][ T10] inet6_addr_add+0x30e/0xa40 [ 124.397787][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 124.397787][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.397787][ T10] netlink_rcv_skb+0x130/0x360 [ 124.397787][ T10] netlink_unicast+0x449/0x710 [ 124.397787][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.397787][ T10] __sys_sendto+0x37d/0x410 [ 124.397787][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.397787][ T10] do_syscall_64+0xc6/0x1e0 [ 124.397787][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.397787][ T10] [ 124.401025][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 124.401025][ T10] dst_init+0x84/0x4a0 [ 124.401025][ T10] dst_alloc+0x97/0x150 [ 124.401025][ T10] ip6_dst_alloc+0x23/0x90 [ 124.401025][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 124.401025][ T10] ip6_pol_route+0x56f/0x840 [ 124.401025][ T10] fib6_rule_lookup+0x334/0x630 [ 124.401025][ T10] ip6_route_output_flags+0x259/0x480 [ 124.401025][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 124.401025][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 124.401025][ T10] tcp_v6_send_response+0x1008/0x2340 [ 124.401025][ T10] tcp_v6_timewait_ack+0x35b/0x7d0 [ 124.401025][ T10] tcp_v6_rcv+0xcac/0x2540 [ 124.401025][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 124.401025][ T10] ip6_input+0x165/0x2b0 [ 124.401025][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 124.401025][ T10] process_backlog+0x101/0x620 [ 124.401025][ T10] [ 124.404793][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 4/212 users at [ 124.404793][ T10] dst_init+0x84/0x4a0 [ 124.404793][ T10] dst_alloc+0x97/0x150 [ 124.404793][ T10] ip6_dst_alloc+0x23/0x90 [ 124.404793][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 124.404793][ T10] ip6_pol_route+0x56f/0x840 [ 124.404793][ T10] fib6_rule_lookup+0x456/0x630 [ 124.404793][ T10] ip6_route_input+0x59c/0xa40 [ 124.404793][ T10] ipv6_rcv+0x184/0x520 [ 124.404793][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 124.404793][ T10] process_backlog+0x101/0x620 [ 124.404793][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 124.404793][ T10] net_rx_action+0x495/0xbe0 [ 124.404793][ T10] __do_softirq+0x1b5/0x7f6 [ 124.404793][ T10] [ 124.407550][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 124.407550][ T10] dst_init+0x84/0x4a0 [ 124.407550][ T10] dst_alloc+0x97/0x150 [ 124.407550][ T10] ip6_dst_alloc+0x23/0x90 [ 124.407550][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 124.407550][ T10] ip6_pol_route+0x56f/0x840 [ 124.407550][ T10] fib6_rule_lookup+0x334/0x630 [ 124.407550][ T10] ip6_route_output_flags+0x259/0x480 [ 124.407550][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 124.407550][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 124.407550][ T10] tcp_v6_connect+0xa69/0x1ba0 [ 124.407550][ T10] __inet_stream_connect+0x272/0x9f0 [ 124.407550][ T10] inet_stream_connect+0x57/0xa0 [ 124.407550][ T10] __sys_connect+0x217/0x2a0 [ 124.407550][ T10] __x64_sys_connect+0x72/0xb0 [ 124.407550][ T10] do_syscall_64+0xc6/0x1e0 [ 124.407550][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.407550][ T10] [ 124.410928][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 124.410928][ T10] netdev_get_by_index+0x5e/0x80 [ 124.410928][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.410928][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.410928][ T10] ip6_route_add+0x1c/0x140 [ 124.410928][ T10] inet6_rtm_newroute+0x104/0x110 [ 124.410928][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.410928][ T10] netlink_rcv_skb+0x130/0x360 [ 124.410928][ T10] netlink_unicast+0x449/0x710 [ 124.410928][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.410928][ T10] __sys_sendto+0x37d/0x410 [ 124.410928][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.410928][ T10] do_syscall_64+0xc6/0x1e0 [ 124.410928][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.410928][ T10] [ 124.413828][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 124.413828][ T10] netdev_get_by_index+0x5e/0x80 [ 124.413828][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.413828][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.413828][ T10] ip6_route_add+0x1c/0x140 [ 124.413828][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 124.413828][ T10] addrconf_add_dev+0xe2/0x170 [ 124.413828][ T10] inet6_addr_add+0x12f/0xa40 [ 124.413828][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 124.413828][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.413828][ T10] netlink_rcv_skb+0x130/0x360 [ 124.413828][ T10] netlink_unicast+0x449/0x710 [ 124.413828][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.413828][ T10] __sys_sendto+0x37d/0x410 [ 124.413828][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.413828][ T10] do_syscall_64+0xc6/0x1e0 [ 124.413828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.413828][ T10] [ 124.417290][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 124.417290][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 124.417290][ T10] ipv6_find_idev+0x102/0x170 [ 124.417290][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 124.417290][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.417290][ T10] netlink_rcv_skb+0x130/0x360 [ 124.417290][ T10] netlink_unicast+0x449/0x710 [ 124.417290][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.417290][ T10] __sys_sendto+0x37d/0x410 [ 124.417290][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.417290][ T10] do_syscall_64+0xc6/0x1e0 [ 124.417290][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.417290][ T10] [ 124.419773][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 124.419773][ T10] neigh_parms_alloc+0x1e5/0x510 [ 124.419773][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 124.419773][ T10] ipv6_find_idev+0x102/0x170 [ 124.419773][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 124.419773][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.419773][ T10] netlink_rcv_skb+0x130/0x360 [ 124.419773][ T10] netlink_unicast+0x449/0x710 [ 124.419773][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.419773][ T10] __sys_sendto+0x37d/0x410 [ 124.419773][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.419773][ T10] do_syscall_64+0xc6/0x1e0 [ 124.419773][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.419773][ T10] [ 124.422496][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 8581 [ 124.424147][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 378/8580 users at [ 124.424147][ T10] dst_init+0x84/0x4a0 [ 124.424147][ T10] dst_alloc+0x97/0x150 [ 124.424147][ T10] ip6_dst_alloc+0x23/0x90 [ 124.424147][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 124.424147][ T10] ip6_pol_route+0x56f/0x840 [ 124.424147][ T10] fib6_rule_lookup+0x334/0x630 [ 124.424147][ T10] ip6_route_output_flags+0x259/0x480 [ 124.424147][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 124.424147][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 124.424147][ T10] inet6_csk_route_req+0x4af/0x6e0 [ 124.424147][ T10] tcp_conn_request+0xa5d/0x2d10 [ 124.424147][ T10] tcp_rcv_state_process+0x453/0x1fe0 [ 124.424147][ T10] tcp_v6_do_rcv+0x343/0x12f0 [ 124.424147][ T10] tcp_v6_rcv+0x2166/0x2540 [ 124.424147][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 124.424147][ T10] ip6_input+0x165/0x2b0 [ 124.424147][ T10] [ 124.427586][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 8193/8580 users at [ 124.427586][ T10] netdev_get_by_index+0x5e/0x80 [ 124.427586][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.427586][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.427586][ T10] ip6_route_add+0x1c/0x140 [ 124.427586][ T10] inet6_rtm_newroute+0x104/0x110 [ 124.427586][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.427586][ T10] netlink_rcv_skb+0x130/0x360 [ 124.427586][ T10] netlink_unicast+0x449/0x710 [ 124.427586][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.427586][ T10] __sys_sendto+0x37d/0x410 [ 124.427586][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.427586][ T10] do_syscall_64+0xc6/0x1e0 [ 124.427586][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.427586][ T10] [ 124.430473][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 4/8580 users at [ 124.430473][ T10] dst_init+0x84/0x4a0 [ 124.430473][ T10] dst_alloc+0x97/0x150 [ 124.430473][ T10] ip6_dst_alloc+0x23/0x90 [ 124.430473][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 124.430473][ T10] ip6_pol_route+0x56f/0x840 [ 124.430473][ T10] fib6_rule_lookup+0x456/0x630 [ 124.430473][ T10] ip6_route_input+0x59c/0xa40 [ 124.430473][ T10] ipv6_rcv+0x184/0x520 [ 124.430473][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 124.430473][ T10] process_backlog+0x101/0x620 [ 124.430473][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 124.430473][ T10] net_rx_action+0x495/0xbe0 [ 124.430473][ T10] __do_softirq+0x1b5/0x7f6 [ 124.430473][ T10] [ 124.433354][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 124.433354][ T10] netdev_get_by_index+0x5e/0x80 [ 124.433354][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.433354][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.433354][ T10] ip6_route_add+0x1c/0x140 [ 124.433354][ T10] addrconf_prefix_route+0x2a6/0x430 [ 124.433354][ T10] inet6_addr_add+0x4f8/0xa40 [ 124.433354][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 124.433354][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.433354][ T10] netlink_rcv_skb+0x130/0x360 [ 124.433354][ T10] netlink_unicast+0x449/0x710 [ 124.433354][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.433354][ T10] __sys_sendto+0x37d/0x410 [ 124.433354][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.433354][ T10] do_syscall_64+0xc6/0x1e0 [ 124.433354][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.433354][ T10] [ 124.436978][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 124.436978][ T10] netdev_get_by_index+0x5e/0x80 [ 124.436978][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.436978][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.436978][ T10] addrconf_f6i_alloc+0x315/0x560 [ 124.436978][ T10] ipv6_add_addr+0x411/0x2000 [ 124.436978][ T10] inet6_addr_add+0x30e/0xa40 [ 124.436978][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 124.436978][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.436978][ T10] netlink_rcv_skb+0x130/0x360 [ 124.436978][ T10] netlink_unicast+0x449/0x710 [ 124.436978][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.436978][ T10] __sys_sendto+0x37d/0x410 [ 124.436978][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.436978][ T10] do_syscall_64+0xc6/0x1e0 [ 124.436978][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.436978][ T10] [ 124.440694][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 124.440694][ T10] netdev_get_by_index+0x5e/0x80 [ 124.440694][ T10] fib6_nh_init+0x3d8/0x15b0 [ 124.440694][ T10] ip6_route_info_create+0xf18/0x17d0 [ 124.440694][ T10] ip6_route_add+0x1c/0x140 [ 124.440694][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 124.440694][ T10] addrconf_add_dev+0xe2/0x170 [ 124.440694][ T10] inet6_addr_add+0x12f/0xa40 [ 124.440694][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 124.440694][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.440694][ T10] netlink_rcv_skb+0x130/0x360 [ 124.440694][ T10] netlink_unicast+0x449/0x710 [ 124.440694][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.440694][ T10] __sys_sendto+0x37d/0x410 [ 124.440694][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.440694][ T10] do_syscall_64+0xc6/0x1e0 [ 124.440694][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.440694][ T10] [ 124.444248][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 124.444248][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 124.444248][ T10] ipv6_find_idev+0x102/0x170 [ 124.444248][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 124.444248][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.444248][ T10] netlink_rcv_skb+0x130/0x360 [ 124.444248][ T10] netlink_unicast+0x449/0x710 [ 124.444248][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.444248][ T10] __sys_sendto+0x37d/0x410 [ 124.444248][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.444248][ T10] do_syscall_64+0xc6/0x1e0 [ 124.444248][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.444248][ T10] [ 124.446943][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 124.446943][ T10] neigh_parms_alloc+0x1e5/0x510 [ 124.446943][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 