HARD STOP (0) WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr [10211.029842][ T723] unregister_netdevice: waiting for dummy1 to become free. Usage count = 8 [10211.030222][ T723] ref_tracker: dummy1@ffff888008b645b0 has 2/7 users at [10211.030222][ T723] ip6_route_check_nh+0x4b8/0x6a0 [10211.030222][ T723] ip6_validate_gw+0x3eb/0x790 [10211.030222][ T723] fib6_nh_init+0xa5b/0x15b0 [10211.030222][ T723] ip6_route_info_create+0xf18/0x17d0 [10211.030222][ T723] ip6_route_add+0x1c/0x140 [10211.030222][ T723] inet6_rtm_newroute+0x104/0x110 [10211.030222][ T723] rtnetlink_rcv_msg+0x2fb/0xbf0 [10211.030222][ T723] netlink_rcv_skb+0x130/0x360 [10211.030222][ T723] netlink_unicast+0x449/0x710 [10211.030222][ T723] netlink_sendmsg+0x723/0xbe0 [10211.030222][ T723] ____sys_sendmsg+0x7b2/0xa10 [10211.030222][ T723] ___sys_sendmsg+0xee/0x170 [10211.030222][ T723] __sys_sendmsg+0xcd/0x170 [10211.030222][ T723] do_syscall_64+0xc6/0x1e0 [10211.030222][ T723] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10211.030222][ T723] [10211.032345][ T723] ref_tracker: dummy1@ffff888008b645b0 has 1/7 users at [10211.032345][ T723] netdev_get_by_index+0x5e/0x80 [10211.032345][ T723] fib6_nh_init+0x3d8/0x15b0 [10211.032345][ T723] ip6_route_info_create+0xf18/0x17d0 [10211.032345][ T723] ip6_route_add+0x1c/0x140 [10211.032345][ T723] addrconf_prefix_route+0x1cc/0x2b0 [10211.032345][ T723] inet6_addr_add+0x4f8/0xa40 [10211.032345][ T723] inet6_rtm_newaddr+0x560/0x6b0 [10211.032345][ T723] rtnetlink_rcv_msg+0x2fb/0xbf0 [10211.032345][ T723] netlink_rcv_skb+0x130/0x360 [10211.032345][ T723] netlink_unicast+0x449/0x710 [10211.032345][ T723] netlink_sendmsg+0x723/0xbe0 [10211.032345][ T723] ____sys_sendmsg+0x7b2/0xa10 [10211.032345][ T723] ___sys_sendmsg+0xee/0x170 [10211.032345][ T723] __sys_sendmsg+0xcd/0x170 [10211.032345][ T723] do_syscall_64+0xc6/0x1e0 [10211.032345][ T723] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10211.032345][ T723] [10211.034778][ T723] ref_tracker: dummy1@ffff888008b645b0 has 1/7 users at [10211.034778][ T723] netdev_get_by_index+0x5e/0x80 [10211.034778][ T723] fib6_nh_init+0x3d8/0x15b0 [10211.034778][ T723] ip6_route_info_create+0xf18/0x17d0 [10211.034778][ T723] addrconf_f6i_alloc+0x244/0x410 [10211.034778][ T723] ipv6_add_addr+0x411/0x2000 [10211.034778][ T723] inet6_addr_add+0x30e/0xa40 [10211.034778][ T723] inet6_rtm_newaddr+0x560/0x6b0 [10211.034778][ T723] rtnetlink_rcv_msg+0x2fb/0xbf0 [10211.034778][ T723] netlink_rcv_skb+0x130/0x360 [10211.034778][ T723] netlink_unicast+0x449/0x710 [10211.034778][ T723] netlink_sendmsg+0x723/0xbe0 [10211.034778][ T723] ____sys_sendmsg+0x7b2/0xa10 [10211.034778][ T723] ___sys_sendmsg+0xee/0x170 [10211.034778][ T723] __sys_sendmsg+0xcd/0x170 [10211.034778][ T723] do_syscall_64+0xc6/0x1e0 [10211.034778][ T723] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10211.034778][ T723] [10211.037043][ T723] ref_tracker: dummy1@ffff888008b645b0 has 1/7 users at [10211.037043][ T723] netdev_get_by_index+0x5e/0x80 [10211.037043][ T723] fib6_nh_init+0x3d8/0x15b0 [10211.037043][ T723] ip6_route_info_create+0xf18/0x17d0 [10211.037043][ T723] ip6_route_add+0x1c/0x140 [10211.037043][ T723] addrconf_add_mroute+0x129/0x180 [10211.037043][ T723] addrconf_add_dev+0xe2/0x170 [10211.037043][ T723] inet6_addr_add+0x12f/0xa40 [10211.037043][ T723] inet6_rtm_newaddr+0x560/0x6b0 [10211.037043][ T723] rtnetlink_rcv_msg+0x2fb/0xbf0 [10211.037043][ T723] netlink_rcv_skb+0x130/0x360 [10211.037043][ T723] netlink_unicast+0x449/0x710 [10211.037043][ T723] netlink_sendmsg+0x723/0xbe0 [10211.037043][ T723] ____sys_sendmsg+0x7b2/0xa10 [10211.037043][ T723] ___sys_sendmsg+0xee/0x170 [10211.037043][ T723] __sys_sendmsg+0xcd/0x170 [10211.037043][ T723] do_syscall_64+0xc6/0x1e0 [10211.037043][ T723] [10211.039253][ T723] ref_tracker: dummy1@ffff888008b645b0 has 1/7 users at [10211.039253][ T723] ipv6_add_dev+0x3ba/0x11c0 [10211.039253][ T723] ipv6_find_idev+0x102/0x170 [10211.039253][ T723] inet6_rtm_newaddr+0x37c/0x6b0 [10211.039253][ T723] rtnetlink_rcv_msg+0x2fb/0xbf0 [10211.039253][ T723] netlink_rcv_skb+0x130/0x360 [10211.039253][ T723] netlink_unicast+0x449/0x710 [10211.039253][ T723] netlink_sendmsg+0x723/0xbe0 [10211.039253][ T723] ____sys_sendmsg+0x7b2/0xa10 [10211.039253][ T723] ___sys_sendmsg+0xee/0x170 [10211.039253][ T723] __sys_sendmsg+0xcd/0x170 [10211.039253][ T723] do_syscall_64+0xc6/0x1e0 [10211.039253][ T723] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10211.039253][ T723] [10211.040979][ T723] ref_tracker: dummy1@ffff888008b645b0 has 1/7 users at [10211.040979][ T723] neigh_parms_alloc+0x1e5/0x510 [10211.040979][ T723] ipv6_add_dev+0x2fe/0x11c0 [10211.040979][ T723] ipv6_find_idev+0x102/0x170 [10211.040979][ T723] inet6_rtm_newaddr+0x37c/0x6b0 [10211.040979][ T723] rtnetlink_rcv_msg+0x2fb/0xbf0 [10211.040979][ T723] netlink_rcv_skb+0x130/0x360 [10211.040979][ T723] netlink_unicast+0x449/0x710 [10211.040979][ T723] netlink_sendmsg+0x723/0xbe0 [10211.040979][ T723] ____sys_sendmsg+0x7b2/0xa10 [10211.040979][ T723] ___sys_sendmsg+0xee/0x170 [10211.040979][ T723] __sys_sendmsg+0xcd/0x170 [10211.040979][ T723] do_syscall_64+0xc6/0x1e0 [10211.040979][ T723] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10211.040979][ T723]