124.446943][ T10] ipv6_find_idev+0x102/0x170 [ 124.446943][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 124.446943][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 124.446943][ T10] netlink_rcv_skb+0x130/0x360 [ 124.446943][ T10] netlink_unicast+0x449/0x710 [ 124.446943][ T10] netlink_sendmsg+0x723/0xbe0 [ 124.446943][ T10] __sys_sendto+0x37d/0x410 [ 124.446943][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 124.446943][ T10] do_syscall_64+0xc6/0x1e0 [ 124.446943][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 124.446943][ T10] [ 124.449737][ T10] unregister_netdevice: waiting for lo to become free. Usage count = 397 [ 124.450201][ T10] ref_tracker: lo@ffff888005e945b8 has 396/396 users at [ 124.450201][ T10] dst_init+0x84/0x4a0 [ 124.450201][ T10] dst_alloc+0x97/0x150 [ 124.450201][ T10] ip6_dst_alloc+0x23/0x90 [ 124.450201][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 124.450201][ T10] ip6_pol_route+0x56f/0x840 [ 124.450201][ T10] fib6_rule_lookup+0x456/0x630 [ 124.450201][ T10] ip6_route_input+0x59c/0xa40 [ 124.450201][ T10] ipv6_rcv+0x184/0x520 [ 124.450201][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 124.450201][ T10] process_backlog+0x101/0x620 [ 124.450201][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 124.450201][ T10] net_rx_action+0x495/0xbe0 [ 124.450201][ T10] __do_softirq+0x1b5/0x7f6 [ 124.450201][ T10] [ 134.593888][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 213 [ 134.594381][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 134.594381][ T10] netdev_get_by_index+0x5e/0x80 [ 134.594381][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.594381][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.594381][ T10] ip6_route_add+0x1c/0x140 [ 134.594381][ T10] addrconf_prefix_route+0x2a6/0x430 [ 134.594381][ T10] inet6_addr_add+0x4f8/0xa40 [ 134.594381][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 134.594381][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.594381][ T10] netlink_rcv_skb+0x130/0x360 [ 134.594381][ T10] netlink_unicast+0x449/0x710 [ 134.594381][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.594381][ T10] __sys_sendto+0x37d/0x410 [ 134.594381][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.594381][ T10] do_syscall_64+0xc6/0x1e0 [ 134.594381][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.594381][ T10] [ 134.596654][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 100/212 users at [ 134.596654][ T10] netdev_get_by_index+0x5e/0x80 [ 134.596654][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.596654][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.596654][ T10] addrconf_f6i_alloc+0x315/0x560 [ 134.596654][ T10] ipv6_add_addr+0x411/0x2000 [ 134.596654][ T10] inet6_addr_add+0x30e/0xa40 [ 134.596654][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 134.596654][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.596654][ T10] netlink_rcv_skb+0x130/0x360 [ 134.596654][ T10] netlink_unicast+0x449/0x710 [ 134.596654][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.596654][ T10] __sys_sendto+0x37d/0x410 [ 134.596654][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.596654][ T10] do_syscall_64+0xc6/0x1e0 [ 134.596654][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.596654][ T10] [ 134.598839][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 134.598839][ T10] dst_init+0x84/0x4a0 [ 134.598839][ T10] dst_alloc+0x97/0x150 [ 134.598839][ T10] ip6_dst_alloc+0x23/0x90 [ 134.598839][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 134.598839][ T10] ip6_pol_route+0x56f/0x840 [ 134.598839][ T10] fib6_rule_lookup+0x334/0x630 [ 134.598839][ T10] ip6_route_output_flags+0x259/0x480 [ 134.598839][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 134.598839][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 134.598839][ T10] tcp_v6_send_response+0x1008/0x2340 [ 134.598839][ T10] tcp_v6_timewait_ack+0x35b/0x7d0 [ 134.598839][ T10] tcp_v6_rcv+0xcac/0x2540 [ 134.598839][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 134.598839][ T10] ip6_input+0x165/0x2b0 [ 134.598839][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 134.598839][ T10] process_backlog+0x101/0x620 [ 134.598839][ T10] [ 134.601055][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 4/212 users at [ 134.601055][ T10] dst_init+0x84/0x4a0 [ 134.601055][ T10] dst_alloc+0x97/0x150 [ 134.601055][ T10] ip6_dst_alloc+0x23/0x90 [ 134.601055][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 134.601055][ T10] ip6_pol_route+0x56f/0x840 [ 134.601055][ T10] fib6_rule_lookup+0x456/0x630 [ 134.601055][ T10] ip6_route_input+0x59c/0xa40 [ 134.601055][ T10] ipv6_rcv+0x184/0x520 [ 134.601055][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 134.601055][ T10] process_backlog+0x101/0x620 [ 134.601055][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 134.601055][ T10] net_rx_action+0x495/0xbe0 [ 134.601055][ T10] __do_softirq+0x1b5/0x7f6 [ 134.601055][ T10] [ 134.602858][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 2/212 users at [ 134.602858][ T10] dst_init+0x84/0x4a0 [ 134.602858][ T10] dst_alloc+0x97/0x150 [ 134.602858][ T10] ip6_dst_alloc+0x23/0x90 [ 134.602858][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 134.602858][ T10] ip6_pol_route+0x56f/0x840 [ 134.602858][ T10] fib6_rule_lookup+0x334/0x630 [ 134.602858][ T10] ip6_route_output_flags+0x259/0x480 [ 134.602858][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 134.602858][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 134.602858][ T10] tcp_v6_connect+0xa69/0x1ba0 [ 134.602858][ T10] __inet_stream_connect+0x272/0x9f0 [ 134.602858][ T10] inet_stream_connect+0x57/0xa0 [ 134.602858][ T10] __sys_connect+0x217/0x2a0 [ 134.602858][ T10] __x64_sys_connect+0x72/0xb0 [ 134.602858][ T10] do_syscall_64+0xc6/0x1e0 [ 134.602858][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.602858][ T10] [ 134.605052][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 134.605052][ T10] netdev_get_by_index+0x5e/0x80 [ 134.605052][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.605052][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.605052][ T10] ip6_route_add+0x1c/0x140 [ 134.605052][ T10] inet6_rtm_newroute+0x104/0x110 [ 134.605052][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.605052][ T10] netlink_rcv_skb+0x130/0x360 [ 134.605052][ T10] netlink_unicast+0x449/0x710 [ 134.605052][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.605052][ T10] __sys_sendto+0x37d/0x410 [ 134.605052][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.605052][ T10] do_syscall_64+0xc6/0x1e0 [ 134.605052][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.605052][ T10] [ 134.606964][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 134.606964][ T10] netdev_get_by_index+0x5e/0x80 [ 134.606964][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.606964][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.606964][ T10] ip6_route_add+0x1c/0x140 [ 134.606964][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 134.606964][ T10] addrconf_add_dev+0xe2/0x170 [ 134.606964][ T10] inet6_addr_add+0x12f/0xa40 [ 134.606964][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 134.606964][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.606964][ T10] netlink_rcv_skb+0x130/0x360 [ 134.606964][ T10] netlink_unicast+0x449/0x710 [ 134.606964][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.606964][ T10] __sys_sendto+0x37d/0x410 [ 134.606964][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.606964][ T10] do_syscall_64+0xc6/0x1e0 [ 134.606964][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.606964][ T10] [ 134.609232][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 134.609232][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 134.609232][ T10] ipv6_find_idev+0x102/0x170 [ 134.609232][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 134.609232][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.609232][ T10] netlink_rcv_skb+0x130/0x360 [ 134.609232][ T10] netlink_unicast+0x449/0x710 [ 134.609232][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.609232][ T10] __sys_sendto+0x37d/0x410 [ 134.609232][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.609232][ T10] do_syscall_64+0xc6/0x1e0 [ 134.609232][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.609232][ T10] [ 134.610867][ T10] ref_tracker: ktst-veth@ffff888004b5c5b8 has 1/212 users at [ 134.610867][ T10] neigh_parms_alloc+0x1e5/0x510 [ 134.610867][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 134.610867][ T10] ipv6_find_idev+0x102/0x170 [ 134.610867][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 134.610867][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.610867][ T10] netlink_rcv_skb+0x130/0x360 [ 134.610867][ T10] netlink_unicast+0x449/0x710 [ 134.610867][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.610867][ T10] __sys_sendto+0x37d/0x410 [ 134.610867][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.610867][ T10] do_syscall_64+0xc6/0x1e0 [ 134.610867][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.610867][ T10] [ 134.612677][ T10] unregister_netdevice: waiting for ktst-veth to become free. Usage count = 8581 [ 134.614391][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 378/8580 users at [ 134.614391][ T10] dst_init+0x84/0x4a0 [ 134.614391][ T10] dst_alloc+0x97/0x150 [ 134.614391][ T10] ip6_dst_alloc+0x23/0x90 [ 134.614391][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 134.614391][ T10] ip6_pol_route+0x56f/0x840 [ 134.614391][ T10] fib6_rule_lookup+0x334/0x630 [ 134.614391][ T10] ip6_route_output_flags+0x259/0x480 [ 134.614391][ T10] ip6_dst_lookup_tail.constprop.0+0x700/0xb60 [ 134.614391][ T10] ip6_dst_lookup_flow+0x88/0x190 [ 134.614391][ T10] inet6_csk_route_req+0x4af/0x6e0 [ 134.614391][ T10] tcp_conn_request+0xa5d/0x2d10 [ 134.614391][ T10] tcp_rcv_state_process+0x453/0x1fe0 [ 134.614391][ T10] tcp_v6_do_rcv+0x343/0x12f0 [ 134.614391][ T10] tcp_v6_rcv+0x2166/0x2540 [ 134.614391][ T10] ip6_protocol_deliver_rcu+0x125/0x1270 [ 134.614391][ T10] ip6_input+0x165/0x2b0 [ 134.614391][ T10] [ 134.616678][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 8193/8580 users at [ 134.616678][ T10] netdev_get_by_index+0x5e/0x80 [ 134.616678][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.616678][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.616678][ T10] ip6_route_add+0x1c/0x140 [ 134.616678][ T10] inet6_rtm_newroute+0x104/0x110 [ 134.616678][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.616678][ T10] netlink_rcv_skb+0x130/0x360 [ 134.616678][ T10] netlink_unicast+0x449/0x710 [ 134.616678][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.616678][ T10] __sys_sendto+0x37d/0x410 [ 134.616678][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.616678][ T10] do_syscall_64+0xc6/0x1e0 [ 134.616678][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.616678][ T10] [ 134.618736][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 4/8580 users at [ 134.618736][ T10] dst_init+0x84/0x4a0 [ 134.618736][ T10] dst_alloc+0x97/0x150 [ 134.618736][ T10] ip6_dst_alloc+0x23/0x90 [ 134.618736][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 134.618736][ T10] ip6_pol_route+0x56f/0x840 [ 134.618736][ T10] fib6_rule_lookup+0x456/0x630 [ 134.618736][ T10] ip6_route_input+0x59c/0xa40 [ 134.618736][ T10] ipv6_rcv+0x184/0x520 [ 134.618736][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 134.618736][ T10] process_backlog+0x101/0x620 [ 134.618736][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 134.618736][ T10] net_rx_action+0x495/0xbe0 [ 134.618736][ T10] __do_softirq+0x1b5/0x7f6 [ 134.618736][ T10] [ 134.620769][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 134.620769][ T10] netdev_get_by_index+0x5e/0x80 [ 134.620769][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.620769][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.620769][ T10] ip6_route_add+0x1c/0x140 [ 134.620769][ T10] addrconf_prefix_route+0x2a6/0x430 [ 134.620769][ T10] inet6_addr_add+0x4f8/0xa40 [ 134.620769][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 134.620769][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.620769][ T10] netlink_rcv_skb+0x130/0x360 [ 134.620769][ T10] netlink_unicast+0x449/0x710 [ 134.620769][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.620769][ T10] __sys_sendto+0x37d/0x410 [ 134.620769][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.620769][ T10] do_syscall_64+0xc6/0x1e0 [ 134.620769][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.620769][ T10] [ 134.622880][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 134.622880][ T10] netdev_get_by_index+0x5e/0x80 [ 134.622880][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.622880][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.622880][ T10] addrconf_f6i_alloc+0x315/0x560 [ 134.622880][ T10] ipv6_add_addr+0x411/0x2000 [ 134.622880][ T10] inet6_addr_add+0x30e/0xa40 [ 134.622880][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 134.622880][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.622880][ T10] netlink_rcv_skb+0x130/0x360 [ 134.622880][ T10] netlink_unicast+0x449/0x710 [ 134.622880][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.622880][ T10] __sys_sendto+0x37d/0x410 [ 134.622880][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.622880][ T10] do_syscall_64+0xc6/0x1e0 [ 134.622880][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.622880][ T10] [ 134.625287][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 134.625287][ T10] netdev_get_by_index+0x5e/0x80 [ 134.625287][ T10] fib6_nh_init+0x3d8/0x15b0 [ 134.625287][ T10] ip6_route_info_create+0xf18/0x17d0 [ 134.625287][ T10] ip6_route_add+0x1c/0x140 [ 134.625287][ T10] addrconf_add_mroute+0x1ac/0x2c0 [ 134.625287][ T10] addrconf_add_dev+0xe2/0x170 [ 134.625287][ T10] inet6_addr_add+0x12f/0xa40 [ 134.625287][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 134.625287][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.625287][ T10] netlink_rcv_skb+0x130/0x360 [ 134.625287][ T10] netlink_unicast+0x449/0x710 [ 134.625287][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.625287][ T10] __sys_sendto+0x37d/0x410 [ 134.625287][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.625287][ T10] do_syscall_64+0xc6/0x1e0 [ 134.625287][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.625287][ T10] [ 134.627493][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 134.627493][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 134.627493][ T10] ipv6_find_idev+0x102/0x170 [ 134.627493][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 134.627493][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.627493][ T10] netlink_rcv_skb+0x130/0x360 [ 134.627493][ T10] netlink_unicast+0x449/0x710 [ 134.627493][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.627493][ T10] __sys_sendto+0x37d/0x410 [ 134.627493][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.627493][ T10] do_syscall_64+0xc6/0x1e0 [ 134.627493][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.627493][ T10] [ 134.629261][ T10] ref_tracker: ktst-veth@ffff88800516c5b8 has 1/8580 users at [ 134.629261][ T10] neigh_parms_alloc+0x1e5/0x510 [ 134.629261][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 134.629261][ T10] ipv6_find_idev+0x102/0x170 [ 134.629261][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 134.629261][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 134.629261][ T10] netlink_rcv_skb+0x130/0x360 [ 134.629261][ T10] netlink_unicast+0x449/0x710 [ 134.629261][ T10] netlink_sendmsg+0x723/0xbe0 [ 134.629261][ T10] __sys_sendto+0x37d/0x410 [ 134.629261][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 134.629261][ T10] do_syscall_64+0xc6/0x1e0 [ 134.629261][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 134.629261][ T10] [ 134.631089][ T10] unregister_netdevice: waiting for lo to become free. Usage count = 397 [ 134.631494][ T10] ref_tracker: lo@ffff888005e945b8 has 396/396 users at [ 134.631494][ T10] dst_init+0x84/0x4a0 [ 134.631494][ T10] dst_alloc+0x97/0x150 [ 134.631494][ T10] ip6_dst_alloc+0x23/0x90 [ 134.631494][ T10] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 134.631494][ T10] ip6_pol_route+0x56f/0x840 [ 134.631494][ T10] fib6_rule_lookup+0x456/0x630 [ 134.631494][ T10] ip6_route_input+0x59c/0xa40 [ 134.631494][ T10] ipv6_rcv+0x184/0x520 [ 134.631494][ T10] __netif_receive_skb_one_core+0x118/0x1b0 [ 134.631494][ T10] process_backlog+0x101/0x620 [ 134.631494][ T10] __napi_poll.constprop.0+0xa2/0x460 [ 134.631494][ T10] net_rx_action+0x495/0xbe0 [ 134.631494][ T10] __do_softirq+0x1b5/0x7f6 [ 134.631494][ T10]